CN114374445B - Electronic equipment and radio frequency calibration method thereof - Google Patents
Electronic equipment and radio frequency calibration method thereof Download PDFInfo
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- CN114374445B CN114374445B CN202210081476.7A CN202210081476A CN114374445B CN 114374445 B CN114374445 B CN 114374445B CN 202210081476 A CN202210081476 A CN 202210081476A CN 114374445 B CN114374445 B CN 114374445B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/11—Monitoring; Testing of transmitters for calibration
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/21—Monitoring; Testing of receivers for calibration; for correcting measurements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
Abstract
The application discloses an electronic device and a radio frequency calibration method of the electronic device, wherein the electronic device comprises: the flexible part is internally provided with a radio frequency unit which is connected with an antenna of the electronic equipment; the radio frequency calibration unit is connected with the radio frequency unit and is used for calibrating radio frequency parameters of the radio frequency unit according to the first bending angle of the radio frequency unit.
Description
Technical Field
The application belongs to the technical field of radio frequency calibration, and particularly relates to electronic equipment and a radio frequency calibration method of the electronic equipment.
Background
At present, the communication is carried out through the electronic equipment, or the internet is accessed by using the data service, which is an indispensable function for the user to use the electronic equipment. In the use process, the quality of the signals directly influences the experience effect of the user. To ensure the quality of the signal, the signal is usually processed by a radio frequency unit.
However, the performance of the radio frequency unit is unstable, so that the quality of the signal processed by the radio frequency unit is poor, which affects the user experience.
Disclosure of Invention
The application aims to provide electronic equipment and a radio frequency calibration method of the electronic equipment, which are used for solving the technical problem that in the related art, the quality of signals is poor after the signals are processed directly through a radio frequency unit due to unstable performance of the radio frequency unit.
In order to solve the technical problems, the application is realized as follows:
in a first aspect, an embodiment of the present application provides an electronic device, including:
the flexible part is internally provided with a radio frequency unit which is connected with an antenna of the electronic equipment;
the radio frequency calibration unit is connected with the radio frequency unit and is used for calibrating radio frequency parameters of the radio frequency unit according to the first bending angle of the radio frequency unit.
In a second aspect, an embodiment of the present application proposes a radio frequency calibration method for an electronic device, applied to an electronic device of the first aspect, where the method includes:
a radio frequency calibration unit of the electronic equipment acquires a first bending angle of a radio frequency unit of the electronic equipment;
the radio frequency calibration unit calibrates radio frequency parameters of the radio frequency unit according to the first bending angle.
The electronic equipment in the embodiment of the application comprises: a flexible portion and a radio frequency calibration unit; the flexible part is provided with a radio frequency unit which is connected with an antenna of the electronic equipment; the radio frequency calibration unit is connected with the radio frequency unit and is used for calibrating radio frequency parameters of the radio frequency unit according to the first bending angle of the radio frequency unit. Therefore, when the flexible part is bent to different first bending angles, the radio frequency calibration unit can calibrate radio frequency parameters of the radio frequency unit according to the different first bending angles, so that the performance and output power of the radio frequency unit are ensured, the effect of the radio frequency unit on signal processing is improved, and the user experience degree is improved.
Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.
Drawings
The foregoing and/or additional aspects and advantages of the application will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application;
FIG. 2 is a second schematic diagram of an electronic device according to an embodiment of the present application;
FIG. 3 is a third schematic diagram of an electronic device according to an embodiment of the present application;
FIG. 4 is a schematic diagram of an electronic device according to an embodiment of the present application;
fig. 5 is a fifth (bending state) of the schematic structural diagram of the electronic device according to the embodiment of the present application;
FIG. 6 is a schematic diagram of an electronic device according to an embodiment of the present application (a partially enlarged view);
fig. 7 is a flowchart of a radio frequency calibration method of an electronic device according to an embodiment of the present application.
