CN108923791B

CN108923791B - Multi-way selector switch and related products

Info

Publication number: CN108923791B
Application number: CN201810713084.1A
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: 2020-09-25
Anticipated expiration: 2038-06-29
Also published as: CN108923791A

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 6T ports and 4P ports, the 6T ports comprise 4 first T ports and 2 second T ports, the electronic equipment supports a dual-frequency dual-transmission mode, each first T port is fully connected with 4P ports, each second T port is connected with 3P ports in the 4P ports, the P ports connected with the second T ports supporting the signal receiving function of different frequency bands 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

The application relates to the technical field of communication, in particular to a multi-way selection 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, so as to improve 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 6T ports and 4P ports, the 6T ports include 4 first T ports and 2 second T ports, the electronic device supports a dual-frequency dual-transmission mode, each first T port is fully connected to the 4P ports, each second T port is connected to 3P ports of the 4P ports, the P ports connected to a plurality of second T ports supporting signal receiving functions in different frequency bands 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 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 simultaneous data receiving of the 4 antennas.

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, a radio frequency circuit, and a multi-way selector switch, the multi-way selector switch includes 6T ports and 4P ports, the 6T ports include 4 first T ports and 2 second T ports, the electronic device supports a dual-transmission mode, each first T port is fully connected to the 4P ports, each second T port is connected to 3P ports of the 4P ports, the P ports connected to a plurality of second T ports supporting signal receiving functions of different frequency bands 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 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 the matching state between 2T ports of 4T ports currently occupied by the second function and the 4P ports according to the P port currently occupied by the first function, where the 2T ports are T ports of the 4T ports except for the first T port.

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 multi-way selection switch according to any one of the first aspect;

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 multi-way selection switch according to any one of the first aspect;

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.

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 6T 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.

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 4P6T full-connection switch provided in an embodiment of the present application;

fig. 3 is a schematic structural diagram of a simplified 4P6T switch provided in the embodiments of the present application;

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

fig. 4B is an exemplary structure of the multi-way selector switch in the dual-frequency dual-transmission mode, where n is 6, m is 4, and provided in this embodiment of the present application;

fig. 5A is another exemplary structure of a radio frequency circuit provided in an embodiment of the present application;

fig. 5B is another exemplary structure of a radio frequency circuit provided in an embodiment of the present application;

fig. 5C is another exemplary structure of a radio frequency circuit provided in an embodiment of the present application;

fig. 5D is another exemplary structure of a radio frequency circuit provided in an embodiment of the present application;

fig. 5E is another exemplary structure of a radio frequency circuit provided in an embodiment of the present application;

fig. 5F is another exemplary structure of a radio frequency circuit provided in an embodiment of the present application;

fig. 5G is another exemplary structure of a radio frequency circuit provided in an embodiment of the present application;

fig. 5H is another exemplary structure of a radio frequency circuit provided in an embodiment of the present application;

fig. 5I is another exemplary structure of a radio frequency circuit provided in an embodiment of the present application;

fig. 5J is another exemplary structure of a radio frequency circuit provided in an embodiment of the present application;

fig. 6 is an exemplary structure of an antenna system provided in an embodiment of the present application;

fig. 7 is an exemplary structure of another antenna system provided in the embodiments of the present application;

fig. 8 is a flowchart illustrating a method for controlling functions of an electronic device according to an embodiment of the present disclosure;

fig. 9 is an exemplary structure of a radio frequency system according to an embodiment of the present application;

fig. 10 is an exemplary structure of a wireless communication device provided in an embodiment of the present application;

fig. 11 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. 12 is a schematic structural diagram of a loop array antenna composed of 4 antennas according to an embodiment of the present application.

Detailed Description

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 a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present disclosure.

