CN113612717A - Frequency offset calibration method and device, electronic equipment and storage medium - Google Patents
Frequency offset calibration method and device, electronic equipment and storage medium Download PDFInfo
- Publication number
- CN113612717A CN113612717A CN202110921060.7A CN202110921060A CN113612717A CN 113612717 A CN113612717 A CN 113612717A CN 202110921060 A CN202110921060 A CN 202110921060A CN 113612717 A CN113612717 A CN 113612717A
- Authority
- CN
- China
- Prior art keywords
- frequency offset
- calibration value
- offset calibration
- communication module
- preset condition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 63
- 238000004891 communication Methods 0.000 claims abstract description 169
- 238000012545 processing Methods 0.000 claims description 8
- 238000013461 design Methods 0.000 abstract description 14
- 238000004519 manufacturing process Methods 0.000 description 13
- 230000006870 function Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- RVCKCEDKBVEEHL-UHFFFAOYSA-N 2,3,4,5,6-pentachlorobenzyl alcohol Chemical compound OCC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl RVCKCEDKBVEEHL-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2657—Carrier synchronisation
Abstract
The embodiment of the application discloses a frequency offset calibration method, a frequency offset calibration device, electronic equipment and a storage medium. The method comprises the following steps: acquiring initial parameters of a target communication module, wherein the initial parameters comprise a first frequency offset calibration value and a first frequency offset, the first frequency offset calibration value is a current frequency offset calibration value of the target communication module, and the first frequency offset is a frequency offset corresponding to the first frequency offset calibration value; if the first frequency offset does not meet the preset condition, adjusting the first frequency offset calibration value to obtain a second frequency offset calibration value; calibrating the first frequency offset based on the second frequency offset calibration value to obtain a second frequency offset corresponding to the second frequency offset calibration value; and if the second frequency offset meets the preset condition, taking the second frequency offset as the current frequency offset of the target communication module. And then, the frequency offset calibration value can be automatically adjusted according to the frequency offset until the adjusted frequency offset meets the design requirement, so that the wireless communication performance of the wireless communication module is improved.
Description
Technical Field
The present application belongs to the field of communications technologies, and in particular, to a frequency offset calibration method, apparatus, electronic device, and storage medium.
Background
The wireless communication module is usually manufactured by directly writing a default value of the frequency offset. But is usually affected by the manufacturing process or the manufacturing lot, and the written default value of the frequency offset is not within the design range, so that the wireless communication performance of the wireless communication module is reduced.
Disclosure of Invention
In view of the foregoing problems, the present application provides a method, an apparatus, an electronic device, and a storage medium for frequency offset calibration, so as to improve the foregoing problems.
In a first aspect, an embodiment of the present application provides a frequency offset calibration method, where the method includes: acquiring initial parameters of a target communication module, wherein the initial parameters comprise a first frequency offset calibration value and a first frequency offset, the first frequency offset calibration value is a current frequency offset calibration value of the target communication module, and the first frequency offset is a frequency offset corresponding to the first frequency offset calibration value; if the first frequency offset does not meet the preset condition, adjusting the first frequency offset calibration value to obtain a second frequency offset calibration value; calibrating the first frequency offset based on the second frequency offset calibration value to obtain a second frequency offset corresponding to the second frequency offset calibration value; and if the second frequency offset meets the preset condition, taking the second frequency offset as the current frequency offset of the target communication module.
In a second aspect, an embodiment of the present application provides a frequency offset calibration apparatus, where the apparatus includes: a parameter obtaining unit, configured to obtain initial parameters of a target communication module, where the initial parameters include a first frequency offset calibration value and a first frequency offset, the first frequency offset calibration value is a current frequency offset calibration value of the target communication module, and the first frequency offset is a frequency offset corresponding to the first frequency offset calibration value; the adjusting unit is used for adjusting the first frequency offset calibration value to obtain a second frequency offset calibration value if the first frequency offset does not meet the preset condition; a frequency offset obtaining unit, configured to calibrate the first frequency offset based on the second frequency offset calibration value, so as to obtain a second frequency offset corresponding to the second frequency offset calibration value; and the processing unit is used for taking the second frequency offset as the current frequency offset of the target communication module if the second frequency offset meets the preset condition.
In a third aspect, an embodiment of the present application provides an electronic device, including one or more processors and a memory; one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs configured to perform the methods described above.
In a fourth aspect, the present application provides a computer-readable storage medium, in which a program code is stored, wherein the program code performs the above-mentioned method when running.
The embodiment of the application provides a frequency offset calibration method, a frequency offset calibration device, electronic equipment and a storage medium. The method comprises the steps of firstly obtaining initial parameters of a target communication module, wherein the initial parameters comprise a first frequency deviation calibration value and a first frequency deviation, the first frequency deviation calibration value is the current frequency deviation calibration value of the target communication module, the first frequency deviation is the frequency deviation corresponding to the first frequency deviation calibration value, then if the first frequency deviation does not meet the preset condition, adjusting the first frequency deviation calibration value to obtain a second frequency deviation calibration value, calibrating the first frequency deviation based on the second frequency deviation calibration value to obtain a second frequency deviation corresponding to the second frequency deviation calibration value, and if the second frequency deviation meets the preset condition, taking the second frequency deviation as the current frequency deviation of the target communication module. By the method, the frequency offset calibration value can be automatically adjusted according to the frequency offset until the frequency offset corresponding to the adjusted frequency offset calibration value meets the design requirement, and the wireless communication performance of the wireless communication module is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flow chart illustrating a method for calibrating frequency offset according to an embodiment of the present application;
FIG. 2 is a flow chart illustrating a method for frequency offset calibration according to another embodiment of the present application;
fig. 3 is a flowchart illustrating establishing a preset correspondence relationship in a frequency offset calibration method according to yet another embodiment of the present application;
fig. 4 is a flowchart illustrating an initial parameter obtaining method in a frequency offset calibration method according to another embodiment of the present application;
fig. 5 is a block diagram illustrating a frequency offset calibration apparatus according to an embodiment of the present application;
fig. 6 is a block diagram illustrating a frequency offset calibration apparatus according to an embodiment of the present application;
FIG. 7 is a block diagram illustrating an electronic device in an embodiment of the present application for performing a frequency offset calibration method according to the embodiment of the present application;
fig. 8 illustrates a memory unit in an embodiment of the present application for storing or carrying program code for implementing a frequency offset calibration method according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
With the development of science and technology, the wireless communication module is almost the standard configuration of various mobile phones, tablet computers and other terminals. The requirement of users on the stability of wireless connection of the wireless communication module is higher and higher, which causes the problem that some users frequently feed back the frequent disconnection of the wireless connection of the wireless communication module. The factors affecting the wireless communication module are mainly: frequency offset, transmission power, reception sensitivity, and the like, and the factors affecting the communication stability are mainly frequency offset. The frequency offset refers to a difference between an actual communication carrier frequency and a theoretical communication carrier frequency, and when the difference exceeds a certain range, the wireless communication module will cause unstable communication or even impossible communication due to too large error rate because of too large frequency difference.
