CN110048785B - Method for carrying out radio frequency calibration on NB-IOT module and related equipment - Google Patents
Method for carrying out radio frequency calibration on NB-IOT module and related equipment Download PDFInfo
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- CN110048785B CN110048785B CN201910429889.8A CN201910429889A CN110048785B CN 110048785 B CN110048785 B CN 110048785B CN 201910429889 A CN201910429889 A CN 201910429889A CN 110048785 B CN110048785 B CN 110048785B
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- H—ELECTRICITY
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- H04B17/11—Monitoring; Testing of transmitters for calibration
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Abstract
The embodiment of the application provides a method and related equipment for performing radio frequency calibration on an NB-IOT module, the method and related equipment have the advantages that the input frequency band for judging the radio frequency calibration is obtained, the corresponding NB-IOT module is connected and initialized, and then the actual parameters of the NB-IOT module are automatically calibrated, so that the calibration efficiency is greatly improved, the factors of human interference are reduced, the operation is simple, and the technical problems that the conventional radio frequency calibration method mainly uses a special tool for manual calibration, the professional requirement is high, the operation is complex, the time consumption is long, and the influence of human factors is serious are solved.
Description
Technical Field
The present application relates to the field of software technologies, and in particular, to a method and related device for performing radio frequency calibration on an NB-IOT module.
Background
The Narrow-Band Internet of Things (NB-IOT) is an important branch of the Internet of everything, supports cellular data connection of low-power-consumption equipment in a wide area network, and supports high-efficiency connection of equipment with long standby time and high network connection requirements.
The wireless communication of the NB-IOT modules is controlled by radio frequency parameters, and due to the difference of manufacturing processes, the radio frequency parameters of each NB-IOT module are not completely the same, so that each NB-IOT module needs to be calibrated in the production process, so that the proper radio frequency parameters are found and configured in the corresponding NB-IOT module, and the communication performance of the NB-IOT module can be fully exerted.
The existing radio frequency calibration method mainly adopts a special tool to carry out calibration manually, and has the technical problems of high professional requirement, complex operation, long time consumption and serious influence of human factors.
Disclosure of Invention
The embodiment of the application provides a method and related equipment for radio frequency calibration of an NB-IOT module, and solves the technical problems that the existing radio frequency calibration method mainly uses a special tool for manual calibration, and has high professional requirement, complex operation, long time consumption and serious influence of human factors.
In view of the above, a first aspect of the present application provides a method for performing radio frequency calibration on an NB-IOT module, the method comprising:
acquiring an input frequency band for judging radio frequency calibration;
connecting with a corresponding NB-IOT module and initializing the NB-IOT module;
and sequentially calibrating the actual parameters of the NB-IOT module, wherein the actual parameters comprise transmitting power, transmitting frequency and receiving frequency, and writing the calibration result into the NB-IOT module.
Optionally, the writing the calibration result to the NB-IOT module further includes:
and testing the NB-IOT module, determining that the radio frequency performance of the NB-IOT module reaches the standard, and otherwise, returning to recalibrate the NB-IOT module.
Optionally, the sequentially calibrating the transmission power, the transmission frequency, and the reception frequency of the NB-IOT module, and writing the calibration result into the NB-IOT module specifically includes:
acquiring preset parameters, wherein the preset parameters comprise target parameters, a DAC initial value, a DAC gain value, an RF gain value and a preset voltage value, and the target parameters comprise target transmitting power, target transmitting frequency and target receiving frequency;
sequentially judging whether the actual parameters of the NB-IOT are larger than the target parameters, if so, reducing the initial value of the DAC by a preset percentage, and then judging again until the actual parameters of the NB-IOT are smaller than the target parameters;
comparing the difference value between the actual parameter and the target parameter of the NB-IOT with a preset error range;
when the difference value between the actual parameter of the NB-IOT and the target parameter is larger than the preset error range, judging whether the DAC initial value is smaller than a preset DAC maximum value, when the DAC initial value is smaller than the preset DAC maximum value, increasing the DAC initial value based on the DAC gain value, returning to judge whether the actual parameter of the NB-IOT is larger than the target parameter again, when the DAC initial value is larger than the preset DAC maximum value, judging whether the RF gain value is smaller than a preset RF gain maximum value, if so, increasing the RF gain value, returning to judge whether the actual parameter of the NB-IOT is larger than the target parameter again, and if not, reporting an error and exiting calibration;
and when the difference value between the actual parameter of the NB-IOT and the target parameter is smaller than the preset error range, obtaining a calibration result and writing the calibration result into the NB-IOT module.
