CN115361035A - Radio frequency system, communication device, communication control method, and communication control apparatus - Google Patents

Abstract

The present application relates to a radio frequency system, a communication device, a communication control method, and a communication control device. The radio frequency system includes a first processing circuit and a first switching circuit, and the first switching circuit enables the first processing circuit to be switchably connected to the first antenna and the first switching circuit. The second antenna; a selectable attenuation channel is provided on the path between the first common terminal and the first switching terminal in the first switching circuit, and the attenuation channel is configured to attenuate the power of the first radio frequency signal. When the attenuation channel is in the off state, the first path insertion loss value from the first antenna end to the first antenna is smaller than the second path insertion loss value from the first antenna end to the second antenna; when the target antenna is the first antenna and the second When an antenna terminal is in a signal transmitting state, the first switching circuit is also configured to gate the attenuation channel, so that both the first antenna and the second antenna can transmit the first radio frequency signal at a power within a preset power range, so as to improve the first radio frequency signal. The problem of power imbalance when switching between the antenna and the second antenna improves the communication performance of the radio frequency system.

Description

Radio frequency system, communication equipment, communication control method, and communication control device

technical field

The present application relates to the technical field of antennas, and in particular to a radio frequency system, communication equipment, a communication control method and a communication control device.

Background technique

With the development of radio frequency technology, the application of multi-antenna switching in radio frequency system is more and more extensive. However, during multi-antenna switching, it is difficult to ensure that different antennas can output the same power due to layout limitations of communication devices, resulting in a power imbalance problem during multi-antenna switching.

Contents of the invention

Embodiments of the present application provide a radio frequency system, communication equipment, a communication control method, and a communication control device, which can improve the problem of power imbalance during multi-antenna switching.

The first aspect of the present application provides a radio frequency system, including:

A first processing circuit, connected to the first antenna end, the first processing circuit is configured to support the transmission processing of the first radio frequency signal;

The first switching circuit is configured with a first common terminal, a first switching terminal and a second switching terminal, the first common terminal is connected to the first antenna terminal, the first switching terminal is connected to the first antenna, The second switching end is connected to the second antenna, and a selectable attenuation channel is provided on the path between the first common end and the first switching end, and the attenuation channel is configured to attenuate the first radio frequency power of a signal, the first switching circuit is configured to gate a path between the first antenna end and a target antenna, the target antenna comprising one of the first antenna and the second antenna;

Wherein, when the attenuation channel is in the off state, the first path insertion loss value from the first antenna end to the first antenna is smaller than the second path insertion loss value from the first antenna end to the second antenna. loss value; when the target antenna is the first antenna and the first antenna end is in a signal transmitting state, the first switching circuit is further configured to gate the attenuation channel so that the Both the first antenna and the second antenna can transmit the first radio frequency signal at a power within a preset power range.

The second aspect of the present application provides a communication control method, which is applied to a communication device with the radio frequency system as described above, including:

acquiring current scene information of the communication device;

determining the target antenna connected to the first antenna terminal according to the scene information, where the target antenna includes one of a first antenna and a second antenna;

When the target antenna is the first antenna and the first antenna end is in a signal transmitting state, control the first switching circuit to select the attenuation channel, so that the first antenna and the The second antennas all transmit the first radio frequency signal with a power within a preset power range.

The third aspect of the present application provides a communication control device, which is applied to a communication device having the radio frequency system as described above, the communication control device is used to obtain the current scene information of the communication device; and determine according to the scene information The target antenna connected to the first antenna end, the target antenna includes one of a first antenna and a second antenna; when the target antenna is the first antenna and the first antenna end is in a signal In the case of a transmitting state, the first switching circuit is controlled to select the attenuation channel, so that both the first antenna and the second antenna transmit the first radio frequency signal with a power within a preset power range.

The fourth aspect of the present application provides a communication device, including:

RF system as described above.

The fifth aspect of the present application provides a communication device, including a memory and a processor, where a computer program is stored in the memory, and when the computer program is executed by the processor, the processor performs the communication as described above. The steps of the control method.

The sixth aspect of the present application provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the above-mentioned communication control method are implemented.

The above-mentioned radio frequency system, communication equipment, communication control method, and communication control device, wherein the radio frequency system includes a first processing circuit and a first switching circuit, and the first switching circuit enables the first processing circuit to be switchably connected to the first antenna and the second antenna ; A selectable attenuation channel is provided on the path between the first common terminal and the first switching terminal in the first switching circuit, and the attenuation channel is configured to attenuate the power of the first radio frequency signal. When the attenuation channel is in the off state, the first path insertion loss value from the first antenna end to the first antenna is smaller than the second path insertion loss value from the first antenna end to the second antenna; when the target antenna is the first antenna and the second When an antenna terminal is in a signal transmitting state, the first switching circuit is also configured to gate the attenuation channel, so that both the first antenna and the second antenna can transmit the first radio frequency signal at a power within a preset power range, thereby improving The problem of power imbalance when switching between the first antenna and the second antenna improves the communication performance of the radio frequency system.

Description of drawings

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

Fig. 1 is one of structural block diagrams of the radio frequency system of an embodiment;

Fig. 2 is the second structural block diagram of the radio frequency system of an embodiment;

Fig. 3 is the third structural block diagram of the radio frequency system of an embodiment;

Fig. 4 is the fourth structural block diagram of the radio frequency system of an embodiment;

Fig. 5 is the fifth structural block diagram of the radio frequency system of an embodiment;

Fig. 6 is the sixth structural block diagram of the radio frequency system of an embodiment;

Fig. 7 is the seventh structural block diagram of the radio frequency system of an embodiment;

FIG. 8 is an eighth structural block diagram of a radio frequency system according to an embodiment;

FIG. 9 is a ninth structural block diagram of a radio frequency system according to an embodiment;

Fig. 10 is the tenth structural block diagram of the radio frequency system of an embodiment;

Fig. 11 is the eleventh structural block diagram of the radio frequency system of an embodiment;

FIG. 12 is one of the flowcharts of the communication control method of an embodiment;

FIG. 13 is the second flowchart of the communication control method of an embodiment;

FIG. 14 is the third flowchart of the communication control method of an embodiment;

FIG. 15 is a fourth flowchart of a communication control method in an embodiment;

FIG. 16 is the fifth flowchart of the communication control method of an embodiment;

Fig. 17 is a structural block diagram of a communication device in an embodiment.

Detailed ways

In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not configured to limit the present application.

It can be understood that the terms "first", "second", etc. used in the present application may be configured herein to describe various elements, but these elements are not limited by these terms. These terms are only configured to distinguish one element from another, and are not to be understood as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

It should be noted that when an element is referred to as being “disposed on” another element, it may be directly on the other element or there may also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

The radio frequency system involved in the embodiments of the present application can be applied to communication devices with wireless communication functions, and the communication devices can be handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems, and various forms of A user equipment (User Equipment, UE) (for example, a mobile phone), a mobile station (MobileStation, MS) and so on. For convenience of description, the devices mentioned above are collectively referred to as communication devices.

Fig. 1 is one of structural block diagrams of the radio frequency system of an embodiment, referring to Fig. 1, in this embodiment, the radio frequency system comprises a first processing circuit 110 and a first switching circuit 120 (Fig. 1 only shows the first switching circuit 120 The simple schematic diagram of , only for illustration, not limited).

In this embodiment, the first processing circuit 110 is connected to the first antenna terminal, and the first processing circuit 110 is configured to support the transmission processing of the first radio frequency signal; the first switching circuit 120 is configured with a first common terminal , the first switching terminal and the second switching terminal, the first common terminal is connected to the first antenna terminal, the first switching terminal is connected to the first antenna, the second switching terminal is connected to the second antenna ANT2, the first common terminal is connected to the first A selectable attenuation channel 121 is provided on the path between the switching ends, the attenuation channel 121 is configured to attenuate the power of the first radio frequency signal, and the first switching circuit 120 is configured to select between the first antenna end and the target antenna The target antenna includes one of the first antenna ANT1 and the second antenna ANT2.

