CN107396439A - A kind of frequency adjusting method and mobile terminal - Google Patents
A kind of frequency adjusting method and mobile terminal Download PDFInfo
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- CN107396439A CN107396439A CN201710700552.7A CN201710700552A CN107396439A CN 107396439 A CN107396439 A CN 107396439A CN 201710700552 A CN201710700552 A CN 201710700552A CN 107396439 A CN107396439 A CN 107396439A
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- frequency
- mobile terminal
- signal
- base station
- adjustment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Transceivers (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides a kind of frequency adjusting method and mobile terminal, is related to communication of mobile terminal technical field.The frequency adjusting method, including：When mobile terminal can not realize network registry, according to the signal and the local frequency of the mobile terminal received from base station, determine that the mobile terminal enters the reference frequency of line frequency adjustment；According to default adjusting step, the reference frequency is adjusted；According to the reference frequency after adjustment, the signal received from base station is demodulated, determines the frequency of use of the mobile terminal.Such scheme, by when mobile terminal can not be registered to network, utilize the signal and the local frequency of mobile terminal received from base station, realize the adjustment to mobile terminal frequency, mobile terminal can realize that information demodulates using the frequency after adjustment, network registry is completed, the communication of mobile terminal and base station is ensure that with this, ensure that the normal use of mobile terminal.
Description
Technical field
The present invention relates to communication of mobile terminal technical field, more particularly to a kind of frequency adjusting method and mobile terminal.
Background technology
At present in mobile communication, when mobile phone and base station foundation connection, the process of a frequency calibration is had, base station passes through
Whether the frequency determination frequency for the signal that handset emissions come is accurate, is then returned to mobile phone frequency calibration information, realizes mobile phone
The calibration of real net frequency, ensure the exact value of frequency during mobile phone communication, ensure speech quality.
Current transmitting frequency calibration method, it can be used when mobile phone frequency error is smaller, but in limiting temperature or crystal oscillator
Damaged Deng frequency device, output frequency forbidden, and frequency error is larger, when base station can not demodulate useful information, now mobile phone without
Method and base station communication, the process of registration can not be completed, have impact on the normal use of mobile phone.
The content of the invention
The embodiment of the present invention provides a kind of frequency adjusting method and mobile terminal, to solve in the frequency such as limiting temperature or crystal oscillator
During rate device damage, the output frequency of mobile terminal is forbidden so that base station can not demodulate useful information, and mobile terminal can not be with
Base station communication, to complete the process of registration, the problem of influenceing the normal use of mobile terminal.
In order to solve the above-mentioned technical problem, the embodiment of the present invention provides a kind of frequency adjusting method, including：
When mobile terminal can not realize network registry, according to the signal and the local oscillator of the mobile terminal received from base station
Frequency, determine that the mobile terminal enters the reference frequency of line frequency adjustment；
Adjust the reference frequency；
According to the reference frequency after adjustment, the signal received from base station is demodulated, determines making for the mobile terminal
Use frequency.
The embodiment of the present invention also provides a kind of mobile terminal, including：
First determining module, for when mobile terminal can not realize network registry, according to the signal received from base station and
The local frequency of the mobile terminal, determine that the mobile terminal enters the reference frequency of line frequency adjustment；
Adjusting module, for adjusting the reference frequency；
Second determining module, for according to the reference frequency after adjustment, being demodulated to the signal received from base station, it is determined that
The frequency of use of the mobile terminal.
The embodiment of the present invention also provides a kind of mobile terminal, including：Memory, processor and storage are on a memory and can
The computer program run on a processor, above-mentioned frequency adjustment side is realized described in the computing device during computer program
Step in method.
The embodiment of the present invention also provides a kind of computer-readable recording medium, wherein, the computer-readable recording medium
On be stored with computer program, the computer program realizes above-mentioned frequency adjusting method when being executed by processor the step of.
The beneficial effects of the invention are as follows：
Such scheme, by when mobile terminal can not realize network registry, utilizing the signal and movement received from base station
The local frequency of terminal, realizes the adjustment to mobile terminal frequency, and mobile terminal can realize information using the frequency after adjustment
Demodulation, network registry is completed, the communication of mobile terminal and base station is ensure that with this, ensure that the normal use of mobile terminal.
Brief description of the drawings
Fig. 1 represents the flow chart of the frequency adjusting method of the embodiment of the present invention；
Fig. 2 represents the course of work schematic diagram of identification reception signal frequency；
Fig. 3 a represent amplitude schematic diagram of the mobile terminal crystal oscillator by local oscillation signal caused by RXLO circuits；
Fig. 3 b represent the amplitude schematic diagram for the base station downlink signal that mobile terminal receives；
Fig. 3 c represent local oscillation signal and base station down signal mixing after signal amplitude schematic diagram；
Fig. 3 d obtain the amplitude schematic diagram of fundamental frequency signal after representing down-converted；
Fig. 3 e represent the amplitude schematic diagram of the signal obtained after sampling；
Fig. 4 represents the detail flowchart of the frequency adjusting method of the embodiment of the present invention；
Fig. 5 represents one of structural representation of mobile terminal of the embodiment of the present invention；
Fig. 6 represents the two of the structural representation of the mobile terminal of the embodiment of the present invention；
Fig. 7 represents the two of the structural representation of the mobile terminal of the embodiment of the present invention；
Fig. 8 represents the structural representation of the first acquisition submodule of the embodiment of the present invention；
Fig. 9 represents the structural representation of the 3rd acquisition submodule of the embodiment of the present invention；
Figure 10 is the structured flowchart of the mobile terminal of the embodiment of the present invention；
Figure 11 is the structural representation of the mobile terminal of the embodiment of the present invention.
