CN116805883A - Control method of electronic device and electronic device - Google Patents
Control method of electronic device and electronic device Download PDFInfo
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- CN116805883A CN116805883A CN202310300363.6A CN202310300363A CN116805883A CN 116805883 A CN116805883 A CN 116805883A CN 202310300363 A CN202310300363 A CN 202310300363A CN 116805883 A CN116805883 A CN 116805883A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- 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
- H04B7/022—Site diversity; Macro-diversity
- H04B7/026—Co-operative diversity, e.g. using fixed or mobile stations as relays
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- 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
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0602—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using antenna switching
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- 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
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
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Abstract
The application provides a control method of an electronic device and the electronic device. The electronic device includes a first antenna and a second antenna. The control method comprises the following steps: setting one of the first antenna and the second antenna as a default antenna; receiving a plurality of packets within an interval; comparing, for each of the plurality of packets, a signal strength corresponding to the first antenna and a signal strength of the second antenna to generate a first comparison result; updating the first value or the second value according to the first comparison result; comparing the first value with the second value upon expiration of the interval to generate a second comparison result; one of the first antenna and the second antenna is selected as a default antenna according to the second comparison result.
Description
Cross Reference to Related Applications
The present application claims the benefit of U.S. provisional application No.63/323,556 filed on 3 months 25 of 2022. The content of this application is incorporated herein by reference.
Technical Field
The present application relates to the field of communications, and in particular, to a control method of an electronic device and an electronic device.
Background
Multipath (Multipath) is a phenomenon that occurs when electromagnetic waves bounce off surfaces and arrive at a receiver at different times. When these signals arrive at the receiver with different phases, a cancellation form called fading results. Antenna diversity is a technique that may be used to improve wireless communications and maximize the chance of a packet (packet) passing at a given time and in a non-static environment at a given location between a receiver and a transmitter.
In a conventional antenna diversity mechanism, when the receiver of the current device receives any packet, the physical layer of the receiver will detect the signal strengths of the two antennas in the conventional short training field (legacy short training field, L-STF) of the packet and select the antenna with the higher signal strength to receive the subsequent data. However, this antenna diversity mechanism has several problems. The first problem is that antenna selection is done in the L-STF of the packet, but at this point the receiver cannot recognize the unicast to me (unified to me) packet. For example, if the signal received by the first antenna is of good quality, but there is a strong signal near the second antenna, the receiver will always select the second antenna to receive subsequent data, even if the strong signal is not unicast to the receiver. A second problem is that peer devices may use inappropriate antenna information to send packets to the current device. For example, if the current device transmits beamforming information of the first antenna to the counterpart device as antenna information, the counterpart device will use the antenna information corresponding to the first antenna as default antenna information. Thus, if the current device switches to the second antenna, the receiver performance may decrease because the peer device still uses this default antenna information for signaling. A third problem is that performance may be reduced due to the different loading of the two antennas. In particular, the antenna load will affect the performance of the transmitted signal, i.e. the calibration data of the first antenna cannot be used for the second antenna.
Disclosure of Invention
It is therefore an object of the present application to provide an antenna diversity arrangement with a better antenna switching mechanism to solve the above-mentioned problems.
According to one embodiment of the application, a control method of an electronic device is disclosed, the electronic device including a first antenna and a second antenna. The control method comprises the following steps: setting one of the first antenna and the second antenna as a default antenna; receiving a plurality of packets within an interval; comparing, for each of the plurality of packets, a signal strength corresponding to the first antenna and a signal strength of the second antenna to generate a first comparison result; increasing a first value or a second value in response to the first comparison result indicating that the signal strength corresponding to the first antenna is greater than or less than the signal strength of the second antenna; upon expiration of the interval, comparing the first value and the second value to generate a second comparison result; and selecting one of the first antenna and the second antenna as the default antenna according to the second comparison result.
