CN112579341A - Method and device for identifying whether radio frequency calibration data of mobile terminal is normal - Google Patents
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- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
- G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
- G06F11/1004—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's to protect a block of data words, e.g. CRC or checksum
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- H04B—TRANSMISSION
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- H04B17/11—Monitoring; Testing of transmitters for calibration
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Abstract
The invention provides a method and a device for identifying whether radio frequency calibration data of a mobile terminal is normal. The method comprises the following steps: in a mobile terminal subjected to radio frequency calibration, generating a first check code by using radio frequency calibration data, a calibration flag bit and a serial number, and storing the first check code; responding to the command for checking the calibration data, reading the radio frequency calibration data, the calibration flag bit and the serial number of the mobile terminal to generate a second check code; and comparing the first check code with the second check code, if the check codes are consistent, judging that the radio frequency calibration data is normal, and if the check codes are inconsistent, judging that the radio frequency calibration data is abnormal.
Description
Technical Field
The present invention relates to mobile terminal radio frequency calibration, and in particular, to a method and an apparatus for identifying whether mobile terminal radio frequency calibration data is normal.
Background
Calibration is an extremely important step of a mobile terminal, which directly affects the radio frequency performance of the mobile terminal. The existing radio frequency calibration identification technology for a mobile terminal production line identifies whether radio frequency calibration of the mobile terminal is normal or not through a radio frequency calibration flag bit. After the radio frequency calibration station on the production line completes the radio frequency calibration of the mobile terminal, a radio frequency calibration flag bit is written into a Nonvolatile Random Access Memory (NVRAM) specified in the mobile terminal. The successful RF calibration flag is written in P, the failed RF calibration flag is written in F, and the un-calibrated RF flag is U (the NV has been initialized to U before the RF calibration station). Before leaving the factory, the mobile terminal checks the radio frequency calibration flag bit in the NVRAM to determine whether the radio frequency calibration data is normal.
The existing mobile terminal production line radio frequency calibration identification technology has some defects. First, even if a production line operator imports radio frequency calibration data of a non-local mobile terminal into a local terminal which has succeeded in radio frequency calibration and covers the radio frequency calibration data of the local terminal, the radio frequency calibration flag bit of the local terminal is still P. The production line cannot identify that the radio frequency calibration data of the mobile terminal is tampered by only the radio frequency calibration flag bit. Due to the difference of the radio frequency devices of the mobile terminal, the terminal cannot use radio frequency calibration data which is not the terminal. Secondly, after the radio frequency calibration station of the production line, even if the radio frequency calibration data is tampered by abnormal operation in the upgrading process of the mobile terminal software version, the state of the radio frequency calibration flag bit is still P. The prior art cannot recognize that the radio frequency calibration data is tampered by only using the calibration flag bit. Moreover, after the mobile terminal completes the radio frequency calibration station, if the station is wrongly written in the subsequent station test and the radio frequency calibration flag bit is tampered, the production line operator can wrongly judge that the radio frequency calibration data is abnormal through the radio frequency calibration flag bit.
Disclosure of Invention
The invention aims to provide a method and a device for identifying whether radio frequency calibration data of a mobile terminal is normal or not, so that the accuracy of radio frequency calibration of the mobile terminal is improved.
In order to solve the technical problem, the invention provides a method for identifying whether radio frequency calibration data of a mobile terminal is normal, which comprises the following steps: in a mobile terminal subjected to radio frequency calibration, generating a first check code by using radio frequency calibration data, a calibration flag bit and a serial number, and storing the first check code; responding to the command for checking the calibration data, reading the radio frequency calibration data, the calibration flag bit and the serial number of the mobile terminal to generate a second check code; and comparing the first check code with the second check code, if the check codes are consistent, judging that the radio frequency calibration data is normal, and if the check codes are inconsistent, judging that the radio frequency calibration data is abnormal.
In an embodiment of the present invention, the method further includes receiving the written sequence number at the mobile terminal.
In an embodiment of the invention, the method for generating the first check code by using the rf calibration data, the calibration flag bit and the serial number includes an encryption process.
