WO2018000790A1 - Procédé et appareil de resélection de cellule pour un terminal mobile, et terminal mobile - Google Patents

Procédé et appareil de resélection de cellule pour un terminal mobile, et terminal mobile Download PDF

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Publication number
WO2018000790A1
WO2018000790A1 PCT/CN2016/113589 CN2016113589W WO2018000790A1 WO 2018000790 A1 WO2018000790 A1 WO 2018000790A1 CN 2016113589 W CN2016113589 W CN 2016113589W WO 2018000790 A1 WO2018000790 A1 WO 2018000790A1
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WIPO (PCT)
Prior art keywords
target cell
cell
field strength
mobile terminal
bcch field
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PCT/CN2016/113589
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English (en)
Chinese (zh)
Inventor
刘建峰
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宇龙计算机通信科技(深圳)有限公司
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Publication of WO2018000790A1 publication Critical patent/WO2018000790A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/12—Detection or prevention of fraud
    • H04W12/121—Wireless intrusion detection systems [WIDS]; Wireless intrusion prevention systems [WIPS]
    • H04W12/122—Counter-measures against attacks; Protection against rogue devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/12—Detection or prevention of fraud
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/02—Access restriction performed under specific conditions

Definitions

  • the present invention relates to the field of mobile terminal technologies, and in particular, to a cell reselection method for a mobile terminal, a cell reselection device for a mobile terminal, and a mobile terminal.
  • the pseudo base station is a radio transmitting station that masquerades as a public mobile communication carrier base station to extract mobile terminal information or to perform information transmission therewith.
  • the application of the pseudo base station defense technology is mainly after the terminal selects the pseudo base station cell and decodes the system information of the corresponding cell, according to the C1 and C2 values configured in the system message (there are significant differences between the two), and the LAU (Location Area Update, Location area update)
  • the frequency of location update, the type of service on the SDCCH (Stand-Alone Dedicated Control Channel) channel usually the pseudo base station cell is configured to support only short message service
  • the LAI of the base station cell configuration Location Area Identification
  • location area identification value the value ranges from 0 to 65535, but the pseudo base station is more likely to trigger the LAU process for the terminal, and the LAI is often set to a boundary value such as 0 or 65535) to identify the pseudo.
  • the base station cell although the method can determine whether the current access cell is a pseudo base station cell (ie, a pseudo cell) by detecting the cell access parameter, but because it belongs to the after-the-fact defense, the terminal has begun to try to initiate the station to the pseudo base station cell. Stay and access, in the process, the user will not be able to communicate normally, and Pseudo base station cell configuration parameters can be freely configured by software, and therefore can not provide complete shielding the dummy cell base station.
  • a pseudo base station cell ie, a pseudo cell
  • the present invention is based on at least one of the above technical problems, and proposes a new cell reselection scheme for a mobile terminal, which can quickly identify a pseudo cell, and effectively prevent the mobile terminal from initiating resident and access to the pseudo cell.
  • the present invention provides a cell reselection method for a mobile terminal, including: detecting, by a mobile terminal, a BCCH field strength of a plurality of neighboring cells in a process of reselecting a cell, and according to a BCCH field of the plurality of neighboring cells Determining whether the target cell is in the target cell according to the BCCH field strength of the target cell and the BCCH field strength of other neighboring cells when determining the target cell that satisfies the reselection condition; An abnormal state; and when determining that the target cell is in an abnormal state, restricting selection rights to the target cell.