Wherein, the first antenna ANT1 and the second antenna ANT2 are configured to support the sending and receiving processing of the first radio frequency signal; the first processing circuit 110 is configured to be switchably connected to the first antenna ANT1, the second The antenna ANT2 is used to support the transmission and processing of the first radio frequency signal, and the first radio frequency signal comes from the radio frequency transceiver 130 . It can be understood that the first processing circuit 110 may include devices such as power amplifiers and filters, so as to implement transmission processing of the first radio frequency signal.

Wherein, the first switching circuit 120 is configured to form a path connectable to the first antenna ANT1 between the first common terminal and the first switching terminal, and a selectable first common terminal to the second antenna ANT1. Switching the path between the ends that can be connected to the second antenna ANT2, by gating the path connected to the first antenna ANT1 or gating the path connected to the second antenna ANT2, the first processing circuit 110 can be switchably connected to the The target antenna, the target antenna includes one of the first antenna ANT1 and the second antenna ANT2. Through the switching of the antenna, the radio frequency system can be adapted to more scenarios when it is applied to communication equipment, for example, the position of one of the first antenna ANT1 and the second antenna ANT2 is held or touched and affected When the signal transmission quality of the antenna is low, it can be switched to another antenna, thereby improving the signal quality of transmission as a whole. Specifically, the first switching circuit 120 can gate the path between the first antenna end and the first antenna ANT1 by gating the path between the first common end and the first switching end; The path between the second switching terminals can be selected to select the path between the first antenna terminal and the second antenna ANT2.

Wherein, a selectable attenuation channel 121 is provided on the path between the first common terminal and the first switching terminal, and the attenuation channel 121 is configured to attenuate the power of the first radio frequency signal. Specifically, when the attenuation power of the attenuation channel 121 is xdB, if the power of the radio frequency signal before passing through the attenuation channel 121 is P, then the power of the radio frequency signal after passing through the attenuation channel 121 is (P-x)dB. When the target antenna is the first antenna ANT1, the first switching circuit 120 can gate the attenuation channel 121 according to the requirement, so that the path connected to the first antenna ANT1 in the first switching circuit 120 can perform power on the input first radio frequency signal. attenuation. Optionally, the attenuation channel 121 may include an attenuation network, or an attenuator, etc., so as to implement a power attenuation function for the first radio frequency signal.

In this embodiment, when the attenuation channel 121 is in the off state, the insertion loss value of the first path from the first antenna end to the first antenna ANT1 is smaller than the insertion loss value of the second path from the first antenna end to the second antenna ANT2; When the target antenna is the first antenna ANT1 and the first antenna terminal is in the signal transmitting state, the first switching circuit 120 is also configured to gate the attenuation channel 121, so that both the first antenna ANT1 and the second antenna ANT2 can pre- It is assumed that the power within the power range is used to transmit the first radio frequency signal.

Wherein, when the attenuation channel 121 is in the off state, the insertion loss value of the first path from the first antenna end to the first antenna ANT1 is smaller than the insertion loss value of the second path from the first antenna end to the second antenna ANT2 . In related technologies, if the insertion loss values of the switching paths corresponding to the first antenna ANT1 and the second antenna ANT2 are different, when the first radio frequency signal with a certain power output at the first antenna end passes through the first antenna end to the second The attenuated power value during the passage of an antenna ANT1 will be different from the attenuated power value during the passage from the first antenna end to the second antenna ANT2, resulting in the first antenna ANT1 and the second antenna ANT2 transmitting the first radio frequency There is a problem of power imbalance in the signal, so it is difficult to guarantee the performance of the radio frequency system in various scenarios when it is applied to communication equipment, and the performance of antenna switching is reduced. In this embodiment, when the target antenna is the first antenna ANT1 and the first antenna end is in the signal transmitting state, the first switching circuit 120 is configured to gate the attenuation channel 121, so that the attenuation function of the attenuation channel 121 can be Increase the insertion loss value between the first antenna end and the first antenna ANT1 to compensate for the difference between the first path insertion loss value and the second path insertion loss value, so that both the first antenna ANT1 and the second antenna ANT2 can The power within the preset power range transmits the first radio frequency signal to improve the problem of power imbalance when the first antenna ANT1 and the second antenna ANT2 are switched.

Wherein, the preset power range may be a range close to zero or equal to zero. When the preset power range is close to zero, the first antenna ANT1 and the second antenna ANT2 may transmit the first radio frequency signal at a relatively close power , to improve the power imbalance problem when switching between the first antenna ANT1 and the second antenna ANT2; when the preset power range is equal to zero range, the first antenna ANT1 and the second antenna ANT2 both transmit the first radio frequency signal with the same power , so as to solve the problem of power imbalance when the first antenna ANT1 and the second antenna ANT2 are switched.

Optionally, the insertion loss value of the attenuation channel 121 is equal to the difference between the insertion loss value of the second channel and the insertion loss value of the first channel, so that the attenuation function of the attenuation channel 121 can complement the insertion loss value of the first channel and The difference between the insertion loss values of the second path makes the preset power range equal to zero.

Optionally, the power of the radio frequency signal output by the first processing circuit 110 at the first antenna end is the sum of the target transmit power of the target antenna and a power compensation value, and the power compensation value is calculated according to the second path insertion loss value. Among them, the target transmit power refers to the power value required by the target antenna for transmitting radio frequency signals. The target transmit power is usually a target value calculated and obtained according to relevant parameters of the performance of the radio frequency system in various scenarios. Therefore, when the target antenna can use When the target transmit power transmits radio frequency signals, the performance of the target antenna can be fully utilized.

In the related art, since the insertion loss value of the second path connected to the second antenna ANT2 is greater than the insertion loss value of the first path connected to the first antenna ANT1, the first radio frequency signal arrives after being attenuated by the insertion loss of the second path The power of the second antenna ANT2 may be low when transmitting, so when the radio frequency system is applied in some scenarios, the performance of the second antenna ANT2 may not be fully utilized, resulting in poor user experience. In this embodiment, the power of the radio frequency signal output by the first processing circuit 110 at the first antenna end is the sum of the target transmit power of the target antenna and the power compensation value, and the power compensation value is calculated according to the second path insertion loss value , thus, the power of the first processing circuit 110 when outputting the first radio frequency signal at the first antenna end has been increased, and the difference between the target transmission power introduced by the insertion loss of the second path can be compensated, so that the transmission of the second antenna ANT2 The power is still the target transmission power, which avoids the problem of low transmission power of the second antenna ANT2.

When the target antenna is the first antenna ANT1 and the first processing circuit 110 is in the signal transmitting state, the first switching circuit 120 can perform power attenuation on the power-compensated radio frequency signal by gating the attenuation channel 121, which can improve the first path The problem that the transmission power of the first antenna ANT1 exceeds the standard due to the small insertion loss value cannot meet the regulatory requirements. Therefore, the radio frequency system can ensure that the performance of each antenna can be fully exerted on the basis of antenna power balance, thereby improving user experience. It can be understood that the radio frequency system in this embodiment is limited to one first antenna ANT1 and one second antenna ANT2 , and is also applicable to multiple first antennas ANT1 and/or multiple second antennas ANT2 . When the number of antennas is multiple, the number of ports and the number of attenuation channels 121 corresponding to the radio frequency system increase accordingly.