A second aspect of the present application provides an apparatus for radio frequency calibration of an NB-IOT module, the apparatus comprising:
the acquisition unit is used for acquiring an input frequency band for judging radio frequency calibration;
the connection unit is used for connecting with the corresponding NB-IOT module and initializing the NB-IOT module;
and the calibration unit is used for sequentially calibrating the actual parameters of the NB-IOT module, wherein the actual parameters comprise transmitting power, transmitting frequency and receiving frequency, and writing the calibration result into the NB-IOT module.
Optionally, the method further comprises:
and the test unit is used for testing the NB-IOT module, determining that the radio frequency performance of the NB-IOT module reaches the standard, and returning to the connection unit to recalibrate the NB-IOT module if the radio frequency performance of the NB-IOT module reaches the standard.
Optionally, the calibration unit comprises:
the device comprises an acquisition subunit, a processing unit and a control unit, wherein the acquisition subunit is used for acquiring preset parameters, the preset parameters comprise target parameters, a DAC initial value, a DAC gain value, an RF gain value and a preset voltage value, and the target parameters comprise target transmitting power, target transmitting frequency and target receiving frequency;
the first judgment subunit is configured to sequentially judge whether the actual parameter of the NB-IOT is greater than the target parameter, and if so, reduce the DAC initial value by a preset percentage, and then perform judgment again until the actual parameter of the NB-IOT is less than the target parameter;
the second judgment subunit is configured to compare a difference between the actual parameter of the NB-IOT and the target parameter with a preset error range, jump to a third judgment unit when the difference between the actual parameter of the NB-IOT and the target parameter is greater than the preset error range, and obtain a calibration result and write the calibration result into the NB-IOT module when the difference between the actual parameter of the NB-IOT and the target parameter is less than the preset error range;
the third judging subunit is configured to judge whether the DAC initial value is smaller than a preset DAC maximum value, increase the DAC initial value based on the DAC gain value and return to the first judging unit when the DAC initial value is smaller than the preset DAC maximum value, and jump to the fourth judging unit when the DAC initial value is larger than the preset DAC maximum value;
and the fourth judging subunit is configured to judge whether the RF gain value is smaller than a preset RF gain maximum value, increase the RF gain value if the RF gain value is smaller than the preset RF gain maximum value, and return to the first judging unit, otherwise, report an error and exit from calibration.
A third aspect of the present application provides a system for performing radio frequency calibration on an NB-IOT module, which includes the apparatus for performing radio frequency calibration on an NB-IOT module according to the second aspect, an input device, a storage device, and a display device;
the input device is used for acquiring user input to judge the frequency band of radio frequency calibration and is connected with the device for performing radio frequency calibration on the NB-IOT module;
the storage device is connected with the device for performing radio frequency calibration on the NB-IOT module and is used for storing preset parameters;
the display device is connected with the device for performing radio frequency calibration on the NB-IOT module and is used for displaying a calibration result.
A fourth aspect of the present application provides an apparatus for radio frequency calibration of an NB-IOT module, the apparatus comprising a processor and a memory:
the memory is used for storing program codes and transmitting the program codes to the processor;
the processor is configured to perform the steps of the method for radio frequency calibration of an NB-IOT module according to the first aspect as described above, according to instructions in the program code.
A fifth aspect of the present application provides a computer-readable storage medium for storing program code for performing the method for radio frequency calibration of an NB-IOT module according to the first aspect.
According to the technical scheme, the embodiment of the application has the following advantages:
in the embodiment of the application, a method for performing radio frequency calibration on an NB-IOT module is provided, the corresponding NB-IOT module is connected and initialized by acquiring an input frequency band for judging the radio frequency calibration, and then the actual parameters of the NB-IOT module are automatically calibrated, so that the calibration efficiency is greatly improved, the factors of human interference are reduced, the operation is simple, and the technical problems that the existing radio frequency calibration method mainly uses a special tool for manual calibration, the professional requirement is high, the operation is complex, the time consumption is long, and the influence of the human factors is serious are solved.
Drawings
FIG. 1 is a block diagram of a system architecture for RF calibration of an NB-IOT module according to an embodiment of the present application;
fig. 2 is a flow chart of a method for performing rf calibration of an NB-IOT module in an embodiment of the present application;
FIG. 3 is a flow chart of another method for RF calibrating an NB-IOT module according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of an apparatus for rf calibration of an NB-IOT module in an embodiment of the present application;
fig. 5 is another schematic structural diagram of an apparatus for rf calibration of an NB-IOT module according to an embodiment of the present disclosure.
