Radio frequency system, antenna switching control method, related device and storage medium

Abstract

This application discloses a radio frequency (RF) system, an antenna switching control method, related equipment, and a storage medium. The RF system includes an RF transceiver and an RF processing circuit, with the RF transceiver connected to the RF processing circuit. The RF processing circuit includes a first transceiver module, a second transceiver module, a first receiving module, and a second receiving module. The first transceiver module establishes a connection path with a first antenna group through a first external switch. The second transceiver module establishes a connection path with a second antenna group through a second external switch. The first receiving module establishes a connection path with a third antenna group and a fourth antenna group. The first external switch is configured to establish a connection path with the second external switch. The first transceiver module is also configured to achieve 1T4R SRS switching via the first, second, third, and fourth antenna groups. This reduces the insertion loss of the transceiver modules while supporting 1T4R functionality.

Description

Technical Field

[0001] This application relates to the field of mobile terminal technology, specifically to a radio frequency system, an antenna switching control method, related equipment, and a storage medium. Background Technology

[0002] With the widespread use of smartphones and other electronic devices, smartphones are supporting an increasing number of applications and becoming more powerful. They are evolving towards diversification and personalization, becoming indispensable electronic devices in users' lives. In 4G mobile communication systems, electronic devices typically use single-antenna or dual-antenna radio frequency systems. Currently, 5G mobile communication systems, particularly New Radio (NR) systems, require radio frequency systems supporting four antenna groups. Summary of the Invention

[0003] This application provides a radio frequency system, an antenna switching control method, related equipment, and a storage medium, which can reduce the switching insertion loss of the transceiver module and improve the sensitivity of the transmit and receive channels while supporting 1T4R functionality.

[0004] In a first aspect, embodiments of this application provide a radio frequency system, including:

[0005] Radio frequency transceiver;

[0006] The radio frequency processing circuit, connected to the radio frequency transceiver, includes a first transceiver module, a second transceiver module, a first receiving module, and a second receiving module. The first transceiver module is configured to establish a connection path with a first antenna group through a first external switching switch. The second transceiver module is configured to establish a connection path with a second antenna group through a second external switching switch. The first receiving module is configured to establish a connection path with a third antenna group. The second receiving module is configured to establish a connection path with a fourth antenna group.

[0007] The first external switch is configured to establish a connection path with the second external switch. The first transceiver module is also configured to establish a connection path with the second antenna group through the first external switch and the second external switch, establish a connection path with the third antenna group through the second transceiver module and the first receiving module, and establish a connection path with the fourth antenna group through the second receiving module. The first transceiver module is also configured to achieve 1T4R SRS switching through the first antenna group, the second antenna group, the third antenna group and the fourth antenna group.

[0008] Secondly, embodiments of this application provide an electronic device including the radio frequency system described in the first aspect, wherein the electronic device includes at least one of the following: a mobile terminal and a base station.

[0009] Thirdly, embodiments of this application provide an antenna switching control method applied to an electronic device, the electronic device including a radio frequency system.

[0010] The radio frequency system includes a radio frequency transceiver and a radio frequency processing circuit connected to the radio frequency transceiver. The radio frequency processing circuit includes a first transceiver module, a second transceiver module, a first receiving module, and a second receiving module. The first transceiver module is configured to establish a connection path with a first antenna group through a first external switching switch. The second transceiver module is configured to establish a connection path with a second antenna group through a second external switching switch. The first receiving module is configured to establish a connection path with a third antenna group. The second receiving module is configured to establish a connection path with a fourth antenna group.

[0011] Configure the first external switch to establish a connection path with the second external switch, configure the first transceiver module to establish a connection path with the second antenna group through the first external switching switch and the second external switching switch, configure the second transceiver module and the first receiving module to establish a connection path with the third antenna group, and configure the second receiving module to establish a connection path with the fourth antenna group, so that the first transmitting module can achieve 1T4R SRS switching through the first antenna group, the second antenna group, the third antenna group and the fourth antenna group.

[0012] Fourthly, embodiments of this application provide an antenna switching control device applied to an electronic device. The electronic device includes a radio frequency (RF) system, which includes an RF transceiver and an RF processing circuit connected to the RF transceiver. The RF processing circuit includes a first transceiver module, a second transceiver module, a first receiving module, and a second receiving module. The first transceiver module is configured to establish a connection path with a first antenna group via a first external switching switch; the second transceiver module is configured to establish a connection path with a second antenna group via a second external switching switch; the first receiving module is configured to establish a connection path with a third antenna group; and the second receiving module is configured to establish a connection path with a fourth antenna group. The antenna switching control device includes a processing unit and a communication unit.

[0013] The processing unit is configured to establish a connection path between the first external switch and the second external switch through the communication unit, configure the first transceiver module to establish a connection path with the second antenna group through the first external switching switch and the second external switching switch, establish a connection path with the third antenna group through the second transceiver module and the first receiving module, and establish a connection path with the fourth antenna group through the second receiving module, so that the first transmitting module can achieve 1T4R SRS switching through the first antenna group, the second antenna group, the third antenna group and the fourth antenna group.

[0014] Fifthly, embodiments of this application provide an electronic device including a processor, a memory, a communication interface, and one or more programs, the one or more programs being stored in the memory and configured to be executed by the processor, the programs including instructions for performing the steps of the method as described in the third aspect.

[0015] In a sixth aspect, embodiments of this application provide a computer-readable storage medium storing a computer program for electronic data interchange, wherein the computer program causes a computer to perform the method described in the third aspect.

[0016] As can be seen, in this embodiment of the application, by configuring the first external switching switch and the second external switching switch to establish a connection path, the first transceiver module can be configured to establish a connection path with the second antenna group through the first external switching switch and the second external switching switch, establish a connection path with the third antenna group through the second transceiver module and the first receiving module, and establish a connection path with the fourth antenna group through the second receiving module. The first transceiver module can be configured to achieve 1T4R SRS switching through the first antenna group, the second antenna group, the third antenna group and the fourth antenna group. It is not necessary to establish an internal transceiver path between the first transceiver module and the second transceiver module to realize the 1T4R function of the RF system. This can reduce the switching loss of the first transceiver module and the second transceiver module, and reduce the switching insertion loss of the transceiver module while supporting the 1T4R function, thereby improving the sensitivity of the transmit and receive channels. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1A This is a schematic diagram of the structure of a radio frequency system provided in an embodiment of this application;

[0019] Figure 1B This is a schematic diagram of the specific structure of a radio frequency system provided in an embodiment of this application;

[0020] Figure 1C This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application;

[0021] Figure 2A This is a schematic diagram of the structure of a receiving module provided in an embodiment of this application;

[0022] Figure 2B This is a schematic diagram of another receiving module provided in an embodiment of this application;

[0023] Figure 2C This is a schematic diagram of another receiving module provided in an embodiment of this application;

[0024] Figure 3A This is a schematic diagram of the structure of a transceiver module provided in an embodiment of this application;

[0025] Figure 3B This is a schematic diagram of another transceiver module provided in an embodiment of this application;

[0026] Figure 3C This is a schematic diagram of another transceiver module provided in an embodiment of this application;

[0027] Figure 4A This is a schematic diagram of the specific structure of a radio frequency system provided in an embodiment of this application;

[0028] Figure 4B This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application;

[0029] Figure 4C This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application;

[0030] Figure 4D This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application;

[0031] Figure 4E This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application;

[0032] Figure 4F This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application;

[0033] Figure 4G This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application;

[0034] Figure 4HThis is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application;

[0035] Figure 4I This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application;

[0036] Figure 4J This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application;

[0037] Figure 4K This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application;

[0038] Figure 4L This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application;

[0039] Figure 4M This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application;

[0040] Figure 4N This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application;

[0041] Figure 4O This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application;

[0042] Figure 4P This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application;

[0043] Figure 4Q This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application;

[0044] Figure 4R This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application;

[0045] Figure 4S This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application;

[0046] Figure 4T This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application;

[0047] Figure 4U This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application;

[0048] Figure 4V This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application;

[0049] Figure 4W This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application;

[0050] Figure 4X This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application;

[0051] Figure 5 This is a flowchart illustrating an antenna switching control method provided in an embodiment of this application;

[0052] Figure 6 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application;

[0053] Figure 7 This is a block diagram of the functional units of an antenna switching control device provided in an embodiment of this application. Detailed Implementation

[0054] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0055] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0056] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0057] The electronic devices involved in the embodiments of this application may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem with wireless communication capabilities, as well as various forms of user equipment (UE), mobile station (MS), terminal device, etc. For ease of description, the devices mentioned above are collectively referred to as electronic devices.

[0058] Currently, the Sounding Reference Signal (SRS) switching 4-antenna transmission function is a mandatory option in the "China Mobile 5G Scale Trial Technology White Paper_Terminal" by China Mobile Communications Group (CMCC), and optional in the 3GPP (3rd Generation Partnership Project). Its main purpose is to allow the base station to measure the uplink signals of the 4 antennas of the mobile phone, thereby confirming the quality and parameters of the 4 channels. Based on the channel reciprocity, the base station then performs downlink optimization beamforming of the MIMO antenna array for the 4 channels, ultimately enabling the downlink 4x4 MIMO to achieve the best data transmission performance.

[0059] Specifically, the electronic device may be a 5th-Generation (5G) mobile communication system New Radio (NR) mobile terminal or other 5G NR terminal equipment, such as Customer Premise Equipment (CPE) or portable broadband wireless device (Mobile Wifi, MIFI).

[0060] The reasons for defining the modules (including receiver modules and transceiver modules) in the radio frequency system presented in this application embodiment are as follows: ① 5G NR requires downlink 4x4 MIMO or 4-channel diversity reception; ② TX SRS switching 4-antenna round-robin transmission; ③ transmit antenna switching function; ④ the sub-6GHz frequency band ranges from 3.3 to 4.2GHz and from 4.4 to 5GHz. This frequency band is higher than the LTE 600 to 2700MHz frequency band. Therefore, the radio frequency (RF) cable (coaxial cable) has greater loss from one side of the motherboard to the other, and from the motherboard to the sub-board (also known as the lower board).

[0061] To improve the performance of a radio frequency system, an important indicator is to increase system sensitivity. The system sensitivity formula is Ps = 10lg(KT) + 10lg(BW) + NF + SNR, where the parameters are defined as follows:

[0062] K: Boltzmann constant (1.38 × E⁻²³, unit: J / K)

[0063] T: Absolute temperature (273.15 units: K). The formula uses 20℃ as the ambient temperature, therefore T = 293.15.

[0064] NF: Noise figure

[0065] BW: Bandwidth

[0066] SNR: Minimum demodulation threshold, determined by the platform vendor's baseband algorithm.

[0067] In this formula, K and T are fixed constants, BW is determined by the test bandwidth, and SNR is determined by the system baseband algorithm.

[0068] The NF formula is as follows:

[0069]

[0070] Where NF1 = IL pre－1st LNA +NF 1st LNA Among them IL pre－1st LNA For the insertion loss before the first-stage LNA, NF 1st LNA This represents the noise figure for the first level. These two factors are the main contributors to the overall noise level (NF).

[0071] and The portion contributing to the noise figure of the subsequent stage, generally, G n >15, NF2~NF n <5, this part contributes relatively little to NF.

[0072] In summary, in RF front-end design, improving sensitivity requires reducing the overall NF value. NF1 is a major contributor to this reduction; in NF1, besides using an external LNA to decrease NF... 1st LNA In addition, how to reduce IL pre－1st LNA This has become a crucial improvement measure, namely, how to reduce the insertion loss before the first-stage LNA.

[0073] In this embodiment, a 5G NR radio frequency system is defined. By configuring a first external switching switch and a second external switching switch to establish a connection path, the first transceiver module can be configured to establish a connection path with the second antenna group through the first and second external switching switches, establish a connection path with the third antenna group through the second transceiver module and the first receiving module, and establish a connection path with the fourth antenna group through the second receiving module. The first transceiver module can be configured to achieve 1T4R SRS switching through the first antenna group, the second antenna group, the third antenna group, and the fourth antenna group. It is not necessary to establish an internal transceiver path between the first transceiver module and the second transceiver module to realize the 1T4R function of the radio frequency system. This can reduce the switching loss of the first transceiver module and the second transceiver module, and reduce the switching insertion loss of the transceiver module while supporting the 1T4R function, thereby improving the sensitivity of the transmit and receive channels.

[0074] Please see Figure 1A , Figure 1A This is a schematic diagram of the structure of a radio frequency system provided in an embodiment of this application, such as... Figure 1A As shown, the radio frequency system 100 includes a radio frequency transceiver 11, a radio frequency processing circuit 12, and a first antenna group 131, a second antenna group 132, a third antenna group 133, and a fourth antenna group 134. The radio frequency transceiver 11 is connected to the radio frequency processing circuit 12. Both the first antenna group 131 and the second antenna group 132 may include one antenna or two antennas. Figure 1A The second antenna in the diagram is shown as a dashed line. The third antenna group 133 and the fourth antenna group 134 can each include one or two antennas. Figure 1A The second antenna in the diagram is shown as a dashed line.

[0075] The radio frequency processing circuit 12 includes a first transceiver module 121, a second transceiver module 122, a first receiving module 123, and a second receiving module 124. The first transceiver module 121 is configured to establish a connection path with the first antenna group 131 through a first external switching switch 141. The second transceiver module 122 is configured to establish a connection path with the second antenna group 132 through a second external switching switch 142. The first receiving module 123 is configured to establish a connection path with the third antenna group 133. The second receiving module 124 is configured to establish a connection path with the fourth antenna group 134.

[0076] Specifically, the first external switch 141 is configured to establish a connection path with the second external switch 142, and the first transceiver module 121 is further configured to establish a connection path with the second antenna group through the first external switch 141 and the second external switch 142, establish a connection path with the third antenna group 133 through the second transceiver module 122 and the first receiving module 123, and establish a connection path with the fourth antenna group 134 through the second receiving module 124; the first transceiver module 121 is also configured to achieve 1T4R SRS switching through the first antenna group 131, the second antenna group 132, the third antenna group 133 and the fourth antenna group 134.

[0077] The 1T4R SRS switching, also known as 1T4R SRS round-robin / polling, refers to establishing connection paths between one transceiver module (first transceiver module 121) and four antenna groups. The first transceiver module 121 can then perform SRS round-robin transmissions between the four antenna groups via these four established paths. 1T4R SRS switching can also refer to the ability to transmit from one transceiver module to all four antenna groups. Specifically, the first transceiver module 121 can independently transmit SRS signals to the first antenna group 131, the second antenna group 132, the third antenna group 133, and the fourth antenna group 134 in a round-robin fashion. In 1T4R SRS switching, T stands for transmit, R stands for receive, and switching / round-robin / polling refers to the switching process.

[0078] Optionally, the second transceiver module 122 is further configured to establish a connection path with the third antenna group 133 through the first receiving module 123. The first transceiver module 121 is further configured to perform 1T2R SRS switching via the first antenna group 131 and the fourth antenna group 134. The second transceiver module 122 is further configured to perform 1T2R SRS switching via the second antenna group 132 and the third antenna group 133. The 1T2R SRS switching of the first transceiver module 121 and the 1T2R SRS switching of the second transceiver module 122 together form 2T4R SRS switching. Here, 2T4R SRS switching, also known as 2T4R SRS round-robin / polling, refers to the ability to switch from two transceiver modules to four antenna groups. That is, SRS signals can be transmitted in a polling manner between the first transceiver module 121 and the first antenna group 131 and the fourth antenna group 134, and SRS signals can be transmitted in a polling manner between the second transceiver module 122 and the second antenna group 132 and the third antenna group 133. Thus, SRS polling transmission can be achieved between the four antenna groups through two modules. In the 2T4R SRS switching, T refers to transmit, R refers to receive, and switching / polling / transmitting refers to switching.

[0079] This application embodiment can simultaneously support both 1T4R SRS switching and 2T4R SRS switching functions, meaning that the 2T4R SRS switching function is compatible with the 1T4R SRS switching function. The compatibility of the 2T4R SRS switching function with the 1T4R SRS switching function means that, given the support for the 2T4R SRS switching function, the 1T4R SRS switching function can also be supported.

[0080] The 1T4R SRS switching function requires one transceiver module to establish connection paths with all four antenna groups. Clearly, implementing the 1T4R SRS switching function is more difficult than implementing the 2T4R SRS switching function. For example, to implement the 2T4R SRS switching function, the first transceiver module 121 needs to establish direct or indirect (through other modules) connection paths with the first antenna group 131 and the fourth antenna group 134, and the second transceiver module 122 needs to establish direct or indirect (through other modules) connection paths with the second antenna group 132 and the third antenna group 133. Building upon the 2T4R SRS switching function, to support the 1T4R SRS switching function, the first transceiver module 121 also needs to establish connection paths with the second antenna group 132 and the third antenna group 133. To achieve 1T4R SRS switching functionality, the following design scheme has been proposed by those skilled in the art: connecting the first transceiver module 121 to the second transceiver module 122, and connecting the first transceiver module 121 to the first receiving module 123. By adding new transceiver paths in the switching switches of the second transceiver module 122 and the first receiving module 123, the connection between the first transceiver module 121 and the second antenna group 132 and the third antenna group 133 is achieved, thereby realizing the 1T4R SRS switching function. However, due to the complex internal structures of the first and second transceiver modules and the large number of internal switches, the above design scheme increases the switching losses of the first and second transceiver modules 121 and 122, thus affecting the sensitivity of the transmit and receive channels of the transceiver modules.

[0081] To achieve 1T4R SRS switching without affecting the sensitivity of the transmit and receive channels of the transceiver module, this application provides a new design scheme. The 1T4R SRS switching function of the RF system is achieved by using a first external switch 141 and a second external switch 142 located between the first antenna group 131 and the second antenna group 132. This eliminates the need to establish an internal transmit / receive path between the first transceiver module 121 and the second transceiver module 122, reducing switching losses between the first and second transceiver modules 121 and 122. Furthermore, it reduces insertion loss of the transceiver module while supporting 1T4R SRS switching, thereby improving the sensitivity of the transmit and receive channels.

[0082] Please see Figure 1B , Figure 1B This is a schematic diagram of the specific structure of a radio frequency system provided in an embodiment of this application. Figure 1B Is Figure 1A It was obtained through further optimization based on the existing model. For example... Figure 1BAs shown, in this radio frequency system, the first antenna group 131 and the second antenna group 132 each include one antenna, and the third antenna group 133 and the fourth antenna group 134 each include one antenna or two antennas. Figure 1B (Taking the third antenna group 133 and the fourth antenna group 134 as examples, each including two antennas). The radio frequency processing circuit 12 includes a first transceiver module 121, a second transceiver module 122, a first receiving module 123, and a second receiving module 124. The first transceiver module 121 is connected to the first antenna group 131 through a first external switch 141. The second transceiver module 122 is connected to the second antenna group 132 through a second external switch 142. One T port of the first external switch 141 is connected to one T port of the second external switch 142. The first receiving module 123 is connected to the third antenna group 133, and the second receiving module 124 is connected to the fourth antenna group 134. The first external switch 141 and the second external switch 142 are both SPDT switches.

[0083] Please see Figure 1C , Figure 1C This is a schematic diagram of the specific structure of another radio frequency system provided in the embodiments of this application. Figure 1C Is Figure 1A It was obtained through further optimization based on the existing model, such as Figure 1C As shown, in this radio frequency system, the first antenna group 131 and the second antenna group 132 each include two antennas, and the third antenna group 133 and the fourth antenna group 134 each include one antenna or two antennas. Figure 1C (Taking the third antenna group 133 and the fourth antenna group 134 as examples, each including two antennas). The radio frequency processing circuit 12 includes a first transceiver module 121, a second transceiver module 122, a first receiving module 123, and a second receiving module 124. The first transceiver module 121 is connected to the first antenna group 131 through a first external switch 141, and the second transceiver module 122 is connected to the second antenna group 132 through a second external switch 142. One T port of the first external switch 141 is connected to one T port of the second external switch 142. The first receiving module 123 is connected to the third antenna group 133, and the second receiving module 124 is connected to the fourth antenna group 134. Both the first external switch 141 and the second external switch 142 are DP3T switches.