The terms "first," "second," and the like in the description and claims of the present application and in the above-described 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 multi-input multi-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 transmission of 4-antenna SRS and simultaneous operation of downlink 4X4MIMO in an FDD NR system and/or an FDD LTE system, the radio frequency architecture provided in the embodiment 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 into the 4PnT switch) compared with a 3P 3T/DPDT/multi-path small-switch switching scheme, thereby reducing link loss and optimizing the overall transmission and reception performance of the terminal. The following describes embodiments of the present application in detail.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a multi-way selector switch 10 provided in an embodiment of the present application, the multi-way selector switch is applied to an electronic device 100, the electronic device 100 includes an antenna system 20 and a radio frequency circuit 30, the antenna system 20 includes 4 antennas, the multi-way selector switch 10 includes n T ports and 4P ports, the n T ports include m first T ports and n-m second T ports, the electronic device supports a dual-frequency dual transmission mode, each first T port is fully 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 of different frequency bands 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, m is equal to 1 or 2 or 4, n is an integer greater than or equal to 4; in the embodiments of the present application, n is 6, and m is 4.

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 100 in a frequency division multiplexing FDD system, where the preset function includes a first function and a second function, the first function is to support alternate transmission of SRS between transmitting antennas through sounding reference signals SRS and to transmit SRS with 4 ports, and the second function is to support simultaneous data reception by the 4 antennas.

The function of supporting alternate transmission of the sounding reference signal SRS among the transmitting antennas and transmitting the 4-port SRS refers to a process that the electronic equipment and the base station interactively determine the channel quality corresponding to each antenna 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 6T 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 4P ports, the number, volume and cost of built-in field effect transistors of a 4P6T 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 n is 6, the multi-way switch is composed of fets, and if each of the 4T ports is fully connected to 4P ports, the number of fets in the multi-way switch is 6+6 × 4 × 3+4 — 82 as shown in the exemplary structure diagram of the multi-way switch 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 6+ (4 × 4+ (6-4) × 3+4 ═ 76, 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.

It can be seen that, in the example 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 6T ports and 4P ports, and the multi-way selection switch is connected to the radio frequency circuit and the antenna system, because the second T port of the multi-way selection switch only needs to be connected to 2P ports, the preset function in the FDD scheme 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 the insertion loss of a radio frequency link switch, improving the radio frequency index performance of the electronic device, and compared with a switch in which the second T port is connected to only a single P port, the preset function in the FDD scheme can be supported, that is the functionality of the electronic device is expanded.

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

Since the electronic device supports a dual-frequency dual-transmission mode, in a new air interface 5G NR system of fifth generation mobile communication, the electronic device supports at most a dual-frequency single uplink UL2 × 2MIMO downlink DL4 × 4MIMO, that is, logically includes 8 signal receiving paths and 2 signal transmitting paths.

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 4 first T ports and 2 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.

The dual-frequency dual-transmission mode refers to an operating mode in which the electronic device can support a dual-band, a UL dual-transmission path, or a DL4 reception path to the maximum capacity.

In one possible example, the multiway switch includes 6 first switch tubes, (4 × 4+ (6-4) × 3 second switch tubes, and 4 third switch tubes, the first switch tubes correspond to the T ports, the third switch tubes correspond to the P ports, each 3 second switch tubes are connected in series to form a switch subunit between the T ports and the P ports, 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 gates 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 this possible example, as shown in fig. 4A, the transceiver processing circuit includes a power amplifier PA, a low noise amplifier LNA, a duplexer, and a power coupler, the 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 connect the duplexer, the duplexer connects the coupler, and the coupler connects the first T port;

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

In this example, the transmit-receive signal processing circuit and the receive signal integrated 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 this possible example, the radio frequency circuit of the electronic device logically includes 4-path transceiving signal processing circuits and 2-path receiving signal integrated circuits, each including 2-path receiving signal processing circuits operating in different frequency bands;

the at least 1 independent circuit module includes k independent circuit modules, where k is 1, 2, 3, 4, 5, or 6, signal transceiving ports of the k independent circuit modules are used to connect to corresponding first T ports, and signal receiving ports of the k independent circuit modules are used to connect to corresponding second T ports.

As shown in fig. 4B, in the dual-frequency dual-transmission mode, the number of switching tubes of the multi-way switch is 72, 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 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 radio frequency circuit of the electronic device logically includes 4-way transceiving signal processing circuits and 2-way receiving signal integrated circuits, each including 2-way receiving signal processing circuits operating at different frequency bands;

the radio frequency circuit is physically composed of k independent circuit modules, wherein k is any one of the following numerical values: 1. 2, 3, 4, 5 and 6;

the signal receiving and transmitting ports of the k independent circuit modules are used for being connected with corresponding first T ports, and the signal receiving ports of the 2 independent circuit modules are used for being connected with corresponding second T ports.

