WO2017107156A1 - 一种控制小区重选的方法及用户终端 - Google Patents

一种控制小区重选的方法及用户终端 Download PDF

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Publication number
WO2017107156A1
WO2017107156A1 PCT/CN2015/098803 CN2015098803W WO2017107156A1 WO 2017107156 A1 WO2017107156 A1 WO 2017107156A1 CN 2015098803 W CN2015098803 W CN 2015098803W WO 2017107156 A1 WO2017107156 A1 WO 2017107156A1
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WO
WIPO (PCT)
Prior art keywords
cell
neighboring cell
user terminal
neighboring
stored
Prior art date
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PCT/CN2015/098803
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English (en)
French (fr)
Inventor
汪文芳
李重锦
李磊
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201580070513.2A priority Critical patent/CN107211327B/zh
Priority to PCT/CN2015/098803 priority patent/WO2017107156A1/zh
Publication of WO2017107156A1 publication Critical patent/WO2017107156A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/34—Reselection control
    • H04W36/36—Reselection control by user or terminal equipment
    • H04W36/362—Conditional handover
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/34—Reselection control
    • H04W36/36—Reselection control by user or terminal equipment
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and a user terminal for controlling cell reselection.
  • the fourth-generation mobile communication technology when the user terminal resides in the 4G cell, if the network signal is found to be poor, the user terminal will initiate reselection to the 2G cell, and when the 2G cell is found not to be If the camping condition is met, or the low priority cell reselects the high priority cell, the user terminal returns to the 4G cell again, so that invalid cell reselection often occurs during cell reselection; The user terminal service is unstable, and frequent cell reselection increases the power consumption of the user terminal.
  • the embodiment of the invention discloses a method for controlling cell reselection and a user terminal, which can reduce invalid cell reselection, improve stability of user terminal service, and reduce power consumption of the user terminal.
  • a first aspect of the embodiments of the present invention discloses a method for controlling cell reselection, including:
  • the user terminal residing in the serving cell determines whether the neighboring cell is a pre-stored cell in the pre-stored cell list, and the service
  • the network standard of the cell is different from the network format of the neighboring cell, where the pre-stored cell is a cell that is pre-stored in the user terminal and does not meet a camping condition, where the serving cell is currently camped by the user terminal. a cell, where the neighboring cell is a cell that the user terminal can receive a signal;
  • the user terminal determines whether the time duration corresponding to the neighboring cell reaches the interval length of the preset re-selection, wherein the interval length of the preset re-selection is Allowing the user terminal to re-select the neighboring cell for reselection;
  • the user terminal prohibits reselecting the serving cell to the neighboring cell, and may initiate to other neighboring cells. Reselection operation. In this way, by performing multiple judgments on the neighboring cells to be reselected, it is possible to effectively reduce invalid cell reselection and reduce power consumption of the user terminal.
  • the cell list that is pre-stored by the user terminal further stores a minimum access threshold corresponding to the pre-stored cell.
  • the method further includes:
  • the user terminal determines whether the signal strength of the neighboring cell reaches a minimum access threshold corresponding to the neighboring cell pre-stored in the cell list, where a minimum access threshold corresponding to the neighboring cell a pre-stored minimum signal strength allowed to access the neighboring cell;
  • the signal strength of the neighboring cell does not reach the minimum access threshold corresponding to the neighboring cell pre-stored in the cell list, triggering the user terminal to perform the prohibition to reselect the serving cell to The step of the neighboring cell.
  • the accuracy of cell reselection can be improved by further judging the signal strength of neighboring cells.
  • the method further includes:
  • the user terminal When it is determined that the signal strength of the neighboring cell reaches a minimum access threshold corresponding to the neighboring cell pre-stored in the cell list, the user terminal reselects the serving cell to the neighboring cell Community
  • the user terminal performs a location update operation.
  • the neighboring cell is a pre-stored cell
  • the serving cell can still be reselected to the neighboring cell.
