CN113163145B - Clock frequency switching method, clock frequency switching device, electronic equipment and readable storage medium - Google Patents
Clock frequency switching method, clock frequency switching device, electronic equipment and readable storage medium Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The application discloses a clock frequency switching method and device, electronic equipment and a readable storage medium, and belongs to the technical field of communication. The problem of abnormal picture display of the display screen caused by the increase of the probability of unmatched frame rate and refresh rate of the electronic equipment due to MIPI clock frequency switching can be solved. The method comprises the following steps: acquiring a second signal parameter of a second antenna receiving and transmitting signal under the condition that the clock frequency of the MIPI signal is detected to generate interference on the radio frequency band of the electronic equipment and the first signal parameter of the first antenna receiving and transmitting signal meets a first condition; switching the clock frequency of the MIPI signal to a target clock frequency under the condition that each second signal parameter meets the first condition; the electronic device includes at least two antennas; the first antenna is: an antenna with the largest interference with MIPI signals among at least two antennas; the second antenna is: and the other antennas except the first antenna in the at least two antennas. The embodiment of the application is applied to the scene of radio frequency communication.
Description
Technical Field
The application belongs to the technical field of communication, and particularly relates to a clock frequency switching method, a clock frequency switching device, electronic equipment and a readable storage medium.
Background
Currently, electronic devices typically use peripheral devices (e.g., cameras, liquid crystal displays, etc.) that use MIPI (mobile industry processor interface, mobile Inbaistry Processor Interface) interfaces. Generally, when the electronic device realizes data transmission between the peripheral device and the electronic device through the MIPI interface, the clock frequency of the MIPI signal transmitted through the MIPI interface easily interferes with the radio frequency band of the electronic device, thereby causing the sensitivity of radio frequency communication to be reduced and reducing the user experience of talking and surfing the internet.
In order to solve the above-mentioned problem, in the related art, the electronic device may switch the clock frequency of the MIPI signal according to the current radio frequency band of the electronic device, that is, to a frequency that will not interfere with the signal in the current radio frequency band, so as to avoid the influence of MIPI communication on the quality of radio frequency communication.
However, in an actual communication scenario, a change in a communication environment where the electronic device is located may cause a change in a radio frequency band, and frequent switching of the radio frequency band may cause frequent switching of a clock frequency of the MIPI signal, thereby affecting a frame rate of the electronic device. As such, the probability of the frame rate and the refresh rate of the electronic device not matching increases, thereby causing abnormal display of the screen (e.g., screen jams, screen ghosts).
Disclosure of Invention
An embodiment of the application aims to provide a clock frequency switching method, a clock frequency switching device, electronic equipment and a readable storage medium, which can solve the problem that due to MIPI clock frequency switching, the probability of unmatched frame rate and refresh rate of the electronic equipment is increased, so that abnormal picture display of a display screen is caused.
In order to solve the technical problems, the application is realized as follows:
in a first aspect, an embodiment of the present application provides a clock frequency switching method, which is applied to a clock frequency switching device, where the method includes: acquiring a second signal parameter of a second antenna receiving and transmitting signal under the condition that the clock frequency of the MIPI signal of the mobile industry processor generates interference on the radio frequency band of the electronic equipment and the first signal parameter of the first antenna receiving and transmitting signal meets a first condition; the electronic device includes at least two antennas; switching the clock frequency of the MIPI signal to a target clock frequency under the condition that each second signal parameter meets the first condition; wherein, the first antenna is: an antenna with the largest interference with MIPI signals among at least two antennas; the second antenna is: and the other antennas except the first antenna in the at least two antennas.
In a second aspect, an embodiment of the present application provides a clock frequency switching apparatus, including: the device comprises a detection module, an acquisition module and an execution module;
the acquiring module is configured to acquire a second signal parameter of a second antenna transmit-receive signal when the detecting module detects that the clock frequency of the mobile industry processor interface MIPI signal interferes with the radio frequency band of the electronic device and the first signal parameter of the first antenna transmit-receive signal meets a first condition; the electronic device includes at least two antennas; the execution module is configured to switch the clock frequency of the MIPI signal to the target clock frequency when each of the second signal parameters acquired by the acquisition module satisfies the first condition; wherein, the first antenna is: an antenna with the largest interference with MIPI signals among the at least two antennas; the second antenna is: and the other antennas except the first antenna in the at least two antennas.
In a third aspect, an embodiment of the present application provides an electronic device, including a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction implementing the steps of the method according to the first aspect when executed by the processor.
In a fourth aspect, embodiments of the present application provide a readable storage medium having stored thereon a program or instructions which when executed by a processor perform the steps of the method according to the first aspect.
In a fifth aspect, an embodiment of the present application provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and where the processor is configured to execute a program or instructions to implement a method according to the first aspect.
In a sixth aspect, embodiments of the present application provide a computer program product stored on a non-volatile storage medium, the program product being executable by at least one processor to implement the method according to the first aspect.
In the embodiment of the application, when the electronic device is provided with a plurality of antennas and the clock frequency of the MIPI signal is detected to generate interference on the radio frequency band of the electronic device, the electronic device can judge whether the signal receiving and transmitting parameters of one or a plurality of antennas of the electronic device meet the first condition or not and switch the MIPI clock frequency again when the signal receiving and transmitting parameters of one or a plurality of antennas of the electronic device meet the first condition. Therefore, the electronic equipment can measure the current radio frequency communication channel and signal quality by detecting the signal receiving and transmitting parameters of each antenna, and then determine whether to switch the MIPI clock frequency according to the current actual situation, so that the clock frequency of the MIPI signal can not be frequently switched due to the change of the communication frequency band, the consumption of the electronic equipment resource is reduced, and the display effect of the display screen is optimized.