According to one embodiment of the present application, an electronic device is disclosed that includes a receiver and a controller. The receiver is configured to set one of a first antenna and a second antenna as a default antenna and receive a plurality of packets within an interval, wherein for each packet of the plurality of packets, the receiver compares a signal strength corresponding to the first antenna and a signal strength of the second antenna to generate a first comparison result; the receiver increases the first value or the second value in response to the first comparison result indicating that the signal strength corresponding to the first antenna is greater or less than the signal strength of the second antenna. The control circuit is coupled with the receiver, wherein the control circuit compares the first counter value and the second counter value to generate a second comparison result when the interval expires, and selects one of the first antenna and the second antenna as the default antenna according to the second comparison result.
The above-described embodiments of the present application can select the default antenna based on the signal strength of the first antenna and the signal strength of the second antenna.
These and other objects of the present application will no doubt become obvious to those of ordinary skill in the art after having read the following detailed description of the preferred embodiments which are illustrated in the various drawing figures and drawings.
Drawings
Fig. 1 is a diagram illustrating an electronic device according to an embodiment of the present application.
Fig. 2 is a flowchart of a control method of an electronic device according to an embodiment of the present application.
Fig. 3 illustrates grouping and power detection according to one embodiment of the application.
Fig. 4 shows a count interval for setting a default antenna according to one embodiment of the application.
Fig. 5 shows unicast to my packets and packets not intended for the electronic device.
Fig. 6 is a flowchart of a control method of an electronic device according to an embodiment of the present application.
Detailed Description
Certain terms are used throughout the following description and claims to refer to particular system components. As will be appreciated by those skilled in the art, manufacturers may refer to a component by different names. This document does not intend to distinguish between components that differ in name but not function. In the following discussion and claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to … …". The term "couple" is intended to mean either an indirect or direct electrical connection. Thus, if a first device couples to a second device, that connection may be through a direct electrical connection, or through an indirect electrical connection via other devices and connections.
Fig. 1 is a schematic diagram of an electronic device 100 according to an embodiment of the present application, wherein the electronic device 100 is an antenna diversity device having a plurality of antennas (in this embodiment, two antennas ANT1 and ANT2 are used as a plurality of antennas). As shown in fig. 1, the electronic device 100 includes a switching circuit 110, a receiver 120, and a control circuit 130, wherein the receiver 120 includes a management information base (management information base, MIB) counter 122, a first counter 124, and a second counter 126. In this embodiment, the electronic device 100 may be any device having a wireless communication mechanism, such as a cellular phone, a tablet, and a notebook computer. Further, the receiver 120 may include front-end circuitry, physical layer circuitry, and media access control (media access control, MAC) layer circuitry; the control circuit 130 may be implemented in software or hardware.
Fig. 2 is a flowchart of a control method of the electronic device 100 according to an embodiment of the present application. In step 200, the process starts, and the electronic device 100 is powered on and initializes the internal circuit. In step 202, the electronic device 100 starts to establish a link with an Access Point (AP) 102. During establishment of a link with the AP 102, the receiver 120 generates a handoff signal V SW To select one of the antennas ANT1 and ANT2, thereby obtaining calibration data of the two antennas ANT1 and ANT 2. Specifically, the receiver 120 may generate a switching signal V to the switching circuit 110 SW Causing the switching circuit 110 to output to the receiver 120 a first signal received by the antenna ANT1, wherein the first signal may be a training signal or a calibration signal transmitted by the AP 102, or the first signal may be provided by a transmitter of the electronic device 100A signal. Meanwhile, the signal received by the antenna ANT2 may not enter the receiver 120. At this time, the receiver 120 performs a calibration step based on the received first signal to obtain calibration data of the antenna ANT1, wherein the calibration data may include digital pre-distortion (DPD) calibration data, transmitter signal strength indication (transmitter signal strength indicator, TSSI) differential non-linearity (differential nonlinearity, DNL) calibration data, and the like. Then, after the calibration data of the antenna ANT1 is obtained, the receiver 120 may generate a switching signal V to the switching circuit 110 SW Such that the switching circuit 110 outputs the second signal received by the antenna ANT2 to the receiver 120, wherein the second signal may be a training signal or a calibration signal transmitted by the AP 102, or the second signal may be a signal provided by a transmitter of the electronic device 100. Meanwhile, the signal received by the antenna ANT1 may not enter the receiver 120. At this time, the receiver 120 performs a calibration step based on the received second signal to obtain calibration data of the antenna ANT2, wherein the calibration data may include DPD calibration data, TSSI DNL calibration data, and the like.