Embodiment
It is right below in conjunction with the accompanying drawings and the specific embodiments to make the object, technical solutions and advantages of the present invention clearer
The present invention is described in detail.
The present invention is directed to when the frequency device such as limiting temperature or crystal oscillator damages, and the output frequency of mobile terminal is forbidden, and is made
Base station can not demodulate useful information, mobile terminal can not and base station communication, to complete the process of registration, influence mobile terminal
Normal use the problem of, there is provided a kind of frequency adjusting method and mobile terminal.
As shown in figure 1, the flow chart of the frequency adjusting method for one embodiment of the invention.Illustrated with reference to this figure
The implementation process of frequency adjusting method.
The embodiment of the present invention provides a kind of frequency adjusting method, including：
Step 101, when mobile terminal can not realize network registry, according to the signal and the movement received from base station eventually
The local frequency at end, determine that the mobile terminal enters the reference frequency of line frequency adjustment；
It should be noted that the frequency adjusting method of the embodiment of the present invention, which is applied to mobile terminal, can not be registered to network
When (can not realize network registry), because mobile terminal is when carrying out network registry, mainly local oscillator is exported using the local oscillator of itself
Signal, when the local frequency of local oscillation signal and the consistent frequency of base station side, mobile terminal can be to realize normal network
Registration, if the local frequency of local oscillation signal and the frequency of base station side are inconsistent, mobile terminal can not then realize normal network note
Copy, in step 101, mainly using local frequency and the signal received from base station, first determine that mobile terminal enters line frequency tune
Reference frequency when whole, the reference frequency be mobile terminal enter line frequency adjustment when reference frame, that is, the general direction adjusted,
This step 101 can be regarded as primarily determining that mobile terminal adjustment frequency.
Step 102, the reference frequency is adjusted；
The step 102 is on the basis of reference frequency, according to default adjusting step, continues to adjust reference frequency
It is whole, to reach the accurate adjustment to mobile terminal frequency.
Step 103, according to the reference frequency after adjustment, the signal received from base station is demodulated, determines the movement
The frequency of use of terminal.
It should be noted that if mobile terminal can realize network registry, mobile terminal can utilize current frequency of use
The demodulation of receive information is carried out, the signal received from base station is carried out if mobile terminal can use the reference frequency after adjustment to realize
Demodulation, then it can carry out network registry using the reference frequency after adjustment as the frequency of use of mobile terminal.
Said process, by when mobile terminal can not realize network registry, utilizing the signal and movement received from base station
The local frequency of terminal, realizes the adjustment to mobile terminal frequency, and mobile terminal can realize information using the frequency after adjustment
Demodulation, network registry is completed, the communication of mobile terminal and base station is ensure that with this, ensure that the normal use of mobile terminal.
It should be noted that in order to realize the accurate adjustment of mobile terminal frequency, it can not realize that network is noted in mobile terminal
Volume, and it is determined that before reference frequency, the frequency adjusting method, should also include：
Obtain the signal power from base station received signal；
If the signal power be more than or equal to predetermined power value and in the first preset time the signal power change
Change amplitude is in the first default excursion, then the signal and the local frequency of the mobile terminal that basis receives from base station,
Determine that the mobile terminal enters the reference frequency of line frequency adjustment.
It should be noted that mobile terminal is after powering, network is searched for by scanning the method for channel, in the long period
When can not be registered to network, mobile terminal records are only detecting signal to the testing result of the signal power of reception signal
Power it is relatively stable and more than or equal in the case of predetermined power value (for example, in five minutes, signal power be all higher than or
Equal to 20dbm, and the maximum of signal power differs with the minimum value of signal power and is less than or equal to 5dbm), ability starts frequency
The step of determination reference frequency in adjustment.
Specifically, step 101 is when realizing, including：
Step 1011, at least one local frequency of mobile terminal is obtained；
It should be noted that the local frequency be mobile terminal local oscillator output local oscillation signal frequency, the step it is specific
Implementation is：Obtain the working channel of base station；According to the working channel, obtain corresponding with the frequency of the working channel
At least one local frequency of mobile terminal.The local oscillator that mobile terminal exports according to the frequency adjustment local oscillator of the working channel of base station
It is corresponding with the working channel of base station that signal, i.e. mobile terminal adjust out at least one local oscillation signal respectively.Mobile terminal facilitates
The determination of follow-up reference frequency is carried out with the local frequency.
Step 1012, down-converted, acquisition processing are carried out to the signal received from base station using each local frequency
Fundamental frequency signal afterwards；
It should be noted that mobile terminal is in processing, it is by signal of each local frequency with being received from base station
It is mixed, makees down-converted, after down-converted, fundamental frequency signal can be obtained.
Step 1013, target local frequency corresponding with the fundamental frequency signal for meeting preparatory condition is obtained；
It should be noted that the specific implementation of the step is：The fundamental frequency signal is sampled, obtains numeral letter
Number amplitude；Acquisition meets target fundamental frequency signal corresponding to the target number signal amplitude of preparatory condition, the target number signal
Amplitude is the amplitude of variation of the data signal amplitude is pre- in second more than or equal to preset value and in the second preset time
If the data signal amplitude in excursion；Determine the target local frequency corresponding to the target fundamental frequency signal.In this step,
Mainly the fundamental frequency signal that down coversion obtains is sampled using modulus (ADC) converter, obtains the amplitude VS times of signal
Data signal, when needing exist for explanation, the signal that only receives and close local frequency, ADC converters can just be adopted
Sample to down coversion fundamental frequency signal, if the signal received differs the frequency of the fundamental frequency signal too much, obtained with local frequency
Too high, beyond the working frequency of ADC converters, the signal for sampling out is then abnormal；After the completion of sampling, after judging sampling
Data signal amplitude, when data signal amplitude be more than or equal to preset value and in preset time data signal amplitude change
When amplitude is in default excursion, then can confirm that currently employed local frequency (i.e. target local frequency) with currently
The frequency of cell is close, and now, the local frequency can be as the reference frequency for entering line frequency adjustment for mobile terminal.