Drawings
FIG. 1 is a flowchart of a clock frequency switching method according to an embodiment of the present application;
fig. 2 is a schematic diagram of an antenna structure of an electronic device according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a clock frequency switching apparatus according to an embodiment of the present application;
fig. 4 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present application;
fig. 5 is a second schematic diagram of a hardware structure of an electronic device according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
At present, peripheral devices of an MIPI interface, such as a camera and a liquid crystal display, are usually used in an electronic terminal, and MIPI signals are transmitted among the camera, the liquid crystal display module and the terminal, however, the paths of the MIPI signals are usually longer, the MIPI signals are easy to interfere radio frequency communication, and the most direct expression is that when an external device (such as a camera for photographing, video playing and other scenes) transmitted by using an MIPI protocol is opened, the communication signals of the terminal are possibly reduced, so that the user experience of talking and surfing the internet is directly affected.
Related art proposes to solve interference of MIPI signal transmission to a system network-resident frequency band by using a frequency hopping scheme, and when a clock frequency of MIPI (i.e., MIPI CLK) interferes with a current communication channel, switch MIPI CLK to other frequencies to avoid interference to the current network-resident. That is, in the related art, a preset interference channel is adopted to judge an implementation communication network injection channel, and when the real-time communication channel is judged to be the interference channel, the MIPI CLK is switched to avoid interference. The scheme aims to solve the problem of radio frequency interference, and further achieves the effect of avoiding interference by continuously switching MIPI CLK. However, in a practical scenario, the terminal continuously performs terminal position movement, neighbor cell signal measurement, and the like, which causes the channel of the terminal to be continuously switched, and also causes the terminal to be possibly switched MIPI CLK all the time in real time.
Specifically, the calculation formula of the MIPI clock frequency is as follows: MIPI clock frequency clk= (resolution width of plane w+hsync+ hfp +hbp) (screen resolution high height+frame synchronization signal vsync+ vfp +vbp) (RGB display data width) ×frame rate/(number of data channels lane_num)/2; wherein hsync is a line synchronization signal, hfp is a front shoulder of the line synchronization signal, hbp is a rear shoulder of the line synchronization signal, vsync is a frame synchronization signal, vfp is a front shoulder of the frame synchronization signal, and vbp is a rear shoulder of the frame synchronization signal. The RGB display data width, the number of data channels LANE _ num, is fixed.
Thus, if MIPI CLK changes, the only change that occurs is the frame rate. If the frame rate is 60Hz, the frame rate will also change to 59.4Hz if MIPI CLK is switched from 600M to 594M. Although the frame rate changes slightly, the display and the touch screen in the mobile phone are time-division operated (not operated simultaneously), and if the frame rate of the display changes, the display and the touch screen may collide. When the number of collisions between the display and the touch screen is too large (probabilistic problem), display anomalies such as screen ghost points (no reason and self-jump), touch screen failure, etc. occur. Therefore, the occurrence of such things must be avoided as much as possible, and the frequency hopping frequency of the terminal is reduced, so that the risk of abnormal touch screen is reduced.
The application not only considers the dimension of whether the channel is interfered or not when solving the factor of MIPI interference, but also receives and transmits signals according to the main set, diversity and MIMO channels. Accurate identification and positioning are carried out, and MIPI CLK switching is carried out as little as possible, so that the stability of display and touch screen of the terminal LCM is ensured.
As shown in table 1, table 1 shows a communication signal big data statistics harness.
| Signal strength | B1 | B3 | B34 | B38 | B39 | B40 | B41 | B5 | B8 |
| (-∞,-125] | 0.10％ | 0.10％ | 0.10％ | 0.10％ | 0.10％ | 0.10％ | 0.10％ | 0.10％ | 0.10％ |
| (-125,-113] | 1.40％ | 2.20％ | 2.40％ | 3.10％ | 3.10％ | 1.10％ | 2.00％ | 3.50％ | 4.70％ |
| (-113,-105] | 6.20％ | 6.90％ | 7.60％ | 9.70％ | 9.70％ | 4.10％ | 5.40％ | 11.30％ | 14.20％ |
| (-105,-97] | 19.70％ | 17.80％ | 20.00％ | 20.20％ | 20.20％ | 14.50％ | 16.50％ | 22.30％ | 24.50％ |
| (-97,0] | 67.90％ | 67.10％ | 63.40％ | 61.20％ | 61.20％ | 74.00％ | 69.50％ | 58.50％ | 50.50％ |
| other | 4.80％ | 5.90％ | 6.40％ | 5.80％ | 5.80％ | 6.40％ | 6.50％ | 4.40％ | 6.00％ |
TABLE 1
Referring to Table 1, the weak signals (-infinity, 125 dBm/15 kHz) in each frequency band in Table 1 have a duty ratio of only 0.1%, the sub-weak signals (-125, -113 dBm/15 kHz) have a duty ratio of only about 1.1% -4.7%, and the strong signals (-113, 0 dBm/15 kHz) have a duty ratio of 95.2% -98.8%.