The radio frequency system provided in this embodiment includes a first processing circuit 110 and a first switching circuit 120, and the first switching circuit 120 enables the first processing circuit 110 to be switchably connected to the first antenna ANT1 and the second antenna ANT2; the first switching A selectable attenuation channel 121 is provided on the path between the first common terminal and the first switching terminal in the circuit 120, and the attenuation channel 121 is configured to attenuate the power of the first radio frequency signal. When the attenuation channel 121 is in the off state, the first path insertion loss value from the first antenna end to the first antenna ANT1 is smaller than the second path insertion loss value from the first antenna end to the second antenna ANT2; In the case of the antenna ANT1 and the first antenna end is in the signal transmitting state, the first switching circuit 120 is also configured to gate the attenuation channel 121, so that both the first antenna ANT1 and the second antenna ANT2 can have a power within the preset power range The first radio frequency signal is transmitted, thereby improving the problem of power imbalance when the first antenna ANT1 and the second antenna ANT2 are switched, and improving the communication performance of the radio frequency system.

Fig. 2 is the second structural block diagram of the radio frequency system of an embodiment, referring to Fig. 2 (Fig. 2 only shows a simple schematic diagram of the first switching circuit 120, which is only illustrative and not limited), in this embodiment, the first The processing circuit 110 is also configured to support the receiving and processing of the first radio frequency signal; an optional bypass channel 122 is also formed between the first common terminal and the first switching terminal, and the bypass channel 122 is configured to transmit the first radio frequency signal. signal; when the target antenna is the first antenna ANT1 and the first antenna end is in the signal receiving state, the first switching circuit 120 is also configured to gate the bypass channel 122, and the first radio frequency signal from the first antenna ANT1 transmitted to the first processing circuit 110.

Wherein, the first processing circuit 110 is also configured to support the receiving and processing of the first radio frequency signal, thus, the first processing circuit 110 is switchably connected to the first antenna ANT1 and the second antenna ANT2 through the first switching circuit 120, which can The transmission processing and receiving processing of the first radio frequency signal are supported.

Wherein, the function of the bypass channel 122 is opposite to that of the attenuating channel 121 , the bypass channel 122 has no attenuation effect or the attenuation is close to zero, and the power of the radio frequency signal passing through the bypass channel 122 is not attenuated. When the target antenna is the first antenna ANT1 and the first antenna terminal is in the signal receiving state, the target antenna is only receiving radio frequency signals, and there will be no problem of unbalanced transmission power during multi-antenna switching. At this time, by The first switching circuit 120 selects the bypass channel 122 without an attenuation function, and can transmit the first radio frequency signal from the first antenna ANT1 to the first processing circuit 110 with the lowest insertion loss, so as to avoid sacrificing the receiving performance of the radio frequency system .

Optionally, when the first processing circuit 110 has a transceiver processing function, the first processing circuit 110 may include a power amplifier, a low-noise amplifier, and a radio frequency switch, etc., and the signal transmission of the first processing circuit 110 is realized by controlling the radio frequency switch. Switching of function and signal receiving function.

Optionally, the first switching circuit 120 may select the path corresponding to the target antenna according to the first control signal received by its controlled end. When the radio frequency system is applied to the communication device, the first control signal may be generated according to the current scene information of the communication device and the processing state of the first processing circuit 110 . Scene information can be, for example, that you can watch short videos on the vertical screen, watch videos/play games with your hands on the horizontal screen, listen to music in your pocket/backpack, etc. The first antenna ANT1 and the second antenna ANT2 can be set at different positions, so that there is always a target antenna in the first antenna ANT1 and the second antenna ANT2 that is not held or touched, and can have good signal transceiving performance, By controlling the first switching circuit 120 and connecting the first processing circuit 110 with the target antenna, the signal transmission quality can be improved. The processing state includes the signal transmission state and the signal reception state. In the signal transmission state, since the channel insertion loss values corresponding to the first antenna ANT1 and the second antenna ANT2 are different, there is a problem of unbalanced antenna transmission power, which needs to be attenuated Channel 121 performs insertion loss compensation to improve the problem of antenna imbalance.

The scene information can be obtained by the control module 140 in the communication device, such as an application processor, and the processing state of the first processing circuit 110 can be obtained by the radio frequency transceiver 130 in the radio frequency system, therefore, the first control signal can be processed by the application The device and the RF transceiver 130 are provided together; the relevant processing state information can also be transmitted to the application processor by the RF transceiver 130, and the application processor can provide the first control signal after analyzing and processing; it can also be provided by the application processor to the RF transceiver 130 transmits relevant scene information, and the first control signal is provided after being analyzed by the radio frequency transceiver 130; it can also be a processor, such as a central processing unit, a micro control unit (single-chip microcomputer), etc., that can control the internal switching device of the first switching circuit 120, etc. .

FIG. 3 is a third structural block diagram of a radio frequency system according to an embodiment. Referring to FIG. 3 , in this embodiment, the first switching circuit 120 further includes: a first gating module 123 and a second gating module 124 .

The first gating module 123 is configured with a first terminal and three second terminals, the first terminal is the first common terminal of the first switching circuit 120, and the three second terminals are respectively connected to the attenuation channel 121 and the bypass channel 122 and the second antenna ANT2 are connected in one-to-one correspondence, and the second end connected to the second antenna ANT2 is the second switching end; the second gating module 124 is configured with two third ends and a fourth end, and the two first The three terminals are respectively connected to the attenuation channel 121 and the bypass channel 122 in a one-to-one correspondence, and the fourth terminal is the first switching terminal.

Wherein, the first gating module 123 is used for gating the path that the first antenna end is connected to the first antenna ANT1 or gating the path that the first antenna end is connected to the second antenna ANT2; the first gating module 123 and the second gating module 123 It is generally used to gate the attenuation channel 121 or bypass channel 122 connecting the first antenna end to the first antenna ANT1, so as to realize the switchable connection of the first antenna end to the first antenna ANT1 and the second antenna ANT2, and realize the first The antenna ANT1 is switchably connected to the attenuation channel 121 and the bypass channel 122 .

Specifically, when the target antenna is the first antenna ANT1 and the first antenna end is in a signal transmitting state, the first gating module 123 gating the path between the first end and the second end connected to the attenuation channel 121, The second gating module 124 gating is connected to the path between the third end and the fourth end of the attenuation channel 121; when the target antenna is the first antenna ANT1 and the first antenna end is in the signal receiving state, the first selection The pass module 123 selects the passage between the first end and the second end connected to the bypass passage 122, and the second select module 124 selects the passage between the third end connected to the bypass passage 122 and the fourth end ; In the case that the target antenna is the second antenna ANT2, the first gating module 123 gating the path between the first end and the second end connected to the second antenna ANT2.

Fig. 4 is the fourth structural block diagram of the radio frequency system of an embodiment, with reference to Fig. 4 (Fig. 4 takes the attenuator channel 121 as the attenuator xdB ATT, the bypass channel 122 as the example of Bypass), the first gating module 123 can include SP3T switch, the common end of the SP3T switch is the first end of the first gating module 123, and the three connection ends of the SP3T switch are respectively three second ends of the first gating module 123; the second gating module 124 can include SPDT1 switch, the two connection ends of the SPDT1 switch are respectively the two third ends of the second gating module 124 , and the common end of the SPDT1 switch is the fourth end of the second gating module 124 . Optionally, the first gating module 123 , the second gating module 124 , the attenuation channel 121 and the bypass path can form an integrated circuit, so as to improve the integration of the circuit and reduce the occupied area of the first switching circuit 120 .

