CN115021774A - Radio frequency system, antenna selection method and communication device - Google Patents
Radio frequency system, antenna selection method and communication device Download PDFInfo
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- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
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- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0404—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas the mobile station comprising multiple antennas, e.g. to provide uplink diversity
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Abstract
The embodiment of the application relates to a radio frequency system, an antenna selection method and communication equipment, wherein the radio frequency system comprises: at least three first antennas; the first communication module is used for respectively receiving and transmitting a first communication signal of a first standard and a second communication signal of a second standard, wherein the first communication signal and the second communication signal are near field communication signals of a first frequency band; the first end of the first switch module is connected with the first communication module, a plurality of second ends of the first switch module are respectively connected with the plurality of first antennas in a one-to-one correspondence manner, and the first switch module is used for selectively conducting a radio frequency path between the first communication module and any one of the first antennas. The first switch module can select the antenna from at least three first antennas, so that a more flexible switching function is realized, and a radio frequency system with better communication quality is provided.
Description
Technical Field
The embodiment of the application relates to the technical field of communication, in particular to a radio frequency system, an antenna selection method and communication equipment.
Background
With the continuous development of radio frequency communication technology, communication equipment can generally support near field communication functions of multiple different communication systems. However, there may be some mutual interference and conflict problems between different communication functions, thereby causing a stuck phenomenon during communication.
Disclosure of Invention
In view of the above, it is necessary to provide a radio frequency system, an antenna selection method, and a communication device capable of improving communication quality.
In a first aspect, the present application provides a radio frequency system, comprising:
at least three first antennas;
the first communication module is used for respectively receiving and transmitting a first communication signal of a first standard and a second communication signal of a second standard, wherein the first communication signal and the second communication signal are near field communication signals of a first frequency band;
the first end of the first switch module is connected with the first communication module, a plurality of second ends of the first switch module are respectively connected with the plurality of first antennas in a one-to-one correspondence manner, and the first switch module is used for selectively conducting a radio frequency path between the first communication module and any one of the first antennas.
In a second aspect, the present application provides an antenna selection method, including:
the method comprises the steps of obtaining a communication application scene of a radio frequency system, wherein the radio frequency system comprises a plurality of first antennas and a first communication module with a first communication function and a second communication function, the first communication function is used for supporting receiving and sending processing of first communication signals of a first standard, the second communication function is used for supporting receiving and sending processing of second communication signals of a second standard, and the first communication signals and the second communication signals are near field communication signals of a first frequency band;
when the communication application scene is a preset scene, acquiring the on-off state of each communication function;
and executing a corresponding switching strategy according to the switching state of each communication function so as to determine a first target antenna for transceiving a first communication signal and/or a second target antenna for transceiving a second communication signal, wherein the first target antenna and the second target antenna are respectively one of the plurality of first antennas.
In a third aspect, the present application provides a communication device comprising a radio frequency system as described above.
In a fourth aspect, the present application provides a communication device comprising a processor configured to perform the antenna selection method as described above.
According to the radio frequency system, the antenna selection method and the communication equipment, in the radio frequency system, the first communication module has the communication function of two systems, so that the communication function under two scenes of coexistence and non-coexistence can be realized, and the communication flexibility of the radio frequency system is improved. Moreover, because the radio frequency system is provided with at least three first antennas and the first switch modules connected with all the antennas, the first switch modules can select the antennas from the at least three first antennas according to the specific system of the first communication module for communication at present, so that the proper first antenna is determined, a more flexible switching function is realized, and the radio frequency system with better communication quality is provided.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or related technologies of the present application, the drawings needed to be used in the description of the embodiments or related technologies are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a block diagram of an embodiment of a radio frequency system;
FIG. 2 is a second block diagram of the RF system according to an embodiment;
fig. 3 is a third block diagram of an exemplary rf system;
FIG. 4 is a block diagram of an embodiment of a RF system;
FIG. 5 is a block diagram of an embodiment of a radio frequency system;
FIG. 6 is a flowchart of an antenna selection method according to an embodiment;
fig. 7 is a second flowchart of an antenna selection method according to an embodiment;
fig. 8 is a third flowchart of an antenna selection method according to an embodiment;
fig. 9 is a fourth flowchart of an antenna selection method according to an embodiment.