The radio frequency circuit of the electronic equipment logically comprises a 4-path receiving and transmitting signal processing circuit and a 2-path receiving signal integrated circuit; every way receives and dispatches signal processing circuit and supports 1 way received signal processing circuit of same frequency channel and forms receiving and dispatching signal processing circuit through the duplexer parallel connection, the duplexer is used for combining the transmitted signal and the received signal of same frequency channel, in order to realize electronic equipment is in the simultaneous working of transmission and receipt on different frequency points under the FDD standard.

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 one possible example, as shown in fig. 5A, when k is 2, the 2 independent circuit modules include 2 first independent circuit modules, each of which includes 2 transceiver signal processing circuits and 1 receiver signal integrated circuit.

In one possible example, as shown in fig. 5B, when k is 2, the 2 independent circuit modules include a second independent circuit module including the 4-way transceiving signal processing circuit and a third independent circuit module including the 2-way receiving signal integrated circuit.

In one possible example, as shown in fig. 5C, when k is 3, the 3 independent circuit modules include 2 fourth independent circuit modules each including 2-way transceiving signal processing circuits and 1 fifth independent circuit module including 2-way receiving signal integrated circuits.

In one possible example, as shown in fig. 5D, when k is 3, the 3 independent circuit modules include 2 sixth independent circuit modules and 1 seventh independent circuit module, each sixth independent circuit module includes 1-way transceiving signal processing circuit and 1-way receiving signal integrated circuit, and the seventh independent circuit module includes 2-way transceiving signal processing circuit.

In one possible example, as shown in fig. 5E, when k is 3, the 3 independent circuit modules include 1 eighth independent circuit module including 4-way transceiving signal processing circuits and 2 ninth independent circuit modules, each of which includes 1-way receiving signal integrated circuit.

In one possible example, as shown in fig. 5F, when k is 4, the 4 independent circuit modules include 2 tenth independent circuit modules, 1 eleventh independent circuit module and 1 twelfth independent circuit module, each tenth independent circuit module includes 1 transceiving signal processing circuit, the eleventh independent circuit module includes 2 transceiving signal processing circuits, and the twelfth independent circuit module includes 2 receiving signal integrated circuits.

In one possible example, as shown in fig. 5G, when k is 4, the 4 independent circuit modules include 2 thirteenth independent circuit modules and 2 fourteenth independent circuit modules, each thirteenth independent circuit module includes 1 transceiver signal processing circuit, and each fourteenth independent circuit module includes 1 transceiver signal processing circuit and 1 receiver signal integrated circuit.

In one possible example, as shown in fig. 5H, when k is 4, the 4 independent circuit modules include 2 fifteenth independent circuit modules and 2 sixteenth independent circuit modules, each fifteenth independent circuit module includes 2 transceiver signal processing circuits, and each sixteenth independent circuit module includes 1 receiver signal integrated circuit.

In one possible example, as shown in fig. 5I, when k is 5, the 5 independent circuit modules include 4 sixteenth independent circuit modules and 1 seventeenth independent circuit module, each sixteenth independent circuit module includes 1 transceiver signal processing circuit, and each seventeenth independent circuit module includes 2 receiver signal integrated circuits.

In one possible example, as shown in fig. 5J, when k is 6, the 6 independent circuit modules include 4 eighteenth independent circuit modules and 2 nineteenth independent circuit modules, each eighteenth independent circuit module includes 1-way transceiving signal processing circuit, and each nineteenth independent circuit module includes 1-way receiving signal integrated circuit.

Fig. 5A to 5J show specific physical configurations of the rf circuit, but of course, other possible combinations are also included, and this is not limited herein.

Wherein, because FDD standard, two modes of sending out, the condition of simultaneous working (corresponding UL MIMO mode) can appear in 2 PAs of 2 way transmission signal processing circuit, transmitting power is great this moment, 2 way signals can mutual interference to influence the radiating efficiency when 2 PAs work simultaneously, so need 2 independent circuit module to set up the PA in the transmission signal processing circuit, be favorable to reducing the interference, improve radio frequency system signal processing efficiency and radiating efficiency.