[0084] When laying out the printed circuit board (PCB), the first transceiver module 121 of this RF system 100 can be placed near the first antenna group 131, the second transceiver module 122 can be placed near the second antenna group 132, the first receiver module 123 can be placed near the third antenna group 133, and the second receiver module 124 can be placed near the fourth antenna group 134. This reduces the insertion loss before the first-stage low noise amplifier (LNA) of the RF system 100 and improves the system sensitivity.

[0085] In this embodiment of the application, a connection path can be established between the first external switching switch 141 and the second external switching switch 141, so that the transmit / receive path between the target frequency band transmit / receive port (transmit port or receive port) of the RF transceiver 11 and the target antenna group (first antenna group 131, second antenna group 132, third antenna group 133 and fourth antenna group 134) is connected, and the RF system 100 can realize the 1T4R SRS switching function of one transmit and four receive through the antennas in the target antenna group.

[0086] In this embodiment of the application, the target frequency band may include any one of the 5G NR frequency bands such as N77 (3300-4200MHz), N78 (3300-3800MHz), N79 (4400-5000MHz), and N41 (2496-2690MHz). This embodiment of the application can support transmission and reception in two frequency bands (a first frequency band and a second frequency band). The first frequency band can be referred to as the Nx band, and the second frequency band as the Ny band. The frequency ranges of the first and second frequency bands do not overlap. For example, the first frequency band ranges from 3.3GHz to 3.8GHz (N78), and the second frequency band ranges from 4.4GHz to 5GHz (N79); or, the first frequency band ranges from 4.4GHz to 5GHz (N79), and the second frequency band ranges from 3.3GHz to 3.8GHz (N78); or, the first frequency band ranges from 3.3GHz to 4.2GHz (N77), and the second frequency band ranges from 4.4GHz to 5GHz (N79); or, the first frequency band ranges from 4.4GHz to 5GHz (N79), and the second frequency band ranges from 3.3GHz to 4.2GHz (N77). This is understandable. Figures 1A to 1C The radio frequency system 100 in the system can support transmission and reception in two frequency bands.

[0087] In this embodiment, the P port is called a Port (polarization) port, and the T port is called a Throw port. An SPDT switch can also be called a single-pole double-throw switch.

[0088] In one possible implementation, such as Figure 1B or Figure 1C As shown, the first receiving module 123 can establish a connection path with the second transceiver module 122, and the second receiving module 124 can establish a connection path with the first transceiver module 121. Specifically, the first transceiver module 121 can establish a connection path with the second transceiver module 122, or the first transceiver module 121 can establish a connection path with the first receiving module 123.

[0089] In another possible implementation, the first receiving module 123 can establish a connection path with the first transceiver module 121, the second receiving module 124 can establish a connection path with the second transceiver module 122, the first transceiver module 121 can establish a connection path with the second transceiver module 122, or the first transceiver module 121 can establish a connection path with the second receiving module 123.

[0090] The first transceiver module 121 can establish a connection path with the second antenna group 132 through the second transceiver module 122. The first transceiver module 121 can establish a connection path with the third antenna group 133 through the second transceiver module 122 and the first receiving module 123. The first transceiver module 121 can establish a connection path with the fourth antenna group 134 through the second receiving module 124. Thus, the first transceiver module 121 can perform SRS polling transmission among the four antenna groups, thereby realizing the 1T4RSRS switching function of the radio frequency system 100 with one-way transmission and four-way reception.

[0091] The second transceiver module 122 can establish a connection path with the second antenna group 132. The second transceiver module 122 can establish a connection path with the third antenna group 133 through the first receiving module 123. The first transceiver module 121 can establish a communication connection with the first antenna group 131. The first transceiver module 121 can establish a connection path with the fourth antenna group 134 through the first transceiver module 121 and the second receiving module 124. The first transceiver module 121 can realize the 1T2RS / RS switching function through the first antenna group 131 and the fourth antenna group 134. The second transceiver module 122 can realize the 1T2RS / SRS switching function through the second antenna group 132 and the third antenna group 133. The first transceiver module 121 can perform SRS polling transmission between the first antenna group 131 and the fourth antenna group 134, and the second transceiver module 122 can perform SRS polling transmission between the second antenna group 132 and the third antenna group 133. The 1T2R SRS switching of the first transceiver module 121 and the 1T2R SRS switching of the second transceiver module 122 together form a 2T4R SRS switching. This enables the first transceiver module 121 and the second transceiver module 122 to perform SRS polling transmission between the four antenna groups, realizing the two-way transmit and four-way receive 2T4R SRS switching function of the RF system 100. Ultimately, the 2T4R SRS switching function of the RF system 100 is compatible with the 1T4R SRS switching function.

[0092] Optionally, the first antenna group and the second antenna group each include one antenna or two antennas, and the third antenna group and the fourth antenna group each include one antenna or two antennas.

[0093] When both the first antenna group 131 and the second antenna group 132 include one antenna, the antennas in the first antenna group 131 and the second antenna group 132 are dual-band antennas, that is, the antennas in the first antenna group 131 and the second antenna group 132 can simultaneously support the transmission and reception of two frequency bands.

[0094] When both the first antenna group 131 and the second antenna group 132 include two antennas, the antennas in the first antenna group 131 and the second antenna group 132 are single-band antennas, that is, the two antennas in the first antenna group 131 and the second antenna group 132 each support the transmission and reception of one frequency band (for example, the first antenna of the first antenna group 131 supports the transmission and reception of the first frequency band, and the second antenna of the first antenna group 131 supports the transmission and reception of the second frequency band).

[0095] When both the third antenna group 133 and the fourth antenna group 134 include two antennas, the antennas in the third antenna group 133 and the fourth antenna group 134 are single-band antennas, that is, the two antennas in the third antenna group 133 and the fourth antenna group 134 each support the transmission and reception of one frequency band (for example, the first antenna of the third antenna group 133 supports the transmission and reception of the first frequency band, and the second antenna of the third antenna group 133 supports the transmission and reception of the second frequency band).

[0096] When both the third antenna group 133 and the fourth antenna group 134 include one antenna, the antennas in the third antenna group 133 and the fourth antenna group 134 are dual-band antennas, that is, the antennas in the third antenna group 133 and the fourth antenna group 134 can simultaneously support the transmission and reception of two frequency bands.

[0097] In this embodiment, when the first antenna group and the second antenna group each consist of only one antenna, the 1T4R SRS switching function of the RF system is achieved by using a first external switching switch and a second external switching switch located between the first antenna group and the second antenna group. This eliminates the need to establish an internal transmission path between the first transceiver module and the second transceiver module, thereby reducing the switching losses of the first and second transceiver modules. Furthermore, while supporting the 1T4R SRS switching function of the RF system, this also reduces the insertion loss of the transceiver modules and improves the sensitivity of the transmit and receive channels. In addition, due to the reduced switching losses of the first and second transceiver modules, they can support higher transmit power while maintaining the same transmit performance. Therefore, the RF system of this embodiment can be applied to High Power User Equipment (HPUE), thus enabling the RF system of this embodiment to support HPUE.

[0098] Each of the first receiving module 123 and the second receiving module 124 may include two signal receiving channels, a first built-in switch, and a second built-in switch. The two signal receiving channels are connected to a third or fourth antenna group via the first built-in switch, and the RF transceiver is connected to the two signal receiving channels via the second built-in switch. The first built-in switch includes a DP4T switch, and the second built-in switch includes a DP3T switch. Each signal receiving channel includes a filter and a low-noise amplifier (LNA), with the LNA connected to the filter.

[0099] Specifically, a built-in bypass channel is provided between the first built-in switch and the second built-in switch of the first receiving module 123. This built-in bypass channel is used to connect the first transceiver module 121 or the second transceiver module 122 to support the signal transmission function of the first receiving module. Specifically, the built-in bypass channel can be used for SRS transmission of the third antenna group.

[0100] Optionally, the first receiving module may further include an auxiliary port (AUX), which is connected to the first built-in switch. The auxiliary port is used to connect to the transceiver module to support the signal transmission function of the first receiving module. Since one switch is eliminated compared to an external bypass channel, insertion loss can be further reduced.

[0101] Optionally, the first receiving module may further include two AUXs, which are respectively connected to the first built-in switch and the second built-in switch, and an external bypass channel is set between the first built-in switch and the second built-in switch to support the signal transmission function of the first receiving module.

[0102] Optionally, the first receiving module may further include three auxiliary ports AUX, namely a first AUX, a second AUX, and a third AUX. The first AUX and the second AUX are connected to the first built-in switch, and the third AUX is connected to the second built-in switch. The first AUX or the second AUX is used to connect to the first transceiver module or the second transceiver module to support the signal transmission function of the first receiving module.

[0103] The first AUX and the third AUX, or the second AUX and the third AUX, are used to access an external bypass channel. The external bypass channel is used to connect the first transceiver module or the second transceiver module to support the signal transmission function of the first receiving module.

[0104] The first receiving module can also support signal transmission (e.g., SRS transmission). When the first receiving module is mounted on the main board of the electronic device, one AUX port of the first receiving module connected to the first built-in switch is used to connect to the transceiver module; or, when the first receiving module is mounted on the secondary board of the electronic device, the first AUX port is connected to the third AUX port, or the second AUX port is connected to the third AUX port. However, this is not used in the radio frequency system of this application and is a redundant function.

[0105] Similarly, the second receiving module may also include a similar structure and function to the first receiving module, which will not be elaborated here.

[0106] It is evident that this receiving module can reduce the NF of the receiving path and improve the receiving sensitivity.

[0107] In addition, the receiving module also includes the following features:

[0108] (1) Each receiving module is connected to one antenna group, and the position is close to the position of the antenna (feed point) it is connected to. The distance can be any length between 1mm and 25mm.

[0109] (2) This module may or may not have a shielding layer (if it does not have a shielding layer, a shielding cover must be built separately);

[0110] Furthermore, the first and second receiving modules also include a Mobile Industry Processor Interface (MIPI) and / or a General Purpose Input / Output (GPIO) control unit. The MIPI control unit and / or the GPIO control unit are used to control the connection status of devices in the first and second receiving modules. These devices include any one of the following: a first built-in switch and a second built-in switch. For example, the MIPI control unit and / or the GPIO control unit can control the connection and disconnection between the P port and T port of the first and second built-in switches.

[0111] The following provides a detailed description of the form of the receiving module (first receiving module or second receiving module) provided in the embodiments of this application. The receiving module may specifically include... Figure 2A , Figure 2B and Figure 2C Three forms.

[0112] like Figure 2A As shown, the receiving module includes two low-noise amplifiers (LNAs), two filters, two switches, one auxiliary port (AUX), and a built-in bypass channel. The first built-in switch is a DP4T switch, and the second built-in switch is a DP3T switch. The auxiliary port (AUX) is used to connect to either the first or second transceiver module. The second T port (T2) of the first built-in switch is connected to the first filter (F1), and the first filter (F1) is connected to the first LNA (e.g., ...). Figure 2A L1 in the first LNA (e.g., L1 in the first LNA) Figure 2A L1) is connected to the first T port T1 of the second built-in switch, and the third T port T3 of the first built-in switch is connected to the second filter F2. The second filter F2 is connected to the second LNA (such as...). Figure 2A L2 in the middle), the second LNA (such as ... Figure 2AThe L2 of the first built-in switch is connected to the second T port T2 of the second built-in switch, the first T port T1 of the first built-in switch is connected to the auxiliary port AUX, and the third T port T3 of the second built-in switch is connected to the fourth T port T4 of the first built-in switch to form the built-in bypass channel. The first P port P1 and the second P port P2 of the first built-in switch are used to connect to the antenna group corresponding to the receiving module. The first or second transceiver module can transmit signals through the built-in bypass channel. The receiving module includes four external ports: the first external port ① of the receiving module is connected to the first P port P1 of the second built-in switch, the second external port ② of the receiving module is connected to the second P port P2 of the second built-in switch, the third external port ③ of the receiving module is connected to the first P port P1 of the first built-in switch, and the fourth external port ④ of the receiving module is connected to the second P port P2 of the first built-in switch.

[0113] like Figure 2B As shown, the receiving module includes two low-noise amplifiers (LNAs), two filters, two switches, and three auxiliary ports (AUX). The first built-in switch of the two switches is a DP4T switch, and the second built-in switch is a DP3T switch. The second T port (T2) of the first built-in switch is connected to the first filter F1, and the first filter F1 is connected to the first LNA (e.g., ...). Figure 2B L1 in the first LNA (e.g., L1 in the first LNA) Figure 2B L1) is connected to the first T port T1 of the second built-in switch, the third T port T3 of the first built-in switch is connected to the second filter F2, and the second filter F2 is connected to the second LNA (such as...). Figure 2B L2 in the middle), the second LNA (such as ... Figure 2BThe L2 port of the first built-in switch is connected to the second T port T2 of the second built-in switch. The first T port T1 and the fourth T port T4 of the first built-in switch are connected to the first auxiliary port AUX1 and the second auxiliary port AUX2, respectively. The third T port T3 of the second built-in switch is connected to the third auxiliary port AUX3. The second auxiliary port AUX2 and the third auxiliary port AUX3 can be used to connect to an external bypass channel. The first auxiliary port AUX1 can be used to connect to the first transceiver module or the second transceiver module so that the receiving module supports signal transmission. The first P port P1 and the second P port P2 of the first built-in switch are used to connect to the antenna group corresponding to the receiving module. The first transceiver module or the second transceiver module can transmit signals through the external bypass channel. The receiving module includes four external ports. The first external port ① of the receiving module is connected to the first P port P1 of the second built-in switch. The second external port ② of the receiving module is connected to the second P port P2 of the second built-in switch. The third external port ③ of the receiving module is connected to the first P port P1 of the first built-in switch. The fourth external port ④ of the receiving module is connected to the second P port P2 of the first built-in switch.

[0114] like Figure 2C As shown, the receiving module includes two low-noise amplifiers (LNAs), two filters, two switches, and two auxiliary ports (AUX). The first built-in switch of the two switches is a DP4T switch, and the second built-in switch is a DP3T switch. The second T port (T2) of the first built-in switch is connected to the first filter F1, and the first filter F1 is connected to the first LNA (e.g., ...). Figure 2C L1 in the first LNA (e.g., L1 in the first LNA) Figure 2C L1) is connected to the first T port T1 of the second built-in switch, the third T port T3 of the first built-in switch is connected to the second filter F2, and the second filter F2 is connected to the second LNA (such as...). Figure 2C L2 in the middle), the second LNA (such as ... Figure 2CThe L2 port of the first built-in switch is connected to the second T port T2 of the second built-in switch. The fourth T port T4 of the first built-in switch is connected to the first auxiliary port AUX1. The third T port T3 of the second built-in switch is connected to the second auxiliary port AUX2. The first auxiliary port AUX1 and the second auxiliary port AUX2 are used to connect to an external bypass channel, which supports the signal transmission function of the receiving module. The first P port P1 and the second P port P2 of the first built-in switch are used to connect to the antenna group corresponding to the receiving module. Either the first or second transceiver module can transmit signals through the external bypass channel. The receiving module includes four external ports: the first external port ① of the receiving module is connected to the first P port P1 of the second built-in switch; the second external port ② of the receiving module is connected to the second P port P2 of the second built-in switch; the third external port ③ of the receiving module is connected to the first P port P1 of the first built-in switch; and the fourth external port ④ of the receiving module is connected to the second P port P2 of the first built-in switch.

[0115] As can be seen, in this embodiment of the application, since the receiving module can support the signal transmission function of the antenna through the built-in or external bypass channel, and the receiving module is set close to the antenna group connected to the corresponding local end, it is beneficial to improve the sensitivity of each channel.

[0116] The first transceiver module 121 and the second transceiver module 122 may each include two signal transceiver processing circuits, one power detection selection switch, and at least two channel selection switches. The two signal transceiver processing circuits are connected to the power detection selection switch and the first channel selection switch. The first channel selection switch is connected to the second channel selection switch. The power detection selection switch includes a 3PST switch, the first channel selection switch includes a DP3T switch, and the second channel selection switch includes a 3P3T switch or a 4P3T switch. The first channel selection switch is connected to the first external switching switch or the second external switching switch.

[0117] Among them, the channel selection switch can be a simplified connection, that is, a channel selection switch including one or more non-fully connected ports. The non-fully connected port refers to a port that is not connected to all the opposite ports. For example, in a 3P3T switch, the first T port can be fully connected to all three P ports, and each of the second and third T ports can be connected to only one P port.

[0118] As can be seen, in this example, because the transceiver module integrates signal transceiver processing circuits and includes a channel selection switch that simplifies connections, it can reduce the number of RF link switches, reduce link insertion loss, and improve the sensitivity of each channel.

[0119] Each signal transceiver processing circuit includes one PA, one LNA, one transceiver switching switch, one filter, and one power coupler. The PA and the LNA are connected to the transceiver switching switch, the transceiver switching switch is connected to the filter, the filter is connected to the power coupler, the power coupler is connected to a first channel selection switch and a power detection selection switch, and the transceiver switching switch includes an SPDT switch.

[0120] The input port of the PA in the signal transceiver processing circuit is used to connect to the signal transmitting port of the RF transceiver, the output port of the LNA in the signal transceiver processing circuit is used to connect to the signal receiving port of the RF transceiver, and the P port of the power detection selection switch is used to connect to the power detection PDET port of the RF transceiver.

[0121] Wherein, at least three ports of the first channel selection switch and the second channel selection switch are used as external ports of the transceiver module, one of which is used to connect the antenna of the antenna group, and the remaining external ports are used to connect the signal receiving ports of the receiving module and / or the RF transceiver and / or other transceiver modules.

[0122] The transceiver module further includes a Mobile Industry Processor Interface (MIPI) and / or a General Purpose Input / Output (GPIO) control unit. The MIPI control unit and / or the GPIO control unit are used to control the connection status of devices in the transceiver module. These devices include any one of the following: a transmit / receive switch, a channel selection switch, or a power detection selection switch. For example, the MIPI control unit and / or the GPIO control unit can control the connection and disconnection between the P port and T port of the aforementioned transmit / receive switch, channel selection switch, and power detection selection switch.

[0123] For the specific structure of the transceiver module (first transceiver module 121 or second transceiver module 122), please refer to [link / reference]. Figure 3A , Figure 3B and Figure 3C .

[0124] like Figure 3A As shown, the transceiver module includes two signal transceiver processing circuits (such as...). Figure 3AThe diagram shows a first signal transceiver processing circuit 1211 and a second signal transceiver processing circuit 1212, two channel selection switches (including a first channel selection switch: DP3T switch and a second channel selection switch: 3P3T switch), and one power detection selection switch (3PST switch). Each signal transceiver processing circuit includes one PA, one LNA, one transceiver switching switch (including an SPDT switch), one filter, and one power coupler. The first signal transceiver processing circuit 1211 includes a first PA (e.g., DP3T switch and 3P3T switch). Figure 3A PA1 in the middle), the first LNA (such as ... Figure 3A L1), first transmit / receive switching switch S1, first filter (such as ... Figure 3A The second signal transceiver processing circuit 1211 includes a second PA (such as F1 in the circuit), a first power coupler C1, and a second power coupler C1. Figure 3A PA1 in the middle), the second LNA (such as Figure 3A L2), second transmit / receive switch S2, second filter (such as ... Figure 3A The transceiver module may also include MIPI and / or GPIO control units to perform PA / LNA / power coupler / switch switching control.