Reference numerals:
the electronic device 100 is configured to provide a user interface,
a flexible portion 110, a radio frequency unit 111;112 a first flexible portion, 113 a second flexible portion;
the device comprises a radio frequency calibration unit 120, an angle detection unit 121, a processing unit 122, an impedance tuning unit 123, a radio frequency parameter adjustment channel 124, a transmitting end 125 and a receiving end 126;
a main body 130.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements throughout or elements having like or similar functionality. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting 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 features of the application "first", "second" and the like in the description and in the claims may be used for the explicit or implicit inclusion of one or more such features. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two 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.
In the description of the present application, it should be understood that the terms "vertical," "horizontal," "vertical," "clockwise," "counterclockwise," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, and are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
A Power Amplifier (PA) in the related art is a frequency device, and linearity, output Power and efficiency of the PA are closely related to output impedance of the PA. If the PA is bent, the output impedance of the PA will be greatly different during the bending process, resulting in a great difference in the radio frequency performance of the PA. After the PA is possibly bent to a certain angle, the PA impedance deviates too much (for example, the normal PA impedance is required to be 50Ω, the PA impedance after bending is too large or too small compared with 50Ω), the radio frequency linear power cannot meet the requirement (for example, the requirement of a 3GPP access network cannot be met), and therefore the performance and output power of the PA can be affected in the bending process of the PA, and the signal processing capability of the PA is affected.
Therefore, it is generally necessary to calibrate the rf unit (i.e., PA), and then perform signal processing on the calibrated rf unit, however, currently, a fixed rf calibration parameter is generally used to calibrate the rf unit, and the impedance of the rf unit varies differently under different bending degrees of the rf unit, so that the influence on the rf performance of the rf unit is different. Therefore, if the radio frequency unit is calibrated by adopting the fixed radio frequency calibration parameters, the linearity and the output power of the radio frequency unit are affected, and the signal processing effect of the radio frequency unit is further affected. The electronic equipment in the embodiment of the application can calibrate the radio frequency parameters of the radio frequency unit according to the different first bending angles of the radio frequency unit, thereby ensuring the radio frequency performance of the radio frequency unit under different bending angles, ensuring the effect of processing signals under different bending angles of the radio frequency unit and improving the user experience.
The following describes an electronic device and a radio frequency calibration method of the electronic device according to an embodiment of the present application with reference to fig. 1 to 7.
As shown in fig. 1, the electronic device 100 includes a flexible portion 110 and a radio frequency calibration unit 120; the flexible part is provided with a radio frequency unit 111 which is connected with an antenna of the electronic equipment; the radio frequency calibration unit is connected with the radio frequency unit and is used for calibrating radio frequency parameters of the radio frequency unit according to the first bending angle of the radio frequency unit.
In the embodiment of the application, the flexible part can be a part which can be deformed in the electronic equipment, such as a watchband of a telephone watch, or a folding part for folding the electronic equipment.
In the embodiment of the application, the electronic device may further include a main body portion, and it is understood that the main body portion is a structural portion of the electronic device other than the flexible portion, for example, a header of a phone watch, or a structural portion corresponding to a portion of the electronic device that cannot be folded.
The antenna may be provided in the main body, for example.
For example, the rf calibration unit may be provided on the flexible portion, or on the main body portion, or partially on the flexible portion, or partially on the main body portion.
It is understood that the rf unit is a flexible rf unit, and is bendable.
It can be appreciated that, since the rf unit 111 is disposed on the flexible portion 110, the first bending angle of the rf unit may be: the bending angle of the flexible portion, or the first bending angle of the radio frequency unit may be: bending angle of the flexible part where the radio frequency unit is located. Therefore, the radio frequency calibration unit can flexibly calibrate the radio frequency parameters of the radio frequency unit under different bending angles of the flexible part where the radio frequency unit is located, and the influence on radio frequency performance caused by the change of the impedance of the radio frequency unit under different bending angles is eliminated.
According to the electronic equipment provided by the embodiment of the application, the radio frequency unit is arranged on the flexible part and is connected with the antenna of the electronic equipment; the radio frequency calibration unit is connected with the radio frequency unit and is used for calibrating radio frequency parameters of the radio frequency unit according to the first bending angle of the radio frequency unit. Therefore, when the flexible part is bent to different first bending angles, the radio frequency calibration unit can calibrate radio frequency parameters of the radio frequency unit according to the different first bending angles, so that the performance and output power of the radio frequency unit are ensured, the effect of the radio frequency unit on signal processing is improved, and the user experience degree is improved.