  • the user terminal determines Whether the neighboring cell is a pre-stored cell in the pre-stored cell list includes:
  • the user terminal acquires an LAI (Location Area Identification) of the neighboring cell, where one LAI uniquely identifies one cell;
  • LAI Location Area Identification
  • the user terminal determines whether the LAI of the neighboring cell is consistent with the LAI of a cell in the pre-stored cell list, where the LAI of multiple cells is pre-stored in the cell list, and the cells do not satisfy the camping condition.
  • the user terminal determines that the neighboring cell is a pre-stored cell
  • the user terminal can quickly determine whether the neighboring cell is a pre-stored cell by using the LAI of the neighboring cell before reselecting to the neighboring cell, and can reduce invalid cell reselection.
  • the method also includes:
  • the user terminal When it is determined that the neighboring cell is not a pre-stored cell, the user terminal reselects the serving cell to the neighboring cell;
  • the user terminal performs a location update operation when the neighboring cell satisfies the camping condition. In this way, the user terminal can quickly perform location update when the user terminal reselects from the serving cell to the neighboring cell, and completes a reselection process, so that the user terminal can perform voice call and other services normally in the neighboring cell.
  • the user terminal determines whether the neighboring cell meets a camping condition. ,include:
  • the user terminal acquires a minimum access threshold of the neighboring cell, where a minimum access threshold of the neighboring cell is a minimum signal strength that is allowed to access the neighboring cell, and the minimum access threshold is a user. Obtained by the terminal in the neighboring cell, if the neighboring cell is sent to the user terminal;
  • the user terminal determines whether the signal strength of the neighboring cell reaches the minimum access threshold
  • the user terminal determines that the neighboring cell meets a camping condition
  • the method further includes:
  • the user terminal When it is determined that the neighboring cell does not satisfy the camping condition, the user terminal reselects the serving cell from the neighboring cell;
  • the user terminal saves the identifier information of the neighboring cell to the cell list, where the identifier information of the neighboring cell includes an LAI of the neighboring cell and a minimum access threshold of the neighboring cell;
  • the user terminal time counts the neighboring cell.
  • the identifier information of the neighboring cell is stored in the user terminal, and the timing of the neighboring cell is started, and the time duration can be performed when the neighboring cell is reselected next time. The judgment to reduce invalid cell reselection.
  • the method further includes:
  • the user terminal deletes the identification information of the neighboring cell from the cell list when the time length corresponding to the neighboring cell reaches the interval length of the preset allowed reselection. In this way, the user terminal can try to reselect to the neighboring cell again, and deleting the identification information of the neighboring cell can release the user terminal memory in time.
  • the cell The number of cells of the same network system included in the list does not exceed a predetermined value.
  • the cell list may include cells of different network standards, but the number of cells in each network standard may not exceed a predetermined value. By limiting the number of cells, it is possible to effectively prevent excessive storage of cells and cause insufficient memory of the user terminal. .
  • the predetermined value is 32.
  • the user The terminal determines whether the neighboring cell is a pre-stored cell in a pre-stored cell list, the party The law also includes:
  • the user terminal acquires a signal strength of the neighboring cell
  • the user terminal determines whether the signal strength of the neighboring cell is greater than a preset threshold, where the preset threshold is obtained by the user terminal in the serving cell, for example, the serving cell is sent to the user terminal;
  • the user terminal determines that the neighboring cell meets a reselection condition; when the signal strength of the neighboring cell is not greater than the preset threshold The user terminal determines that the neighboring cell does not satisfy the reselection condition. In this way, before the cell reselection is initiated, the user equipment measures the signal strength of the neighboring cell to determine whether the neighboring cell satisfies the reselection condition, and can make the cell reselection more specific.