Optionally, the first gating module 123 and the second gating module 124 may gating corresponding paths according to the first control signal output by the radio frequency transceiver 130 and/or the control module 140 . Taking the first gating module 123 and the second gating module 124 gating corresponding paths according to the first control signal output by the radio frequency transceiver 130 and the first switching circuit 120 is an integrated circuit as an example, wherein the radio frequency transceiver 130 is also connected with the second A processing circuit 110 is connected, as shown in FIG. 4 , the first switching circuit 120 is configured with a first public port G1, a first switching port 1, a second switching port 2 and a controlled port S, and the first public port G1 is connected to The first common terminal and the first antenna terminal are connected, the first switching port 1 is connected with the first switching terminal and the first antenna ANT1 respectively, and the second switching port 2 is connected with the second switching terminal and the second antenna ANT2 respectively; the radio frequency transceiver 130 is configured with a control port, the control port is connected to the controlled port S of the first switching circuit 120, and the control port is used to transmit the first control signal output by the radio frequency transceiver 130 to control the first gating module 123, the second gating module Gating condition of module 124.

Optionally, the control port of the radio frequency transceiver 130 may be a general purpose input/output (General purpose input/output, GPIO) interface. The radio frequency transceiver 130 is provided with a GPIO control unit. Exemplarily, when it is necessary to control the gating of the first switching circuit 120, the GPIO control unit can output signals of different levels or voltage signals of different duty ratios through the GPIO interface pins. To the controlled port of the first switching circuit 120 , so as to control the gating conditions of the first gating module 123 and the second gating module 124 .

FIG. 5 is the fifth structural block diagram of the radio frequency system of an embodiment. Referring to FIG. communication module 126.

The third gating module 125, the fifth end of the third gating module 125 is connected with the first transceiver end, a sixth end of the third gating module 125 is connected with the second antenna ANT2; the fourth gating module 126, the first The third end of the four gating module 126 is connected with another sixth end of the third gating module 125, and two fourth ends of the fourth gating module 126 are connected with the attenuation channel 121 and the bypass channel 122 respectively; The gating module 124 and the two third ends of the second gating module 124 are respectively connected to the attenuation channel 121 and the bypass channel 122 in one-to-one correspondence, and the fourth end of the second gating module 124 is the first switching end. Wherein, the third gating module 125 is used for gating the path connected to the target antenna, and the fourth gating module 126 and the second gating module 124 are used for jointly gating the attenuation channel 121 or the bypass path.

Fig. 6 is the sixth structural block diagram of the radio frequency system of an embodiment, with reference to Fig. 6, in this embodiment, the third gating module 125 can comprise a SPDT2 switch, and the public end of SPDT2 switch is connected with the first transceiver end, and SPDT2 The two connection ends of the switch are respectively connected to the fourth gating module 126 and the second antenna ANT2 in a one-to-one correspondence. The 4th gating module 126 comprises SPDT3 switch, and the common end of SPDT3 switch is connected with a connecting end of SPDT2 switch, and two connecting ends of SPDT3 switch are respectively connected with attenuation channel 121, bypass channel 122; The second gating module 124 comprises The SPDT1 switch, the two connection terminals of the SPDT1 switch are respectively connected to the attenuation channel 121 and the bypass channel 122, and the common terminal of the SPDT1 switch is connected to the first antenna ANT1. Optionally, the SPDT3 switch, the SPDT1 switch, the attenuation channel 121 and the bypass path can form an integrated circuit, so as to improve the integration of the circuit and reduce the occupied area of the first switching circuit 120 .

Optionally, the third gating module 125, the fourth gating module 126 and the second gating module 124 may be gating according to the first control signal output by the radio frequency transceiver 130 and/or the control module 140 (such as an application processor) the corresponding pathway. Use the third gating module 125, the fourth gating module 126 and the second gating module 124 to gating the corresponding paths according to the first control signal output by the control module 140 and the fourth gating module 126, the second gating module 124 , the attenuation channel 121 and the bypass path are switching integrated circuits as an example, as shown in Figure 6, the switching integrated circuit is configured with a second public port G2, a third public port G3 and a controlled port S, the second public port G2 and The third gating module 125 is connected, the third common port G3 is connected with the first antenna ANT1, the controlled port S and the application processor are respectively connected with the controlled terminal of the third gating module 125 and the controlled terminal of the fourth gating module 126. Terminal, the controlled terminal connection of the second gating module 124, the first control signal that the application processor is used for output to control the gating situation of the third gating module 125, the fourth gating module 126, the second gating module 124 .

FIG. 7 is a seventh structural block diagram of a radio frequency system according to an embodiment. Referring to FIG. 7 , in this embodiment, a second processing circuit 150 and a second switching circuit 160 are also included.

The second processing circuit 150 is connected to the second antenna end, the second antenna end is configured to be connected to the third antenna ANT3, and the second processing circuit 150 is configured to support the transmission processing of the first radio frequency signal; the second switching circuit 160 , is configured with a second common end, a third switching end and a fourth switching end, the second common end is configured to be connected to a signal output end of the radio frequency transceiver 130 (only the signal output of the radio frequency transceiver 130 is shown in the figure The connection relationship between the terminal and other modules, the connection relationship between the other terminals of the radio frequency transceiver 130 and other modules is not shown), the third switching terminal is connected to the input terminal of the first processing circuit 110, and the fourth switching terminal is connected to the second processing circuit. The input end of 150 is connected, and the second switching circuit 160 is configured to gate the signal output end to the target processing circuit so that the target processing circuit inputs the first radio frequency signal from the radio frequency transceiver 130 to realize the transmission processing of the first radio frequency signal , the target processing circuit includes one of the first processing circuit 110 and the second processing circuit 150 .

Wherein, the second processing circuit 150 is configured to be connected to the third antenna ANT3 to support the transmission processing of the first radio frequency signal, and the first radio frequency signal comes from the radio frequency transceiver 130 . It can be understood that the second processing circuit 150 may include devices such as power amplifiers and filters, so as to implement transmission processing of the first radio frequency signal. Optionally, the insertion loss value of the direct path from the second antenna end to the third antenna ANT3 may approach the first path insertion loss value from the first antenna end to the first antenna ANT1, but the distance between the second antenna end and the first antenna end The transmitting ends can be individually controlled, so that the transmitting power of the second antenna end can be different from the transmitting power of the first antenna end. Optionally, the second antenna terminal can be directly controlled to transmit the first radio frequency signal with a power within a certain preset power range, so that the transmission powers of the first antenna ANT1, the second antenna ANT2, and the third antenna ANT3 are all at the same Within the preset range, the transmission power of the first antenna ANT1 , the second antenna ANT2 and the third antenna ANT3 are balanced.

Wherein, the second switching circuit 160 is configured to form a selectable path between the second common terminal and the third switching terminal, and a selectable path between the second common terminal and the fourth switching terminal, through The gating of one of the two paths can optionally be connected to the target processing circuit of a signal output end of the radio frequency transceiver 130, so that the target processing circuit inputs the first radio frequency signal from the radio frequency transceiver 130 to realize the processing of the first radio frequency signal launch processing. The target processing circuit includes one of the first processing circuit 110 and the second processing circuit 150 .

Through the first processing circuit 110, the second processing circuit 150, the first switching circuit 120, and the second switching circuit 160, the dual-channel transmission function of the first radio frequency signal of the radio frequency system can be realized, and the selectivity of the transmission path and the transmission antenna can be improved. , so that the radio frequency system can be applied to more usage scenarios; at the same time, through the switching of multiple antennas, the uplink signal can be distributed to antennas with better antenna efficiency, further improving the communication performance of the radio frequency system.

Fig. 8 is the eighth structural block diagram of the radio frequency system of an embodiment, with reference to Fig. 8 (the embodiment of Fig. 8 is illustrated based on the embodiment of Fig. 6 ), in this embodiment, the second switching circuit 160 may include a SPDT4 switch, SPDT4 The common terminal of the switch is the second common terminal of the second switching circuit 160 , and the two connection terminals of the SPDT4 switch are respectively the third switching terminal and the fourth switching terminal of the second switching circuit 160 .

