Radio frequency system, communication device and communication control method

Abstract

The invention relates to a radio frequency system, a communication device and a communication control method, and the radio frequency system comprises a radio frequency circuit which is used for supporting the transmission processing of a radio frequency signal; the tuning circuit is connected with the radio frequency circuit and the antenna, the tuning circuit is configured with a plurality of tuning parameters, and when the tuning parameters are different, the directional gains of the antenna are different; the processing circuit is respectively connected with the radio frequency circuit and the tuning circuit, and is used for controlling the tuning circuit to adjust to a target tuning parameter under the condition that the communication equipment is in a preset communication scene, so as to increase the directional gain of the antenna, the communication capability of the communication equipment in the preset communication scene is lower than the communication capability of the communication equipment in the normal communication scene. Through the radio frequency system, the antenna gain of the communication equipment in a specific direction can be improved under the condition that the communication equipment is in a special scene, so that the communication equipment has better communication capability in a weak signal scene, and the uplink coverage capability of the communication equipment is improved.

Description

Technical Field

[0001] The present application relates to the field of mobile communication technology, and in particular to a radio frequency system, communication equipment and communication control method. Background Art

[0002] Since the transmission power of mobile terminals is much smaller than that of base stations, the UE uplink coverage is smaller than the downlink coverage, which leads to common problems such as users failing to access the network in a weak network environment and low uplink and downlink rates, which has a great impact on user experience.

[0003] In existing solutions, in order to improve the uplink coverage of UE, the method of increasing the RF conduction transmission power is usually adopted. However, due to the maximum transmission power of the PA used in current mobile phones and the influence of the insertion loss of devices such as the RF front-end duplexer, the maximum RF conduction transmission power is limited. Summary of the invention

[0004] Based on this, it is necessary to provide a radio frequency system, a communication device and a communication control method, which can improve the antenna gain of the communication device in a specific direction when the communication device is in a special scenario, so that the communication device has better communication capabilities in weak signal scenarios, thereby improving the uplink coverage capability of the communication device.

[0005] In a first aspect, the present application provides a radio frequency system, which is applied to a communication device, and the radio frequency system includes:

[0006] A radio frequency circuit, used to support transmission processing of radio frequency signals;

[0007] A tuning circuit connected to the radio frequency circuit and the antenna, wherein the tuning circuit is configured with a plurality of tuning parameters, wherein different tuning parameters result in different directional gains of the antenna;

[0008] The processing circuit is connected to the radio frequency circuit and the tuning circuit respectively, and is used to control the tuning circuit to adjust to the target tuning parameters to increase the directional gain of the antenna when the communication device is in a preset communication scenario, wherein the communication capability of the communication device in the preset communication scenario is lower than the communication capability of the communication device in a normal communication scenario.

[0009] In a second aspect, the present application provides a communication device, which includes an antenna and the radio frequency system as described above, and the antenna is connected to the radio frequency system.

[0010] In a third aspect, the present application provides a communication control method, the method comprising:

[0011] Identifying a scene in which the communication device is located according to scene detection information, wherein the scene detection information includes at least one of location information, sensor detection information, and network information parameter information, the communication device is configured with at least a normal working mode and a directional working mode, and the antenna directional gain of the communication device in the directional working mode is greater than the antenna directional gain in the normal working mode;

[0012] When it is identified that the communication device is in a preset communication scenario, the communication device is controlled to operate in the directional working mode, wherein the communication capability of the communication device in the preset communication scenario is lower than the communication capability of the communication device in a normal communication scenario.

[0013] The above-mentioned RF system and communication equipment include a RF circuit, a tuning circuit and a processing circuit. The tuning circuit is configured with multiple tuning parameters. Different tuning parameters result in different directional gains of the antenna. When the communication equipment is in a preset communication scenario, the processing circuit controls the tuning circuit to adjust to the target tuning parameters, which can increase the directional gain of the antenna and improve the antenna gain of the communication equipment in a specific direction, so that the communication equipment has better communication capabilities in weak signal scenarios, thereby improving the uplink coverage capability of the communication equipment.

[0014] The above-mentioned communication control method can identify the scene in which the communication device is located based on the scene detection information. When it is identified that the communication device is in a preset communication scene, the radio frequency circuit is controlled to operate in a directional working mode, which can improve the antenna gain of the communication device in a specific direction, so that the communication device has better communication capabilities in weak signal scenarios, thereby improving the uplink coverage capability of the communication device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 A communication environment diagram of a communication device and a reference in a related art in one embodiment of the present application;

[0017] Figure 2 This is a schematic diagram of the structure of a radio frequency system in one embodiment of the present application;

[0018] Figure 3 This is a horizontal signal radiation diagram of the antenna in a normal working mode of an embodiment of the present application;

[0019] Figure 4This is a vertical signal radiation diagram of the antenna in a normal working mode of an embodiment of the present application;

[0020] Figure 5 This is a horizontal signal radiation diagram of the antenna in a directional working mode according to an embodiment of the present application;

[0021] Figure 6 This is a vertical signal radiation diagram of the antenna in a directional working mode according to an embodiment of the present application;

[0022] Figure 7 This is a structural diagram of a radio frequency system in another embodiment of the present application;

[0023] Figure 8 This is a structural diagram of a radio frequency system in yet another embodiment of the present application;

[0024] Fig. 9 This is a structural diagram of a radio frequency system in another embodiment of the present application;

[0025] Fig.10 This is a structural diagram of a radio frequency system in another embodiment of the present application;

[0026] Fig.11 This is a structural diagram of a radio frequency system in another embodiment of the present application;

[0027] Fig.12 is a structural block diagram of a communication device in one embodiment;

[0028] Fig.13 The figure is a flow chart of a communication control method in one embodiment.