  • the pseudo base station generally acquires the neighboring cell BCCH (Broadcast Control Channel) and measures the field strength of the neighboring cell BCCH, and selects the neighboring cell BCCH with the weakest signal, and sets the same MCC (Mobile). Country Code, Mobile Country Code) and MNC (Mobile Network Code), and transmit the BCCH signal at a high power at the frequency, and the terminal detects the BCCH signal and the signal is strongest, thereby triggering the terminal to
  • the pseudo base station cell initiates reselection, that is, the field strength of the general pseudo cell will be weakened from weaker to stronger, so the BCCH field strength of multiple neighboring cells is detected by the mobile terminal in the process of reselecting the cell, and according to multiple
  • the BCCH field strength of the neighboring cell determines the target cell that satisfies the reselection condition (the number of neighboring cells that generally satisfy the reselection condition may be multiple, so the strongest field strength is selected as the target cell according to the BCCH field strength), when it is determined that
  • the step of determining whether the target cell is in an abnormal state according to a BCCH field strength of the target cell and a change range of a BCCH field strength of another neighboring cell specifically: determining the target separately Whether the BCCH field strength of the cell and the BCCH field strength of the other neighboring cells are greater than a predetermined threshold; the BCCH field strength of the target cell is greater than or equal to the predetermined threshold, and the other neighboring cells are Determining that the target cell is in an abnormal state when the magnitude of change of the BCCH field strength is less than the predetermined threshold; the BCCH field strength of the target cell and the BCCH field strength of the other neighboring cells are all greater than or equal to the said
  • the threshold is predetermined, the target cell is determined to be in a normal state; when the change range of the BCCH field strength of the target cell is less than the predetermined threshold, determining that the target cell is in a normal state.
  • the magnitude of the change in the BCCH field strength in the target cell is greater than or equal to a predetermined threshold, and other neighbors.
  • the change range of the BCCH field strength of the cell is less than a predetermined threshold, it is determined that the target cell is in an abnormal state.
  • the BCCH field strength of the target cell and the BCCH field strength of other neighboring cells are greater than or equal to a predetermined threshold, the target cell is determined to be in the target cell. In the normal state, the field strength is abruptly excluded by other factors, and the accuracy of the detection result is ensured, wherein the predetermined threshold can be set according to the actual situation.
  • the method further includes: when the mobile terminal reselects a cell, detecting whether the target cell returns to a normal state; and determining to restore the target cell to a normal state, recovering Selection authority for the target cell.
  • the target cell can be determined by detecting whether the target cell returns to the normal state.
  • the selection permission of the target cell is restored to avoid filtering out the cells in the normal state, which is more suitable for actual needs.
  • the step of detecting a BCCH field strength of a plurality of neighboring cells includes: creating a sliding window for calculating a magnitude of a BCCH field strength change; and counting each of the plurality of neighboring cells The BCCH field strength variation range of the neighboring cells within the sliding window range.
  • the BCCH field strength variation range of each neighboring cell in the latest period of time can be counted through the sliding window, thereby ensuring the timeliness and accuracy of the statistical result.
  • the method further includes: when determining that the target cell is in a normal state, sending an access request to the target cell.
  • a cell reselection apparatus for a mobile terminal, comprising: a detecting unit configured to detect, in a process of reselecting a cell, a BCCH field strength of a plurality of neighboring cells, and according to the The BCCH field strength of the plurality of neighboring cells determines a target cell that satisfies the reselection condition; and the determining unit is configured to: according to the target cell satisfying the reselection condition, according to the BCCH field strength of the target cell and the BCCH field of other neighboring cells A strong change amplitude determines whether the target cell is in an abnormal state; and the processing unit is configured to limit the selection authority to the target cell when determining that the target cell is in an abnormal state.
  • the pseudo base station since the pseudo base station generally acquires the neighboring cell BCCH and measures the field strength of the neighboring cell BCCH, the neighboring cell BCCH with the weakest signal is selected, and the same MCC and MNC are set, and the power is high at the frequency.
  • the terminal Transmitting the BCCH signal after the spoofing, and the terminal detects the BCCH signal and the signal is strongest, thereby triggering the terminal to initiate reselection to the pseudo base station cell, that is, the field strength of the general pseudo cell will be weaker to stronger, so
  • the mobile terminal detects the BCCH field strength of the multiple neighboring cells in the process of reselecting the cell, and determines the target cell that meets the reselection condition according to the BCCH field strength of the multiple neighboring cells (the neighboring cells generally satisfying the reselection condition may be multiple Therefore, according to the BCCH field strength, the strongest field strength is selected as the target cell.
