WO2023056819A1 - 小区驻留方法、装置、终端及存储介质 - Google Patents

小区驻留方法、装置、终端及存储介质 Download PDF

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Publication number
WO2023056819A1
WO2023056819A1 PCT/CN2022/117387 CN2022117387W WO2023056819A1 WO 2023056819 A1 WO2023056819 A1 WO 2023056819A1 CN 2022117387 W CN2022117387 W CN 2022117387W WO 2023056819 A1 WO2023056819 A1 WO 2023056819A1
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WIPO (PCT)
Prior art keywords
abnormal
terminal
frequency band
signal transmission
transmission power
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PCT/CN2022/117387
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English (en)
French (fr)
Inventor
李欣然
周兰林
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Oppo广东移动通信有限公司
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Publication of WO2023056819A1 publication Critical patent/WO2023056819A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/20—Performing reselection for specific purposes for optimising the interference level

Definitions

  • the embodiments of the present application relate to the field of communication technologies, and in particular to a cell camping method, device, terminal, and storage medium.
  • the power amplifier (Power Amplifier, PA) is a pre-amplification circuit for terminal equipment to amplify the voltage of small signals.
  • the terminal when the PA is abnormal (such as aging or damage), the terminal stays in the frequency band corresponding to the abnormal PA, resulting in the failure to output power, resulting in silent calls and unusable basic functions such as data services.
  • the user can only go to the after-sales service to choose to replace the motherboard for repair.
  • the user repairs the abnormal PA by replacing the motherboard, which not only increases the maintenance cost, but also shortens the service life of the terminal.
  • the embodiment of the present application provides a cell camping method, device, terminal, and storage medium, which can prevent terminal services from being affected by insufficient terminal signal transmission power caused by abnormal PA.
  • the technical solution is as follows:
  • the embodiment of the present application provides a cell camping method, the method comprising:
  • an embodiment of the present application provides a device for residing in a cell, and the device includes:
  • the first determination module is configured to determine an abnormal PA based on signal transmission power, wherein at least two PAs are set in the terminal, and different PAs are used to perform power amplification processing on signals in different frequency bands;
  • a second determining module configured to determine the frequency band corresponding to the abnormal PA as a forbidden frequency band
  • a cell camping module configured to perform cell camping based on the forbidden frequency band, wherein the frequency band of the cell where the terminal camps does not belong to the forbidden frequency band.
  • an embodiment of the present application provides a terminal, the terminal includes a processor and a memory, at least one program is stored in the memory, and the at least one program is loaded and executed by the processor to implement the above-mentioned The cell camping method described in the aspect.
  • an embodiment of the present application provides a computer-readable storage medium, where at least one program is stored in the computer-readable storage medium, and the program is loaded and executed by a processor to implement the above-mentioned Cell residency method.
  • an embodiment of the present application provides a computer program product, where the computer program product includes computer instructions, and the computer instructions are stored in a computer-readable storage medium.
  • the processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the terminal executes the cell camping method of the above aspect.
  • FIG. 1 is a system architecture diagram of a communication system provided by an exemplary embodiment of the present application
  • FIG. 2 shows a flowchart of a cell camping method provided by an exemplary embodiment of the present application
  • FIG. 3 shows a flowchart of a cell camping method provided by another exemplary embodiment of the present application
  • Fig. 4 shows a schematic diagram of the process of updating the number of PA abnormalities shown in an exemplary embodiment of the present application
  • FIG. 5 shows a flowchart of an abnormal PA determination and reset process provided by an exemplary embodiment of the present application
  • FIG. 6 shows a schematic diagram of an abnormal PA determination and reset process provided by an exemplary embodiment of the present application
  • FIG. 7 shows a flowchart of an abnormal PA determination process provided by another exemplary embodiment of the present application.
  • Fig. 8 shows a schematic diagram of the process of setting a history anomaly flag for a PA according to an exemplary embodiment of the present application
  • Fig. 9 shows a schematic diagram of the process of deleting the historical abnormality identification of PA shown in an exemplary embodiment of the present application.
  • FIG. 10 shows a structural block diagram of a cell camping device provided by an embodiment of the present application.
  • Fig. 11 shows a schematic structural diagram of a terminal provided by an exemplary embodiment of the present application.
  • the cell camping method shown in this application is applied to the communication system shown in FIG. 1 , and the communication system includes a first terminal 11 , a network device 12 and a second terminal 13 .
  • the first terminal 11 and the second terminal 13 may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices, Internet of Things devices or other processing devices connected to wireless modems, as well as various forms of user Equipment, mobile station (Mobile Station, MS), terminal (terminal device) and so on.
  • terminals For convenience of description, the devices mentioned above are collectively referred to as terminals.
  • the network device 12 may be a base station, and the base station is a device deployed in an access network to provide wireless communication functions for terminals.
  • the base station may include various forms of macro base stations, micro base stations, relay stations, access points and so on.
  • the names of devices with base station functions may be different.
  • LTE Long Term Evolution, long-term evolution technology
  • eNodeB Long Term Evolution, long-term evolution technology
  • gNodeB New Radio in Unlicensed Spectrum, unlicensed frequency band new air interface
  • the description "base station” may change.
  • the foregoing devices that provide wireless communication functions for terminals are collectively referred to as network devices.
  • the area covered by the signal of the network device 12 is called a cell, and the first terminal 11 and the second terminal 13 in the cell can communicate with the network device 12 through a wireless channel.
  • operators will not only deploy cells with a single frequency band in a certain area.
  • Uu User to Network interface-Universal, Universal User Network Interface
  • the first terminal 11 and the second terminal 13 communicate with each other through a certain communication technology.
  • the communication between the first terminal 11 and the second terminal 13 may be performed through Bluetooth or WiFi technology.
  • the first terminal 11 and the second terminal 13 support device-to-device (Device to Device, D2D) communication, and sidelink (sidelink) communication can be performed between the first terminal 11 and the second terminal 13 through the PC-5 interface .
  • D2D Device to Device
  • sidelink (sidelink) communication can be performed between the first terminal 11 and the second terminal 13 through the PC-5 interface .
  • the sidelink communication implements addressing through the source identifier and destination identifier of the Media Access Control (MAC) layer, that is, no connection needs to be established before the communication.
  • MAC Media Access Control
  • GSM Global System of Mobile Communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • LTE-A Advanced Long Term Evolution
  • NR New Radio
  • evolution system of NR system LTE on unlicensed frequency band (LTE-based access to Unlicensed spectrum, LTE-U) system, NR-U system, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, Next-generation communication system or other communication systems, etc.
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • FIG. 2 shows a flow chart of a cell camping method provided by an exemplary embodiment of the present application.
  • This embodiment uses the terminal in the communication system shown in FIG. 1 as an example for illustration.
  • the method include:
  • Step 210 determine the abnormal PA based on the signal transmission power, wherein at least two PAs are set in the terminal, and different PAs are used to perform power amplification processing on signals in different frequency bands.
  • the power amplifier (Power Amplifier, PA) is a pre-amplification circuit for the terminal to amplify the voltage of small signals.
  • the terminal will contain different types of PAs according to the supported frequency bands.
  • the PA amplifies the signal power of the terminal and then sends it to the network device through the antenna, thereby realizing the communication between the terminal and the network device.
  • the terminal selects the corresponding PA to use according to the frequency band of the cell where it resides. If the PA of the corresponding frequency band is abnormal, the signal transmission power of the terminal will be weakened, and the network equipment cannot monitor the signal power sent by the corresponding frequency band, resulting in the terminal being in no service. Therefore, you can monitor whether the PA is normal by monitoring the signal transmission power.
  • the frequency band is divided into three frequency bands A, B, and C according to frequency, and each frequency band corresponds to a corresponding PA.
  • Each frequency band can be divided into several sub-frequency bands.
  • the frequency bands are divided into low frequency bands, medium and high frequency bands, and high frequency bands according to the frequency.
  • the terminal is equipped with 4 PAs, which are a low-frequency PA, two medium-high frequency PA1 and PA2, and a high-frequency PA, and each PA corresponds to a corresponding frequency band.
  • the low-frequency band, mid-high frequency band, and high-frequency band are further divided into several sub-bands.
  • PA type Corresponding frequency band low frequency PA NR, N28, LTE B5/8... Medium and high frequency PA1 NR, N1/3/7..., LTE B1/3/4... Medium and high frequency PA2 NR, N41, LTE-B41 HF PA NR, N78
  • step 220 the frequency band corresponding to the abnormal PA is determined as a forbidden frequency band.
  • the terminal blacklists the frequency band corresponding to the abnormal PA, that is, determines it as a forbidden frequency band, and the terminal will not camp in a cell of the forbidden frequency band.
  • all frequency bands corresponding to the abnormal PA are determined as forbidden frequency bands.
  • the terminal determines all frequency bands NR, N28, LTE B5/8... corresponding to the low-frequency PA as prohibited frequency bands, instead of only prohibiting specific sub-frequency bands in the low-frequency PA , such as disabling the NR band.
  • Step 230 performing cell camping based on the forbidden frequency band, wherein the frequency band of the cell where the terminal camps does not belong to the forbidden frequency band.
  • the operator's network deployment in a certain area will not only deploy cells with a single frequency band. Therefore, according to the signal transmission power, it is determined that a certain PA is abnormal, and after the frequency band corresponding to the abnormal PA is determined as a forbidden frequency band, the terminal will choose to reside in a cell in another frequency band, so as to avoid the terminal being in a state of no service for a long time, thereby affecting the user of the terminal Normal operation of essential business.
  • the terminal determines the abnormal PA through the signal transmission power, disables the frequency band corresponding to the abnormal PA, and then selects a cell outside the forbidden frequency band.