  • a second aspect of the embodiment of the present invention discloses a user terminal, including:
  • a first determining unit configured to determine, when the user terminal that is in the serving cell determines that the neighboring cell of the serving cell meets the reselection condition, whether the neighboring cell is pre-stored in the pre-stored cell list a cell, the network standard of the serving cell and the network format of the neighboring cell are different, wherein the pre-stored cell is a cell pre-stored in the user terminal and does not satisfy a camping condition, and the serving cell is the user a cell currently camped by the terminal, where the neighboring cell is a cell that the user terminal can receive a signal;
  • a second determining unit configured to: when the first determining unit determines that the neighboring cell is a pre-stored cell, determine whether a time duration corresponding to the neighboring cell reaches a preset interval for allowing reselection, where, Setting an interval duration for allowing reselection to be a duration for allowing the user terminal to reselect the neighboring cell;
  • control unit configured to, when the second determining unit determines that the time duration corresponding to the neighboring cell does not reach the interval duration of the preset allowed reselection, prohibiting reselecting the serving cell to the neighboring
  • the cell can initiate a reselection operation for other neighboring cells. In this way, by performing multiple judgments on the neighboring cells to be reselected, it is possible to effectively reduce invalid cell reselection and reduce power consumption of the user terminal.
  • the cell list that is pre-stored by the user terminal further stores a minimum access threshold corresponding to the pre-stored cell.
  • the user terminal further includes:
  • a third determining unit configured to, in the control unit, prohibit reselecting the serving cell to the neighbor Before the cell, determining whether the signal strength of the neighboring cell reaches a minimum access threshold corresponding to the neighboring cell pre-stored in the cell list, when the signal strength of the neighboring cell does not reach the cell list
  • the control unit is triggered to perform the operation of prohibiting reselecting the serving cell to the neighboring cell.
  • the accuracy of cell reselection can be improved by further judging the signal strength of neighboring cells.
  • the control unit is further configured to: when the third determining unit determines that the signal strength of the neighboring cell reaches a minimum access threshold corresponding to the neighboring cell pre-stored in the cell list, Dereferencing the serving cell to the neighboring cell;
  • the user terminal further includes:
  • the first execution unit is configured to perform a location update operation.
  • the neighboring cell is a pre-stored cell
  • the serving cell can still be reselected to the neighboring cell.
  • the first determining unit includes :
  • a first acquiring subunit configured to acquire a location identifier LAI of the neighboring cell, where one LAI uniquely identifies a cell;
  • a first determining sub-unit configured to determine whether the LAI of the neighboring cell is consistent with the LAI of a cell in the pre-stored cell list, where the LAI of the multiple cells is pre-stored in the cell list, and the cells are not a cell that satisfies the parking condition;
  • a first determining subunit configured to: when the first determining subunit determines that the LAI of the neighboring cell is consistent with the LAI of one cell in the cell list, determine that the neighboring cell is a pre-stored cell; or When the first determining subunit determines that the LAI of the neighboring cell is inconsistent with the LAI of each cell in the cell list, it is determined that the neighboring cell is not a pre-stored cell. In this way, the user terminal can quickly determine whether the neighboring cell is a pre-stored cell by using the LAI of the neighboring cell before reselecting to the neighboring cell, and can reduce invalid cell reselection.
  • the control unit is further configured to: when the first determining unit determines that the neighboring cell is not a pre-stored cell, reselect the serving cell to the neighboring cell;
  • the user terminal further includes:
  • a fourth determining unit configured to determine whether the neighboring cell meets a camping condition
  • a second execution unit configured to perform a location update operation when the fourth determining unit determines that the neighboring cell meets the camping condition.
  • the fourth determining unit includes:
  • a second acquiring sub-unit configured to acquire a minimum access threshold of the neighboring cell, where a minimum access threshold of the neighboring cell is a minimum signal strength that allows access to the neighboring cell, and the minimum access threshold
  • the limit value is obtained by the user terminal in the neighboring cell, for example, the neighboring cell is sent to the user terminal;
  • a second determining subunit configured to determine whether a signal strength of the neighboring cell reaches the minimum access threshold
  • a second determining subunit configured to: when the second determining subunit determines that the signal strength of the neighboring cell reaches the minimum access threshold, determine that the neighboring cell meets a camping condition; or When the second determining subunit determines that the signal strength of the neighboring cell does not reach the minimum access threshold, it is determined that the neighboring cell does not satisfy the camping condition.