Calibration data for antennas ANT1 and ANT2 are stored in registers within receiver 120 for further use.
According to the above, the receiver 120 may store calibration data of the two antennas ANT1 and ANT2 by calibrating the two antennas ANT1 and ANT2 when the electronic device 100 establishes a link with the AP 102, or by calibrating the two antennas ANT1 and ANT2 after the electronic device 100 establishes a link with the AP 102. Accordingly, in a subsequent operation of the electronic device 100, the receiver 120 may always calibrate the received signal using the appropriate calibration data, regardless of which of the antennas ANT1 and ANT2 is used. That is, if the antenna ANT1 is selected, the receiver 120 uses calibration data of the antenna ANT 1; if antenna ANT2 is selected, receiver 120 uses the calibration data for antenna ANT 2.
In step 206, the receiver 120 sets a default antenna. The receiver 120 generates a switching signal V SW To select one of the antennas ANT1 and ANT2 to be used as a default antenna. In this embodiment, initially, the antenna ANT1 is used as a default antenna.
In step 208, the receiver 120 resets (reset) the first counter 124 and the second counter 126, and the first counter 124 and the second counter 126 start to operate. Then, the receiver 120 receives the packet from the default antenna and starts to determine which of the antennas ANT1 and ANT2 receives the signal having the higher power/strength. Fig. 3 illustrates a packet 300 according to an embodiment of the present application, wherein the packet 300 includes a conventional short training field (legacy short training field, L-STF), a conventional long training field (legacy long training field, L-LTF), a conventional signal field (legacy signal field, L-SIG), a repeated L-SIG (RL-SIG), etc., and the receiver 120 can detect signal strengths corresponding to the antennas ANT1 and ANT2 in the L-STF. Specifically, in a first period (e.g., 2.4 μs) of the L-STF, the receiver 120 generates a switching signal V selecting the antenna ANT1 to the switching circuit 110 SW The switching circuit 110 is caused to output the first signal received by the antenna ANT1 to the receiver 120, and the receiver 120 detects the power of the first signal to obtain a received signal strength indication (received signal strength indicator, RSSI) corresponding to the antenna ANT 1. Then, in a second period (e.g., 2.4 μs) after the first period of the L-STF, the receiver 120 generates a switching signal V selecting the antenna ANT2 to the switching circuit 110 SW The switching circuit 110 is caused to output the second signal received by the antenna ANT2 to the receiver 120, and the receiver 120 detects the power of the second signal to obtain the RSSI corresponding to the antenna ANT 2. Then, in a third period (e.g., 2.4 μs) after the second period of the L-STF, the receiver 120 compares the RSSI corresponding to the antenna obtained in the first period and the second period to generate a comparison result, and the receiver 120 updates the first value (hereinafter, referred to as a first counter value) CV1 of the first counter 124 or the second value (hereinafter, referred to as a second counter value) CV2 of the second counter 126 according to the comparison result, and switches back to the default antenna. Specifically, if the comparison result indicates that the RSSI corresponding to the antenna ANT1 is greater than the RSSI corresponding to the antenna ANT2, the receiver 120 controls the first counter 124 to update the counter value CV1 (e.g., increment the counter value CV1 by 1), and at this time, the second count is not updatedCounter value CV2 of counter 126. Further, if the comparison result indicates that the RSSI corresponding to the antenna ANT1 is smaller than the RSSI corresponding to the antenna ANT2, the receiver 120 controls the second counter 126 to update the counter value CV2 (e.g., increment the counter value CV2 by 1), and at this time, the counter value CV1 of the first counter 124 is not updated.