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.

It can be seen that, in this example, the physical form of the rf circuit adapted to the 4P6T multi-way selector switch may be various, and may be flexibly configured according to the requirement.

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 an LTE band and a 5G NR band, and the second antenna and the third antenna are antennas supporting only a 5G NR band.

Wherein, the first and the fourth antennas are used for supporting DL 4x4MIMO of individual frequency bands on the LTE terminal. Its 2 receive antennas are shared with the 5G NR antenna. The LTE frequency bands may include, for example, 1880-1920MHz, 2496-2690 MHz.

In one possible example, as shown in fig. 6, the antenna system further includes a first combiner and a second combiner, where a first port of the first combiner is used to connect the first antenna, a second port of the first combiner is used to connect a first receiving path in LTE4x4MIMO of the electronic device, and a third port of the first combiner is used to connect a corresponding P port in the multi-way selector switch; a first port of the second combiner is used for connecting the fourth antenna, a second port of the second combiner is used for connecting a second receiving channel in LTE4x4MIMO of the electronic device, and a third port of the second combiner is used for connecting a corresponding P port in the multi-path selector switch.

The LTE4 × 4MIMO is a downlink LTE receiving circuit, and may be defined as a third receiving path. Since LTE currently has 2 receptions. When LTE4x4MIMO is supported, third and fourth receive channels may be 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. 7, 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 receive path in LTE4x4MIMO of the electronic device, and a third port of the first SPDT switch is configured to connect to a corresponding P port in the multi-way selection switch; the first port of the second SPDT switch is configured to be connected to the fourth antenna, the second port of the second SPDT switch is configured to be connected to a second receiving path in the LTE4x4MIMO of the electronic device, and the third port of the second SPDT switch is configured to be connected to a corresponding P port in the multiplexer switch.

Referring to fig. 8, fig. 8 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, a radio frequency circuit, and a multi-way selector switch, the multi-way selector switch includes n T ports and 4P ports, the 6T ports include 4 first T ports and 2 second T ports, the electronic device supports a dual-transmission mode, each first T port is fully connected to the 4P ports, each second T port is connected to 3P ports of the 4P ports, the P ports connected to a plurality of second T ports supporting signal receiving functions of different frequency bands 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:

s801, the electronic device 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;

s802, in the process of enabling the first function, the electronic device adjusts the matching state between 2T ports of 4T ports currently occupied by the second function and the 4P ports according to the P port currently occupied by the first function, wherein the 2T ports are T ports of the 4T ports except the first T port.

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.

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 multiway switch shown in fig. 4B 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, the dual-frequency dual transmission of the present application supports dual-frequency, but the SRS process in the same time period only detects one frequency band, where it is assumed that an Nx frequency band is detected, and it is assumed that 4T ports of the Nx frequency band in the initial state of the multi-way switch are sequentially connected to the 4P ports, that is, a first T port T1 of the 4T ports is connected to P1, a third T port T3 is connected to P2, a fifth T port T5 is connected to P3, and a sixth T port T6 is connected to P4, since only 2 antennas can transmit in one sounding cycle, 4 antennas need to be polled and there are 2 sounding cycles; the 4P ports are respectively connected to the 4 antennas, and when the electronic device determines that the preset function is enabled, in the process of enabling the SRS, the electronic device only has 2 antennas to transmit in one sounding period because the electronic device is dual-frequency dual-transmitter, for example, the electronic device can receive Nx signal and detect channel quality of the first antenna and the second antenna through a T1 and a P1 path (the path is pre-conducted to be used as a receiving path) and T3 and P2 in a first sounding period, and the P ports corresponding to T5 and T6 are not occupied in the first sounding period, so that no switching occurs in the period.

Secondly, the electronic device may control T1 to switch from the initial state connection P1 to the connection P3 and T3 to switch from the initial state connection P2 to P4 in the second detection period, so that T1 and P3 and T2 and P4 are turned on to transmit Nx signals for channel detection of the third and fourth antennas, P3 corresponding to T5 and P4 corresponding to T6 are occupied in this period, in order to maintain the signal receiving function of T5 and T6, T5 needs to switch to be connected to P1, and T6 needs to switch to P2.