In the clock frequency switching method provided by the embodiment of the application, when the electronic equipment is provided with a plurality of antennas and the clock frequency of the MIPI signal is detected to interfere with the radio frequency band of the electronic equipment, the electronic equipment can judge whether the signal receiving and transmitting parameters of one or a plurality of antennas of the electronic equipment meet the first condition or not and switch the MIPI clock frequency again when the signal receiving and transmitting parameters of one or a plurality of antennas of the electronic equipment meet the first condition. Therefore, the electronic equipment can measure the current radio frequency communication channel and signal quality by detecting the signal receiving and transmitting parameters of each antenna, and then determine whether to switch MIPI clock frequency according to the current actual situation, so that IPI signals cannot be frequently switched due to the change of communication frequency bands, the consumption of electronic equipment resources is reduced, and the display stability of a display screen and the touch screen stability are improved.
The clock frequency switching method provided by the embodiment of the application is described in detail through specific embodiments and application scenes thereof with reference to the accompanying drawings.
The embodiment of the application provides a clock frequency switching method, fig. 1 shows a flowchart of the clock frequency switching method provided by the embodiment of the application, and as shown in fig. 1, the clock frequency switching method provided by the embodiment of the application may include the following steps 101 and 102:
step 101: when the clock frequency of the MIPI signal of the mobile industry processor interface is detected to generate interference on the radio frequency band of the electronic equipment, and the first signal parameter of the first antenna receiving and transmitting signal meets the first condition, a clock frequency switching device (hereinafter referred to as a switching device for short) acquires the second signal parameter of the second antenna receiving and transmitting signal.
The electronic equipment comprises at least two antennas, and the first antenna is as follows: an antenna with the largest interference with MIPI signals among at least two antennas of the electronic equipment; the second antenna is: and the other antennas except the first antenna in at least two antennas of the electronic device.
In the embodiment of the application, the switching device can acquire the clock frequency of the MIPI signal and the current radio frequency band and determine whether the MIPI clock frequency interferes with the current radio frequency band.
The switching device may obtain the interference degree of the MIPI clock frequency to the current radio frequency band according to the preset radio frequency band and the preset correspondence. The corresponding relation comprises interference degrees of different MIPI clock frequencies on a radio frequency band currently used by the electronic equipment. Since the MIPI clock frequency interferes with the rf band to a degree below a threshold, the clock frequency is considered to be non-interfering with the rf band.
Since no interference exists in an absolute sense in actual communication, the term "interference does not occur" in the present application means that the interference does not affect normal communication, for example, the interference is not greater than a threshold value, and is negligible.
In an embodiment of the present application, the at least two antennas may include: main set, diversity and MIMO path antennas.
It should be noted that, in general, the receiving portion of the frequency band for real-time communication of the electronic device has two antennas and four antennas, as in (a) and (b) in fig. 2 are layout diagrams of the inside of the two antennas and the four antennas, respectively, and (a) in fig. 2 includes receiving antennas ANT0 and ANT1, which are used for a main set (PRX) and a diversity set (DRX), respectively. Fig. 2 (b) includes reception antennas ANT0, ANT1, ANT2, ANT3 for a main set (PRX), diversity (DRX), a main set MIMO (prx_mimo), and diversity MIMO (drx_mimo), respectively. Such a combination may allow for an improved reception sensitivity of the terminal, since the information content of the main set and the diversity reception is the same.
Based on the above, under the condition that the current MIPI clock frequency generates interference to the radio frequency band, if at least one antenna receiving path exists in the electronic equipment, the electronic equipment can work normally, and normal communication can be performed by the electronic equipment. Therefore, it is possible to determine whether there is an antenna that can normally operate at present by detecting a transceiving signal parameter (i.e., reference signal reception power) of an antenna in the electronic device, thereby reducing unnecessary frequency hopping (i.e., frequency switching).
In an embodiment of the present application, the first signal parameter and the second signal parameter may include: the reference signal received power (i.e. signal strength, RSRP), signal-to-noise ratio (i.e. SINR), received wideband power (i.e. RSSI), reference signal received quality (i.e. RSRQ), the above-mentioned first signal parameter and second signal parameter may also be other signal parameters, which may be specifically determined according to practical situations, and the embodiment of the present application does not limit this in any way.
It should be noted that, the reference signal received power represents a key parameter of the wireless signal strength, and may be used to measure the signal strength of the receiving channel of the antenna, so as to determine whether the current signal is a strong signal or a weak signal. In actual communication, when the RSRP is in the range of-113 to 0dBm, the current signal is considered to be a strong signal. In general, interference has only a significant effect on weak signals and a lesser effect on strong signals. Therefore, whether the MIPI clock frequency is required to be switched can be judged by measuring the signal strength and the signal quality of the receiving channel of the antenna, and thus, the MIPI clock frequency can be switched only under the condition that the MIPI clock frequency affects the radio frequency signal.
In the embodiment of the application, when the electronic device detects that the clock frequency of the MIPI signal interferes with the radio frequency band of the electronic device, the electronic device may first acquire the reference signal receiving power (i.e., RSRP) of the first antenna of the electronic device, and acquire the reference signal receiving powers of the antennas (i.e., the second antenna) except the first antenna when the reference signal receiving power of the first antenna is smaller than the first threshold.