  • the target is determined according to the BCCH field strength of the target cell and the variation range of the BCCH field strength of the neighboring cell. Whether the cell is in an abnormal state, and when determining that the target cell is in an abnormal state, restricting the selection authority to the target cell, so that the pseudo cell can be quickly identified, thereby effectively avoiding
  • the mobile terminal initiates the residing and access to the pseudo cell, that is, the user information is protected, and the user information security is not protected, and the normal communication service requirement of the user is not affected.
  • the determining unit is specifically configured to: determine whether a BCCH field strength of the target cell and a BCCH field strength of the other neighboring cells are respectively greater than or equal to a predetermined threshold; Determining that the target cell is in an abnormal state when the change range of the BCCH field strength of the target cell is greater than or equal to the predetermined threshold, and the change range of the BCCH field strength of the other neighboring cells is less than the predetermined threshold; And determining, when the BCCH field strength of the cell and the BCCH field strength of the other neighboring cells are greater than or equal to the predetermined threshold, determining that the target cell is in a normal state; and the BCCH field strength in the target cell is less than When the predetermined threshold is determined, it is determined that the target cell is in a normal state.
  • the magnitude of the change in the BCCH field strength in the target cell is greater than or equal to a predetermined threshold, and other neighbors.
  • the change range of the BCCH field strength of the cell is less than a predetermined threshold, it is determined that the target cell is in an abnormal state.
  • the BCCH field strength of the target cell and the BCCH field strength of other neighboring cells are greater than or equal to a predetermined threshold, the target cell is determined to be in the target cell. In the normal state, the field strength is abruptly excluded by other factors, and the accuracy of the detection result is ensured, wherein the predetermined threshold can be set according to the actual situation.
  • the determining unit is further configured to: when the transfer terminal reselects the cell again, detecting whether the target cell returns to a normal state; the processing unit is further configured to When it is determined that the target cell returns to a normal state, the selection authority for the target cell is restored.
  • the target cell can be determined by detecting whether the target cell returns to the normal state.
  • the selection permission of the target cell is restored to avoid filtering out the cells in the normal state, which is more suitable for actual needs.
  • the detecting unit includes: a creating unit configured to create a sliding window for counting a magnitude of a BCCH field strength change; and a statistical unit configured to count the plurality of neighboring cells The magnitude of the BCCH field strength variation of each neighboring cell within the range of the sliding window.
  • the BCCH field strength variation range of each neighboring cell in the latest period of time can be counted through the sliding window, thereby ensuring the timeliness and accuracy of the statistical result.
  • the method further includes: a sending unit, configured to send an access request to the target cell when determining that the target cell is in a normal state.
  • a mobile terminal comprising: the cell reselection apparatus of the mobile terminal according to any one of the above aspects.
  • the mobile terminal detects the BCCH field strength of the multiple neighboring cells in the process of reselecting the cell, and determines the target cell that satisfies the reselection condition according to the BCCH field strength of the multiple neighboring cells, and the BCCH field in the target cell.
  • the magnitude of the strong change is greater than or equal to the predetermined threshold, and the magnitude of the change of the BCCH field strength of the other neighboring cells is less than the predetermined threshold, determine that the target cell is in an abnormal state, and restrict the selection authority to the target cell, when the BCCH field strength of the target cell is When the change range of the BCCH field strength of the other neighboring cells is greater than or equal to a predetermined threshold or the change range of the BCCH field strength of the target cell is less than a predetermined threshold, determining that the target cell is in a normal state, and sending an access request to the target cell, enabling fast
  • the pseudo cell is identified, thereby effectively preventing the mobile terminal from initiating the camping and accessing to the pseudo cell, that is, protecting the user information security, and not protecting the user information security, and also not affecting the normal communication service requirement of the user.
