Radio frequency architecture, electronic device, and signal sending method and apparatus

Abstract

The present application discloses a radio frequency architecture, an electronic device, and a signal sending method and apparatus. The radio frequency architecture comprises a transceiver, a first radio frequency module and a second radio frequency module. The first radio frequency module is connected to a first sending port of the transceiver, and the second radio frequency module is connected to a second sending port of the transceiver, wherein in a channel sounding reference signal (SRS) polling mode, the first radio frequency module and the second radio frequency module send SRSs alternately.

Description

Radio frequency architecture, electronic equipment, signal transmission method and device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on December 15, 2023, with application number 202311736101.0 and invention name “RF architecture, electronic device, signal transmission method and device”. The entire contents of the Chinese patent application are incorporated herein by reference. Technical Field

[0003] The present application belongs to the field of communication technology, and specifically relates to a radio frequency architecture, electronic equipment, and a signal transmission method and device. Background Art

[0004] Sounding Reference Signal (SRS) is a key technology in current wireless communication networks. SRS is used to measure and adapt to changes and conditions in the wireless channel. SRS is a reference signal transmitted by user equipment (UE). This signal is received by network equipment (such as base stations) and used to estimate the characteristics of the wireless channel at a specific time and location, allowing network equipment to adjust its transmission parameters (such as transmit power and modulation) to achieve better communication quality. Currently, electronic devices such as UEs generally support SRS transmission modes such as two-antenna rotation (1T2R), one-antenna rotation (1T4R), and four-antenna rotation (2T4R). However, current RF architectures typically implement SRS transmission by configuring multiple switch combinations to switch between different antenna elements. This increases insertion loss and overall channel loss when a large number of switches are configured in the channel. Summary of the Invention

[0005] The purpose of the embodiments of the present application is to provide a radio frequency architecture, electronic equipment, and a signal transmission method and apparatus that can solve the problem of large path loss in the current radio frequency architecture for implementing SRS round-robin transmission.

[0006] In a first aspect, an embodiment of the present application provides a radio frequency architecture, comprising: a transceiver, a first radio frequency module, and a second radio frequency module;

[0007] The first radio frequency module is connected to the first transmitting port of the transceiver, and the second radio frequency module is connected to the second transmitting port of the transceiver;

[0008] In which, in the channel sounding reference signal SRS polling mode, the SRS is sent alternately through the first radio frequency module and the second radio frequency module.

[0009] In a second aspect, an embodiment of the present application provides an electronic device comprising the radio frequency architecture as described above.

[0010] In a third aspect, an embodiment of the present application provides a signal transmission method, which is applied to an electronic device, wherein the radio frequency architecture of the electronic device includes a transceiver, a first radio frequency module, and a second radio frequency module, wherein the first radio frequency module is connected to the first transmitting port of the transceiver, and the second radio frequency module is connected to the second transmitting port of the transceiver; wherein the method includes:

[0011] In a channel sounding reference signal SRS polling mode, sending the SRS through the first radio frequency module;

[0012] After the first radio frequency module sends the SRS, the second radio frequency module sends the SRS.

[0013] In a fourth aspect, an embodiment of the present application provides a signal transmission device, which is applied to an electronic device, wherein the radio frequency architecture of the electronic device includes a transceiver, a first radio frequency module, and a second radio frequency module, wherein the first radio frequency module is connected to the first transmission port of the transceiver, and the second radio frequency module is connected to the second transmission port of the transceiver; wherein the device includes:

[0014] A first sending module is configured to send a channel sounding reference signal SRS through the first radio frequency module in an SRS polling mode;

[0015] The second sending module is configured to send the SRS through the second RF module after sending the SRS through the first RF module.

[0016] In a fifth aspect, an embodiment of the present application provides an electronic device, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the signal sending method described in the third aspect are implemented.

[0017] In a sixth aspect, an embodiment of the present application provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the signal sending method described in the third aspect are implemented.

[0018] In the seventh aspect, an embodiment of the present application provides a chip, which includes a processor and a communication interface, the communication interface and the processor are coupled, and the processor is used to run programs or instructions to implement the steps of the signal sending method described in the third aspect.

[0019] In an eighth aspect, an embodiment of the present application provides a computer program product, which is stored in a storage medium and is executed by at least one processor to implement the steps of the signal sending method as described in the third aspect.

[0020] In an embodiment of the present application, the first RF module is connected to the first transmitting port of the transceiver, the second RF module is connected to the second transmitting port of the transceiver, and the SRS can be independently sent through the first RF module and the second RF module to implement SRS polling, so as to avoid the increase in insertion loss caused by using the superimposed path of the first RF module and the second RF module to send SRS in the SRS polling mode, that is, reducing the insertion loss in the SRS round-robin mode, thereby solving the problem of large path loss in the current RF architecture that implements SRS round-robin transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of a radio frequency architecture;

[0022] FIG2 is a second schematic diagram of the RF architecture;

[0023] FIG3 is a schematic diagram of a radio frequency architecture according to an embodiment of the present application;

[0024] FIG4 is a flow chart of a signal sending method according to an embodiment of the present application;

[0025] FIG5 is a block diagram of a signal sending device according to an embodiment of the present application;

[0026] FIG6 is a block diagram of an electronic device according to an embodiment of the present application;

[0027] FIG7 is a schematic diagram of the hardware structure of the electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0028] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0029] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0030] The following is an introduction to the relevant technologies involved in this application:

[0031] The primary purpose of SRS is to enable network equipment (such as base stations) to accurately measure the state of wireless channels so they can adjust downlink data transmission parameters based on channel conditions. SRS provides feedback for wireless links, assisting network equipment in adjusting their transmit power and modulation schemes to improve transmission performance and reduce wireless interference. By determining optimal transmission parameters, SRS technology can increase network throughput, expand network coverage, and enhance communication quality.