Alternatively, in the embodiment of the present application, the first antenna may be an antenna closest to a signal transmission path (i.e., an interference path) of the MIPI signal.
For example, the signal transmission path of the MIPI signal may be determined according to actual MIPI communication, for example, when the electronic device communicates with the display screen, the signal transmission path of the MIPI signal is a transmission path from the motherboard to a certain area of the display screen, and when the electronic device communicates with the camera, the signal transmission path of the MIPI signal is a transmission path from the motherboard to the camera.
It should be noted that only the interference source passes through an effective interference path to the interfered object, so that interference can be formed. As shown in fig. 2, the MIPI signal (dotted line portion) is closest to ANT1, so that interference is generated only to ANT1 when MIPI signal is transmitted; the other antennas will not be interfered by the long distance, or the generated interference is negligible.
Therefore, the application can combine the MIPI signal path and the reference signal receiving power of the antenna in the electronic equipment to judge whether to switch the frequency, thereby improving the efficiency of MIPI clock frequency configuration.
Step 102: and switching the clock frequency of the MIPI signal to the target clock frequency under the condition that each second signal parameter meets the first condition.
In the embodiment of the application, when the electronic device detects that the clock frequency of the MIPI signal interferes with the radio frequency band of the electronic device, if the second signal parameter of the second antenna receiving and transmitting signal meets the first condition, that is, the reference signal receiving power of the second antenna is also smaller than the first threshold value, the signal strength of all antenna receiving signals representing the electronic device is weaker, and the interference generated by the MIPI clock frequency easily affects the current radio frequency signal. Thus, the MIPI clock frequency may be switched to a clock frequency that does not interfere with the current radio frequency band (i.e., the target clock frequency).
In the embodiment of the present application, in the clock frequency switching method provided in the embodiment of the present application, when the electronic device has multiple antennas and it is detected that the clock frequency of the MIPI signal interferes with the radio frequency band of the electronic device, the electronic device may determine whether the signal receiving and transmitting parameters of one or more antennas of the electronic device satisfy the first condition, and switch the MIPI clock frequency when the signal receiving and transmitting parameters of one or more antennas of the electronic device satisfy the first condition. Therefore, the electronic equipment can measure the current radio frequency communication channel and signal quality by detecting the signal receiving and transmitting parameters of each antenna, and then determine whether to switch the MIPI clock frequency according to the current actual situation, so that the MIPI signal can not be frequently switched due to the change of the communication frequency band, the consumption of the electronic equipment resource is reduced, and the display effect of the display screen is optimized.
Optionally, in an embodiment of the present application, the first condition includes: the signal strength is less than a first threshold.
The first threshold may be-113 dBm, for example. Further, when the reference signal received power of the antenna received signal is smaller than the first threshold, the signal received by the antenna is considered to be a weak signal, and when the reference signal received power of the antenna received signal is larger than or equal to the first threshold, the signal received by the antenna is considered to be a strong signal.
For example, when the number of antennas and the layout of the antennas of the electronic device are different, the situation of being disturbed is also different. The interference situation under different antenna numbers and layouts will be described below with 2 examples.
Example 1: in the case where two antennas (e.g., ANT0 and ANT 1) are present in the electronic device, the radio frequency communication of the electronic device may be divided into the following four scenarios (as shown in table 2 below) according to the magnitude relation of the reference signal received power of each antenna and the first threshold.
| Scene(s) | ANT0 | ANT1 |
| Scene one | Strong strength | Strong strength |
| Scene two | Strong strength | Weak and weak |
| Scene three | Weak and weak | Strong strength |
| Scene four | Weak and weak | Weak and weak |
TABLE 2
Under the 4 scenes, for the first scene and the second scene, as the ANT0 of the terminal can better receive signals, whether the ANT1 receives interference or not can still ensure the normal operation of the terminal; in the third scenario, since ANT0 is a weak signal and ANT1 is a strong signal, ANT1 is not easy to receive interference under the strong signal, so that the terminal can still work normally; in the fourth scenario, ANT0 is a weak signal, ANT1 is also a weak signal, and both paths of reception are weak at this time, and if ANT1 is also interfered by MIPI, it is easy to cause signal degradation. There is a need to perform MIPI CLK switching for scenario four to avoid interference situations.
In view of the above, in an actual communication environment, if the ratio of the strong signal to the weak signal is 1:1, the duty cycle of scenario four is only 25%, in which case the MIPI CLK switching frequency can be reduced by 75% even though the real-time communication channel conforms to the interfering channel. Compared with the traditional method for simply judging whether the real-time communication channel is an interference channel, the switching frequency is greatly reduced; if the ratio of the strong and weak signals is 3:1, the duty cycle of scenario four is only 6.25%, in which case the MIPI CLK switching frequency can be reduced by 93.5% even though the real-time communication channel conforms to the interfering channel. Therefore, compared with the traditional method that whether the real-time communication channel is the interference channel characteristic is simply judged, and clock frequency switching is carried out under the condition that the real-time communication channel is interfered, the switching frequency is greatly reduced.