  • FIG. 1 shows a schematic flow chart of a cell reselection method of a mobile terminal according to an embodiment of the present invention
  • FIG. 2 shows a schematic block diagram of a cell reselection apparatus of a mobile terminal according to an embodiment of the present invention
  • FIG. 3 shows a schematic block diagram of a mobile terminal in accordance with one embodiment of the present invention
  • FIG. 4 is a schematic flow chart of a cell reselection method of a mobile terminal according to another embodiment of the present invention.
  • FIG. 5 shows a schematic block diagram of a mobile terminal in accordance with another embodiment of the present invention.
  • FIG. 1 shows a schematic flow chart of a cell reselection method of a mobile terminal according to an embodiment of the present invention.
  • a cell reselection method of a mobile terminal includes:
  • Step 102 The mobile terminal detects a BCCH field strength of the multiple neighboring cells in the process of reselecting the cell, and determines a target cell that satisfies the reselection condition according to the BCCH field strength of the multiple neighboring cells.
  • the step of detecting a BCCH field strength of the plurality of neighboring cells includes: creating a sliding window for calculating a magnitude of the BCCH field strength change; and counting each of the plurality of neighboring cells in the sliding window range The magnitude of the BCCH field strength variation within.
  • the variation range of the BCCH field strength of each neighboring cell in the latest period of time can be counted, and the timeliness and accuracy of the statistical results are guaranteed.
  • Step 104 When it is determined that there is a target cell that meets the reselection condition, determine whether the target cell is in an abnormal state according to the BCCH field strength of the target cell and the change range of the BCCH field strength of other neighboring cells.
  • the step of determining whether the target cell is in an abnormal state according to the BCCH field strength of the target cell and the change range of the BCCH field strength of the other neighboring cells specifically: determining the BCCH field strength of the target cell separately Whether the amplitude of the change of the BCCH field strength of the other neighboring cell is greater than a predetermined threshold; the variation range of the BCCH field strength of the target cell is greater than or equal to the predetermined threshold, and the variation range of the BCCH field strength of the other neighboring cells
  • the threshold is smaller than the predetermined threshold, determining that the target cell is in an abnormal state; when the BCCH field strength of the target cell and the BCCH field strength of the other neighboring cells are greater than or equal to the predetermined threshold, determining The target cell is in a normal state; when the change range of the BCCH field strength of the target cell is less than the predetermined threshold, determining that the target cell is in a normal state.
  • the magnitude of the change in the BCCH field strength in the target cell is greater than or equal to a predetermined threshold, and the BCCH field strength of other neighboring cells is strong.
  • the magnitude of the change is less than the predetermined threshold, it is determined that the target cell is in an abnormal state.
  • the target cell is determined to be in a normal state to exclude other The factor causes a sudden change in field strength to ensure the accuracy of the test results, wherein the predetermined threshold can be set according to the actual situation.
  • Step 106 When determining that the target cell is in an abnormal state, restricting selection rights to the target cell.
  • the pseudo base station generally acquires the neighboring cell BCCH (Broadcast Control Channel) and measures the field strength of the neighboring cell BCCH, and selects the neighboring cell BCCH with the weakest signal, and sets the same MCC (Mobile). Country Code, Mobile Country Code) and MNC (Mobile Network Code), and transmit the BCCH signal at a high power at the frequency, and the terminal detects the BCCH signal and the signal is strongest, thereby triggering the terminal to
  • the pseudo base station cell initiates reselection, that is, the field strength of the general pseudo cell will be weakened from weaker to stronger, so the BCCH field strength of multiple neighboring cells is detected by the mobile terminal in the process of reselecting the cell, and according to multiple
  • the BCCH field strength of the neighboring cell determines the target cell that satisfies the reselection condition (the number of neighboring cells that generally satisfy the reselection condition may be multiple, so the strongest field strength is selected as the target cell according to the BCCH field strength), when it is determined that
  • the method further includes: when the mobile terminal reselects a cell, detecting whether the target cell returns to a normal state; and determining to restore the target cell to a normal state, recovering Selection authority for the target cell.