In the research on the related frequency offset calibration method, the inventor finds that, when the wireless communication module is produced, the frequency offset default value is usually selected to be directly written in. But is usually affected by the manufacturing process or the manufacturing lot, and the written default value of the frequency offset is not within the design range, so that the wireless communication performance of the communication module is reduced. For example, impedance matching is considered in designing the ZigBee communication module, a default frequency offset value is directly written in during production, and calibration is not performed, so that the problem that the wireless communication performance of the ZigBee module is reduced because the frequency offset of the ZigBee communication module is not within a design range due to different batches of PCBA boards in the ZigBee module or process differences easily occurs.
Therefore, in order to improve the above problem, the inventor of the present application has proposed a frequency offset calibration method, an apparatus, an electronic device, and a storage medium provided by the present application, which first obtains an initial parameter of a target communication module, where the initial parameter includes a first frequency offset calibration value and a first frequency offset, the first frequency offset calibration value is a current frequency offset calibration value of the target communication module, the first frequency offset is a frequency offset corresponding to the first frequency offset calibration value, then if the first frequency offset does not satisfy a preset condition, the first frequency offset calibration value is adjusted to obtain a second frequency offset calibration value, then the first frequency offset is calibrated based on the second frequency offset calibration value to obtain a second frequency offset corresponding to the second frequency offset calibration value, and if the second frequency offset satisfies the preset condition, the second frequency offset is taken as the current frequency offset of the target communication module, and the calibration value can be automatically adjusted according to the frequency offset, and improving the wireless communication performance of the wireless communication module until the frequency offset corresponding to the adjusted frequency offset calibration value meets the design requirement.
Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1, a frequency offset calibration method provided in an embodiment of the present application is applied to an electronic device, and the method includes:
step S110: obtaining initial parameters of a target communication module, wherein the initial parameters include a first frequency offset calibration value and a first frequency offset, the first frequency offset calibration value is a current frequency offset calibration value of the target communication module, and the first frequency offset is a frequency offset corresponding to the first frequency offset calibration value.
In this embodiment of the application, the target communication module may be a ZigBee module, a bluetooth module, or a WiFi module and other wireless communication modules that need to perform frequency offset calibration, which is not specifically limited herein. The first frequency deviation calibration value and the first frequency deviation are a default frequency deviation and a default frequency deviation calibration value which are written into the target communication module when the target communication module is produced.
Due to the influence of the production batch and the production process of the PCBA board in the target communication module, the frequency offset written into the target communication module during production may not meet the design requirements, and therefore, the frequency offset written into the target communication module during production needs to be calibrated.
In order to calibrate the frequency offset written into the target communication module during production, the initial parameter written into the target communication module needs to be obtained first, and then the frequency offset of the target communication module can be calibrated based on the obtained initial parameter of the target communication module.
As a mode, the target communication module may include a frequency offset calibration interface, and the electronic device establishes a communication connection with the target communication module, and then the electronic device may adjust the frequency offset of the target communication module through the frequency offset calibration interface. The frequency offset calibration interface may be a serial port of software, and the electronic device may send a frequency offset calibration command to the target communication module through the frequency offset calibration interface, and when the target communication module receives the frequency offset calibration command, return the default frequency offset and the default frequency offset calibration value stored in the storage area of the target communication module to the electronic device.
In the embodiment of the present application, the electronic device may be a mesometer, a frequency offset meter, or the like.
Step S120: and if the first frequency deviation does not meet the preset condition, adjusting the first frequency deviation calibration value to obtain a second frequency deviation calibration value.
In the embodiment of the present application, the preset condition may be a preset frequency offset range, and the frequency offset range is generally set to [ -500KHz, 500KHz ], and is not specifically limited herein. After the initial parameters of the target communication module are obtained by the method, the first frequency offset in the initial parameters can be compared with the minimum frequency offset and the maximum frequency offset corresponding to the frequency offset range included in the preset condition, whether the first frequency offset belongs to the frequency offset range included in the preset condition is judged, and whether the first frequency offset meets the preset condition is further determined.
Specifically, the first frequency offset in the initial parameters of the target communication module is respectively compared with the minimum frequency offset and the maximum frequency offset corresponding to the frequency offset range included in the preset condition, and if the first frequency offset is greater than or equal to the minimum frequency offset corresponding to the frequency offset range included in the preset condition and the first frequency offset is less than or equal to the maximum frequency offset corresponding to the frequency offset range included in the preset condition, it is determined that the first frequency offset belongs to the frequency offset range included in the preset condition, and it can be further determined that the first frequency offset meets the preset condition; if the first frequency offset is smaller than the minimum frequency offset corresponding to the frequency offset range included in the preset condition, or the first frequency offset is larger than the maximum frequency offset corresponding to the frequency offset range included in the preset condition, it is determined that the first frequency offset does not belong to the frequency offset range included in the preset condition, and it can be further determined that the first frequency offset does not satisfy the preset condition. Illustratively, the preset conditions include frequency deviation ranges of [ -500KHz, 500KHz ], a corresponding minimum frequency deviation of-500 KHz, and a corresponding maximum frequency deviation of 500 KHz. If the first frequency offset is 423KHz, it can be known that the first frequency offset is greater than-500 KHz, and the first frequency offset is less than 500KHz, it can be determined that the first frequency offset meets a preset condition; if the first frequency offset is 501KHz, it can be known that the first frequency offset is greater than 500KHz, and it can be determined that the first frequency offset does not satisfy the preset condition.
If the first frequency offset of the target communication module is determined to not meet the preset condition through the above manner, the first frequency offset calibration value of the target communication module is adjusted to obtain a frequency offset calibration value of which the corresponding frequency offset is closer to the frequency offset range included in the preset condition, that is, the second frequency offset calibration value, and the current frequency offset calibration value of the target communication module is updated to the second frequency offset calibration value.