  • the terminal determines the abnormal PA and disables the frequency band corresponding to the abnormal PA, which can prevent the signal transmission power of the terminal from being weakened due to the abnormal PA, and the network equipment cannot monitor the signal of the terminal for a long time;
  • the terminal in order to avoid co-channel interference, An operator's network deployment in a certain area will not only deploy a single frequency band, so the terminal disables the frequency band corresponding to the abnormal PA and chooses to reside in a cell in another frequency band, which can prevent the terminal from being in a no-service state for a long time due to abnormal PA and improve PA Availability of terminal communication services under abnormal conditions.
  • determining the abnormal PA based on the signal transmission power includes:
  • the abnormal PA is determined based on the number of abnormalities.
  • the abnormal times of the PA are updated, including:
  • the current frequency band is the frequency band of the cell where the terminal currently resides
  • the abnormal PA is determined based on the number of abnormalities, including:
  • the PA whose number of abnormalities reaches the first number threshold within the first time period is determined as an abnormal PA.
  • the method also includes:
  • the reset condition includes at least one of restarting the terminal, switching the terminal on and off, and hot swapping the SIM card.
  • the abnormal PA is determined based on the number of abnormalities, including:
  • the PA does not set the historical abnormality flag, and the number of abnormalities of the PA within the second time span reaches the second threshold, the PA is determined to be an abnormal PA, and the historical abnormality flag is used to indicate that there is an unresolved historical abnormality in the PA; set History anomaly identification;
  • the PA is set with a historical abnormal flag, and the number of abnormal times of the PA within the third time period reaches the third time threshold, the PA is determined as an abnormal PA, and the third time period is shorter than the second time period.
  • the method also includes:
  • the historical abnormality identifier of the PA is retained, and the resetting condition includes at least one of terminal restart, terminal power on and off, and SIM card hot swapping.
  • the method also includes:
  • the PA is set with a historical abnormality flag
  • the number of abnormalities of the PA within the second time period does not reach the fourth threshold
  • delete the historical abnormality flag of the PA, and the fourth threshold is less than or equal to the second threshold.
  • obtain the actual signal transmission power of the terminal including:
  • the actual signal transmission power is obtained according to the target cycle.
  • the actual signal transmission power is obtained according to the target period, wherein the terminal reduces the signal transmission power in the screen off state.
  • perform cell camping based on prohibited frequency bands including:
  • the method further includes:
  • the target prompt information is displayed, and the target prompt information is used to prompt abnormal abnormal PAs.
  • the terminal determines the abnormal PA according to the actual signal transmission power and the target signal transmission power.
  • the terminal since the terminal is equipped with multiple PAs, the terminal determines the frequency band of the cell where the terminal resides based on the abnormal signal transmission power, determines the PA through the current frequency band, and then updates the abnormal times of the PAs.
  • FIG. 3 shows a flowchart of a cell camping method provided by another exemplary embodiment of the present application.
  • Step 310 when the terminal is in the power-on state, obtain the actual signal transmission power according to the target cycle; or, when the terminal is in the power-on state and the screen is on, obtain the actual signal transmission power according to the target cycle, wherein, the terminal is in the off-screen state Reduce the signal transmission power in the state.
  • the terminal is in a power-on state, and periodically acquires actual signal transmission power from a terminal log.
  • the terminal being in the power-on state includes two cases in which the terminal is in a screen-on state and in a screen-off state.
  • the terminal will reduce the actual signal transmission power when it is turned on and the screen is off.
  • the purpose is to reduce the power consumption of the terminal and improve the endurance of the terminal.
  • reducing the actual signal transmission power of the terminal will affect abnormal PA accuracy of judgment. Therefore, in order to improve the accuracy of abnormal PA determination, in another possible implementation manner, the terminal is turned on and the screen is on, and the actual signal transmission power of the terminal is periodically obtained from the terminal log. The terminal is turned on and the screen is off, and the actual signal transmission power of the terminal is stopped from the terminal log.
  • the duration of each cycle may be 2s, 3s, 4s, etc., which is not limited in this embodiment of the present application.
  • Step 320 if the power difference between the actual signal transmission power and the target signal transmission power is greater than the difference threshold, determine the current frequency band, where the current frequency band is the frequency band of the cell where the terminal currently resides.
  • the target signal transmission power does not need to be measured, and it is indicated by the network device according to relevant parameters such as path loss.
  • the terminal obtains the actual signal transmission power from the terminal log, calculates the difference between the actual signal transmission power and the target signal transmission power through the processor, and compares the difference with the difference threshold.
  • the terminal determines and records the current resident The frequency band of the cell.
  • the terminal when the power difference between the actual signal transmission power and the target signal transmission power is less than the difference threshold, indicating that the signal transmission power in the target period is normal, the terminal continues to monitor its actual signal transmission power.
  • the difference threshold is a preset value, which may be 5dB, 10dB, or 15dB, which is not limited in this embodiment of the present application.
  • Step 330 update the abnormal times of the PA corresponding to the current frequency band.
  • each PA in the terminal is correspondingly set with a counter, which is used to update the abnormal times of the corresponding PA.
  • the terminal determines and records the frequency band of the cell currently camped on according to the signal transmission power, and determines its corresponding PA based on the frequency band. Increment the counter corresponding to PA in 1.
  • the low-frequency PA 401, medium-high frequency PA1 402, medium-high frequency PA2 403, and high-frequency PA 404 shown in Table 1 are respectively provided with counters 405, 406, 407, and 408.
  • the terminal obtains the actual signal transmission power from the terminal log, and the processor calculates the difference between the terminal's actual signal transmission power and the target signal transmission power and compare the power difference with the difference threshold. If the power difference is greater than 5dB, it is determined that the terminal signal transmission power is abnormal. If the power difference is less than 5dB, the terminal will continue to obtain from the terminal log in the next target period. Actual signal transmission power.
  • the terminal determines that its signal transmission power is abnormal, and determines that the current frequency band is N28 according to the abnormal signal transmission power, and according to the current
  • the corresponding PA determined by the frequency band is the low-frequency PA 401
  • the counter 405 corresponding to the low-frequency PA 401 is updated to 1, and the counters corresponding to the other PAs are still 0.
  • the terminal determines that the signal transmission power is abnormal, and determines the current frequency band as NR according to the abnormal signal transmission power, and determines the corresponding PAs as low frequency PA 401, medium and high frequency PA1 402, medium and high frequency PA2 403 and high frequency according to the current frequency band.
  • Frequency PA 404, the counter 405 corresponding to the above PA is updated to 2, the counter 406 is updated to 1, the counter 407 is updated to 1, and the counter 408 is updated to 1.
  • the corresponding abnormal times of low frequency PA 401, medium and high frequency PA1 402, medium and high frequency PA2 403, and high frequency PA 404 are 1800, 1500, 300 and 2000 respectively.
  • Step 340 determine the abnormal PA based on the abnormal times.
  • the PA when the number of abnormalities of the PA reaches a specific value within a specified period of time, the PA is determined as an abnormal PA.
  • the cause of the abnormal PA may be PA hardware damage, or a temporary failure of the PA.
  • Step 350 Determine the frequency band corresponding to the abnormal PA as a forbidden frequency band.
  • Step 350 is the same as step 220, which will not be repeated in this embodiment of the present application.
  • Step 360 perform at least one of cell selection, cell reselection, or cell switching based on the forbidden frequency band.
  • the terminal after the current frequency band where the terminal is located is disabled due to abnormal PA, the terminal will choose to camp in a cell in another frequency band in order to ensure the normal use of basic services of the terminal.
  • the terminal when it performs cell selection, it first filters the cells whose frequency points belong to the forbidden frequency band, and then performs cell measurement on the filtered cells. If the cell measurement result of a certain cell satisfies the S criterion, Then successfully reside in the cell.
  • the terminal when performing cell reselection in an idle state, the terminal first filters neighboring cells whose frequencies belong to the forbidden frequency band, and then performs cell measurement on the filtered neighboring cells and serving cells. When the measurement result of the neighboring cell satisfies the R criterion, the terminal reselects from the current serving cell to the neighboring cell, thereby completing the cell reselection.
  • the terminal when the terminal performs cell handover in the connected state, it first filters neighboring cells whose frequency bands belong to the prohibited frequency band, and then performs cell measurement on the filtered neighboring cells and serving cells. When the measurement result satisfies the cell switching condition, the terminal reports the measurement result to the network device, and the network device switches the serving cell of the terminal based on the measurement result.
  • the terminal periodically obtains the actual signal transmission power when it is turned on and the screen is on, and determines the abnormal PA according to the difference between the actual signal transmission power and the target signal transmission power, and improves the determination of abnormal PA.
  • the terminal selects a cell of other frequency bands to reside in at least one of the methods of cell selection, cell reselection, or cell switching, so as to avoid the terminal staying in the abnormal PA for a long time. The state of no service.
  • FIG. 5 shows a flowchart of an abnormal PA determination and reset process provided by another exemplary embodiment of the present application.
  • Step 510 acquiring actual signal transmission power of the terminal.
  • step 510 please refer to the implementation manner of step 310, which will not be repeated in this embodiment of the present application.
  • Step 520 Update the abnormal times of the PA based on the actual signal transmission power and the target signal transmission power, and the target signal transmission power is indicated by the network device.
  • step 520 please refer to the implementation manner of steps 320 to 330, which will not be repeated in this embodiment of the present application.
  • step 530 the PA whose abnormal number reaches the first number threshold within the first time period is determined as an abnormal PA.
  • the terminal determines the PA as an abnormal PA if the number of abnormalities of the PA reaches a first number threshold within the first time period.
  • the first duration may be 24 hours, 12 hours, 8 hours, etc., which is not limited in this embodiment of the present application.
  • the first number threshold may be 1800, 2000, or 2500, which is not limited in this embodiment of the present application.
  • the terminal After the terminal determines the abnormal PA, it will display target prompt information on the display screen to remind the user that there is an abnormal PA in the terminal, so that the user can quickly find the abnormal PA when repairing the terminal in the future, reducing the User maintenance costs.