[0032] Typically, a terminal can support at least one of the SRS rotation modes: 1T2R, 1T4R, and 2T4R. Compared with 1T2R, 1T4R and 2T4R have better channel status detection and estimation capabilities. When there are multiple available antennas, the antenna with the best channel quality can be selected for data transmission, thereby better utilizing the channel capacity and improving signal reliability and transmission rate.

[0033] As shown in FIG1 , a schematic diagram of a radio frequency architecture is provided, wherein a transceiver 101 includes transmitters TX0 and TX1, a receiver PRX (for receiving wireless signals from the transmitter), and a discontinuous receive terminal (DRX). MIMO indicates that the transceiver 101 has multiple input terminals and / or multiple output terminals.

[0034] The first power amplifier unit 102 is connected to TX0 and PRX of the transceiver 101, respectively. The first power amplifier unit 102 is connected to antennas Ant0 and Ant1 via a first switch 103. The first power amplifier unit 102 is also connected to antennas Ant2 and Ant3 via the first switch 103 and the second switch 104. In this way, TX0 of the transceiver 101 can be connected to four antennas via the first power amplifier unit 102, thus enabling polling and sending of SRS on the four antennas.

[0035] The second power amplifier unit 105 is connected to the TX1 and PRX MIMO of the transceiver 101 respectively, and is also connected to the antennas Ant2 and Ant3 via the second switch 104. In this way, the TX1 of the transceiver 101 can be connected to two antennas via the second power amplifier unit 105, so that polling and sending of SRS can be implemented on the two antennas.

[0036] The diversity unit 106 is connected to the DRX and DRX MIMO of the transceiver 101 respectively, and the diversity unit 106 is connected to the antennas Ant0, Ant1, Ant2, and Ant3 respectively for receiving signals.

[0037] As can be seen, the RF architecture in Figure 1 can implement both 1T2R and 1T4R SRS round-robin transmission modes. However, in 1T4R mode, when SRS is transmitted via antennas Ant0 and Ant1, only the first switch 103 is present in the path, resulting in relatively low overall insertion loss. However, when SRS is transmitted via antennas Ant2 and Ant3, the path includes not only the first switch 103 but also the second switch 104, resulting in increased insertion loss. This RF architecture limits the placement of other components during PCB layout due to the routing between the switches, and these routing lines further increase the overall insertion loss of the path.

[0038] As shown in FIG2 , a schematic diagram of another RF architecture is provided; wherein the transceiver 201 has transmitting ends TX0 and TX1, a receiving end PRX (for receiving wireless signals from the transmitting end), and a discontinuous receiving end (DRX); MIMO means that the transceiver 101 has multiple input ends and / or multiple output ends.

[0039] The first power amplifier unit 202 is connected to TX0 and PRX of the transceiver 201, respectively, and is connected to antennas Ant0 and Ant1 via a first switch 203. The first power amplifier unit 202 is also connected to antennas Ant2 and Ant3 via the first switch 203 and the second switch 204. Thus, TX0 of the transceiver 201 can be connected to four antennas via the first power amplifier unit 202, enabling round-robin SRS transmission on the four antennas.

[0040] The second power amplifier unit 205 is connected to the TX1 and PRX MIMO of the transceiver 201, and is connected to the antennas Ant2 and Ant3 via the second switch 204. The second power amplifier unit 205 is also connected to the antennas Ant0 and Ant1 via the second switch 204 and the first switch 203. In this way, the TX1 of the transceiver 201 can be connected to four antennas via the second power amplifier unit 205, thus enabling round-robin SRS transmission on the four antennas.

[0041] The diversity unit 206 is connected to the DRX and DRX MIMO of the transceiver 201 respectively, and the diversity unit 206 is connected to the antennas Ant0, Ant1, Ant2, and Ant3 respectively for receiving signals.

[0042] As can be seen, the RF architecture in Figure 2 can implement the 1T4R SRS round-robin mode for the TX0 port, as well as the 1T4R SRS round-robin mode for the TX1 port. However, in 1T4R mode, only one power amplifier module is operating. For example, taking the TX0 port as an example, when antennas Ant0 and Ant1 transmit SRS, there is only one first switch 203 in the path, and the overall insertion loss is relatively small. However, when SRS is transmitted through antennas Ant2 and Ant3, the path includes not only the first switch 203 but also the second switch 204, which will increase the insertion loss. When laying out the circuit board, this RF architecture will limit the placement of other components due to the routing design between the switches, and these routings will further increase the overall insertion loss of the path.

[0043] As shown in Figure 3, an embodiment of the present application provides a RF architecture, including: a transceiver 1, a first RF module 2 and a second RF module 3; the first RF module 2 is connected to the first transmitting port TX0 of the transceiver 1, and the second RF module 3 is connected to the second transmitting port TX1 of the transceiver 1.