[0029] Description of reference numerals:

[0030] 11-RF circuit, 111-power amplifier circuit, 112-first switch circuit, 113-filter circuit, 114-second switch circuit, 12-tuning circuit, 121-selection unit, 122-tuning unit, 13-processing circuit, 131-modem, 132-RF transceiver. DETAILED DESCRIPTION

[0031] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0033] It is understood that the terms "first", "second", etc. used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish a first element from another element. For example, without departing from the scope of this application, a first transmission path may be referred to as a second transmission path, and similarly, a second transmission path may be referred to as a first transmission path. Both the first transmission path and the second transmission path are transmission paths, but they are not the same transmission path.

[0034] It can be understood that the “connection” in the following embodiments should be understood as “electrical connection”, “communication connection”, etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0035] It can be understood that “at least one” means one or more, “plurality” means two or more, and “at least part of an element” means part or all of an element.

[0036] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0037] As described in the background technology, Figure 1 As shown, since the transmission power of the mobile terminal is much smaller than the transmission power of the base station, the UE uplink coverage is smaller than the downlink coverage, which in turn causes the current common problems of users failing to access the network in a weak network environment and low uplink and downlink rates, which has a great impact on the user experience.

[0038] In existing solutions, in order to improve the uplink coverage of UE, the method of increasing the RF conduction transmission power is usually adopted. However, due to the maximum transmission power of the PA used in current mobile phones and the influence of the insertion loss of devices such as the RF front-end duplexer, the maximum RF conduction transmission power is limited.

[0039] In order to solve the above problems, the present application provides a radio frequency system. 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, smart cars, wearable devices, computing devices or other processing devices connected to the wireless modem 131, as well as various forms of user equipment (UE) (for example, mobile phones), mobile stations (MS), etc. For the convenience of description, the above-mentioned devices are collectively referred to as communication devices. Figure 2 As shown, the radio frequency system includes: a radio frequency circuit 11, a tuning circuit 12 and a processing circuit 13.

[0040] The radio frequency circuit 11 is used to support the transmission processing of the radio frequency signal. The tuning circuit 12 is connected to the radio frequency circuit 11 and the antenna. The tuning circuit 12 is configured with a plurality of tuning parameters, wherein different tuning parameters result in different directional gains of the antenna. The tuning circuit 12 is arranged on the transmission path between the radio frequency circuit 11 and the antenna. By adjusting the tuning parameters of the tuning circuit 12, the transmission performance of the antenna can be improved.

[0041] The processing circuit 13 is connected to the RF circuit 11 and the tuning circuit 12 respectively, and is used to control the tuning circuit 12 to adjust to the target tuning parameters when the communication device is in a preset communication scenario to increase the directional gain of the antenna, wherein the communication capability of the communication device in the preset communication scenario is lower than the communication capability of the communication device in a normal communication scenario.

[0042] The preset communication scene may be a weak signal scene in a specific environment such as an elevator, basement, offshore, forest, mountain, desert, etc. The corresponding processor of the communication device may perform scene recognition based on the received relevant information. For example, the application processor of the communication device determines the scene where the communication device is located based on the satellite positioning information.

[0043] In the application, multiple tuning states of the tuning circuit 12 can be predetermined, and the tuning parameters corresponding to each tuning state are different. At least the tuning states corresponding to the normal working mode and the directional working mode can be set. Figure 3 and Figure 4 As shown, when the tuning circuit 12 is in a tuning state corresponding to the normal working mode, the antenna performs omnidirectional radiation to ensure the omnidirectional radiation performance of the antenna, thereby meeting the use of normal scenarios.

[0044] like Figure 5 and Figure 6As shown, when the tuning circuit 12 is in the tuning state corresponding to the directional working mode, the radio frequency system can concentrate the transmission power in the predetermined direction, and the energy in this predetermined direction is greatly enhanced, thereby achieving the antenna gain in the predetermined direction. Exemplarily, when the tuning circuit 12 is in the tuning state corresponding to the directional working mode, a gain of +B dBi can be achieved in a certain direction. Assuming that the antenna input conduction power is A dBm, the EIRP (equivalent isotropically radiated power) of the antenna in this direction is A+B dBm. In application, B ≥ 3 can be made, that is, a 3dB gain can be obtained in a specific direction, so that the communication device has better communication capabilities under weak signals.

[0045] The above-mentioned RF system includes a RF circuit 11, a tuning circuit 12 and a processing circuit 13. The tuning circuit 12 is configured with multiple tuning parameters. Different tuning parameters result in different directional gains of the antenna. When the communication device is in a preset communication scenario, the processing circuit 13 controls the tuning circuit 12 to adjust to the target tuning parameters, which can increase the directional gain of the antenna and improve the antenna gain of the communication device in a specific direction, so that the communication device has better communication capabilities in weak signal scenarios, thereby improving the uplink coverage capability of the communication device.