  • the form of the target prompt information may be a reminder box, icon display, etc., which is not limited in this embodiment of the present application.
  • Step 540 if the reset condition is met, reset the abnormal PA to be a normal PA, and unblock the forbidden frequency band.
  • the reset condition may be at least one of terminal restart, terminal power on and off, and SIM card hot swap, which is not limited in the embodiment of the present application.
  • the abnormal PA may return to normal under certain circumstances (it may be that the abnormal PA is replaced or the abnormal PA automatically recovers from the abnormality), when the user performs any of the above reset conditions on the terminal, the terminal will disable the frequency band Unbanning processing is performed, and the abnormal PA is set as a normal PA, so as to avoid that the corresponding frequency band is still disabled when the abnormal PA returns to normal.
  • the terminal unblocking the forbidden frequency band may be removing the forbidden frequency band from the blacklist of the terminal. Subsequently, the terminal can normally camp on the cell corresponding to this frequency band.
  • setting the abnormal PA to normal may be that the PA is damaged by the hardware, and the terminal judges it as an abnormal PA. After the terminal is reset, the abnormal PA does not return to normal, but the terminal defaults it to normal. state.
  • setting the abnormal PA as normal may mean that the PA hardware is not damaged, and the terminal judges it as an abnormal PA due to a temporary failure of the PA, and after the terminal is reset, the abnormal PA returns to normal.
  • a terminal is provided with a low-frequency PA, a medium-high frequency PA1, a medium-high frequency PA2, and a high-frequency PA, and each PA corresponds to a corresponding counter, which is used to update the number of abnormalities of the PA.
  • Set the first duration as 24 hours, and the first threshold as 1800.
  • the terminal obtains the actual signal transmission power from the terminal log every 2s, calculates the power difference between the actual signal transmission power of the terminal and the target signal transmission power through the processor, compares the power difference with the difference threshold, and updates the current frequency band corresponding The abnormal number of PA.
  • the number of abnormalities of the low-frequency PA is 1800
  • the number of abnormalities of the medium and high-frequency PA1 is 1500
  • the number of abnormalities of the high-frequency PA2 is 300
  • the number of abnormalities of the high-frequency PA is 1300. It can be seen that the number of abnormalities of the low-frequency PA reaches the first number threshold of 1800, so the terminal determines the low-frequency PA as an abnormal PA, and disables all frequency bands corresponding to the low-frequency PA in Table 1.
  • the terminal After the terminal is restarted, turned on and off, or the SIM card is hot-swapped, the terminal sets the low-frequency PA as a normal PA, unlocks all frequency bands corresponding to the low-frequency PA, and clears the counters corresponding to each PA.
  • the terminal will determine the PA as an abnormal PA, and will remind the user of the abnormal PA in the form of target prompt information, which is convenient for the user to maintain in the future
  • the abnormal PA can be quickly found at the terminal, reducing the maintenance cost of the user.
  • the terminal resets the abnormal PA to a normal PA, and unbans the corresponding forbidden frequency band, so as to prevent the abnormal PA from returning to normal, and the corresponding frequency band is still in the forbidden state, and then the cell resident stay impacted.
  • the terminal After the above-mentioned terminal determines that the PA whose number of abnormal times reaches the first number threshold within the first period of time is an abnormal PA, it does not mark the abnormal PA. After the terminal is reset, the terminal sets the abnormal PA as a normal PA, but the PA’s The abnormal state is not really eliminated, and the terminal needs to re-execute the judgment, which may cause the terminal to fall into a no-service state again. Therefore, in another possible implementation, the terminal will mark the PA with abnormal history. When the terminal needs to re-judgment When the PA is abnormal, the time for judging can be shortened (simplifying the judging process of the abnormal PA), thereby reducing the time for the terminal to fall into the no-service state. Please refer to FIG. 7 , which shows a flow chart of an abnormal PA determination process provided by another exemplary embodiment of the present application.
  • Step 710 acquiring actual signal transmission power of the terminal.
  • step 710 please refer to the implementation manner of step 310, which will not be repeated in this embodiment of the present application.
  • Step 720 Update the abnormal times of the PA based on the actual signal transmission power and the target signal transmission power, and the target signal transmission power is indicated by the network device.
  • step 720 please refer to the implementation manner of step 320 to step 330, which will not be repeated in this embodiment of the present application.
  • Step 730 in the case that the PA does not have a historical abnormal flag set, and the number of PA abnormalities within the second time period reaches the second threshold, determine the PA as an abnormal PA, and the historical abnormal flag is used to indicate that there is an unresolved historical abnormality in the PA; Set the history exception flag for PA.
  • the terminal detects whether the PA has set a historical abnormal flag while determining the number of PA abnormalities. If the terminal determines that the PA has not set a historical abnormal flag, within the second time period, the number of PA abnormalities reaches the second time. threshold, the terminal determines the PA as an abnormal PA, and sets a history abnormal flag for the PA.
  • the second duration may be 12 hours, 20 hours, 24 hours, etc., which is not limited in this embodiment of the present application.
  • the second times threshold may be 1500, 2000, or 2500. This is not limited in this embodiment of the present application.
  • the historical anomaly identifier may be an identification code, an identification code, etc. set on the PA, which is not limited in this embodiment of the present application.
  • the low-frequency PA, medium-high frequency PA1, medium-high frequency PA2, and high-frequency PA set in a certain terminal do not have history abnormal flags set.
  • the preset difference threshold is 10dB
  • the second times threshold is 1500
  • the second duration is 12 hours.
  • the terminal obtains the actual signal transmission power every 2s, and calculates the difference between the actual signal transmission power and the target signal transmission power. When the difference between the actual signal transmission power and the target signal transmission power is greater than the difference threshold 10 dB, it is determined that the signal transmission power is abnormal once.
  • the current frequency band is determined according to the abnormality of the signal transmission power, and the number of PA abnormalities corresponding to the current frequency band is updated through the counters corresponding to the above-mentioned PAs. Up to 12 hours, from the counters corresponding to the above PAs, it can be seen that the number of abnormalities of the low-frequency PA is 1800, the number of abnormalities of the medium-high frequency PA1 is 1000, the number of abnormalities of the medium-high frequency PA2 is 300, and the number of abnormalities of the high-frequency PA is 1500. The abnormal times of the low-frequency PA and the abnormal times of the high-frequency PA reach the second threshold of 1500, so the terminal determines the low-frequency PA and the high-frequency PA as abnormal PAs.
  • the abnormal PA is provided with an identification code, the length of which is 1 bit, and is used to indicate the historical abnormal identification of the PA.
  • the identification codes of the low-frequency PA and the high-frequency PA are displayed as 1, which indicates that the low-frequency PA and the high-frequency PA have history abnormal marks, and the medium-high frequency PA1 and the medium-high frequency PA2 are parallel. History exception flag not set.
  • Step 740 In the case that the PA is set with a historical abnormality flag, and the number of abnormalities of the PA within the third time period reaches the third number threshold, determine the PA as an abnormal PA, and the third time period is shorter than the second time period.
  • the process of determining the abnormal PA may be simplified by shortening the time for determining the number of PA abnormalities, thereby reducing the calculation amount of the terminal. Therefore, the third duration needs to be shorter than the second duration. Exemplarily, if the second duration is 12 hours, the third duration may be 10 hours, 8 hours, or 6 hours, etc., which is not limited in this embodiment of the present application.
  • the second time threshold is not directly related to the third time threshold, and the two may be the same or different.
  • the third duration is shortened, and the third time threshold corresponding to the third time length may be reduced. May also be unchanged.
  • the terminal detects that the identification codes of the medium and high frequency PA1 and the high frequency PA are 1, it means that the medium and high frequency PA1 and the high frequency PA are set with historical abnormality flags. Therefore, in order to reduce the calculation amount of the terminal, shorten the time for determining the number of PA abnormalities , so compared to the above-mentioned second duration, the third duration is 6 hours.
  • the preset difference threshold is 10dB, and the third times threshold is 1000 times.
  • the terminal obtains the actual signal transmission power from the terminal log every 2s, calculates the power difference between the actual signal transmission power of the terminal and the target signal transmission power through the processor, compares the power difference with the difference threshold, and updates the current frequency band corresponding The abnormal number of PA.
  • the number of abnormalities of the low-frequency PA is 900
  • the number of abnormalities of the medium-high frequency PA1 is 1000
  • the number of abnormalities of the high-frequency PA2 is 300
  • the number of abnormalities of the high-frequency PA is 1200.
  • the abnormal times of the mid-high frequency PA1 and the abnormal times of the high-frequency PA reach the third frequency threshold, and the terminal determines the mid-high frequency PA1 and the high-frequency PA as abnormal PAs.
  • Step 750 if the reset condition is met, reset the abnormal PA to a normal PA, and unblock the forbidden frequency band.
  • the terminal After the user performs a reset operation on the terminal, the terminal will unban the disabled frequency band and set the abnormal PA as a normal PA. After the reset, the historical abnormal identification of the PA still remains.
  • the terminal determines the abnormal PA again, when the terminal detects the PA with the historical abnormal flag set, the process of determining the abnormal PA can be simplified, thereby reducing the calculation amount of the terminal.
  • the terminal sets the low-frequency PA and high-frequency PA as normal PAs, and unlocks all frequency bands corresponding to the low-frequency PA and high-frequency PA , but the historical abnormal flags of low-frequency PAs and high-frequency PAs are still retained, and the counters corresponding to each PA are cleared.
  • Step 760 in the case that the PA is set with a historical abnormal flag, and the number of abnormal times of the PA within the second time period does not reach the fourth threshold, delete the historical abnormal flag of the PA, and the fourth threshold is less than or equal to the second threshold.