[0044] In which, in the channel sounding reference signal SRS polling mode, the SRS is sent alternately by the first radio frequency module 2 and the second radio frequency module 3.

[0045] Optionally, the transceiver 1 may be a transceiver implemented based on software defined radio (SDR) technology, or may be other types of transceivers, etc., and the embodiments of the present application are not limited thereto.

[0046] Optionally, sending SRS alternately through the first RF module 2 and the second RF module 3 means that the SRS is first sent through the first RF module 2, and then the SRS is sent through the second RF module 3 after the first RF module 2 sends the SRS; or, the SRS may be first sent through the second RF module 3, and then the SRS is sent through the first RF module 2 after the second RF module 3 sends the SRS.

[0047] Taking the example of first sending an SRS through the first RF module 2 and then sending an SRS through the second RF module 3, when the SRS polling mode is started, the first transmitting port TX0 of the transceiver 1 outputs an SRS (the second transmitting port TX1 does not output an SRS at this time), and the SRS is transmitted through the first RF module 2, thus implementing the SRS transmission through the first RF module 2; then the second transmitting port TX1 of the transceiver 1 outputs an SRS (the first transmitting port TX0 does not output an SRS at this time), and the SRS is transmitted through the second RF module 3, thus implementing the SRS transmission through the second RF module 3. In this way, the SRS is first sent through the first RF module 2 and then through the second RF module 3, thus implementing SRS polling.

[0048] In this embodiment, the first RF module 2 is connected to the first transmitting port TX0 of the transceiver 1, and the second RF module 3 is connected to the second transmitting port TX1 of the transceiver 1, and the SRS can be independently sent through the first RF module 2 and the second RF module 3 to realize SRS polling, so as to avoid the increase in insertion loss caused by using the superposition (or understood as serial or series connection, etc.) path of the first RF module 2 and the second RF module 3 to send SRS in the SRS polling mode, that is, the insertion loss in the SRS round-robin mode is reduced, thereby solving the problem of large path loss in the current RF architecture that realizes SRS round-robin transmission.

[0049] Optionally, the first RF module 2 includes: a first power amplifier unit 21 and at least one first antenna unit; the first transmitting port TX0 of the transceiver 1 is connected to the at least one first antenna unit through the first power amplifier unit 21.

[0050] Among them, when the number of the first antenna units is 1, in the SRS polling mode, after the SRS is sent through the first antenna unit, the SRS is sent through the second RF module 3; when the number of the first antenna units is multiple, in the SRS polling mode, after the SRS is sent in sequence through multiple first antenna units, the SRS is sent through the second RF module 3.

[0051] For example, when the number of the first antenna unit is 1, after the SRS is sent through the first antenna unit, it is considered that the first RF module 2 has completed sending the SRS, and the SRS is further sent through the second RF module 3 to implement SRS polling.

[0052] For another example: when there are multiple first antenna units (for example, two antennas Ant0 and Ant1), sending the SRS in sequence through multiple first antenna units means first sending the SRS through antenna Ant0, and then sending the SRS through antenna Ant1, and after antenna Ant1 sends the SRS, it is considered that the first RF module 2 has completed sending the SRS, and then the SRS is further sent through the second RF module 3 to realize SRS polling.

[0053] Optionally, the first RF module 2 further includes: a first switch unit 22 ; the first power amplifier unit 21 is connected to each of the first antenna units respectively through the first switch unit 22 .

[0054] In the SRS polling mode, the first switch unit 22 switches between multiple conduction states in sequence, and in different conduction states, the first power amplifier unit 21 is connected to different first antenna units through the first switch unit 22.

[0055] For example, taking the case where the number of first antenna units is 2, including antennas Ant0 and Ant1, the first switch unit 22 has at least a first conduction state and a second conduction state. In the first conduction state, the first power amplifier unit 21 is connected to the antenna Ant0 through the first switch unit 22, and the first power amplifier unit 21 is disconnected from the antenna Ant1, that is, the SRS is sent through the antenna Ant0. In the second conduction state, the first power amplifier unit 21 is connected to the antenna Ant1 through the first switch unit 22, and the first power amplifier unit 21 is disconnected from the antenna Ant0, that is, the SRS is sent through the antenna Ant1. In this way, when the first switch unit 22 switches between the first conduction state and the second conduction state in sequence (for example, the first switch unit 22 first switches to the first conduction state and then switches to the second conduction state), the SRS polling of the two antennas in the first RF module 2 is realized.

[0056] Optionally, the first switch unit 22 may be a double-pole double-throw switch.

[0057] Optionally, the first RF module 2 is further connected to the first receiving feedback port PRX of the transceiver 1 for receiving a signal from the first transmitting port TX0.

[0058] Optionally, the second RF module 3 includes: a second power amplifier unit 31 and at least one second antenna unit; the second transmitting port TX1 of the transceiver 1 is connected to the at least one second antenna unit through the second power amplifier unit 31 .

[0059] Among them, when the number of the second antenna unit is 1, in the SRS polling mode, after the SRS is sent through the first RF module 2, the SRS is sent through the second antenna unit; when the number of the second antenna units is multiple, in the SRS polling mode, after the SRS is sent through the first RF module 2, the SRS is sent in sequence through multiple second antenna units.