In an embodiment of the invention, the method further includes displaying a result of identifying whether the rf calibration data is normal.
In an embodiment of the invention, the method is performed in the mobile terminal.
The invention also provides a device for identifying whether the radio frequency calibration data of the mobile terminal is normal, which comprises the following steps: the generating module is used for generating a check code; the input module is used for receiving a calibration data checking instruction; the control module is used for controlling the generation module to generate a first check code by using the radio frequency calibration data, the calibration flag bit and the serial number after the radio frequency calibration, and controlling the generation module to read the radio frequency calibration data, the calibration flag bit and the serial number of the mobile terminal and generate a second check code in response to a command of checking the calibration data; the storage module is used for storing the first check code; and the judging module is used for comparing the first check code with the second check code, judging that the radio frequency calibration data is normal if the check codes are consistent, and judging that the radio frequency calibration data is abnormal if the check codes are inconsistent.
In an embodiment of the present invention, the generating module includes an encrypting module, configured to generate the first check code and the second check code in an encrypted manner.
In an embodiment of the invention, the apparatus further includes an output module, configured to output a result of identifying whether the rf calibration data is normal.
The invention also provides a device for identifying whether the radio frequency calibration data of the mobile terminal is normal, which comprises the following steps: a memory for storing instructions executable by the processor; and a processor for executing the instructions to implement the method as described above.
The invention also provides a mobile terminal which comprises the device for identifying whether the radio frequency calibration data of the mobile terminal is normal or not.
Compared with the prior art, the radio frequency calibration method has the advantages that the radio frequency calibration accuracy of the mobile terminal of the production line is improved and the production yield of the mobile terminal of the production line is improved in a check code check mode. The invention also achieves the effect of identifying whether the mobile terminal is refurbished after sale.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the principle of the invention. In the drawings:
fig. 1 is a block diagram illustrating an apparatus for identifying whether radio frequency calibration data of a mobile terminal is normal according to an embodiment of the present disclosure.
Fig. 2 is a schematic diagram of a method for generating a check code by encryption according to an embodiment of the present application.
Fig. 3 is a flowchart illustrating a method for identifying whether radio frequency calibration data of a mobile terminal is normal according to an embodiment of the present application.
Fig. 4 is a flowchart illustrating an rf calibration data determination process according to an embodiment of the present application.
Fig. 5 is a schematic hardware implementation environment for identifying whether the rf calibration data of the mobile terminal is normal according to an embodiment of the present application.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only examples or embodiments of the application, from which the application can also be applied to other similar scenarios without inventive effort for a person skilled in the art. Unless otherwise apparent from the context, or otherwise indicated, like reference numbers in the figures refer to the same structure or operation.
As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements.
The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited. Further, although the terms used in the present application are selected from publicly known and used terms, some of the terms mentioned in the specification of the present application may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Further, it is required that the present application is understood not only by the actual terms used but also by the meaning of each term lying within.
It will be understood that when an element is referred to as being "on," "connected to," "coupled to" or "contacting" another element, it can be directly on, connected or coupled to, or contacting the other element or intervening elements may be present. In contrast, when an element is referred to as being "directly on," "directly connected to," "directly coupled to" or "directly contacting" another element, there are no intervening elements present. Similarly, when a first component is said to be "in electrical contact with" or "electrically coupled to" a second component, there is an electrical path between the first component and the second component that allows current to flow. The electrical path may include capacitors, coupled inductors, and/or other components that allow current to flow even without direct contact between the conductive components.