  • the control unit is further configured to: when the fourth determining unit determines that the neighboring cell does not meet the camping condition, reselecting the serving cell from the neighboring cell;
  • the user terminal further includes:
  • a storage unit configured to save the identifier information of the neighboring cell to the cell list, where the identifier information of the neighboring cell includes an LAI of the neighboring cell and a minimum access threshold of the neighboring cell ;
  • a timing unit configured to time the neighboring cell. In this way, when the neighboring cell does not satisfy the stay bar And storing the identification information of the neighboring cell to the user terminal, and starting timing of the neighboring cell, and determining the time duration when the next cell is reselected to reduce the invalid cell weight selected.
  • the user terminal further includes:
  • a deleting unit configured to delete identifier information of the neighboring cell from the cell list when a time duration corresponding to the neighboring cell reaches an interval length of the preset allowed reselection. In this way, the user terminal can try to reselect to the neighboring cell again, and deleting the identification information of the neighboring cell can release the user terminal memory in time.
  • the cell The number of cells of the same network system included in the list does not exceed a predetermined value.
  • the cell list may include cells of different network standards, but the number of cells in each network standard may not exceed a predetermined value. By limiting the number of cells, it is possible to effectively prevent excessive storage of cells and cause insufficient memory of the user terminal. .
  • the predetermined value is 32.
  • the user The terminal also includes:
  • An acquiring unit configured to acquire, before the first determining unit determines whether the neighboring cell is a pre-stored cell in a pre-stored cell list, acquiring a signal strength of the neighboring cell;
  • a fifth determining unit configured to determine whether the signal strength of the neighboring cell is greater than a preset threshold, and when the signal strength of the neighboring cell is greater than the preset threshold, determining that the neighboring cell meets a reselection condition And determining, when the signal strength of the neighboring cell is not greater than the preset threshold, that the neighboring cell does not satisfy the reselection condition.
  • the preset threshold is obtained by the user terminal in the serving cell, for example, the serving cell is sent to the user terminal. In this way, before the cell reselection is initiated, the user equipment measures the signal strength of the neighboring cell to determine whether the neighboring cell satisfies the reselection condition, and can make the cell reselection more specific.
  • a third aspect of the embodiments of the present invention discloses a user terminal, including: a processor, a memory, a network interface, and a communication bus;
  • the memory is used to store programs and data
  • the communication bus is configured to establish connection communication between the processor, the memory, and the network interface;
  • the processor is configured to invoke the program stored in the memory, and perform the following steps:
  • the user terminal residing in the serving cell determines that the neighboring cell of the serving cell satisfies the reselection condition, determining whether the neighboring cell is pre-stored in the cell list included in the data stored in the memory a cell, the network standard of the serving cell and the network format of the neighboring cell are different, wherein the pre-stored cell is a cell that does not meet a camping condition, and the serving cell is a cell currently camped by the user terminal,
  • the neighboring cell is a cell that the user terminal can receive the signal;
  • the neighboring cell is a pre-stored cell in the cell list included in the data stored in the memory, determining whether the time duration corresponding to the neighboring cell reaches a preset permission included in the data stored in the memory
  • the interval length of the reselection wherein the interval length of the preset re-selection is a length of time for allowing the user terminal to reselect the neighboring cell
  • the cell list included in the data stored in the memory further includes a minimum access gate corresponding to the pre-stored cell. a limit value, the processor prohibits reselecting the serving cell to the neighboring cell, and is further configured to invoke the program stored in the memory, and perform the following steps:
  • the processor is further configured to invoke the program stored in the memory, Perform the following steps:
  • the serving cell can still be reselected to the neighboring cell.