  • the target cell can be determined by detecting whether the target cell returns to the normal state.
  • the selection permission of the target cell is restored to avoid filtering out the cells in the normal state, which is more suitable for actual needs.
  • the method further includes: when determining that the target cell is in a normal state, sending an access request to the target cell.
  • FIG. 2 shows a schematic block diagram of a cell reselection apparatus of a mobile terminal in accordance with an embodiment of the present invention.
  • a cell reselection apparatus 200 of a mobile terminal includes: a detecting unit 202, a determining unit 204, and a processing unit 206.
  • the detecting unit 202 is configured to: when the mobile terminal reselects the cell, detect the BCCH field strength of the multiple neighboring cells, and determine the target cell that meets the reselection condition according to the BCCH field strength of the multiple neighboring cells.
  • the detecting unit 202 includes: a creating unit 2022, configured to create a sliding window for counting the magnitude of the BCCH field strength change; and a statistic unit 2024 configured to count each of the plurality of neighboring cells in the sliding The magnitude of the BCCH field strength variation within the window.
  • a creating unit 2022 configured to create a sliding window for counting the magnitude of the BCCH field strength change
  • a statistic unit 2024 configured to count each of the plurality of neighboring cells in the sliding The magnitude of the BCCH field strength variation within the window.
  • the variation range of the BCCH field strength of each neighboring cell in the latest period of time can be counted, and the timeliness and accuracy of the statistical results are guaranteed.
  • the determining unit 204 is configured to determine, according to the BCCH field strength of the target cell and the BCCH field strength of the other neighboring cells, whether the target cell is in an abnormal state, when determining that the target cell meets the reselection condition.
  • the determining unit 204 is specifically configured to: determine whether the BCCH field strength of the target cell and the BCCH field strength of the other neighboring cells are respectively greater than or equal to a predetermined threshold; and the BCCH field of the target cell When the magnitude of the strong change is greater than or equal to the predetermined threshold, and the amplitude of change of the BCCH field strength of the other neighboring cells is less than the predetermined threshold, determining that the target cell is in an abnormal state; the BCCH field strength in the target cell And determining, when the change range of the BCCH field strength of the other neighboring cells is greater than or equal to the predetermined threshold, determining that the target cell is in a normal state; and when the change range of the BCCH field strength of the target cell is less than the predetermined threshold. And determining that the target cell is in a normal state.
  • the magnitude of the change in the BCCH field strength in the target cell is greater than or equal to a predetermined threshold, and the BCCH field strength of other neighboring cells is strong.
  • the magnitude of the change is less than the predetermined threshold, it is determined that the target cell is in an abnormal state.
  • the target cell is determined to be in a normal state to exclude other The factor causes a sudden change in field strength to ensure the accuracy of the test results, wherein the predetermined threshold can be set according to the actual situation.
  • the processing unit 206 is configured to limit the selection authority to the target cell when determining that the target cell is in an abnormal state.
  • the detecting unit 202 and the creating unit 2022 and the counting unit 2024 may each be a central processing unit (CPU), a signal processor, a baseband processor, etc., and the determining unit 204 may be a comparator when implemented;
  • Processing unit 206 when implemented, can be a central processing unit, a microprocessor or a digital signal processor, or the like.
  • the pseudo base station since the pseudo base station generally acquires the neighboring cell BCCH and measures the field strength of the neighboring cell BCCH, the neighboring cell BCCH with the weakest signal is selected, and the same MCC and MNC are set, and the power is high at the frequency.