Element number description:
a first communication module: 110; a second communication module: 120 of a solvent; a first switch module: 210; a second switch module: 220, 220; a combiner: 300, respectively; a filter: 400.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, a first standard may be referred to as a second standard, and similarly, a second standard may be referred to as a first standard, without departing from the scope of the present application. Both the first system and the second system are systems, but they are not the same system.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. In the description of the present application, "a number" means at least one, such as one, two, etc., unless specifically limited otherwise.
The embodiment of the application provides a radio frequency system, which can be applied to communication equipment to realize the radio frequency function of the communication equipment. Communication devices include, but are not limited to, smart phones, personal computers (e.g., tablet, desktop, notebook, netbook, palmtop), mobile phones, e-book readers, portable multimedia players, audio/video players, cameras, virtual reality devices, wearable devices, and the like.
Fig. 1 is a block diagram of a radio frequency system according to an embodiment, and referring to fig. 1, in one embodiment, the radio frequency system includes a first communication module 110, a first switch module 210, and at least three first antennas, and ANT0, ANT1, and ANT2 in fig. 1 are three first antennas, respectively.
The first communication module 110 is configured to respectively receive and transmit a first communication signal of a first standard and a second communication signal of a second standard, where the first communication signal and the second communication signal are both near field communication signals of a first frequency band. Specifically, the transceiving processing refers to the process of realizing conversion and inverse conversion between digital signals and radio frequency signals. The conversion process includes, for example, framing of the digital signal, conversion of the digital-to-analog signal, modulation, up-conversion, signal amplification, and the like. The inverse conversion process includes, for example, signal amplification, down conversion, demodulation, conversion of analog-to-digital signals, decapsulation, and the like. The communication system of the proximity communication signal includes, but is not limited to, Bluetooth (BT), WIFI, and the like. In the embodiments of the present application, the first standard is bluetooth, and the second standard is WIFI, for example, the first communication signal is a bluetooth communication signal, and the second communication signal is a WIFI communication signal. The first frequency band is a frequency band in which both the first system and the second system can communicate. For example, if the first standard is bluetooth and the second standard is WIFI, the first frequency band may be a 2.4G frequency band.
A first end of the first switch module 210 is connected to the first communication module 110, a plurality of second ends of the first switch module 210 are respectively connected to the plurality of first antennas in a one-to-one correspondence manner, and the first switch module 210 is configured to selectively turn on a radio frequency path between the first communication module 110 and any one of the first antennas. Meanwhile, at least three first antennas are arranged at different positions of the communication device, so that different first antennas have different radio frequency performances. Accordingly, the transceiving quality of the first antenna may also vary with the communication application scenario, the system of the communication signal, and the like. In this embodiment, based on the hardware structure of the rf system, the first switch module 210 can select an antenna from at least three first antennas, so as to implement a more flexible switching function, thereby providing an rf system with better communication quality. For example, the first switch module 210 may determine a first antenna with better communication quality according to the system of the near field communication signal currently received and transmitted by the first communication module 110, and turn on the first antenna with the first communication module 110, so as to implement accurate receiving and transmitting of the communication signal. It should be understood that the above examples are for illustration only and are not intended to limit the scope of the present embodiments.
Fig. 2 is a second block diagram of the structure of the rf system according to an embodiment, and referring to fig. 2, in one embodiment, the rf system further includes a second communication module 120 and a combiner 300.
The second communication module 120 is configured to receive and transmit a third communication signal of the second standard, where the third communication signal is a near field communication signal of the second frequency band. For example, taking the second standard as WIFI, the second frequency band may be a 5G frequency band. The first communication module 110 and the second communication module 120 may be integrated in the same rf chip. Two first ends of the combiner 300 are respectively connected to the first communication module 110 and the second communication module 120 in a one-to-one correspondence manner, and a second end of the combiner 300 is connected to a first end of the first switch module 210. In this embodiment, the combiner 300 may combine the communication signals of the first frequency band and the second frequency band. Specifically, when transmitting the signal, the combiner 300 may combine the first communication signal output by the first communication module 110 and the third communication signal output by the second communication module 120, and transmit the combined signals through the same first antenna. In signal reception, for signals from the same first antenna, the combiner 300 may perform frequency-band-based division to obtain a first communication signal and a third communication signal, and transmit the first communication signal and the third communication signal to the first communication module 110 and the second communication module 120 in a one-to-one correspondence manner, respectively. In this embodiment, through the combining function of the combiner 300, the first communication module 110 and the second communication module 120 may perform signal transceiving in a frequency division multiplexing mode, so as to improve the communication rate of the radio frequency system without increasing the number of antennas.