To this end, the electronic device completes the SRS detection process, and T1 is connected to P3 for signal reception, T3 is connected to P4 for signal reception, T5 is connected to P1 for signal reception, and T6 is connected to P2 for signal reception.

Referring to fig. 9, fig. 9 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. 10, fig. 10 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 selection switch according to any of the embodiments;

In addition, as shown in fig. 11, 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. 12, the receiving antenna is a loop array antenna formed by the above-mentioned 4 antennas, the 4 antennas specifically include an antenna 1, an antenna 2, an antenna 3, and an antenna 4, where the antenna 1 and the antenna 4 support LTE 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 are used as ports of the loop array antenna, where 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, and 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. By adding the spacer 171 between the antennas, the gating circuit 170 reduces mutual coupling between multiple antennas of the electronic device in a normal communication mode, improves isolation between the multiple antennas, optimizes antenna performance, and can connect the multiple antennas in series to form a loop array antenna through the switch 171, so that the transmitting antenna can be better matched to transmit energy, and in addition, because the capabilities of the antenna 1 and the antenna 4 are stronger than those of the antenna 2 and the antenna 3, the loop array antenna can reduce energy transmission loss as much as possible.

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 applied to electronic equipment, the electronic equipment comprises an antenna system and a radio frequency circuit, the antenna system comprises 4 antennas, the multi-way selector switch comprises 6T ports and 4P ports, the 6T ports comprise 4 first T ports and 2 second T ports, the electronic equipment supports a dual-frequency dual-transmission mode, each first T port is fully connected with the 4P ports, each second T port is connected with 3P ports in the 4P ports, the P ports connected with a plurality of second T ports supporting signal receiving functions of different frequency bands cover the 4P ports, and the P ports connected with each T port in the 4T ports in a signal receiving state are different from each other;

in the process of enabling the first function, the matching states between 2T ports of 4T ports currently occupied by the second function and the 4P ports are adjusted according to the P port currently occupied by the first function, and the 2T ports are T ports of the 4T ports except for the first T port.

2. The multiplexing switch of claim 1 wherein 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.

3. The multiplexing switch of claim 1, wherein the radio frequency circuit of the electronic device logically includes 4-channel transceiving signal processing circuits and 2-channel receiving signal integrated circuits, each of which includes 2-channel receiving signal processing circuits operating in different frequency bands;

the signal receiving and transmitting ports of the k independent circuit modules are used for being connected with corresponding first T ports, and the signal receiving ports of the k independent circuit modules are used for being connected with corresponding second T ports.

4. The multiplexing switch of claim 3, wherein when k is 2, the 2 independent circuit modules comprise 2 first independent circuit modules, each of which comprises 2 transceiver signal processing circuits and 1 receiver signal integrated circuit.

5. The multiplexing switch of claim 3, wherein when k is 2, the 2 independent circuit modules include a second independent circuit module and a third independent circuit module, the second independent circuit module includes 4-channel transceiving signal processing circuits, and the third independent circuit module includes 2-channel receiving signal integrated circuits.

6. The multiplexing switch of claim 3, wherein when k is 3, the 3 independent circuit modules include 2 fourth independent circuit modules and 1 fifth independent circuit module, each fourth independent circuit module includes 2 transceiving signal processing circuits, and the fifth independent circuit module includes 2 transceiving signal integrated circuits.

7. The multiplexing switch of claim 3, wherein when k is 3, the 3 independent circuit modules include 2 sixth independent circuit modules and 1 seventh independent circuit module, each sixth independent circuit module includes 1 transceiving signal processing circuit and 1 receiving signal integrated circuit, and the seventh independent circuit module includes 2 transceiving signal processing circuits.

8. The multiplexing switch of claim 3, wherein when k is 3, the 3 independent circuit modules include 1 eighth independent circuit module and 2 ninth independent circuit modules, the eighth independent circuit module includes 4 transceiving signal processing circuits, and each ninth independent circuit module includes 1 transceiving signal integrated circuit.

9. The multiplexing switch of claim 3, wherein when k is 4, the 4 independent circuit modules include 2 tenth independent circuit modules, 1 eleventh independent circuit module and 1 twelfth independent circuit module, each tenth independent circuit module includes 1 transceiving signal processing circuit, the eleventh independent circuit module includes 2 transceiving signal processing circuits, and the twelfth independent circuit module includes 2 receiving signal integrated circuits.