As shown in Figures 2 and 3, the process of above-mentioned identification reception signal frequency is：Mobile terminal crystal oscillator passes through RXLO electricity
The signal that local oscillation signal caused by road (as shown in Figure 3 a) receives with mobile terminal (as shown in Figure 3 b, represents the descending letter of base station
Number) by frequency mixer produce fundamental frequency signal (it should be noted that as shown in Figure 3 c, local oscillation signal is compared with downstream signal frequencies
It is close, a fundamental frequency signal is obtained after frequency mixer carries out down-converted, as shown in Figure 3 d), the fundamental frequency signal passes through amplification
Device realizes the amplification of signal, and the signal of amplification is sampled by ADC converters (as shown in Figure 3 e, can obtain signal after sampling
Amplitude), and by the signal output after being sampled to CPU.
Step 1014, determine that the target local frequency enters the reference frequency of line frequency adjustment for mobile terminal.
It should be noted that after reference frequency is determined, mobile terminal may proceed to be adjusted the reference frequency, i.e.,
Mobile terminal is adjusted according to default step-length to reference frequency, for example, it is reference frequency that default step-length, which is Δ f, flo, with flo
+ Δ f, flo- Δ f, flo+2 Δ f, flo-2 Δ f ... order adjustment reference frequency.It should be noted that mobile terminal is
The adjustment to reference frequency is realized by adjusting crystal oscillator internal capacitance array and other frequency parameters.
It should be noted that mobile terminal is in course of adjustment, the reference frequency of each after adjustment can be judged,
Judge using the reference frequency after adjustment the signal that the mobile terminal receives from base station whether can be demodulated；If utilize the tune
Reference frequency after whole can demodulate the signal that the mobile terminal receives from base station, it is determined that the reference frequency after the adjustment
For the frequency of use of mobile terminal.
It should be noted that reference frequency after adjustment can demodulate the signal that the mobile terminal receives from base station
When, then mobile terminal can be established with base station and communicated, and now, mobile terminal should store the frequency parameter of the frequency of use, should
Frequency parameter includes：Reference frequency and default adjusting step, when corresponding to the crystal oscillator of mobile terminal, mobile terminal storage is
Crystal oscillator and local oscillator parameter, by said process, just complete the calibration process of mobile terminal.
As shown in figure 4, the specific implementation process of the frequency adjusting method of the embodiment of the present invention is：
Step 401, mobile terminal-opening, net registration is searched；
Step 402, judge whether to succeed in registration, flow terminates if succeeding in registration, if registration is unsuccessful, performs step
403；
Step 403, mobile terminal adjusts local frequency according to channel frequency, and down-converted is carried out to the signal received,
Carry out ADC samplings；
Step 404, judge whether the signal of ADC samplings is more than or equal to preset value and stablizes relatively, if being more than or equal to
Preset value and relatively stable, then perform step 405, otherwise, jump back to step 403；
Step 405, the reference frequency of mobile terminal is determined；
Step 406, by adjusting the reference frequency of crystal oscillator small parameter perturbations mobile terminal；
Step 407, judge whether the reference frequency after adjustment can demodulate the signal received from base station, if can, perform
Step 408, otherwise, step 406 is jumped back to；
Step 408, storage sends frequency parameter corresponding to the reference frequency after adjustment, completes calibration, completes registration process.
The present invention uses open loop frequency adjustment mode, and the module such as crystal oscillator or phaselocked loop is in limiting temperature inside mobile terminal
Or during the module damage larger frequency deviation of generation, mobile terminal can not be registered on network for a long time, now by adjusting mobile terminal
The frequency parameter of itself exports suitable local frequency to handle the signal received, goes out what is received by finely tuning frequency demodulation
Communication is established in network signal, and base station, ensure that the normal use of mobile terminal.
As shown in figure 5, the structural representation of the mobile terminal for the embodiment of the present invention, should scheme and combine Fig. 6 extremely below
Mobile terminal based on the frequency adjusting method is specifically described Fig. 9.
The embodiment of the present invention provides a kind of mobile terminal, including：
First determining module 501, for when mobile terminal can not realize network registry, according to the signal received from base station
With the local frequency of the mobile terminal, determine that the mobile terminal enters the reference frequency of line frequency adjustment；
Adjusting module 502, for adjusting the reference frequency；
Second determining module 503, for according to the reference frequency after adjustment, being demodulated to the signal received from base station,
Determine the frequency of use of the mobile terminal.
Alternatively, first determining module 501, including：
Power acquisition submodule 5011, for obtaining the signal power from base station received signal；
Frequency determination sub-module 5012, if being more than or equal to predetermined power value and pre- first for the signal power
If the amplitude of variation of the signal power is in the first default excursion in the time, then according to the signal received from base station and
The local frequency of the mobile terminal, determine that the mobile terminal enters the reference frequency of line frequency adjustment.
Alternatively, first determining module 501, including：
First acquisition submodule 5013, for obtaining at least one local frequency of mobile terminal；
Second acquisition submodule 5014, for carrying out down coversion to the signal received from base station using each local frequency
Processing, the fundamental frequency signal after acquisition processing；
3rd acquisition submodule 5015, the corresponding target local oscillator frequency of fundamental frequency signal for obtaining with meeting preparatory condition
Rate；
First determination sub-module 5016, for determining that the target local frequency is the ginseng that mobile terminal enters line frequency adjustment
Examine frequency.