Example 2: when the electronic device has four antennas (e.g., ANT0, ANT1, ANT2, ANT 3), the radio frequency communication of the electronic device may be divided into the following sixteen scenarios (as shown in table 3 below) according to the magnitude relation of the reference signal received power of each antenna and the first threshold.
| Scene(s) | ANT0 | ANT1 | ANT2 | ANT3 |
| Scene one | Strong strength | Strong strength | Strong strength | Strong strength |
| Scene two | Strong strength | Strong strength | Strong strength | Weak and weak |
| Scene three | Strong strength | Strong strength | Weak and weak | Strong strength |
| Scene four | Strong strength | Strong strength | Weak and weak | Weak and weak |
| Scene five | Strong strength | Weak and weak | Strong strength | Strong strength |
| Scene six | Strong strength | Weak and weak | Strong strength | Weak and weak |
| Scene seven | Strong strength | Weak and weak | Weak and weak | Strong strength |
| Scene eight | Strong strength | Weak and weak | Weak and weak | Weak and weak |
| Scene nine | Weak and weak | Strong strength | Strong strength | Strong strength |
| Scene ten | Weak and weak | Strong strength | Strong strength | Weak and weak |
| Scene eleven | Weak and weak | Strong strength | Weak and weak | Strong strength |
| Scene twelve | Weak and weak | Strong strength | Weak and weak | Weak and weak |
| Scene thirteen | Weak and weak | Weak and weak | Strong strength | Strong strength |
| Scene fourteen | Weak and weak | Weak and weak | Strong strength | Weak and weak |
| Scene fifteen | Weak and weak | Weak and weak | Weak and weak | Strong strength |
| Sixteen scenes | Weak and weak | Weak and weak | Weak and weak | Weak and weak |
TABLE 3 Table 3
Under the 16 scenes, for the first scene to the fifteen scenes, as one path (namely, one antenna) in the terminal can be always ensured to receive stronger signals, whether the ANT1 receives interference or not can be ensured to still ensure the normal communication of the terminal; for scene sixteen, since ANT0, ANT1, ANT2, ANT3 are weak signals, i.e., the signal strength of the 4-way reception is weak at this time, if ANT1 is interfered by MIPI, it is easy to cause signal degradation. So only MIPI CLK switching for scenario sixteen is needed to avoid the occurrence of glitches.
In view of the above, in an actual communication environment, if the ratio of the strong signal to the weak signal is 1:1, the sixteen duty cycle of the scenario is only 6.25%, in which case the MIPI CLK switching frequency can be reduced by 93.5% even though the real-time communication channel conforms to the interfering channel. Compared with the traditional method, whether the real-time communication channel is an interference channel characteristic is simply judged; if the ratio of the strong and weak signals is 3:1, the sixteen duty cycle of the scenario is only 0.39%, in which case the MIPI CLK switching frequency can be reduced by 99.61% even though the real-time communication channel conforms to the interfering channel.
Therefore, by judging the magnitude of the reference signal receiving power of the antenna of the electronic equipment and performing clock frequency switching of the MIPI signal under the condition that the reference signal receiving power of the antenna meets the first condition, compared with the traditional mode of simply judging whether the real-time communication channel is an interference channel characteristic or not and performing clock frequency switching under the condition that the real-time communication channel is interfered, the switching frequency is greatly reduced, so that the consumption of electronic equipment resources is reduced, and the display effect of the display screen is optimized.
Optionally, in the embodiment of the present application, when it is detected that the clock frequency of the MIPI signal interferes with the radio frequency band of the electronic device, and the first signal parameter or any second signal parameter does not satisfy the first condition, the switching device maintains the clock frequency of the MIPI signal.
In one example, in a case where interference to a radio frequency band of the electronic device is detected by a clock frequency of the MIPI signal, when a first signal parameter of the first antenna transmit-receive signal does not satisfy a first condition, that is, a reference signal received power of the first antenna is greater than a first threshold, it is characterized that a signal strength of a current first antenna received signal is greater. Since the interference generated by the MIPI clock frequency has a small influence on the radio frequency signal received by the first antenna at this time, the interference can be ignored. That is, the electronic device may perform normal radio frequency communication through the first antenna, so the switching device may maintain the clock frequency of the current MIPI signal.
In another example, in a case where interference to the radio frequency band of the electronic device is detected by the clock frequency of the MIPI signal, when the first signal parameter of the first antenna transmit-receive signal satisfies the first condition, that is, the reference signal received power of the first antenna is less than the first threshold, normal radio frequency communication may not be performed through the first antenna due to the electronic device. At this time, the switching device may continuously detect the second signal parameters of the other antennas except the first antenna, if the second signal parameters do not meet the preset condition, that is, there are other antennas in the electronic device with reference signal receiving power greater than the first threshold, that is, the electronic device may still perform normal radio frequency communication through the other antennas, so the switching device may maintain the clock frequency of the current MIPI signal.
Therefore, the switching device can not switch the current MIPI clock frequency under the condition that at least one antenna capable of normal radio frequency communication exists, and the consumption of system resources of the electronic equipment is reduced.
Optionally, in the embodiment of the present application, before the clock frequency of the MIPI signal is switched to the target clock frequency in the step 102, the clock frequency switching method provided in the embodiment of the present application further includes the following steps 102a and 102b:
Step 102a: an available clock frequency range of the MIPI signal is acquired.
Step 102b: and determining the target clock frequency matched with the radio frequency band in the available clock frequency range.
For example, the target clock frequency may include one or more clock frequencies.
For example, the switching device may obtain the currently available at least one MIPI clock frequency in real time through an expression of the clock frequency according to the currently ongoing business process (e.g., screen lighting, shooting).