[0125] Among them, the first PA (e.g.) Figure 3A PA1 in the middle) and the first LNA (such as Figure 3A L1 in the diagram is connected to the first transmit / receive switch S1, and the first transmit / receive switch S1 is connected to the first filter (e.g., ...). Figure 3A In F1), the first filter (such as F1), Figure 3A F1 in the diagram is connected to the first power coupler C1, and the second PA (e.g., F1) is connected to the first power coupler C1. Figure 3A PA2 in the middle) and the second LNA (such as Figure 3A L2) is connected to the second transmit / receive switch S2, and the second transmit / receive switch S2 is connected to the second filter (e.g., Figure 3A In F2), the second filter (such as F2), Figure 3A F2 in the first power coupler is connected to the second power coupler C2. The first power coupler C1 and the second power coupler C2 are respectively connected to one P port of the power detection selection switch 3PST (the remaining P port of the power detection selection is used as an external port of the transceiver module, which is used to switch the power coupler path of other transceiver modules to a power coupling path output). The first power coupler C1 and the second power coupler C2 are also respectively connected to the P port of the first channel selection switch DP3T and the P port of the second channel selection switch 3P3T.

[0126] First PA (e.g.) Figure 3A The input port of PA1 in the diagram corresponds to the first external port ① of the transceiver module, and the first LNA (such as...) Figure 3A The output port of L1 in the diagram corresponds to the second external port ② of the transceiver module, and the second PA (such as...) Figure 3A The input port of PA2 in the diagram corresponds to the third external port ③ of the transceiver module, and the second LNA (such as...) Figure 3A The output port of L2 in the transceiver module corresponds to the fourth external port ④ of the transceiver module; the first T port T1 of the first channel selection switch DP3T corresponds to the fifth external port ⑤ of the transceiver module; the second T port T2 of the first channel selection switch DP3T corresponds to the sixth external port ⑥ of the transceiver module; the third T port T3 of the first channel selection switch DP3T is connected to the first P port P1 of the second channel selection switch 3P3T; the first T port T1 of the second channel selection switch 3P3T corresponds to the seventh external port ⑦ of the transceiver module; the second T port T2 of the second channel selection switch 3P3T corresponds to the eighth external port ⑧ of the transceiver module; the third T port T3 of the second channel selection switch 3P3T corresponds to the ninth external port ⑨ of the transceiver module; the T port T1 of the power detection selection switch 3PST corresponds to the tenth external port ⑩ of the transceiver module; and the remaining P ports of the power detection selection switch 3PST (P ports not connected to the first power coupler C1 and the second power coupler C2) correspond to the eleventh external port of the transceiver module. The second P port P2 and the third P port P3 of the second channel selector switch 3P3T correspond to the twelfth external port of the transceiver module, respectively. Thirteen external ports

[0127] Among them, the first external port ① and the third external port ③ are used to connect to the signal transmitting port of the RF transceiver; the fifth external port ⑤ is used to connect to the antenna of the corresponding antenna group; the seventh external port ⑦, the eighth external port ⑧, and the ninth external port ⑨ are used to connect to the receiving module or to connect the receiving module and the transceiver module; the tenth external port ⑩ is used to connect to the power detection PDET port of the RF transceiver; and the eleventh external port... Power detection channels that can be used to connect to other modules for power detection; second external port ②, fourth external port ④, and thirteenth external port. These are the signal receiving ports for connecting to the RF transceiver. When the fifth external port ⑤ is used to connect one antenna of the corresponding antenna group, the sixth external port ⑥ can be used to connect other transceiver modules or receiving modules; when the fifth external port ⑤ is used to connect two antennas of the corresponding antenna group, the sixth external port ⑥ is used to connect the antennas of the corresponding antenna group. (Twelve external ports) It can be used to connect to other transceiver modules or receiver modules.

[0128] like Figure 3B As shown, the transceiver module includes two signal transceiver processing circuits (such as...). Figure 3BThe diagram shows a first signal transceiver processing circuit 1211 and a second signal transceiver processing circuit 1212, two channel selection switches (including a first channel selection switch: DP3T switch and a second channel selection switch: 4P3T switch), and one power detection selection switch (3PST switch). Each signal transceiver processing circuit includes one PA, one LNA, one transceiver switching switch (including an SPDT switch), one filter, and one power coupler. The first signal transceiver processing circuit 1211 includes a first PA (e.g., DP3T switch and 4P3T switch). Figure 3B PA1 in the middle), the first LNA (such as ... Figure 3B L1), first transmit / receive switching switch S1, first filter (such as ... Figure 3B The second signal transceiver processing circuit 1211 includes a second PA (such as F1 in the circuit), a first power coupler C1, and a second power coupler C1. Figure 3B PA1 in the middle), the second LNA (such as Figure 3B L2), second transmit / receive switch S2, second filter (such as ... Figure 3B The transceiver module may also include MIPI and / or GPIO control units to perform PA / LNA / power coupler / switch switching control.

[0129] Among them, the first PA (e.g.) Figure 3B PA1 in the middle) and the first LNA (such as Figure 3B L1 in the diagram is connected to the first transmit / receive switch S1, and the first transmit / receive switch S1 is connected to the first filter (e.g., ...). Figure 3B In F1), the first filter (such as F1), Figure 3B F1 in the diagram is connected to the first power coupler C1, and the second PA (e.g., F1) is connected to the first power coupler C1. Figure 3B PA2 in the middle) and the second LNA (such as Figure 3B L2) is connected to the second transmit / receive switch S2, and the second transmit / receive switch S2 is connected to the second filter (e.g., Figure 3B In F2), the second filter (such as F2), Figure 3B F2 in the first power coupler is connected to the second power coupler C2. The first power coupler C1 and the second power coupler C2 are respectively connected to one P port of the power detection selection switch 3PST (the remaining P port of the power detection selection switch is used as an external port of the transceiver module, which is used to switch the power coupler path of other transceiver modules to a power coupling path output). The first power coupler C1 and the second power coupler C2 are also respectively connected to the first channel selection switch, including the DP3T switch and the second channel selection switch 4P3T switch.

[0130] First PA (e.g.) Figure 3B The input port of PA1 in the diagram corresponds to the first external port ① of the transceiver module, and the first LNA (such as...) Figure 3B The output port of L1 in the diagram corresponds to the second external port ② of the transceiver module, and the second PA (such as...) Figure 3B The input port of PA2 in the diagram corresponds to the third external port ③ of the transceiver module, and the second LNA (such as...) Figure 3B The output port of L2 in the transceiver module corresponds to the fourth external port ④ of the transceiver module; the first T port T1 of the first channel selection switch DP3T corresponds to the fifth external port ⑤ of the transceiver module; the second T port T2 of the first channel selection switch DP3T corresponds to the sixth external port ⑥ of the transceiver module; the third T port T3 of the first channel selection switch DP3T is connected to the first P port P1 of the second channel selection switch 4P3T; the first T port T1 of the second channel selection switch 4P3T corresponds to the seventh external port ⑦ of the transceiver module; the second T port T2 of the second channel selection switch 4P3T corresponds to the eighth external port ⑧ of the transceiver module; the third T port T3 of the second channel selection switch 4P3T corresponds to the ninth external port ⑨ of the transceiver module; the T port T1 of the power detection selection switch 3PST corresponds to the tenth external port ⑩ of the transceiver module; and the remaining P ports of the power detection selection switch 3PST (P ports not connected to the first power coupler C1 and the second power coupler C2) correspond to the eleventh external port of the transceiver module. The second P port (P2), third P port (P3), and fourth P port (P4) of the second channel selector switch 4P3T correspond to the twelfth external port of the transceiver module, respectively. Thirteen external ports Fourteen external ports

[0131] Among them, the first external port ① and the third external port ③ are used to connect to the signal transmitting port of the RF transceiver; the fifth external port ⑤ is used to connect to the antenna of the corresponding antenna group; the seventh external port ⑦, the eighth external port ⑧, and the ninth external port ⑨ are used to connect to the receiving module or to connect the receiving module and the transceiver module; the tenth external port ⑩ is used to connect to the power detection PDET port of the RF transceiver; and the eleventh external port... Power detection channels that can be used to connect to other modules for power detection, including the second external port ②, the fourth external port ④, and the twelfth external port. These are the signal receiving ports and the thirteenth external port used to connect to the RF transceiver. Fourteen external ports These are used to connect to other transceiver modules. When the fifth external port ⑤ is used to connect to one antenna of the corresponding antenna group, the sixth external port ⑥ can be used to connect to other transceiver modules or receiver modules; when the fifth external port ⑤ is used to connect to two antennas of the corresponding antenna group, the sixth external port ⑥ is used to connect to the antenna of the corresponding antenna group.

[0132] like Figure 3CAs shown, the transceiver module includes two signal transceiver processing circuits (such as...). Figure 3C The diagram shows a first signal transceiver processing circuit 1211 and a second signal transceiver processing circuit 1212, three channel selection switches (including a first channel selection switch: a 3P3T switch, a second channel selection switch: an SP3T switch, and a third channel selection switch: an SP4T switch), and a power detection selection switch (a 3PST switch). Each signal transceiver processing circuit includes a power amplifier (PA), an LNA, a transceiver switching switch (including an SPDT switch), a filter, and a power coupler. The first signal transceiver processing circuit 1211 includes a first PA (e.g., ... Figure 3C PA1 in the middle), the first LNA (such as ... Figure 3C L1), first transmit / receive switching switch S1, first filter (such as ... Figure 3C The second signal transceiver processing circuit 1211 includes a second PA (such as F1 in the circuit), a first power coupler C1, and a second power coupler C1. Figure 3C PA1 in the middle), the second LNA (such as Figure 3C L2), second transmit / receive switch S2, second filter (such as ... Figure 3C The transceiver module may also include MIPI and / or GPIO control units to perform PA / LNA / power coupler / switch switching control.

[0133] Among them, the first PA (e.g.) Figure 3C PA1 in the middle) and the first LNA (such as Figure 3C L1 in the diagram is connected to the first transmit / receive switch S1, and the first transmit / receive switch S1 is connected to the first filter (e.g., ...). Figure 3C In F1), the first filter (such as F1), Figure 3C F1 in the diagram is connected to the first power coupler C1, and the second PA (e.g., F1) is connected to the first power coupler C1. Figure 3C PA2 in the middle) and the second LNA (such as Figure 3C L2) is connected to the second transmit / receive switch S2, and the second transmit / receive switch S2 is connected to the second filter (e.g., Figure 3C In F2), the second filter (such as F2), Figure 3CF2 in the first power coupler is connected to the second power coupler C2. The first power coupler C1 and the second power coupler C2 are respectively connected to one P port of the power detection selection switch 3PST (the remaining P port of the power detection selection switch is used as an external port of the transceiver module, which is used to switch the power coupler path of other transceiver modules to a power coupling path output). The first power coupler C1 and the second power coupler C2 are also respectively connected to the P port of the first channel selection switch 3P3T, the P port of the second channel selection switch SP3T, and the P port of the third channel selection switch SP4T. The first channel selection switch 3P3T is connected to the second channel selection switch SP3T and the third channel selection switch SP4T.

[0134] First PA (e.g.) Figure 3C The input port of PA1 in the diagram corresponds to the first external port ① of the transceiver module, and the first LNA (such as...) Figure 3C The output port of L1 in the diagram corresponds to the second external port ② of the transceiver module, and the second PA (such as...) Figure 3C The input port of PA2 in the diagram corresponds to the third external port ③ of the transceiver module, and the second LNA (such as...) Figure 3C The output port of L2 in the transceiver module corresponds to the fourth external port ④ of the transceiver module; the first T port of the first channel selection switch 3P3T corresponds to the fifth external port ⑤ of the transceiver module; the second T port T2 of the first channel selection switch 3P3T corresponds to the sixth external port ⑥ of the transceiver module; the first T port T1 of the second channel selection switch SP3T corresponds to the seventh external port ⑦ of the transceiver module; the second T port T2 of the second channel selection switch SP3T corresponds to the eighth external port ⑧ of the transceiver module; the third T port T3 of the second channel selection switch SP3T corresponds to the ninth external port ⑨ of the transceiver module; the T port T1 of the power detection selection switch 3PST corresponds to the tenth external port ⑩ of the transceiver module; and the remaining P port of the power detection selection switch 3PST (the P port not connected to the first power coupler C1 and the second power coupler C2) corresponds to the eleventh external port of the transceiver module. The first T port T1, the second T port T2, the third T port T3, and the fourth T port T4 of the third channel selection switch SP4T correspond to the twelfth external port of the transceiver module, respectively. Thirteen external ports Fourteen external ports and 15 external ports

[0135] Among them, the first external port ① and the third external port ③ are used to connect to the signal transmitting port of the RF transceiver; the fifth external port ⑤ is used to connect to the antenna of the corresponding antenna group; the seventh external port ⑦ is used to connect to other transceiver modules; the eighth external port ⑧ is used to connect to other transceiver modules; the ninth external port ⑨ is used to connect to the receiving module or other transceiver modules; the tenth external port ⑩ is used to connect to the power detection PDET port of the RF transceiver; and the eleventh external port... Power detection channels that can be used to connect to other modules for power detection, including the second external port ②, the fourth external port ④, and the twelfth external port. These are the signal receiving ports for connecting to the RF transceiver. When the fifth external port ⑤ is used to connect one antenna of the corresponding antenna group, the sixth external port ⑥ can be used to connect other transceiver modules or receiving modules; when the fifth external port ⑤ is used to connect two antennas of the corresponding antenna group, the sixth external port ⑥ is used to connect the antennas of the corresponding antenna group. Thirteenth external port. Fourteenth external port Fifteenth external port It can be used to connect to other transceiver modules or receiver modules.

[0136] In one possible example, the radio frequency system supports simultaneous reception of two frequency bands and four downlink antennas.

[0137] In one possible example, the radio frequency system supports dual-transmit mode.

[0138] In one possible example, the radio frequency system supports single-transmit mode.

[0139] In one possible example, the radio frequency system is applied to an electronic device, which includes a motherboard, a battery, and a sub-board. The motherboard and the sub-board are located on opposite sides of the battery, respectively. The first transceiver module and the second transceiver module are disposed on the motherboard, and the first receiver module and the second receiver module are disposed on the sub-board.

[0140] Specifically, the main board can be located on the upper side of the battery, and the sub-board can be located on the lower side of the battery.

[0141] In one possible example, the first transceiver module, the second transceiver module, and the first receiving module are disposed on the motherboard, and the second receiving module is disposed on the sub-board.

[0142] In one possible example, both the first transceiver module and the second transceiver module include two signal transceiver processing circuits, one power detection selection switch, and two channel selection switches. The two signal transceiver processing circuits are connected to the power detection selection switch and the first channel selection switch. The first channel selection switch is connected to the second channel selection switch. The power detection selection switch includes a 3PST switch, the first channel selection switch includes a DP3T switch, and the second channel selection switch includes a 3P3T switch or a 4P3T switch. The first channel selection switch is connected to the first external switching switch or the second external switching switch.

[0143] Both the first receiving module and the second receiving module include two signal receiving channels, a first built-in switch, and a second built-in switch. The two signal receiving channels are connected to the third antenna group or the fourth antenna group through the first built-in switch. The RF transceiver is connected to the two signal receiving channels through the second built-in switch. The first built-in switch includes a DP4T switch, and the second built-in switch includes a DP3T switch. Each signal receiving channel includes a filter and a low-noise amplifier (LNA), and the LNA is connected to the filter.

[0144] In one possible example, a built-in bypass channel is further provided between the first built-in switch and the second built-in switch of the first receiving module. The built-in bypass channel is used to connect the first transceiver module or the second transceiver module to support the signal transmission function of the first receiving module; and / or, the first receiving module further includes an auxiliary port AUX, which is connected to a T port of the first built-in switch. The AUX is used to connect the transceiver module to support the signal transmission function of the receiving module.

[0145] In one possible example, the first receiving module further includes two AUXs, which are respectively connected to the first built-in switch and the second built-in switch, and an external bypass channel is set between the first built-in switch and the second built-in switch to support the signal transmission function of the first receiving module.

[0146] In one possible example, the first receiving module further includes three AUXs, wherein the first AUX and the second AUX are connected to the first built-in switch, and the third AUX is connected to the second built-in switch. An external bypass circuit is configured between the first AUX and the third AUX or between the second AUX and the third AUX to support the signal transmission function of the first receiving module. Alternatively, the first AUX or the second AUX is configured to connect to the first transceiver module or the second transceiver module to support the signal transmission function of the first receiving module.

[0147] Wherein, when both the first antenna group and the second antenna group include one antenna, the first external switching switch includes a first SPDT switch and the second external switching switch includes a second SPDT switch; when both the first antenna group and the second antenna group include two antennas, the first external switching switch includes a first DP3T switch and the second external switching switch includes a second DP3T switch.

[0148] The following is combined Figure 4A , Figure 4B , Figure 4C , Figure 4D , Figure 4E , Figure 4F , Figure 4G , Figure 4H , Figure 4I , Figure 4J , Figure 4K , Figure 4L , Figure 4M , Figure 4N , Figure 4O , Figure 4P , Figure 4Q , Figure 4R , Figure 4S , Figure 4T , Figure 4U , Figure 4V , Figure 4W , Figure 4X The radio frequency system provided in the embodiments of this application will be described in detail.

[0149] Figures 4A to 4D The RF system supports the following functions: ① 5G NR dual-band; ② does not support DL CA; ③ supports 4-antenna SRS polling transmission; ④ supports NR 2T4R (single-band 2-channel transmit 4-channel receive) compatible with NR 1T4R (single-band 1-channel transmit 4-channel receive); ⑤ supports HPUE. The 5G RF system includes an RF transceiver, an RF processing circuit, and a first antenna group, a second antenna group, a third antenna group, and a fourth antenna group. The RF transceiver is connected to the RF processing circuit. The first and second antenna groups each include one antenna, and the third and fourth antenna groups each include one or two antennas.

[0150] Please see Figure 4A , Figure 4A This is a schematic diagram of the specific structure of a radio frequency system provided in an embodiment of this application. For example... Figure 4A As shown, both the third antenna group 133 and the fourth antenna group 124 include two antennas. The radio frequency processing circuit 12 includes a first transceiver module 121, a second transceiver module 122, a first receiving module 123, and a second receiving module 124. The first transceiver module 121 is connected to the first antenna group 131 through a first SPDT switch 141, and the second transceiver module 122 is connected to the second antenna group 132 through a second SPDT switch 142. One T port of the first SPDT switch 141 is connected to one T port of the second SPDT switch 142. The first receiving module 123 is connected to the third antenna group 133, and the second receiving module 124 is connected to the fourth antenna group 134.

[0151] The first transceiver module 121 and the second transceiver module 122 are mounted on the main board, while the first receiving module 123 and the second receiving module 124 are mounted on the sub-board. The main board and the sub-board are spatially separated, and the components on the main board and the components on the sub-board need to be connected via coaxial cables.

[0152] The first transceiver module 121 is positioned near the first antenna group 131, the second transceiver module 122 is positioned near the second antenna group 132, the first receiving module 123 is positioned near the third antenna group 133, and the second receiving module 124 is positioned near the fourth antenna group 134.

[0153] in, Figure 4A The internal component structure and connection relationship of the transceiver module are as follows: Figure 3A As shown in the transceiver module diagram, the internal components and connections of the receiver module are as follows: Figure 2B The receiving module is shown in the diagram, and will not be described in detail here.