When the first frequency offset calibration value in the target communication module is adjusted, the first frequency offset calibration value can be adjusted according to a preset rule. The preset rule in the embodiment of the present application may be a preset rule that can directly adjust the frequency offset calibration value, such as a preset functional relationship. And, the adjustment here means to increase or decrease the first frequency offset calibration value.
It should be noted that, in an embodiment, if the first frequency offset meets the preset condition, the first frequency offset is used as the current frequency offset of the target communication module.
Specifically, the first frequency offset is compared with a minimum frequency offset and a maximum frequency offset corresponding to a frequency offset range included in the preset condition, and whether the first frequency offset meets the preset condition is judged. If the comparison shows that the first frequency offset meets the preset condition, the calibration values of the first frequency offset and the first frequency offset calibration value are not adjusted, the first frequency offset is directly used as the current frequency offset of the target communication module, and the first frequency offset calibration value is used as the frequency offset calibration value of the next target communication module, so that the aim of quick calibration is fulfilled.
Step S130: and calibrating the first frequency offset based on the second frequency offset calibration value to obtain a second frequency offset corresponding to the second frequency offset calibration value.
As a mode, after the frequency offset calibration value of the target communication module is updated to the second frequency offset calibration value, the first frequency offset is calibrated through the second frequency offset calibration value, so as to obtain a calibrated frequency offset, that is, the second frequency offset. And re-reading the frequency offset corresponding to the frequency offset calibration value, namely obtaining a second frequency offset corresponding to a second frequency offset calibration value through the frequency offset calibration interface.
Step S140: and if the second frequency offset meets the preset condition, taking the second frequency offset as the current frequency offset of the target communication module.
Similarly, by the foregoing method, the second frequency offset is respectively compared with the minimum frequency offset and the maximum frequency offset corresponding to the frequency offset range included in the preset condition. If the second frequency deviation is greater than or equal to the minimum frequency deviation and less than or equal to the maximum frequency deviation, determining that the second frequency deviation meets the preset condition, taking the second frequency deviation as the current frequency deviation of the target communication module, and taking the second frequency deviation calibration value as the frequency deviation calibration value of the next target communication module, thereby achieving the purpose of quick calibration.
The frequency offset calibration method includes the steps of firstly obtaining initial parameters of a target communication module, wherein the initial parameters include a first frequency offset calibration value and a first frequency offset, the first frequency offset calibration value is the current frequency offset calibration value of the target communication module, the first frequency offset is the frequency offset corresponding to the first frequency offset calibration value, then if the first frequency offset does not meet a preset condition, adjusting the first frequency offset calibration value to obtain a second frequency offset calibration value, calibrating the first frequency offset based on the second frequency offset calibration value to obtain a second frequency offset corresponding to the second frequency offset calibration value, and if the second frequency offset meets the preset condition, taking the second frequency offset as the current frequency offset of the target communication module. By the method, the frequency offset calibration value can be automatically adjusted according to the frequency offset until the frequency offset corresponding to the adjusted frequency offset calibration value meets the design requirement, and the wireless communication performance of the wireless communication module is improved.
Referring to fig. 2, a frequency offset calibration method provided in an embodiment of the present application is applied to an electronic device, and the method includes:
step S210: obtaining initial parameters of a target communication module, wherein the initial parameters include a first frequency offset calibration value and a first frequency offset, the first frequency offset calibration value is a current frequency offset calibration value of the target communication module, and the first frequency offset is a frequency offset corresponding to the first frequency offset calibration value.
In the embodiment of the present application, the step S210 may specifically refer to the detailed explanation in the above embodiments, and therefore is not described herein.
Step S220: if the first frequency offset does not meet the preset condition, acquiring the step of the first frequency offset calibration value corresponding to the step of the first frequency offset based on a preset corresponding relationship, wherein the preset corresponding relationship is the corresponding relationship between the step of the frequency offset and the step of the frequency offset calibration value.
In this embodiment of the present application, the preset correspondence is a correspondence between a step of the frequency offset and a step of the frequency offset calibration value obtained by analyzing the multiple frequency offset data and the multiple frequency offset calibration value data in the test stage.
Step (Stepping) is an important parameter of the CPU, also called hierarchical identification product data conversion specification, and the step number is used to identify a series of design or production manufacturing edition data of the CPU, and the step edition will change with the improvement of the production process, the solution of the BUG or the increase of the characteristic of the series of CPU, that is, the step number is used to identify the different revisions of the CPU.
As a way, in the testing stage, for each step k of the frequency offset calibration value, the frequency offset step p, and further, a preset corresponding relationship between the step of the frequency offset calibration value and the step of the frequency offset may be established. In the preset corresponding relationship, the frequency offset step and the frequency offset calibration value step are in one-to-one correspondence, that is, one frequency offset step corresponds to one frequency offset calibration value step. In the embodiment of the present application, the predetermined correspondence relationship is: and p is 16kKHz, wherein p is the step of the frequency offset, and k is the step of the frequency offset calibration value.
After a preset corresponding relationship between the step of the frequency offset calibration value and the step of the frequency offset is established, the preset corresponding relationship can be stored, and when the step of any parameter needs to be calculated, the step corresponding to the parameter can be calculated according to the preset corresponding relationship. Optionally, the preset corresponding relationship may be stored in the electronic device, may also be stored in a storage area of the target communication module, or may also be stored in the cloud server. When the preset correspondence is stored in the cloud server, the identifier of the target communication module needs to be associated with the preset correspondence, specifically, a file may be separately established for storing the preset correspondence of the target communication module, and the name of the file may be named by the identifier of the target communication module. And when the preset corresponding relation is obtained, the corresponding file can be found from the cloud server according to the identification of the target communication module, so that the preset corresponding relation can be found. Wherein the identification is used to identify a unique communication module.
Specifically, the first frequency offset of the target communication module is fn, and the first frequency offset calibration value is value. When the first frequency deviation fn of the target communication module is determined not to meet the preset condition, calculating the step p of the first frequency deviation fn, and acquiring the corresponding relation between the step of the prestored frequency deviation and the step of the frequency deviation calibration value: the step of the frequency offset is 16 × the step (KHz) of the frequency offset calibration value, that is, p is 16 KHz, and then the step k of the corresponding first frequency offset calibration value is calculated according to the step of the first frequency offset and the preset corresponding relationship.