Optionally, the second switching circuit 160 may gate the path corresponding to the target processing circuit according to the received second switching control signal. The second switching control signal may be related to the signal reception quality information, for example, the radio frequency transceiver 130 or the control module 140 (such as an application processor) may determine the target processing circuit according to the signal reception quality information of the first processing circuit 110 and the second processing circuit 150 , generating a second switching control signal according to the target processing circuit and the target antenna. The signal reception quality information may include raw and processed information associated with radio performance metrics of received radio frequency signals, such as signal strength, received power, reference signal received power (Reference Signal Receiving Power, RSRP), received signal strength ( Received Signal Strength Indicator, RSSI), Signal to Noise Ratio (Signal to Noise Ratio, SNR), rank of MIMO channel matrix (Rank), carrier to interference noise ratio (Carrier toInterference plus Noise Ratio, RS-CINR), frame bit error rate, bit Bit error rate, reference signal reception quality (Reference signal reception quality, RSRQ), etc.

Optionally, in this embodiment, the gating conditions of the first switching circuit 120 and the second switching circuit 160 are controlled by the control module 140 (such as an application processor), and the controlled terminal of the third gating module 125 is connected with the control The first control end of the module 140 is connected, the controlled end of the second gating module 124, the controlled end of the fourth gating module 126, and the controlled end of the second switching circuit 160 are simultaneously connected with the second control end of the control module 140. Connect to share the port. Specifically, when the target processing circuit is the first processing circuit 110, the first antenna terminal is in the signal transmitting state, and the second control terminal of the control module 140 outputs a high level to the second switching circuit 160 and the fourth gating module 126 at the same time. signal, while the first control end outputs a high level to the third gating module 125, to control the path between the first processing circuit 110 and the signal output end of the radio frequency transceiver 130 and to control the conduction of the attenuation channel 121; When the circuit is the second processing circuit 150, the second control terminal of the control module 140 outputs a low-level signal to the second switching circuit 160 and the fourth gating module 126 at the same time, so as to control the connection between the first processing circuit 110 and the radio frequency transceiver 130. The path between the signal output ends and the control attenuation channel 121 are turned off. At this time, if the first processing circuit 110 is in the signal receiving state, the first control end outputs a high level to the third gating module 125 and the second control end The low level is output to the fourth gating module 126 to turn on the bypass channel 122 .

In other embodiments, when the first processing circuit 110 and the second processing circuit 150 work through a time-division mechanism, the switching of the target processing circuit can be performed by the internal switching devices of the first processing circuit 110 and the second processing circuit 150, and the radio frequency The system does not need to additionally set the second switching circuit 160. At this time, the control pin (BTEN) of the integrated circuit behind the integrated circuit of the first processing circuit 110 and the second processing circuit 150 can be used to control the fourth gating module 126. The module 140 continues to control the third gating module 125, and for the rest, reference may be made to the relevant control logic of the embodiment in FIG. 7 , which will not be repeated here.

FIG. 9 is a ninth structural block diagram of a radio frequency system according to an embodiment. Referring to FIG. 9 , in this embodiment, a third processing circuit 170 is also included.

The third processing circuit 170 is configured to support the transmission processing of the second radio frequency signal; wherein, the first antenna end is switchably connected to the first processing circuit 110 and the third processing circuit 170; the second radio frequency signal and the first radio frequency signal RF signals of different network standards.

Wherein, the third processing circuit 170 is configured to support the transmission processing of the second radio frequency signal. It can be understood that the third processing circuit 170 may include devices such as power amplifiers and filters to implement the transmission processing of the second radio frequency signal.

Wherein, through the switchable connection between the third processing circuit 170 and the first processing circuit 110 and the first antenna end, the radio frequency system can process the transmission of radio frequency signals of different network standards. Optionally, the different network standards may be, for example, the Bluetooth standard and the WIFI standard, so that the radio frequency system may support wireless communication in the Bluetooth standard and the WIFI standard. Optionally, the first processing circuit 110 supports transmission processing of the Bluetooth standard, and the second processing circuit 150 supports transmission processing of the WIFI standard, so that the first radio frequency signal is a Bluetooth signal, and the second radio frequency signal is a WIFI signal.

Optionally, the first processing circuit 110 and the third processing circuit 170 may realize a switchable connection with the first antenna end through a radio frequency switch. Optionally, the target processing circuit at the first antenna end may be determined according to the communication type.

The communication type can be determined according to the scene type in the scene information in the above embodiment, and the scene type can be determined according to information such as the use of the upper layer application, the detection data of the data flow, the connection between the communication device and other devices, for example, when the communication device and the When the Bluetooth headset and the Bluetooth speaker are connected, it can be determined that the current communication type is Bluetooth communication, thereby determining that the target processing circuit connected to the first antenna terminal is the first processing circuit 110 . It can be understood that the communication type can be obtained through other existing related technologies, and is not limited here.

Optionally, in combination with the above-mentioned embodiments of FIGS. And the third processing circuit 170 can transmit and process the first radio frequency signal and the second radio frequency signal in a TDD manner, and the first radio frequency signal can be transmitted by selecting one of the first antenna ANT1, the second antenna ANT2 and the third antenna ANT3 , the second radio frequency signal can be transmitted by selecting one of the first antenna ANT1 and the second antenna ANT2.

Optionally, both the first processing circuit 110 and the second processing circuit 150 may also be configured to support receiving and processing the first radio frequency signal, and the third processing circuit 170 may also be configured to support receiving and processing the first radio frequency signal , so that the radio frequency system can support the sending and receiving processing of the first radio frequency signal and the second radio frequency signal, the first radio frequency signal is selected from the first antenna ANT1, the second antenna ANT2 and the third antenna ANT3 to transmit and receive, and the second radio frequency signal can be Select one of the first antenna ANT1 and the second antenna ANT2 to transmit and receive.

Fig. 10 and Fig. 11 are structural block diagrams ten and eleven of the radio frequency system of an embodiment respectively. Referring to Fig. 10 and Fig. 11, in this embodiment, the radio frequency system may further include a fourth processing circuit 180 configured to support Sending and receiving processing of the second radio frequency signal; wherein, the second antenna terminal is switchably connected to the second processing circuit 150 and the fourth processing circuit 180; the second radio frequency signal and the first radio frequency signal are radio frequency signals of different network standards.

Optionally, take the first radio frequency signal as a bluetooth signal, and the second radio frequency signal as an example of a WIFI signal for illustration, referring to FIG. 10 (in FIG. ) and FIG. 11 (in FIG. 11, the control module 140 controls the gating of the first switching circuit 120 and the second switching circuit 160 and the control module 140 is an application processor AP as an example), in this embodiment, the first processing circuit 110. The second processing circuit 150, the third processing circuit 170, and the fourth processing circuit 180 can all support the sending and receiving processing of radio frequency signals, and the first processing circuit 110 and the third processing circuit 170 sharing the first antenna end can share the receiving path to The first transceiver circuit shared by BT and WIFI is formed, and the second processing circuit 150 and the fourth processing circuit 180 sharing the second antenna end can share the receiving path to form the second transceiver circuit shared by BT and WIFI. Wherein, the first transceiver circuit includes a first Bluetooth transmitting branch, a first WIFI transmitting branch, and a first shared receiving branch, and the second transceiver circuit includes a second Bluetooth transmitting branch, a second WIFI transmitting branch, and a first shared receiving branch. Two shared receiving branches. It can be understood that, in other embodiments, the Bluetooth transmitting branch and the WIFI transmitting branch may also be shared.