10. The multiplexing switch of claim 3, wherein when k is 4, the 4 independent circuit modules include 2 thirteenth independent circuit modules and 2 fourteenth independent circuit modules, each thirteenth independent circuit module includes 1 transceiving signal processing circuit, and each fourteenth independent circuit module includes 1 transceiving signal processing circuit and 1 receiving signal integrated circuit.

11. The multiplexing switch of claim 3, wherein when k is 4, the 4 independent circuit modules include 2 fifteenth independent circuit modules and 2 sixteenth independent circuit modules, each fifteenth independent circuit module includes 2 transceiving signal processing circuits, and each sixteenth independent circuit module includes 1 receiving signal integrated circuit.

12. The multiplexing switch of claim 3, wherein when k is 5, the 5 independent circuit modules include 4 sixteenth independent circuit modules and 1 seventeenth independent circuit module, each sixteenth independent circuit module includes 1 transceiving signal processing circuit, and each seventeenth independent circuit module includes 2 transceiving signal integrated circuits.

13. The multiplexing switch of claim 3, wherein when k is 6, the 6 independent circuit modules include 4 eighteenth independent circuit modules and 2 nineteenth independent circuit modules, each eighteenth independent circuit module includes 1-channel transceiving signal processing circuit, and each nineteenth independent circuit module includes 1-channel receiving signal integrated circuit.

14. The multi-way selector switch according to any one of claims 1 to 13, wherein the multi-way selector switch comprises 6 first switch tubes, 66 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 the 1T port and the 1P port, the second switch tube in the middle of the switch subunit is grounded, and gates of each first switch tube, each second switch tube and each third switch tube are connected to a switch control chip.

15. A multiplexer switch according to any of claims 3-13, wherein the transceiver processing circuitry comprises a power amplifier PA, a low noise amplifier LNA, a duplexer and a power coupler, the radio frequency transceiver is connected to an input port of the PA and an 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;

16. The multiplexing switch of claim 1 wherein the 4 antennas comprise a first antenna, a second antenna, a third antenna and a fourth antenna, and wherein the first antenna, the second antenna, the third antenna and the fourth antenna are all antennas supporting a fifth generation new air interface 5G NR frequency band.

17. The multiplexing switch of claim 1, wherein the 4 antennas comprise a first antenna, a second antenna, a third antenna and a fourth antenna, the first antenna and the fourth antenna are antennas supporting LTE band and fifth generation new air interface 5G NR band, and the second antenna and the third antenna are antennas supporting only 5G NR band.

18. The multi-way selection switch of claim 16 or 17, wherein the antenna system further comprises 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 receive path in LTE4x4MIMO of the electronic device, and a third port of the first combiner is configured to connect to a corresponding P port in the multi-way selection switch; a first port of the second combiner is used for connecting the fourth antenna, a second port of the second combiner is used for connecting a second receiving channel in LTE4x4MIMO of the electronic device, and a third port of the second combiner is used for connecting a corresponding P port in the multi-path selector switch.

19. The multiplexing switch of claim 16 or 17, wherein the antenna system further comprises a first Single Pole Double Throw (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 LTE4x4MIMO of the electronic device, and a third port of the first SPDT switch is configured to connect to a corresponding P port in the multiplexing switch; the first port of the second SPDT switch is configured to be connected to the fourth antenna, the second port of the second SPDT switch is configured to be connected to a second receiving path in LTE4x4MIMO of the electronic device, and the third port of the second SPDT switch is configured to be connected to a corresponding P port in the multiplexer switch.

20. 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 6T ports and 4P ports, the 6T ports include 4 first T ports and 2 second T ports, the electronic device supports a dual-transmission mode, each first T port is fully connected with the 4P ports, each second T port is connected with 3P ports of the 4P ports, the P ports connected with a plurality of second T ports supporting signal receiving functions of different frequency bands 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 method comprises the following steps:

21. A radio frequency system comprising an antenna system, radio frequency circuitry and a multiplexer switch according to any of claims 1-17;

22. A wireless communication device comprising an antenna system, radio frequency circuitry, and a multiplexing switch according to any of claims 1-17;