  • the reasons for the abnormality of the PA may be: first, the PA hardware itself is damaged, causing the abnormality of the PA; second, the temporary failure of the PA causes the abnormality of the PA. No matter what causes the PA abnormality, when the terminal detects the PA abnormality, it will set the historical abnormality flag on the PA. However, the abnormal PA caused by the transient failure of the PA will automatically recover after a period of time, and the foregoing method will affect the accuracy of determining the abnormal PA by the terminal. Therefore, in the embodiment of the present application, the fourth times threshold is preset.
  • the terminal when the terminal detects that the PA is set with a historical abnormal flag, if the number of PA abnormalities does not reach the fourth value threshold within the second period of time, it indicates that the PA has returned to normal (the PA abnormality may be caused by PA caused by transient failure, or the abnormal PA has been replaced), at this time, the terminal deletes the historical abnormality flag of the PA.
  • the fourth count threshold may be 1800, or may be 500, 400, etc., which is not limited in this embodiment of the present application.
  • the terminal detects that the low-frequency PA and the high-frequency PA are set with identification codes, indicating that the low-frequency PA and the high-frequency PA are set with historical abnormality flags.
  • the second threshold is 1500
  • the second duration is 12 hours
  • the difference threshold is 10dB
  • the fourth threshold is smaller than the second threshold, so the fourth threshold is 800.
  • each PA The corresponding counters show that the number of abnormalities of the low-frequency PA is 1500, the number of abnormalities of the mid-high frequency PA1 is 1000, the number of abnormalities of the high-frequency PA2 is 800, and the number of abnormalities of the high-frequency PA is 700.
  • the number of abnormalities of the high-frequency PA does not reach the fourth threshold of 800, so it can be known that the high-frequency PA has returned to normal, and the terminal deletes the historical abnormality flag of the high-frequency PA.
  • a historical abnormal flag is set for a PA with an abnormal history.
  • the process of determining an abnormal PA when the terminal detects that the PA has a historical abnormal flag set, the process of determining an abnormal PA by the terminal is simplified. , to reduce the calculation amount of the terminal.
  • FIG. 10 shows a structural block diagram of a cell camping device provided by an embodiment of the present application.
  • the device is capable of implementing the functions performed by the first terminal in the above method embodiments, and the functions may be implemented by hardware, or may be implemented by hardware executing corresponding software.
  • the device may include:
  • the first determining module 1001 is configured to determine abnormal PAs based on signal transmission power, wherein at least two PAs are set in the terminal, and different PAs are used to perform power amplification processing on signals in different frequency bands;
  • the second determination module 1002 is configured to determine the frequency band corresponding to the abnormal PA as a forbidden frequency band
  • the cell camping module 1003 is configured to perform cell camping based on the forbidden frequency band, wherein the frequency band of the cell where the terminal camps does not belong to the forbidden frequency band.
  • the first determining module 1001 is further configured to:
  • the abnormal PA is determined based on the abnormal number of times.
  • the first determining module 1001 is further configured to:
  • the difference threshold determines a current frequency band, where the current frequency band is the frequency band of the cell where the terminal currently resides;
  • the first determining module 1001 is further configured to:
  • the PA whose abnormal number reaches a first number threshold within the first time period is determined as the abnormal PA.
  • the device also includes a first reset module, configured to:
  • the reset condition includes at least one of restarting the terminal, switching the terminal on and off, and hot swapping the SIM card.
  • the first determining module 1001 is further configured to:
  • the PA does not set a historical abnormality flag, and the number of abnormalities of the PA within the second time period reaches the second threshold, the PA is determined as the abnormal PA, and the historical abnormality flag is used to characterize the PA. There is an unresolved historical anomaly in the PA; set the historical anomaly flag for the PA;
  • the PA When the PA is set with the historical abnormality flag, and the number of abnormalities of the PA within the third time period reaches a third threshold, the PA is determined as the abnormal PA, and the third time period is less than the specified time period. State the second duration.
  • the device also includes a second reset module, configured to:
  • the historical abnormality flag of the PA is retained after reset, and the reset condition includes at least one of terminal restart, terminal power on and off, and SIM card hot swap.
  • the device also includes a deletion module, configured to:
  • the historical abnormality flag of the PA is deleted, and the fourth The times threshold is less than or equal to the second times threshold.
  • the first determining module 1001 is further configured to:
  • the terminal In the case that the terminal is turned on and the screen is on, the actual signal transmission power is acquired according to the target period, wherein the terminal reduces the signal transmission power in the screen off state.
  • the cell camping module 1003 is configured to:
  • the device further includes:
  • a display module configured to display target prompt information, where the target prompt information is used to prompt the abnormal PA.
  • the terminal determines the abnormal PA through the signal transmission power, and disables the frequency band corresponding to the abnormal PA, and then selects to reside in a cell outside the prohibited frequency band.
  • the terminal determines the abnormal PA and disables the frequency band corresponding to the abnormal PA, which can prevent the signal transmission power of the terminal from being weakened due to the abnormal PA, and the network equipment cannot monitor the signal of the terminal for a long time; on the other hand, in order to avoid co-channel interference, An operator's network deployment in a certain area will not only deploy a single frequency band, so the terminal disables the frequency band corresponding to the abnormal PA and chooses to reside in a cell in another frequency band, which can prevent the terminal from being in a no-service state for a long time due to abnormal PA and improve PA Availability of terminal communication services under abnormal conditions.
  • FIG. 11 shows a schematic structural diagram of a terminal (a first terminal or a second terminal) provided by an exemplary embodiment of the present application.
  • the terminal includes: a processor 1101 , a receiver 1102 , a transmitter 1103 , a memory 1104 and a bus 1105 .
  • the processor 1101 includes one or more processing cores, and the processor 1101 executes various functional applications and information processing by running software programs and modules.
  • the receiver 1102 and the transmitter 1103 can be implemented as a communication component, which can be a communication chip.
  • the memory 1104 is connected to the processor 1101 through the bus 1105 .
  • the memory 1104 may be used to store at least one instruction, and the processor 1101 is used to execute the at least one instruction, so as to implement various steps in the foregoing method embodiments.
  • volatile or non-volatile storage device includes but not limited to: magnetic disk or optical disk, electrically erasable and programmable Read Only Memory (Erasable Programmable Read Only Memory, EEPROM), Erasable Programmable Read Only Memory (EPROM), Static Random Access Memory (SRAM), Read Only Memory (Read -Only Memory, ROM), magnetic memory, flash memory, programmable read-only memory (Programmable Read-Only Memory, PROM).
  • volatile or non-volatile storage device includes but not limited to: magnetic disk or optical disk, electrically erasable and programmable Read Only Memory (Erasable Programmable Read Only Memory, EEPROM), Erasable Programmable Read Only Memory (EPROM), Static Random Access Memory (SRAM), Read Only Memory (Read -Only Memory, ROM), magnetic memory, flash memory, programmable read-only memory (Programmable Read-Only Memory, PROM).
  • the embodiment of the present application also provides a computer-readable storage medium, the computer-readable storage medium stores at least one program code, and the program code is loaded and executed by a processor to realize the cell camping described in the above embodiments method.
  • a computer program product comprising computer instructions stored in a computer readable storage medium.
  • the processor of the computer device reads the computer instruction from the computer-readable storage medium, and the processor executes the computer instruction, so that the computer device executes the cell camping method provided in various optional implementation manners of the foregoing aspects.
  • the "plurality” mentioned herein refers to two or more than two.
  • “And/or” describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B may indicate: A exists alone, A and B exist simultaneously, and B exists independently.
  • the character "/” generally indicates that the contextual objects are an "or” relationship.
  • the numbering of the steps described herein only exemplarily shows a possible sequence of execution among the steps. In some other embodiments, the above-mentioned steps may not be executed according to the order of the numbers, such as two different numbers The steps are executed at the same time, or two steps with different numbers are executed in the reverse order as shown in the illustration, which is not limited in this embodiment of the present application.