[0046] In one embodiment, Figure 7 As shown, the tuning circuit 12 includes: a gating unit 121 and a plurality of tuning units 122 .

[0047] The first end of the gating unit 121 is connected to the RF circuit 11, and multiple second ends of the gating unit 121 are correspondingly connected to multiple tuning units 122, each tuning unit 122 is connected to the antenna, and the gating unit 121 is used to switch the connection between the target tuning unit and the RF circuit 11 so that the tuning circuit 12 is adjusted to the target tuning parameters.

[0048] In application, the processing circuit 13 can be connected to the control end of the gating unit 121 , so that the processing circuit 13 can control the switch state of the gating unit 121 , thereby controlling the connection between the switching-on target tuning unit and the RF circuit 11 .

[0049] The first end of the gating unit 121 is connected to the RF circuit 11, and the multiple second ends of the gating unit 121 are correspondingly connected to the multiple tuning units 122. Therefore, by controlling the switch state of the gating unit 121, the connection between the target tuning unit and the RF circuit 11 can be switched, so that the RF signal can be transmitted to the target tuning unit through the gating unit 121, and then transmitted to the antenna through the target tuning unit, and the RF signal is transmitted through the antenna, thereby improving the directional gain of the antenna, and then improving the antenna gain of the communication device in a specific direction, so that the communication device has better communication capabilities in weak signal scenarios.

[0050] It should be noted that the gating unit 121 can also be used to conduct the receiving path to transmit the RF signal received by the antenna to the RF circuit 11 , and then the RF circuit 11 processes the RF signal and transmits it to the processing circuit 13 .

[0051] In applications, the communication device may also include directional antennas and omnidirectional antennas. Each tuning unit is connected to each antenna one by one. The antenna is switched by switching the tuning unit 122 connected thereto through the selection unit 121, so that it can be switched to a directional antenna in a preset communication scenario to achieve antenna gain in a specific direction.

[0052] In one embodiment, the tuning unit 122 includes a closed-loop tuner, and the closed-loop tuner has multiple tuning states. The impedance of the closed-loop tuner in each tuning state is different.

[0053] Among them, the closed-loop tuner can be composed of many switches and capacitors and inductors connected to the external RF port to form different combinations, that is, different tuning states. The impedance of the closed-loop tuner in each tuning state is different. Therefore, by adjusting the tuning state of the closed-loop tuner according to the real-time impedance position and the target impedance position, the impedance adjustment of the transmission path can be realized, and then the impedance position of the load can be adjusted, thereby optimizing the operating state of the RF system.

[0054] In one embodiment, Figure 8 As shown, the processing circuit 13 includes a modem 131 and a radio frequency transceiver 132 .

[0055] The modem 131 is connected to the tuning circuit 12 and is used to control the tuning circuit 12 to adjust to the target tuning parameters when the communication device is in a preset communication scenario. The RF transceiver 132 is connected to the modem 131 and the RF circuit 11 .

[0056] The modem 131 can control the tuning circuit 12 to adjust to the target tuning parameters through the mipi signal.

[0057] In the application, the adjustment demodulator can be connected to the application processor of the communication device. When the application processor recognizes that the communication device is in a preset communication scenario, it will send a corresponding first control signal to the modem 131. The modem 131 adjusts the tuning parameters of the tuning circuit 12 in response to the first control signal sent by the application processor. Corresponding to the above-mentioned embodiment, the modem 131 can be connected to the control end of the gating unit 121. The modem 131 controls the switch state of the gating unit 121 in response to the first control signal sent by the application processor, so as to control the connection between the switching-on target tuning unit and the RF circuit 11, so that the tuning circuit 12 is adjusted to the target tuning parameters, thereby increasing the directional gain of the antenna, so that the communication device has better communication capabilities in the preset communication scenario.

[0058] It should be noted that the RF transceiver 132 is used to transmit and receive RF signals, and the modulation and demodulation device is also used to perform digital signal processing on the transmitted and received signals of the RF transceiver 132 .

[0059] In another embodiment, the processing circuit 13 includes: a radio frequency transceiver 132 .

[0060] The RF transceiver 132 is connected to the RF circuit 11 and the tuning circuit 12 respectively, and is used to output a RF signal to the RF circuit 11, and control the tuning circuit 12 to adjust to the target tuning parameters when the communication device is in a preset communication scenario.

[0061] The RF transceiver 132 is configured with a transmitting port and a feedback port. The RF transceiver 132 outputs a RF signal through the transmitting port. The RF transceiver 132 may also be configured with a control port, which is connected to the control end of the tuning circuit 12 through the control port to send a switch control signal to the tuning circuit 12 to control the tuning state of the tuning circuit 12 to adjust the tuning parameters of the tuning circuit 12. For example, the RF transceiver 132 may be configured with one of a mipi (Mobile Industry Processor Interface) port and a GPIO (General Purpose Input Output) port. The RF transceiver 132 may be connected to the tuning circuit 12 through the mipi port or the GPIO port to send a switch control signal to the tuning circuit 12 to control the conduction state and improve the control efficiency.