Alternatively, first acquisition submodule 5013, including：
First acquisition unit 50131, for obtaining the working channel of base station；
Second acquisition unit 50132, for according to the working channel, obtaining corresponding with the frequency of the working channel
At least one local frequency of mobile terminal.
Alternatively, the 3rd acquisition submodule 5015, including：
3rd acquiring unit 50151, for being sampled to the fundamental frequency signal, obtain data signal amplitude；
4th acquiring unit 50152, meet target base corresponding to the target number signal amplitude of preparatory condition for obtaining
Frequency signal, the target number signal amplitude are the data signal more than or equal to preset value and in the second preset time
The data signal amplitude that the amplitude of variation of amplitude is in the second default excursion；
Determining unit 50153, for determining the target local frequency corresponding to the target fundamental frequency signal.
Alternatively, second determining module 503, including：
Judging submodule 5031, for judge using the reference frequency after adjustment whether can demodulate the mobile terminal from
The signal that base station receives；
Second determination sub-module 5032, if for the mobile terminal can be demodulated using the reference frequency after the adjustment
The signal received from base station, it is determined that the reference frequency after the adjustment is the frequency of use of mobile terminal.
Alternatively, the mobile terminal, in addition to：
Memory module 504, for storing the frequency parameter of the frequency of use；
The frequency parameter includes：Reference frequency and default adjusting step.
It should be noted that the mobile terminal embodiment is the mobile terminal corresponding with said frequencies method of adjustment, on
All implementations of frequency adjusting method are stated suitable for the mobile terminal embodiment, can also reach identical technology effect
Fruit.
The embodiment of the present invention also provides a kind of mobile terminal, including：Memory, processor and storage are on a memory and can
The computer program run on a processor, following process is realized described in the computing device during computer program：
When mobile terminal can not realize network registry, according to the signal and the local oscillator of the mobile terminal received from base station
Frequency, determine that the mobile terminal enters the reference frequency of line frequency adjustment；
Adjust the reference frequency；
According to the reference frequency after adjustment, the signal received from base station is demodulated, determines making for the mobile terminal
Use frequency.
Alternatively, the processor is additionally operable to realize：Obtain the signal power from base station received signal；
If the signal power be more than or equal to predetermined power value and in the first preset time the signal power change
Change amplitude is in the first default excursion, then the signal and the local frequency of the mobile terminal that basis receives from base station,
Determine that the mobile terminal enters the reference frequency of line frequency adjustment.
Alternatively, the processor is additionally operable to realize：Obtain at least one local frequency of mobile terminal；
Down-converted is carried out to the signal received from base station using each local frequency, the fundamental frequency letter after acquisition processing
Number；
Obtain target local frequency corresponding with the fundamental frequency signal for meeting preparatory condition；
Determine that the target local frequency enters the reference frequency of line frequency adjustment for mobile terminal.
Alternatively, the processor is additionally operable to realize：Obtain the working channel of base station；
According to the working channel, at least one local oscillator of acquisition mobile terminal corresponding with the frequency of the working channel
Frequency.
Alternatively, the processor is additionally operable to realize：The fundamental frequency signal is sampled, obtains data signal amplitude；
Acquisition meets target fundamental frequency signal corresponding to the target number signal amplitude of preparatory condition, the target number signal
Amplitude is the amplitude of variation of the data signal amplitude is pre- in second more than or equal to preset value and in the second preset time
If the data signal amplitude in excursion；
Determine the target local frequency corresponding to the target fundamental frequency signal.
Alternatively, the processor is additionally operable to realize：Judge whether to demodulate using the reference frequency after adjustment described
The signal that mobile terminal receives from base station；
If the signal that the mobile terminal receives from base station can be demodulated using the reference frequency after the adjustment, it is determined that
Reference frequency after the adjustment is the frequency of use of mobile terminal.
Alternatively, the processor is additionally operable to realize：Store the frequency parameter of the frequency of use；
The frequency parameter includes：Reference frequency and default adjusting step.
The mobile terminal of the embodiment of the present invention, the communication of mobile terminal and base station is ensure that, ensure that mobile terminal just
Often use.
As shown in Figure 10, for the embodiment of the present invention mobile terminal structured flowchart.This is illustrated with reference to the figure
The application entity of the frequency adjusting method of invention.
Mobile terminal 1000 as shown in Figure 10 includes：At least one processor 1001, memory 1002, at least one net
Network interface 1004 and user interface 1003.Each component in mobile terminal 1000 is coupled by bus system 1005.
It is understood that bus system 1005 is used to realize the connection communication between these components.Bus system 1005, which is removed, includes data/address bus
Outside, in addition to power bus, controlling bus and status signal bus in addition.But for the sake of clear explanation, in Fig. 10 will be each
Kind bus is all designated as bus system 1005.
Wherein, user interface 1003 can include display, keyboard or pointing device (for example, mouse, trace ball
(trackball), touch-sensitive plate or touch-screen etc..
It is appreciated that the memory 1002 in the embodiment of the present invention can be volatile memory or non-volatile memories
Device, or may include both volatibility and nonvolatile memory.Wherein, nonvolatile memory can be read-only storage
(Read-Only Memory, ROM), programmable read only memory (Programmable ROM, PROM), erasable programmable are only
Read memory (Erasable PROM, EPROM), Electrically Erasable Read Only Memory (Electrically EPROM,
) or flash memory EEPROM.Volatile memory can be random access memory (Random Access Memory, RAM), and it is used
Make External Cache.By exemplary but be not restricted explanation, the RAM of many forms can use, such as static random-access
Memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random-access
Memory (Synchronous DRAM, SDRAM), double data speed synchronous dynamic RAM (Double Data
Rate SDRAM, DDRSDRAM), it is enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), synchronous
Connect dynamic random access memory (Synch link DRAM, SLDRAM) and direct rambus random access memory
(Direct Rambus RAM, DRRAM).The memory 1002 of system and method described herein be intended to including but not limited to this
A little and any other suitable type memory.