[0060] For example, when the number of the second antenna unit is 1, after the SRS is sent through the second antenna unit, it is considered that the second RF module 3 has completed sending the SRS, and it is confirmed that one round of SRS sending is achieved.

[0061] For another example: when there are multiple second antenna units (for example, two antennas Ant2 and Ant3), sending the SRS in sequence through multiple second antenna units means first sending the SRS through antenna Ant2, and then sending the SRS through antenna Ant3, and after antenna Ant3 sends the SRS, it is considered that the second RF module 3 has completed sending the SRS, and then it is confirmed that a round of SRS sending is achieved.

[0062] Optionally, the first RF module 2 further includes: a second switch unit 32 ; the second power amplifier unit 31 is connected to each of the second antenna units respectively through the second switch unit 32 .

[0063] In the SRS polling mode, the second switch unit 32 switches between multiple conduction states in sequence, and in different conduction states, the second power amplifier unit 31 is connected to different second antenna units through the second switch unit 32.

[0064] For example, taking the second antenna unit as 2, including antennas Ant2 and Ant3, the second switch unit 32 has at least a first conduction state and a second conduction state. In the first conduction state, the second power amplifier unit 31 is connected to the antenna Ant2 through the second switch unit 32, and the second power amplifier unit 31 is disconnected from the antenna Ant3, that is, the SRS is sent through the antenna Ant2. In the second conduction state, the second power amplifier unit 31 is connected to the antenna Ant3 through the second switch unit 32, and the second power amplifier unit 31 is disconnected from the antenna Ant2, that is, the SRS is sent through the antenna Ant3. In this way, when the second switch unit 32 switches between the first conduction state and the second conduction state in sequence (for example, the second switch unit 32 first switches to the first conduction state and then switches to the second conduction state), the SRS polling of the two antennas in the second RF module 3 is realized.

[0065] Optionally, the second switch unit 32 may be a double-pole double-throw switch.

[0066] Optionally, the second RF module 3 is further connected to the second receiving feedback port PRX MIMO of the transceiver 1 to receive signals from the second transmitting port TX1.

[0067] For example, when the first RF module 2 includes a first antenna unit and the second RF module 3 includes a second antenna unit, the SRS can be sent independently by the first RF module 2 and the second RF module 3 to realize the SRS rotation mode of the two antennas. This can avoid the increase in insertion loss caused by using the superimposed path of the first RF module 2 and the second RF module 3 to send SRS in the SRS rotation mode of the two antennas, that is, reducing the insertion loss in the SRS rotation mode of the two antennas, thereby solving the problem of large path loss in the current RF architecture for realizing SRS rotation.

[0068] For another example, when the first RF module 2 includes two first antenna units and the second RF module 3 includes two second antenna units, the SRS can be sent independently by the first RF module 2 and the second RF module 3 to realize the SRS rotation mode of two antennas and four antennas (for example, after the SRS is first sent through a first antenna unit in the first RF module 2, the SRS is sent through a second antenna unit in the second RF module 3, that is, the SRS rotation of two antennas is realized; for example, after the SRS is first sent in sequence through the two first antenna units in the first RF module 2, the SRS is then sent in sequence through the two second antenna units in the second RF module 3, that is, the SRS rotation of four antennas is realized). In this way, the increase in insertion loss caused by using the superimposed path of the first RF module 2 and the second RF module 3 to send SRS in the SRS rotation mode of two antennas and four antennas can be avoided, that is, the insertion loss in the SRS rotation mode of two antennas and four antennas is reduced, thereby solving the problem of large path loss in the current RF architecture for realizing SRS rotation.

[0069] Optionally, the RF architecture also includes: a diversity unit 4; the input end of the diversity unit 4 is connected to each first antenna unit respectively through the first switch unit 22, and / or the input end of the diversity unit 4 is connected to each second antenna unit respectively through the second switch unit 32; the output end of the diversity unit 4 is connected to the signal receiving end DRX of the transceiver 1.

[0070] In this embodiment, diversity unit 4 is connected to the first antenna unit and / or the second antenna unit to implement signal reception. Furthermore, diversity unit 4 is connected to the first antenna unit by reusing first switch unit 22 and / or is connected to the second antenna unit by reusing second switch unit 32. This reduces the number of switches in the RF architecture, saves circuit board design space, and facilitates circuit board layout.

[0071] Optionally, the transceiver 1 may include multiple signal receiving ends DRX, and the diversity unit 4 may be connected to the multiple signal receiving ends DRX, that is, to achieve multi-path reception.

[0072] An embodiment of the present application provides an electronic device, including the radio frequency architecture described above.

[0073] It should be noted that the electronic device of the embodiment of the present application can implement each embodiment of the above-mentioned radio frequency architecture and can achieve the same technical effect. To avoid repetition, it will not be described here.

[0074] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0075] Although preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they become aware of the basic inventive concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0076] Finally, it should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or terminal device that includes a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or terminal device. In the absence of further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes the element.

[0077] The signal sending method provided in the embodiment of the present application is described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0078] As shown in Figure 4, an embodiment of the present application provides a signal sending method, which is applied to an electronic device. As shown in Figure 3, the RF architecture of the electronic device includes: a transceiver 1, a first RF module 2 and a second RF module 3. The first RF module 2 is connected to the first transmitting port TX0 of the transceiver 1, and the second RF module 3 is connected to the second transmitting port TX1 of the transceiver 1.