Optionally, in the embodiment of the present application, as shown in fig. 2, the radio frequency calibration unit 120 includes an angle detection unit 121, where the angle detection unit 121 is disposed on the flexible portion 110; the angle detection unit is used for detecting a first bending angle of the radio frequency unit.
It can be understood that the radio frequency calibration unit can calibrate the radio frequency parameters of the radio frequency unit according to the bending angle (i.e. the first bending angle of the radio frequency unit) detected by the angle detection unit, so as to ensure the radio frequency performance of the radio frequency unit.
Optionally, in an embodiment of the present application, as shown in fig. 3 and fig. 6, the radio frequency calibration unit further includes: a processing unit 122 and an impedance tuning unit 123; the processing unit 122 is connected to the angle detection unit 121 and the impedance tuning unit 123, respectively; the impedance tuning unit 123 is connected to the output of the radio frequency unit 111.
The processing unit adjusts the radio frequency calibration parameters of the radio frequency unit through the impedance tuning unit based on the first bending angle detected by the angle detection unit, so that the radio frequency calibration unit calibrates the radio frequency parameters of the radio frequency unit according to the first bending angle of the radio frequency unit.
The processing unit may be a radio frequency processing chip, for example.
The processing unit may be provided in the flexible portion or in the main body portion, for example.
The impedance tuning unit may be provided in the flexible portion or in the main body portion, for example.
Illustratively, the radio frequency unit may be connected to the antenna through an impedance tuning unit.
In a possible example, the processing unit may directly obtain the current bending angle (i.e. the first bending angle) of the radio frequency unit detected by the angle detecting unit, and then adjust, by the impedance tuning unit, the radio frequency calibration parameter of the radio frequency unit based on the current bending angle, so that the radio frequency calibration unit calibrates the radio frequency parameter of the radio frequency unit according to the current bending angle.
In another possible example, the angle detection unit may store the detected bending angle in a storage unit (for example, a nonvolatile NV-SRAM), the CPU in the electronic device may read the current bending angle (i.e., the first bending angle) detected by the angle detection unit and send the current bending angle to the radio frequency processing chip (i.e., the processing unit), and then the radio frequency processing chip may adjust the radio frequency calibration parameter of the radio frequency unit through the impedance tuning unit based on the current bending angle, so as to calibrate the radio frequency parameter of the radio frequency unit by bending.
Optionally, in an embodiment of the present application, as shown in fig. 4 and fig. 6, the impedance tuning unit includes M rf parameter tuning channels.
Wherein, different radio frequency parameter adjusting channels correspond to different radio frequency calibration parameters,
a radio frequency calibration parameter corresponds to a bending angle, and M is a positive integer.
Illustratively, each radio frequency parameter tuning channel may be built based on a resistor, a capacitor.
It can be understood that in the embodiment of the present application, the radio frequency calibration parameters corresponding to the radio frequency units under different bending angles may be calibrated in advance, and then the preset mapping table is created according to the different bending angles and the radio frequency calibration parameters corresponding to the different bending angles, and the preset mapping table is stored in the storage unit of the electronic device.
It can be understood that the preset mapping table includes M mapping relationships, one mapping relationship corresponds to one radio frequency parameter adjustment channel (i.e., one bending angle corresponds to one radio frequency calibration parameter); one mapping relationship is: a mapping between a bend angle and a radio frequency calibration parameter.
It should be noted that one bending angle corresponds to one mapping relationship, that is, bending angles in each mapping relationship are different.