Optionally, the first transceiver circuit and the second transceiver circuit shared by the first processing circuit 110, the second processing circuit 150, the third processing circuit 170, and the fourth processing circuit 180 may be integrated in a front-end module (Front-endModules, FEM ) chip. The function of the FEM chip is to amplify the radio frequency signal to increase the transmission power and increase the transmission distance, or amplify it through a low-noise amplifier to improve the receiving sensitivity and improve the receiving distance. As shown in the figure, the FEM chip includes power amplifiers (TXPA and BT PA) , Low noise amplifiers (LNA1 and LNA2), RF switches (T1-T4, SP3T01, SP3T02), couplers and Bypass switches (Bypass K1, Bypass K2). Among them, the power amplifier is used to amplify the corresponding transmitted radio frequency signal to increase the transmission power; the low noise amplifier is used to amplify the received radio frequency signal to improve the receiving sensitivity; the Bypass switch is used to prevent the received power from being too large to saturate the low noise amplifier and affect the Receiving performance; the coupler is used to couple and feed back part of the transmission power to the radio frequency transceiver 130 to realize power control; SP3T01 connects each branch of the first transceiver circuit to the first antenna ANT1 or the second antenna ANT2 in a time-division manner, Realize the sending and receiving of Bluetooth and WIFI signals. The FEM chip also includes some capacitors and resistors, which will not be repeated here. The FEM chip also has a power supply terminal VCC, and some enable terminals connected to corresponding ports of the radio frequency transceiver 130, such as the Bluetooth enable terminal BTEN, the low noise amplifier enable terminal LNAEN and the power amplifier enable terminal PAEN. It can be understood that, in other embodiments, the first switching circuit 120 and the second switching circuit 160 in the above-mentioned embodiments may also be integrated in the FEM chip, which will not be further elaborated.

Optionally, as shown in FIG. 10 and FIG. 11 , the radio frequency system may further include a first filtering module 190 and a second filtering module 200 . The first end of the first filter module 190 is connected to the first switching end, the second end of the first filter module 190 is connected to the first antenna ANT1, and the first filter module 190 is used to filter the input radio frequency signal; the second The first terminal of the filtering module 200 is connected to the second switching terminal, the second terminal of the second filtering module 200 is connected to the second antenna ANT2, and the second filtering module 200 is used for filtering the input radio frequency signal. Optionally, the first filtering module 190 and the second filtering module 200 are respectively used to filter out useless signals outside the 2.4GHz frequency band, because both the WIFI 2.4G frequency band and Bluetooth work in the 2.4G-2.8G frequency band, so the same filter to achieve the same effect.

Optionally, in other embodiments, the radio frequency system may further include a third filtering module, the first end of the third filtering module is connected to the first antenna end, the second end of the third filtering module is connected to the first switching circuit 120 The first common terminal is connected, and the third filtering module is used for filtering the input radio frequency signal. Optionally, a third filter module is included to filter out unwanted signals outside the 2.4GHz frequency band, because both WIFI 2.4G frequency band and Bluetooth work in the 2.4G-2.8G frequency band, so the same filter can be used to achieve the same Effect. In this embodiment, one filter module can replace the two filter modules in the previous embodiment, which can save one filter and reduce device cost.

Optionally, in this embodiment, the radio frequency system further includes a radio frequency transceiver 130. The radio frequency transceiver 130 can be used to complete the conversion and inverse conversion process from digital signals to radio frequency signals, including encapsulation and framing of digital signals, digital-to-analog signal Conversion, modulation, up-conversion, etc., finally generate the corresponding first radio frequency signal and second radio frequency signal, or send the signal to the processor for processing after a series of inverse processes, including down-conversion, demodulation, modulus Signal conversion, decapsulation and other processes.

Fig. 12 is one of the flow charts of the communication control method of an embodiment, the communication control method is applied to the communication device, in this embodiment, the communication device includes the radio frequency system of each of the above embodiments, and the related description of the radio frequency system refers to the above embodiment , which will not be repeated here. Referring to FIG. 12 , the communication control method includes step 121 - step 123 .

Step 121, acquiring current scene information of the communication device.

Among them, the scene information includes the current use scene type and the current device state, which is used to represent the device state in the current use scene of the communication device. The use scene type can be understood as the use of the application, such as listening to songs, watching videos, playing games Etc., the device state can be understood as including the posture of the device itself and the state of being held. For example, scene information can be used to watch short videos in vertical screen, watch videos/play games in hand in horizontal screen, and listen to music in pockets/backpacks. It can be understood that all the states that the communication device can detect or are detected can be regarded as the states of the communication device.

Step 122: Determine a target antenna connected to the first antenna terminal according to the scene information, where the target antenna includes one of the first antenna and the second antenna.

Among them, since the position of the antenna in the communication device is fixed, the status of the device in different usage scenarios will affect the transmission and reception of the antenna. Switching the target antenna according to the scene information can make the radio frequency system applicable to communication devices. Adapt to more scenarios, for example, when one of the first antenna and the second antenna is held or touched and the signal transmission quality of the antenna is affected, it can be switched to another antenna, so that the overall Improve the signal quality of the transmission.

Optionally, the first scene information corresponding to the first antenna and the second scene information corresponding to the second antenna may be preset, and if the current scene information corresponds to the first scene information, select the first antenna as the target antenna; if The current scene information corresponds to the second scene information, and the second antenna is selected as the target antenna.

Step 123, when the target antenna is the first antenna and the first antenna terminal is in the signal transmitting state, control the first switching circuit to select the attenuation channel, so that both the first antenna and the second antenna operate at a power within the preset power range Power transmits a first radio frequency signal.

Wherein, a selectable attenuation channel is provided on the path between the first antenna end and the first antenna, and relevant descriptions of the attenuation channel refer to the above-mentioned embodiments, and details are not repeated here. When it is determined that the target antenna is the first antenna and the first antenna end is in a signal transmitting state, the first switching circuit is controlled to gate the path connected to the first antenna, and at the same time, the first switching circuit is controlled to gate the attenuation channel, so that the second Both the first antenna and the second antenna can transmit the first radio frequency signal at a power within a preset power range.

Optionally, the scene information may be obtained by an application processor in the communication device, and the processing status of the first processing circuit may be obtained by a radio frequency transceiver in a radio frequency system. Therefore, the above steps may be obtained by the application processor and the radio frequency transceiver Joint execution; the radio frequency transceiver may also transmit relevant processing status information to the application processor, and the application processor may perform the above steps; or the application processor may transmit relevant scene information to the radio frequency transceiver, and the radio frequency transceiver may perform the above steps .

The communication control method provided in this embodiment obtains the current scene information of the communication device; determines the target antenna connected to the first antenna end according to the scene information, and the target antenna includes one of the first antenna and the second antenna; when the target antenna is When the first antenna is in the signal transmitting state, the first switching circuit is controlled to select the attenuation channel, so that both the first antenna and the second antenna transmit the first radio frequency signal with a power within a preset power range. Therefore, the switching of the target antenna can match the current usage scenario, and improve the signal transmission quality; it can also improve the problem of power imbalance when switching between the first antenna and the second antenna, and improve the communication performance of the radio frequency system.

Fig. 13 is the second flow chart of the communication control method of an embodiment. Referring to Fig. 13, the communication control method includes steps 131-step 134, and for steps 131-step 133, please refer to the related description of steps 121-123 in the previous embodiment , which will not be repeated here.

Step 134, when the target antenna is the first antenna and the first antenna terminal is in the signal receiving state, control the first switching circuit to select the bypass channel, and transmit the first radio frequency signal from the first antenna to the first processing circuit .

When the target antenna is the first antenna and the first antenna terminal is in the signal receiving state, by controlling the first switching circuit to gate the bypass channel without attenuation function, the signal from the first antenna can be transferred under the lowest insertion loss The first radio frequency signal is transmitted to the first processing circuit, so as to avoid sacrificing the receiving performance of the radio frequency system. For the relevant descriptions of the first processing circuit and the bypass channel, reference may be made to the relevant descriptions in the corresponding embodiments of the radio frequency system, and details are not repeated here.