[0079] The method comprises the following steps:

[0080] Step 41: In SRS polling mode, the first radio frequency module sends an SRS.

[0081] Step 42: After the first RF module sends the SRS, the second RF module sends the SRS.

[0082] Optionally, the transceiver 1 may be a transceiver implemented based on software defined radio (SDR) technology, or may be other types of transceivers, etc., and the embodiments of the present application are not limited thereto.

[0083] Taking transceiver 1 as an SDR transceiver, when SRS polling mode is enabled, the first transmit port TX0 of transceiver 1 can be controlled based on SDR technology to output an SRS, which is then transmitted through the first RF module 2, thereby transmitting the SRS through the first RF module 2. The second transmit port TX1 of transceiver 1 is then controlled to output an SRS, which is then transmitted through the second RF module 3, thereby transmitting the SRS through the second RF module 3. In this way, the SRS is first transmitted through the first RF module 2, and then through the second RF module 3, thereby implementing SRS polling.

[0084] In this embodiment, the first RF module 2 is connected to the first transmitting port TX0 of the transceiver 1, the second RF module 3 is connected to the second transmitting port TX1 of the transceiver 1, and the SRS is first sent through the first RF module 2 and then sent through the second RF module 3, that is, the SRS is independently sent by the first RF module 2 and the second RF module 3 to realize SRS polling, so as to avoid the increase in insertion loss caused by using the superposition (or understood as serial or series connection, etc.) path of the first RF module 2 and the second RF module 3 to send SRS in the SRS polling mode, that is, the insertion loss in the SRS round-robin mode is reduced, thereby solving the problem of large path loss in the current RF architecture for realizing SRS round-robin transmission.

[0085] Optionally, the signal sending method further includes at least one of the following:

[0086] In the case where the SRS is sent through the first radio frequency module 2, the second radio frequency module 3 is controlled to be in a standby state; wherein the second radio frequency module 3 does not send the SRS in the standby state;

[0087] When the SRS is sent through the second RF module 3 , the first RF module 2 is controlled to be in a standby state; wherein, the first RF module 2 does not send the SRS in the standby state.

[0088] Continuing to use transceiver 1 as an SDR transceiver as an example, when the SRS polling mode is started, the first transmitting port TX0 of the transceiver 1 can be controlled based on the SDR technology to output the SRS, and the second transmitting port TX1 can be controlled not to output the SRS. In this way, only the first RF module 2 transmits the SRS, while the second RF module 3 does not transmit the SRS (i.e., the second RF module 3 is in the standby state), that is, the SRS is transmitted solely by the first RF module 2. Correspondingly, based on the SDR technology, the second transmitting port TX1 of the transceiver 1 can also be controlled to output the SRS, and the first transmitting port TX0 can be controlled not to output the SRS. In this way, only the second RF module 3 transmits the SRS, while the first RF module 2 does not transmit the SRS (i.e., the first RF module 2 is in the standby state), that is, the SRS is transmitted solely by the second RF module 3. In this way, the SRS is first transmitted solely by the first RF module 2, and then transmitted solely by the second RF module 3, that is, SRS polling is implemented.

[0089] Optionally, controlling the second radio frequency module to be in a standby state includes:

[0090] By enabling the second radio frequency module 3, the second radio frequency module 3 is controlled to be in a standby state; wherein the second radio frequency module 3 supports sending digital signals other than the SRS in the standby state;

[0091] and / or,

[0092] The controlling the first radio frequency module 2 to be in a standby state includes:

[0093] By enabling the first RF module 2, the first RF module 2 is controlled to be in a standby state; wherein, the second RF module 3 supports sending digital signals other than the SRS in the standby state.

[0094] Continuing to take the transceiver 1 as an SDR transceiver as an example, when the SRS polling mode is started, the second transmitting port TX1 of the transceiver 1 can be controlled not to output SRS based on the SDR technology (that is, the second RF module 3 is in standby mode). When the second RF module 3 is in standby mode, since the various devices in the second RF module 3 are enabled, when the second transmitting port TX1 of the transceiver 1 is controlled based on the SDR technology to output other digital signals except SRS, the digital signal can be transmitted through the second RF module 3. Correspondingly, the first transmitting port TX0 of the transceiver 1 can also be controlled not to output SRS based on the SDR technology (that is, the first RF module 2 is in standby mode). When the first RF module 2 is in standby mode, since the various devices in the first RF module 2 are enabled, when the first transmitting port TX0 of the transceiver 1 is controlled based on the SDR technology to output other digital signals except SRS, the digital signal can be transmitted through the first RF module 2.

[0095] Optionally, the first RF module 2 and / or the second RF module 3 may include but are not limited to: a power amplifier (PA), an antenna switch module (ASM), etc.

[0096] It should be noted that the method of the embodiment of the present application and the above-mentioned radio frequency architecture are based on the same concept, and the embodiments of the two can refer to each other. To avoid repetition, they will not be described here.

[0097] Taking a terminal as an example, the specific process of the signal sending method in an embodiment of the present application is described:

[0098] Combined with the RF architecture of Figure 3, the four antennas Ant0, Ant1, Ant2, and Ant3 are divided into two groups, that is, Ant0 and Ant1 on the TX0 path are divided into one group of antennas and marked with SRS resource ID 0 (SRS resource ID 0); Ant2 and Ant3 on the TX1 path are divided into another group of antennas and marked with SRS resource ID 1 (SRS resource ID 1).