With respect to one possible implementation of creating the above-mentioned preset mapping table: first, the optimal load (i.e., output impedance) is adjusted for the common angle, and the rf parameter calibration is performed. For example, when the watchband of the telephone watch is unfolded, the optimal load (i.e., output impedance) of the PA (i.e., radio frequency unit) is a load; when the bending angle theta' is 25 degrees, the optimal load of the PA is debugged to be B load; when the bending angle theta' is 45 degrees, the optimal load is C load; and when the bending angle θ' is 60 °; the best load for PA is dload. When the bending angle theta' is 90 degrees; the best load for PA is eboad. The optimal load corresponding to each selected angle can be calibrated for at least one radio frequency parameter. And then, according to different bending angles and radio frequency calibration parameters corresponding to the different bending angles, creating the preset mapping table, and storing the preset mapping table in a storage unit (such as a nonvolatile NV-SRAM) of the electronic equipment. Finally, according to the software and hardware supporting capability of the electronic equipment, a table (namely a preset mapping table) of M groups of bending angles, corresponding radio frequency optimal load and calibration parameters can be obtained.
Wherein, a load, B load, C load, D load, E load are each an rf parameter tuning channel (see fig. 6).
It should be noted that, depending on the supporting capability of the software and hardware of the electronic device, M in the present application may be different.
In fig. 6, the impedance tuning unit and the rf unit are provided on the same flexible portion. The output end of the radio frequency unit is connected with the antenna through the impedance tuning unit.
For example, different rf parameter tuning channels may be connected to the output of the rf unit through the switching unit, respectively.
For example, the bending angles corresponding to the 5 radio frequency calibration parameters corresponding to the 5 radio frequency parameter adjustment channels with M being 5, are respectively 0 °,25 °,45 °,60 °,90 °.
If the current angle is not among the M bending angles corresponding to the M radio frequency calibration parameters, the radio frequency calibration parameter corresponding to the bending angle with the smallest difference with the current bending angle among the M bending angles is used as the radio frequency calibration parameter of the current bending angle, thereby determining the radio frequency parameter adjusting channel corresponding to the current bending angle,
it should be noted that if two bending angles with the smallest difference from the current bending angle exist in the M bending angles, the radio frequency calibration parameter corresponding to any bending angle of the two bending angles may be used as the radio frequency calibration parameter of the current bending angle.
In a possible example, the bending angles corresponding to the 5,5 radio frequency parameter adjusting channels are respectively 0 °,25 °,45 °,60 °,90 °, and the current bending angle (i.e., the first bending angle) is 45 °, then the radio frequency parameter adjusting channel corresponding to the radio frequency calibration parameter corresponding to the 45 ° is used as the radio frequency parameter adjusting channel corresponding to the current bending angle, and a switch unit between the radio frequency parameter adjusting channel and the radio frequency unit is closed, so that the radio frequency unit is conducted with the radio frequency parameter adjusting channel, and the radio frequency parameter of the radio frequency unit is calibrated by the radio frequency calibration parameter corresponding to the radio frequency parameter adjusting channel. Meanwhile, the switch unit between the other radio frequency parameter adjusting channels and the radio frequency unit is kept to be disconnected, so that the radio frequency unit is disconnected from the other radio frequency parameter adjusting channels.
Alternatively, in the embodiment of the present application, as shown in fig. 4, the flexible portion includes a first flexible portion 112 and a second flexible portion 113; the radio frequency unit 111 is provided to either one of the first flexible portion and the second flexible portion; the angle detection unit 121 and the radio frequency unit are arranged on the same flexible part, the angle detection unit comprises a distance detection unit, and the distance detection unit comprises a transmitting end 125 and a receiving end 126; the transmitting end 125 and the receiving end 126 are respectively disposed on two sides of the rf unit 111.
The receiving end is used for receiving the signal transmitted by the transmitting end;
the distance detection unit is used for determining a first distance between the transmitting end and the receiving end based on signals received by the receiving end.
It will be appreciated that the transmitting end is used to transmit signals to the receiving end.
In the embodiment of the application, the flexible portion may be a watchband of a telephone watch, and the first flexible portion and the second flexible portion may be a first watchband and a second watchband, respectively.
Illustratively, referring to fig. 4, which is a possible schematic view of the electronic device, the electronic device includes a watch head (i.e. the main body 130) and a first watchband (i.e. the first flexible portion 112) and a second watchband (the second flexible portion 113) disposed on the watch head, and the radio frequency unit 111 is disposed on the first watchband on the left side. The transmitting end 125 and the receiving end 126 of the distance detecting unit are respectively disposed on the left and right sides of the rf unit 111. Thus, the distance detection unit can detect the first distance between the transmitting end and the receiving end no matter how the radio frequency unit is bent.