The switching device may determine, based on a preset correspondence between the radio frequency band and the clock frequency, a clock frequency corresponding to a current radio frequency band of the electronic device, and determine, in the available clock frequency range, a target clock frequency matching the radio frequency band according to the clock frequency corresponding to the current radio frequency band.
The target clock frequency matched with the radio frequency band may be, for example, a MIPI clock frequency that has the lowest interference level with the radio frequency band currently used by the electronic device.
Further, according to the experimental data, the corresponding relation between different radio frequency bands and MIPI clock frequencies can be stored in the electronic device in advance, and the MIPI clock frequency corresponding to the radio frequency band being used by the electronic device can be obtained by inquiring the corresponding relation.
For example, assuming that the current radio frequency band of the electronic device is B20 (731-821 MHz), the available clock frequency range of the MIPI signal is 499.2MHz-504.5MHz, and the preset correspondence includes B20 band and MIPI clock frequencies 486.4MHz, 499.2MHz, 502.4MHz, and 480MHz, the electronic device may determine that the clock frequencies matching the radio frequency band are 499.2MHz and 502.4MHz (i.e., the target clock frequency).
Therefore, the electronic equipment can determine the clock frequency which is in the available clock frequency range of the MIPI signal and has smaller interference to the current radio frequency band by inquiring the corresponding relation between the preset radio frequency band and the MIPI clock frequency, and the MIPI clock frequency switching efficiency is improved.
Further alternatively, in an embodiment of the present application, the process of the step 102b may include the following step 102b1:
step 102b1: and taking the clock frequency with the least interference degree to the radio frequency band as a target clock frequency in the available clock frequency range.
The switching device may determine, as the target clock frequency, a clock frequency having the smallest interference to the current rf frequency band from the available clock frequency range based on a preset correspondence between the rf frequency band and the clock frequency. Further, according to experimental data, the corresponding relation of the interference degree of the MIPI clock frequency in different radio frequency bands can be stored in the electronic device in advance, and the MIPI clock frequency with different interference degrees to the radio frequency bands being used by the electronic device can be obtained by inquiring the corresponding relation.
The corresponding relation comprises interference degrees of different MIPI clock frequencies on radio frequency bands of the electronic equipment. Generally, if the MIPI clock frequency interferes with the rf band below a threshold, the clock frequency is considered to not interfere with the rf band.
For example, assuming that the current radio frequency band of the electronic device is B20 (731-821 MHz), the available clock frequency range of the MIPI signal is 499.2MHz-504.5MHz, the preset correspondence includes correspondence between the B20 band and MIPI clock frequencies of 486.4MHz, 499.2MHz, 502.4MHz and 480MHz, and the interference level to the B20 band in the MIPI clock frequencies is 486.4MHz, 499.2MHz, 502.4MHz and 480MHz from small to large, the switching device may switch the current clock frequency to 499.2MHz (i.e., the target clock frequency).
Therefore, the switching device can determine the clock frequency with the least interference to the current radio frequency band in the available clock frequency range of the MIPI signal by inquiring the corresponding relation between the preset radio frequency band and the MIPI clock frequency, and the MIPI clock frequency switching efficiency is improved.
It should be noted that, in the clock frequency switching method provided in the embodiment of the present application, the execution body may be a clock frequency switching device, or a control module in the clock frequency switching device for executing the clock frequency switching method. In the embodiment of the present application, a method for executing clock frequency switching by using a clock frequency switching device is taken as an example, and the clock frequency switching device provided by the embodiment of the present application is described.
An embodiment of the present application provides a clock frequency switching device, as shown in fig. 3, including: a detection module 601, an acquisition module 602, and an execution module 603;
the acquiring module 602 is configured to acquire a second signal parameter of a second antenna transmit-receive signal when the detecting module 601 detects that a clock frequency of a MIPI signal of a mobile industrial processor interface interferes with a radio frequency band of the electronic device and a first signal parameter of a first antenna transmit-receive signal meets a first condition; the executing module 603 is configured to switch the clock frequency of the MIPI signal to a target clock frequency when each of the second signal parameters acquired by the acquiring module 602 satisfies the first condition; the electronic device includes at least two antennas; wherein, the first antenna is: an antenna having the greatest interference with the MIPI signal among the at least two antennas; the second antenna is: and the other antennas except the first antenna in the at least two antennas.
Optionally, in an embodiment of the present application, the first signal parameter includes: reference signal received power; the first condition includes: the reference signal received power is smaller than a first threshold.
Optionally, in an embodiment of the present application, the switching device further includes: a determination module 604;
the acquisition module is further configured to acquire an available clock frequency range of the MIPI signal; the determining module 604 is configured to determine a target clock frequency matching the rf band within the available clock frequency range acquired by the acquiring module 602.
Optionally, in the embodiment of the present application, the determining module 604 is specifically configured to use, as the target clock frequency, the clock frequency with the smallest interference to the radio frequency band within the available clock frequency range.
Optionally, in the embodiment of the present application, the executing module 603 is further configured to maintain the clock frequency of the MIPI signal when the clock frequency of the MIPI signal is detected to interfere with the radio frequency band of the electronic device, and the first signal parameter or any of the second signal parameters does not satisfy the first condition.