FIG. 14 is the third flowchart of the communication control method of an embodiment. Referring to FIG. 14 , the communication control method further includes steps 141-143.

Step 141, acquire signal reception quality information of the first processing circuit and the second processing circuit.

Step 142, determine the target processing circuit according to the signal reception quality information, the target processing circuit inputs the first radio frequency signal from the radio frequency transceiver to realize the transmission processing of the first radio frequency signal, the target processing circuit includes the first processing circuit and the second processing circuit all the way.

Step 143, when the target transmitting circuit is the first processing circuit and the target antenna is the first antenna, control the second switching circuit to gate the path between the second common end and the third switching end, and control the first switching circuit The path between the first common terminal and the first switching terminal is selected and the attenuation channel is selected.

Wherein, the relevant descriptions of the signal reception quality information, the second processing circuit, the second switching circuit, the second common terminal, the third switching terminal, the fourth switching terminal and the selection process of the second switching circuit can refer to the corresponding implementation in the radio frequency system. The relevant descriptions in the examples are not repeated here.

Optionally, the signal reception quality information may be acquired by a radio frequency transceiver, and the radio frequency transceiver determines the target processing circuit according to the signal reception quality information, therefore, the above steps may be performed by the radio frequency transceiver; or the signal reception quality information may also be obtained by After the radio frequency transceiver is acquired, it is output to the application processor or other processors, and the above steps are executed by the application processor or other processors.

FIG. 15 is a fourth flowchart of a communication control method according to an embodiment. Referring to FIG. 15 , the communication control method further includes steps 151-152.

Step 151, acquire the communication type of the communication device.

Step 152: Control the connection of the first antenna end to the target processing circuit according to the communication type, and the target processing circuit includes a first processing circuit supporting processing of the first radio frequency signal transmission and a third processing circuit supporting processing of the second radio frequency signal transmission One channel; the second radio frequency signal and the first radio frequency signal are radio frequency signals of different network standards.

For the acquisition of the communication type, reference may be made to relevant descriptions in the foregoing embodiments, which will not be repeated here. Through the third processing circuit and the switching connection control between the first processing circuit and the first antenna terminal, the radio frequency system can support the transmission processing of radio frequency signals of different network standards.

FIG. 16 is a fifth flowchart of a communication control method in an embodiment. Referring to FIG. 16 , the communication control method further includes steps 161-162.

Step 161, acquire the target receiving and transmitting status of the target antenna.

Step 162, when the target transceiver state is the signal transmission state, control the power of the radio frequency signal output by the first antenna end to be the sum of the target transmit power of the target antenna and the power compensation value, and the power compensation value is based on the insertion loss of the second antenna The value is calculated.

Among them, the target transmission power refers to the power value required by the target antenna for transmitting radio frequency signals. The target transmission power is usually the target value calculated and obtained according to the relevant parameters of the performance of the radio frequency system in various scenarios. Therefore, when the target antenna transmits and receives the state In the case of the signal transmitting state, controlling the power of the radio frequency signal output by the first antenna terminal to be the sum of the target transmitting power of the target antenna and the power compensation value can fully exert the performance of the target antenna. Optionally, the foregoing steps 161 to 162 may be performed by a radio frequency transceiver, or may be performed by other processors.

The embodiment of the present application also provides a communication control device, which is applied to the communication equipment with the above-mentioned radio frequency system, and the communication control device is used to obtain the current scene information of the communication device; determine according to the scene information The target antenna connected to the first antenna end, the target antenna includes one of the first antenna and the second antenna; when the target antenna is the first antenna and the first good port is in the signal In the case of a transmitting state, the first switching circuit is controlled to select the attenuation channel, so that both the first antenna and the second antenna transmit the first radio frequency signal with a power within a preset power range.

Wherein, the communication control device is used to execute the steps of the communication control method of the above-mentioned embodiments. For the related description of the communication control device, please refer to the relevant description in the communication control method, which will not be repeated here.

The embodiment of the present application also provides a communication device, including the radio frequency system in the above embodiment, the communication device can match the current usage scenario through the switching of the target antenna, and improve the signal transmission quality; it can also improve the first antenna and the second antenna. The problem of power imbalance during antenna switching improves the communication performance of the radio frequency system.

Fig. 17 is a structural block diagram of a communication device of an embodiment. With reference to Fig. 17, the above-mentioned communication device is a mobile phone 11 as an example for illustration, and the mobile phone 11 may include a memory 21 (which optionally includes one or more computer-readable storage medium), a processor 22, a peripheral device interface 23, a radio frequency system 24, and an input/output (I/O) subsystem 26 according to the above-mentioned embodiments. These components optionally communicate via one or more communication buses or signal lines 29 . Those skilled in the art can understand that the mobile phone 11 shown in FIG. 17 does not constitute a limitation to the mobile phone, and may include more or less components than shown in the figure, or combine some components, or arrange different components. The various components shown in FIG. 17 are implemented in hardware, software, or a combination of both hardware and software, including one or more signal processing and/or application specific integrated modules.

Memory 21 optionally includes high-speed random access memory, and optionally also includes non-volatile memory, such as one or more magnetic disk storage devices, flash memory devices, or other non-volatile solid-state memory devices. Exemplarily, the software components stored in the memory 21 include an operating system 211 , a communication module (or an instruction set) 212 , a global positioning system (GPS) module (or an instruction set) 213 and the like.

Processor 22 and other control modules, such as control module 140 in radio frequency system 24 , may be configured to control the operation of handset 11 . The processor 22 may be based on one or more microprocessors, microcontrollers, digital signal processors, baseband processors, power management modules, audio codec chips, application specific integrated modules, and the like.

Processor 22 may be configured to implement a control algorithm that controls the use of antennas in handset 11 . The processor 22 may also issue control commands configured to control switches in the radio frequency system 24 , and the like.

I/O subsystem 26 couples input/output peripherals on handset 11 such as a keypad and other input control devices to peripherals interface 23 . I/O subsystem 26 optionally includes a touch screen, keys, tone generator, accelerometer (motion sensor), ambient light sensor and other sensors, light emitting diodes and other status indicators, data ports, and the like. Exemplarily, a user may control the operation of handset 11 by supplying commands via I/O subsystem 26 and may use the output resources of I/O subsystem 26 to receive status information and other output from handset 11 . For example, the user can turn on or turn off the mobile phone by pressing the button 261 .

The embodiment of the present application also provides a communication device, including a memory and a processor, where a computer program is stored in the memory, and when the computer program is executed by the processor, the processor is made to execute the steps of the above communication control method.

The embodiment of the present application also provides a computer-readable storage medium. One or more non-transitory computer-readable storage media containing computer-executable instructions that, when executed by one or more processors, cause the processors to perform the steps of the communication control method.

The embodiment of the present application also provides a computer program product including instructions, which, when running on a computer, causes the computer to execute the communication control method.

Any reference to memory, storage, database, or other medium as used herein may include non-volatile and/or volatile memory. Suitable nonvolatile memory may include read only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RM), which acts as external cache memory. By way of illustration and not limitation, RM is available in various forms such as Static RM (SRM), Dynamic RM (DRM), Synchronous DRM (SDRM), Double Data Rate SDRM (DDR SDRM), Enhanced SDRM (ESDRM), Synchronous Link (Synchlink) DRM (SLDRM), Memory Bus (Rmbus) Direct RM (RDRM), Direct Memory Bus Dynamic RM (DRDRM), and Memory Bus Dynamic RM (RDRM).

The technical features of the above embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be It is considered to be within the range described in this specification.

The above examples only express several implementation modes of the present application, and the description thereof is relatively specific and detailed, but should not be construed as limiting the patent scope of the present application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of protection of the patent application should be based on the appended claims.