Optionally, in an embodiment of the present application, the angle detection unit is configured to: the first distance, the second distance, and the third distance determine the bending angle.
Wherein, the second distance is: the distance between the transmitting end and the center of the radio frequency unit;
the third distance is: the distance between the receiving end and the center of the radio frequency unit.
It is understood that the second distance and the third distance may be determined after the transmitting terminal and the receiving terminal are respectively installed at both sides of the radio frequency unit, and thus, the second distance and the third distance may be detected in advance and stored in the storage unit of the electronic device.
In this way, the angle detection unit may determine the first bending angle based on the second distance, the third distance, and the first distance detected by the distance detection unit.
Illustratively, as shown in fig. 5, the distance between the transmitting end 125 and the center of the rf unit 111 is a (i.e., the second distance), the distance between the receiving end 126 and the center of the rf unit 111 is b (i.e., the third distance), the signal strength received by the receiving end is affected by the first distance (i.e., the distance between the transmitting end and the receiving end), and the distance detecting unit may determine the value of the first distance c according to the signal strength received by the receiving end 126. It will be appreciated that a and b are known amounts, and thus the angle detection unit may be based on: a. b, c, determining a first bending angle.
In fig. 5, a, b and c form a triangle, and an included angle between a side corresponding to a and a side corresponding to b is θ; the first bending angle may be θ or δ, where δ=180° - θ.
The θ' may be θ or δ, and the present application is not limited thereto.
It should be noted that the rf unit in the embodiment of the present application may be an rf unit, or may be an integrated circuit unit, such as a flexible driving integrated circuit (Integrated Circuit, IC) unit, where the rf unit is integrated with other components.
It should be noted that, if the radio frequency unit in the embodiment of the present application is a flexible integrated circuit unit, the center of the radio frequency unit is the center of the flexible integrated circuit unit, or the center of the radio frequency unit is the center of the flexible integrated circuit unit.
As shown in fig. 7, the radio frequency calibration method of the electronic device provided in the embodiment of the present application may be applied to any of the electronic devices in the foregoing embodiments. The method comprises the following steps: step 101 and step 102.
Step 101, a radio frequency calibration unit of the electronic device obtains a first bending angle of a radio frequency unit of the electronic device.
It is understood that the first bending angle of the rf unit may be the current bending angle of the rf unit.
In an exemplary embodiment, the radio frequency calibration unit may directly obtain the first bending angle of the radio frequency unit, or the CPU in the electronic device reads the first bending angle of the radio frequency unit from the storage unit, and then generates the radio frequency calibration unit from the read first bending angle, so that the radio frequency calibration unit obtains the first bending angle.
Step 102, the radio frequency calibration unit calibrates the radio frequency parameters of the radio frequency unit according to the first bending angle.
It can be understood that the radio frequency calibration unit can calibrate the radio frequency parameters of the radio frequency unit according to different first bending angles of the radio frequency unit, so that the influence of the impedance change of the radio frequency unit on the performance of the radio frequency unit due to different bending angles is avoided.
Optionally, in an embodiment of the present application, the radio frequency calibration unit includes an angle detection unit. Step 101 includes step 101a.
Step 101a, detecting a bending angle of the radio frequency unit by an angle detection unit to obtain a first bending angle.
The bending angle detected by the angle detecting unit may be stored in a storage unit of the electronic device, so that the radio frequency calibration unit may obtain the first bending angle through the storage unit.
Optionally, in the embodiment of the present application, the step 101a includes a step a and a step B.
And step A, the radio frequency calibration unit acquires a first radio frequency calibration parameter corresponding to the first bending angle according to a preset mapping table.
Step B, the radio frequency calibration unit calibrates the radio frequency parameters of the radio frequency unit based on the first radio frequency calibration parameters;
wherein, the preset mapping table comprises M mapping relations;
each mapping relation is as follows: and a mapping relation between a bending angle and a radio frequency calibration parameter, wherein M is a positive integer.