[0154] The first transmit port Nx TX1 of the first frequency band of the RF transceiver 11 is connected to the first external port ① of the first transceiver module 121; the second transmit port Nx TX2 of the first frequency band is connected to the first external port ① of the second transceiver module 122; the first transmit port Ny TX1 of the second frequency band is connected to the third external port ③ of the first transceiver module 121; the second transmit port Ny TX2 of the second frequency band is connected to the third external port ③ of the second transceiver module 122; the first receive port Nx RX1 of the first frequency band of the RF transceiver 11 is connected to the second external port ② of the first transceiver module 121; the first receive port Ny RX1 of the second frequency band of the RF transceiver 11 is connected to the fourth external port ④ of the first transceiver module 121; the second receive port Nx RX2 of the first frequency band of the RF transceiver 11 is connected to the second external port ② of the second transceiver module 122; the second receive port Ny RX2 of the second frequency band is connected to the fourth external port ④ of the second transceiver module 122; the third receive port Nx TX1 of the first frequency band is connected to the fourth external port ④ of the second transceiver module 122; the third receive port Nx TX1 of the first frequency band is connected to the fourth external port ④ of the second transceiver module 122; the second receive port Nx TX1 of the second frequency band is connected to the fourth external port ④ of the second transceiver module 122; the second receive port Nx TX1 of the first ... RX3, the third receiving port of the second frequency band, is connected to the twelfth external port of the second transceiver module 122 via the third SPDT switch 143. The fourth receiving port Nx RX4 of the first frequency band and the fourth receiving port Ny RX4 of the second frequency band of the RF transceiver 11 are connected to the thirteenth external port of the first transceiver module 121 via the fourth SPDT switch 144. The PDET1 port of RF transceiver 11 is connected to the tenth external port ⑩ of the first transceiver module 121, and the PDET2 port of RF transceiver 11 is connected to the tenth external port ⑩ of the second transceiver module 122. The eighth external port ⑧ of the first transceiver module 11 is connected to the thirteenth external port of the second transceiver module 122. The fifth external port ⑤ of the first transceiver module 121 is connected to the P port P1 of the first SPDT switch 141. The first T port T1 of the first SPDT switch 141 is connected to the antenna of the first antenna group 131. The second T port T2 of the first SPDT switch 141 is connected to the second T port T2 of the second SPDT switch 142. The fifth external port ⑤ of the second transceiver module 122 is connected to the first T port T1 of the second SPDT switch 142. The P port P1 of the second SPDT switch 142 is connected to the antenna of the second antenna group 132.

[0155] Among them, the seventh external port ⑦ of the first transceiver module 121 is connected to the coaxial cable 151 (e.g., Figure 4A The thick line in the diagram connects to the first external port ① of the second receiving module 124, and the seventh external port ⑦ of the second transceiver module 122 is connected to the first external port ① of the first receiving module 123 via the coaxial cable 152.

[0156] The radio frequency system 100 is used to control the transmission and reception path between the target frequency band transmission and reception port (transmit port or receive port) of the radio frequency transceiver 11 and the target antenna group through the first SPDT switch 141 and the second SPDT switch 142, and transmit and receive signals through the antenna in the target antenna group, so as to realize the two-way transmit and four-way receive 2T4R SRS switching function of the radio frequency system 100 and the one-way transmit and four-way receive 1T4R SRS switching function.

[0157] In specific implementation, the RF system 100 performs SRS 4-antenna round-robin transmission or autonomous transmission switching in a single frequency band (taking Nx frequency band as an example) (suitable for scenarios where the user holds the antenna or the antenna is blocked, affecting the antenna's uplink transmission):

[0158] The following is combined Figure 2B , Figure 3A and Figure 4AAnalysis is performed. In the first transmission cycle, the radio frequency system 100 controls the first channel selection switch DP3T of the first transceiver module 121 to connect the first P port P1 to the first T port T1, and controls the first SPDT switch 141 to connect the P port P1 to the first T port T1 and the second T port T2. The first T port T1 of the first SPDT switch 141 is connected to the antenna of the first antenna group 131, and the first transceiver module 121 transmits the Nx band signal through the first antenna group 131. Simultaneously, the radio frequency system 100 controls the first P port P1 of the first channel selection switch DP3T of the first transceiver module 121 to connect with the third T port T3, and controls the first P port P1 of the second channel selection switch 3P3T of the first transceiver module 121 to connect with the first T port T1 and the second T port T2 of the second channel selection switch 3P3T. Since the first T port T1 of the second channel selection switch 3P3T of the first transceiver module 121 is the seventh external port ⑦ of the first transceiver module 121, the seventh external port ⑦ of the first transceiver module 121 can be connected to the fourth antenna group 134 through the second receiving module 124, thereby enabling the first transceiver module 121 to transmit Nx band signals through the fourth antenna group 134. Simultaneously, the RF system 100 controls the second T port T2 of the second SPDT switch 142 to connect with the P port P1 of the second SPDT switch 142, and controls the first T port T1 of the second SPDT switch 142 to disconnect from the P port P1 of the second SPDT switch 142. Since the P port P1 of the second SPDT switch 142 is connected to the second antenna group 132, the first transceiver module 121 transmits Nx band signals through the second antenna group 132. At the same time, the RF system 100 controls the third P port P3 of the second channel selection switch 3P3T of the second transceiver module 122 to connect with the first T port T1 of the second channel selection switch 3P3T. Since the third P port P3 of the second channel selection switch 3P3T is the thirteenth external port of the second transceiver module 122... The thirteenth external port of the second transceiver module 122 The first transceiver module 122 is connected to the eighth external port ⑧ of the first transceiver module 121. The eighth external port ⑧ of the first transceiver module 121 is the second T port T2 of the second channel selection switch 3P3T of the first transceiver module 121. The first T port T1 of the second channel selection switch 3P3T of the second transceiver module 122 is the seventh external port ⑦ of the second transceiver module 122. The seventh external port ⑦ of the second transceiver module 122 can be connected to the third antenna group 133 through the first receiving module 123, thereby enabling the first transceiver module 121 to transmit Nx band signals through the third antenna group 133.

[0159] During the second transmission cycle, the radio frequency system 100 controls the first channel selection switch DP3T of the first transceiver module 121 to connect the second P port P2 to the first T port T1, and controls the P port P1 of the first SPDT switch 141 to connect the first T port T1 and the second T port T2 of the first SPDT switch 141. The first T port T1 of the first SPDT switch 141 is connected to the antenna of the first antenna group 131, and the first transceiver module 121 transmits the Ny band signal through the first antenna group 131. Simultaneously, the radio frequency system 100 controls the first channel selection switch DP3T of the first transceiver module 121 to connect the second P port P2 and the third T port T3, and controls the first P port P1 of the second channel selection switch 3P3T of the first transceiver module 121 to connect the first T port T1 and the second T port T2. Since the first T port T1 of the second channel selection switch 3P3T of the first transceiver module 121 is the seventh external port ⑦ of the first transceiver module 121, the seventh external port ⑦ of the first transceiver module 121 can be connected to the fourth antenna group 134 through the second receiving module 124, thereby enabling the first transceiver module 121 to transmit signals in the Ny band through the fourth antenna group 134. Simultaneously, the RF system 100 controls the second T port T2 of the second SPDT switch 142 to connect with the P port P1 of the second SPDT switch 142, and controls the first T port T1 of the second SPDT switch 142 to disconnect from the P port P1 of the second SPDT switch 142. Since the P port P1 of the second SPDT switch 142 is connected to the second antenna group 132, the first transceiver module 121 transmits signals in the Ny band through the second antenna group 132. At the same time, the RF system 100 controls the third P port P3 of the second channel selection switch 3P3T of the second transceiver module 122 to connect with the first T port T1 of the second channel selection switch 3P3T. Since the third P port P3 of the second channel selection switch 3P3T is the thirteenth external port of the second transceiver module 122... The thirteenth external port of the second transceiver module 122 The first transceiver module 122 is connected to the eighth external port ⑧ of the first transceiver module 121. The eighth external port ⑧ of the first transceiver module 121 is the second T port T2 of the second channel selection switch 3P3T of the first transceiver module 121. The first T port T1 of the second channel selection switch 3P3T of the second transceiver module 122 is the seventh external port ⑦ of the second transceiver module 122. The seventh external port ⑦ of the second transceiver module 122 can be connected to the third antenna group 133 through the first receiving module 123, thereby enabling the first transceiver module 121 to transmit Ny band signals through the third antenna group 133.

[0160] As can be seen, during the first transmission cycle, the first transceiver module 121 can transmit Nx band signals (e.g., Nx band SRS signals) through the first antenna group 131, the second antenna group 132, the third antenna group 133, and the fourth antenna group 134. During the second transmission cycle, the first transceiver module 121 can transmit Ny band signals (e.g., Ny band SRS signals) through the first antenna group 131, the second antenna group 132, the third antenna group 133, and the fourth antenna group 134. This embodiment of the application can realize a 1T4R SRS switching function for one-way transmission and four-way reception in the RF system. While supporting the first transceiver module 121's SRS polling transmission across four antenna groups, it reduces the switching insertion loss of the transceiver module and improves the sensitivity of the transmission and reception channels. Because the switching losses of the first transceiver module 121 and the second transceiver module 122 are reduced, they can support higher transmission power while maintaining the same transmission performance, thus enabling the RF system of this application to be used in HPUE.

[0161] from Figure 4A As can be seen, during the first transmission cycle, the first transceiver module 121 can transmit Nx band signals (e.g., Nx band SRS signals) through the first antenna group 131 and the fourth antenna group 134, and the second transceiver module 121 can transmit Nx band signals (e.g., Nx band SRS signals) through the second antenna group 132 and the third antenna group 133. During the second transmission cycle, the first transceiver module 121 can transmit Ny band signals (e.g., Ny band SRS signals) through the first antenna group 131 and the fourth antenna group 134, and the second transceiver module 121 can transmit Ny band signals (e.g., Ny band SRS signals) through the second antenna group 132 and the third antenna group 133. The first transceiver module 121 can achieve one-way transmit and two-way receive 1T2R SRS switching function through the first antenna group 131 and the fourth antenna group 134. The second transceiver module 122 can achieve one-way transmit and two-way receive 1T2R SRS switching function through the second antenna group 132 and the third antenna group 133. The first transceiver module 121 and the second transceiver module 122 can together achieve two-way transmit and four-way receive 2T4R SRS switching function.

[0162] The embodiments of this application can realize the 2T4R SRS switching function of two-channel transmit and four-channel receive in the radio frequency system, and be compatible with the 1T4R SRS switching function of one-channel transmit and four-channel receive.

[0163] As can be seen, this RF system is compatible with 1T4R SRS transmit polling, that is, it supports the ability to transmit from the first transceiver module to all four antenna groups.

[0164] Please see Figure 4B , Figure 4BThis is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application. For example... Figure 4B As shown, both the third antenna group 133 and the fourth antenna group 134 include two antennas. The radio frequency processing circuit 12 includes a first transceiver module 121, a second transceiver module 122, a first receiving module 123, and a second receiving module 124. The first transceiver module 121 is connected to the first antenna group 131 through a first SPDT switch 141, and the second transceiver module 122 is connected to the second antenna group 132 through a second SPDT switch 142. One T port of the first SPDT switch 141 is connected to one T port of the second SPDT switch 142. The first receiving module 123 is connected to the third antenna group 133, and the second receiving module 124 is connected to the fourth antenna group 134.

[0165] The first transceiver module 121, the second transceiver module 122, and the first receiving module 123 are mounted on the main board, while the second receiving module 124 is mounted on the sub-board. The main board and the sub-board are spatially separated, and the components on the main board and the components on the sub-board need to be connected via coaxial cables.

[0166] The first transceiver module 121 is positioned near the first antenna group 131, the second transceiver module 122 is positioned near the second antenna group 132, the first receiving module 123 is positioned near the third antenna group 133, and the second receiving module 124 is positioned near the fourth antenna group 134.

[0167] in, Figure 4B The internal component structure and connection relationship of the transceiver module are as follows: Figure 3A As shown in the transceiver module diagram, the internal components and connections of the receiver module are as follows: Figure 2B The receiving module is shown below, and will not be described in detail here.

[0168] The first transmit port Nx TX1 of the first frequency band of the RF transceiver 11 is connected to the first external port ① of the first transceiver module 121; the second transmit port Nx TX2 of the first frequency band is connected to the first external port ① of the second transceiver module 122; the first transmit port Ny TX1 of the second frequency band is connected to the third external port ③ of the first transceiver module 121; the second transmit port Ny TX2 of the second frequency band is connected to the third external port ③ of the second transceiver module 122; the first receive port Nx RX1 of the first frequency band of the RF transceiver 11 is connected to the second external port ② of the first transceiver module 121; the first receive port Ny RX1 of the second frequency band of the RF transceiver 11 is connected to the fourth external port ④ of the first transceiver module 121; the second receive port Nx RX2 of the first frequency band of the RF transceiver 11 is connected to the second external port ② of the second transceiver module 122; the second receive port Ny RX2 of the second frequency band is connected to the fourth external port ④ of the second transceiver module 122; the third receive port Nx TX1 of the first frequency band is connected to the fourth external port ④ of the second transceiver module 122; the third receive port Nx TX1 of the first frequency band is connected to the fourth external port ④ of the second transceiver module 122; the second receive port Nx TX1 of the second frequency band is connected to the fourth external port ④ of the second transceiver module 122; the second receive port Nx TX1 of the first ... RX3 and the third receiving port Ny RX3 of the second frequency band are respectively connected to the first external port ① and the second external port ② of the first receiving module 123. The fourth receiving port Nx RX4 of the first frequency band and the fourth receiving port Ny RX4 of the second frequency band of the RF transceiver 11 are connected to the thirteenth external port of the first transceiver module 121 through the third SPDT switch 143. The PDET1 port of RF transceiver 11 is connected to the tenth external port ⑩ of the first transceiver module 121, and the PDET2 port of RF transceiver 11 is connected to the tenth external port ⑩ of the second transceiver module 122. The fifth external port ⑤ of the first transceiver module 121 is connected to the P port P1 of the first SPDT switch 141, the first T port T1 of the first SPDT switch 141 is connected to the antenna of the first antenna group 131, and the second T port T2 of the first SPDT switch 141 is connected to the second T port T2 of the second SPDT switch 142. The fifth external port ⑤ of the second transceiver module 122 is connected to the first T port T1 of the second SPDT switch 142, and the P port P1 of the second SPDT switch 142 is connected to the antenna of the second antenna group 132.

[0169] Among them, the seventh external port ⑦ of the first transceiver module 121 is connected to the coaxial cable 151 (e.g., Figure 4B The thick line in the diagram connects to the first external port ① of the second receiving module 124, and the seventh external port ⑦ of the second transceiver module 122 connects to the fifth external port ⑤ of the first receiving module 123. The eighth external port ⑧ of the first transceiver module 121 connects to the sixth external port ⑥ of the second transceiver module 122.

[0170] Figure 4B and Figure 4A Similarly, with Figure 4AIn comparison, the position of the first receiving module 123 has been moved from the sub-board to the main board, and the connection relationship between the second transceiver module 122 and the first receiving module 123, as well as the connection relationship between the first transceiver module 121 and the first receiving module 123, has changed somewhat. Specifically, the first transceiver module 121 is directly connected to the DP4T switch of the first receiving module 123. When the first transceiver module 121 transmits signals, it does not need to go through the second channel selection switch 3P3T of the second transceiver module 122 or the bypass channel of the first receiving module 123, which can reduce the switching insertion loss when the first transceiver module 121 transmits signals through the third antenna group 133. The second transceiver module 122 is directly connected to the DP4T switch of the first receiving module 123. When the second transceiver module 122 transmits signals, it does not need to go through the bypass channel of the first receiving module 123, which can reduce the loss when the second transceiver module 122 transmits signals through the third antenna group 133. Since the first receiving module 123, the first transceiver module 121, and the second transceiver module 122 are all located on the motherboard, the DP3T switch of the first receiving module 123 is connected to the third receiving port Nx RX3 of the first frequency band and the third receiving port Ny of the second frequency band of the RF transceiver 11. The RX3 is connected via PCB traces, and the first transceiver module 121 and the first receiver module 123 are also connected via PCB traces, eliminating the need for coaxial cable connections and saving costs.

[0171] Figure 4A , Figure 4B These are two possible layout methods provided in the embodiments of this application. The embodiments of this application can also flexibly set the layout positions between the first transceiver module, the second transceiver module, the first receiving module, and the second receiving module according to the available layout space on the PCB board. The layout method can be selected based on the available layout space on the PCB board. Figure 4A , Figure 4B Other RF module layouts (e.g., moving the second receiving module to the motherboard, or moving both the first and second receiving modules to the motherboard, etc.) are not limited in the embodiments of this application.

[0172] Please see Figure 4C , Figure 4C This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application. For example... Figure 4C As shown, Figure 4C and Figure 4A Similarly, with Figure 4A compared to, Figure 4C The third and fourth antenna groups each have one antenna. Both antennas in the third and fourth antenna groups are dual-band antennas, meaning that the antennas in the third and fourth antenna groups can simultaneously support transmission and reception in two frequency bands.

[0173] Please see Figure 4D , Figure 4DThis is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application. For example... Figure 4D As shown, Figure 4D and Figure 4B Similarly, with Figure 4B compared to, Figure 4D The third and fourth antenna groups each have one antenna. Both antennas in the third and fourth antenna groups are dual-band antennas, meaning that the antennas in the third and fourth antenna groups can simultaneously support transmission and reception in two frequency bands.

[0174] Figures 4E to 4L The RF system supports the following functions: ① 5G NR dual-band; ② DL CA support; ③ 4-antenna SRS polling transmission support; ④ NR 2T4R (single-band 2-channel transmit 4-channel receive) compatible with NR 1T4R (single-band 1-channel transmit 4-channel receive); ⑤ HPUE support. The 5G RF system includes an RF transceiver, an RF processing circuit, and a first antenna group, a second antenna group, a third antenna group, and a fourth antenna group. The RF transceiver is connected to the RF processing circuit. The first and second antenna groups each include one antenna, and the third and fourth antenna groups each include one or two antennas.

[0175] Please see Figure 4E , Figure 4E This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application. For example... Figure 4E As shown, both the third antenna group 133 and the fourth antenna group 134 include two antennas. The radio frequency processing circuit 12 includes a first transceiver module 121, a second transceiver module 122, a first receiving module 123, and a second receiving module 124. The first transceiver module 121 is connected to the first antenna group 131 through a first SPDT switch 141, and the second transceiver module 122 is connected to the second antenna group 132 through a second SPDT switch 142. One T port of the first SPDT switch 141 is connected to one T port of the second SPDT switch 142. The first receiving module 123 is connected to the third antenna group 133, and the second receiving module 124 is connected to the fourth antenna group 134.

[0176] The first transceiver module 121 and the second transceiver module 122 are mounted on the main board, while the first receiving module 123 and the second receiving module 124 are mounted on the sub-board. The main board and the sub-board are spatially separated, and the components on the main board and the components on the sub-board need to be connected via coaxial cables.

[0177] The first transceiver module 121 is positioned close to the first antenna group 131, the second transceiver module 122 is positioned close to the second antenna group 132, the first receiving module 123 is positioned close to the third antenna group 133, and the second receiving module 124 is positioned close to the fourth antenna group 124.

[0178] in, Figure 4E The internal component structure and connection relationship of the transceiver module are as follows: Figure 3B As shown in the transceiver module diagram, the internal components and connections of the receiver module are as follows: Figure 2A The receiving module is shown in the diagram, and will not be described in detail here.