In one embodiment, the receiver 120 or the control circuit 130 may set an interval (hereinafter, referred to as a counting interval) shown in fig. 4, and the counting interval is used to accumulate counter values CV1 and CV2, and the receiver 120 always uses the same antenna to receive a field after the L-STF of each packet. That is, in the counting interval between time t0 and time t1, the receiver 120 will receive all other fields except the L-STF using the antenna ANT1 for each packet. In one embodiment, the receiver 120 may receive multiple packets within the count interval, e.g., the count interval may be 200 milliseconds (ms), and the receiver 120 may receive 50 to 100 packets within one count interval.
In step 210, after the end of the count interval is reached (i.e., the count interval expires, time t 1), the control circuit 130 collects counter values CV1 and CV2. In step 212, the control circuit 130 compares the counter value CV1 and the counter value CV2 to generate a comparison result. In this embodiment, the control circuit 130 determines whether to update the default antenna based on the comparison result. Specifically, if the counter value CV1 is greater than the counter value CV2, this means that the antenna ANT1 has a better signal strength on average, and thus the control circuit 130 generates the control signal V to the receiver 120 C To inform the information such that the receiver 120 still sets the antenna ANT1 as a default antenna. Furthermore, if the counter value CV2 is greater than the counter value CV1, this means that the antenna ANT2 has a better signal strength on average, and thus the control circuit 130 generates the control signal V to the receiver 120 C To inform the information such that the receiver 120 sets the antenna ANT2 as a default antenna.
After step 212 is performed, the flow returns to step 206 to set the default antenna. In the embodiment shown in fig. 4, the comparison result indicates that the counter value CV2 is greater than the counter value CV1, and thus the receiver 120 sets the antenna ANT2 as the default antenna.
During the counting interval between time t1 and time t2, the receiver 120 will receive all other fields except a portion of the L-STF of each packet using the antenna ANT2, and the receiver 120 detects the RSSI of the two antennas ANT1 and ANT2 within the L-STF of each packet to update the counter values CV1 and CV2. Then, after reaching time t2, the control circuit 130 collects the counter value CV1 and the counter value CV2, and compares the counter value CV1 and the counter value CV2 to generate a comparison result. In this embodiment, when the end of the counting interval is reached, the receiver 120 still sets the antenna ANT2 as the default antenna because the comparison result indicates that the counter value CV2 is greater than the counter value CV1.
In the embodiments shown in fig. 2 to 4, by setting the counting interval and using a default antenna to receive all other fields in the counting interval except for a portion of the L-STF of the packet, the antennas are not switched too frequently, and the receiver 120 can receive a better signal as a whole.
Further, in step 208, because the signal strength detection is for all received packets, counter value CV1 and counter value CV2 may not reflect the true power of the packets that receiver 120 needs to receive. Taking fig. 5 as an example, packets received by the electronic device 100 include packets unicast to my and packets not intended for the electronic device 100 within the audible range of the electronic device 100. If a certain number of packets of the electronic device 100 are not specific to the electronic device 100, this means that the counter values CV1 and CV2 have no reference value (reference value). Thus, MIB counter 122 is provided to record the number of unicast to my packets for use in determining whether to update the default antenna based on counter values CV1 and CV2. That is, in an alternative embodiment, in step 208, the receiver 120 also resets the MIB counter 122, and for each packet that has been detected to obtain RSSI corresponding to antenna ANT1 and RSSI corresponding to ANT2, the receiver 120 also analyzes the content of each packet to determine whether the received packet is unicast to my packet. If the received packet is a unicast to my packet, the receiver 120 controls the MIB counter 122 to update the counter value cv_mib (e.g., increment the counter value cv_mib by 1); and if the received packet is not unicast to my packet, the receiver 120 does not update the counter value cv_mib. In one embodiment, the receiver 120 may analyze a preamble (preamble) or header of a packet to determine whether the packet is unicast to my packet. For example, if the packet includes the MAC address of the electronic device 100 or the packet belongs to a basic service set (basic service set, BSS) including the electronic device 100, the packet may be used as a unicast to my packet.