For example, the radio frequency calibration parameters corresponding to the radio frequency units under different bending angles can be calibrated in advance, and the radio frequency calibration parameters corresponding to the different bending angles are stored in the storage unit of the electronic device.
That is, the mapping relationship between a bending angle and a radio frequency calibration parameter refers to: one bending angle corresponds to one radio frequency calibration parameter.
Optionally, in an embodiment of the present application, the flexible portion of the electronic device includes a first flexible portion and a second flexible portion.
The radio frequency unit is arranged on any flexible part of the first flexible part and the second flexible part.
The angle detection unit and the radio frequency unit are arranged on the same flexible part, the angle detection unit comprises a distance detection unit, and the distance detection unit comprises a transmitting end and a receiving end; the transmitting end and the receiving end are respectively arranged at two sides of the radio frequency unit. The "angle detection unit" in step 101a detects the bending angle of the radio frequency unit, including step C.
Step C, the angle detection unit determines a bending angle based on the first distance, the second distance and the third distance;
wherein, the first distance is: a distance between the transmitting end and the receiving end;
the second distance is: the distance between the transmitting end and the center of the radio frequency unit;
the third distance is: the distance between the receiving end and the center of the radio frequency unit.
It will be appreciated that if the rf unit is the flexible integrated circuit unit, the center of the rf unit is the center of the flexible integrated circuit unit.
Optionally, in an embodiment of the present application, step 103 is included after step 101.
Step 103, comparing with the second bending angle, the radio frequency calibration unit calibrates the radio frequency parameters of the radio frequency unit according to the second bending angle under the condition that the first bending angle is not changed.
Wherein the second bending angle is the previous bending angle of the first bending angle.
It can be understood that if the first bending angle is the same as the second bending angle, it indicates that the bending condition of the radio frequency unit is not changed, and the radio frequency parameter of the radio frequency unit can be calibrated directly according to the second bending angle, that is, the calibration strategy of the radio frequency unit is not changed, and the calibration strategy corresponding to the second bending angle is directly started, so that the radio frequency unit can be calibrated quickly and accurately, and the memory and power loss of the electronic device is avoided.
One possible operation procedure of the present application, taken as an example of a telephone wristwatch with an electronic device, includes the following steps:
and S01, in the process of using the watch by a user, the current bending angle of the PA (namely the radio frequency unit) is detected by the telephone watch through the angle detection unit. For example, when the bending angle is 90 ° at this time, the output load of the PA is automatically switched to the E load (i.e., the load corresponding to 90 °) by the impedance tuning unit of the rf calibration unit, and the corresponding rf calibration parameter is invoked.
S02, monitoring the change of the bending angle of the PA in real time by the telephone watch, and when the bending angle is changed at a certain moment. For example, the bending angle is switched from 90 degrees to 0 degrees, and at the moment, the telephone watch switches the output load of the PA to the A load through the impedance tuning unit and invokes corresponding radio frequency calibration parameters.
According to the radio frequency calibration method of the electronic equipment, the radio frequency parameters of the radio frequency unit are calibrated according to the first bending angle by acquiring the first bending angle (namely the current bending angle) of the radio frequency unit of the electronic equipment, so that the radio frequency parameters of the radio frequency unit can be flexibly calibrated under different bending angles of the radio frequency unit, and the radio frequency performance of the radio frequency unit is ensured.
It should be noted that, the electronic device in the embodiment of the present application may include a mobile electronic device and a non-mobile electronic device. By way of example, the mobile electronic device may be a mobile terminal device, such as a cell phone, tablet, notebook, palm top, 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 non-mobile terminal device, such as a server, network attached storage (network attached storage, NAS), personal computer (personal computer, PC), etc., the embodiments of the present application are not limited in particular.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the application, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. An electronic device, comprising:
the flexible part is internally provided with a radio frequency unit which is connected with an antenna of the electronic equipment;
the radio frequency calibration unit is connected with the radio frequency unit and is used for calibrating radio frequency parameters of the radio frequency unit according to the first bending angle of the radio frequency unit.