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Abstract

一种小区驻留方法、装置、终端及存储介质，属于通信技术领域。该方法包括：基于信号发射功率确定异常PA，其中，终端中设置有至少两个PA，且不同PA用于对不同频段的信号进行功率放大处理(210)；将异常PA对应的频段确定为禁用频段(220)；基于禁用频段进行小区驻留，其中，终端所驻留小区的频段不属于禁用频段(230)。采用本申请实施例提供的方案可以提高PA异常情况下终端通信业务的可用性。

Description

小区驻留方法、装置、终端及存储介质
本申请要求于2021年10月08日提交的申请号为202111171973.8、发明名称为“小区驻留方法、装置、终端及存储介质”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及通信技术领域，特别涉及一种小区驻留方法、装置、终端及存储介质。
背景技术
功率放大器(Power Amplifier，PA)是终端设备对小信号进行电压放大的前级放大电路。
相关技术中，当PA出现异常(例如老化、损坏)时，终端驻留到异常PA所对应的频段，导致功率无法输出，从而出现通话无声，数据业务等基本功能无法使用的情况。面对上述情况，用户只能去售后选择更换主板进行修复。然而，用户通过更换主板修复异常PA，不仅增加维修成本，而且也缩短了终端的使用寿命。
发明内容
本申请实施例提供了一种小区驻留方法、装置、终端及存储介质，能够避免异常PA导致终端信号发射功率不足从而影响终端业务，所述技术方案如下：
一方面，本申请实施例提供一种小区驻留方法，所述方法包括：
基于信号发射功率确定异常PA，其中，终端中设置有至少两个PA，且不同PA用于对不同频段的信号进行功率放大处理；
将所述异常PA对应的频段确定为禁用频段；
基于所述禁用频段进行小区驻留，其中，所述终端所驻留小区的频段不属于所述禁用频段。
另一方面，本申请实施例提供一种小区驻留装置，所述装置包括：
第一确定模块，用于基于信号发射功率确定异常PA，其中，终端中设置有至少两个PA，且不同PA用于对不同频段的信号进行功率放大处理；
第二确定模块，用于将所述异常PA对应的频段确定为禁用频段；
小区驻留模块，用于基于所述禁用频段进行小区驻留，其中，所述终端所驻留小区的频段不属于所述禁用频段。
另一方面，本申请实施例提供了一种终端，所述终端包括处理器和存储器，所述存储器中存储有至少一段程序，所述至少一段程序由所述处理器加载并执行以实现如上述方面所述的小区驻留方法。
另一方面，本申请实施例提供了一种计算机可读存储介质，所述计算机可读 存储介质中存储有至少一段程序，所述一段程序由处理器加载并执行以实现如上述方面所述的小区驻留方法。
另一方面，本申请实施例提供了一种计算机程序产品，该计算机程序产品包括计算机指令，该计算机指令存储在计算机可读存储介质中。计算机设备的处理器从计算机可读存储介质读取该计算机指令，处理器执行该计算机指令，使得该终端执行上述方面的小区驻留方法。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请一个示例性实施例提供的通信系统的系统架构图；
图2示出了本申请一个示例性实施例提供的小区驻留方法的流程图；
图3示出了本申请另一个示例性实施例提供的小区驻留方法的流程图；
图4示出了本申请一个示例性实施例示出的更新PA异常次数的过程示意图；
图5示出了本申请一个示例性实施例提供的异常PA确定以及重置过程的流程图；
图6示出了本申请一个示例性实施例提供的异常PA确定以及重置过程的示意图；
图7示出了本申请另一个示例性实施例提供的异常PA确定过程的流程图；
图8示出了本申请一个示例性实施例示出的为PA设置历史异常标识的过程示意图；
图9示出了本申请一个示例性实施例示出的删除PA的历史异常标识的过程示意图；
图10示出了本申请一个实施例提供的小区驻留装置的结构框图；
图11示出了本申请一个示例性实施例提供的终端的结构示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施方式作进一步地详细描述。
本申请示出的小区驻留方法应用于如图1所示的通信系统中，该通信系统包括第一终端11、网络设备12和第二终端13。
第一终端11和第二终端13可以包括各种具有无线通信功能的手持设备、车载设备、可穿戴设备、计算设备、物联网设备或连接到无线调制解调器的其他处理设备，以及各种形式的用户设备，移动台(Mobile Station，MS)，终端(terminal device)等等。为方便描述，上面提到的设备统称为终端。
网络设备12可以是基站，所述基站是一种部署在接入网中用以为终端提供 无线通信功能的装置。基站可以包括各种形式的宏基站，微基站，中继站，接入点等等。在采用不同的无线接入技术的系统中，具备基站功能的设备的名称可能会有所不同，例如在LTE(Long Term Evolution，长期演进技术)系统中，称为eNodeB或者eNB；在5G NR-U(New Radio in Unlicensed Spectrum，非授权频段新空口)系统中，称为gNodeB或者gNB。随着通信技术的演进，“基站”这一描述可能会变化。为方便本申请实施例中，上述为终端提供无线通信功能的装置统称为网络设备。
网络设备12的信号所能覆盖的范围称为小区，小区内第一终端11、第二终端13可以通过无线信道与网络设备12进行通信。为了防止同频干扰，运营商在某一片区域不会只布局单一频段小区。
本申请实施例中，第一终端11与网络设备12之间，第二终端13与网络设备12之间通过某种空口技术互相通信，例如Uu(User to Network interface-Universal，通用用户网络接口)接口。
在一些实施例中，第一终端11与第二终端13之间通过某种通信技术互相通信。可选的，第一终端11与第二终端13之间可以通过蓝牙或WiFi技术进行通信。或者，第一终端11和第二终端13支持设备到设备(Device to Device，D2D)通信，第一终端11与第二终端13之间可以通过PC-5接口进行侧行链路(sidelink)通信。其中，侧行链路通信通过媒体访问控制(Media Access Control，MAC)层的源标识和目的标识来实现寻址，即在通信之前无需建立连接。
本申请实施例的技术方案可以应用于各种通信系统，例如：全球移动通讯(Global System of Mobile Communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution，LTE)系统、LTE频分双工(Frequency Division Duplex，FDD)系统、LTE时分双工(Time Division Duplex，TDD)系统、先进的长期演进(Advanced Long Term Evolution，LTE-A)系统、新无线(New Radio，NR)系统、NR系统的演进系统、非授权频段上的LTE(LTE-based access to Unlicensed spectrum，LTE-U)系统、NR-U系统、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access，WiMAX)通信系统、下一代通信系统或其他通信系统等。
请参考图2，其示出了本申请一个示例性实施例提供的小区驻留方法的流程图，本实施例以该方法用于图1所示通信系统中的终端为例进行说明，该方法包括：
步骤210，基于信号发射功率确定异常PA，其中，终端中设置有至少两个PA，且不同PA用于对不同频段的信号进行功率放大处理。
功率放大器(Power Amplifier，PA)是终端对小信号进行电压放大的前级放大电路。终端会根据支持频段的不同，包含不同类型的PA，PA将终端的信号功 率放大后再经由天线发送给网络设备，进而实现终端与网络设备的通信。终端根据驻留小区的频段，选择相应PA进行使用，若相应频段的PA出现异常，会导致终端的信号发射功率减弱，网络设备无法监测到相应频段发出的信号功率，因而导致出现终端处于无服务的状态，因此可以通过监控信号发射功率确定PA是否正常。
在一种可能的实施方式中，将频段按照频率高低划分为A、B、C三个频段，每个频段对应相应的PA。每个频段又可以被分成若干的子频段。
示例性的，如表一所示，将频段按照频率高低划分为低频频段、中高频频段、高频频段。表一中终端设置有4个PA，分别是一个低频PA，两个中高频PA1和PA2，一个高频PA，每个PA对应相应的频段。低频频段、中高频频段、高频频段又被分为若干的子频段。
表一
PA类型 对应频段
低频PA NR，N28，LTE B5/8…
中高频PA1 NR，N1/3/7…，LTE B1/3/4…
中高频PA2 NR，N41，LTE B41
高频PA NR，N78
步骤220，将异常PA对应的频段确定为禁用频段。
在一种可能的实施方式中，终端将异常PA对应的频段列入黑名单，即将其确定为禁用频段，终端不会在禁用频段的小区驻留。在一些实施例中，将异常PA对应的所有频段确定为禁用频段。
示例性的，表一中，低频PA被确定为异常PA时，终端将低频PA对应的所有频段NR、N28、LTE B5/8…确定为禁用频段，而非仅禁用低频PA中具体的子频段，例如禁用NR频段。
步骤230，基于禁用频段进行小区驻留，其中，终端所驻留小区的频段不属于禁用频段。
在一种可能的实施方式中，为了预防同频干扰等问题，运营商在某一片区的布网不会只布局单一频段小区。因此根据信号发射功率确定某一PA异常，将该异常PA对应的频段确定为禁用频段后，终端会选择在其他频段的小区驻留，避免终端长时间处于无服务的状态，从而影响终端的用户基本业务的正常运行。
综上所述，本申请实施例中，终端通过信号发射功率确定异常PA，并禁用异常PA对应的频段，进而选择驻留在禁用频段以外的小区。一方面，终端确定异常PA并禁用异常PA对应的频段，能够避免终端因异常PA导致信号发射功率减弱，网络设备长时间监测不到终端的信号的情况；另一方面，为了避免同频干扰，运营商在某一片区的布网不会只布局单一频段，因此终端禁用异常PA对应的频段，选择在其他频段的小区驻留，能够避免终端因异常PA造成长时间处于无服务状态，提高PA异常情况下终端通信业务的可用性。
可选的，基于信号发射功率确定异常PA，包括：