Step S230: and adjusting the first frequency offset calibration value based on the stepping of the first frequency offset calibration value to obtain a second frequency offset calibration value.
After the step k of the first frequency offset calibration value is calculated by the method, the first frequency offset calibration value is adjusted by the step k of the first frequency offset calibration value, the first frequency offset calibration value is updated to value + k, and the value + k is used as a new frequency offset calibration value of the target communication module, namely, the second frequency offset calibration value. The value of step k of the first frequency offset calibration value may be a positive value or a negative value, and is not specifically limited herein.
Step S240: and if the second frequency offset does not meet the preset condition, acquiring the step of the second frequency offset calibration value corresponding to the step of the second frequency offset based on the preset corresponding relation.
In the embodiment of the present application, the second frequency offset of the target communication module corresponding to the frequency offset calibration value updated to the second frequency offset calibration value is read again, after the second frequency offset of the target communication module is obtained, the second frequency offset is compared with the minimum frequency offset and the maximum frequency offset corresponding to the frequency offset range included in the preset condition, respectively, if it is determined that the second frequency offset does not satisfy the preset condition, then based on the preset corresponding relationship p being 16 khz, the step of the second frequency offset corresponding to the step of the second frequency offset is calculated.
Step S250: and adjusting the second frequency offset calibration value based on the step corresponding to the second frequency offset calibration value until the second frequency offset corresponding to the adjusted second frequency offset calibration value meets the preset condition.
As a mode, the second frequency offset calibration value is adjusted according to the step corresponding to the calculated second frequency offset calibration value to obtain an adjusted second frequency offset calibration value, the frequency offset corresponding to the adjusted second frequency offset calibration value is read again to determine whether the frequency offset meets the preset condition, if the preset condition is not met, the second frequency offset calibration value is continuously adjusted by the method, and the calibration is stopped until the frequency offset corresponding to the adjusted second frequency offset calibration value meets the preset condition.
Step S260: and taking the second frequency offset meeting the preset condition as the current frequency offset of the target communication module.
In the embodiment of the present application, the step S260 may specifically refer to the detailed explanation in the above embodiments, and therefore is not described herein.
The application provides a frequency offset calibration method, which includes firstly obtaining initial parameters of a target communication module, wherein the initial parameters include a first frequency offset calibration value and a first frequency offset, the first frequency offset calibration value is a current frequency offset calibration value of the target communication module, the first frequency offset is a frequency offset corresponding to the first frequency offset calibration value, if the first frequency offset does not satisfy a preset condition, obtaining a step of the first frequency offset calibration value corresponding to the step of the first frequency offset based on a preset corresponding relationship, the corresponding relationship is a corresponding relationship between the step of the frequency offset and the step of the frequency offset calibration value, then adjusting the first frequency offset calibration value based on the step of the first frequency offset calibration value to obtain a second frequency offset calibration value, if the second frequency offset does not satisfy the preset condition, obtaining a step of the second frequency offset corresponding to the step of the second frequency offset based on the preset corresponding relationship, and adjusting the second frequency offset calibration value based on the step corresponding to the second frequency offset calibration value until the second frequency offset corresponding to the adjusted second frequency offset calibration value meets the preset condition, and taking the second frequency offset meeting the preset condition as the current frequency offset of the target communication module. By the method, the frequency offset calibration value can be automatically adjusted according to the frequency offset until the frequency offset corresponding to the adjusted frequency offset calibration value meets the design requirement, and the wireless communication performance of the wireless communication module is improved.
The above embodiment refers to the preset corresponding relationship, and how the preset corresponding relationship is established is described below through an embodiment, specifically, referring to fig. 3, before the step S210, the method further includes:
step S310: and acquiring a first reference frequency offset calibration value and a first reference frequency offset corresponding to the current calibration of the reference communication module, wherein the first reference frequency offset calibration value is the current frequency offset calibration value of the reference communication module, and the first reference frequency offset is the frequency offset corresponding to the first reference frequency offset calibration value.
In the embodiment of the application, when the secondary calibration is the primary calibration; the reference communication module is a communication module used for establishing a preset corresponding relation in a test stage; the first reference frequency offset calibration value is a default frequency offset calibration value corresponding to the reference communication module during first calibration, the first reference frequency offset is a frequency offset corresponding to the reference communication module during first calibration, and the default frequency offset calibration value is a frequency offset calibration value written in the reference communication module during design.
Specifically, a frequency offset calibration value and a frequency offset corresponding to the reference communication module during the first calibration are obtained. For example, take 1 slice of reference communication module, first read the frequency offset calibration value1 and frequency offset f1 written by the reference communication module at design time, and record them.
Step S320: if the first reference frequency offset does not meet the preset condition, adjusting the first reference frequency offset calibration value based on the first reference frequency offset to obtain a second reference frequency offset calibration value corresponding to the current calibration of the reference communication module.
As a mode, the first reference frequency offset is compared with a minimum frequency offset and a maximum frequency offset corresponding to a frequency offset range included in a preset condition, and whether the first reference frequency offset meets the preset condition is determined. And if the comparison result shows that the first reference frequency offset does not meet the preset condition, performing first adjustment on the first reference frequency offset calibration value according to the first reference frequency offset to obtain a frequency offset calibration value corresponding to the reference communication module after the first adjustment.
For example, the frequency offset f1 is compared with the minimum frequency offset and the maximum frequency offset corresponding to the frequency offset range included in the preset condition, and whether the frequency offset f1 meets the preset condition is determined. And if the comparison shows that the frequency deviation f1 does not meet the preset condition, performing first adjustment on the frequency deviation calibration value1 based on the frequency deviation f1 to obtain a frequency deviation calibration value f11 after the first adjustment.
The step of adjusting the first reference frequency offset calibration value based on the first reference frequency offset to obtain a second reference frequency offset calibration value corresponding to the current calibration of the reference communication module may include: if the first reference frequency offset is positive, reducing the step of the first reference frequency offset calibration value to obtain a second reference frequency offset calibration value corresponding to the current calibration; and if the first reference frequency offset is negative, increasing the step of the first reference frequency offset calibration value to obtain a second reference frequency offset calibration value corresponding to the current calibration.