Fig. 3 is a third block diagram of a structure of a radio frequency system according to an embodiment, referring to fig. 3, in one embodiment, the radio frequency system further includes a second switch module 220, a second communication module 120, and a plurality of second antennas, where ANT3 and ANT4 in fig. 3 are two second antennas, respectively.
The second communication module 120 is configured to receive and transmit a third communication signal of the second standard, where the third communication signal is a near field communication signal of the second frequency band. For example, taking the second standard as WIFI, the second frequency band may be a 5G frequency band. A first end of the second switch module 220 is connected to the second communication module 120, and a plurality of second ends of the second switch module 220 are respectively connected to the plurality of second antennas in a one-to-one correspondence manner. It can be understood that, in the radio frequency system in the embodiment of fig. 2, communication signals of different systems and different frequency bands are transmitted and received by the same first antenna after passing through the combiner 300. It can be understood that the radio frequency requirements of different communication signals are not exactly the same, and if the same antenna is used for transmitting and receiving, it is not possible to ensure that the communication signals of each system have better communication quality. Therefore, in this embodiment, by providing the plurality of second antennas, the communication signals of different systems and different frequency bands can be respectively received and transmitted by the first antenna and the second antenna, so that the communication signal of each system has better communication quality, and the overall communication quality of the radio frequency system in the scene can be improved.
Fig. 4 is a fourth block diagram of the rf system according to an embodiment, and fig. 5 is a fifth block diagram of the rf system according to an embodiment, with reference to fig. 4 and fig. 5, in which the rf system further includes a filter 400 according to an embodiment. Specifically, referring to fig. 4, when the radio frequency system includes the combiner 300, the first communication module 110 is connected to a first end of the combiner 300 through the filter 400. Referring to fig. 5, when the radio frequency system does not include the combiner 300, the first communication module 110 is connected to the first terminal of the first switching module 210 through the filter 400. In this embodiment, the filter 400 is configured to perform filtering processing on the signal in the first frequency band, so as to improve the quality of the first communication signal and the second communication signal in the first frequency band.
In one embodiment, the rf system further includes a control module, which is connected to the first switch module 210 to control the first switch module 210 to switch on the required first antenna.
Specifically, the control module is configured to acquire an on-off state of each communication function, where the first communication function is configured to support transceiving processing of the first communication signal, and the second communication function is configured to support transceiving processing of the second communication signal. Wherein, through the control button in the UI interface of communication equipment, the user can control the on-off state of first communication function and second communication function respectively. It is understood that when the communication function is turned on, whether the communication module actually performs communication of the corresponding function is determined by an application program that is run by the communication device in real time. Optionally, the control module may obtain the switch states of the first communication function and the second communication function respectively by monitoring a system broadcast information mode carrying the switch state. The control module is further used for executing a corresponding switching strategy according to the switch state of each communication function so as to determine a first target antenna for transceiving a first communication signal and/or a second target antenna for transceiving a second communication signal. Wherein the first target antenna and the second target antenna are respectively one of the plurality of first antennas. It can be understood that, according to the on-off state of each communication function, corresponding antenna selection can be performed only for the turned-on communication function, so that the time required for antenna selection is shortened, and the communication efficiency is further improved.
Further, when the first communication function and the second communication function are both turned on, the control module may control the first switch module 210 to continuously switch, so that the first communication module 110 respectively receives and transmits the first communication signal and the second communication signal in a time division multiplexing mode. The time division multiplexing mode is that the first communication module 110 respectively receives and transmits the first communication signal and the second communication signal in different time periods. That is, the first communication signal is transmitted and received during a part of the time period, and the second communication signal is transmitted and received during another part of the time period.