[0179] The first transmit port Nx TX1 of the first frequency band of the RF transceiver 11 is connected to the first external port ① of the first transceiver module 121; the second transmit port Nx TX2 of the first frequency band is connected to the first external port ① of the second transceiver module 122; the first transmit port Ny TX1 of the second frequency band is connected to the third external port ③ of the first transceiver module 121; the second transmit port Ny TX2 of the second frequency band is connected to the third external port ③ of the second transceiver module 122; the first receive port Nx RX1 of the first frequency band of the RF transceiver 11 is connected to the second external port ② of the first transceiver module 121; the first receive port Ny RX1 of the second frequency band of the RF transceiver 11 is connected to the fourth external port ④ of the first transceiver module 121; the second receive port Nx RX2 of the first frequency band of the RF transceiver 11 is connected to the second external port ② of the second transceiver module 122; the second receive port Ny RX2 of the second frequency band is connected to the fourth external port ④ of the second transceiver module 122; the third receive port Nx TX1 of the first frequency band is connected to the fourth external port ④ of the second transceiver module 122; the third receive port Nx TX1 of the first frequency band is connected to the fourth external port ④ of the second transceiver module 122; the second receive port Nx TX1 of the second frequency band is connected to the fourth external port ④ of the second transceiver module 122; the second receive port Nx TX1 of the first ... RX3 connects to the twelfth external port of the second transceiver module 122. The third receiving port NyRX3 of the second frequency band is connected to the second external port ② of the first receiving module 123 via the first coaxial cable 151, and the fourth receiving port NxRX4 of the first frequency band of the RF transceiver 11 is connected to the twelfth external port of the first transceiver module 121. The fourth receiving port NyRX4 of the second frequency band is connected to the second external port ② of the second receiving module 124 via the second coaxial cable 152. The PDET1 port of the RF transceiver 11 is connected to the tenth external port ⑩ of the first transceiver module 121, and the PDET2 port of the RF transceiver 11 is connected to the tenth external port ⑩ of the second transceiver module 122. The fifth external port ⑤ of the first transceiver module 121 is connected to the P port P1 of the first SPDT switch 141, the first T port T1 of the first SPDT switch 141 is connected to the antenna of the first antenna group 131, and the second T port T2 of the first SPDT switch 141 is connected to the second T port T2 of the second SPDT switch 142. The fifth external port ⑤ of the second transceiver module 122 is connected to the first T port T1 of the second SPDT switch 142, and the P port P1 of the second SPDT switch 142 is connected to the antenna of the second antenna group 132.

[0180] The seventh external port ⑦ of the first transceiver module 121 is connected to the first external port ① of the second receiving module 124 via the third coaxial cable 153, and the seventh external port ⑦ of the second transceiver module 122 is connected to the first external port ① of the first receiving module 123 via the fourth coaxial cable 154.

[0181] The radio frequency system 100 is used to control the transmission and reception path between the target frequency band transmission and reception port (transmit port or receive port) of the radio frequency transceiver 11 and the target antenna group through the first SPDT switch 141 and the second SPDT switch 142, and transmit and receive signals through the antenna in the target antenna group, so as to realize the two-way transmit and four-way receive 2T4R SRS switching function of the radio frequency system 100 and the one-way transmit and four-way receive 1T4R SRS switching function.

[0182] The radio frequency transceiver 11 is configured to enable the receiving path between the receiving port of the target frequency band and the target antenna group, so that the radio frequency transceiver 11 receives signals through the antennas in the target antenna group to realize the downlink carrier aggregation (DLCA) function of the radio frequency system 100.

[0183] Optionally, the radio frequency transceiver 11 is configured to enable the transmission path between the transmission port of the target frequency band and the target antenna group, so that the radio frequency transceiver 11 transmits signals through the antenna in the target antenna group to realize the transmission function of the radio frequency system 100.

[0184] The radio frequency transceiver 11 has transmit, receive, and SRS transmit functions. The target frequency band can include any one of the 5G NR bands such as N77 (3300–4200MHz), N78 (3300–3800MHz), N79 (4400–5000MHz), and N41 (2496–2690MHz). The target antenna group can be any one of the first antenna group 131, the second antenna group 132, the third antenna group 133, and the fourth antenna group 134. For details regarding support for two-way transmit and four-way receive 2T4R SRS switching functionality compatible with one-way transmit and four-way receive 1T4R SRS switching functionality, please refer to [link to documentation]. Figure 4A This will not be elaborated upon here.

[0185] Regarding support for DL ​​CA, and Figure 4A compared to, Figure 4E The NxRX3 of the RF transceiver 11 is connected to the twelfth external port of the second transceiver module 122. Ny RX3 is connected to the second external port ② of the first receiving module 123 via the first coaxial cable 151. Nx RX3 and Ny RX3 can simultaneously receive downlink carrier signals, achieving downlink carrier aggregation. Similarly, Figure 4E The NxRX4 of the RF transceiver 11 is connected to the twelfth external port of the first transceiver module 121. Ny RX4 is connected to the second external port ② of the second receiving module 124 via the second coaxial cable 152. Nx RX4 and Ny RX4 can simultaneously receive downlink carrier signals, therefore, Figure 4E Downlink carrier aggregation can be achieved.

[0186] As can be seen, this RF system is compatible with 1T4R SRS transmit polling, that is, it supports the ability to transmit from the first transceiver module to all four antenna groups.

[0187] Please see Figure 4F , Figure 4F This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application. For example... Figure 4F As shown, both the third antenna group 133 and the fourth antenna group 134 include two antennas. The radio frequency processing circuit 12 includes a first transceiver module 121, a second transceiver module 122, a first receiving module 123, and a second receiving module 124. The first transceiver module 121 is connected to the first antenna group 131 through a first SPDT switch 141, and the second transceiver module 122 is connected to the second antenna group 132 through a second SPDT switch 142. One T port of the first SPDT switch 141 is connected to one T port of the second SPDT switch 142. The first receiving module 123 is connected to the third antenna group 133, and the second receiving module 124 is connected to the fourth antenna group 134.

[0188] The first transceiver module 121 and the second transceiver module 122 are mounted on the main board, while the first receiving module 123 and the second receiving module 124 are mounted on the sub-board.

[0189] The first transceiver module 121 is positioned near the first antenna group 131, the second transceiver module 122 is positioned near the second antenna group 132, the first receiving module 123 is positioned near the third antenna group 133, and the second receiving module 124 is positioned near the fourth antenna group 134.

[0190] in, Figure 4F The internal component structure and connection relationship of the transceiver module are as follows: Figure 3C As shown in the transceiver module diagram, the internal components and connections of the receiver module are as follows: Figure 2A The receiving module is shown in the diagram, and will not be described in detail here.

[0191] The first transmit port Nx TX1 of the first frequency band of the RF transceiver 11 is connected to the first external port ① of the first transceiver module 121; the second transmit port Nx TX2 of the first frequency band is connected to the first external port ① of the second transceiver module 122; the first transmit port Ny TX1 of the second frequency band is connected to the third external port ③ of the first transceiver module 121; the second transmit port Ny TX2 of the second frequency band is connected to the third external port ③ of the second transceiver module 122; the first receive port Nx RX1 of the first frequency band of the RF transceiver 11 is connected to the second external port ② of the first transceiver module 121; the first receive port Ny RX1 of the second frequency band of the RF transceiver 11 is connected to the fourth external port ④ of the first transceiver module 121; the second receive port Nx RX2 of the first frequency band of the RF transceiver 11 is connected to the second external port ② of the second transceiver module 122; the second receive port Ny RX2 of the second frequency band is connected to the fourth external port ④ of the second transceiver module 122; the third receive port Nx TX1 of the first frequency band is connected to the fourth external port ④ of the second transceiver module 122; the third receive port Nx TX1 of the first frequency band is connected to the fourth external port ④ of the second transceiver module 122; the second receive port Nx TX1 of the second frequency band is connected to the fourth external port ④ of the second transceiver module 122; the second receive port Nx TX1 of the first ... RX3 connects to the twelfth external port of the second transceiver module 122. The third receiving port NyRX3 of the second frequency band is connected to the second external port ② of the first receiving module 123 via the first coaxial cable 151, and the fourth receiving port NxRX4 of the first frequency band of the RF transceiver 11 is connected to the twelfth external port of the first transceiver module 121. The fourth receiving port NyRX4 of the second frequency band is connected to the second external port ② of the second receiving module 124 via the second coaxial cable 152. The PDET1 port of the RF transceiver 11 is connected to the tenth external port ⑩ of the first transceiver module 121, and the PDET2 port of the RF transceiver 11 is connected to the tenth external port ⑩ of the second transceiver module 122. The fifth external port ⑤ of the first transceiver module 121 is connected to the P port P1 of the first SPDT switch 141, the first T port T1 of the first SPDT switch 141 is connected to the antenna of the first antenna group 131, and the second T port T2 of the first SPDT switch 141 is connected to the second T port T2 of the second SPDT switch 142. The fifth external port ⑤ of the second transceiver module 122 is connected to the first T port T1 of the second SPDT switch 142, and the P port P1 of the second SPDT switch 142 is connected to the antenna of the second antenna group 132.

[0192] The seventh external port ⑦ of the first transceiver module 121 is connected to the first external port ① of the second receiving module 124 via the third coaxial cable 153, and the seventh external port ⑦ of the second transceiver module 122 is connected to the first external port ① of the first receiving module 123 via the fourth coaxial cable 154.

[0193] The radio frequency system 100 is used to control the transmission and reception path between the target frequency band transmission and reception port (transmit port or receive port) of the radio frequency transceiver 11 and the target antenna group through the first SPDT switch 141 and the second SPDT switch 142, and transmit and receive signals through the antenna in the target antenna group, so as to realize the two-way transmit and four-way receive 2T4R SRS switching function of the radio frequency system 100 and the one-way transmit and four-way receive 1T4R SRS switching function.

[0194] The radio frequency transceiver 11 is configured to enable the receiving path between the receiving port of the target frequency band and the target antenna group, so that the radio frequency transceiver 11 receives signals through the antennas in the target antenna group to realize the downlink carrier aggregation (DLCA) function of the radio frequency system 100.

[0195] Regarding the compatibility of the 2T4R SRS switching function with two-channel transmit and four-channel receive capabilities with the 1T4R SRS switching function with one-channel transmit and four-channel receive capabilities, please refer to [link / reference needed]. Figure 4A This will not be elaborated upon here.

[0196] For support of DL CA, see [link to relevant documentation]. Figure 4E The description will not be repeated here.

[0197] As can be seen, this RF system is compatible with 1T4R SRS transmit polling, that is, it supports the ability to transmit from the first transceiver module to all four antenna groups.

[0198] Please see Figure 4G , Figure 4G This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application. For example... Figure 4G As shown, both the third antenna group 133 and the fourth antenna group 134 include two antennas. The radio frequency processing circuit 12 includes a first transceiver module 121, a second transceiver module 122, a first receiving module 123, and a second receiving module 124. The first transceiver module 121 is connected to the first antenna group 131 through a first SPDT switch 141, and the second transceiver module 122 is connected to the second antenna group 132 through a second SPDT switch 142. One T port of the first SPDT switch 141 is connected to one T port of the second SPDT switch 142. The first receiving module 123 is connected to the third antenna group 133, and the second receiving module 124 is connected to the fourth antenna group 134.

[0199] The first transceiver module 121 and the second transceiver module 122 are mounted on the main board, while the first receiving module 123 and the second receiving module 124 are mounted on the sub-board. The main board and the sub-board are spatially separated, and the components on the main board and the components on the sub-board need to be connected via coaxial cables.

[0200] The first transceiver module 121 is positioned close to the first antenna group 131, the second transceiver module 122 is positioned close to the second antenna group 132, the first receiving module 123 is positioned close to the third antenna group 133, and the second receiving module 124 is positioned close to the fourth antenna group 124.

[0201] in, Figure 4G The internal component structure and connection relationship of the transceiver module are as follows: Figure 3A As shown in the transceiver module diagram, the internal components and connections of the receiver module are as follows: Figure 2A The receiving module is shown in the diagram, and will not be described in detail here.

[0202] Figure 4G Specific structure and Figure 4E Similarly, this will not be elaborated upon here.

[0203] The radio frequency system 100 is used to control the transmission and reception path between the target frequency band transmission and reception port (transmit port or receive port) of the radio frequency transceiver 11 and the target antenna group through the first SPDT switch 141 and the second SPDT switch 142, and transmit and receive signals through the antenna in the target antenna group, so as to realize the two-way transmit and four-way receive 2T4R SRS switching function of the radio frequency system 100 and the one-way transmit and four-way receive 1T4R SRS switching function.

[0204] The radio frequency transceiver 11 is configured to enable the receiving path between the receiving port of the target frequency band and the target antenna group, so that the radio frequency transceiver 11 receives signals through the antennas in the target antenna group to realize the downlink carrier aggregation (DLCA) function of the radio frequency system 100.

[0205] Regarding the compatibility of the 2T4R SRS switching function with two-channel transmit and four-channel receive capabilities with the 1T4R SRS switching function with one-channel transmit and four-channel receive capabilities, please refer to [link / reference needed]. Figure 4A This will not be elaborated upon here.

[0206] For support of DL CA, see [link to relevant documentation]. Figure 4E The description will not be repeated here.

[0207] As can be seen, this RF system is compatible with 1T4R SRS transmit polling, that is, it supports the ability to transmit from the first transceiver module to all four antenna groups.

[0208] Please see Figure 4H , Figure 4H This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application. For example... Figure 4H As shown, both the third antenna group 133 and the fourth antenna group 134 include two antennas. The radio frequency processing circuit 12 includes a first transceiver module 121, a second transceiver module 122, a first receiving module 123, and a second receiving module 124. The first transceiver module 121 is connected to the first antenna group 131 through a first SPDT switch 141, and the second transceiver module 122 is connected to the second antenna group 132 through a second SPDT switch 142. One T port of the first SPDT switch 141 is connected to one T port of the second SPDT switch 142. The first receiving module 123 is connected to the third antenna group 133, and the second receiving module 124 is connected to the fourth antenna group 134.

[0209] The first transceiver module 121, the second transceiver module 122, and the first receiving module 123 are mounted on the main board, while the second receiving module 124 is mounted on the sub-board. The main board and the sub-board are spatially separated, and the components on the main board and the components on the sub-board need to be connected via coaxial cables.

[0210] in, Figure 4H The internal component structure and connection relationship of the transceiver module are as follows: Figure 3A As shown in the transceiver module diagram, the internal components and connections of the receiver module are as follows: Figure 2A The receiving module is shown in the diagram, and will not be described in detail here.

[0211] The first transmit port Nx TX1 of the first frequency band of the RF transceiver 11 is connected to the first external port ① of the first transceiver module 121; the second transmit port Nx TX2 of the first frequency band is connected to the first external port ① of the second transceiver module 122; the first transmit port Ny TX1 of the second frequency band is connected to the third external port ③ of the first transceiver module 121; the second transmit port Ny TX2 of the second frequency band is connected to the third external port ③ of the second transceiver module 122; the first receive port Nx RX1 of the first frequency band of the RF transceiver 11 is connected to the second external port ② of the first transceiver module 121; the first receive port Ny RX1 of the second frequency band of the RF transceiver 11 is connected to the fourth external port ④ of the first transceiver module 121; the second receive port Nx RX2 of the first frequency band of the RF transceiver 11 is connected to the second external port ② of the second transceiver module 122; the second receive port Ny RX2 of the second frequency band is connected to the fourth external port ④ of the second transceiver module 122; the third receive port Nx TX1 of the first frequency band is connected to the fourth external port ④ of the second transceiver module 122; the third receive port Nx TX1 of the first frequency band is connected to the fourth external port ④ of the second transceiver module 122; the second receive port Nx TX1 of the second frequency band is connected to the fourth external port ④ of the second transceiver module 122; the second receive port Nx TX1 of the first ... RX3 is connected to the second external port ② of the first receiving module 123, and the third receiving port Ny of the second frequency band. RX3 is also connected to the first external port ① of the first receiving module 123, and the fourth receiving port Nx of the first frequency band of the RF transceiver 11. RX4 is connected to the twelfth external port of the first transceiver module 121. The fourth receiving port Ny RX4 of the second frequency band is connected to the second external port ② of the second receiving module 124 via the first coaxial cable 151. The PDET1 port of the RF transceiver 11 is connected to the tenth external port ⑩ of the first transceiver module 121, and the PDET2 port of the RF transceiver 11 is connected to the tenth external port ⑩ of the second transceiver module 122. The fifth external port ⑤ of the first transceiver module 121 is connected to the P port P1 of the first SPDT switch 141, the first T port T1 of the first SPDT switch 141 is connected to the antenna of the first antenna group 131, and the second T port T2 of the first SPDT switch 141 is connected to the second T port T2 of the second SPDT switch 142. The fifth external port ⑤ of the second transceiver module 122 is connected to the first T port T1 of the second SPDT switch 142, and the P port P1 of the second SPDT switch 142 is connected to the antenna of the second antenna group 132.

[0212] The seventh external port ⑦ of the first transceiver module 121 is connected to the first external port ① of the second receiving module 124 via the second coaxial cable 152. The seventh external port ⑦ of the second transceiver module 122 is connected to the fifth external port ⑤ of the first receiving module 123. The eighth external port ⑧ of the first transceiver module 121 is connected to the sixth external port ⑥ of the second transceiver module 122.

[0213] The radio frequency system 100 is used to control the transmission and reception path between the target frequency band transmission and reception port (transmit port or receive port) of the radio frequency transceiver 11 and the target antenna group through the first SPDT switch 141 and the second SPDT switch 142, and transmit and receive signals through the antenna in the target antenna group, so as to realize the two-way transmit and four-way receive 2T4R SRS switching function of the radio frequency system 100 and the one-way transmit and four-way receive 1T4R SRS switching function.

[0214] The receiving port of the radio frequency transceiver 11, configured to receive in the standard frequency band, is connected to the receiving path between the target antenna group, so that the radio frequency transceiver 11 receives signals through the antennas in the target antenna group, thereby realizing the downlink carrier aggregation (DLCA) function of the radio frequency system 100.

[0215] Regarding the compatibility of the 2T4R SRS switching function with two-channel transmit and four-channel receive capabilities with the 1T4R SRS switching function with one-channel transmit and four-channel receive capabilities, please refer to [link / reference needed]. Figure 4A This will not be elaborated upon here.

[0216] For support of DL CA, see [link to relevant documentation]. Figure 4E The description will not be repeated here.

[0217] As can be seen, this RF system is compatible with 1T4R SRS transmit polling, that is, it supports the ability to transmit from the first transceiver module to all four antenna groups.

[0218] Figure 4H and Figure 4G Similarly, with Figure 4GIn comparison, the position of the first receiving module 123 has been moved from the sub-board to the main board, and the connection relationship between the second transceiver module 122 and the first receiving module 123, as well as the connection relationship between the first transceiver module 121 and the first receiving module 123, has changed somewhat. Specifically, the first transceiver module 121 is directly connected to the DP4T switch of the first receiving module 123. When the first transceiver module 121 transmits signals, it does not need to go through the second channel selection switch 3P3T of the second transceiver module 122 or the bypass channel of the first receiving module 123, which can reduce the switching insertion loss when the first transceiver module 121 transmits signals through the third antenna group 133. The second transceiver module 122 is directly connected to the DP4T switch of the first receiving module 123. When the second transceiver module 122 transmits signals, it does not need to go through the bypass channel of the first receiving module 123, which can reduce the loss when the second transceiver module 122 transmits signals through the third antenna group 133. Since the first receiving module 123, the first transceiver module 121, and the second transmitting module 122 are all located on the motherboard, the DP3T switch of the first receiving module 123 is connected to the third receiving port Nx RX3 of the first frequency band and the third receiving port Ny of the second frequency band of the RF transceiver 11. The RX3 is connected via PCB traces, and the first transceiver module 121 and the first receiver module 123 are also connected via PCB traces, eliminating the need for coaxial cable connections and saving costs.

[0219] Figure 4G , Figure 4H These are two possible layout methods provided in the embodiments of this application. The embodiments of this application can also flexibly set the layout positions between the first transceiver module, the second transceiver module, the first receiving module, and the second receiving module according to the available layout space on the PCB board. The layout method can be selected based on the available layout space on the PCB board. Figure 4G , Figure 4H Other RF module layouts (e.g., moving the second receiving module to the motherboard, or moving both the first and second receiving modules to the motherboard, etc.) are not limited in the embodiments of this application.