[0099] The specific process includes:

[0100] 1. The terminal reports the 1T4R SRS capability to the base station in the real network;

[0101] 2. The terminal calls up the radio frequency resources related to 1T4R SRS to send SRS;

[0102] 3. The terminal first performs SRS polling on a group of antennas corresponding to SRS resource ID 0, that is, using Ant0 and Ant1 to poll and send SRS;

[0103] When the terminal performs SRS polling on a group of antennas corresponding to SRS resource ID 0, the PA, ASM and other devices on the corresponding TX0 path are enabled (i.e., the first power amplifier unit 21 and the first switch unit 22 in Figure 3 are enabled). During this period, the PA, ASM and other devices on the TX1 path can also be enabled (i.e., the second power amplifier unit 31 and the second switch unit 32 in Figure 3 are enabled), but the transceiver 1 does not perform SRS polling on the TX1 path in digital transmission mode, but can support the transmission of other digital signals besides SRS (i.e., the TX1 path is on standby, waiting for the TX0 path to complete the SRS polling).

[0104] 4. The terminal then performs SRS polling on a group of antennas corresponding to SRS resource ID 1, i.e., uses Ant2 and Ant3 to poll and send SRS;

[0105] When the terminal performs SRS polling on a group of antennas corresponding to SRS resource ID 1, the PA, ASM and other devices on the corresponding TX1 path are enabled (i.e., the second power amplifier unit 31 and the second switch unit 32 in Figure 3 are enabled). During this period, the PA, ASM and other devices on the TX1 path can also be enabled (i.e., the first power amplifier unit 21 and the first switch unit 22 in Figure 3 are enabled), but the transceiver 1 does not perform SRS polling on the TX0 path in digital transmission mode, but can support the transmission of other digital signals besides SRS (i.e., the TX0 path is on standby, waiting for the TX1 path to complete the SRS polling).

[0106] 5. The terminal completes the SRS polling of 1T4R.

[0107] In the embodiment of the present application, two TX paths are used to transmit SRS in rotation (TX hopping), and the four antennas are grouped into two groups, forming two 1T2Rs. When one power amplifier (such as the first power amplifier unit 21) is working, the SRS is transmitted in rotation on a group of antennas corresponding to the SRS resource ID 0; after the rotation is completed, it switches to another power amplifier (such as the second power amplifier unit 31) to work, and the SRS is transmitted in rotation on a group of antennas corresponding to the SRS resource ID 1. At this time, since the SRS is switched to the second power amplifier unit 31 for rotation, it only needs to pass through the second switch unit 32 (such as DPDT) instead of the first switch unit 22 (such as DPDT). Therefore, when implementing the SRS rotation operation of 1T4R, the path insertion loss can be reduced, and the related restrictions on device layout are reduced, making the layout more flexible. In addition, this solution can reduce the path insertion loss by about 2.5 to 3 dB and increase the downlink throughput by about 50%.

[0108] The signal sending method provided in the embodiment of the present application can be executed by a signal sending device. In the embodiment of the present application, the signal sending device provided in the embodiment of the present application is described by taking the signal sending method executed by the signal sending device as an example.

[0109] As shown in FIG5 , an embodiment of the present application provides a signal transmitting device 500, which is applied to an electronic device. The radio frequency architecture of the electronic device includes a transceiver, a first radio frequency module, and a second radio frequency module. The first radio frequency module is connected to the first transmitting port of the transceiver, and the second radio frequency module is connected to the second transmitting port of the transceiver. The device 500 includes:

[0110] A first sending module 510 is configured to send a channel sounding reference signal (SRS) through the first radio frequency module in an SRS polling mode;

[0111] The second sending module 520 is configured to send the SRS through the second RF module after sending the SRS through the first RF module.

[0112] Optionally, the signal sending device 500 further includes at least one of the following:

[0113] a first control module, configured to control the second radio frequency module to be in a standby state when the SRS is sent through the first radio frequency module; wherein the second radio frequency module does not send the SRS in the standby state;

[0114] The second control module is used to control the first RF module to be in a standby state when the SRS is sent through the second RF module; wherein the first RF module does not send the SRS in the standby state.

[0115] Optionally, the first control module includes:

[0116] a first control unit, configured to control the second radio frequency module to be in a standby state by enabling the second radio frequency module; wherein the second radio frequency module supports sending digital signals other than the SRS in the standby state;

[0117] and / or,

[0118] The second control module includes:

[0119] The second control unit is used to control the first RF module to be in a standby state by enabling the first RF module; wherein, the first RF module supports sending digital signals other than the SRS in the standby state.

[0120] The device in the embodiment of the present application is connected to the first transmitting port of the transceiver through the first RF module, and the second RF module is connected to the second transmitting port of the transceiver, and the SRS is first sent through the first RF module, and then sent through the second RF module, that is, the SRS is independently sent through the first RF module and the second RF module to realize SRS polling, so as to avoid the increase in insertion loss caused by using the superposition (or understood as serial or series connection, etc.) path of the first RF module and the second RF module to send SRS in the SRS polling mode, that is, the insertion loss in the SRS round-robin mode is reduced, thereby solving the problem of large path loss in the current RF architecture for realizing SRS round-robin transmission.