In some embodiments, memory 1002 stores following element, can perform module or data structure, or
Their subset of person, or their superset：Operating system 10021 and application program 10022.
Wherein, operating system 10021, comprising various system programs, such as ccf layer, core library layer, driving layer etc., it is used for
Realize various basic businesses and the hardware based task of processing.Application program 10022, include various application programs, such as matchmaker
Body player (Media Player), browser (Browser) etc., for realizing various applied business.Realize that the present invention is implemented
The program of example method may be embodied in application program 10022.
In embodiments of the present invention, can be specifically to answer by calling program or the instruction of the storage of memory 1002
With the program or instruction stored in program 10022, processor 1001 is used for when mobile terminal can not realize network registry, according to
The signal and the local frequency of the mobile terminal received from base station, determine that the mobile terminal enters the reference frequency of line frequency adjustment
Rate；Adjust the reference frequency；According to the reference frequency after adjustment, the signal received from base station is demodulated, it is determined that described
The frequency of use of mobile terminal.
The method that the embodiments of the present invention disclose can apply in processor 1001, or real by processor 1001
It is existing.Processor 1001 is probably a kind of IC chip, has the disposal ability of signal.In implementation process, the above method
Each step can be completed by the instruction of the integrated logic circuit of the hardware in processor 1001 or software form.Above-mentioned
Processor 1001 can be general processor, digital signal processor (Digital Signal Processor, DSP), special
Integrated circuit (Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field
Programmable Gate Array, FPGA) either other PLDs, discrete gate or transistor logic,
Discrete hardware components.It can realize or perform disclosed each method, step and the logic diagram in the embodiment of the present invention.It is general
Processor can be microprocessor or the processor can also be any conventional processor etc..With reference to institute of the embodiment of the present invention
The step of disclosed method, can be embodied directly in hardware decoding processor and perform completion, or with the hardware in decoding processor
And software module combination performs completion.Software module can be located at random access memory, flash memory, read-only storage, may be programmed read-only
In the ripe storage medium in this area such as memory or electrically erasable programmable memory, register.The storage medium is located at
Memory 1002, processor 1001 read the information in memory 1002, with reference to the step of its hardware completion above method.
It is understood that embodiments described herein can use hardware, software, firmware, middleware, microcode or its
Combine to realize.Realized for hardware, processing unit can be realized in one or more application specific integrated circuit (Application
Specific Integrated Circuits, ASIC), digital signal processor (Digital Signal Processing,
DSP), digital signal processing appts (DSP Device, DSPD), programmable logic device (Programmable Logic
Device, PLD), field programmable gate array (Field-Programmable Gate Array, FPGA), general processor,
In controller, microcontroller, microprocessor, other electronic units for performing herein described function or its combination.
Realize, can be realized herein by performing the module (such as process, function etc.) of function described herein for software
Described technology.Software code is storable in memory and passes through computing device.Memory can within a processor or
Realized outside processor.
Alternatively, the processor 1001 is used for：Obtain the signal power from base station received signal；If the signal power is big
In or equal to predetermined power value and the amplitude of variation of the signal power is in the first default change model in the first preset time
In enclosing, then according to the signal and the local frequency of the mobile terminal received from base station, determine that the mobile terminal enters line frequency
The reference frequency of adjustment.
Alternatively, the processor 1001 is additionally operable to：Obtain at least one local frequency of mobile terminal；Using each originally
Vibration frequency carries out down-converted, the fundamental frequency signal after acquisition processing to the signal received from base station；Obtain with meeting default bar
Target local frequency corresponding to the fundamental frequency signal of part；Determine that the target local frequency enters the ginseng of line frequency adjustment for mobile terminal
Examine frequency.
Alternatively, the processor 1001 is additionally operable to：Obtain the working channel of base station；According to the working channel, obtain with
At least one local frequency of mobile terminal corresponding to the frequency of the working channel.
Alternatively, the processor 1001 is additionally operable to：The fundamental frequency signal is sampled, obtains data signal amplitude；Obtain
Take and meet target fundamental frequency signal corresponding to the target number signal amplitude of preparatory condition, the target number signal amplitude be more than
Or the amplitude of variation of the data signal amplitude is in the second default excursion equal to preset value and in the second preset time
Interior data signal amplitude；Determine the target local frequency corresponding to the target fundamental frequency signal.
Alternatively, the processor 1001 is additionally operable to：Judge whether the shifting can be demodulated using the reference frequency after adjustment
The signal that dynamic terminal receives from base station；If it can demodulate the mobile terminal using the reference frequency after the adjustment to connect from base station
The signal of receipts, it is determined that the reference frequency after the adjustment is the frequency of use of mobile terminal.
Alternatively, the processor 1001 is additionally operable to：Store the frequency parameter of the frequency of use；
The frequency parameter includes：Reference frequency and default adjusting step.
Mobile terminal 1000 can realize each process that mobile terminal is realized in previous embodiment, to avoid repeating, this
In repeat no more.