[0220] Please see Figure 4I , Figure 4I This is a schematic diagram of the specific structure of another radio frequency system provided in the embodiments of this application. Figure 4I and Figure 4E Similarly, with Figure 4E compared to, Figure 4I The third and fourth antenna groups each have one antenna. Both antennas in the third and fourth antenna groups are dual-band antennas, meaning that the antennas in the third and fourth antenna groups can simultaneously support transmission and reception in two frequency bands.

[0221] Please see Figure 4J , Figure 4JThis is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application. For example... Figure 4J As shown, Figure 4J and Figure 4F Similarly, with Figure 4F compared to, Figure 4J The third and fourth antenna groups each have one antenna. Both antennas in the third and fourth antenna groups are dual-band antennas, meaning that the antennas in the third and fourth antenna groups can simultaneously support transmission and reception in two frequency bands.

[0222] Please see Figure 4K , Figure 4K This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application. For example... Figure 4K As shown, Figure 4K and Figure 4G Similarly, with Figure 4G compared to, Figure 4K The third and fourth antenna groups each have one antenna. Both antennas in the third and fourth antenna groups are dual-band antennas, meaning that the antennas in the third and fourth antenna groups can simultaneously support transmission and reception in two frequency bands.

[0223] Please see Figure 4L , Figure 4L This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application. For example... Figure 4L As shown, Figure 4L and Figure 4H Similarly, with Figure 4H compared to, Figure 4L The third and fourth antenna groups each have one antenna. Both antennas in the third and fourth antenna groups are dual-band antennas, meaning that the antennas in the third and fourth antenna groups can simultaneously support transmission and reception in two frequency bands.

[0224] Figures 4M to 4P The RF system supports the following functions: ① 5G NR dual-band; ② does not support DL CA; ③ supports 4-antenna SRS polling transmission; ④ supports NR 2T4R (single-band 2-channel transmit 4-channel receive) compatible with NR 1T4R (single-band 1-channel transmit 4-channel receive); ⑤ supports HPUE. The 5G RF system includes an RF transceiver, an RF processing circuit, and a first antenna group, a second antenna group, a third antenna group, and a fourth antenna group. The RF transceiver is connected to the RF processing circuit. The first and second antenna groups each include two antennas, and the third and fourth antenna groups each include one or two antennas.

[0225] Please see Figure 4M , Figure 4M This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application. For example... Figure 4MAs shown, both the third antenna group 133 and the fourth antenna group 134 include two antennas. The radio frequency processing circuit 12 includes a first transceiver module 121, a second transmitting module 122, a first receiving module 123, and a second receiving module 124. The first transceiver module 121 is connected to the first antenna group 131 through a first DP3T switch 141, and the second transceiver module 122 is connected to the second antenna group 132 through a second DP3T switch 142. The first T port T1 of the first DP3T switch 141 is connected to the first T port T1 of the second DP3T switch 142. The first receiving module 123 is connected to the third antenna group 133, and the second receiving module 123 is connected to the fourth antenna group 134.

[0226] The first transceiver module 121 and the second transceiver module 122 are mounted on the main board, while the first receiving module 123 and the second receiving module 124 are mounted on the sub-board. The main board and the sub-board are spatially separated, and the components on the main board and the components on the sub-board need to be connected via coaxial cables.

[0227] The first transceiver module 121 is positioned close to the first antenna group 131, the second transceiver module 122 is positioned close to the second antenna group 132, the first receiving module 123 is positioned close to the third antenna group 133, and the second receiving module 124 is positioned close to the fourth antenna group 124.

[0228] in, Figure 4M The internal component structure and connection relationship of the transceiver module are as follows: Figure 3A As shown in the transceiver module diagram, the internal components and connections of the receiver module are as follows: Figure 2B The receiving module is shown in the diagram, and will not be described in detail here.

[0229] The first transmit port Nx TX1 of the first frequency band of the RF transceiver 11 is connected to the first external port ① of the first transceiver module 121; the second transmit port Nx TX2 of the first frequency band is connected to the first external port ① of the second transceiver module 122; the first transmit port Ny TX1 of the second frequency band is connected to the third external port ③ of the first transceiver module 121; the second transmit port Ny TX2 of the second frequency band is connected to the third external port ③ of the second transceiver module 122; the first receive port Nx RX1 of the first frequency band of the RF transceiver 11 is connected to the second external port ② of the first transceiver module 121; the first receive port Ny RX1 of the second frequency band of the RF transceiver 11 is connected to the fourth external port ④ of the first transceiver module 121; the second receive port Nx RX2 of the first frequency band of the RF transceiver 11 is connected to the second external port ② of the second transceiver module 122; the second receive port Ny RX2 of the second frequency band is connected to the fourth external port ④ of the second transceiver module 122; the third receive port Nx TX1 of the first frequency band is connected to the fourth external port ④ of the second transceiver module 122; the third receive port Nx TX1 of the first frequency band is connected to the fourth external port ④ of the second transceiver module 122; the second receive port Nx TX1 of the second frequency band is connected to the fourth external port ④ of the second transceiver module 122; the second receive port Nx TX1 of the first ... RX3, the third receiving port of the second frequency band, is connected to the twelfth external port of the second transceiver module 122 via the first SPDT switch 161. The fourth receiving port Nx RX4 of the first frequency band and the fourth receiving port Ny RX4 of the second frequency band of the RF transceiver 11 are connected to the thirteenth external port of the first transceiver module 121 via the second SPDT switch 162. The PDET1 port of RF transceiver 11 is connected to the tenth external port ⑩ of the first transceiver module 121, and the PDET2 port of RF transceiver 11 is connected to the tenth external port ⑩ of the second transceiver module 122. The eighth external port ⑧ of the first transceiver module 121 is connected to the thirteenth external port of the second transceiver module 122. The fifth external port ⑤ and the sixth external port ⑥ of the first transceiver module 121 are respectively connected to the first P port P1 and the second P port P2 of the first DP3T switch 141. The first T port T1 of the first DP3T switch 141 is connected to the first T port T1 of the second DP3T switch 142. The second T port T2 and the third T port T3 of the first DP3T switch 141 are respectively connected to the first antenna and the second antenna of the first antenna group 131. The fifth external port ⑤ and the sixth external port ⑥ of the second transceiver module 122 are respectively connected to the third T port T3 and the second T port T2 of the second DP3T switch 142. The first P port P1 and the second P port P2 of the second DP3T switch 142 are respectively connected to the first antenna and the second antenna of the second antenna group 132.

[0230] Among them, the seventh external port ⑦ of the first transceiver module 121 is connected to the coaxial cable 151 (e.g., Figure 4MThe thick line in the diagram connects to the first external port ① of the second receiving module 124, and the seventh external port ⑦ of the second transceiver module 122 is connected to the first external port ① of the first receiving module 123 via the coaxial cable 152.

[0231] The radio frequency system 100 is used to control the transmission and reception path between the target frequency band transmission and reception port (transmit port or receive port) of the radio frequency transceiver 11 and the target antenna group through the first DP3T switch 141 and the second DP3T switch 142, so as to realize the two-way transmit and four-way receive 2T4R SRS switching function of the radio frequency system 100 and the one-way transmit and four-way receive 1T4R SRS switching function.

[0232] In specific implementation, this includes the process of the aforementioned RF system 100 performing SRS 4-antenna round-robin transmission or autonomous transmission switching in a single frequency band (taking Nx frequency band as an example) (suitable for scenarios where the user holds the antenna or the antenna is blocked, affecting the antenna's uplink transmission):

[0233] The following is combined Figure 2B , Figure 3A and Figure 4MAnalysis is performed. In the first transmission cycle, the radio frequency system 100 controls the first P port P1 of the first channel selection switch DP3T of the first transceiver module 121 to connect with the first T port T1 and the second T port T2 of the first channel selection switch DP3T, and controls the first P port P1 and the second P port interface P2 of the first DP3T switch 141 to connect with the second T port T2 and the third T port T3 of the first DP3T switch 141, respectively. The second T port T2 and the third T port T3 of the first DP3T switch 141 are connected to the first antenna and the second antenna of the first antenna group 131, respectively. The first transceiver module 121 transmits the Nx band signal through the first antenna group 131. Simultaneously, the radio frequency system 100 controls the first P port P1 of the first channel selection switch DP3T of the first transceiver module 121 to connect with the third T port T3, and controls the first P port P1 of the second channel selection switch 3P3T of the first transceiver module 121 to connect with the first T port T1 and the second T port T2 of the second channel selection switch 3P3T. Since the first T port T1 of the second channel selection switch 3P3T of the first transceiver module 121 is the seventh external port ⑦ of the first transceiver module 121, the seventh external port ⑦ of the first transceiver module 121 can be connected to the fourth antenna group 134 through the second receiving module 124, thereby enabling the first transceiver module 121 to transmit Nx band signals through the fourth antenna group 134. Simultaneously, the RF system 100 controls the first T port T1 of the second DP3T switch 142 to connect with the first P port P1 and the second P port P2 of the second DP3T switch 142, and controls the second T port T2 and the third T port T3 of the second SPDT switch 162 to disconnect from the first P port P1 and the second P port P2 of the second DP3T switch 142. Since the first P port P1 and the second P port P2 of the second DP3T switch 142 are connected to the second antenna group 132, the first transceiver module 121 can transmit Nx band signals through the second antenna group 132. At the same time, the RF system 100 controls the third P port P3 of the second channel selection switch 3P3T of the second transceiver module 122 to connect with the first T port T1 of the second channel selection switch 3P3T. Since the third P port P3 of the second channel selection switch 3P3T is the thirteenth external port of the second transceiver module 122... The thirteenth external port of the second transceiver module 122 The first transceiver module 122 is connected to the eighth external port ⑧ of the first transceiver module 121. The eighth external port ⑧ of the first transceiver module 121 is the second T port T2 of the second channel selection switch 3P3T of the first transceiver module 121. The first T port T1 of the second channel selection switch 3P3T of the second transceiver module 122 is the seventh external port ⑦ of the second transceiver module 122. The seventh external port ⑦ of the second transceiver module 122 can be connected to the third antenna group 133 through the first receiving module 123, thereby enabling the first transceiver module 121 to transmit Nx band signals through the third antenna group 133.

[0234] During the second transmission cycle, the radio frequency system 100 controls the second P port of the first channel selection switch DP3T of the first transceiver module 121 to connect with the first T port T1 and the second T port T2 of the first channel selection switch DP3T, and controls the first P port P1 and the second P port interface of the first DP3T switch 141 to connect with the second T port T2 and the third T port T3 of the first DP3T switch 141, respectively. The second T port T2 and the third T port T3 of the first DP3T switch 141 are connected to the first antenna and the second antenna of the first antenna group 131, respectively. The first transceiver module 121 transmits the Ny band signal through the first antenna group 131. Simultaneously, the radio frequency system 100 controls the second P port P2 of the first channel selection switch DP3T of the first transceiver module 121 to connect with the third T port T3, and controls the first P port of the second channel selection switch of the first transceiver module 121 to connect with the first T port and the second T port of the second channel selection switch. Since the first T port T1 of the second channel selection switch of the first transceiver module 121 is the seventh external port ⑦ of the first transceiver module 121, the seventh external port ⑦ of the first transceiver module 121 can be connected to the fourth antenna group 134 through the second receiving module 124, thereby enabling the first transceiver module 121 to transmit signals in the Ny band through the fourth antenna group 134. Simultaneously, the RF system 100 controls the first T port T1 of the second DP3T switch 142 to connect with the first P port P1 and the second P port P2 of the second DP3T switch 142, and controls the second T port T2 and the third T port T3 of the second DP3T switch 142 to disconnect from the first P port P1 and the second P port P2 of the second DP3T switch 142. Since the first P port P1 and the second P port P2 of the second DP3T switch 142 are connected to the second antenna group 132, the first transceiver module 121 can transmit signals in the Ny band through the second antenna group 132. At the same time, the RF system 100 controls the third P port P3 of the second channel selection switch 3P3T of the second transceiver module 122 to connect with the first T port T1 of the second channel selection switch 3P3T. Since the third P port P3 of the second channel selection switch 3P3T is the thirteenth external port of the second transceiver module 122, the RF system 100 controls the first P port P3 of the second channel selection switch 3P3T to connect with the first T port T1 of the second channel selection switch 3P3T. The thirteenth external port of the second transceiver module 122 The first transceiver module 122 is connected to the eighth external port ⑧ of the first transceiver module 121. The eighth external port ⑧ of the first transceiver module 121 is the second T port T2 of the second channel selection switch 3P3T of the first transceiver module 121. The first T port T1 of the second channel selection switch 3P3T of the second transceiver module 122 is the seventh external port ⑦ of the second transceiver module 122. The seventh external port ⑦ of the second transceiver module 122 can be connected to the third antenna group 133 through the first receiving module 123, thereby enabling the first transceiver module 121 to transmit Ny band signals through the third antenna group 133.

[0235] As can be seen, during the first transmission cycle, the first transceiver module 121 can transmit Nx band signals (e.g., Nx band SRS signals) through the first antenna group 131, the second antenna group 132, the third antenna group 133, and the fourth antenna group 134. During the second transmission cycle, the first transceiver module 121 can transmit Ny band signals (e.g., Ny band SRS signals) through the first antenna group 131, the second antenna group 132, the third antenna group 133, and the fourth antenna group 134. This embodiment of the application can realize a 1T4R SRS switching function for one-channel transmission and four-channel reception in the RF system. While supporting the first transceiver module 121's SRS polling transmission across four antenna groups, it reduces the switching insertion loss of the transceiver module and improves the sensitivity of the transmission and reception channels. Because the switching losses of the first transceiver module 121 and the second transceiver module 122 are reduced, they can support higher transmission power while maintaining the same transmission performance, thus enabling the RF system of this application to be used in HPUE.

[0236] from Figure 4AAs can be seen, during the first transmission cycle, the first transceiver module 121 can transmit Nx band signals (e.g., Nx band SRS signals) through the first antenna group 131 and the fourth antenna group 134, and the second transceiver module 121 can transmit Nx band signals (e.g., Nx band SRS signals) through the second antenna group 132 and the third antenna group 133. During the second transmission cycle, the first transceiver module 121 can transmit Ny band signals (e.g., Ny band SRS signals) through the first antenna group 131 and the fourth antenna group 134, and the second transceiver module 121 can transmit Ny band signals (e.g., Ny band SRS signals) through the second antenna group 132 and the third antenna group 133. The first transceiver module 121 can achieve one-way transmission and two-way reception (1T2R SRS) switching function through the first antenna group 131 and the fourth antenna group 134. The second transceiver module 122 can achieve one-way transmission and two-way reception (1T2R SRS) switching function through the second antenna group 132 and the third antenna group 133. The first transceiver module 121 and the second transceiver module 122 can together achieve two-way transmission and four-way reception (2T4RS) switching function.

[0237] The embodiments of this application can realize the 2T4R SRS switching function of two-channel transmit and four-channel receive in the radio frequency system, and be compatible with the 1T4R SRS switching function of one-channel transmit and four-channel receive.

[0238] As can be seen, this RF system is compatible with 1T4R SRS transmit polling, that is, it supports the ability to transmit from the first transceiver module 121 times to the four antenna groups.

[0239] Please see Figure 4N , Figure 4N This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application. For example... Figure 4N As shown, both the third antenna group 133 and the fourth antenna group 134 include two antennas. The radio frequency processing circuit 12 includes a first transceiver module 121, a second transmitting module 122, a first receiving module 123, and a second receiving module 124. The first transceiver module 121 is connected to the first antenna group 131 through a first DP3T switch 141, and the second transceiver module 122 is connected to the second antenna group 132 through a second DP3T switch 142. The first T port T1 of the first DP3T switch 141 is connected to the first T port T1 of the second DP3T switch 142. The first receiving module 123 is connected to the third antenna group 133, and the second receiving module 123 is connected to the fourth antenna group 134.

[0240] The first transceiver module 121 and the second transceiver module 122 are mounted on the main board, while the first receiving module 123 and the second receiving module 124 are mounted on the sub-board. The main board and the sub-board are spatially separated, and the components on the main board and the components on the sub-board need to be connected via coaxial cables.

[0241] The first transceiver module 121 is positioned close to the first antenna group 131, the second transceiver module 122 is positioned close to the second antenna group 132, the first receiving module 123 is positioned close to the third antenna group 133, and the second receiving module 124 is positioned close to the fourth antenna group 124.

[0242] in, Figure 4N The internal component structure and connection relationship of the transceiver module are as follows: Figure 3A As shown in the transceiver module diagram, the internal components and connections of the receiver module are as follows: Figure 2B The receiving module is shown below, and will not be described in detail here.

[0243] The first transmit port Nx TX1 of the first frequency band of the RF transceiver 11 is connected to the first external port ① of the first transceiver module 121; the second transmit port Nx TX2 of the first frequency band is connected to the first external port ① of the second transceiver module 122; the first transmit port Ny TX1 of the second frequency band is connected to the third external port ③ of the first transceiver module 121; the second transmit port Ny TX2 of the second frequency band is connected to the third external port ③ of the second transceiver module 122; the first receive port Nx RX1 of the first frequency band of the RF transceiver 11 is connected to the second external port ② of the first transceiver module 121; the first receive port Ny RX1 of the second frequency band of the RF transceiver 11 is connected to the fourth external port ④ of the first transceiver module 121; the second receive port Nx RX2 of the first frequency band of the RF transceiver 11 is connected to the second external port ② of the second transceiver module 122; the second receive port Ny RX2 of the second frequency band is connected to the fourth external port ④ of the second transceiver module 122; the third receive port Nx TX1 of the first frequency band is connected to the fourth external port ④ of the second transceiver module 122; the third receive port Nx TX1 of the first frequency band is connected to the fourth external port ④ of the second transceiver module 122; the second receive port Nx TX1 of the second frequency band is connected to the fourth external port ④ of the second transceiver module 122; the second receive port Nx TX1 of the first ... RX3, the third receiving port of the second frequency band, is connected to the first external port ① and the second external port ② of the first receiving module 123. RX4, the fourth receiving port of the first frequency band, is connected to the thirteenth external port of the first transceiver module 121 via the first SPDT switch 161. The PDET1 port of the RF transceiver 11 is connected to the tenth external port ⑩ of the first transceiver module 121, and the PDET2 port of the RF transceiver 11 is connected to the tenth external port ⑩ of the second transceiver module 122. The fifth external port ⑤ and the sixth external port ⑥ of the first transceiver module 121 are connected to the first P port P1 and the second P port P2 of the first DP3T switch 141, respectively. The first T port T1 of the first DP3T switch 141 is connected to the first T port T2 of the second DP3T switch 142. The second T port T2 and the third T port T3 of the first DP3T switch 141 are connected to the first antenna and the second antenna of the first antenna group 131, respectively. The fifth external port ⑤ and the sixth external port ⑥ of the second transceiver module 122 are connected to the third T port T3 and the second T port T2 of the second DP3T switch 142, respectively. The first P port P1 and the second P port P2 of the second DP3T switch 142 are connected to the first antenna and the second antenna of the second antenna group 132, respectively.

[0244] Among them, the seventh external port ⑦ of the first transceiver module 121 is connected to the coaxial cable 151 (e.g., Figure 4N The thick line in the diagram connects to the first external port ① of the second receiving module 124, and the seventh external port ⑦ of the second transceiver module 122 connects to the fifth external port ⑤ of the first receiving module 123. The eighth external port ⑧ of the first transceiver module 121 connects to the sixth external port ⑥ of the second transceiver module 122.