2. The electronic device of claim 1, wherein the electronic device comprises a memory device,
the radio frequency calibration unit comprises an angle detection unit which is arranged on the flexible part;
the angle detection unit is used for detecting a first bending angle of the radio frequency unit.
3. The electronic device of claim 2, wherein the radio frequency calibration unit further comprises a processing unit and an impedance tuning unit; the processing unit is respectively connected with the angle detection unit and the impedance tuning unit; the impedance tuning unit is connected with the output end of the radio frequency unit;
the processing unit adjusts the radio frequency calibration parameters of the radio frequency unit through the impedance tuning unit based on the first bending angle detected by the angle detection unit, so that the radio frequency calibration unit calibrates the radio frequency parameters of the radio frequency unit according to the first bending angle of the radio frequency unit.
4. The electronic device of claim 3, wherein the electronic device comprises a plurality of electronic devices,
the impedance tuning unit comprises M radio frequency parameter adjusting channels;
wherein, different radio frequency parameter adjusting channels correspond to different radio frequency calibration parameters,
a radio frequency calibration parameter corresponds to a bending angle, and M is a positive integer.
5. The electronic device of claim 2, 3 or 4,
the flexible portion includes a first flexible portion and a second flexible portion;
the radio frequency unit is arranged on any one of the first flexible part and the second flexible part;
the angle detection unit and the radio frequency unit are arranged on the same flexible part, the angle detection unit comprises a distance detection unit, and the distance detection unit comprises a transmitting end and a receiving end;
the transmitting end and the receiving end are respectively arranged at two sides of the radio frequency unit;
the receiving end is used for receiving the signal transmitted by the transmitting end;
the distance detection unit is used for determining a first distance between the transmitting end and the receiving end based on signals received by the receiving end.
6. The electronic device of claim 5, wherein the electronic device comprises a memory device,
the angle detection unit is used for being based on: the first distance, the second distance and the third distance determine the first bending angle;
wherein, the second distance is: the distance between the transmitting end and the center of the radio frequency unit;
the third distance is: and the distance between the receiving end and the center of the radio frequency unit.
7. A radio frequency calibration method for an electronic device, applied to the electronic device according to any one of claims 1 to 6, the method comprising:
the radio frequency calibration unit of the electronic equipment acquires a first bending angle of the radio frequency unit of the electronic equipment;
the radio frequency calibration unit calibrates radio frequency parameters of the radio frequency unit according to the first bending angle.
8. The method of claim 7, wherein the radio frequency calibration unit comprises an angle detection unit;
the radio frequency calibration unit obtains a first bending angle of a radio frequency unit of the electronic equipment, and the radio frequency calibration unit comprises:
and detecting the bending angle of the radio frequency unit through the angle detection unit to obtain the first bending angle.
9. The method of claim 8, wherein the radio frequency calibration unit calibrates radio frequency parameters of the radio frequency unit according to the first bend angle, comprising:
the radio frequency calibration unit obtains a first radio frequency calibration parameter corresponding to the first bending angle according to a preset mapping table;
the radio frequency calibration unit calibrates radio frequency parameters of the radio frequency unit based on the first radio frequency calibration parameters;
wherein, the preset mapping table comprises M mapping relations;
each mapping relation is as follows: and a mapping relation between a bending angle and a radio frequency calibration parameter, wherein M is a positive integer.
Priority Applications (1)
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| US10355662B2 (en) * | 2016-12-06 | 2019-07-16 | Honeywell International Inc. | Impedance matching using tunable elements |
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| JP2008028535A (en) * | 2006-07-19 | 2008-02-07 | Denso Wave Inc | Non-contact type reader/writer |
| CN101729029A (en) * | 2008-10-30 | 2010-06-09 | 苹果公司 | Electronic devices with calibrated radio frequency communications circuitry |
| CN109314299A (en) * | 2016-04-29 | 2019-02-05 | 天工方案公司 | Tunable electromagnetic coupler and the module and device for using it |
| CN108475122A (en) * | 2016-11-30 | 2018-08-31 | 华为技术有限公司 | The method and terminal device of control terminal equipment |
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