  • the processor determines The manner in which the neighboring cell is a pre-stored cell in the cell list included in the data stored in the memory is specifically:
  • the user terminal can quickly determine whether the neighboring cell is a pre-stored cell by using the LAI of the neighboring cell before reselecting to the neighboring cell, and can reduce invalid cell reselection.
  • the processor determines that the neighboring cell is not a pre-stored cell in the cell list included in the data stored in the memory, the processor is further configured to invoke the program stored in the memory, and perform the following steps:
  • a location update operation is performed when the neighboring cell satisfies the camping condition.
  • the user terminal can quickly perform location update when the user terminal reselects from the serving cell to the neighboring cell, and completes a reselection process, so that the user terminal can perform voice call and other services normally in the neighboring cell.
  • the processor determines whether the neighboring cell meets a camping condition.
  • the specific way is:
  • a minimum access threshold of the neighboring cell where a minimum access threshold of the neighboring cell is a minimum signal strength that is allowed to access the neighboring cell, and the minimum access threshold is
  • the user terminal obtains the neighboring cell, for example, the neighboring cell is sent to the user terminal;
  • the processor when the processor determines the adjacent When the cell does not satisfy the camping condition, the processor is further configured to invoke the program stored in the memory, and perform the following steps:
  • the identifier information of the neighboring cell includes an LAI of the neighboring cell and a minimum access threshold of the neighboring cell ;
  • Timing the neighboring cell When the neighboring cell does not meet the camping condition, the identifier information of the neighboring cell is stored in the user terminal, and the timing of the neighboring cell is started, and the time duration can be performed when the neighboring cell is reselected next time. The judgment to reduce invalid cell reselection.
  • the processor is further configured to invoke the program stored in the memory, Perform the following steps:
  • the number of cells of the same network system included in the list does not exceed a predetermined value.
  • the cell list may include cells of different network standards, but the number of cells in each network standard may not exceed a predetermined value. By limiting the number of cells, it is possible to effectively prevent excessive storage of cells and cause insufficient memory of the user terminal. .
  • the predetermined value is 32.
  • the device Before determining whether the neighboring cell is a pre-stored cell in the cell list included in the data stored in the memory, the device is further configured to invoke the program stored in the memory, and perform the following steps:
  • the user equipment measures the signal strength of the neighboring cell to determine whether the neighboring cell satisfies the reselection condition, and can make the cell reselection more specific.
  • the user terminal that is in the serving cell determines that the neighboring cell of the serving cell satisfies the reselection condition, it is determined whether the neighboring cell is a pre-stored cell in the pre-stored cell list, where the serving cell
  • the network standard is different from the network standard of the neighboring cell.
  • the user terminal determines whether the time duration corresponding to the neighboring cell reaches the preset interval of allowing re-selection.
  • the user terminal prohibits the reselection of the serving cell to the neighboring cell, and may initiate a reselection operation for other cells. It can be seen that, in the embodiment of the present invention, before performing cell reselection of a different system, multiple conditions are determined by the cell to be reselected, which can effectively reduce invalid cell reselection, improve the stability of the user terminal service, and effectively Reduce the power consumption of the user terminal.
  • FIG. 1 is a schematic diagram of a network architecture disclosed in an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of a method for controlling cell reselection according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of another method for controlling cell reselection according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a user terminal according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of another user terminal according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of still another user terminal according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of still another user terminal according to an embodiment of the present invention.
  • the embodiment of the invention discloses a method for controlling cell reselection and a user terminal, which can effectively reduce invalid cell reselection by performing multiple condition determination on the cell to be reselected before performing cell reselection of the different system. And effectively reduce the power consumption of the user terminal. The details are described below separately.
  • FIG. 1 is a schematic diagram of a network architecture disclosed in an embodiment of the present invention.