The mobile terminal of the embodiment of the present invention passes through the basis of processor 1001 when mobile terminal can not realize network registry
The signal and the local frequency of the mobile terminal received from base station, determine that the mobile terminal enters the reference frequency of line frequency adjustment
Rate；Adjust the reference frequency；According to the reference frequency after adjustment, the signal received from base station is demodulated, it is determined that described
The frequency of use of mobile terminal；The communication of mobile terminal and base station is ensure that with this, ensure that the normal use of mobile terminal.
Figure 11 is the structural representation of the mobile terminal of one embodiment of the invention.Specifically, the mobile terminal in Figure 11 can
Think mobile phone, tablet personal computer, personal digital assistant (Personal Digital Assistant, PDA) or vehicle-mounted computer etc..
Mobile terminal in Figure 11 includes radio frequency (Radio Frequency, RF) circuit 1110, memory 1120, input
Unit 1130, display unit 1140, processor 1150, voicefrequency circuit 1160, WiFi (Wireless Fidelity) module 1170
With power supply 1180.
Wherein, input block 1130 is available for the numeral or character information for receiving user's input, and generation and movement are eventually
The signal input that the user at end is set and function control is relevant.Specifically, in the embodiment of the present invention, the input block 1130 can
With including contact panel 1131.Contact panel 1131, also referred to as touch-screen, collect touch operation of the user on or near it
(for example user uses the operations of any suitable object or annex on contact panel 1131 such as finger, stylus), and according to pre-
The formula first set drives corresponding attachment means.Optionally, contact panel 1131 may include touch detecting apparatus and touch to control
Two parts of device processed.Wherein, the touch orientation of touch detecting apparatus detection user, and the signal that touch operation is brought is detected, will
Signal sends touch controller to；Touch controller receives touch information from touch detecting apparatus, and is converted into contact
Coordinate, then give the processor 1150, and the order sent of reception processing device 1150 and can be performed.Furthermore, it is possible to using
The polytypes such as resistance-type, condenser type, infrared ray and surface acoustic wave realize contact panel 1131.Except contact panel 1131,
Input block 1130 can also include other input equipments 1132, and other input equipments 1132 can include but is not limited to secondary or physical bond
One or more in disk, function key (such as volume control button, switch key etc.), trace ball, mouse, action bars etc..
Wherein, display unit 1140 can be used for display by the information of user's input or be supplied to information and the movement of user
The various menu interfaces of terminal.Display unit 1140 may include display panel 1141, optionally, can use LCD or organic hairs
The forms such as optical diode (Organic Light-Emitting Diode, OLED) configure display panel 1141.
It should be noted that contact panel 1131 can cover display panel 1141, touch display screen is formed, when the touch display screen
After detecting the touch operation on or near it, processor 1150 is sent to determine the type of touch event, is followed by subsequent processing
Device 1150 provides corresponding visual output according to the type of touch event in touch display screen.
Touch display screen includes Application Program Interface viewing area and conventional control viewing area.The Application Program Interface viewing area
And arrangement mode of the conventional control viewing area does not limit, can be arranged above and below, left-right situs etc. can distinguish two it is aobvious
Show the arrangement mode in area.The Application Program Interface viewing area is displayed for the interface of application program.Each interface can be with
The interface element such as the icon comprising at least one application program and/or widget desktop controls.The Application Program Interface viewing area
It can also be the empty interface not comprising any content.The conventional control viewing area is used to show the higher control of utilization rate, for example,
Application icons such as settings button, interface numbering, scroll bar, phone directory icon etc..
Wherein processor 1150 is the control centre of mobile terminal, utilizes each of various interfaces and connection whole mobile phone
Individual part, by running or performing the software program and/or module that are stored in first memory 1121, and call and be stored in
Data in second memory 1122, the various functions and processing data of mobile terminal are performed, it is whole so as to be carried out to mobile terminal
Body monitors.Optionally, processor 1150 may include one or more processing units.
In embodiments of the present invention, by call store the first memory 1121 in software program and/or module and/
Or the data in the second memory 1122, processor 1150 be used for when mobile terminal can not realize network registry, according to from
The signal and the local frequency of the mobile terminal that base station receives, determine that the mobile terminal enters the reference frequency of line frequency adjustment
Rate；Adjust the reference frequency；According to the reference frequency after adjustment, the signal received from base station is demodulated, it is determined that described
The frequency of use of mobile terminal.
Alternatively, processor 1150 is additionally operable to：Obtain the signal power from base station received signal；If the signal power is big
In or equal to predetermined power value and the amplitude of variation of the signal power is in the first default change model in the first preset time
In enclosing, then according to the signal and the local frequency of the mobile terminal received from base station, determine that the mobile terminal enters line frequency
The reference frequency of adjustment.
Alternatively, processor 1150 is additionally operable to：Obtain at least one local frequency of mobile terminal；Utilize each local oscillator
Frequency carries out down-converted, the fundamental frequency signal after acquisition processing to the signal received from base station；Obtain and meet preparatory condition
Fundamental frequency signal corresponding to target local frequency；Determine that the target local frequency enters the reference of line frequency adjustment for mobile terminal
Frequency.
Alternatively, processor 1150 is additionally operable to：Obtain the working channel of base station；According to the working channel, acquisition and institute
State at least one local frequency of mobile terminal corresponding to the frequency of working channel.
Alternatively, processor 1150 is additionally operable to：The fundamental frequency signal is sampled, obtains data signal amplitude；Obtain
Meet target fundamental frequency signal corresponding to the target number signal amplitude of preparatory condition, the target number signal amplitude to be more than or
Equal to preset value and in the second preset time, the amplitude of variation of the data signal amplitude is in the second default excursion
Data signal amplitude；Determine the target local frequency corresponding to the target fundamental frequency signal.