Fig. 1 is a block diagram illustrating an apparatus for identifying whether radio frequency calibration data of a mobile terminal is normal according to an embodiment of the present disclosure. Referring to fig. 1, an apparatus for identifying whether radio frequency calibration data of a mobile terminal is normal according to this embodiment includes a generating module 101, an input/output module 102, a control module 103, a storage module 104, and a determining module 105. The control module 103 is used for controlling the radio frequency calibration check process. More specifically, the control module 103 is used for controlling the reading of the radio frequency calibration data, the calibration flag and the Serial Number (SN), controlling the operation of the generation module 101, controlling the judgment operation of the judgment module 105, and controlling the interaction of the input/output module 102. The generating module 101 is configured to generate a check code according to the radio frequency calibration data, the radio frequency calibration flag bit, and the serial number. One example of the generating module 101 is an encrypting module, which encrypts the 3 data to generate a check code, as shown in fig. 2. Examples of algorithms for the encryption process are MD5, SHA-1, etc. The storage module 104 is used for storing encrypted data, such as check codes. An example of the storage module 104 is a storage partition programmed within a corresponding mobile terminal. The input/output module 102 is used to interact with a user. In one aspect, the input/output module 102 may receive user-entered check calibration data instructions. In another aspect, the input/output module 102 may display the results of the examination of the calibration data to the user. Examples of input modules are a mouse, keyboard, touch pad, tablet, sound capture device, etc. Examples of output modules are a display screen, a speaker, etc. In one embodiment, a touch screen may be used as the input/output module 102. The judging module 105 is configured to judge whether the radio frequency calibration data of the mobile terminal is normal by judging the check code, and provide a judgment result.
After the mobile terminal completes the rf calibration and the writing of the calibration flag bit and the serial number, the control module 103 controls the generation module 101 to read the rf calibration data, the calibration flag bit and the serial number, and encrypt and generate the first check code. The generating module 101 stores the generated first check code in the storage module 104.
In another stage, the user sends a check calibration data command through the input module. In response to the branch, the control module 103 controls the generation module 101 to read the rf calibration data, the calibration flag bit, and the serial number of the mobile terminal to generate the second check code. The judging module 105 reads the first check code stored in the storage module 104 and the checked second check code and compares them, if the check codes are consistent, it can be determined that the rf calibration data is normal, and if the check codes are inconsistent, it can be determined that the rf calibration data is abnormal and tampered.
The apparatus shown in fig. 1 may be included as part of a mobile terminal.
Fig. 3 is a flowchart illustrating a method for identifying whether radio frequency calibration data of a mobile terminal is normal according to an embodiment of the present application. This method can be implemented using the apparatus shown in fig. 1, but can also be implemented in other apparatuses. Referring to fig. 3, a method for identifying whether radio frequency calibration data of a mobile terminal is normal in this embodiment includes the following steps:
in step 301, in the rf calibrated mobile terminal, a first check code is generated using the rf calibration data, the calibration flag bit, and the serial number, and the first check code is stored.
This step is executed, for example, by the control module 103 controlling the generation module 101, and stores the first check code in the storage module 104.
In step 302, in response to the check calibration data command, the radio frequency calibration data, the calibration flag bit and the serial number of the mobile terminal are read to generate a second check code.
This step is, for example, the input/output module 102 receives the command for checking the calibration data, and the control module 103 controls the generation module 101 to execute the generation operation according to the command.
In step 303, the first check code and the second check code are compared, and if the check codes are consistent, the radio frequency calibration data is determined to be normal, and if the check codes are inconsistent, the radio frequency calibration data is determined to be abnormal.
This step is performed, for example, by the control module 103 controlling the judging module 105 to read the first check code from the storage module 104 and compare the first check code with the second check code.
Fig. 4 is a flowchart illustrating an rf calibration data determination process according to an embodiment of the present application. Referring to FIG. 4, the RF calibration data, the serial number and the RF calibration flag are respectively read in steps 401-403. At step 404, a second parity code is generated. In step 405, it is determined whether the second check code is consistent with the previously stored first check code. If so, the RF calibration data is determined to be normal in step 406, otherwise, the RF calibration data is determined to be abnormal in step 407.
Flow charts are used herein to illustrate operations performed by systems according to embodiments of the present application. It should be understood that the preceding or following operations are not necessarily performed in the exact order in which they are performed. Rather, various steps may be processed in reverse order or simultaneously. Meanwhile, other operations are added to or removed from these processes.