An embodiment of the present application further provides an antenna selection method, and fig. 6 is one of flowcharts of the antenna selection method in the embodiment, where the antenna selection method in this embodiment may be applied to a radio frequency system shown in the embodiment of fig. 1, where the radio frequency system includes multiple first antennas and a first communication module 110 having a first communication function and a second communication function, the first communication function is used to support transceiving processing of a first communication signal in a first standard, the second communication function is used to support transceiving processing of a second communication signal in a second standard, and the first communication signal and the second communication signal are both near field communication signals in a first frequency band. Referring to fig. 6, the antenna selection method includes steps 602 to 606.
Specifically, the communication application scenario refers to a scenario determined by the currently running application program and external environment factors of the radio frequency system, wherein the external environment information includes, but is not limited to, attitude information. The communication application scene includes, but is not limited to, an information chat scene, an audio chat scene, a video chat scene, a game scene, a song listening scene, and the like. For example, if the currently running application program is a game program, the holding direction of the communication device is horizontal, and the top antenna is blocked, it may be determined that the current communication application scene is a landscape holding game scene. For another example, if the currently running application is a music-type program and the communication device is in a screen saver state, it may be determined that the current communication application scene is a pocket song listening scene. It is understood that the above two examples are only for illustration and are not intended to limit the scope of the present embodiment.
Specifically, if the current communication application scenario is a preset scenario, it may be considered that the current communication application scenario has a larger communication requirement. In this case, antenna selection needs to be performed according to the current operating condition of the radio frequency system, so as to ensure the communication quality of the radio frequency system.
Wherein the first target antenna and the second target antenna are respectively one of the plurality of first antennas. Specifically, by acquiring the on-off state of each communication function, corresponding antenna selection can be performed only on the opened communication function, so that the time required by antenna selection is shortened, the communication efficiency is further improved, and the experience of a user in each communication application scene is improved.
In one embodiment, the first communication function is configured with a corresponding first candidate antenna group, where the first candidate antenna group includes multiple first antennas. Specifically, the first alternative antenna group may include only a part of the first antennas in the radio frequency system, and the transceiving quality of each first antenna in the first alternative antenna group to the first communication signal is better than that of each other first antenna. For example, if the radio frequency system includes three first antennas, the first alternative antenna group may include two of the first antennas, such as ANT1 and ANT2 in fig. 1. That is, the first antenna ANT0 outside the first alternative antenna group has poor transceiving quality for the first communication signal.
Based on the above-mentioned setting manner of the first alternative antenna group, fig. 7 is a second flowchart of an antenna selection method according to an embodiment, and referring to fig. 7, in one embodiment, the antenna selection method includes steps 702 to 706. That is, the step 606 of executing the corresponding switching policy according to the switching state of each communication function includes the following step 706.
Step 704, when the communication application scene is a preset scene, acquiring the on-off state of each communication function.
In one embodiment, the determining one first antenna of the first alternative antenna group as the first target antenna comprises: respectively acquiring first network information when each first antenna in the first alternative antenna group receives and transmits the first communication signal; determining one of the first candidate antenna groups as the first target antenna according to a plurality of the first network information. Specifically, the first network information includes, but is not limited to, a Received Signal Strength Indicator (RSSI), a packet loss rate, a Signal-to-Noise Ratio (SNR), and the like. In this embodiment, by obtaining the plurality of first network information, the transceiving quality of each first antenna for the first communication signal can be known, so that one antenna with better transceiving quality is selected as the first target antenna.
In one embodiment, the second communication function is configured with a corresponding second alternative antenna group, the second alternative antenna group includes multiple first antennas, and the second alternative antenna group is different from the first alternative antenna group. Specifically, the second alternative antenna group may include only a part of the first antennas in the radio frequency system, and the transceiving quality of each of the first antennas in the second alternative antenna group to the second communication signal is better than that of each of the other first antennas. For example, if the radio frequency system includes three first antennas, the second alternative antenna group may include two of the first antennas, such as ANT0 and ANT1 in fig. 1. That is, the first antenna ANT2 outside the second alternative antenna group has poor transceiving quality for the second communication signal.
Based on the above setting manner of the second candidate antenna group, with reference to fig. 7, the step 606 of executing a corresponding switching policy according to the switch state of each communication function further includes the following step 708.