Detailed Description
In order to make the technical solutions of the present application better understood, 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.
It should be understood that the present application is applied to a system for performing radio frequency calibration on NB-IOT modules, please refer to fig. 1, fig. 1 is an architecture diagram of an information processing system according to an embodiment of the present application, as shown in fig. 1, fig. 1 includes a device 101 for performing radio frequency calibration on NB-IOT modules, an input device 102, a storage device 103, and a display device 104;
the input device 102 is used for acquiring a frequency band input by a user and used for judging radio frequency calibration, and is connected with the device 101 for performing radio frequency calibration on the NB-IOT module;
the storage device 103 is connected to the device 101 for performing radio frequency calibration on the NB-IOT module, and is configured to store preset parameters;
the display device 104 is connected to the device 101 for performing radio frequency calibration on the NB-IOT module, and is configured to display a calibration result.
The application designs a method and related equipment for carrying out radio frequency calibration on an NB-IOT module, and solves the technical problems that the existing radio frequency calibration method mainly uses a special tool for manual calibration, and has high professional requirement, complex operation, long time consumption and serious influence of human factors.
For convenience of understanding, please refer to fig. 2, fig. 2 is a flowchart illustrating a method for performing radio frequency calibration on an NB-IOT module according to an embodiment of the present disclosure, and as shown in fig. 2, the method specifically includes:
201. acquiring an input frequency band for judging radio frequency calibration;
202. connecting with a corresponding NB-IOT module and initializing the NB-IOT module;
203. and sequentially calibrating actual parameters of the NB-IOT module, wherein the actual parameters comprise transmitting power, transmitting frequency and receiving frequency, and writing the calibration result into the NB-IOT module.
In the embodiment of the application, a method for performing radio frequency calibration on an NB-IOT module is provided, the corresponding NB-IOT module is connected and initialized by acquiring an input frequency band for judging the radio frequency calibration, and then the actual parameters of the NB-IOT module are automatically calibrated, so that the calibration efficiency is greatly improved, the factors of human interference are reduced, the operation is simple, and the technical problems that the existing radio frequency calibration method mainly uses a special tool for manual calibration, the professional requirement is high, the operation is complex, the time consumption is long, and the influence of the human factors is serious are solved.
Referring to fig. 3, fig. 3 is a flowchart illustrating another method of performing radio frequency calibration on an NB-IOT module according to an embodiment of the present disclosure, where as shown in fig. 3, the method specifically includes:
301. acquiring an input frequency band for judging radio frequency calibration;
302. connecting with a corresponding NB-IOT module and initializing the NB-IOT module;
303. acquiring preset parameters, wherein the preset parameters comprise target parameters, a DAC initial value, a DAC gain value, an RF gain value and a preset voltage value, and the target parameters comprise target transmitting power, target transmitting frequency and target receiving frequency;
304. sequentially judging whether the actual parameters of the NB-IOT are larger than the target parameters, if so, reducing the initial value of the DAC with the preset percentage, and then judging again until the actual parameters of the NB-IOT are smaller than the target parameters;
305. comparing the difference value between the actual parameter and the target parameter of the NB-IOT with a preset error range;
306. when the difference value of the actual parameter and the target parameter of the NB-IOT is larger than the preset error range, judging whether the DAC initial value is smaller than the preset DAC maximum value, when the DAC initial value is smaller than the preset DAC maximum value, increasing the DAC initial value based on the DAC gain value, returning to judge whether the actual parameter of the NB-IOT is larger than the target parameter again, when the DAC initial value is larger than the preset DAC maximum value, judging whether the RF gain value is smaller than the preset RF gain maximum value, if so, increasing the RF gain value, returning to judge whether the actual parameter of the NB-IOT is larger than the target parameter again, and if not, reporting an error and exiting calibration;
307. when the difference value between the actual parameter and the target parameter of the NB-IOT is smaller than a preset error range, obtaining a calibration result and writing the calibration result into the NB-IOT module;
308. and testing the NB-IOT module, determining that the radio frequency performance of the NB-IOT module reaches the standard, and returning to recalibrate the NB-IOT module if recalibration is not performed.