获取终端的实际信号发射功率；
基于实际信号发射功率以及目标信号发射功率，更新PA的异常次数，目标信号发射功率由网络设备进行指示；
基于异常次数确定异常PA。
可选的，基于实际信号发射功率以及目标信号发射功率，更新PA的异常次数，包括：
在实际信号发射功率与目标信号发射功率的功率差值大于差值阈值的情况下，确定当前频段，当前频段为终端当前驻留小区的频段；
更新当前频段对应PA的异常次数。
可选的，基于异常次数确定异常PA，包括：
将第一时长内异常次数达到第一次数阈值的PA确定为异常PA。
可选的，方法还包括：
在满足重置条件的情况下，将异常PA重置为正常PA，以及对禁用频段进行解禁处理；
其中，重置条件包括终端重启、终端开关机以及SIM卡热插拔中的至少一种。
可选的，基于异常次数确定异常PA，包括：
在PA未设置历史异常标识的情况下，且第二时长内PA的异常次数达到第二次数阈值，将PA确定为异常PA，历史异常标识用于表征PA存在未消除的历史异常；为PA设置历史异常标识；
在PA设置有历史异常标识的情况下，且第三时长内PA的异常次数达到第三次数阈值，将PA确定为异常PA，第三时长小于第二时长。
可选的，方法还包括：
在满足重置条件的情况下，将异常PA重置为正常PA，以及对禁用频段进行解禁处理；
其中，重置后PA的历史异常标识保留，重置条件包括终端重启、终端开关机以及SIM卡热插拔中的至少一种。
可选的，方法还包括：
在PA设置有历史异常标识的情况下，且第二时长内PA的异常次数未达到第四次数阈值，删除PA的历史异常标识，第四次数阈值小于或等于第二次数阈值。
可选的，获取终端的实际信号发射功率，包括：
在终端处于开机状态的情况下，按照目标周期获取实际信号发射功率；或，
在终端处于开机且亮屏状态的情况下，按照目标周期获取实际信号发射功率，其中，终端在熄屏状态下降低信号发射功率。
可选的，基于禁用频段进行小区驻留，包括：
基于禁用频段进行小区选择、小区重选或小区切换中的至少一种。
可选的，在基于信号发射功率确定异常PA之后，方法还包括：
显示目标提示信息，目标提示信息用于提示存在异常的异常PA。
本申请实施例中，终端通过实际信号发射功率与目标信号发射功率确定异常PA。另外由于终端设置有多个PA，终端通过信号发射功率异常确定当前终端驻留小区频段，通过当前频段确定PA，进而更新PA的异常次数。请参考图3，其中示出了本申请另一个示例性实施例提供的小区驻留方法的流程图。
步骤310，在终端处于开机状态的情况下，按照目标周期获取实际信号发射功率；或，在终端处于开机且亮屏状态的情况下，按照目标周期获取实际信号发射功率，其中，终端在熄屏状态下降低信号发射功率。
在一种可能的实施方式中，终端处于开机状态，周期性的从终端日志中获取实际信号发射功率。其中，终端处于开机状态包括终端处于亮屏状态以及处于熄屏状态两种情况。
在上述可能的实施方式中，终端在开机且熄屏状态下会降低实际信号发射功率，其目的是减少终端的耗电量，提高终端的续航能力，但是终端降低实际信号发射功率会影响异常PA判定的准确性。因此为了提高异常PA判定的准确性，在另一种可能的实施方式中，终端处于开机且亮屏状态，周期性的从终端日志中获取终端的实际信号发射功率。终端处于开机且熄屏状态，停止从终端日志中获取终端的实际信号发射功率。
可选地，每个周期时长可以为2s、3s、4s等，本申请实施例对此不进行限定。
步骤320，在实际信号发射功率与目标信号发射功率的功率差值大于差值阈值的情况下，确定当前频段，当前频段为终端当前驻留小区的频段。
在本申请实施例中，目标信号发射功率无需通过测量，其由网络设备根据路损等相关参数进行指示。每个目标周期，终端从终端日志中获取实际信号发射功率，通过处理器计算出实际信号发射功率与目标信号发射功率的差值，将差值与差值阈值进行比较。
在一种可能的实施方式中，当实际信号发射功率与目标信号发射功率的功率差值大于差值阈值，表明该目标周期内信号发射功率异常，终端根据该信号发射功率确定并记录当前驻留小区的频段。
在另一种可能的实施方式中，当实际信号发射功率与目标信号发射功率的功率差值小于差值阈值表明该目标周期内信号发射功率正常，终端继续监控其实际信号发射功率。
可选地，差值阈值是提前预设的数值，其可以是5dB、10dB、15dB，本申请实施例对此不进行限定。
步骤330，更新当前频段对应PA的异常次数。
在一种可能的实施方式中，终端中每个PA对应设置一个计数器，用于更新相应PA的异常次数。每个目标周期，当实际信号发射功率与目标信号发射功率的功率差值大于差值阈值，终端根据该信号发射功率确定并记录当前驻留小区的频段，基于频段确定出其对应的PA，终端中的PA对应的计数器加1。
示例性的，如图4所示，表一中所示的低频PA 401、中高频PA1 402、中高频PA2 403以及高频PA 404分别对应设置有计数器405、计数器406、计数器 407、计数器408。
设置目标周期为2s，差值阈值为5dB的情况下，在第一个目标周期内，终端从终端日志中获取实际信号发射功率，通过处理器计算终端的实际信号发射功率与目标信号发射功率的功率差值，并将该功率差值与差值阈值比较，若功率差值大于5dB，则判定终端信号发射功率异常，若功率差值小于5dB，则终端在下一个目标周期继续从终端日志中获取实际信号发射功率。
在第一个目标周期，终端的实际信号发射功率与目标信号发射功率的功率差值大于5dB的情况下，终端判定其信号发射功率异常，根据异常的信号发射功率确定当前频段为N28，根据当前频段确定出对应的PA为低频PA401，低频PA401对应的计数器405更新为1，其余PA对应的计数器仍为0。第二个目标周期，终端判定出信号发射功率异常，根据异常的信号发射功率确定当前频段为NR，根据当前频段确定出对应的PA为低频PA 401、中高频PA1 402、中高频PA2 403以及高频PA 404，上述PA对应的计数器405更新为2、计数器406更新为1、计数器407更新为1、计数器408更新为1。按照上述的方法更新当前频段PA的异常次数，经过数个目标周期，低频PA 401、中高频PA1 402、中高频PA2 403、高频PA 404对应的异常次数分别为1800、1500、300以及2000。
步骤340，基于异常次数确定异常PA。
在一种可能的实施方式中，规定时长内，在PA的异常次数达到特定的值的情况下，将该PA确定为异常PA。
在一种可能的实施方式中，导致异常PA的原因可能是PA硬件损害，也可能是PA短暂性失效。
步骤350，将异常PA对应的频段确定为禁用频段。
步骤350同步骤220，本申请实施例对此不再赘述。
步骤360，基于禁用频段进行小区选择、小区重选或小区切换中的至少一种。
在本申请实施例中，终端所在的当前频段因PA异常被禁用后，为了保证终端基本业务的正常使用，终端会选择其他频段的小区驻留。
在一种可能的实施方式中，终端进行小区选择时，首先对频点属于该禁用频段的小区进行过滤，然后对过滤后的小区进行小区测量，若某一小区的小区测量结果满足S准则，则成功驻留到该小区。
在另一种可能的实施方式中，终端在空闲状态下进行小区重选时，首先对频点属于该禁用频段的邻小区进行过滤，然后对过滤后的邻小区以及服务小区进行小区测量。当邻小区的测量结果满足R准则时，终端则从当前服务小区重选至该邻小区，从而完成小区重选。
在另一种可能的实施方式中，终端在连接状态下进行小区切换时，首先对频段属于该禁用频段的邻小区进行过滤，然后对过滤后的邻小区以及服务小区进行小区测量。当测量结果满足小区切换条件时，终端向网络设备上报测量结果，由网络设备基于测量结果对终端的服务小区进行切换。
综上所述，在本申请实施例中，终端在开机且亮屏状态周期性的获取实际信号发射功率，并根据实际信号发射功率和目标信号发射功率的差值判定异常PA， 提高异常PA判定的准确性；另外，终端禁用异常PA对应的所有频段后，终端通小区选择、小区重选或小区切换中的至少一种方式选择其他频段的小区进行驻留，避免终端因为异常PA长时间处于无服务的状态。
在一种可能的实施方式中，若在规定的时长内，PA异常次数达到次数阈值，则确定该PA为异常PA，当用户对终端进行重置操作后，终端将异常PA重置为正常，终端对禁用频段进行解禁处理。请参考图5，其中示出了本申请另一个示例性实施例提供的异常PA确定以及重置过程的流程图。
步骤510，获取终端的实际信号发射功率。
步骤510请参考步骤310的实施方式，本申请实施例对此不再赘述。
步骤520，基于实际信号发射功率以及目标信号发射功率，更新PA的异常次数，目标信号发射功率由网络设备进行指示。
步骤520请参考步骤320至步骤330的实施方式，本申请实施例对此不再赘述。
步骤530，将第一时长内异常次数达到第一次数阈值的PA确定为异常PA。
在本申请实施例中，在第一时长内，PA的异常次数达到第一次数阈值，则终端将该PA确定为异常PA。
可选地，第一时长可以是24小时、12小时、8小时等，本申请实施例对此不作限定。
可选地，第一次数阈值可以是1800、2000、2500，本申请实施例对此不进行限定。
在一种可能的实施方式中，终端确定异常PA后，会在显示屏界面显示目标提示信息，用于提醒用户终端中存在异常的异常PA，方便用户日后维修终端时能快速找到异常PA，降低用户的维修成本。
可选地，目标提示信息的形式可以是提醒框、图标显示等，本申请实施例对此不作限定。
步骤540，在满足重置条件的情况下，将异常PA重置为正常PA，以及对禁用频段进行解禁处理。
在本申请实施例中，重置条件可以是终端重启、终端开关机以及SIM卡热插拔中的至少一种，本申请实施例对此不作限定。
由于异常PA在某些情况下(可能是更换了异常PA或者异常PA自动从异常中恢复)可能会恢复正常，因此当用户对终端执行上述重置条件中任意一种操作后，终端将禁用频段进行解禁处理，将异常PA设置为正常PA，避免因异常PA恢复正常时，其对应的频段仍旧处于禁用状态。
在一种可能的实施方式中，终端将禁用频段进行解禁处理可以是将禁用频段从终端黑名单中移除。后续，终端可以正常驻留在这个频段对应的小区。
在一种可能的实施方式中，将异常PA设置为正常可以是PA由于硬件损坏，终端将其判定为异常PA，终端重置后，异常PA并未恢复正常，而是终端将其默认为正常状态。
在另一种可能的实施方式中，将异常PA设置为正常可以是PA硬件没有损坏，由于PA短暂性失效终端将其判定为异常PA，终端重置后，异常PA恢复正常。