Claims (17)

1. A radio frequency system, characterized in that, comprising: A first processing circuit, connected to the first antenna end, the first processing circuit is configured to support the transmission processing of the first radio frequency signal; The first switching circuit is configured with a first common terminal, a first switching terminal and a second switching terminal, the first common terminal is connected to the first antenna terminal, the first switching terminal is connected to the first antenna, The second switching end is connected to the second antenna, and a selectable attenuation channel is provided on the path between the first common end and the first switching end, and the attenuation channel is configured to attenuate the first radio frequency power of a signal, the first switching circuit is configured to gate a path between the first antenna end and a target antenna, the target antenna comprising one of the first antenna and the second antenna; Wherein, when the attenuation channel is in the off state, the first path insertion loss value from the first antenna end to the first antenna is smaller than the second path insertion loss value from the first antenna end to the second antenna. loss value; when the target antenna is the first antenna and the first antenna end is in a signal transmitting state, the first switching circuit is further configured to gate the attenuation channel so that the Both the first antenna and the second antenna can transmit the first radio frequency signal at a power within a preset power range. 2. The radio frequency system according to claim 1, wherein the first processing circuit is further configured to support receiving and processing the first radio frequency signal; the first common terminal is switched to the first An optional bypass channel is also formed between the terminals, and the bypass channel is configured to transmit the first radio frequency signal; When the target antenna is the first antenna and the first antenna terminal is in the signal receiving state, the first switching circuit is further configured to select the bypass channel, and the The first radio frequency signal from the antenna is transmitted to the first processing circuit. 3. The radio frequency system according to claim 2, wherein the first switching circuit further comprises: The first gating module is configured with a first terminal and three second terminals, the first terminal is the first common terminal of the first switching circuit, and the three second terminals are respectively connected to the attenuation channel . The bypass channel and the second antenna are connected in one-to-one correspondence, and the second end connected to the second antenna is the second switching end; The second gating module is configured with two third terminals and a fourth terminal, and the two third terminals are respectively connected to the attenuation channel and the bypass channel in a one-to-one correspondence, and the fourth terminal is The first switching terminal. 4. The radio frequency system according to claim 3, wherein when the target antenna is the first antenna and the first antenna terminal is in a signal transmitting state, the first gating module selects through the passage between the first end and the second end connected to the attenuation channel, and the second gating module gates the third end connected to the attenuation channel and the fourth end path between terminals; When the target antenna is the first antenna and the first antenna terminal is in a signal receiving state, the first gating module gates the first terminal and all the terminals connected to the bypass channel The passage between the second ends, the second gating module gating the passage between the third end and the fourth end connected to the bypass channel; In case the target antenna is the second antenna, the first gating module gates a path between the first end and the second end connected to the second antenna. 5. The radio frequency system according to claim 2, further comprising: A second processing circuit, connected to a second antenna terminal, the second antenna terminal configured to be connected to a third antenna, the second processing circuit configured to support transmission processing of the first radio frequency signal; The second switching circuit is configured with a second common terminal, a third switching terminal and a fourth switching terminal, the second common terminal is configured to be connected to a signal output terminal of the radio frequency transceiver, and the third switching terminal is connected to the input terminal of the first processing circuit, the fourth switching terminal is connected to the input terminal of the second processing circuit, and the second switching circuit is configured to gate the signal output terminal to the target processing circuit, so that the target processing circuit inputs the first radio frequency signal from the radio frequency transceiver to realize the transmission processing of the first radio frequency signal, and the target processing circuit includes the first processing circuit and the Describe one path in the second processing circuit. 6. The radio frequency system according to claim 2, further comprising: The third processing circuit is configured to support the transmission processing of the second radio frequency signal; Wherein, the first antenna terminal is switchably connected to the first processing circuit and the third processing circuit; the second radio frequency signal and the first radio frequency signal are radio frequency signals of different network standards. 7. The radio frequency system according to claim 6, wherein the first radio frequency signal is a Bluetooth signal, and the second radio frequency signal is a WIFI signal. 8. The radio frequency system according to any one of claims 1-7, wherein the insertion loss value of the attenuation channel is equal to the difference between the insertion loss value of the second channel and the insertion loss value of the first channel difference. 9. The radio frequency system according to any one of claims 1-7, wherein the power of the radio frequency signal output by the first processing circuit at the first antenna end is equal to the target transmission power of the target antenna and A sum of power compensation values, where the power compensation value is calculated and obtained according to the insertion loss value of the second path. 10. A communication control method, characterized in that it is applied to a communication device having the radio frequency system according to any one of claims 1-9, comprising: acquiring current scene information of the communication device; determining the target antenna connected to the first antenna terminal according to the scene information, where the target antenna includes one of a first antenna and a second antenna; When the target antenna is the first antenna and the first antenna end is in a signal transmitting state, control the first switching circuit to select the attenuation channel, so that the first antenna and the The second antennas all transmit the first radio frequency signal with a power within a preset power range. 11. The communication control method according to claim 10, further comprising: When the target antenna is the first antenna and the first antenna terminal is in the signal receiving state, the first switching circuit is controlled to select the bypass channel, and the first radio frequency from the first antenna signal transmission to the first processing circuit; Wherein, the first processing circuit is further configured to support the receiving and processing of the first radio frequency signal; an optional bypass channel is also formed between the first common terminal and the first switching terminal, The bypass channel is configured to transmit the first radio frequency signal. 12. The communication control method according to claim 10, further comprising: acquiring signal reception quality information of the first processing circuit and the second processing circuit; Determine a target processing circuit according to the signal reception quality information, the target processing circuit inputs the first radio frequency signal from the radio frequency transceiver to implement transmission processing of the first radio frequency signal, and the target processing circuit includes one of the first processing circuit and the second processing circuit; When the target transmitting circuit is the first processing circuit and the target antenna is the first antenna, controlling the second switching circuit to gate the path between the second common end and the third switching end, and controlling the The first switching circuit gates the path between the first common terminal and the first switching terminal and gates the attenuation channel; Wherein, the radio frequency system also includes: The second processing circuit is connected to a second antenna terminal, the second antenna terminal is configured to be connected to a third antenna, and the second processing circuit is configured to support the transmission processing of the first radio frequency signal; The second switching circuit is configured with a second common terminal, a third switching terminal, and a fourth switching terminal, the second common terminal is configured to be connected to a signal output terminal of the radio frequency transceiver, and the first The three switching terminals are connected to the input terminal of the first processing circuit, and the fourth switching terminal is connected to the input terminal of the second processing circuit. 13. The communication control method according to any one of claims 10-12, further comprising: Acquiring the target transceiving state of the target antenna; When the target transceiving state is a signal transmitting state, control the power of the radio frequency signal output by the first antenna terminal to be the sum of the target transmitting power of the target antenna and a power compensation value, and the power compensation value is based on the set The insertion loss value of the above-mentioned second antenna is calculated and obtained. 14. A communication control device, characterized in that it is applied to a communication device having the radio frequency system according to any one of claims 1-9, the communication control device is used to obtain the current scene information of the communication device ; Determine the target antenna connected to the first antenna end according to the scene information, the target antenna includes one of the first antenna and the second antenna; when the target antenna is the first antenna and the When the first antenna terminal is in the signal transmitting state, control the first switching circuit to select the attenuation channel, so that both the first antenna and the second antenna transmit with power within the preset power range The first radio frequency signal. 15. A communication device, comprising: The radio frequency system according to any one of claims 1-9. 16. A communication device, comprising a memory and a processor, wherein a computer program is stored in the memory, wherein, when the computer program is executed by the processor, the processor is executed as claimed in claims 10-13. The steps of any one of the communication control methods. 17. A computer-readable storage medium, on which a computer program is stored, wherein, when the computer program is executed by a processor, the steps of the communication control method according to any one of claims 10-13 are implemented.

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