It can be understood that, when the communication function coexists in the two systems, the first target antenna and the second target antenna may be the same antenna or different antennas, and this embodiment is not limited to this, and is specifically determined by the first network information and/or the second network information acquired in the antenna selection process. When the first target antenna and the second target antenna are the same first antenna, in the communication process of the current communication application scenario, the first communication module 110 may be kept connected to the same first antenna all the time, and only the transmission path of the communication signal inside the first communication module 110 is controlled, so as to perform transceiving processing on the first communication signal and the second communication signal, respectively. When the first target antenna and the second target antenna are different first antennas, the first switch module 210 needs to be controlled to continuously switch according to a time division manner of a time division multiplexing working mode, so as to alternately connect the first communication module 110 to the first target antenna and the second target antenna, and cooperate with controlling a transmission path of a communication signal in the first communication module 110 to respectively perform transceiving processing on the first communication signal and the second communication signal.
Fig. 8 is a third flowchart of an antenna selection method according to an embodiment, where the antenna selection method is used to perform antenna selection on the radio frequency system shown in the embodiment of fig. 2 or fig. 4. That is, the radio frequency system further includes a second communication module 120 having a third communication function, where the third communication function is used to support transceiving processing of a third communication signal of a second standard, the third communication signal is a short-range communication signal of a second frequency band, the first communication function is configured with a corresponding first candidate antenna group, and the first candidate antenna group includes multiple first antennas. Referring to fig. 8, in one embodiment, the antenna selection method includes steps 802 through 806. That is, the step 606 of executing the corresponding switching policy according to the switching state of each communication function includes the following step 806.
And 804, acquiring the on-off state of each communication function when the communication application scene is a preset scene.
Wherein the first target antenna is configured to transceive the first communication signal. Specifically, since the second communication function and the third communication function are communication functions of the same system, the on-off states of the second communication function and the third communication function may be the same. Namely, the user can simultaneously open the second communication function and the third communication function or simultaneously close the second communication function and the third communication function through one operation on the UI interface, thereby reducing the operation complexity of the user and improving the use experience of the user. Therefore, when the third communication function is turned off, the second communication function is also turned off. Correspondingly, if the first communication function is started and the third communication function is closed, the first communication function is not in a coexistence scene of the communication functions of the two systems, and the communication quality of the radio frequency system can be ensured by determining the first target antenna.
With continued reference to fig. 8, the foregoing step 606 of executing the corresponding switching policy according to the switch state of each communication function further includes steps 808 to 810.
Specifically, if the first communication function and the second communication function are both enabled, the first communication function and the second communication function are currently in a coexistence scene of the communication functions of the two systems, and the frequency bands of the first communication signal and the second communication signal to be received are different. Therefore, the same first antenna can be used for transmitting and receiving processing by adopting the frequency division multiplexing working module, so that the communication speed of the radio frequency system is improved. The selection priority refers to a selection priority of the first communication function and the second communication function. The selection priority may be determined according to the traffic demand of the respective communication function, i.e. a communication function with a large traffic demand corresponds to a higher selection priority. Specifically, the processor may store a mapping relationship between the communication application scenario and the selection priority. In this step, the stored mapping relationship may be directly obtained, so as to determine the selection priority corresponding to the current communication application scenario.
In this embodiment, based on the selection priority, the corresponding third target antenna may be preferentially matched for the communication function with a higher traffic demand, so as to avoid a stuck phenomenon in the communication process, thereby improving the user experience.
In one embodiment, the determining a first antenna as a third target antenna according to the selection priority of the first communication function and the second communication function includes: if the selection priority of the first communication function is higher than that of the second communication function, controlling the first communication module to be sequentially conducted to each first antenna in a first alternative antenna group so as to determine that one first antenna in the first alternative antenna group is used as the third target antenna; and if the selection priority of the first communication function is lower than that of the second communication function, controlling the second communication module to be sequentially conducted to each first antenna in a second alternative antenna group so as to determine that one first antenna in the second alternative antenna group is used as the third target antenna.