示例性的，结合图6和表一对上述异常PA确定及重置的过程予以说明。某终端中设置有低频PA、中高频PA1、中高频PA2以及高频PA，各PA对应相应的计数器，用于更新PA的异常次数。设第一时长为24小时，第一次数阈值为1800。终端每2s从终端日志中获取实际信号发射功率，通过处理器计算终端的实际信号发射功率与目标信号发射功率的功率差值，终端将该功率差值与差值阈值比较，并更新当前频段对应PA的异常次数。达到24小时，由各PA对应的计数器可知，低频PA的异常次数为1800，中高频PA1的异常次数为1500，高频PA2的异常次数为300，频PA的异常次数为1300。由此可知，低频PA的异常次数达到第一次数阈值1800，因此终端将低频PA确定为异常PA，并禁用表一中低频PA对应的所有频段。终端重启、开关机或者SIM卡热插拔后，终端将低频PA设置为正常的PA，并对低频PA对应的所有频段解禁，各PA对应的计数器清零。
综上所述，在本申请实施例中，规定的时长内，PA异常次数达到次数阈值，终端将该PA确定为异常PA，并将异常PA通过目标提示信息的形式提醒用户，方便用户日后维修终端时能快速找到异常PA，降低用户的维修成本。另外，在满足重置条件时，终端通过将异常PA重置为正常PA，并对相应的禁用频段进行解禁处理，避免异常PA恢复正常后，其对应的频段仍旧处于禁用状态，进而对小区驻留造成影响。
上述终端将第一时长内异常次数达到第一次数阈值的PA确定为异常PA后，并未对该异常PA进行标记，终端重置之后，终端将异常PA设置为正常PA，但是该PA的异常状态并未真正消除，终端需要重新执行一次判断，导致终端可能又陷入无服务的状态，因此在另一种可能的实施方式中，终端将有异常历史的PA进行标记，当终端需要重新判断异常PA时，可以缩短判断的时间(简化异常PA的判断流程)，进而减少终端陷入无服务状态的时间。请参考图7，其中示出了本申请另一个示例性实施例提供的异常PA确定过程的流程图。
步骤710，获取终端的实际信号发射功率。
步骤710请参考步骤310的实施方式，本申请实施例对此不再赘述。
步骤720，基于实际信号发射功率以及目标信号发射功率，更新PA的异常次数，目标信号发射功率由网络设备进行指示。
步骤720请参考步骤320至步骤330的实施方式，本申请实施例对此不再赘述。
步骤730，在PA未设置历史异常标识的情况下，且第二时长内PA的异常次数达到第二次数阈值，将PA确定为异常PA，历史异常标识用于表征PA存在未消除的历史异常；为PA设置历史异常标识。
在一种可能的实施方式中，终端在确定PA异常次数的同时检测该PA是否 设置历史异常标识，若终端确定PA未设置历史异常标识，在第二时长内，PA的异常次数达到第二次数阈值，则终端将该PA确定为异常PA，并为该PA设置历史异常标识。
可选地，第二时长可以是12小时、20小时、24小时等，本申请实施例对此不作限定。
可选地，第二次数阈值可以是1500、2000、2500本申请实施例对此不进行限定。
在一种可能的实施方式中，历史异常标识可以是设置于PA上的识别码、标识码等，本申请实施例对此不作限定。
示例性的，如图8所示，结合表一，某终端中设置的低频PA、中高频PA1、中高频PA2以及高频PA并未设置历史异常标识。预设差值阈值为10dB，第二次数阈值为1500，第二时长为12小时。终端每2s获取一次实际信号发射功率，并计算实际信号发射功率与目标信号发射功率的差值。当实际信号发射功率与目标信号发射功率的差值大于差值阈值10dB时，则判定信号发射功率异常1次。根据信号发射功率异常确定当前频段，并通过上述各PA对应的计数器更新当前频段对应的PA异常次数。达到12小时，由上述各PA对应的计数器可知，低频PA的异常次数为1800，中高频PA1的异常次数为1000，中高频PA2的异常次数为300，高频PA的异常次数为1500。低频PA的异常次数与高频PA的异常次数达到第二次数阈值1500，因此终端将低频PA和高频PA确定为异常PA。异常PA设置有标识码，该标识码的长度为1比特，用于表示PA的历史异常标识。终端将低频PA和高频PA确定为异常PA后，低频PA和高频PA的标识码显示为1，用于表示低频PA和高频PA设置有历史异常标识，中高频PA1和中高频PA2并未设置历史异常标识。
步骤740，在PA设置有历史异常标识的情况下，且第三时长内PA的异常次数达到第三次数阈值，将PA确定为异常PA，第三时长小于第二时长。
在一种可能的实施方式中，若终端检测到PA设置有历史异常标识，可以通过缩短确定PA异常次数的时长简化确定异常PA的过程，减少终端的计算量。因此第三时长需小于第二时长。示例性的，若第二时长是12小时，第三时长可能是10小时、8小时，也可能是6小时等，本申请实施例对此不做限定。
在一种可能的实施方式中，第二次数阈值与第三次数阈值并没有直接的关系，二者可能相同也可能不同，另外第三时长缩短，第三时长对应的第三次数阈值可能减少，也可能不变。
示例性的，终端检测到中高频PA1和高频PA的标识码为1，则表示中高频PA1和高频PA设置有历史异常标识，因此为了减少终端的计算量，缩短确定PA异常次数的时长，因此相较于上述第二时长，第三时长为6小时。预设差值阈值为10dB，第三次数阈值为1000次。终端每2s从终端日志中获取实际信号发射功率，通过处理器计算终端的实际信号发射功率与目标信号发射功率的功率差值，终端将该功率差值与差值阈值比较，并更新当前频段对应PA的异常次数。达到6小时，由各PA对应的计数器可知，低频PA的异常次数为900，中高频 PA1的异常次数为1000，高频PA2的异常次数为300，频PA的异常次数为1200。中高频PA1的异常次数和高频PA的异常次数达到第三次数阈值，终端将中高频PA1和高频PA确定为异常PA。
步骤750，在满足重置条件的情况下，将异常PA重置为正常PA，以及对禁用频段进行解禁处理。
用户对终端执行重置操作后，终端将禁用频段进行解禁处理，将异常PA设置为正常PA，重置后PA的历史异常标识仍然保留。当终端再一次确定异常PA时，当终端检测到设置有历史异常标识的PA可以简化异常PA判定过程，从而减轻终端的计算量。
示例性的，如图8所示，终端重启、开关机或者SIM卡热插拔后，终端将低频PA、高频PA设置为正常的PA，并对低频PA以及高频PA对应的所有频段解禁，但是低频PA和高频PA的历史异常标识仍保留，各PA对应的计数器清零。
步骤760，在PA设置有历史异常标识的情况下，且第二时长内PA的异常次数未达到第四次数阈值，删除PA的历史异常标识，第四次数阈值小于或等于第二次数阈值。
在本申请实施例中，导致PA异常的原因可能是：一是PA硬件本身损坏导致PA异常；二是由于PA短暂性失效导致PA异常。无论哪种原因导致PA异常，终端检测到PA异常均会对PA设置历史异常标识。但是由于PA短暂性失效导致的PA异常会在一段时间后自动恢复，前述方法会影响终端确定异常PA的准确性。因此在本申请实施例中预设第四次数阈值。
在一种可能的实施方式中，终端检测到PA设置有历史异常标识，在第二时长内PA异常次数未达到第四次数值阈值，则表明该PA已恢复正常(该PA异常可能是由于PA短暂性失效导致的，或者，已经更换异常PA)，此时终端删除该PA的历史异常标识。
示例性，若第二次数阈值为1800，第四次数阈值可能是1800，也可能是500、400等，本申请实施例对此不作限定。
示例性的，如图9所示，终端检测到低频PA和高频PA设置有标识码，表明低频PA和高频PA设置有历史异常标识。由前述可知，第二次数阈值为1500，第二时长为12小时，差值阈值为10dB，第四次数阈值要小于第二次数阈值，因此第四次数阈值为800。12小时内，由各PA对应的计数器可知，低频PA的异常次数为1500，中高频PA1的异常次数为1000，高频PA2的异常次数为800，高频PA的异常次数为700。高频PA的异常次数未达到第四次数阈值800，因此可知高频PA已恢复正常，终端删除高频PA的历史异常标识。
综上所述，在本申请实施例中，对存在异常历史的PA设置历史异常标识，终端在确定异常PA的过程中，当终端检测到PA设置有历史异常标识，简化终端确定异常PA的过程，减少终端的计算量。
下述为本申请装置实施例，可以用于执行本申请方法实施例。对于本申请装 置实施例中未披露的细节，请参照本申请方法实施例。
请参考图10，其示出了本申请一个实施例提供的小区驻留装置的结构框图。该装置具有实现上述方法实施例中由第一终端执行的功能，该功能可以由硬件实现，也可以由硬件执行相应的软件实现。如图10所示，该装置可以包括：
第一确定模块1001，用于基于信号发射功率确定异常PA，其中，终端中设置有至少两个PA，且不同PA用于对不同频段的信号进行功率放大处理；
第二确定模块1002，用于将所述异常PA对应的频段确定为禁用频段；
小区驻留模块1003，用于基于所述禁用频段进行小区驻留，其中，所述终端所驻留小区的频段不属于所述禁用频段。
可选地，所述第一确定模块1001，还用于：
获取所述终端的实际信号发射功率；
基于所述实际信号发射功率以及目标信号发射功率，更新PA的异常次数，所述目标信号发射功率由网络设备进行指示；
基于所述异常次数确定所述异常PA。
可选地，所述第一确定模块1001，还用于：
在所述实际信号发射功率与所述目标信号发射功率的功率差值大于差值阈值的情况下，确定当前频段，所述当前频段为所述终端当前驻留小区的频段；
更新所述当前频段对应PA的所述异常次数。
可选地，所述第一确定模块1001，还用于：
将第一时长内所述异常次数达到第一次数阈值的PA确定为所述异常PA。
可选地，所述装置还包括第一重置模块，用于：
在满足重置条件的情况下，将所述异常PA重置为正常PA，以及对所述禁用频段进行解禁处理；
其中，所述重置条件包括终端重启、终端开关机以及SIM卡热插拔中的至少一种。
可选地，所述第一确定模块1001，还用于：
在PA未设置历史异常标识的情况下，且第二时长内所述PA的所述异常次数达到第二次数阈值，将所述PA确定为所述异常PA，所述历史异常标识用于表征所述PA存在未消除的历史异常；为所述PA设置所述历史异常标识；
在PA设置有所述历史异常标识的情况下，且第三时长内所述PA的所述异常次数达到第三次数阈值，将所述PA确定为所述异常PA，所述第三时长小于所述第二时长。
可选地，所述装置还包括第二重置模块，用于：
在满足重置条件的情况下，将所述异常PA重置为正常PA，以及对所述禁用频段进行解禁处理；