Fig. 6 is a flowchart of a control method according to an embodiment of the present application, wherein the flowchart shown in fig. 6 may correspond to the operations of step 212 and step 206 shown in fig. 2. In step 600, the flow begins. In step 602, after the count interval is reached, the control circuit 130 determines whether the ratio between the counter value cv_mib and the total packet count is greater than a threshold, for example 60%, and if so, the flow proceeds to step 604 to use the antenna corresponding to the greater of the counter values CV1 and CV2 as the default antenna; if not, flow proceeds to step 606 to use the previous default antenna. In this embodiment, the total packet count may be the sum of counter values CV1 and CV2. Taking fig. 4 as an example, at time t0, assuming that the counter value CV2 is greater than the counter value CV1, if the ratio between the counter value cv_mib and the total packet count is greater than a threshold (e.g., 60%), the control circuit 130 controls the receiver 120 to use the antenna ANT2 as a default antenna for the next count interval; and if the ratio between the counter value cv_mib and the total packet count is not greater than the threshold value, the control circuit 130 directly controls the receiver 120 to use the antenna ANT1 as a default antenna again for the next count interval.
Those skilled in the art will readily observe that numerous modifications and alterations of the apparatus and method may be made while maintaining the teachings of the present application. Accordingly, the above disclosure should be construed as limited only by the metes and bounds of the appended claims.
Claims (17)
1. A control method of an electronic device, characterized in that the electronic device includes a first antenna and a second antenna, and the control method includes:
setting one of the first antenna and the second antenna as a default antenna;
receiving a plurality of packets within an interval;
comparing, for each of the plurality of packets, a signal strength corresponding to the first antenna and a signal strength corresponding to the second antenna to generate a first comparison result;
increasing a first value in response to the first comparison result indicating that the signal strength corresponding to the first antenna is greater than the signal strength corresponding to the second antenna, or increasing a second value in response to the first comparison result indicating that the signal strength corresponding to the first antenna is less than the signal strength corresponding to the second antenna;
upon expiration of the interval, comparing the first value and the second value to generate a second comparison result; and
one of the first antenna and the second antenna is selected as the default antenna according to the second comparison result.
2. The control method according to claim 1, wherein the step of comparing the signal strength corresponding to the first antenna and the signal strength corresponding to the second antenna for each of the plurality of packets to generate a first comparison result comprises:
receiving a first signal using the first antenna within a particular field of the packet to determine a signal strength corresponding to the first antenna, wherein the first signal corresponds to a first period of time of the particular field;
receiving a second signal within the particular field of the packet using the second antenna to determine a signal strength corresponding to the second antenna, wherein the second signal corresponds to a second period of time of the particular field; and
the signal strength corresponding to the first antenna and the signal strength corresponding to the second antenna are compared within the specific field to generate the first comparison result.
3. The control method of claim 2, wherein the step of receiving the plurality of packets within the interval comprises:
for each of the plurality of packets, all other fields except a portion of the particular field of the packet are received using the default antenna.
4. The control method according to claim 1, characterized in that the control method further comprises:
for each of the plurality of packets, determining whether the packet is a unicast to my packet; and
in response to the packet being a unicast to my packet, the management information base MIB value is incremented.
5. The control method according to claim 4, characterized in that the control method further comprises:
when the interval expires, it is determined whether a ratio of the MIB value to a total packet count is greater than a threshold.
6. The control method according to claim 5, wherein the step of selecting one of the first antenna and the second antenna as the default antenna according to the second comparison result comprises:
determining or updating the default antenna of the first antenna and the second antenna according to the second comparison result if the ratio is greater than the threshold; and
if the ratio is not greater than the threshold, the default antenna is not updated and is used directly in the next interval.
7. The control method according to claim 1, characterized in that the control method further comprises:
establishing a link with an access point;
receiving a first signal from the first antenna;
performing a calibration step based on the first signal to obtain calibration data for the first antenna;
receiving a second signal from the second antenna; and
the calibration step is performed based on the second signal to obtain the calibration data for the second antenna.