[0062] In the application, when the application processor of the communication device recognizes that the communication device is in a preset communication scenario, it will send a corresponding second control signal to the RF transceiver 132, and the RF transceiver 132 adjusts the tuning parameters of the tuning circuit 12 in response to the second control signal sent by the application processor. Corresponding to the aforementioned embodiment, the RF transceiver 132 can be connected to the control end of the gating unit 121, and the RF transceiver 132 controls the switch state of the gating unit 121 in response to the second control signal sent by the application processor, so as to control the connection between the switching-on target tuning unit and the RF circuit 11, so that the tuning circuit 12 is adjusted to the target tuning parameters, thereby increasing the directional gain of the antenna, so that the communication device has better communication capabilities in the preset communication scenario.

[0063] In one embodiment, the RF circuit 11 includes a first transmission path and a second transmission path, wherein the number of RF devices passed through the second transmission path is less than the number of RF devices passed through the first transmission path.

[0064] The processing circuit 13 is further configured to control the second transmission path as a target transmission path of the radio frequency signal when the communication device is in a preset communication scenario.

[0065] In applications, the RF circuit 11 includes a variety of RF devices, and the RF signal is processed through the cooperation of the various RF devices.

[0066] In the related art, after the RF signal passes through each RF device in sequence, a certain power loss will occur, resulting in the maximum transmission power being limited, affecting the uplink coverage range of the communication equipment, and further affecting the user experience in a weak network environment.

[0067] It can be understood that since the RF signal will cause a certain amount of power loss when passing through the RF device, if the RF signal passes through fewer RF devices during the transmission process, the power loss during the RF signal transmission process can be reduced, the transmission power of the communication device can be increased, and the uplink coverage of the communication device can be improved. Therefore, in this embodiment, since the number of RF devices passed by the second transmission path is less than the number of RF devices passed by the first transmission path, the second transmission path is used as the target transmission path of the RF signal, which can increase the transmission power of the RF signal and thus improve the uplink coverage of the communication device.

[0068] In the application, the RF circuit 11 may include a variety of RF devices such as RF power amplifiers, filters, duplexers and RF switches, and the RF devices that the second transmission path may not pass through relative to the first transmission path may include at least one of the above-mentioned RF devices. It should be noted that the RF signal may include three or even more transmission paths, and the number of RF devices passed through each transmission path is different. The processing circuit 13 determines the corresponding transmission path as the target transmission path of the RF signal according to actual needs. For example, weak signal scenarios can be graded, and different levels of weak signal scenarios correspond to different transmission paths. The processing circuit 13 controls the corresponding transmission path as the target transmission path of the RF signal based on the weak signal scenario in which the communication device is located and the level.

[0069] In this embodiment, the processing circuit 13 is also used to control the second transmission path as the target transmission path of the radio frequency signal when the communication device is in a preset communication scenario, which can increase the transmission power of the radio frequency signal and thereby increase the uplink coverage range of the communication device, thereby improving the communication capability of the communication device in a weak signal scenario and improving the user experience of the user in a weak network environment.

[0070] In one embodiment, Fig. 9 As shown, the radio frequency circuit 11 includes: a power amplifier circuit 111 , a first switch circuit 112 , a filter circuit 113 and a second switch circuit 114 .

[0071] The power amplifier circuit 111 may include a radio frequency power amplifier, which is used to support power amplification processing of radio frequency signals. The power amplifier circuit 111 can receive radio frequency signals and power amplify the received radio frequency signals to transmit the power-amplified radio frequency signals to the antenna for transmission through the antenna. Among them, the radio frequency signal can be a signal of a network standard such as GSM (Global System for Mobile Communications), UMTS (Universal Mobile Telecommunications System), LTE (Long Term Evolution) and NR (New Radio), and each network standard may include multiple frequency bands. Optionally, taking the 5G NR network standard as an example, the 5G NR signal includes a low frequency signal, a medium frequency signal, a high frequency signal and an ultra-high frequency signal.

[0072] The filter circuit 113 may include a filter, and the filter is used to filter the radio frequency signal.

[0073] Among them, the input end of the power amplifier circuit 111 is connected to the processing circuit 13, the output end of the power amplifier circuit 111 is connected to the first end of the first switch circuit 112, a second end of the first switch circuit 112 is connected to the antenna via the second switch circuit 114, and the remaining second end of the first switch circuit 112 is connected to the antenna via the filter circuit 113 and the second switch circuit 114.

[0074] Optionally, the first switch circuit 112 may include a first switch unit, the second switch circuit 114 may include a second switch unit, the output end of the power amplifier circuit 111 is connected to the first end of the first switch unit, and a second end of the first switch unit is connected to the antenna via the second switch unit. The first switch unit and the second switch unit may be single-pole multi-throw switches.

[0075] It can be understood that by controlling the switch states of the first switch circuit 112 and the second switch circuit 114, the transmission path of the radio frequency signal can be controlled. When the first switch circuit 112 switches on the power amplifier circuit 111 and the second switch circuit 114, and the second switch unit switches on the power amplifier circuit 111 and the antenna, the radio frequency signal is transmitted to the antenna via the power amplifier circuit 111, the first switch circuit 112, and the second switch circuit 114, and is transmitted via the antenna. When the first switch circuit 112 switches on the power amplifier circuit 111 and the filter circuit 113, and the second switch unit switches on the filter circuit 113 and the antenna, the radio frequency signal is transmitted to the antenna via the power amplifier circuit 111, the first switch circuit 112, the filter circuit 113, and the second switch circuit 114, and is transmitted via the antenna.