Illustratively, the first communication function is a bluetooth communication function, the second communication function is a WIFI communication function, and if the current communication application scene is a pocket song listening scene, the selection priority of the bluetooth communication function is higher than that of the WIFI communication function. It can be understood that the demand of the pocket on the WIFI traffic is small in the song listening scene, but the pocket can cause serious shielding to the antenna and influence the communication quality of the Bluetooth. Therefore, in this example, the third target antenna may be determined from the first candidate antenna group corresponding to the bluetooth communication function, so as to avoid the jamming of audio transmission and improve the use experience of the user. As another example, the first communication function is a bluetooth communication function, the second communication function is a WIFI communication function, and if the current communication application scene is a video transceiving scene or a landscape handheld game scene, the selection priority of the WIFI communication function is higher than that of the bluetooth communication function. The video receiving and sending scene includes a video call scene, a video live broadcast scene, and the like, and this embodiment is not limited. It will be appreciated that the traffic demand for video images is greater. Therefore, in this example, the third target antenna may be determined from the second candidate antenna group corresponding to the WIFI communication function, so as to avoid the video image being stuck, and improve the use experience of the user.
Fig. 9 is a fourth flowchart of an antenna selection method according to an embodiment, where the antenna selection method is used for antenna selection of the radio frequency system shown in the embodiment of fig. 3 or fig. 5. That is, the radio frequency system further includes a second communication module 120 having a third communication function and multiple second antennas, where the third communication function is used to support transceiving processing of a third communication signal of a second standard, and the third communication signal is a short-range communication signal of a second frequency band. Referring to fig. 9, in one embodiment, an antenna selection method includes steps 902 through 906. That is, the step 606 of executing the corresponding switching policy according to the switching state of each communication function includes the following step 906.
And 904, acquiring the on-off state of each communication function when the communication application scene is a preset scene.
Wherein the fourth target antenna is configured to transceive the third communication signal. Specifically, in the antenna selection method of this embodiment, the first communication signal and the third communication signal of different systems and different frequency bands are respectively transmitted and received through different antennas. That is, the first communication function and the third communication function do not interfere with each other, and the optimal first target antenna and the optimal fourth target antenna may be determined and may perform transceiving processing according to the operation mode of frequency division multiplexing.
In one embodiment, the acquiring a communication application scenario of a radio frequency system includes: acquiring environment information of the radio frequency system and running information of an application program, wherein the environment information comprises at least one of on-off screen information and sensing information of a sensor; and determining a communication application scene of the radio frequency system according to the environment information and the operation information. Specifically, the sensor may include at least one of gyroscope information, attitude sensor information, optical sensor information, and the like. Moreover, part of the environment information to be acquired can be determined according to the running information of the application program, for example, if the currently running application program is a game program, the communication device is necessarily in a bright screen state. Namely, the on-off screen information does not need to be acquired, so that the acquisition speed and the analysis speed of the environment information are improved. In the embodiment, based on various information, the communication application scenario of the radio frequency system can be comprehensively and accurately determined, so that the accuracy in determining the target antenna is improved, and the communication quality of the radio frequency system is further improved.
In one embodiment, the antenna selection method further includes: and when the communication application scene is not the preset scene, performing signal transceiving on the first communication signal and/or the second communication signal through a default first antenna, wherein the default first antenna is a first antenna with the highest efficiency in the plurality of first antennas in an initial state. Illustratively, the default first antenna may be ANT0 in fig. 1. It can be understood that, in a non-preset scenario, the default first antenna is an antenna sufficient to meet the communication quality requirement for the communication signal of any standard. The antenna selection switching process needs to switch the first communication module 110 to different first antennas at intervals, and this antenna switching manner has blind heuristics, and the antenna switching process is not necessarily advantageous to the communication quality, but is advantageous only after the antenna selection is completed. That is, frequently switching antennas is not necessarily the optimal operation manner, and thus, whether antenna selection is required or not can be determined by the current communication application scenario, thereby reducing the number of times of antenna switching.
It should be understood that, although the steps in the flowcharts are shown in sequence as indicated by the arrows, the steps are not necessarily performed in sequence as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in each flowchart may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of performing the sub-steps or stages is not necessarily sequential, but may be performed alternately or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
An embodiment of the present application provides a communication device, including the radio frequency system as described above. Based on the foregoing radio frequency system, the communication device of the embodiment can have better communication quality.
An embodiment of the present application provides a communication device, which includes a processor configured to execute the antenna selection method as described above. Based on the antenna selection method, the communication device of the embodiment can have better communication quality.