Specifically, the first reference frequency offset may be adjusted according to the positive and negative of the first reference frequency offset. If the first reference frequency offset is a positive value, the first reference frequency offset calibration value is subjected to reduction operation according to a specified value, and if the first reference frequency offset is a negative value, the first reference frequency offset calibration value is subjected to increase operation according to the specified value, wherein the specified value can be set according to actual requirements. Illustratively, if the specified value is set to 1, then if frequency offset f1 is positive, frequency offset calibration value1 is set to value 1-1; if frequency offset f1 is negative, frequency offset calibration value1 is set to value1+ 1. And adjusting the value1 by the method to obtain an adjusted second reference frequency offset calibration value. And then, reading the frequency offset f11 corresponding to the adjusted second reference frequency offset calibration value, and recording.
Step S330: and calibrating the first reference frequency offset based on the second reference frequency offset calibration value to obtain a second reference frequency offset corresponding to the second reference frequency offset calibration value.
In the embodiment of the application, the first reference frequency offset is adjusted based on the adjusted second reference frequency offset calibration value, and the second reference frequency offset corresponding to the adjusted second reference frequency offset calibration value is directly read by the intermediate measuring instrument or the frequency offset meter.
Step S340: and if the second reference frequency offset does not meet the preset condition, entering the next calibration, and taking the second reference frequency offset calibration value and the second reference frequency offset as a reference frequency offset calibration value and a reference frequency offset corresponding to the next calibration of the reference communication module until the reference frequency offset of the reference communication module meets the preset condition.
In the embodiment of the present application, if the second reference frequency offset does not satisfy the preset condition, a second calibration is performed, the second reference frequency offset calibration value and the second reference frequency offset obtained after the first calibration are used as initial parameters corresponding to the reference communication module during the second calibration, if the frequency offset after the second calibration still does not satisfy the preset condition, the calibration is continued until the adjusted reference frequency offset satisfies the preset condition, and the calibration is stopped, and the reference frequency offset calibration value and the reference frequency offset obtained after each calibration before and after the calibration is stopped are recorded.
Step S350: and acquiring a step corresponding to the reference frequency offset calibration value corresponding to each calibration of the reference communication module and a step corresponding to the reference frequency offset corresponding to each calibration of the reference communication module, so as to obtain a plurality of steps corresponding to the reference frequency offset calibration value and a plurality of steps corresponding to the reference frequency offset.
In the embodiment of the application, based on the reference frequency offset calibration value and the reference product frequency offset obtained after each calibration, the step corresponding to the reference frequency offset calibration value after each calibration and the step corresponding to the reference frequency offset can be calculated. When calculating the step corresponding to the reference frequency offset calibration value each time, the calibrated reference frequency offset calibration value and the reference frequency offset calibration value before calibration can be subtracted to obtain the step corresponding to the reference frequency offset calibration value; similarly, the calibrated reference frequency offset calibration value and the calibrated reference frequency offset calibration value before calibration may be subtracted to obtain a step corresponding to the reference frequency offset.
For example, the reference frequency offset calibration value and the reference frequency offset obtained after each calibration can be shown in the following table:
the data in the above table show that after each calibration, the reference frequency offset calibration value is stepped and the reference frequency offset is stepped. And further obtaining the relation between the step of the reference frequency offset calibration value and the step of the reference frequency offset, wherein the reference frequency offset changes between 13k and 18k and the middle value is 16k when each step of the reference frequency offset calibration value is 1, and k represents the step of the frequency offset calibration value.
Step S360: and establishing the preset corresponding relation according to the plurality of steps corresponding to the reference frequency offset calibration value and the plurality of steps corresponding to the reference frequency offset, wherein the plurality of steps corresponding to the reference frequency offset calibration value correspond to the plurality of steps corresponding to the reference frequency offset one by one.
In the embodiment of the present application, a preset correspondence p is established as 16 khz according to a plurality of steps corresponding to the reference frequency offset calibration value and a plurality of steps corresponding to the reference frequency offset.
By the method, the corresponding relation between the step of the frequency deviation and the step of the frequency deviation calibration value is established, so that the corresponding relation can be searched according to the frequency deviation, the step of the frequency deviation calibration value is determined, the frequency deviation calibration value is adjusted based on the step of the frequency deviation calibration value until the frequency deviation corresponding to the adjusted frequency deviation calibration value meets the design requirement, and the wireless communication performance of the communication module is improved.
In the above embodiment, initial parameters are mentioned, and how the initial parameters are obtained is described below by an embodiment, specifically, referring to fig. 4, a frequency offset calibration method provided in an embodiment of the present application is applied to an electronic device, and the method includes:
step S410: and obtaining target frequency offset calibration values corresponding to the plurality of reference communication modules respectively to obtain a plurality of target frequency offset calibration values, wherein the target frequency offset calibration values are frequency offset calibration values which enable the target frequency offset of the reference communication modules corresponding to the target frequency offset calibration values to meet the preset conditions.
In the embodiment of the present application, in order to ensure the accuracy of the frequency offset and the frequency offset calibration value written into the target communication module, target frequency offset calibration values corresponding to a plurality of reference communication modules may be obtained. And then calculating to obtain a target frequency offset calibration value with higher accuracy based on the target frequency offset calibration values corresponding to the multiple reference communication modules respectively.
Step S420: and obtaining the average frequency deviation calibration value of the target frequency deviation calibration values.
And after the target frequency offset calibration values corresponding to the multiple reference modules are obtained, calculating the average values corresponding to the multiple target frequency offset calibration values to obtain the average frequency offset calibration value. Illustratively, the frequency offset calibration values of the reference communication module for obtaining 10 frequency offsets satisfying the preset condition are value0, value1, value2, value3, value4, value5, value6, value7, value8 and value 9. Further, the average values of value0, value1, value2, value3, value4, value5, value6, value7, value8 and value9 are calculated to obtain the average frequency offset calibration value.
Step S430: and taking the average frequency deviation calibration value and the frequency deviation corresponding to the average frequency deviation calibration value as initial parameters of a target communication module.
After the average frequency deviation calibration value is obtained through calculation, the frequency deviation corresponding to the average frequency deviation calibration value is obtained through a middle measuring instrument or a frequency deviation meter, and the average frequency deviation calibration value and the frequency deviation corresponding to the average frequency deviation calibration value are used as initial parameters of the target communication module and stored. And the frequency deviation corresponding to the average frequency deviation calibration value is used as the first frequency deviation calibration value in the initial parameters of the target communication module.