[0076] It should be noted that the second transmission path may include a power amplifier circuit 111, a first switch circuit 112, and a second switch circuit 114, and the first transmission path may include a power amplifier circuit 111, a first switch circuit 112, a filter circuit 113, and a second switch circuit 114. The second transmission path is not subjected to the filter circuit 113 relative to the first transmission path. Therefore, when the second transmission path is used as the target transmission path of the radio frequency signal, since the second transmission path is not subjected to the filter circuit 113, the filter circuit 113 will not cause power loss. Therefore, using the second transmission path as the target transmission path of the radio frequency signal can increase the transmission power, thereby improving the communication capability of the terminal device.

[0077] In one embodiment, the processing circuit 13 is further configured to control the conduction state of the first switch circuit 112 and the second switch circuit 114 when the communication device is in a preset communication scenario, so as to connect the first switch circuit 112 with the second switch circuit 114 .

[0078] In combination with the above embodiments, it can be understood that the processing circuit 13 is also used to control the conduction state of the first switch circuit 112 and the second switch circuit 114 when the communication device is in a preset communication scenario, so that the first switch circuit 112 is connected to the second switch circuit 114. At this time, the radio frequency signal is transmitted to the antenna through the power amplifier circuit 111, the first switch circuit 112 and the second switch circuit 114, and is transmitted through the antenna. The radio frequency signal does not pass through the filter circuit 113, and the filter circuit 113 does not cause power loss. Therefore, the transmission power can be increased, thereby improving the communication capability of the terminal device.

[0079] In another embodiment, Fig.10 As shown, the radio frequency circuit 11 includes: a power amplifier circuit 111 , a first switch circuit 112 , a filter circuit 113 and a second switch circuit 114 .

[0080] The input end of the power amplifier circuit 111 is connected to the processing circuit 13, the output end of the power amplifier circuit 111 is connected to the first end of the first switch circuit 112, a second end of the first switch circuit 112 is connected to the antenna via the second switch circuit 114 and the tuning circuit 12, and the remaining second end of the first switch circuit 112 is connected to the antenna via the filter circuit 113, the second switch circuit 114, and the tuning circuit 12.

[0081] It can be understood that by controlling the switch states of the first switch circuit 112 and the second switch circuit 114, the transmission path of the radio frequency signal can be controlled. When the first switch circuit 112 switches on the power amplifier circuit 111 and the second switch circuit 114, and the second switch unit switches on the power amplifier circuit 111 and the tuning circuit 12, the radio frequency signal is transmitted to the antenna via the power amplifier circuit 111, the first switch circuit 112, the second switch circuit 114, and the tuning circuit 12, and is transmitted via the antenna. When the first switch circuit 112 switches on the power amplifier circuit 111 and the filter circuit 113, and the second switch unit switches on the filter circuit 113 and the tuning circuit 12, the radio frequency signal is transmitted to the antenna via the power amplifier circuit 111, the first switch circuit 112, the filter circuit 113, the second switch circuit 114, and the tuning circuit 12, and is transmitted via the antenna.

[0082] The second transmission path may include a power amplifier circuit 111 , a first switch circuit 112 , and a second switch circuit 114 , and the first transmission path may include a power amplifier circuit 111 , a first switch circuit 112 , a filter circuit 113 , and a second switch circuit 114 .

[0083] When the communication device is in a preset communication scenario, the processing circuit 13 can control the second transmission path as the target transmission path of the radio frequency signal, and control the tuning circuit 12 to adjust to the target tuning parameter. This reduces power loss while increasing the directional gain of the antenna, maximizes the communication capability of the communication device in the preset communication scenario, and ensures the user's communication experience in a weak signal environment.

[0084] In one embodiment, the processing circuit 13 includes: a radio frequency transceiver 132 .

[0085] The RF transceiver 132 is connected to the RF circuit 11 and the tuning circuit 12 respectively, and is used to control the second transmission path as the target transmission path of the RF signal when the communication device is in a preset communication scenario.

[0086] In the application, when the application processor of the communication device recognizes that the communication device is in a preset communication scenario, it will send a corresponding third control signal to the RF transceiver 132. The RF transceiver 132 controls the second transmission path as the target transmission path of the RF signal in response to the third control signal sent by the application processor, thereby increasing the transmission power. Corresponding to the aforementioned embodiment, the RF transceiver 132 can be connected to the control end of the first switch circuit 112 and the second switch circuit 114. The RF transceiver 132 controls the switch state of the first switch circuit 112 and the second switch circuit 114 in response to the third control signal, so that the transmission path of the RF signal can be controlled to be the second transmission path, thereby reducing power loss and increasing transmission power, so that the communication device has better communication capabilities in the preset communication scenario.