  • at least two base stations such as a base station 1, a base station 2, and at least one user terminal, may be included.
  • One base station can communicate with multiple user terminals; one base station can cover one or more cells, for example, base station 1 covers cell 1 and base station 2 covers cell 2.
  • the communication connection between the base station and the user terminal can be regarded as a cell and Communication connection of the user terminal.
  • FIG. 1 is a schematic diagram of a network architecture disclosed in an embodiment of the present invention.
  • at least two base stations such as a base station 1, a base station 2, and at least one user terminal, may be included.
  • One base station can communicate with multiple user terminals; one base station can cover one or more cells, for example, base station 1 covers cell 1 and base station 2 covers cell 2.
  • the communication connection between the base station and the user terminal can be regarded as a cell and Communication connection of the user terminal.
  • FIG. 1 is a schematic diagram of
  • the user terminal may include a mobile phone, a palmtop computer, a tablet computer, a personal digital assistant (PDA), a mobile internet device (MID), a car terminal, or a wearable device.
  • PDA personal digital assistant
  • MID mobile internet device
  • a car terminal or a wearable device.
  • cell reselection refers to a process in which a user terminal selects a best cell to provide a service signal by monitoring signal quality of a neighboring cell and a currently camped serving cell in an idle mode.
  • cell 1 and cell 2 are two adjacent cells, and there may be partial overlap between the two cells.
  • the base station 1 and the base station 2 are different base stations, so that the network standard of the cell 1 is different from the network standard of the cell 2, so that cell reselection under the different system can be constructed.
  • the user terminal camps on the cell 1, that is, the user terminal is connected to the cell 1, the cell 1 is the serving cell.
  • the user terminal When the signal strength of the cell 1 is low, the user terminal initiates cell reselection, and may be related to the cell 1.
  • the neighboring cell 2 performs reselection.
  • the user terminal when the user terminal initiates reselection from the cell 1 to the cell 2, when the cell 2 satisfies the reselection condition, the user terminal reselects from the cell 1 to the cell 2, and further determines whether the cell 2 is satisfied.
  • the camping condition if satisfied, the user terminal performs location update to update to cell 2; if not, it returns to cell 1.
  • the rule that the user terminal reselects to the high priority according to the low priority will return to the cell 1, so that the cell reselection will cause
  • the user terminal service is unstable, such as unable to answer/call the phone during reselection.
  • the information of the cell that does not meet the camping condition during the historical reselection is stored in the user terminal, and the timer for the cell is started.
  • the user terminal When the user terminal initiates reselection to a certain cell, it may first determine whether the cell is stored in the user terminal, and if not, may reselect to the cell; if yes, it may further determine whether the time corresponding to the cell ends. If it is over, it can be re-selected to the cell. If not, the cell is abandoned and the reselection of other neighboring cells is initiated.
  • the network architecture shown in FIG. 1 it is possible to effectively reduce invalid cell reselection by performing multiple conditions determination on the cell to be reselected before performing cell reselection of the different system. Improve the stability of the user terminal service (such as improving the call rate, etc.) and effectively reduce the power consumption of the user terminal.
  • FIG. 2 is a schematic flowchart of a method for controlling cell reselection according to an embodiment of the present invention. As shown in FIG. 2, the method for controlling cell reselection may include the following steps:
  • step 201 When the user terminal that is in the serving cell determines that the neighboring cell of the serving cell meets the reselection condition, the user terminal determines whether the neighboring cell is a pre-stored cell in the pre-stored cell list, and if yes, step 202 is performed. If not, step 204 is performed.
  • the serving cell is a cell that the user terminal currently camps on, that is, a cell to which the user terminal is currently connected, and the neighboring cell is a cell that the user terminal can receive the signal.
  • the serving cell and the neighboring cell are two cells of different network standards, that is, the network standard of the serving cell and the network format of the neighboring cell are different.
  • the serving cell initiates a reselection to the neighboring cell, which can be regarded as a reselection of the cell under the different system.