Therefore, in the embodiment of the application, the average frequency offset calibration value is used as the first frequency offset calibration value in the initial parameters of the target communication module, and the frequency offset corresponding to the average frequency offset calibration value is used as the first frequency offset in the initial parameters of the target communication module, so that on one hand, the probability that the frequency offset in the initial parameters meets the preset conditions can be improved, and on the other hand, the probability that the frequency offset after the frequency offset is calibrated meets the preset conditions can be improved when the frequency offset in the initial parameters does not meet the preset conditions, so that the frequency offset calibration times can be reduced on the whole, and the frequency offset calibration efficiency can be improved.
Referring to fig. 5, a frequency offset calibration apparatus 500 according to an embodiment of the present application is provided, where the apparatus 500 includes:
a parameter obtaining unit 510, configured to obtain initial parameters of a target communication module, where the initial parameters include a first frequency offset calibration value and a first frequency offset, the first frequency offset calibration value is a current frequency offset calibration value of the target communication module, and the first frequency offset is a frequency offset corresponding to the first frequency offset calibration value.
As a manner, the parameter obtaining unit 510 is configured to obtain target frequency offset calibration values corresponding to multiple reference communication modules, so as to obtain multiple target frequency offset calibration values, where the target frequency offset calibration values are frequency offset calibration values that enable the target frequency offsets of the reference communication modules corresponding to the target frequency offset calibration values to meet the preset condition; obtaining an average frequency deviation calibration value of the plurality of target frequency deviation calibration values; and taking the average frequency deviation calibration value and the frequency deviation corresponding to the average frequency deviation calibration value as initial parameters of a target communication module.
An adjusting unit 520, configured to adjust the first frequency offset calibration value if the first frequency offset does not meet a preset condition, so as to obtain a second frequency offset calibration value.
As a manner, the adjusting unit 520 is further configured to, if the first frequency offset does not satisfy the preset condition, obtain, based on a preset corresponding relationship, a step of the first frequency offset calibration value corresponding to the step of the first frequency offset, where the preset corresponding relationship is a corresponding relationship between the step of the frequency offset and the step of the frequency offset calibration value; and adjusting the first frequency offset calibration value based on the stepping of the first frequency offset calibration value to obtain a second frequency offset calibration value.
As another mode, the adjusting unit 520 is further configured to, if the second frequency offset does not satisfy the preset condition, obtain, based on the preset corresponding relationship, a step of the second frequency offset calibration value corresponding to the step of the second frequency offset; and adjusting the second frequency offset calibration value based on the step corresponding to the second frequency offset calibration value until the second frequency offset corresponding to the adjusted second frequency offset calibration value meets the preset condition.
A frequency offset obtaining unit 530, configured to calibrate the first frequency offset based on the second frequency offset calibration value, so as to obtain a second frequency offset corresponding to the second frequency offset calibration value.
A processing unit 540, configured to take the second frequency offset as the current frequency offset of the target communication module if the second frequency offset meets the preset condition.
As a manner, the processing unit 540 is configured to use the first frequency offset as a current frequency offset of the target communication module if the first frequency offset meets the preset condition.
Referring to fig. 6, the apparatus 500 further includes:
a relation establishing unit 550, configured to obtain a first reference frequency offset calibration value and a first reference frequency offset corresponding to the current calibration of the reference communication module, where the first reference frequency offset calibration value is a current frequency offset calibration value of the reference communication module, and the first reference frequency offset is a frequency offset corresponding to the first reference frequency offset calibration value; if the first reference frequency offset does not meet the preset condition, adjusting the first reference frequency offset calibration value based on the first reference frequency offset to obtain a second reference frequency offset calibration value corresponding to the current calibration of the reference communication module; calibrating the first reference frequency offset based on the second reference frequency offset calibration value to obtain a second reference frequency offset corresponding to the second reference frequency offset calibration value; if the second reference frequency offset does not meet the preset condition, entering the next calibration, and taking the second reference frequency offset calibration value and the second reference frequency offset as a reference frequency offset calibration value and a reference frequency offset corresponding to the next calibration of the reference communication module until the reference frequency offset of the reference communication module meets the preset condition; acquiring steps corresponding to the reference frequency offset calibration value corresponding to each calibration of the reference communication module and steps corresponding to the reference frequency offset corresponding to each calibration of the reference communication module so as to obtain a plurality of steps corresponding to the reference frequency offset calibration value and a plurality of steps corresponding to the reference frequency offset; and establishing the preset corresponding relation according to the plurality of steps corresponding to the reference frequency offset calibration value and the plurality of steps corresponding to the reference frequency offset, wherein the plurality of steps corresponding to the reference frequency offset calibration value correspond to the plurality of steps corresponding to the reference frequency offset one by one.
As a manner, the relationship establishing unit 550 is further configured to reduce the step of the first reference frequency offset calibration value if the first reference frequency offset is positive, so as to obtain a second reference frequency offset calibration value corresponding to the current calibration; and if the first reference frequency offset is negative, increasing the step of the first reference frequency offset calibration value to obtain a second reference frequency offset calibration value corresponding to the current calibration.
It should be noted that the device embodiment and the method embodiment in the present application correspond to each other, and specific principles in the device embodiment may refer to the contents in the method embodiment, which is not described herein again.
An electronic device provided by the present application will be described with reference to fig. 7.
Referring to fig. 7, based on the above-mentioned frequency offset calibration method and apparatus, another electronic device 600 capable of performing the frequency offset calibration method according to the embodiment of the present application is further provided. The electronic device 600 includes one or more processors 602 (only one shown), memory 604, and a network module 606 coupled to each other. The memory 604 stores programs that can execute the content of the foregoing embodiments, and the processor 602 can execute the programs stored in the memory 604.
The Memory 604 may include a Random Access Memory (RAM) or a Read-Only Memory (ROM). The memory 604 may be used to store instructions, programs, code sets, or instruction sets. The memory 604 may include a stored program area and a stored data area, wherein the stored program area may store instructions for implementing an operating system, instructions for implementing at least one function (such as a touch function, a sound playing function, an image playing function, etc.), instructions for implementing various method embodiments described below, and the like. The storage data area may also store data created by the terminal 600 in use, such as a phonebook, audio-video data, chat log data, and the like.
The network module 606 is configured to receive and transmit electromagnetic waves, and implement interconversion between the electromagnetic waves and electrical signals, so as to communicate with a communication network or other devices, for example, an audio playing device. The network module 606 may include various existing circuit elements for performing these functions, such as an antenna, a radio frequency transceiver, a digital signal processor, an encryption/decryption chip, a Subscriber Identity Module (SIM) card, memory, and so forth. The network module 606 may communicate with various networks such as the internet, an intranet, a wireless network, or with other devices via a wireless network. The wireless network may comprise a cellular telephone network, a wireless local area network, or a metropolitan area network. For example, the network module 606 may perform information interaction with a base station.