其中，重置后PA的所述历史异常标识保留，所述重置条件包括终端重启、终端开关机以及SIM卡热插拔中的至少一种。
可选地，所述装置还包括删除模块，用于：
在PA设置有所述历史异常标识的情况下，且所述第二时长内所述PA的所 述异常次数未达到第四次数阈值，删除所述PA的所述历史异常标识，所述第四次数阈值小于或等于所述第二次数阈值。
可选地，所述第一确定模块1001，还用于：
在所述终端处于开机状态的情况下，按照目标周期获取所述实际信号发射功率；或，
在所述终端处于开机且亮屏状态的情况下，按照目标周期获取所述实际信号发射功率，其中，所述终端在熄屏状态下降低信号发射功率。
可选地，所述小区驻留模块1003，用于：
基于所述禁用频段进行小区选择、小区重选或小区切换中的至少一种。
可选地，所述基于信号发射功率确定异常PA之后，所述装置还包括：
显示模块，用于显示目标提示信息，所述目标提示信息用于提示存在异常的所述异常PA。
本申请实施例中，终端通过信号发射功率确定异常PA，并禁用异常PA对应的频段，进而选择驻留在禁用频段以外的小区。一方面，终端确定异常PA并禁用异常PA对应的频段，能够避免终端因异常PA导致信号发射功率减弱，网络设备长时间监测不到终端的信号的情况；另一方面，为了避免同频干扰，运营商在某一片区的布网不会只布局单一频段，因此终端禁用异常PA对应的频段，选择在其他频段的小区驻留，能够避免终端因异常PA造成长时间处于无服务状态，提高PA异常情况下终端通信业务的可用性。
图11示出了本申请一个示例性实施例提供的终端(第一终端或第二终端)的结构示意图，该终端包括：处理器1101、接收器1102、发射器1103、存储器1104和总线1105。
处理器1101包括一个或者一个以上处理核心，处理器1101通过运行软件程序以及模块，从而执行各种功能应用以及信息处理。
接收器1102和发射器1103可以实现为一个通信组件，该通信组件可以是一块通信芯片。
存储器1104通过总线1105与处理器1101相连。
存储器1104可用于存储至少一个指令，处理器1101用于执行该至少一个指令，以实现上述方法实施例中的各个步骤。
此外，存储器1104可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，易失性或非易失性存储设备包括但不限于：磁盘或光盘，电可擦除可编程只读存储器(Erasable Programmable Read Only Memory,EEPROM)，可擦除可编程只读存储器(Erasable Programmable Read Only Memory,EPROM)，静态随时存取存储器(Static Random Access Memory，SRAM)，只读存储器(Read-Only Memory,ROM)，磁存储器，快闪存储器，可编程只读存储器(Programmable Read-Only Memory，PROM)。
本申请实施例还提供了一种计算机可读存储介质，该计算机可读存储介质 存储有至少一条程序代码，所述程序代码由处理器加载并执行以实现如上各个实施例所述的小区驻留方法。
根据本申请的一个方面，提供了一种计算机程序产品，该计算机程序产品包括计算机指令，该计算机指令存储在计算机可读存储介质中。计算机设备的处理器从计算机可读存储介质读取该计算机指令，处理器执行该计算机指令，使得该计算机设备执行上述方面的各种可选实现方式中提供的小区驻留方法。
应当理解的是，在本文中提及的“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。另外，本文中描述的步骤编号，仅示例性示出了步骤间的一种可能的执行先后顺序，在一些其它实施例中，上述步骤也可以不按照编号顺序来执行，如两个不同编号的步骤同时执行，或者两个不同编号的步骤按照与图示相反的顺序执行，本申请实施例对此不作限定。
以上所述仅为本申请的可选实施例，并不用以限制本申请，凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (20)

  1. 一种小区驻留方法，所述方法包括：
    基于信号发射功率确定异常PA，其中，终端中设置有至少两个PA，且不同PA用于对不同频段的信号进行功率放大处理；
    将所述异常PA对应的频段确定为禁用频段；
    基于所述禁用频段进行小区驻留，其中，所述终端所驻留小区的频段不属于所述禁用频段。
  2. 根据权利要求1所述的方法，其中，所述基于信号发射功率确定异常PA，包括：
    获取所述终端的实际信号发射功率；
    基于所述实际信号发射功率以及目标信号发射功率，更新PA的异常次数，所述目标信号发射功率由网络设备进行指示；
    基于所述异常次数确定所述异常PA。
  3. 根据权利要求2所述的方法，其中，所述基于所述实际信号发射功率以及目标信号发射功率，更新PA的异常次数，包括：
    在所述实际信号发射功率与所述目标信号发射功率的功率差值大于差值阈值的情况下，确定当前频段，所述当前频段为所述终端当前驻留小区的频段；
    更新所述当前频段对应PA的所述异常次数。
  4. 根据权利要求2所述的方法，其中，所述基于所述异常次数确定所述异常PA，包括：
    将第一时长内所述异常次数达到第一次数阈值的PA确定为所述异常PA。
  5. 根据权利要求4所述的方法，其中，所述方法还包括：
    在满足重置条件的情况下，将所述异常PA重置为正常PA，以及对所述禁用频段进行解禁处理；
    其中，所述重置条件包括终端重启、终端开关机以及SIM卡热插拔中的至少一种。
  6. 根据权利要求2所述的方法，其中，所述基于所述异常次数确定所述异常PA，包括：
    在PA未设置历史异常标识的情况下，且第二时长内所述PA的所述异常次数达到第二次数阈值，将所述PA确定为所述异常PA，所述历史异常标识用于表征所述PA存在未消除的历史异常；为所述PA设置所述历史异常标识；
    在PA设置有所述历史异常标识的情况下，且第三时长内所述PA的所述异 常次数达到第三次数阈值，将所述PA确定为所述异常PA，所述第三时长小于所述第二时长。
  7. 根据权利要求6所述的方法，其中，所述方法还包括：
    在满足重置条件的情况下，将所述异常PA重置为正常PA，以及对所述禁用频段进行解禁处理；
    其中，重置后PA的所述历史异常标识保留，所述重置条件包括终端重启、终端开关机以及SIM卡热插拔中的至少一种。
  8. 根据权利要求6所述的方法，其中，所述方法还包括：
    在PA设置有所述历史异常标识的情况下，且所述第二时长内所述PA的所述异常次数未达到第四次数阈值，删除所述PA的所述历史异常标识，所述第四次数阈值小于或等于所述第二次数阈值。
  9. 根据权利要求2所述的方法，其中，所述获取所述终端的实际信号发射功率，包括：
    在所述终端处于开机状态的情况下，按照目标周期获取所述实际信号发射功率；或，
    在所述终端处于开机且亮屏状态的情况下，按照目标周期获取所述实际信号发射功率，其中，所述终端在熄屏状态下降低信号发射功率。
  10. 根据权利要求1至9任一所述的方法，其中，所述基于所述禁用频段进行小区驻留，包括：
    基于所述禁用频段进行小区选择、小区重选或小区切换中的至少一种。
  11. 根据权利要求1至9任一所述的方法，其中，所述基于信号发射功率确定异常PA之后，所述方法还包括：
    显示目标提示信息，所述目标提示信息用于提示存在异常的所述异常PA。
  12. 一种小区驻留装置，所述装置包括：
    第一确定模块，用于基于信号发射功率确定异常PA，其中，终端中设置有至少两个PA，且不同PA用于对不同频段的信号进行功率放大处理；
    第二确定模块，用于将所述异常PA对应的频段确定为禁用频段；
    小区驻留模块，用于基于所述禁用频段进行小区驻留，其中，所述终端所驻留小区的频段不属于所述禁用频段。
  13. 根据权利要求12所述的装置，其中，所述第一确定模块，还用于：
    获取所述终端的实际信号发射功率；
    基于所述实际信号发射功率以及目标信号发射功率，更新PA的异常次数，所述目标信号发射功率由网络设备进行指示；
    基于所述异常次数确定所述异常PA。
  14. 根据权利要求13所述的装置，其中，所述第一确定模块，还用于：
    在所述实际信号发射功率与所述目标信号发射功率的功率差值大于差值阈值的情况下，确定当前频段，所述当前频段为所述终端当前驻留小区的频段；
    所述第一确定模块，用于更新所述当前频段对应PA的所述异常次数。
  15. 根据权利要求13所述的装置，其中，所述第一确定模块，还用于：
    将第一时长内所述异常次数达到第一次数阈值的PA确定为所述异常PA。
  16. 根据权利要求15所述的装置，其中，所述装置还包括：
    第一重置模块，用于在满足重置条件的情况下，将所述异常PA重置为正常PA，以及对所述禁用频段进行解禁处理；
    其中，所述重置条件包括终端重启、终端开关机以及SIM卡热插拔中的至少一种。
  17. 根据权利要求13所述的装置，其中，所述第一确定模块，还用于：
    在PA未设置历史异常标识的情况下，且第二时长内所述PA的所述异常次数达到第二次数阈值，将所述PA确定为所述异常PA，所述历史异常标识用于表征所述PA存在未消除的历史异常；为所述PA设置所述历史异常标识；
    在PA设置有所述历史异常标识的情况下，且第三时长内所述PA的所述异常次数达到第三次数阈值，将所述PA确定为所述异常PA，所述第三时长小于所述第二时长。
  18. 一种终端，所述终端包括处理器和存储器，所述存储器中存储有至少一段程序，所述至少一段程序由所述处理器加载并执行以实现如权利要求1至11任一所述的小区驻留方法。
  19. 一种计算机可读存储介质，所述计算机可读存储介质中存储有至少一段程序，所述至少一段程序由处理器加载并执行以实现如权利要求1至11任一所述的小区驻留方法。
  20. 一种计算机程序产品，所述计算机程序产品包括计算机指令，所述计算机指令存储在计算机可读存储介质中；计算机设备的处理器从计算机可读存储介质读取该计算机指令，处理器执行该计算机指令，使得所述计算机设备执行以实现如权利要求1至11所述的小区驻留方法。
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