[0245] Figure 4N and Figure 4M Similarly, with Figure 4MIn comparison, the position of the first receiving module 123 has been moved from the sub-board to the main board, and the connection relationship between the second transceiver module 122 and the first receiving module 123, as well as the connection relationship between the first transceiver module 121 and the first receiving module 123, has changed somewhat. Specifically, the first transceiver module 121 is directly connected to the DP4T switch of the first receiving module 123. When the first transceiver module 121 transmits signals, it does not need to go through the second channel selection switch 3P3T of the second transceiver module 122 or the bypass channel of the first receiving module 123, which can reduce the switching insertion loss when the first transceiver module 121 transmits signals through the third antenna group 133. The second transceiver module 122 is directly connected to the DP4T switch of the first receiving module 123. When the second transceiver module 122 transmits signals, it does not need to go through the bypass channel of the first receiving module 123, which can reduce the loss when the second transceiver module 122 transmits signals through the third antenna group 133. Since the first receiving module 123, the first transceiver module 121, and the second transceiver module 122 are all located on the motherboard, the DP3T switch of the first receiving module 123 is connected to the third receiving port Nx RX3 of the first frequency band and the third receiving port Ny of the second frequency band of the RF transceiver 11. The RX3 is connected via PCB traces, and the first transceiver module 121 and the first receiver module 123 are also connected via PCB traces, eliminating the need for coaxial cable connections and saving costs.

[0246] Figure 4M , Figure 4N These are two possible layout methods provided in the embodiments of this application. The embodiments of this application can also flexibly set the layout positions between the first transceiver module 121, the second transceiver module 122, the first receiving module 123, and the second receiving module 124 according to the available layout space on the PCB board. The layout method can be selected based on the available layout space on the PCB board. Figure 4M , Figure 4N Other RF module layouts (e.g., moving the second receiving module 124 to the motherboard, or moving both the first receiving module 123 and the second receiving module 124 to the motherboard, etc.) are not limited in the embodiments of this application.

[0247] Please see Figure 4O , Figure 4O This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application. For example... Figure 4O As shown, Figure 4O and Figure 4M Similarly, with Figure 4M compared to, Figure 4O The third and fourth antenna groups each have one antenna. Both antennas in the third and fourth antenna groups are dual-band antennas, meaning that the antennas in the third and fourth antenna groups can simultaneously support transmission and reception in two frequency bands.

[0248] Please see Figure 4P , Figure 4P This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application. For example... Figure 4P As shown, Figure 4P and Figure 4N Similarly, with Figure 4N compared to, Figure 4P The third and fourth antenna groups each have one antenna. Both antennas in the third and fourth antenna groups are dual-band antennas, meaning that the antennas in the third and fourth antenna groups can simultaneously support transmission and reception in two frequency bands.

[0249] Figures 4Q to 4X The RF system supports the following functions: ① 5G NR dual-band; ② DL CA support; ③ 4-antenna SRS polling transmission support; ④ NR 2T4R (single-band 2-channel transmit 4-channel receive) compatible with NR 1T4R (single-band 1-channel transmit 4-channel receive); ⑤ HPUE support. The 5G RF system includes an RF transceiver, an RF processing circuit, and a first antenna group, a second antenna group, a third antenna group, and a fourth antenna group. The RF transceiver is connected to the RF processing circuit. The first and second antenna groups each include two antennas, and the third and fourth antenna groups each include one or two antennas.

[0250] Please see Figure 4Q , Figure 4Q This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application. For example... Figure 4Q As shown, both the third antenna group 133 and the fourth antenna group 134 include two antennas. The radio frequency processing circuit 12 includes a first transceiver module 121, a second transmitting module 122, a first receiving module 123, and a second receiving module 124. The first transceiver module 121 is connected to the first antenna group 131 through a first DP3T switch 141, and the second transceiver module 122 is connected to the second antenna group 132 through a second DP3T switch 142. The first T port T1 of the first DP3T switch 141 is connected to the first T port T1 of the second DP3T switch 142. The first receiving module 123 is connected to the third antenna group 133, and the second receiving module 123 is connected to the fourth antenna group 134.

[0251] The first transceiver module 121 and the second transceiver module 122 are mounted on the main board, while the first receiving module 123 and the second receiving module 124 are mounted on the sub-board. The main board and the sub-board are spatially separated, and the components on the main board and the components on the sub-board need to be connected via coaxial cables.

[0252] The first transceiver module 121 is positioned close to the first antenna group 131, the second transceiver module 122 is positioned close to the second antenna group 132, the first receiving module 123 is positioned close to the third antenna group 133, and the second receiving module 124 is positioned close to the fourth antenna group 124.

[0253] in, Figure 4Q The internal component structure and connection relationship of the transceiver module are as follows: Figure 3B As shown in the transceiver module diagram, the internal components and connections of the receiver module are as follows: Figure 2A The receiving module is shown in the diagram, and will not be described in detail here.

[0254] The first transmit port Nx TX1 of the first frequency band of the RF transceiver 11 is connected to the first external port ① of the first transceiver module 121; the second transmit port Nx TX2 of the first frequency band is connected to the first external port ① of the second transceiver module 122; the first transmit port Ny TX1 of the second frequency band is connected to the third external port ③ of the first transceiver module 121; the second transmit port Ny TX2 of the second frequency band is connected to the third external port ③ of the second transceiver module 122; the first receive port Nx RX1 of the first frequency band of the RF transceiver 11 is connected to the second external port ② of the first transceiver module 121; the first receive port Ny RX1 of the second frequency band of the RF transceiver 11 is connected to the fourth external port ④ of the first transceiver module 121; the second receive port Nx RX2 of the first frequency band of the RF transceiver 11 is connected to the second external port ② of the second transceiver module 122; the second receive port Ny RX2 of the second frequency band is connected to the fourth external port ④ of the second transceiver module 122; the third receive port Nx TX1 of the first frequency band is connected to the fourth external port ④ of the second transceiver module 122; the third receive port Nx TX1 of the first frequency band is connected to the fourth external port ④ of the second transceiver module 122; the second receive port Nx TX1 of the second frequency band is connected to the fourth external port ④ of the second transceiver module 122; the second receive port Nx TX1 of the first ... RX3 connects to the twelfth external port of the second transceiver module 122. The third receiving port NyRX3 of the second frequency band is connected to the second external port ② of the first receiving module 123 via the first coaxial cable 151, and the fourth receiving port NxRX4 of the first frequency band of the RF transceiver 11 is connected to the twelfth external port of the first transceiver module 121. The fourth receiving port NyRX4 of the second frequency band is connected to the second external port ② of the second receiving module 124 via the second coaxial cable 152. The PDET1 port of the RF transceiver 11 is connected to the tenth external port ⑩ of the first transceiver module 121, and the PDET2 port of the RF transceiver 11 is connected to the tenth external port ⑩ of the second transceiver module 122. The eighth external port ⑧ of the first transceiver module 121 is connected to the thirteenth external port of the second transceiver module 122. The fifth external port ⑤ and the sixth external port ⑥ of the first transceiver module 121 are respectively connected to the first P port P1 and the second P port P2 of the first DP3T switch 141. The first T port T1 of the first DP3T switch 141 is connected to the first T port T1 of the second DP3T switch 142. The second T port T2 and the third T port T3 of the first DP3T switch 141 are respectively connected to the first antenna and the second antenna of the first antenna group 131. The fifth external port ⑤ and the sixth external port ⑥ of the second transceiver module 122 are respectively connected to the third T port T3 and the second T port T2 of the second DP3T switch 142. The first P port P1 and the second P port P2 of the second DP3T switch 142 are respectively connected to the first antenna and the second antenna of the second antenna group 132.

[0255] The seventh external port ⑦ of the first transceiver module 121 is connected to the first external port ① of the second receiving module 124 via the third coaxial cable 153, and the seventh external port ⑦ of the second transceiver module 122 is connected to the first external port ① of the first receiving module 123 via the fourth coaxial cable 154.

[0256] The radio frequency system 100 is used to control the transmission and reception path between the target frequency band transmission and reception port (transmit port or receive port) of the radio frequency transceiver 11 and the target antenna group through the first DP3T switch 141 and the second DP3T switch 142, so as to realize the two-way transmit and four-way receive 2T4R SRS switching function of the radio frequency system 100 and the one-way transmit and four-way receive 1T4R SRS switching function.

[0257] The radio frequency transceiver 11 is configured to enable the receiving path between the receiving port of the target frequency band and the target antenna group, so that the radio frequency transceiver 11 receives signals through the antennas in the target antenna group to realize the downlink carrier aggregation (DLCA) function of the radio frequency system 100.

[0258] Regarding the compatibility of the 2T4R SRS switching function with two-channel transmit and four-channel receive capabilities with the 1T4R SRS switching function with one-channel transmit and four-channel receive capabilities, please refer to [link / reference needed]. Figure 4M This will not be elaborated upon here.

[0259] Regarding support for DL ​​CA, and Figure 4M compared to, Figure 4Q The NxRX3 of the RF transceiver 11 is connected to the twelfth external port of the second transceiver module 122. Ny RX3 is connected to the second external port ② of the first receiving module 123 via the first coaxial cable 151. Nx RX3 and Ny RX3 can simultaneously receive downlink carrier signals, achieving downlink carrier aggregation. Similarly, Figure 4Q The NxRX4 of the RF transceiver 11 is connected to the twelfth external port of the first transceiver module 121. Ny RX4 is connected to the second external port ② of the second receiving module 124 via the second coaxial cable 152. Nx RX4 and Ny RX4 can simultaneously receive downlink carrier signals, therefore, Figure 4Q Downlink carrier aggregation can be achieved.

[0260] As can be seen, this RF system is compatible with 1T4R SRS transmit polling, that is, it supports the ability to transmit from the first transceiver module 121 times to the four antenna groups.

[0261] Please see Figure 4R , Figure 4R This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application. For example... Figure 4R As shown, both the third antenna group 133 and the fourth antenna group 134 include two antennas. The radio frequency processing circuit 12 includes a first transceiver module 121, a second transceiver module 122, a first receiving module 123, and a second receiving module 124. The first transceiver module 121 is connected to the first antenna group 131 through a first DP3T switch 141, and the second transceiver module 122 is connected to the second antenna group 132 through a second DP3T switch 142. The first T port T1 of the first DP3T switch 141 is connected to the first T port T1 of the second DP3T switch 142. The first receiving module 123 is connected to the third antenna group 133, and the second receiving module 124 is connected to the fourth antenna group 134.

[0262] The first transceiver module 121 and the second transceiver module 122 are mounted on the main board, while the first receiving module 123 and the second receiving module 124 are mounted on the sub-board.

[0263] The first transceiver module 121 is positioned near the first antenna group 131, the second transceiver module 122 is positioned near the second antenna group 132, the first receiving module 123 is positioned near the third antenna group 133, and the second receiving module 124 is positioned near the fourth antenna group 134.

[0264] in, Figure 4R The internal component structure and connection relationship of the transceiver module are as follows: Figure 3C As shown in the transceiver module diagram, the internal components and connections of the receiver module are as follows: Figure 2A The receiving module is shown in the diagram, and will not be described in detail here.

[0265] Figure 4R Specific structure and Figure 4Q Similarly, this will not be elaborated upon here.

[0266] The radio frequency system 100 is used to control the transmission and reception path between the target frequency band transmission and reception port (transmit port or receive port) of the radio frequency transceiver 11 and the target antenna group through the first DP3T switch 141 and the second DP3T switch 142, and to transmit and receive signals through the antenna in the target antenna group, so as to realize the two-way transmit and four-way receive 2T4R SRS switching function of the radio frequency system 100.

[0267] The radio frequency transceiver 11 is configured to enable the receiving path between the receiving port of the target frequency band and the target antenna group, so that the radio frequency transceiver 11 receives signals through the antennas in the target antenna group to realize the downlink carrier aggregation (DLCA) function of the radio frequency system 100.

[0268] Regarding the compatibility of the 2T4R SRS switching function with two-channel transmit and four-channel receive capabilities with the 1T4R SRS switching function with one-channel transmit and four-channel receive capabilities, please refer to [link / reference needed]. Figure 4M This will not be elaborated upon here.

[0269] For support of DL CA, see [link to relevant documentation]. Figure 4Q The description will not be repeated here.

[0270] As can be seen, this RF system is compatible with 1T4R SRS transmit polling, that is, it supports the ability to transmit from the first transceiver module 121 times to the four antenna groups.

[0271] Please see Figure 4S , Figure 4S This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application. For example... Figure 4S As shown, both the third antenna group 133 and the fourth antenna group 134 include two antennas. The radio frequency processing circuit includes a first transceiver module 121, a second transceiver module 122, a first receiving module 123, and a second receiving module 124. The first transceiver module 121 is connected to the first antenna group 131 through a first DP3T switch 141, and the second transceiver module 122 is connected to the second antenna group 132 through a second DP3T switch 142. The first T port T1 of the first DP3T switch 141 is connected to the first T port T1 of the second DP3T switch 142. The first receiving module 123 is connected to the third antenna group 133, and the second receiving module 124 is connected to the fourth antenna group 134.

[0272] The first transceiver module 121 and the second transceiver module 122 are mounted on the main board, while the first receiving module 123 and the second receiving module 124 are mounted on the sub-board. The main board and the sub-board are spatially separated, and the components on the main board and the components on the sub-board need to be connected via coaxial cables.

[0273] The first transceiver module 121 is positioned near the first antenna group 131, the second transceiver module 122 is positioned near the second antenna group 132, the first receiving module 123 is positioned near the third antenna group 133, and the second receiving module 124 is positioned near the fourth antenna group 134.

[0274] in, Figure 4S The internal component structure and connection relationship of the transceiver module are as follows: Figure 3A As shown in the transceiver module diagram, the internal components and connections of the receiver module are as follows: Figure 2A The receiving module is shown in the diagram, and will not be described in detail here.

[0275] Figure 4S Specific structure and Figure 4Q Similarly, this will not be elaborated upon here.

[0276] The radio frequency system 100 is used to control the transmission and reception path between the target frequency band transmission and reception port (transmit port or receive port) of the radio frequency transceiver 11 and the target antenna group through the first DP3T switch 141 and the second DP3T switch 142, and to transmit and receive signals through the antenna in the target antenna group, so as to realize the two-way transmit and four-way receive 2T4R SRS switching function of the radio frequency system 100.

[0277] The radio frequency transceiver 11 is configured to enable the receiving path between the receiving port of the target frequency band and the target antenna group, so that the radio frequency transceiver 11 receives signals through the antennas in the target antenna group to realize the downlink carrier aggregation (DLCA) function of the radio frequency system 100.

[0278] Regarding the compatibility of the 2T4R SRS switching function with two-channel transmit and four-channel receive capabilities with the 1T4R SRS switching function with one-channel transmit and four-channel receive capabilities, please refer to [link / reference needed]. Figure 4M This will not be elaborated upon here.

[0279] For support of DL CA, see [link to relevant documentation]. Figure 4Q The description will not be repeated here.

[0280] As can be seen, this RF system is compatible with 1T4R SRS transmit polling, that is, it supports the ability to transmit from the first transceiver module 121 times to the four antenna groups.

[0281] Please see Figure 4T , Figure 4T This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application. For example... Figure 4TAs shown, both the third antenna group 133 and the fourth antenna group 134 include two antennas. The first transceiver module 121, the second transceiver module 122, and the first receiver module 123 of this 5G radio frequency system are mounted on the motherboard, while the second receiver module 124 is mounted on the sub-board.

[0282] Figure 4T and Figure 4S Similarly, with Figure 4S In comparison, the position of the first receiving module 123 has been moved from the sub-board to the main board, and the connection relationship between the second transceiver module 122 and the first receiving module 123, as well as the connection relationship between the first transceiver module 121 and the first receiving module 123, has changed somewhat. Specifically, the first transceiver module 121 is directly connected to the DP4T switch of the first receiving module 123. When the first transceiver module 121 transmits signals, it does not need to go through the second channel selection switch of the second transceiver module 122 and the bypass channel of the first receiving module 123, which can reduce the switching insertion loss when the first transceiver module 121 transmits signals through the third antenna group 133. The second transceiver module 122 is directly connected to the DP4T switch of the first receiving module 123. When the second transceiver module 122 transmits signals, it does not need to go through the bypass channel of the first receiving module 123, which can reduce the loss when the second transceiver module 122 transmits signals through the third antenna group 133. Since the first receiving module 123, the first transceiver module 121, and the second transceiver module 12 are all located on the motherboard, the DP3T switch of the first receiving module 123 is connected to the third receiving port Nx RX3 of the first frequency band and the third receiving port Ny of the second frequency band of the RF transceiver 11. The RX3 is connected via PCB traces, and the first transceiver module 121 and the first receiver module 123 are also connected via PCB traces, eliminating the need for coaxial cable connections and saving costs.

[0283] Figure 4S , Figure 4T These are two possible layout methods provided in the embodiments of this application. The embodiments of this application can also flexibly set the layout positions between the first transceiver module 121, the second transceiver module 122, the first receiving module 123, and the second receiving module 124 according to the available layout space on the PCB board. The layout method can be selected based on the available layout space on the PCB board. Figure 4S , Figure 4T Other RF module layouts (e.g., moving the second receiving module 124 to the motherboard, or moving both the first receiving module 123 and the second receiving module 124 to the motherboard, etc.) are not limited in the embodiments of this application.

[0284] Please see Figure 4U , Figure 4U This is a schematic diagram of the specific structure of another radio frequency system provided in the embodiments of this application. Figure 4U and Figure 4QSimilarly, with Figure 4Q compared to, Figure 4U The third antenna group 133 and the fourth antenna group 134 each have one antenna. Both antennas in the third antenna group 133 and the fourth antenna group 134 are dual-band antennas, meaning that the antennas in the third antenna group 133 and the fourth antenna group 134 can simultaneously support the transmission and reception of two frequency bands.

[0285] Please see Figure 4V , Figure 4V This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application. For example... Figure 4V As shown, Figure 4V and Figure 4R Similarly, with Figure 4R compared to, Figure 4V The third antenna group 133 and the fourth antenna group 134 each have one antenna. Both antennas in the third antenna group 133 and the fourth antenna group 134 are dual-band antennas, meaning that the antennas in the third antenna group 133 and the fourth antenna group 134 can simultaneously support the transmission and reception of two frequency bands.

[0286] Please see Figure 4W , Figure 4W This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application. For example... Figure 4W As shown, Figure 4W and Figure 4S Similarly, with Figure 4S compared to, Figure 4W The third antenna group 133 and the fourth antenna group 134 each have one antenna. Both antennas in the third antenna group 133 and the fourth antenna group 134 are dual-band antennas, meaning that the antennas in the third antenna group 133 and the fourth antenna group 134 can simultaneously support the transmission and reception of two frequency bands.

[0287] Please see Figure 4X , Figure 4X This is a schematic diagram of another specific structure of a radio frequency system provided in an embodiment of this application. For example... Figure 4X As shown, Figure 4X and Figure 4T Similarly, with Figure 4T compared to, Figure 4X The third antenna group 133 and the fourth antenna group 134 each have one antenna. Both antennas in the third antenna group 133 and the fourth antenna group 134 are dual-band antennas, meaning that the antennas in the third antenna group 133 and the fourth antenna group 134 can simultaneously support the transmission and reception of two frequency bands.

[0288] It should be noted that the external ports of the transceiver module and the receiver module provided in this application embodiment are redundant. This is to unify the modules and facilitate support for multiple radio frequency systems.

[0289] Furthermore, the coaxial cable in the radio frequency system described in the embodiments of this application may also be replaced with a liquid crystal polymer material LCP flexible board, etc.