Referring to fig. 8, a block diagram of a computer-readable storage medium according to an embodiment of the present application is shown. The computer-readable storage medium 700 has stored therein program code that can be called by a processor to execute the methods described in the above-described method embodiments.
The computer-readable storage medium 700 may be an electronic memory such as a flash memory, an EEPROM (electrically erasable programmable read only memory), an EPROM, a hard disk, or a ROM. Optionally, the computer-readable storage medium 700 includes a non-volatile computer-readable storage medium. The computer readable storage medium 700 has storage space for program code 710 to perform any of the method steps of the method described above. The program code can be read from or written to one or more computer program products. The program code 710 may be compressed, for example, in a suitable form.
According to the frequency offset calibration method, the frequency offset calibration device, the electronic device and the storage medium, initial parameters of a target communication module are firstly obtained, wherein the initial parameters comprise a first frequency offset calibration value and a first frequency offset, the first frequency offset calibration value is a current frequency offset calibration value of the target communication module, the first frequency offset is a frequency offset corresponding to the first frequency offset calibration value, if the first frequency offset does not meet a preset condition, the first frequency offset calibration value is adjusted to obtain a second frequency offset calibration value, the first frequency offset is calibrated based on the second frequency offset calibration value to obtain a second frequency offset corresponding to the second frequency offset calibration value, and if the second frequency offset meets the preset condition, the second frequency offset is used as the current frequency offset of the target communication module. By the method, the frequency offset calibration value can be automatically adjusted according to the frequency offset until the frequency offset corresponding to the adjusted frequency offset calibration value meets the design requirement, and the wireless communication performance of the wireless communication module is improved.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A method of frequency offset calibration, the method comprising:
acquiring initial parameters of a target communication module, wherein the initial parameters comprise a first frequency offset calibration value and a first frequency offset, the first frequency offset calibration value is a current frequency offset calibration value of the target communication module, and the first frequency offset is a frequency offset corresponding to the first frequency offset calibration value;
if the first frequency offset does not meet the preset condition, adjusting the first frequency offset calibration value to obtain a second frequency offset calibration value;
calibrating the first frequency offset based on the second frequency offset calibration value to obtain a second frequency offset corresponding to the second frequency offset calibration value;
and if the second frequency offset meets the preset condition, taking the second frequency offset as the current frequency offset of the target communication module.
2. The frequency offset calibration method of claim 1, wherein if the first frequency offset does not satisfy a preset condition, adjusting the first frequency offset calibration value to obtain a second frequency offset calibration value, comprising:
if the first frequency offset does not meet the preset condition, acquiring the step of the first frequency offset calibration value corresponding to the step of the first frequency offset based on a preset corresponding relation, wherein the preset corresponding relation is the corresponding relation between the step of the frequency offset and the step of the frequency offset calibration value;
and adjusting the first frequency offset calibration value based on the stepping of the first frequency offset calibration value to obtain a second frequency offset calibration value.
3. The frequency offset calibration method of claim 2, further comprising:
if the second frequency offset does not meet the preset condition, acquiring a step of the second frequency offset calibration value corresponding to the step of the second frequency offset based on the preset corresponding relation;
and adjusting the second frequency offset calibration value based on the step corresponding to the second frequency offset calibration value until the second frequency offset corresponding to the adjusted second frequency offset calibration value meets the preset condition.
4. The frequency offset calibration method according to claim 2, wherein, if the first frequency offset does not satisfy the predetermined condition, based on a predetermined correspondence, before the step of the first frequency offset calibration value corresponding to the step of the first frequency offset, further comprising:
obtaining a first reference frequency offset calibration value and a first reference frequency offset corresponding to the current calibration of the reference communication module, wherein the first reference frequency offset calibration value is the current frequency offset calibration value of the reference communication module, and the first reference frequency offset is the frequency offset corresponding to the first reference frequency offset calibration value;
if the first reference frequency offset does not meet the preset condition, adjusting the first reference frequency offset calibration value based on the first reference frequency offset to obtain a second reference frequency offset calibration value corresponding to the current calibration of the reference communication module;
calibrating the first reference frequency offset based on the second reference frequency offset calibration value to obtain a second reference frequency offset corresponding to the second reference frequency offset calibration value;
if the second reference frequency offset does not meet the preset condition, entering the next calibration, and taking the second reference frequency offset calibration value and the second reference frequency offset as a reference frequency offset calibration value and a reference frequency offset corresponding to the next calibration of the reference communication module until the reference frequency offset of the reference communication module meets the preset condition;
acquiring steps corresponding to the reference frequency offset calibration value corresponding to each calibration of the reference communication module and steps corresponding to the reference frequency offset corresponding to each calibration of the reference communication module so as to obtain a plurality of steps corresponding to the reference frequency offset calibration value and a plurality of steps corresponding to the reference frequency offset;
and establishing the preset corresponding relation according to the plurality of steps corresponding to the reference frequency offset calibration value and the plurality of steps corresponding to the reference frequency offset, wherein the plurality of steps corresponding to the reference frequency offset calibration value correspond to the plurality of steps corresponding to the reference frequency offset one by one.
5. The frequency offset calibration method of claim 4, wherein the adjusting the first reference frequency offset calibration value based on the first reference frequency offset to obtain a second reference frequency offset calibration value corresponding to the current calibration comprises:
if the first reference frequency offset is positive, reducing the step of the first reference frequency offset calibration value to obtain a second reference frequency offset calibration value corresponding to the current calibration;
and if the first reference frequency offset is negative, increasing the step of the first reference frequency offset calibration value to obtain a second reference frequency offset calibration value corresponding to the current calibration.
6. The frequency offset calibration method of claim 1, wherein said obtaining initial parameters of a target communication module comprises:
obtaining target frequency offset calibration values corresponding to a plurality of reference communication modules respectively to obtain a plurality of target frequency offset calibration values, wherein the target frequency offset calibration values are frequency offset calibration values which enable the target frequency offsets of the reference communication modules corresponding to the target frequency offset calibration values to meet the preset conditions;
obtaining an average frequency deviation calibration value of the plurality of target frequency deviation calibration values;
and taking the average frequency deviation calibration value and the frequency deviation corresponding to the average frequency deviation calibration value as initial parameters of a target communication module.