  • the terminal Transmitting the BCCH signal after the spoofing, and the terminal detects the BCCH signal and the signal is strongest, thereby triggering the terminal to initiate reselection to the pseudo base station cell, that is, the field strength of the general pseudo cell will be weaker to stronger, so
  • the mobile terminal detects the BCCH field strength of the multiple neighboring cells in the process of reselecting the cell, and determines the target cell that meets the reselection condition according to the BCCH field strength of the multiple neighboring cells (the neighboring cells generally satisfying the reselection condition may be multiple Therefore, according to the BCCH field strength, the strongest field strength is selected as the target cell.
  • the target is determined according to the BCCH field strength of the target cell and the variation range of the BCCH field strength of the neighboring cell. Whether the cell is in an abnormal state, and when determining that the target cell is in an abnormal state, restricting the selection authority to the target cell, so that the pseudo cell can be quickly identified, thereby effectively avoiding
  • the mobile terminal initiates the residing and access to the pseudo cell, that is, the user information is protected, and the user information security is not protected, and the normal communication service requirement of the user is not affected.
  • the determining unit 204 is further configured to: when the transfer terminal reselects a cell again, detecting whether the target cell returns to a normal state; and the processing unit further sets In order to determine that the target cell is restored to a normal state, the selection authority for the target cell is restored.
  • the target cell can be determined by detecting whether the target cell returns to the normal state.
  • the selection permission of the target cell is restored to avoid filtering out the cells in the normal state, which is more suitable for actual needs.
  • the method further includes: a sending unit 208, configured to send an access request to the target cell when determining that the target cell is in a normal state.
  • the sending unit 208 can be a network interface or an antenna when implemented.
  • FIG. 3 shows a schematic block diagram of a mobile terminal in accordance with an embodiment of the present invention.
  • a mobile terminal 300 includes a cell re-device 200 of a mobile terminal as shown in FIG. 2.
  • the pseudo base station Since the pseudo base station generally acquires the neighboring cell BCCH and measures the field strength of the neighboring cell BCCH, the neighboring cell BCCH with the weakest signal is selected, the pseudo base station sets the same MCC and MNC, and the BCCH after the disguise is transmitted at the frequency with high power. The signal is detected, and the terminal detects the BCCH signal and the signal is strongest, thereby triggering the terminal to initiate reselection to the pseudo base station cell.
  • the pseudo base station triggers the terminal to reselect to the pseudo base station, that is, the neighboring cell that is usually accompanied by a weak signal in the terminal accessing the pseudo base station suddenly becomes the neighboring cell with the strongest signal, and the normal The characteristics of the operator network signal change are gentle.
  • a sliding window is added to map the BCCH field strength of all neighboring cells in the sliding window range, thereby statistically changing the signal trend.
  • the change of the BCCH field strength of one of the neighboring cells is abrupt (by determining whether the magnitude of the change of the BCCH field strength is greater than or equal to a predetermined threshold value, and if the judgment result is yes, the BCCH field strength is abruptly changed; if the judgment result is no, then If the BCCH field strength is not mutated, that is, the weakest mutation is the strongest, and the BCCH field strength of other neighboring cells has no obvious hopping, the neighboring cell is added to the blacklist, and the terminal is prohibited from reselecting to the cell, while continuing to The cell performs neighbor cell measurement. When it is detected that the BCCH field strength of the cell returns to a normal value, the cell is removed from the blacklist and added to the normal candidate neighboring cell. List.
  • Figure 4 The specific process is shown in Figure 4, including:
  • Step 402 The terminal performs BCCH field strength measurement of all neighboring cells, and saves all measured values in the sliding window range.
  • Step 404 performing dot drawing on the data in the sliding window range, and counting the trend of the field strength change.
  • Step 406 Detect whether the cell strength in the blacklist is restored to a normal value. If yes, go to step 408; otherwise, go to step 410.
  • step 408 the cell is removed from the blacklist and added to the normal candidate neighbor cell list.
  • Step 410 Determine whether there is a neighboring cell that meets the reselection condition. If yes, go to step 412; otherwise, end.