In the clock frequency switching device provided by the embodiment of the application, when the electronic equipment is provided with a plurality of antennas and the clock frequency of the MIPI signal is detected to interfere with the radio frequency band of the electronic equipment, the electronic equipment can judge whether the signal receiving and transmitting parameters of one or a plurality of antennas of the electronic equipment meet the first condition or not and switch the MIPI clock frequency again when the signal receiving and transmitting parameters of one or a plurality of antennas of the electronic equipment meet the first condition. Therefore, the electronic equipment can measure the current radio frequency communication channel and signal quality by detecting the signal receiving and transmitting parameters of each antenna, and then determine whether to switch the MIPI clock frequency according to the current actual situation, so that the clock frequency of the MIPI signal can not be frequently switched due to the change of the communication frequency band, the consumption of the electronic equipment resource is reduced, and the display effect of the display screen is optimized.
The clock frequency switching device in the embodiment of the application can be a device, and can also be a component, an integrated circuit or a chip in a terminal. The device may be a mobile electronic device or a non-mobile electronic device. By way of example, the mobile electronic device may be a cell phone, tablet computer, notebook computer, palm computer, vehicle mounted electronic device, wearable device, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), netbook or personal digital assistant (personal digital assistant, PDA), etc., and the non-mobile electronic device may be a server, network attached storage (Network Attached Storage, NAS), personal computer (personal computer, PC), television (TV), teller machine or self-service machine, etc., and embodiments of the present application are not limited in particular.
The clock frequency switching device in the embodiment of the application can be a device with an operating system. The operating system may be an Android operating system, an ios operating system, or other possible operating systems, and the embodiment of the present application is not limited specifically.
The clock frequency switching device provided by the embodiment of the present application can implement each process implemented by the embodiments of the methods of fig. 1 and fig. 2, and in order to avoid repetition, a detailed description is omitted here.
Optionally, as shown in fig. 4, the embodiment of the present application further provides an electronic device 700, including a processor 701, a memory 702, and a program or an instruction stored in the memory 702 and capable of running on the processor 701, where the program or the instruction implements each process of the above clock frequency switching method embodiment when executed by the processor 701, and the process can achieve the same technical effect, and for avoiding repetition, a description is omitted herein.
The electronic device in the embodiment of the application includes the mobile electronic device and the non-mobile electronic device.
Fig. 5 is a schematic hardware structure of an electronic device implementing an embodiment of the present application.
The electronic device 100 includes, but is not limited to: radio frequency unit 101, network module 102, audio output unit 103, input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, and processor 110.
Those skilled in the art will appreciate that the electronic device 100 may further include a power source (e.g., a battery) for powering the various components, and that the power source may be logically coupled to the processor 110 via a power management system to perform functions such as managing charging, discharging, and power consumption via the power management system. The electronic device structure shown in fig. 4 does not constitute a limitation of the electronic device, and the electronic device may include more or less components than shown, or may combine certain components, or may be arranged in different components, which are not described in detail herein.
Optionally, in the embodiment of the present application, the processor 110 is configured to obtain a second signal parameter of the second antenna transceiving signal when it is detected that the clock frequency of the MIPI signal interferes with the radio frequency band of the electronic device and the first signal parameter of the first antenna transceiving signal meets a first condition; switching the clock frequency of the MIPI signal to a target clock frequency under the condition that each acquired second signal parameter meets the first condition; wherein, the first antenna is: an antenna having the greatest interference with the MIPI signal among the at least two antennas; the second antenna is: and the other antennas except the first antenna in the at least two antennas.
Optionally, in an embodiment of the present application, the first signal parameter includes: reference signal received power; the first condition includes: the reference signal received power is smaller than a first threshold.
Optionally, in an embodiment of the present application, the processor 110 is further configured to obtain an available clock frequency range of the MIPI signal; and determining a target clock frequency matched with the radio frequency band in the acquired available clock frequency range.
Optionally, in the embodiment of the present application, the processor 110 is specifically configured to use, as the target clock frequency, a clock frequency that has a minimum interference to the radio frequency band within the available clock frequency range.
Optionally, in the embodiment of the present application, the processor 110 is further configured to maintain the clock frequency of the MIPI signal when the clock frequency of the MIPI signal is detected to interfere with the radio frequency band of the electronic device, and the first signal parameter or any of the second signal parameters does not satisfy the first condition.
In the electronic device provided by the embodiment of the application, when the clock frequency of the MIPI signal is detected to generate interference on the radio frequency band of the electronic device under the condition that the electronic device is provided with a plurality of antennas, the electronic device can judge whether the signal receiving and transmitting parameters of one or a plurality of antennas of the electronic device meet the first condition or not, and switch the MIPI clock frequency under the condition that the signal receiving and transmitting parameters of one or a plurality of antennas of the electronic device meet the first condition. Therefore, the electronic equipment can measure the current radio frequency communication channel and signal quality by detecting the signal receiving and transmitting parameters of each antenna, and then determine whether to switch the MIPI clock frequency according to the current actual situation, so that the clock frequency of the MIPI signal can not be frequently switched due to the change of the communication frequency band, the consumption of the electronic equipment resource is reduced, and the display effect of the display screen is optimized.
It should be appreciated that in embodiments of the present application, the input unit 104 may include a graphics processor (Graphics Processing Unit, GPU) 1041 and a microphone 1042, the graphics processor 1041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 107 includes a touch panel 1071 and other input devices 1072. The touch panel 1071 is also referred to as a touch screen. The touch panel 1071 may include two parts of a touch detection device and a touch controller. Other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein. Memory 109 may be used to store software programs as well as various data including, but not limited to, application programs and an operating system. The processor 110 may integrate an application processor that primarily handles operating systems, user interfaces, applications, etc., with a modem processor that primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 110.