[0087] Based on the above embodiments, in one embodiment, the structure of the radio frequency system can be as follows: Fig.11 As shown, the radio frequency system includes a modem 131, a radio frequency transceiver 132, a power amplifier circuit 111, a first switch circuit 112, a filter circuit 113, a second switch circuit 114, a gating unit 121 and a plurality of tuning units 122. The modem 131 is connected to the radio frequency transceiver 132, and the radio frequency transceiver 132 is respectively connected to the power amplifier circuit 111, the first switch circuit 112, the second switch circuit 114 and the gating unit 121, the power amplifier circuit 111 is connected to a first end of the first switch circuit 112, a second end of the first switch circuit 112 is connected to a first end of the gating unit 121 via the second switch circuit 114, the remaining second ends of the first switch circuit 112 are connected to a first end of the gating unit 121 via the filter circuit 113 and the second switch circuit 114, and a plurality of second ends of the gating unit 121 are correspondingly connected to a plurality of tuning units 122, and each tuning unit 122 is respectively connected to an antenna.

[0088] Among them, the processing circuit 13 can control the switch states of the first switch circuit 112, the second switch circuit 114 and the gating unit 121 when the communication device is in a preset communication scenario, so that the radio frequency signal is transmitted to the antenna through the power amplifier circuit 111, the first switch circuit 112, the second switch circuit 114, the gating unit 121, and the target tuning unit, that is, the second transmission path is used as the target transmission path of the radio frequency signal, and the tuning circuit 12 is controlled to adjust to the target tuning parameter. In this way, the power loss is reduced while the directional gain of the antenna is increased, the communication capability of the communication device in the preset communication scenario is maximized, and the communication experience of the user in a weak signal environment is guaranteed.

[0089] Based on the same inventive concept, the present application also provides a communication device, which includes an antenna and a radio frequency system as in any of the above embodiments, and the antenna is connected to the radio frequency system.

[0090] The communication device may be a handheld device, an in-vehicle device, a smart car, a wearable device, a computing device or other processing device connected to a wireless modem, as well as various forms of user equipment (UE) (e.g., a mobile phone), a mobile station (MS), etc.

[0091] The communication device may be a terminal, and its internal structure diagram may be as follows: Fig.12 As shown. The communication device includes a processor, a memory, an input / output interface, a communication interface, a display unit and an input device. Among them, the processor, the memory and the input / output interface are connected through a system bus, and the communication interface, the display unit and the input device are connected to the system bus through the input / output interface. Among them, the processor of the communication device is used to provide computing and control capabilities. The memory of the communication device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The input / output interface of the communication device is used to exchange information between the processor and the external device. The communication interface of the communication device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be achieved through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. The display unit of the communication device is used to form a visually visible picture, which can be a display screen, a projection device or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen, and the input device of the communication device can be a touch layer covering the display screen, or a button, trackball or touchpad set on the communication device housing, or an external keyboard, touchpad or mouse.

[0092] The above-mentioned communication device includes a radio frequency circuit, a tuning circuit, a processing circuit and an antenna. The tuning circuit is configured with multiple tuning parameters. Different tuning parameters result in different directional gains of the antenna. When the communication device is in a preset communication scenario, the processing circuit controls the tuning circuit to adjust to the target tuning parameters, which can increase the directional gain of the antenna and improve the antenna gain of the communication device in a specific direction, so that the communication device has better communication capabilities in weak signal scenarios, thereby improving the uplink coverage capability of the communication device.

[0093] In one embodiment, a communication device includes: an application processor.

[0094] The application processor is used to perform scene recognition based on scene detection information, and when it is recognized that the communication device is in a preset communication scene, output a control signal corresponding to the preset communication scene to the processing circuit, wherein the scene detection information includes at least one of location information, sensor detection information and network information parameter information.

[0095] The communication device may include a sensor, such as at least one of a gravity sensor, an acceleration sensor, a gyroscope, a geomagnetic sensor, and a pressure sensor, and the sensor detection information may be obtained through the sensor. The location information of the communication device may be obtained through a satellite positioning system, for example, the location information of the communication device may be obtained through at least one of a GPS positioning system and a Beidou positioning system. A corresponding network signal model may be pre-established in the communication device, and the network information parameter information in the current scenario may be obtained based on the network signal model.

[0096] Based on the scene detection information, the environment and network status of the communication device can be determined, such as weak signal scenes such as elevators, basements, offshore, deserts, forests, and mountains. Then, when it is identified that the communication device is in a preset communication scene, a control signal corresponding to the preset communication scene is output to the processing circuit, so that the processing circuit responds to the control signal to control the tuning circuit to adjust to the target tuning parameters, increase the directional gain of the communication device antenna, thereby improving the communication capability in the current scene and improving the user's communication experience in the current scene.

[0097] In one embodiment, the application processor is further configured to control the communication device to output antenna maximum gain direction prompt information when recognizing that the communication device is in a preset communication scenario.

[0098] The prompt information may include at least one of voice information and image information.

[0099] The communication device may include a display unit, the display unit is used to form a visually visible picture, and the display unit may be a display screen. The display screen may be a liquid crystal display screen or an electronic ink display screen. Exemplarily, when the application processor recognizes that the communication device is in a preset communication scenario, it may control the display unit to display a signal direction prompt image, and may output voice prompt information for assistance, so as to help the user quickly determine the maximum gain direction of the directional antenna.