  • Step 412 Determine whether the trend of the field strength change of the cell is abrupt. If yes, go to step 414; otherwise, go to step 416.
  • Step 414 Determine whether the trend of the field strength change of other neighboring cells is abrupt. If yes, go to step 416; otherwise, go to step 418.
  • step 416 a reselection request is sent to the cell.
  • step 418 the cell is added to the blacklist, and reselection to the cell is prohibited.
  • the pseudo cell ie, the pseudo cell
  • the pseudo cell can be quickly identified by using a simple sliding window and a dot mapping in the neighboring cell measurement phase, thereby preventing the terminal from initiating the camping and accessing to the fake cell, so that Effectively identify fake cells to protect user information security, and it will not affect the normal communication service needs of users.
  • the technical solution of the present invention is described in detail with reference to the accompanying drawings.
  • the technical solution of the present invention proposes a new cell reselection scheme for a mobile terminal, which can quickly identify a pseudo cell, thereby effectively preventing the mobile terminal from initiating a pseudo cell. Resident and access, which protects user information security, does not protect user information security, and does not affect the user's normal communication service needs.
  • FIG. 5 is a schematic block diagram of another mobile terminal according to an embodiment of the present invention.
  • the terminal 500 shown in FIG. 5 can be used to implement the implementations of the present invention shown in FIG. 1, FIG. 2 and FIG.
  • the mobile terminal 500 shown in FIG. 5 may include:
  • the processor 502 is coupled to a memory 506 coupled to the processor 502 via a bus 504 and an antenna 508 coupled to the processor 502.
  • the memory 506 is used to store program code, and the processor 502 is configured to call program code stored in the memory 506 for performing the following operations:
  • the mobile terminal detects the BCCH field strength of multiple neighboring cells in the process of reselecting the cell (specifically, by creating a sliding window for counting the magnitude of the BCCH field strength variation, and counting each neighboring cell in the multiple neighboring cells. a range of BCCH field strength variation within a sliding window range, and determining a target cell satisfying the reselection condition according to the BCCH field strength of the plurality of neighboring cells;
  • the control comparator determines whether the target cell is in an abnormal state according to the BCCH field strength of the target cell and the change range of the BCCH field strength of the other neighboring cells, specifically, determining by using the following process. Whether the target cell is in an abnormal state:
  • the BCCH field strength of the target cell and the BCCH field strength of the other neighboring cells are greater than or equal to a predetermined threshold; the BCCH field strength of the target cell is greater than or equal to a predetermined threshold, and the BCCH field strength of other neighboring cells is determined.
  • the magnitude of the change is less than the predetermined threshold, it is determined that the target cell is in an abnormal state; when the BCCH field strength of the target cell and the change range of the BCCH field strength of other neighboring cells are greater than or equal to a predetermined threshold, determining that the target cell is in a normal state;
  • the change range of the BCCH field strength of the cell is less than a predetermined threshold, determining that the target cell is in a normal state;
  • the selection authority for the target cell is restricted.
  • the processor 502 is configured to call the program code stored in the memory 506, and is also used to perform the following operations:
  • the handover terminal When the handover terminal reselects the cell again, by detecting whether the target cell returns to the normal state, when determining that the target cell returns to the normal state, the selection authority for the target cell is restored.
  • the processor 502 is configured to call the program code stored in the memory 506, and is also used to perform the following operations:
  • an access request is sent to the target cell through the antenna 508.
  • the mobile terminal 500 depicted in FIG. 5 can quickly identify the pseudo cell, thereby effectively preventing the mobile terminal from initiating the camping and accessing to the pseudo cell, that is, protecting the user information security and protecting the user information security. It will not affect the normal communication service needs of users.