7. The frequency offset calibration method of any of claims 1-6, further comprising:
and if the first frequency offset meets the preset condition, taking the first frequency offset as the current frequency offset of the target communication module.
8. An apparatus for frequency offset calibration, the apparatus comprising:
a parameter obtaining unit, configured to obtain initial parameters of a target communication module, where the initial parameters include a first frequency offset calibration value and a first frequency offset, the first frequency offset calibration value is a current frequency offset calibration value of the target communication module, and the first frequency offset is a frequency offset corresponding to the first frequency offset calibration value;
the adjusting unit is used for adjusting the first frequency offset calibration value to obtain a second frequency offset calibration value if the first frequency offset does not meet the preset condition;
a frequency offset obtaining unit, configured to calibrate the first frequency offset based on the second frequency offset calibration value, so as to obtain a second frequency offset corresponding to the second frequency offset calibration value;
and the processing unit is used for taking the second frequency offset as the current frequency offset of the target communication module if the second frequency offset meets the preset condition.
9. An electronic device comprising one or more processors and memory; one or more programs stored in the memory and configured to be executed by the one or more processors to perform the method of any of claims 1-7.
10. A computer-readable storage medium, having program code stored therein, wherein the program code when executed by a processor performs the method of any of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110921060.7A CN113612717A (en) | 2021-08-11 | 2021-08-11 | Frequency offset calibration method and device, electronic equipment and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110921060.7A CN113612717A (en) | 2021-08-11 | 2021-08-11 | Frequency offset calibration method and device, electronic equipment and storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113612717A true CN113612717A (en) | 2021-11-05 |
Family
ID=78308284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110921060.7A Pending CN113612717A (en) | 2021-08-11 | 2021-08-11 | Frequency offset calibration method and device, electronic equipment and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113612717A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115913441A (en) * | 2023-01-09 | 2023-04-04 | 北京智芯微电子科技有限公司 | Multimode communication module clock frequency offset joint estimation method and initial frequency offset calibration method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150155954A1 (en) * | 2013-11-29 | 2015-06-04 | Spreadtrum Communications (Shanghai) Co., Ltd. | Method and device for calibrating frequency synthesizer in communication terminal |
| CN108736984A (en) * | 2018-08-04 | 2018-11-02 | 深圳思必锐电子技术有限公司 | The frequency offset correction method and device of radio-frequency module |
| CN110401499A (en) * | 2019-08-29 | 2019-11-01 | 杭州博联智能科技股份有限公司 | For Fast Frequency Offset calibration method, device, equipment and the medium of radio-frequency module |
| CN111781987A (en) * | 2020-07-08 | 2020-10-16 | Oppo广东移动通信有限公司 | Real-time clock calibration method and related device |
| CN112671494A (en) * | 2020-12-21 | 2021-04-16 | 广州粒子微电子有限公司 | Method and device for automatically adjusting clock frequency offset |
-
2021
- 2021-08-11 CN CN202110921060.7A patent/CN113612717A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150155954A1 (en) * | 2013-11-29 | 2015-06-04 | Spreadtrum Communications (Shanghai) Co., Ltd. | Method and device for calibrating frequency synthesizer in communication terminal |
| CN108736984A (en) * | 2018-08-04 | 2018-11-02 | 深圳思必锐电子技术有限公司 | The frequency offset correction method and device of radio-frequency module |
| CN110401499A (en) * | 2019-08-29 | 2019-11-01 | 杭州博联智能科技股份有限公司 | For Fast Frequency Offset calibration method, device, equipment and the medium of radio-frequency module |
| CN111781987A (en) * | 2020-07-08 | 2020-10-16 | Oppo广东移动通信有限公司 | Real-time clock calibration method and related device |
| CN112671494A (en) * | 2020-12-21 | 2021-04-16 | 广州粒子微电子有限公司 | Method and device for automatically adjusting clock frequency offset |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115913441A (en) * | 2023-01-09 | 2023-04-04 | 北京智芯微电子科技有限公司 | Multimode communication module clock frequency offset joint estimation method and initial frequency offset calibration method |
| CN115913441B (en) * | 2023-01-09 | 2023-05-23 | 北京智芯微电子科技有限公司 | Clock frequency offset joint estimation method and initial frequency offset calibration method for multimode communication module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11012970B2 (en) | Method for processing radio frequency interference and electronic device | |
| CN112087354A (en) | Communication protocol testing method and device, electronic equipment and storage medium | |
| EP4191905A1 (en) | Test method and device | |
| CN113726454A (en) | Radio frequency test method, device, computer equipment and storage medium | |
| CN110866555A (en) | Incremental data clustering method, device and equipment and readable storage medium | |
| CN114175748B (en) | Communication frequency adjusting method, device, electronic equipment and storage medium | |
| CN111708931B (en) | Big data acquisition method based on mobile internet and artificial intelligence cloud service platform | |
| CN113612717A (en) | Frequency offset calibration method and device, electronic equipment and storage medium | |
| CN113325404A (en) | Method and device for measuring equipment distance and electronic equipment | |
| CN113078962B (en) | Radio frequency calibration method, radio frequency calibration device, test equipment and storage medium | |
| CN108832944A (en) | Power compensating method, device, terminal device and storage medium | |
| CN108833033A (en) | RF calibration determination method for parameter, device, storage medium and mobile terminal | |
| CN113055901A (en) | Terminal positioning method and device | |
| CN107483122B (en) | Power test system, power compensation method and device | |
| CN112383660B (en) | Throughput rate testing method and device of intelligent terminal, storage medium and terminal | |
| TW202315351A (en) | Method and system for aligning test environments | |
| CN115348656A (en) | MiFi device, power adjusting method thereof, electronic device and system | |
| CN113766406A (en) | Method, system and device for testing earphone | |
| CN110768734A (en) | Measuring method and device | |
| CN115080412A (en) | Software update quality evaluation method, device, equipment and computer storage medium | |
| CN108802589B (en) | Active device bias parameter determination method and device, storage medium and electronic equipment | |
| CN114337858A (en) | Parameter processing method and device | |
| CN112740739B (en) | Interference processing method and device, storage medium and electronic equipment | |
| CN114244467A (en) | Cell search method and device | |
| CN114358102A (en) | Data classification method, device, equipment and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211105 |