Referring to fig. 4, fig. 4 is a schematic structural diagram of an apparatus for performing radio frequency calibration on an NB-IOT module according to an embodiment of the present disclosure, as shown in fig. 4, specifically:
an obtaining unit 401, configured to obtain an input frequency band for determining radio frequency calibration;
a connection unit 402, configured to connect with a corresponding NB-IOT module and initialize the NB-IOT module;
the calibration unit 403 is configured to sequentially calibrate actual parameters of the NB-IOT module, where the actual parameters include transmit power, transmit frequency, and receive frequency, and write a calibration result into the NB-IOT module.
Referring to fig. 5, fig. 5 is another schematic structural diagram of an apparatus for performing rf calibration on an NB-IOT module according to an embodiment of the present disclosure, as shown in fig. 5, specifically:
an obtaining unit 501, configured to obtain an input frequency band for determining radio frequency calibration;
a connection unit 502, configured to connect with a corresponding NB-IOT module and initialize the NB-IOT module;
a calibration unit 503, configured to calibrate actual parameters of the NB-IOT module in sequence, where the actual parameters include transmit power, transmit frequency, and receive frequency, and write a calibration result into the NB-IOT module;
the calibration unit 503 includes:
an obtaining subunit 5031, configured to obtain preset parameters, where the preset parameters include a target parameter, a DAC initial value, a DAC gain value, an RF gain value, and a preset voltage value, and the target parameter includes a target transmitting power, a target transmitting frequency, and a target receiving frequency;
a first determining subunit 5032, configured to sequentially determine whether the actual parameter of the NB-IOT is greater than the target parameter, if so, reduce the DAC initial value by a preset percentage, and then perform the determination again until the actual parameter of the NB-IOT is smaller than the target parameter;
a second determining subunit 5033, configured to compare the difference between the actual parameter and the target parameter of the NB-IOT with a preset error range, jump to a third determining unit 5034 when the difference between the actual parameter and the target parameter of the NB-IOT is greater than the preset error range, and obtain a calibration result and write the calibration result into the NB-IOT module when the difference between the actual parameter and the target parameter of the NB-IOT is smaller than the preset error range;
a third determining subunit 5034, configured to determine whether the DAC initial value is smaller than the preset DAC maximum value, increase the DAC initial value based on the DAC gain value and return to the first determining unit when the DAC initial value is smaller than the preset DAC maximum value, and jump to the fourth determining unit 5035 when the DAC initial value is greater than the preset DAC maximum value;
a fourth determining sub-unit 5035, configured to determine whether the RF gain value is smaller than a preset RF gain maximum value, if so, increase the RF gain value and then return to the first determining unit 5032, otherwise, report an error and exit from calibration;
the testing unit 504 is configured to test the NB-IOT module, determine that the radio frequency performance of the NB-IOT module meets the standard, and otherwise, return to the connecting unit 502 to recalibrate the NB-IOT module.
The embodiment of the present application further provides another device for performing radio frequency calibration on an NB-IOT module, where the device includes a processor and a memory:
the memory is used for storing program codes and transmitting the program codes to the processor;
the processor is configured to execute any one implementation of a method for radio frequency calibration of an NB-IOT module described in the foregoing embodiments according to instructions in the program code.
The present application further provides a computer-readable storage medium for storing a program code, where the program code is configured to perform any one of the implementation manners of the method for radio frequency calibration of an NB-IOT module described in the foregoing embodiments.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
The terms "first," "second," "third," "fourth," and the like in the description of the application and the above-described figures, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that in the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" for describing an association relationship of associated objects, indicating that there may be three relationships, e.g., "a and/or B" may indicate: only A, only B and both A and B are present, wherein A and B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of single item(s) or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (5)
1. A method for radio frequency calibration of an NB-IOT module, comprising:
acquiring an input frequency band for judging radio frequency calibration;
connecting with a corresponding NB-IOT module and initializing the NB-IOT module;
sequentially calibrating actual parameters of the NB-IOT module, wherein the actual parameters comprise transmitting power, transmitting frequency and receiving frequency, and writing a calibration result into the NB-IOT module;
after the writing the calibration result to the NB-IOT module, the method further includes:
testing the NB-IOT module, determining that the radio frequency performance of the NB-IOT module reaches the standard, and returning to recalibrate and calibrate the NB-IOT module if the radio frequency performance of the NB-IOT module reaches the standard;
the sequentially calibrating the transmission power, the transmission frequency and the reception frequency of the NB-IOT module, and writing the calibration result into the NB-IOT module specifically includes:
acquiring preset parameters, wherein the preset parameters comprise target parameters, a DAC initial value, a DAC gain value, an RF gain value and a preset voltage value, and the target parameters comprise target transmitting power, target transmitting frequency and target receiving frequency;
sequentially judging whether the actual parameters of the NB-IOT are larger than the target parameters, if so, reducing the initial value of the DAC by a preset percentage, and then judging again until the actual parameters of the NB-IOT are smaller than the target parameters;
comparing the difference value between the actual parameter and the target parameter of the NB-IOT with a preset error range;
when the difference value between the actual parameter of the NB-IOT and the target parameter is larger than the preset error range, judging whether the DAC initial value is smaller than a preset DAC maximum value, when the DAC initial value is smaller than the preset DAC maximum value, increasing the DAC initial value based on the DAC gain value, returning to judge whether the actual parameter of the NB-IOT is larger than the target parameter again, when the DAC initial value is larger than the preset DAC maximum value, judging whether the RF gain value is smaller than a preset RF gain maximum value, if so, increasing the RF gain value, returning to judge whether the actual parameter of the NB-IOT is larger than the target parameter again, and if not, reporting an error and exiting calibration;
and when the difference value between the actual parameter of the NB-IOT and the target parameter is smaller than the preset error range, obtaining a calibration result and writing the calibration result into the NB-IOT module.