  • the serving cell may be an LTE (Long Term Evolution) cell
  • the neighboring cell may be a GSM (Global System for Mobile communication) cell or a TD-SCDMA (Time Division-Synchronous Code Division). Multiple, time-division synchronous code division multiple access) cell
  • the serving cell may be a WCDMA (Wideband Code Division Multiple Access) cell
  • the neighboring cell may be a GSM cell, an LTE cell, or the like.
  • the method described in FIG. 2 may further include the following steps:
  • the user terminal acquires the signal strength of the currently camped serving cell
  • the user terminal determines whether the signal strength of the serving cell is greater than a preset strength
  • the user terminal initiates reselection from the serving cell to the neighboring cell of the serving cell.
  • the preset strength may be obtained by the user terminal in the serving cell, for example, the serving cell is sent to the user terminal.
  • the operation of the user terminal residing in the serving cell to initiate the cell reselection may be initiated by the user terminal according to the signal strength of the serving cell, that is, when the signal strength of the serving cell is lower than the preset strength, the cell reselection may be automatically initiated.
  • the user may initiate a cell reselection by manually controlling the user terminal, for example, the user may manually reset the network of the user terminal to trigger the user end. The terminal performs cell reselection.
  • the specific manner in which the user terminal initiates reselection from the serving cell to the neighboring cell of the serving cell may be that the user terminal measures the neighboring cell to determine whether the neighboring cell satisfies the reselection condition.
  • the user terminal residing in the serving cell determines whether the neighboring cell of the serving cell satisfies the reselection condition, and may include the following steps:
  • the user terminal acquires the signal strength of the neighboring cell
  • the user terminal determines whether the signal strength of the neighboring cell is greater than a preset threshold
  • the user terminal determines that the neighboring cell satisfies the reselection condition.
  • the user terminal may determine whether the neighboring cell satisfies the reselection condition by measuring the signal strength of the neighboring cell. When the content is satisfied, the subsequent step may be further performed. When not satisfied, the neighboring cell may be abandoned. And can initiate measurements on the next neighboring cell.
  • the preset threshold is obtained by the user terminal in the serving cell, for example, the serving cell is sent to the user terminal.
  • the user terminal when the neighboring cell satisfies the reselection condition, the user terminal further determines whether the neighboring cell is a pre-stored cell, and the pre-stored cell is not pre-stored in the cell list in the user terminal, and is not selected in the previous reselection.
  • the information of the cell that does not satisfy the camping condition when the historical cell is reselected may be stored in the user terminal.
  • the user terminal determines whether the time duration corresponding to the neighboring cell reaches the interval length of the preset allowable reselection. If yes, step 204 is performed; if not, step 203 is performed.
  • the user terminal when the user terminal determines that the neighboring cell is a pre-stored cell, it may further determine whether the time duration corresponding to the neighboring cell reaches the interval length of the preset allowable reselection, and preset the interval duration for allowing the reselection. The length of time to allow the user terminal to reselect the neighboring cell.
  • the cell when the user terminal determines that a certain cell does not meet the camping condition, the cell may be stored, and the timing of the cell is started (if a timer is set for the cell), when the time duration is reached.
  • the interval length of the reselection is allowed to be preset (or the timer expires)
  • the user terminal may retry to reselect to the cell; when the timing duration does not reach the preset interval for allowing reselection (or the timer is not finished) At this time, the user terminal can give up reselection to the cell.
  • the preset interval for allowing reselection may be 5 min, 10 min, etc., which may be set by the user, or may be The user terminal system is set by default.
  • the user equipment prohibits reselecting the serving cell to the neighboring cell.
  • the user terminal when the neighboring cell is a pre-stored cell, and the time duration corresponding to the neighboring cell does not reach the preset interval for allowing the reselection, the user terminal prohibits reselecting the currently connected serving cell to the Adjacent cells, and may initiate a reselection operation for the next neighboring cell.