[0121] The signal sending device in the embodiment of the present application can be an electronic device, or a component in the electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal, or a device other than a terminal. For example, the electronic device can be a mobile phone, a tablet computer, a laptop computer, a PDA, an in-vehicle electronic device, a mobile Internet device (MID), an augmented reality (AR) / virtual reality (VR) device, a robot, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a personal digital assistant (PDA), etc. It can also be a server, a network attached storage (NAS), a personal computer (PC), a television (TV), a teller machine or a self-service machine, etc., and the embodiment of the present application does not specifically limit it.

[0122] The signal transmitting device in the embodiment of the present application may be a device having an operating system. The operating system may be an Android operating system, an iOS operating system, or other possible operating systems, which are not specifically limited in the embodiment of the present application.

[0123] The signal sending device provided in the embodiment of the present application can implement each process implemented in the method embodiment of Figure 4. To avoid repetition, they will not be described here.

[0124] Optionally, as shown in Figure 6, an embodiment of the present application also provides an electronic device 600, including a processor 601 and a memory 602, and the memory 602 stores a program or instruction that can be run on the processor 601. When the program or instruction is executed by the processor 601, the various steps of the above-mentioned signal sending method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0125] It should be noted that the electronic devices in the embodiments of the present application include the mobile electronic devices and non-mobile electronic devices mentioned above.

[0126] FIG7 is a schematic diagram of the hardware structure of an electronic device implementing an embodiment of the present application.

[0127] The electronic device 700 includes but is not limited to components such as a radio frequency unit 701 , a network module 702 , an audio output unit 703 , an input unit 704 , a sensor 705 , a display unit 706 , a user input unit 707 , an interface unit 708 , a memory 709 , and a processor 710 .

[0128] Optionally, the RF unit 701 (or RF architecture) includes a transceiver, a first RF module and a second RF module, the first RF module is connected to the first transmitting port of the transceiver, and the second RF module is connected to the second transmitting port of the transceiver.

[0129] Those skilled in the art will appreciate that the electronic device 700 may further include a power source (e.g., a battery) to power various components. The power source may be logically connected to the processor 710 via a power management system, thereby enabling the power management system to manage charging, discharging, and power consumption. The electronic device structure shown in FIG7 does not limit the electronic device. The electronic device may include more or fewer components than shown, or may combine certain components or arrange the components differently, which will not be described in detail here.

[0130] The processor 710 is configured to: in a channel sounding reference signal SRS polling mode, send the SRS through the first radio frequency module; and after the first radio frequency module sends the SRS, send the SRS through the second radio frequency module.

[0131] Optionally, the processor 710 is further configured to perform at least one of the following:

[0132] When the SRS is sent through the first radio frequency module, controlling the second radio frequency module to be in a standby state; wherein the second radio frequency module does not send the SRS in the standby state;

[0133] When the SRS is sent through the second RF module, the first RF module is controlled to be in a standby state; wherein, the first RF module does not send the SRS in the standby state.

[0134] Optionally, the processor 710 is further configured to:

[0135] Controlling the second radio frequency module to be in a standby state by enabling the second radio frequency module; wherein the second radio frequency module supports sending digital signals other than the SRS in the standby state;

[0136] and / or,

[0137] By enabling the first RF module, the first RF module is controlled to be in a standby state; wherein, the second RF module supports sending digital signals other than the SRS in the standby state.

[0138] The electronic device in the embodiment of the present application is connected to the first transmitting port of the transceiver through the first RF module, and the second RF module is connected to the second transmitting port of the transceiver, and the SRS is first sent through the first RF module and then sent through the second RF module, that is, the SRS is independently sent through the first RF module and the second RF module to realize SRS polling, so as to avoid the increase in insertion loss caused by using the superposition (or understood as serial or series connection, etc.) path of the first RF module and the second RF module to send SRS in the SRS polling mode, that is, the insertion loss in the SRS round-robin mode is reduced, thereby solving the problem of large path loss in the current RF architecture for realizing SRS round-robin transmission.

[0139] It should be understood that in an embodiment of the present application, the input unit 704 may include a graphics processing unit (GPU) 7041 and a microphone 7042, and the graphics processor 7041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 707 includes a touch panel 7071 and at least one of other input devices 7072. The touch panel 7071 is also called a touch screen. The touch panel 7071 may include two parts: a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and an operating stick, which will not be repeated here.

[0140] The memory 709 can be used to store software programs and various data. The memory 709 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 709 may include a volatile memory or a non-volatile memory, or the memory 709 may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM), and a direct memory bus random access memory (DRRAM). The memory 709 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0141] Processor 710 may include one or more processing units. Optionally, processor 710 integrates an application processor and a modem processor. The application processor primarily handles operations related to the operating system, user interface, and application programs, while the modem processor primarily processes wireless communication signals, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 710.

[0142] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned signal sending method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0143] The processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0144] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned signal sending method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0145] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0146] An embodiment of the present application provides a computer program product, which is stored in a storage medium. The program product is executed by at least one processor to implement the various processes of the above-mentioned signal sending method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0147] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0148] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), including a number of instructions for enabling a terminal (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in each embodiment of the present application.

[0149] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A radio frequency architecture, comprising: A transceiver, a first radio frequency module and a second radio frequency module; The first radio frequency module is connected to the first transmission port of the transceiver, and the second radio frequency module is connected to the second transmission port of the transceiver; In which, in the channel sounding reference signal SRS polling mode, the SRS is sent alternately by the first radio frequency module and the second radio frequency module.