2. An apparatus for radio frequency calibration of an NB-IOT module, comprising:
the acquisition unit is used for acquiring an input frequency band for judging radio frequency calibration;
the connection unit is used for connecting with the corresponding NB-IOT module and initializing the NB-IOT module;
the calibration unit is used for sequentially calibrating actual parameters of the NB-IOT module, wherein the actual parameters comprise transmitting power, transmitting frequency and receiving frequency, and writing a calibration result into the NB-IOT module;
the test unit is used for testing the NB-IOT module, determining that the radio frequency performance of the NB-IOT module reaches the standard, and returning to the connection unit to recalibrate the NB-IOT module if the radio frequency performance of the NB-IOT module reaches the standard;
the calibration unit includes:
the device comprises an acquisition subunit, a processing unit and a control unit, wherein the acquisition subunit is used for acquiring preset parameters, the preset parameters comprise target parameters, a DAC initial value, a DAC gain value, an RF gain value and a preset voltage value, and the target parameters comprise target transmitting power, target transmitting frequency and target receiving frequency;
the first judgment subunit is configured to sequentially judge whether the actual parameter of the NB-IOT is greater than the target parameter, and if so, reduce the DAC initial value by a preset percentage, and then perform judgment again until the actual parameter of the NB-IOT is less than the target parameter;
the second judgment subunit is used for comparing the difference value between the actual parameter of the NB-IOT and the target parameter with a preset error range, jumping to a third judgment subunit when the difference value between the actual parameter of the NB-IOT and the target parameter is larger than the preset error range, and obtaining a calibration result and writing the calibration result into the NB-IOT module when the difference value between the actual parameter of the NB-IOT and the target parameter is smaller than the preset error range;
the third judging subunit is configured to judge whether the DAC initial value is smaller than a preset DAC maximum value, increase the DAC initial value based on the DAC gain value and return to the first judging subunit when the DAC initial value is smaller than the preset DAC maximum value, and jump to the fourth judging subunit when the DAC initial value is larger than the preset DAC maximum value;
and the fourth judging subunit is used for judging whether the RF gain value is smaller than a preset RF gain maximum value, if so, increasing the RF gain value and returning to the first judging subunit, and if not, reporting an error and exiting calibration.
3. A system for radio frequency calibration of an NB-IOT module, comprising the apparatus for radio frequency calibration of an NB-IOT module of claim 2, an input device, a storage device, and a display device;
the input device is used for acquiring a frequency band input by a user and used for judging radio frequency calibration, and is connected with the device for performing radio frequency calibration on the NB-IOT module;
the storage device is connected with the device for performing radio frequency calibration on the NB-IOT module and is used for storing preset parameters;
the display device is connected with the device for performing radio frequency calibration on the NB-IOT module and is used for displaying a calibration result.
4. An apparatus for radio frequency calibration of an NB-IOT module, the apparatus comprising a processor and a memory:
the memory is used for storing program codes and transmitting the program codes to the processor;
the processor is configured to perform the method for radio frequency calibration of an NB-IOT module of claim 1 in accordance with instructions in the program code.
5. A computer-readable storage medium storing program code for performing the method for radio frequency calibration of an NB-IOT module of claim 1.
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