[0100] In this embodiment, when the application processor recognizes that the communication device is in a preset communication scenario, it controls the communication device to output prompt information about the direction of the maximum gain of the antenna, which can help the user quickly determine the direction of the maximum gain of the directional antenna, thereby improving the communication capability of the communication device in a weak signal scenario.

[0101] Based on the same inventive concept, the present application also provides a communication control method, which can be applied to the communication device of the above embodiment. The following is an example of the communication control method being applied to the communication device of the above embodiment. Fig.13 As shown, the communication control method includes the following steps S1301 and S1302.

[0102] S1301: Identify the scene in which the communication device is located based on scene detection information, wherein the scene detection information includes at least one of location information, sensor detection information, and network information parameter information, the communication device is configured with at least a normal working mode and a directional working mode, and the antenna directional gain of the communication device in the directional working mode is greater than the antenna directional gain in the normal working mode.

[0103] Among them, when the communication device is in the normal working mode, the antenna of the communication device performs omnidirectional radiation to ensure the omnidirectional radiation performance of the antenna, thereby meeting the use of normal scenarios. When the communication device is in the directional working mode, the communication device can concentrate the transmission power in a predetermined direction, greatly enhance the energy in this predetermined direction, and then achieve the antenna gain in the predetermined direction.

[0104] The communication device may include at least one of a gravity sensor, an acceleration sensor, a gyroscope, a geomagnetic sensor, a pressure sensor, etc., and the sensor detection information may be obtained through the sensor. The location information of the communication device may be obtained through a satellite positioning system, for example, the location information of the communication device may be obtained through at least one of a GPS positioning system and a Beidou positioning system. A corresponding network signal model may be pre-established in the communication device, and the network information parameter information in the current scenario may be obtained based on the network signal model.

[0105] Based on the scene detection information, the environment in which the communication equipment is located and the network status can be determined, such as weak signal scenes such as elevators, basements, offshore, deserts, forests, and mountains.

[0106] S1302: When it is identified that the communication device is in a preset communication scenario, control the communication device to operate in a directional operation mode.

[0107] It can be understood that when it is identified that the communication device is in a preset communication scenario, controlling the communication device to operate in a directional working mode can increase the antenna gain of the communication device in a predetermined direction, thereby improving the communication capability in the preset communication scenario and improving the user's communication experience in the preset communication scenario.

[0108] The above-mentioned communication control method can identify the scene in which the communication device is located based on the scene detection information. When it is identified that the communication device is in a preset communication scene, the radio frequency circuit is controlled to operate in a directional working mode, which can improve the antenna gain of the communication device in a specific direction, so that the communication device has better communication capabilities in weak signal scenarios, thereby improving the uplink coverage capability of the communication device.

[0109] In one embodiment, the communication device includes a tuning circuit, which is located on the transmission path of the radio frequency signal; controlling the communication device to operate in a directional working mode includes: controlling the tuning circuit to adjust to a target tuning parameter corresponding to the directional working mode.

[0110] Among them, the tuning circuit is configured with multiple tuning parameters, and different tuning parameters result in different directional gains of the antenna. Therefore, multiple tuning states of the tuning circuit can be predetermined, and the tuning parameters corresponding to each tuning state are different. At least the tuning states corresponding to the normal working mode and the directional working mode can be set. When the tuning circuit is in the tuning state corresponding to the normal working mode, the antenna radiates omnidirectionally to ensure the omnidirectional radiation performance of the antenna, thereby meeting the use of normal scenarios. When the tuning circuit is in the tuning state corresponding to the directional working mode, the radio frequency system can concentrate the transmission power in a predetermined direction, and the energy in this predetermined direction is greatly enhanced, thereby achieving the antenna gain in the predetermined direction, thereby improving the communication capability in the preset communication scenario, and improving the user's communication experience in the preset communication scenario.

[0111] In one embodiment, the communication device is configured with a first transmission path and a second transmission path, and the number of RF devices passed by the second transmission path is less than the number of RF devices passed by the first transmission path; the method also includes: when it is identified that the communication device is in a normal scenario, controlling the first transmission path as the target transmission path of the RF signal; when it is identified that the communication device is in a preset communication scenario, controlling the second transmission path as the target transmission path of the RF signal.

[0112] It can be understood that since the RF signal will cause a certain power loss when passing through the RF device, if the RF device through which the RF signal passes during the transmission process is reduced, the power loss during the transmission of the RF signal can be reduced, the transmission power of the communication device can be increased, and the uplink coverage of the communication device can be improved. Therefore, when it is identified that the communication device is in a normal scenario, since there is no need for excessively high transmission power in the normal scenario, the first transmission path is controlled as the target transmission path of the RF signal, thereby ensuring the processing effect of the RF signal. When it is identified that the communication device is in a preset communication scenario, the second transmission path is controlled as the target transmission path of the RF signal, thereby increasing the transmission power in the preset communication scenario to improve the communication capability in a weak signal environment.

[0113] In combination with the above embodiments, in the application, when it is identified that the communication device is in a preset communication scenario, the second transmission path can be controlled as the target transmission path of the radio frequency signal, and the tuning circuit can be controlled to adjust to the target tuning parameters. This reduces power loss, increases the transmission power, and increases the directional gain of the antenna, maximizing the communication capability of the communication device in the preset communication scenario, and ensuring the user's communication experience in a weak signal environment.