In one example, after the production line downloading station downloads the software version to the mobile terminal, the number writing station writes the serial number into the mobile terminal. For example, the serial number is written into the mobile terminal by a number writing tool by scanning a serial number two-dimensional code assigned by the mobile terminal through a code scanning gun. And the calibration station completes the calibration of the mobile terminal and writes the calibration flag bit. The device and the method encrypt the radio frequency calibration data, the serial number and the calibration flag bit to generate a first check code, and store the first check code in the mobile terminal storage partition. The system and the method check the radio frequency calibration data and display the check result on the human-computer interface. If the checking result is correct, the man-machine interface displays that the mobile terminal calibration data is normal, and if the checking result is incorrect, the man-machine interface displays that the mobile terminal calibration data is abnormal.
Fig. 5 is a schematic diagram of a hardware implementation environment for identifying whether radio frequency calibration data of a mobile terminal is normal according to an embodiment of the present application. The identification system 500 may include an internal communication bus 501, a Processor (Processor)502, a Read Only Memory (ROM)503, a Random Access Memory (RAM)504, and a communication port 505. The internal communication bus 501 may enable data communication among the components of the recognition system 500. The processor 502 may make the determination and issue the prompt. In some embodiments, the processor 502 may be comprised of one or more processors. The communication port 505 may enable the analysis system 500 to communicate data with the outside. In some embodiments, identification system 500 may send and receive information and data from a network through communication port 505. The recognition system 500 may also include various forms of program storage units and data storage units, such as a Read Only Memory (ROM)503 and a Random Access Memory (RAM)504, capable of storing various data files for computer processing and/or communication, as well as possible program instructions for execution by the processor 502. The processor executes these instructions to implement the main parts of the method. The results processed by the processor are communicated to the user device through the communication port and displayed on the user interface.
The above method for identifying whether the rf calibration data is normal can be implemented as a computer program, stored in the ROM 503, and loaded into the processor 502 for execution, so as to implement the method of the present application.
The present application also provides a computer readable medium having stored thereon computer program code which, when executed by a processor, implements a method as described above.
Having thus described the basic concept, it will be apparent to those skilled in the art that the foregoing disclosure is by way of example only, and is not intended to limit the present application. Various modifications, improvements and adaptations to the present application may occur to those skilled in the art, although not explicitly described herein. Such modifications, improvements and adaptations are proposed in the present application and thus fall within the spirit and scope of the exemplary embodiments of the present application.
Also, this application uses specific language to describe embodiments of the application. Reference throughout this specification to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic described in connection with at least one embodiment of the present application is included in at least one embodiment of the present application. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, some features, structures, or characteristics of one or more embodiments of the present application may be combined as appropriate.
Aspects of the present application may be embodied entirely in hardware, entirely in software (including firmware, resident software, micro-code, etc.) or in a combination of hardware and software. The above hardware or software may be referred to as "data block," module, "" engine, "" unit, "" component, "or" system. The processor may be one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), digital signal processing devices (DAPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), processors, controllers, microcontrollers, microprocessors, or a combination thereof. Furthermore, aspects of the present application may be represented as a computer product, including computer readable program code, embodied in one or more computer readable media. For example, computer-readable media may include, but are not limited to, magnetic storage devices (e.g., hard disk, floppy disk, magnetic strips … …), optical disks (e.g., Compact Disk (CD), Digital Versatile Disk (DVD) … …), smart cards, and flash memory devices (e.g., card, stick, key drive … …).
The computer readable medium may comprise a propagated data signal with the computer program code embodied therein, for example, on a baseband or as part of a carrier wave. The propagated signal may take any of a variety of forms, including electromagnetic, optical, and the like, or any suitable combination. The computer readable medium can be any computer readable medium that can communicate, propagate, or transport the program for use by or in connection with an instruction execution system, apparatus, or device. Program code on a computer readable medium may be propagated over any suitable medium, including radio, electrical cable, fiber optic cable, radio frequency signals, or the like, or any combination of the preceding.
Similarly, it should be noted that in the preceding description of embodiments of the application, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure aiding in the understanding of one or more of the embodiments. This method of disclosure, however, is not intended to require more features than are expressly recited in the claims. Indeed, the embodiments may be characterized as having less than all of the features of a single embodiment disclosed above.