2. The radio frequency architecture according to claim 1, wherein: The first radio frequency module includes: a first power amplifier unit and at least one first antenna unit; The first transmitting port of the transceiver is connected to the at least one first antenna unit through the first power amplifier unit; Wherein, when the number of the first antenna unit is 1, in the SRS polling mode, after the SRS is sent through the first antenna unit, the SRS is sent through the second radio frequency module; In the case where there are multiple first antenna units, in the SRS polling mode, after the SRS is sent in sequence through the multiple first antenna units, the SRS is sent through the second RF module.

3. The radio frequency architecture according to claim 2, wherein: The first radio frequency module further includes: a first switch unit; The first power amplifier unit is respectively connected to each of the first antenna units through the first switch unit; Wherein, in the SRS polling mode, the first switch unit switches between a plurality of conduction states in sequence, and in different conduction states, the first power amplifier unit is conducted to different first antenna units through the first switch unit.

4. The radio frequency architecture according to claim 1, wherein: The second radio frequency module includes: a second power amplifier unit and at least one second antenna unit; The second transmitting port of the transceiver is connected to the at least one second antenna unit through the second power amplifier unit; Wherein, when the number of the second antenna unit is 1, in the SRS polling mode, after the SRS is sent by the first radio frequency module, the SRS is sent by the second antenna unit; When there are multiple second antenna units, in the SRS polling mode, after the SRS is sent through the first RF module, the SRS is sent in sequence through the multiple second antenna units.

5. The radio frequency architecture according to claim 4, wherein: The first radio frequency module further includes: a second switch unit; The second power amplifier unit is respectively connected to each of the second antenna units through the second switch unit; Wherein, in the SRS polling mode, the second switch unit switches between a plurality of conduction states in sequence, and in different conduction states, the second power amplifier unit is conducted to different second antenna units through the second switch unit.

6. The radio frequency architecture according to claim 3 or 5, wherein: Also includes: Diversity unit; The input end of the diversity unit is connected to each first antenna unit through the first switch unit, and / or the input end of the diversity unit is connected to each second antenna unit through the second switch unit; The output end of the diversity unit is connected to the signal receiving end of the transceiver.

7. An electronic device, comprising the radio frequency architecture according to any one of claims 1 to 6.

8. A signal transmission method, applied to an electronic device, wherein the radio frequency architecture of the electronic device comprises a transceiver, a first radio frequency module and a second radio frequency module, wherein the first radio frequency module is connected to a first transmission port of the transceiver, and the second radio frequency module is connected to a second transmission port of the transceiver; wherein: The method comprises: In a channel sounding reference signal SRS polling mode, sending the SRS through the first radio frequency module; After the first RF module sends the SRS, the SRS is sent through the second RF module.

9. The signal transmission method according to claim 8, wherein: Also includes at least one of the following: In the case where the SRS is sent through the first radio frequency module, controlling the second radio frequency module to be in a standby state; wherein the second radio frequency module does not send the SRS in the standby state; In the case where the SRS is sent through the second RF module, the first RF module is controlled to be in a standby state; wherein the first RF module does not send the SRS in the standby state.

10. The signal transmission method according to claim 9, wherein: The controlling the second radio frequency module to be in a standby state includes: By enabling the second radio frequency module, controlling the second radio frequency module to be in a standby state; wherein the second radio frequency module supports sending digital signals other than the SRS in the standby state; and / or, The controlling the first radio frequency module to be in a standby state includes: The first RF module is controlled to be in a standby state by enabling the first RF module; wherein the second RF module supports sending digital signals other than the SRS in the standby state.

11. A signal sending device, applied to an electronic device, wherein the radio frequency architecture of the electronic device comprises a transceiver, a first radio frequency module and a second radio frequency module, wherein the first radio frequency module is connected to a first sending port of the transceiver, and the second radio frequency module is connected to a second sending port of the transceiver; wherein: The device comprises: A first sending module, configured to send a channel sounding reference signal SRS through the first radio frequency module in a channel sounding reference signal SRS polling mode; The second sending module is used to send the SRS through the second radio frequency module after sending the SRS through the first radio frequency module.

12. The signal transmitting device according to claim 11, wherein: Also includes at least one of the following: A first control module is used to control the second radio frequency module to be in a standby state when the SRS is sent through the first radio frequency module; wherein the second radio frequency module does not send the SRS in the standby state; The second control module is used to control the first RF module to be in a standby state when the SRS is sent through the second RF module; wherein the first RF module does not send the SRS in the standby state.

13. The signal transmitting device according to claim 12, wherein: The first control module comprises: A first control unit, configured to control the second radio frequency module to be in a standby state by enabling the second radio frequency module; wherein the second radio frequency module supports sending digital signals other than the SRS in the standby state; and / or, The second control module includes: The second control unit is used to control the first RF module to be in a standby state by enabling the first RF module; wherein the first RF module supports sending digital signals other than the SRS in the standby state.

14. An electronic device, comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the signal sending method according to any one of claims 8 to 10 are implemented.

15. A readable storage medium storing a program or an instruction, wherein the program or the instruction, when executed by a processor, implements the steps of the signal sending method according to any one of claims 8 to 10.

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