[0290] This application embodiment also provides an electronic device, including a radio frequency transceiver, a radio frequency processing circuit, and a first antenna group, a second antenna group, a third antenna group, and a fourth antenna group, wherein the radio frequency transceiver is connected to the radio frequency processing circuit;

[0291] The radio frequency processing circuit includes a first transceiver module, a second transceiver module, a first receiving module, and a second receiving module. The first transceiver module is configured to establish a connection path with a first antenna group via a first external switch. The second transceiver module is configured to establish a connection path with a second antenna group via a second external switch. The first receiving module is configured to establish a connection path with a third antenna group and a fourth antenna group. The first external switch is configured to establish a connection path with the second external switch. The first transceiver module is also configured to establish a connection path with the second antenna group via the first and second external switches, with the third antenna group via the second transceiver module and the first receiving module, and with the fourth antenna group via the second receiving module. The first transceiver module is also configured to perform 1T4R SRS switching via the first, second, third, and fourth antenna groups.

[0292] Optionally, the second transceiver module is further configured to establish a connection path with the third antenna group through the first receiving module. The first transceiver module is further configured to perform 1T2R SRS switching through the first antenna group and the fourth antenna group. The second transceiver module is further configured to perform 1T2R SRS switching through the second antenna group and the third antenna group. The 1T2R SRS switching of the first transceiver module and the 1T2R SRS switching of the second transceiver module together form 2T4R SRS switching.

[0293] Optionally, the electronic device is further configured to enable the receiving path between the receiving port of the target frequency band of the radio frequency transceiver and the target antenna group, so that the radio frequency transceiver receives signals through the antenna in the target antenna group to realize the downlink carrier aggregation function of the radio frequency system.

[0294] Optionally, the first antenna group and the second antenna group each include one antenna or two antennas, and the third antenna group and the fourth antenna group each include one antenna or two antennas.

[0295] Optionally, when both the first antenna group and the second antenna group include one antenna, the first external switching switch includes a first SPDT switch, and the second external switching switch includes a second SPDT switch; when both the first antenna group and the second antenna group include two antennas, the first external switching switch includes a first DP3T switch, and the second external switching switch includes a second DP3T switch.

[0296] The electronic device includes at least one of the following: a mobile terminal or a base station.

[0297] In one possible example, the radio frequency system supports simultaneous reception of two frequency bands and four downlink antennas.

[0298] This application also provides an antenna switching control method, such as... Figure 5 As shown, this antenna switching control method is applied to an electronic device. The electronic device includes a radio frequency (RF) system, which includes an RF transceiver, an RF processing circuit, and a first antenna group, a second antenna group, a third antenna group, and a fourth antenna group. The RF transceiver is connected to the RF processing circuit. The first and second antenna groups each include one or two antennas, and the third and fourth antenna groups each include one or two antennas. The RF processing circuit includes a first transceiver module, a second transceiver module, a first receiving module, and a second receiving module. The first transceiver module is connected to the first antenna group via a first external switching switch, and the second transceiver module is connected to the second antenna group via a second external switching switch. One T-port of the first external switching switch is connected to one T-port of the second external switching switch. The first receiving module is connected to the third antenna group, and the second receiving module is connected to the fourth antenna group. Figure 5 As shown, the method includes:

[0299] Step 501: The electronic device is configured to establish a connection path between the first external switch and the second external switch, and to establish a connection path between the first transceiver module and the second external switch and the second antenna group, to establish a connection path between the second transceiver module and the first receiving module and the third antenna group, and to establish a connection path between the second receiving module and the fourth antenna group, so that the first transmitting module can achieve 1T4R SRS switching through the first antenna group, the second antenna group, the third antenna group and the fourth antenna group.

[0300] Optional, Figure 5 The method shown may also include the following steps:

[0301] The electronic device is configured to establish a connection path between the second transceiver module and the third antenna group through the first receiving module, so that the first transceiver module can achieve 1T2R SRS switching through the first antenna group and the fourth antenna group, and the second transceiver module can achieve 1T2R SRS switching through the second antenna group and the third antenna group; wherein, the 1T2R SRS switching of the first transceiver module and the 1T2R SRS switching of the second transceiver module together form 2T4R SRS switching.

[0302] Optional, Figure 5 The method shown may also include the following steps:

[0303] The electronic device is configured to establish a receiving path between the receiving port of the target frequency band of the RF transceiver and the target antenna group, so that the RF transceiver can receive signals through the antennas in the target antenna group to realize the downlink carrier aggregation function of the RF system.

[0304] Optionally, the first antenna group and the second antenna group each include one antenna or two antennas, and the third antenna group and the fourth antenna group each include one antenna or two antennas.

[0305] Optionally, when both the first antenna group and the second antenna group include one antenna, the first external switching switch includes a first SPDT switch, and the second external switching switch includes a second SPDT switch; when both the first antenna group and the second antenna group include two antennas, the first external switching switch includes a first DP3T switch, and the second external switching switch includes a second DP3T switch. The target frequency band includes 5G NR bands such as n79, n77, and n41, but is not uniquely defined here. The transmit port refers to the signal transmit port of the RF transceiver, and the target antenna group includes the first antenna group, the second antenna group, the third antenna group, or the fourth antenna group.

[0306] As can be seen, in this example, when the first antenna group and the second antenna group each contain only one antenna, the electronic device achieves the 1T4R SRS switching function of the RF system by setting the first external switching switch and the second external switching switch between the first antenna group and the second antenna group. It is not necessary to establish an internal transceiver path between the first transceiver module and the second transceiver module to achieve the 1T4R SRS switching function of the RF system. This can reduce the switching loss of the first transceiver module and the second transceiver module, and reduce the switching insertion loss of the transceiver module while supporting the 1T4R SRS switching function, thereby improving the sensitivity of the transmit and receive channels.

[0307] like Figure 6As shown in the diagram, this application provides a schematic diagram of the structure of an electronic device 600. The electronic device 600 includes an application processor 610, a memory 620, a communication interface 630, and one or more programs 621. The one or more programs 621 are stored in the memory 620 and configured to be executed by the application processor 610. The one or more programs 621 include instructions for performing the following steps:

[0308] Configure the first external switch to establish a connection path with the second external switch, configure the first transceiver module to establish a connection path with the second antenna group through the first external switching switch and the second external switching switch, configure the second transceiver module and the first receiving module to establish a connection path with the third antenna group, and configure the second receiving module to establish a connection path with the fourth antenna group, so that the first transmitting module can achieve 1T4R SRS switching through the first antenna group, the second antenna group, the third antenna group and the fourth antenna group.

[0309] Optionally, the one or more procedures 621 may further include instructions for performing the following steps:

[0310] The second transceiver module is configured to establish a connection path with the third antenna group through the first receiving module, so that the first transceiver module can achieve 1T2R SRS switching through the first antenna group and the fourth antenna group, and the second transceiver module can achieve 1T2R SRS switching through the second antenna group and the third antenna group; wherein, the 1T2R SRS switching of the first transceiver module and the 1T2R SRS switching of the second transceiver module together form 2T4R SRS switching.

[0311] Optionally, the one or more procedures 621 may further include instructions for performing the following steps:

[0312] The receiving path between the receiving port of the target frequency band of the RF transceiver and the target antenna group is configured to be open, so that the RF transceiver receives signals through the antennas in the target antenna group, thereby realizing the downlink carrier aggregation function of the RF system. It can be seen that, in this embodiment, the electronic device can reduce the switching insertion loss of the transceiver module and improve the sensitivity of the transmit and receive channels while supporting 1T4R SRS switching function.

[0313] like Figure 7As shown in the figure, this application provides an antenna switching control device applied to an electronic device. The electronic device includes a radio frequency (RF) system, which includes an RF transceiver and an RF processing circuit connected to the RF transceiver. The RF processing circuit includes a first transceiver module, a second transceiver module, a first receiving module, and a second receiving module. The first transceiver module is configured to establish a connection path with a first antenna group via a first external switching switch. The second transceiver module is configured to establish a connection path with a second antenna group via a second external switching switch. The first receiving module is configured to establish a connection path with a third antenna group, and the second receiving module is configured to establish a connection path with a fourth antenna group. The antenna switching control device includes a processing unit 701 and a communication unit 702, wherein...

[0314] The processing unit 701 is configured through the communication unit 702 to establish a connection path between the first external switch and the second external switch, to configure the first transceiver module to establish a connection path with the second antenna group through the first external switching switch and the second external switching switch, to establish a connection path with the third antenna group through the second transceiver module and the first receiving module, and to establish a connection path with the fourth antenna group through the second receiving module, so that the first transmitting module can achieve 1T4R SRS switching through the first antenna group, the second antenna group, the third antenna group and the fourth antenna group.

[0315] Optionally, the processing unit 701 is configured, through the communication unit 702, to configure the second transceiver module to establish a connection path with the third antenna group through the first receiving module, so that the first transceiver module can achieve 1T2R SRS switching through the first antenna group and the fourth antenna group, and to configure the second transceiver module to achieve 1T2R SRS switching through the second antenna group and the third antenna group; wherein, the 1T2R SRS switching of the first transceiver module and the 1T2R SRS switching of the second transceiver module together form 2T4R SRS switching.

[0316] Optionally, the processing unit 701 is further configured to configure the receiving port of the target frequency band of the radio frequency transceiver and the target antenna group to be connected through the communication unit 702, so that the radio frequency transceiver receives signals through the antenna in the target antenna group to realize the downlink carrier aggregation function of the radio frequency system.

[0317] Optionally, the first antenna group and the second antenna group each include one antenna or two antennas, and the third antenna group and the fourth antenna group each include one antenna or two antennas.

[0318] The antenna switching control device may further include a storage unit 703 for storing program code and data of the electronic device. The processing unit 701 may be a processor, the communication unit 702 may be a touch screen or a transceiver, and the storage unit 703 may be a memory.

[0319] As can be seen from the embodiments of this application, the electronic device can reduce the switching insertion loss of the transceiver module and improve the sensitivity of the transmission and reception channels while supporting the 1T4R function.

[0320] This application also provides a computer storage medium storing a computer program for electronic data interchange, which causes a computer to perform some or all of the steps of any of the methods described in the above method embodiments, wherein the computer includes an electronic device.

[0321] This application also provides a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps of any of the methods described in the above method embodiments. The computer program product may be a software installation package, and the computer may include an electronic device.

[0322] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0323] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0324] In the several embodiments provided in this application, it should be understood that the disclosed apparatus can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of the units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical or other forms.

[0325] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0326] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0327] If the integrated units described above are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage device (CMD). Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a memory and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned memory includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0328] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, which may include: flash drive, read-only memory (ROM), random access memory (RAM), disk or optical disk, etc.

[0329] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

[0330] The above are the implementation methods of the embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the embodiments of this application, and these improvements and modifications are also considered to be within the protection scope of this application.

Claims

1. A radio frequency system, characterized in that, include: Radio frequency transceiver; The radio frequency processing circuit, connected to the radio frequency transceiver, includes a first transceiver module, a second transceiver module, a first receiving module, and a second receiving module. The first transceiver module is configured to establish a connection path with a first antenna group through a first external switching switch. The second transceiver module is configured to establish a connection path with a second antenna group through a second external switching switch. The first receiving module is configured to establish a connection path with a third antenna group. The second receiving module is configured to establish a connection path with a fourth antenna group. Specifically, the first external switching switch is configured to establish a connection path with the second external switching switch; the first transceiver module is further configured to establish a connection path with the second antenna group through the first and second external switching switches, establish a connection path with the third antenna group through the second transceiver module and the first receiving module, and establish a connection path with the fourth antenna group through the second receiving module; the first transceiver module is also configured to achieve 1T4R SRS switching via the first antenna group, the second antenna group, the third antenna group, and the fourth antenna group. The second transceiver module is further configured to establish a connection path with the third antenna group through the first receiving module. The first transceiver module is further configured to perform 1T2R SRS switching through the first antenna group and the fourth antenna group. The second transceiver module is further configured to perform 1T2R SRS switching through the second antenna group and the third antenna group. The 1T2R SRS switching of the first transceiver module and the 1T2R SRS switching of the second transceiver module together form 2T4R SRS switching.

2. The radio frequency system according to claim 1, characterized in that, The radio frequency transceiver is configured to enable the receiving path between the receiving port of the target frequency band and the target antenna group, so that the radio frequency transceiver can receive signals through the antennas in the target antenna group to realize the downlink carrier aggregation function of the radio frequency system.

3. The system according to any one of claims 1 to 2, characterized in that, The radio frequency system is applied to an electronic device, which includes a motherboard, a battery, and a sub-board. The motherboard and the sub-board are located on opposite sides of the battery. The first transceiver module and the second transceiver module are mounted on the motherboard, and the first receiving module and the second receiving module are mounted on the sub-board.

4. The system according to any one of claims 1 to 2, characterized in that, The radio frequency system is applied to an electronic device, which includes a motherboard, a battery, and a sub-board. The motherboard and the sub-board are located on opposite sides of the battery. The first transceiver module, the second transceiver module, and the first receiver module are disposed on the motherboard, and the second receiver module is disposed on the sub-board.

5. The system according to any one of claims 1 to 2, characterized in that, Both the first transceiver module and the second transceiver module include two signal transceiver processing circuits, one power detection selection switch, and at least two channel selection switches. The two signal transceiver processing circuits are connected to the power detection selection switch and the first channel selection switch. The first channel selection switch is connected to the second channel selection switch. The power detection selection switch includes a three-pole single-throw (3PST) switch, the first channel selection switch includes a double-pole triple-throw (DP3T) switch, and the second channel selection switch includes a three-pole triple-throw (3P3T) switch or a four-pole triple-throw (4P3T) switch. The first channel selection switch is connected to the first external switching switch or the second external switching switch. Both the first receiving module and the second receiving module include two signal receiving channels, a first built-in switch, and a second built-in switch. The two signal receiving channels are connected to the third antenna group or the fourth antenna group through the first built-in switch. The radio frequency transceiver is connected to the two signal receiving channels through the second built-in switch. The first built-in switch includes a double-pole four-throw (DP4T) switch, and the second built-in switch includes a double-pole three-throw (DP3T) switch. Each signal receiving channel includes a filter and a low-noise amplifier, and the low-noise amplifier is connected to the filter.

6. The system according to claim 5, characterized in that, The first receiving module also has a built-in bypass channel between the first built-in switch and the second built-in switch. The built-in bypass channel is used to connect the first transceiver module or the second transceiver module to support the signal transmission function of the first receiving module. The first receiving module also includes an auxiliary port AUX, which is connected to a T port of the first built-in switch. The AUX is used to connect the transceiver module to support the signal transmission function of the receiving module.

7. The system according to claim 5, characterized in that, The first receiving module further includes two AUX ports, which are respectively connected to the first built-in switch and the second built-in switch. An external bypass channel is set between the first built-in switch and the second built-in switch to support the signal transmission function of the first receiving module.

8. The system according to claim 5, characterized in that, The first receiving module further includes three AUXs, wherein the first AUX and the second AUX are connected to the first built-in switch, and the third AUX is connected to the second built-in switch. An external bypass circuit is set between the first AUX and the third AUX or between the second AUX and the third AUX to support the signal transmission function of the first receiving module. Alternatively, the first AUX or the second AUX is used to connect to the first transceiver module or the second transceiver module to support the signal transmission function of the first receiving module.

9. The system according to any one of claims 1-2 and 6-8, characterized in that, When both the first antenna group and the second antenna group include one antenna, the first external switching switch includes a first single-pole double-throw SPDT switch, and the second external switching switch includes a second SPDT switch; when both the first antenna group and the second antenna group include two antennas, the first external switching switch includes a first double-pole triple-throw DP3T switch, and the second external switching switch includes a second DP3T switch.

10. The system according to claim 9, characterized in that, When both the first antenna group and the second antenna group include one antenna, the antennas in both the first antenna group and the second antenna group are dual-band antennas; when both the first antenna group and the second antenna group include two antennas, the antennas in both the first antenna group and the second antenna group are single-band antennas.

11. An electronic device, characterized in that, The electronic device includes the radio frequency system as described in any one of claims 1 to 10, and includes at least one of the following: a mobile terminal and a base station.

12. An antenna switching control method applied to an electronic device, the electronic device including a radio frequency (RF) system, the RF system including an RF transceiver and an RF processing circuit connected to the RF transceiver, the RF processing circuit including a first transceiver module, a second transceiver module, a first receiving module, and a second receiving module; the first transceiver module is configured to establish a connection path with a first antenna group through a first external switching switch, the second transceiver module is configured to establish a connection path with a second antenna group through a second external switching switch, the first receiving module is configured to establish a connection path with a third antenna group, and the second receiving module is configured to establish a connection path with a fourth antenna group; Configure the first external switching switch to establish a connection path with the second external switching switch, configure the first transceiver module to establish a connection path with the second antenna group through the first external switching switch and the second external switching switch, establish a connection path with the third antenna group through the second transceiver module and the first receiving module, and establish a connection path with the fourth antenna group through the second receiving module, so that the first transceiver module can achieve 1T4R SRS switching through the first antenna group, the second antenna group, the third antenna group and the fourth antenna group; The second transceiver module is configured to establish a connection path with the third antenna group through the first receiving module, so that the first transceiver module can achieve 1T2R SRS switching through the first antenna group and the fourth antenna group; the second transceiver module is configured to achieve 1T2R SRS switching through the second antenna group and the third antenna group; wherein, The 1T2R SRS switching of the first transceiver module and the 1T2R SRS switching of the second transceiver module together form a 2T4R SRS switching.

13. The method according to claim 12, characterized in that, The method further includes: Configure the receiving port of the target frequency band of the radio frequency transceiver to be connected to the receiving path of the target antenna group, so that the radio frequency transceiver can receive signals through the antenna in the target antenna group to realize the downlink carrier aggregation function of the radio frequency system.

14. The method according to any one of claims 12-13, characterized in that, When both the first antenna group and the second antenna group include one antenna, the first external switching switch includes a first single-pole double-throw SPDT switch, and the second external switching switch includes a second SPDT switch; when both the first antenna group and the second antenna group include two antennas, the first external switching switch includes a first double-pole triple-throw DP3T switch, and the second external switching switch includes a second DP3T switch.

15. An antenna switching control device, applied to an electronic device, the electronic device including a radio frequency (RF) system, the RF system including an RF transceiver and an RF processing circuit connected to the RF transceiver, the RF processing circuit including a first transceiver module, a second transceiver module, a first receiving module, and a second receiving module; the first transceiver module is configured to establish a connection path with a first antenna group via a first external switching switch, the second transceiver module is configured to establish a connection path with a second antenna group via a second external switching switch, the first receiving module is configured to establish a connection path with a third antenna group, and the second receiving module is configured to establish a connection path with a fourth antenna group; the antenna switching control device includes a processing unit and a communication unit, wherein... The processing unit is configured to establish a connection path between the first external switching switch and the second external switching switch through the communication unit, configure the first transceiver module to establish a connection path with the second antenna group through the first external switching switch and the second external switching switch, establish a connection path with the third antenna group through the second transceiver module and the first receiving module, and establish a connection path with the fourth antenna group through the second receiving module, so that the first transceiver module can achieve 1T4R SRS switching through the first antenna group, the second antenna group, the third antenna group and the fourth antenna group; The processing unit is further configured to configure the second transceiver module to establish a connection path with the third antenna group through the first receiving module via the communication unit, so that the first transceiver module can achieve 1T2R SRS switching through the first antenna group and the fourth antenna group, and configure the second transceiver module to achieve 1T2R SRS switching through the second antenna group and the third antenna group; wherein, the 1T2R SRS switching of the first transceiver module and the 1T2R SRS switching of the second transceiver module together form 2T4R SRS switching.

16. An electronic device, characterized in that, The method includes a processor, a memory, a communication interface, and one or more programs, said one or more programs being stored in the memory and configured to be executed by the processor, said programs including instructions for performing the steps of the method as described in any one of claims 12 to 14.

17. A computer-readable storage medium, characterized in that, A computer program for storing electronic data interchange is provided, wherein the computer program causes a computer to perform the method as described in any one of claims 12 to 14.

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