Although the present application has been described with reference to the present specific embodiments, it will be recognized by those skilled in the art that the foregoing embodiments are merely illustrative of the present application and that various changes and substitutions of equivalents may be made without departing from the spirit of the application, and therefore, it is intended that all changes and modifications to the above-described embodiments that come within the spirit of the application fall within the scope of the claims of the application.
Claims (10)
1. A method for identifying whether radio frequency calibration data of a mobile terminal is normal comprises the following steps:
in a mobile terminal subjected to radio frequency calibration, generating a first check code by using radio frequency calibration data, a calibration flag bit and a serial number, and storing the first check code;
responding to the command for checking the calibration data, reading the radio frequency calibration data, the calibration flag bit and the serial number of the mobile terminal to generate a second check code; and
and comparing the first check code with the second check code, judging that the radio frequency calibration data is normal if the check codes are consistent, and judging that the radio frequency calibration data is abnormal if the check codes are inconsistent.
2. The method of claim 1, further comprising receiving the written sequence number at the mobile terminal.
3. The method of claim 1, wherein generating the first check code using the radio frequency calibration data, the calibration flag bit, and the serial number comprises an encryption process.
4. The method of claim 1, further comprising displaying the identification result of whether the radio frequency calibration data is normal.
5. The method of claim 1, wherein the method is performed in the mobile terminal.
6. An apparatus for identifying whether radio frequency calibration data of a mobile terminal is normal or not, comprising:
the generating module is used for generating a check code;
the input module is used for receiving a calibration data checking instruction;
the control module is used for controlling the generation module to generate a first check code by using the radio frequency calibration data, the calibration flag bit and the serial number after the radio frequency calibration, and controlling the generation module to read the radio frequency calibration data, the calibration flag bit and the serial number of the mobile terminal and generate a second check code in response to a command of checking the calibration data;
the storage module is used for storing the first check code; and
and the judging module is used for comparing the first check code with the second check code, judging that the radio frequency calibration data is normal if the check codes are consistent, and judging that the radio frequency calibration data is abnormal if the check codes are inconsistent.
7. The apparatus of claim 6, wherein the generating module comprises an encrypting module to cryptographically generate the first and second check codes.
8. The apparatus of claim 6, further comprising an output module for outputting a result of identifying whether the radio frequency calibration data is normal.
9. An apparatus for identifying whether radio frequency calibration data of a mobile terminal is normal or not, comprising:
a memory for storing instructions executable by the processor; and
a processor for executing the instructions to implement the method of any one of claims 1-5.
10. A mobile terminal comprising means for identifying whether mobile terminal radio frequency calibration data is normal according to any of claims 6-9.
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| CN202011442690.8A CN112579341A (en) | 2020-12-08 | 2020-12-08 | Method and device for identifying whether radio frequency calibration data of mobile terminal is normal |
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| CN202011442690.8A CN112579341A (en) | 2020-12-08 | 2020-12-08 | Method and device for identifying whether radio frequency calibration data of mobile terminal is normal |
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| US20070093266A1 (en) * | 2005-10-26 | 2007-04-26 | Lg Electronics Inc. | Mobile communication terminal having a radio frequency calibration data recovering function and a method of backing up and restoring calibration data |
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| WO2018040355A1 (en) * | 2016-08-31 | 2018-03-08 | 中兴通讯股份有限公司 | Radio frequency detection method and system |
| CN110913417A (en) * | 2019-11-22 | 2020-03-24 | 东莞市小精灵教育软件有限公司 | Method, system, equipment and storage medium for protecting radio frequency parameters |
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| US20070093266A1 (en) * | 2005-10-26 | 2007-04-26 | Lg Electronics Inc. | Mobile communication terminal having a radio frequency calibration data recovering function and a method of backing up and restoring calibration data |
| CN102625281A (en) * | 2011-02-01 | 2012-08-01 | 上海晨兴希姆通电子科技有限公司 | Wireless communication module and upgrade method thereof |
| CN106293801A (en) * | 2015-06-29 | 2017-01-04 | 展讯通信（上海）有限公司 | Mobile terminal and data updating method, system and upgrading data generating device |
| WO2018040355A1 (en) * | 2016-08-31 | 2018-03-08 | 中兴通讯股份有限公司 | Radio frequency detection method and system |
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