[0114] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

[0115] In the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic description of the above terms does not necessarily refer to the same embodiment or example.

[0116] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0117] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A radio frequency system, applied to a communication device, characterized in that: include: A radio frequency circuit, used to support transmission processing of radio frequency signals; A tuning circuit connected to the radio frequency circuit and the antenna, wherein the tuning circuit is configured with a plurality of tuning parameters, wherein different tuning parameters result in different directional gains of the antenna; The processing circuit is connected to the radio frequency circuit and the tuning circuit respectively, and is used to control the tuning circuit to adjust to the target tuning parameters to increase the directional gain of the antenna when the communication device is in a preset communication scenario, wherein the communication capability of the communication device in the preset communication scenario is lower than the communication capability of the communication device in a normal communication scenario.

2. The radio frequency system according to claim 1, characterized in that: The tuning circuit includes: a gating unit and multiple tuning units, the first end of the gating unit is connected to the RF circuit, the multiple second ends of the gating unit are correspondingly connected to the multiple tuning units, each of the tuning units is connected to an antenna, and the gating unit is used to switch on the connection between the target tuning unit and the RF circuit so that the tuning circuit is adjusted to the target tuning parameters.

3. The radio frequency system according to claim 2, characterized in that: The processing circuit comprises: a modem connected to the tuning circuit, and configured to control the tuning circuit to adjust to the target tuning parameters when the communication device is in a preset communication scenario; A radio frequency transceiver is connected to the modem and the radio frequency circuit.

4. The radio frequency system according to claim 2, characterized in that: The processing circuit comprises: A radio frequency transceiver is connected to the radio frequency circuit and the tuning circuit respectively, and is used to output the radio frequency signal to the radio frequency circuit, and control the tuning circuit to adjust to the target tuning parameter when the communication device is in a preset communication scenario.

5. The radio frequency system according to claim 1, characterized in that: The radio frequency circuit comprises a first transmission path and a second transmission path, wherein the number of radio frequency devices passed by the second transmission path is less than the number of radio frequency devices passed by the first transmission path; The processing circuit is further configured to control the second transmission path as a target transmission path for the radio frequency signal when the communication device is in a preset communication scenario.

6. The radio frequency system according to claim 5, characterized in that: The radio frequency circuit includes: a power amplifier circuit, a first switch circuit, a filter circuit, and a second switch circuit; wherein, The input end of the power amplifier circuit is connected to the processing circuit, the output end of the power amplifier circuit is connected to the first end of the first switch circuit, a second end of the first switch circuit is connected to the antenna via the second switch circuit, and the remaining second end of the first switch circuit is connected to the antenna via the filter circuit and the second switch circuit; Wherein, the second transmission path does not pass through the filtering circuit relative to the first transmission path.

7. The radio frequency system according to claim 6, characterized in that: The processing circuit is further configured to control the conduction state of the first switch circuit and the second switch circuit when the communication device is in a preset communication scenario, so that the first switch circuit is connected to the second switch circuit.

8. The radio frequency system according to claim 6, characterized in that: The processing circuit comprises: A radio frequency transceiver is connected to the radio frequency circuit and the tuning circuit respectively, and is used to control the second transmission path as the target transmission path of the radio frequency signal when the communication device is in a preset communication scenario.

9. A communication device, characterized in that: The invention comprises an antenna and a radio frequency system as claimed in any one of claims 1 to 8, wherein the antenna is connected to the radio frequency system.

10. The communication device according to claim 9, characterized in that The communication device comprises: An application processor is used to perform scene recognition based on scene detection information, and when it is recognized that the communication device is in a preset communication scene, output a control signal corresponding to the preset communication scene to the processing circuit, wherein the scene detection information includes at least one of location information, sensor detection information and network information parameter information.

11. The communication device according to claim 10, characterized in that The application processor is further configured to control the communication device to output antenna maximum gain direction prompt information when identifying that the communication device is in the preset communication scenario.

12. A communication control method, characterized in that: The method comprises: Identifying a scene in which the communication device is located according to scene detection information, wherein the scene detection information includes at least one of location information, sensor detection information, and network information parameter information, the communication device is configured with at least a normal working mode and a directional working mode, and the antenna directional gain of the communication device in the directional working mode is greater than the antenna directional gain in the normal working mode; When it is identified that the communication device is in a preset communication scenario, the communication device is controlled to operate in the directional working mode, wherein the communication capability of the communication device in the preset communication scenario is lower than the communication capability of the communication device in a normal communication scenario.

13. The communication control method according to claim 12, characterized in that: The communication device comprises a tuning circuit, wherein the tuning circuit is located on a transmission path of a radio frequency signal; The controlling the communication device to operate in the directional operation mode comprises: The tuning circuit is controlled to adjust to a target tuning parameter corresponding to the directional working mode.

14. The communication control method according to claim 12, characterized in that: The communication device is configured with a first transmission path and a second transmission path, the number of radio frequency devices passed by the second transmission path is less than the number of radio frequency devices passed by the first transmission path; the method further includes: When it is identified that the communication device is in a normal scenario, controlling the first transmission path as a target transmission path for radio frequency signals; When it is identified that the communication device is in a preset communication scenario, the second transmission path is controlled as a target transmission path of the radio frequency signal.

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