  • the units in the terminal in the embodiment of the present invention may be combined, divided, and deleted according to actual needs.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • PROM Programmable Read-Only Memory
  • EPROM Erasable Programmable Read Only Memory
  • OTPROM One-Time Programmable Read-Only Memory
  • EEPROM Electronically-Erasable Programmable Read-Only Memory
  • CD-ROM Compact Disc Read-Only Memory

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  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé et un appareil de resélection de cellule pour un terminal mobile, et un terminal mobile. Le procédé de resélection de cellule pour un terminal mobile comprend les étapes suivantes : pendant une resélection de cellule, un terminal mobile mesure des intensités de champ BCCH d'une pluralité de cellules voisines, et détermine une cellule cible satisfaisant une condition de resélection d'après les intensités de champ BCCH de la pluralité de cellules voisines ; lorsqu'il est déterminé qu'il existe une cellule cible satisfaisant la condition de resélection, déterminer si la cellule cible est dans un état anormal d'après l'amplitude de variation de l'intensité de champ BCCH de la cellule cible et des amplitudes de variation des intensités de champ BCCH des autres cellules voisines ; et s'il est déterminé que la cellule cible est dans un état anormal, restreindre l'autorisation de sélection à la cellule cible. Grâce à la solution technique de la présente invention, une pseudo-cellule peut être rapidement identifiée, de sorte qu'un terminal mobile peut être efficacement empêché d'initier une résidence et un accès à la pseudo-cellule. Ainsi, la sécurité des informations d'un utilisateur peut être protégée, la sécurité des informations de l'utilisateur ne serait pas protégée, et les exigences de service de communication normales de l'utilisateur ne seraient pas affectées.
PCT/CN2016/113589 2016-06-27 2016-12-30 Procédé et appareil de resélection de cellule pour un terminal mobile, et terminal mobile WO2018000790A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113055954A (zh) * 2021-03-05 2021-06-29 Oppo广东移动通信有限公司 通信业务建立方法、装置、终端和存储介质

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105959955B (zh) * 2016-06-27 2019-05-14 宇龙计算机通信科技(深圳)有限公司 移动终端的小区重选方法、小区重选装置及移动终端
WO2018151702A1 (fr) * 2017-02-14 2018-08-23 Hewlett-Packard Development Company, L.P. Accès à un canal radio sur la base de codes pays
CN114710815B (zh) * 2022-03-14 2024-04-23 北京小米移动软件有限公司 小区驻留方法及装置、终端、计算机可读存储介质

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104301894A (zh) * 2014-09-01 2015-01-21 联想(北京)有限公司 信息处理方法及电子设备
CN104602241A (zh) * 2014-12-25 2015-05-06 中国科学院信息工程研究所 伪基站的判定方法及移动终端
EP3035740A1 (fr) * 2014-12-19 2016-06-22 Gemalto M2M GmbH Procédé pour faire fonctionner un dispositif de communication sans fil dans un réseau cellulaire
CN105933907A (zh) * 2016-06-28 2016-09-07 努比亚技术有限公司 一种伪基站识别装置、方法及移动终端
CN105959955A (zh) * 2016-06-27 2016-09-21 宇龙计算机通信科技(深圳)有限公司 移动终端的小区重选方法、小区重选装置及移动终端

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104301894A (zh) * 2014-09-01 2015-01-21 联想(北京)有限公司 信息处理方法及电子设备
EP3035740A1 (fr) * 2014-12-19 2016-06-22 Gemalto M2M GmbH Procédé pour faire fonctionner un dispositif de communication sans fil dans un réseau cellulaire
CN104602241A (zh) * 2014-12-25 2015-05-06 中国科学院信息工程研究所 伪基站的判定方法及移动终端
CN105959955A (zh) * 2016-06-27 2016-09-21 宇龙计算机通信科技(深圳)有限公司 移动终端的小区重选方法、小区重选装置及移动终端
CN105933907A (zh) * 2016-06-28 2016-09-07 努比亚技术有限公司 一种伪基站识别装置、方法及移动终端

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113055954A (zh) * 2021-03-05 2021-06-29 Oppo广东移动通信有限公司 通信业务建立方法、装置、终端和存储介质

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