Alternatively, processor 1150 is additionally operable to：Judge whether the movement can be demodulated using the reference frequency after adjustment
The signal that terminal receives from base station；If it can demodulate the mobile terminal using the reference frequency after the adjustment to receive from base station
Signal, it is determined that reference frequency after the adjustment is the frequency of use of mobile terminal.
Alternatively, processor 1150 is additionally operable to：Store the frequency parameter of the frequency of use；
The frequency parameter includes：Reference frequency and default adjusting step.
The mobile terminal of the embodiment of the present invention can realize each process that mobile terminal is realized in previous embodiment, to keep away
Exempt to repeat, repeat no more here.
The mobile terminal of the embodiment of the present invention passes through the basis of processor 1150 when mobile terminal can not realize network registry
The signal and the local frequency of the mobile terminal received from base station, determine that the mobile terminal enters the reference frequency of line frequency adjustment
Rate；Adjust the reference frequency；According to the reference frequency after adjustment, the signal received from base station is demodulated, it is determined that described
The frequency of use of mobile terminal；The communication of mobile terminal and base station is ensure that with this, ensure that the normal use of mobile terminal.
The embodiment of the present invention also provides a kind of computer-readable recording medium, wherein, the computer-readable recording medium
On be stored with computer program, the computer program realizes the above-mentioned frequency applied to mobile terminal side when being executed by processor
Each process in rate method of adjustment embodiment, and identical technique effect can be reached, to avoid repeating, repeat no more here.
Wherein, described computer-readable recording medium, such as read-only storage (Read-Only Memory, abbreviation ROM), arbitrary access
Memory (Random Access Memory, abbreviation RAM), magnetic disc or CD etc..
Each embodiment in this specification is described by the way of progressive, what each embodiment stressed be with
The difference of other embodiment, between each embodiment identical similar part mutually referring to.
It should be understood by those skilled in the art that, the embodiment of the embodiment of the present invention can be provided as method, apparatus or calculate
Machine program product.Therefore, the embodiment of the present invention can use complete hardware embodiment, complete software embodiment or combine software and
The form of the embodiment of hardware aspect.Moreover, the embodiment of the present invention can use one or more wherein include computer can
With in the computer-usable storage medium (including but is not limited to magnetic disk storage, CD-ROM, optical memory etc.) of program code
The form of the computer program product of implementation.
The embodiment of the present invention is with reference to method according to embodiments of the present invention, terminal device (system) and computer program
The flow chart and/or block diagram of product describes.It should be understood that can be by computer program instructions implementation process figure and/or block diagram
In each flow and/or square frame and the flow in flow chart and/or block diagram and/or the combination of square frame.These can be provided
Computer program instructions are set to all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing terminals
Standby processor is to produce a machine so that is held by the processor of computer or other programmable data processing terminal equipments
Capable instruction is produced for realizing in one flow of flow chart or multiple flows and/or one square frame of block diagram or multiple square frames
The device for the function of specifying.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing terminal equipments
In the computer-readable memory to work in a specific way so that the instruction being stored in the computer-readable memory produces bag
The manufacture of command device is included, the command device is realized in one flow of flow chart or multiple flows and/or one side of block diagram
The function of being specified in frame or multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing terminal equipments so that
Series of operation steps is performed on computer or other programmable terminal equipments to produce computer implemented processing, so that
The instruction performed on computer or other programmable terminal equipments is provided for realizing in one flow of flow chart or multiple flows
And/or specified in one square frame of block diagram or multiple square frames function the step of.
Although having been described for the preferred embodiment of the embodiment of the present invention, those skilled in the art once know base
This creative concept, then other change and modification can be made to these embodiments.So appended claims are intended to be construed to
Including preferred embodiment and fall into having altered and changing for range of embodiment of the invention.
It should also be noted that, herein, such as first and second or the like relational terms are used merely to one
Entity or operation make a distinction with another entity or operation, and not necessarily require or imply between these entities or operation
Any this actual relation or order be present.Moreover, term " comprising ", "comprising" or its any other variant are intended to contain
Lid nonexcludability includes, so that process, method, article or terminal device including a series of elements not only include that
A little key elements, but also the other element including being not expressly set out, or also include for this process, method, article or
The intrinsic key element of terminal device.In the absence of more restrictions, the key element limited by sentence "including a ...", and
It is not precluded within the process including the key element, method, article or terminal device and other identical element is also present.
Above-described is the preferred embodiment of the present invention, it should be pointed out that is come for the ordinary person of the art
Say, some improvements and modifications can also be made under the premise of principle of the present invention is not departed from, and these improvements and modifications also exist
In protection scope of the present invention.
Claims (16)
- A kind of 1. frequency adjusting method, it is characterised in that including：When mobile terminal can not realize network registry, according to the local oscillator of the signal and the mobile terminal received from base station frequency Rate, determine that the mobile terminal enters the reference frequency of line frequency adjustment；Adjust the reference frequency；According to the reference frequency after adjustment, the signal received from base station is demodulated, determine the mobile terminal uses frequency Rate.
- 2. frequency adjusting method according to claim 1, it is characterised in that according to the signal and described received from base station The local frequency of mobile terminal, the step of mobile terminal enters the reference frequency of line frequency adjustment is determined, including：Obtain the signal power from base station received signal；If the signal power be more than or equal to predetermined power value and in the first preset time the signal power change width Degree is in the first default excursion, then according to the signal and the local frequency of the mobile terminal received from base station, it is determined that The mobile terminal enters the reference frequency of line frequency adjustment.