Embodiments of the present application provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the above-mentioned method embodiments.
Embodiments of the present application provide a computer program product, which includes a computer program, and when being executed by a processor, the computer program implements the steps in the above-mentioned method embodiments.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, database, or other medium used in the embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high-density embedded nonvolatile Memory, resistive Random Access Memory (ReRAM), Magnetic Random Access Memory (MRAM), Ferroelectric Random Access Memory (FRAM), Phase Change Memory (PCM), graphene Memory, and the like. Volatile Memory can include Random Access Memory (RAM), external cache Memory, and the like. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), for example. The databases referred to in various embodiments provided herein may include at least one of relational and non-relational databases. The non-relational database may include, but is not limited to, a block chain based distributed database, and the like. The processors referred to in the embodiments provided herein may be general purpose processors, central processing units, graphics processors, digital signal processors, programmable logic devices, quantum computing based data processing logic devices, etc., without limitation.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express a few embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, variations and modifications can be made without departing from the concept of the embodiments of the present application, and these embodiments are within the scope of the present application. Therefore, the protection scope of the embodiments of the present application shall be subject to the appended claims.
Claims (17)
1. A radio frequency system, comprising:
at least three first antennas;
the first communication module is used for respectively receiving and transmitting a first communication signal of a first standard and a second communication signal of a second standard, wherein the first communication signal and the second communication signal are near field communication signals of a first frequency band;
the first end of the first switch module is connected with the first communication module, a plurality of second ends of the first switch module are connected with the first antennas in a one-to-one correspondence mode, and the first switch module is used for selectively conducting a radio frequency path between the first communication module and any one of the first antennas.
2. The radio frequency system of claim 1, further comprising:
the second communication module is used for receiving and transmitting a third communication signal of a second standard, wherein the third communication signal is a near field communication signal of a second frequency band;
two first ends of the combiner are respectively connected with the first communication module and the second communication module in a one-to-one correspondence manner, and a second end of the combiner is connected with the first end of the first switch module.
3. The radio frequency system of claim 1, further comprising:
a plurality of second antennas;
the second communication module is used for receiving and transmitting a third communication signal of a second standard, wherein the third communication signal is a near field communication signal of a second frequency band;
and a first end of the second switch module is connected with the second communication module, and a plurality of second ends of the second switch module are respectively connected with the plurality of second antennas in a one-to-one correspondence manner.
4. A radio frequency system according to any one of claims 1 to 3, further comprising: the filter is used for carrying out filtering processing on the signal of the first frequency band;
when the radio frequency system comprises a combiner, the first communication module is connected to a first end of the combiner through the filter; when the radio frequency system does not include a combiner, the first communication module is connected to the first end of the first switch module via the filter.
5. A radio frequency system according to any one of claims 1 to 3, further comprising:
the control module is connected with the first switch module and used for acquiring the switch states of the communication functions and executing corresponding switching strategies according to the switch states of the communication functions so as to determine a first target antenna for transceiving a first communication signal and/or a second target antenna for transceiving a second communication signal;
the first communication function is configured to support transceiving processing on the first communication signal, the second communication function is configured to support transceiving processing on the second communication signal, and the first target antenna and the second target antenna are respectively one of the multiple first antennas.
6. An antenna selection method, comprising:
the method comprises the steps of obtaining a communication application scene of a radio frequency system, wherein the radio frequency system comprises a plurality of first antennas and a first communication module with a first communication function and a second communication function, the first communication function is used for supporting the transceiving processing of first communication signals of a first system, the second communication function is used for supporting the transceiving processing of second communication signals of a second system, and the first communication signals and the second communication signals are near field communication signals of a first frequency band;
when the communication application scene is a preset scene, acquiring the on-off state of each communication function;
and executing a corresponding switching strategy according to the switching state of each communication function so as to determine a first target antenna for transceiving a first communication signal and/or a second target antenna for transceiving a second communication signal, wherein the first target antenna and the second target antenna are respectively one of the plurality of first antennas.