8. The control method according to claim 7, characterized in that when the electronic device establishes the link with the access point, a step of performing the calibration step based on the first signal to obtain the calibration data of the first antenna and a step of performing the calibration step based on the second signal to obtain the calibration data of the second antenna are performed.
9. The control method according to claim 1 or 5, characterized in that,
wherein, in response to the first comparison result indicating that the signal strength corresponding to the first antenna is greater than the signal strength corresponding to the second antenna, increasing a first value and leaving a second value unchanged;
in response to the first comparison result indicating that the signal strength corresponding to the first antenna is less than the signal strength corresponding to the second antenna, increasing a second value and leaving the first value unchanged;
wherein the sum of the first value and the second value represents a total packet count.
10. An electronic device, the electronic device comprising:
a receiver configured to set one of a first antenna and a second antenna as a default antenna and to receive a plurality of packets within an interval, wherein for each packet of the plurality of packets, the receiver compares a signal strength corresponding to the first antenna and a signal strength corresponding to the second antenna to generate a first comparison result; and the receiver increasing a first value in response to the first comparison indicating that the signal strength corresponding to the first antenna is greater than the signal strength corresponding to the second antenna, or increasing a second value in response to the first comparison indicating that the signal strength corresponding to the first antenna is less than the signal strength corresponding to the second antenna; and
a control circuit coupled to the receiver, wherein the control circuit compares the first value and the second value to generate a second comparison result when the interval expires, and selects one of the first antenna and the second antenna as the default antenna according to the second comparison result.
11. The electronic device of claim 10, wherein the receiver receives a first signal using the first antenna to determine a signal strength corresponding to the first antenna within a particular field of the packet, wherein the first signal corresponds to a first period of time of the particular field; the receiver receives a second signal using the second antenna to determine a signal strength corresponding to the second antenna within the particular field of the packet, wherein the second signal corresponds to a second period of time of the particular field; and the receiver compares the signal strength corresponding to the first antenna and the signal strength corresponding to the second antenna for a third period of time of the specific field to generate the first comparison result.
12. The electronic device of claim 11, wherein for each packet of the plurality of packets, the receiver uses the default antenna to receive all other fields except a portion of the particular field of the packet.
13. The electronic device of claim 10, wherein for each packet of the plurality of packets, the receiver determines whether the packet is a unicast to my packet; and in response to the packet being a unicast to my packet, the receiver increases a management information base MIB value.
14. The electronic device of claim 13, wherein the control circuit determines whether a ratio of the MIB value to a total packet count is greater than a threshold when the interval expires.
15. The electronic device of claim 14, wherein if the ratio is greater than the threshold, determining or updating the default antenna from the first antenna and the second antenna based on the second comparison result; and if the ratio is not greater than the threshold, not updating the default antenna and directly using the default antenna at a next interval.
16. The electronic device of claim 10, wherein the receiver further performs the steps of:
establishing a link with an access point;
receiving a first signal from the first antenna;
performing a calibration step based on the first signal to obtain calibration data for the first antenna;
receiving a second signal from the second antenna; and
the calibration step is performed based on the second signal to obtain the calibration data for the second antenna.
17. The electronic device of claim 16, wherein when the electronic device establishes the link with the access point, performing the step of performing the calibration based on the first signal to obtain the calibration data for the first antenna and performing the step of performing the calibration based on the second signal to obtain the calibration data for the second antenna are performed.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US63/323,556 | 2022-03-25 | ||
| US18/123,955 | 2023-03-20 | ||
| US18/123,955 US20230327743A1 (en) | 2022-03-25 | 2023-03-20 | Adaptive antenna diversity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116805883A true CN116805883A (en) | 2023-09-26 |
Family
ID=88079018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310300363.6A Pending CN116805883A (en) | 2022-03-25 | 2023-03-24 | Control method of electronic device and electronic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116805883A (en) |
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2023
- 2023-03-24 CN CN202310300363.6A patent/CN116805883A/en active Pending
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