- 3. frequency adjusting method according to claim 1, it is characterised in that the signal and institute that the basis receives from base station The local frequency of mobile terminal is stated, determines the step of mobile terminal enters the reference frequency of line frequency adjustment, including：Obtain at least one local frequency of mobile terminal；Down-converted, the fundamental frequency signal after acquisition processing are carried out to the signal received from base station using each local frequency；Obtain target local frequency corresponding with the fundamental frequency signal for meeting preparatory condition；Determine that the target local frequency enters the reference frequency of line frequency adjustment for mobile terminal.
- 4. frequency adjusting method according to claim 3, it is characterised in that obtain mobile terminal at least one The step of vibration frequency, including：Obtain the working channel of base station；According to the working channel, at least one local oscillator of mobile terminal corresponding with the frequency of the working channel is obtained frequently Rate.
- 5. frequency adjusting method according to claim 3, it is characterised in that fundamental frequency of the acquisition with meeting preparatory condition Corresponding to signal the step of target local frequency, including：The fundamental frequency signal is sampled, obtains data signal amplitude；Acquisition meets target fundamental frequency signal corresponding to the target number signal amplitude of preparatory condition, the target number signal amplitude For more than or equal to preset value and in the second preset time, the amplitude of variation of the data signal amplitude is in the second default change Data signal amplitude in the range of change；Determine the target local frequency corresponding to the target fundamental frequency signal.
- 6. frequency adjusting method according to claim 1, it is characterised in that the reference frequency according to after adjustment is right The step of being demodulated from the signal of base station reception, determine the frequency of use of the mobile terminal, including：Judge using the reference frequency after adjustment the signal that the mobile terminal receives from base station whether can be demodulated；If the signal that the mobile terminal receives from base station can be demodulated using the reference frequency after the adjustment, it is determined that described Reference frequency after adjustment is the frequency of use of mobile terminal.
- 7. frequency adjusting method according to claim 1, it is characterised in that also include：Store the frequency parameter of the frequency of use；The frequency parameter includes：Reference frequency and default adjusting step.
- A kind of 8. mobile terminal, it is characterised in that including：First determining module, for when mobile terminal can not realize network registry, according to the signal that is received from base station and described The local frequency of mobile terminal, determine that the mobile terminal enters the reference frequency of line frequency adjustment；Adjusting module, for adjusting the reference frequency；Second determining module, for according to the reference frequency after adjustment, being demodulated to the signal received from base station, it is determined that described The frequency of use of mobile terminal.
- 9. mobile terminal according to claim 8, it is characterised in that first determining module, including：Power acquisition submodule, for obtaining the signal power from base station received signal；Frequency determination sub-module, if being more than or equal to predetermined power value and in the first preset time for the signal power The amplitude of variation of the signal power is in the first default excursion, then according to the signal and the movement received from base station The local frequency of terminal, determine that the mobile terminal enters the reference frequency of line frequency adjustment.
- 10. mobile terminal according to claim 8, it is characterised in that first determining module, including：First acquisition submodule, for obtaining at least one local frequency of mobile terminal；Second acquisition submodule, for carrying out down-converted to the signal received from base station using each local frequency, obtain Take the fundamental frequency signal after processing；3rd acquisition submodule, the corresponding target local frequency of fundamental frequency signal for obtaining with meeting preparatory condition；First determination sub-module, for determining that the target local frequency is the reference frequency that mobile terminal enters line frequency adjustment.
- 11. mobile terminal according to claim 10, it is characterised in that first acquisition submodule, including：First acquisition unit, for obtaining the working channel of base station；Second acquisition unit, for according to the working channel, obtaining mobile terminal corresponding with the frequency of the working channel At least one local frequency.
- 12. mobile terminal according to claim 10, it is characterised in that the 3rd acquisition submodule, including：3rd acquiring unit, for being sampled to the fundamental frequency signal, obtain data signal amplitude；4th acquiring unit, meet target fundamental frequency signal corresponding to the target number signal amplitude of preparatory condition, institute for obtaining State change of the target number signal amplitude for the data signal amplitude more than or equal to preset value and in the second preset time The data signal amplitude that amplitude is in the second default excursion；Determining unit, for determining the target local frequency corresponding to the target fundamental frequency signal.
- 13. mobile terminal according to claim 8, it is characterised in that second determining module, including：Judging submodule, for judging received using whether the reference frequency after adjustment can demodulate the mobile terminal from base station Signal；Second determination sub-module, if being connect for the mobile terminal can be demodulated using the reference frequency after the adjustment from base station The signal of receipts, it is determined that the reference frequency after the adjustment is the frequency of use of mobile terminal.
- 14. mobile terminal according to claim 8, it is characterised in that also include：Memory module, for storing the frequency parameter of the frequency of use；The frequency parameter includes：Reference frequency and default adjusting step.
- A kind of 15. mobile terminal, it is characterised in that including：Memory, processor and storage are on a memory and can be in processor The computer program of upper operation, realized described in the computing device during computer program as described in any one of claim 1~7 Frequency adjusting method in step.
- 16. a kind of computer-readable recording medium, it is characterised in that be stored with computer on the computer-readable recording medium Program, the frequency adjusting method as any one of claim 1 to 7 is realized when the computer program is executed by processor The step of.
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| CN112040541A (en) * | 2020-09-15 | 2020-12-04 | Oppo广东移动通信有限公司 | Frequency adjustment method, device, terminal and storage medium |
| CN113933791A (en) * | 2021-09-06 | 2022-01-14 | 珠海正和微芯科技有限公司 | Crystal-oscillator-free FMCW radar transceiver device and frequency calibration method |
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| CN113933791A (en) * | 2021-09-06 | 2022-01-14 | 珠海正和微芯科技有限公司 | Crystal-oscillator-free FMCW radar transceiver device and frequency calibration method |
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| CN107396439B (en) | 2020-03-10 |
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