7. The antenna selection method of claim 6, wherein the first communication function is configured with a corresponding first candidate antenna group, the first candidate antenna group comprises a plurality of first antennas, and the performing a corresponding switching policy according to the switch state of each communication function comprises:
and if the first communication function is started, controlling the first communication module to be sequentially conducted to each first antenna in the first alternative antenna group so as to determine that one first antenna in the first alternative antenna group is used as the first target antenna.
8. The antenna selection method of claim 7, wherein the determining a first antenna of the first candidate antenna group as the first target antenna comprises:
respectively acquiring first network information when each first antenna in the first alternative antenna group receives and transmits the first communication signal;
determining one of the first candidate antenna groups as the first target antenna according to the first network information.
9. The antenna selection method of claim 7, wherein the second communication function is configured with a corresponding second candidate antenna group, the second candidate antenna group includes multiple first antennas, and the second candidate antenna group is different from the first candidate antenna group, and the performing a corresponding switching policy according to a switching state of each communication function further includes:
and if the second communication function is started, controlling the first communication module to be sequentially conducted to each first antenna in the second alternative antenna group so as to determine that one first antenna in the second alternative antenna group is used as the second target antenna.
10. The antenna selection method according to claim 6, wherein the radio frequency system further includes a second communication module having a third communication function, the third communication function is configured to support transceiving processing of a third communication signal of a second standard, the third communication signal is a short-range communication signal of a second frequency band, the first communication function is configured with a corresponding first candidate antenna group, and the first candidate antenna group includes multiple first antennas;
the executing of the corresponding switching strategy according to the switch state of each communication function includes:
if the first communication function is turned on and the third communication function is turned off, the first communication module is controlled to be sequentially conducted to each first antenna in the first alternative antenna group to determine that one first antenna in the first alternative antenna group is used as a first target antenna, and the first target antenna is used for receiving and transmitting the first communication signal.
11. The antenna selection method of claim 10, wherein the third communication function is configured with a corresponding third candidate antenna group, the third candidate antenna group includes multiple first antennas, and the third candidate antenna group is different from the first candidate antenna group, and the performing a corresponding switching policy according to a switching state of each communication function further includes:
if the first communication function and the third communication function are both started, acquiring a selection priority corresponding to the communication application scene;
and according to the selection priorities of the first communication function and the third communication function, determining a first antenna as a third target antenna, wherein the third target antenna is used for simultaneously receiving the near field communication signals of the first frequency band and the second frequency band.
12. The antenna selection method of claim 11, wherein the determining a first antenna as a third target antenna according to the selection priority of the first communication function and the third communication function comprises:
if the selection priority of the first communication function is higher than that of the third communication function, controlling the first communication module to be sequentially conducted to each first antenna in a first alternative antenna group so as to determine that one first antenna in the first alternative antenna group is used as the third target antenna;
and if the selection priority of the first communication function is lower than that of the third communication function, controlling the second communication module to be sequentially conducted to each first antenna in a third alternative antenna group so as to determine that one first antenna in the third alternative antenna group is used as the third target antenna.
13. The antenna selection method according to claim 6, wherein the radio frequency system further includes a second communication module having a third communication function and multiple second antennas, the third communication function is configured to support transceiving processing on a third communication signal of a second standard, the third communication signal is a short-range communication signal of a second frequency band, and the executing a corresponding switching policy according to the on-off state of each communication function includes:
and if the third communication function is started, controlling the second communication module to be sequentially conducted to each second antenna so as to determine one of the plurality of second antennas as a fourth target antenna, wherein the fourth target antenna is used for receiving and transmitting the third communication signal.
14. The antenna selection method of claim 6, wherein the obtaining a communication application scenario of a radio frequency system comprises:
acquiring environment information of the radio frequency system and running information of an application program, wherein the environment information comprises at least one of on-off screen information and sensing information of a sensor;
and determining a communication application scene of the radio frequency system according to the environment information and the operation information.
15. The antenna selection method of claim 6, further comprising:
and when the communication application scene is not the preset scene, performing signal transceiving on the first communication signal and/or the second communication signal through a default first antenna, wherein the default first antenna is a first antenna with the highest efficiency in the plurality of first antennas in an initial state.
16. A communication device comprising a radio frequency system according to any one of claims 1 to 5.
17. A communication device comprising a processor configured to perform the antenna selection method of any of claims 6 to 15.
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