The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements each process of the above clock frequency switching method embodiment, and can achieve the same technical effects, and in order to avoid repetition, the description is omitted here.
Wherein the processor is a processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium such as a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
The embodiment of the application further provides a chip, which comprises a processor and a communication interface, wherein the communication interface is coupled with the processor, and the processor is used for running programs or instructions to realize the processes of the clock frequency switching method embodiment, and the same technical effects can be achieved, so that repetition is avoided, and the description is omitted here.
It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, chip systems, or system-on-chip chips, etc.
Embodiments of the present application provide a computer program product stored in a non-volatile storage medium, the program product being executable by at least one processor to implement a method as described in the first aspect.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present application.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.
Claims (8)
1. A clock frequency switching method applied to a clock frequency switching device, the method comprising:
acquiring a second signal parameter of a second antenna receiving and transmitting signal under the condition that the clock frequency of the MIPI signal of the mobile industry processor generates interference on the radio frequency band of the electronic equipment and the first signal parameter of the first antenna receiving and transmitting signal meets a first condition; the electronic device includes at least two antennas;
switching the clock frequency of the MIPI signal to a target clock frequency if each second signal parameter meets the first condition;
the method further comprises the steps of:
when the clock frequency of the MIPI signal is detected to generate interference on the radio frequency band of the electronic equipment, and the first signal parameter or any one of the second signal parameters does not meet the first condition, the clock frequency of the MIPI signal is maintained;
Wherein, the first antenna is: an antenna with the largest interference with the MIPI signal in the at least two antennas; the second antenna is: other antennas than the first antenna among the at least two antennas;
the first signal parameter comprises at least one of: reference signal received power; the first condition includes: the reference signal received power is less than a first threshold.
2. The method of claim 1, wherein prior to the switching the clock frequency of the MIPI signal to a target clock frequency, the method further comprises:
acquiring an available clock frequency range of the MIPI signal;
and determining the target clock frequency matched with the radio frequency band in the available clock frequency range.
3. The method of claim 2, wherein determining a target clock frequency matching the radio frequency band within the available clock frequency range comprises:
and taking the clock frequency with the smallest interference degree on the radio frequency band as a target clock frequency in the available clock frequency range.
4. A clock frequency switching apparatus, the apparatus comprising: the device comprises a detection module, an acquisition module and an execution module;
The acquisition module is configured to acquire a second signal parameter of the second antenna transmit-receive signal when the detection module detects that the clock frequency of the mobile industry processor interface MIPI signal interferes with the radio frequency band of the electronic device and the first signal parameter of the first antenna transmit-receive signal meets a first condition; the electronic device includes at least two antennas;
the execution module is used for switching the clock frequency of the MIPI signal to a target clock frequency under the condition that each second signal parameter acquired by the acquisition module meets the first condition;
the execution module is further configured to maintain the clock frequency of the MIPI signal when the detection module detects that the clock frequency of the MIPI signal interferes with the radio frequency band of the electronic device, and the first signal parameter or any one of the second signal parameters does not satisfy the first condition;
wherein, the first antenna is: an antenna with the largest interference with the MIPI signal in the at least two antennas; the second antenna is: other antennas than the first antenna among the at least two antennas;
the first signal parameters include: reference signal received power; the first condition includes: the reference signal received power is less than a first threshold.
5. The apparatus of claim 4, wherein the switching means further comprises: a determining module;
the acquisition module is further used for acquiring an available clock frequency range of the MIPI signal;
the determining module is configured to determine, in the available clock frequency range acquired by the acquiring module, a target clock frequency matched with the radio frequency band.
6. The apparatus according to claim 5, wherein the determining module is configured to specifically set, as the target clock frequency, a clock frequency that has a minimum interference to the radio frequency band within the available clock frequency range.
7. An electronic device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, which when executed by the processor implements the steps of the clock frequency switching method of any one of claims 1-3.
8. A readable storage medium, characterized in that the readable storage medium has stored thereon a program or instructions which, when executed by a processor, implement the steps of the clock frequency switching method according to any of claims 1-3.
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| CN202110303018.9A CN113163145B (en) | 2021-03-22 | 2021-03-22 | Clock frequency switching method, clock frequency switching device, electronic equipment and readable storage medium |
| PCT/CN2022/081203 WO2022199446A1 (en) | 2021-03-22 | 2022-03-16 | Clock frequency switching method and apparatus, electronic device, and readable storage medium |
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| CN113163145B (en) * | 2021-03-22 | 2023-10-31 | 维沃移动通信有限公司 | Clock frequency switching method, clock frequency switching device, electronic equipment and readable storage medium |
| CN114900218B (en) * | 2022-04-11 | 2023-07-14 | 荣耀终端有限公司 | Method for acquiring antenna combination, electronic device and computer readable storage medium |
| CN114978226B (en) * | 2022-05-09 | 2024-03-12 | Oppo广东移动通信有限公司 | Switching method, device, equipment and storage medium of communication device |
| CN115001534A (en) * | 2022-05-30 | 2022-09-02 | Oppo广东移动通信有限公司 | Frequency hopping implementation method and device, electronic equipment and storage medium |
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