  • the user terminal reselects the serving cell to the neighboring cell.
  • the user terminal may serve the serving cell. Reselect to the neighboring cell.
  • the user terminal residing in the serving cell determines that the neighboring cell of the serving cell satisfies the reselection condition, it is determined whether the neighboring cell is a pre-stored cell in the pre-stored cell list, where The network standard of the serving cell is different from the network standard of the neighboring cell.
  • the user terminal determines whether the time duration corresponding to the neighboring cell reaches the preset interval of allowing reselection, when the neighboring cell corresponds to When the time duration of the preset does not reach the preset interval length of the reselection, the user terminal prohibits the reselection of the serving cell to the neighboring cell, and may initiate a reselection operation for other cells.
  • FIG. 3 is a schematic flowchart diagram of another method for controlling cell reselection according to an embodiment of the present invention. As shown in FIG. 3, the method for controlling cell reselection may include the following steps:
  • step 304 when the user terminal residing in the serving cell determines that the neighboring cell of the serving cell satisfies the reselection condition, the user terminal determines whether the neighboring cell is a pre-stored cell in the pre-stored cell list, and if yes, executing step 302 If not, step 304 is performed.
  • the network standard of the serving cell is different from the network standard of the neighboring cell
  • the pre-stored cell is a cell that is pre-stored in the user terminal and does not satisfy the camping condition.
  • the cell identifier pre-stored by the user terminal stores the location identifier LAI of the pre-stored cell, and step 301 determines whether the neighbor cell is pre-stored.
  • the specific implementation manner of the pre-stored cell in the zone list may include the following steps:
  • the user terminal acquires the location identifier LAI of the neighboring cell
  • the user terminal determines whether the LAI of the neighboring cell is consistent with the LAI of one cell in the pre-stored cell list;
  • the user terminal determines that the neighboring cell is a pre-stored cell; when the LAI of the neighboring cell and the LAI of each cell in the cell list are both In case of inconsistency, the user terminal determines that the neighboring cell is not a pre-stored cell.
  • the LAI is used to uniquely identify a location area globally, where an LAI uniquely identifies a cell.
  • the LAI can be composed of three parts, namely MCC (Mobile Country Code), MNC (Mobile Network Code), and cell identifier CELLID.
  • MCC Mobile Country Code
  • MNC Mobile Network Code
  • CELLID can refer to the number ID of the coverage area of the user terminal signal, that is, which cell of the base station the user terminal is in.
  • the cell list may be pre-established in the user terminal. Initially, the cell list is empty. When the user terminal detects a cell that does not satisfy the camping condition when performing cell reselection, the cell may be LAI, etc. The identification information is saved to the cell list.
  • the user terminal determines whether the time duration corresponding to the neighboring cell reaches the interval length of the preset allowable reselection. If yes, step 304 is performed; if not, step 303 is performed.
  • the interval duration for allowing reselection is a duration for allowing the user terminal to reselect the neighboring cell.
  • the cell list pre-stored by the user terminal further stores a minimum access threshold corresponding to the pre-stored cell
  • the method described in FIG. 3 may further include the following steps:
  • the user terminal determines whether the signal strength of the neighboring cell reaches the minimum access threshold corresponding to the neighboring cell pre-stored in the cell list, and if yes, step 304 is performed; if no, step 303 is performed.
  • the minimum access threshold of the cell ie, the minimum signal strength allowed to access the cell
  • the user terminal may perform step 303 to prohibit the reselection of the serving cell to the neighboring cell; when the signal strength of the neighboring cell measured by the user terminal is higher than the minimum corresponding to the neighboring cell stored in the cell list, When the threshold is accessed, the neighboring cell may be considered to have a camping condition.
  • the user terminal may perform step 304 to reselect the serving cell to the neighboring cell, and may further perform step 309 to perform a location update operation.
  • step 34) may be performed before the step 302, the step 34) may be performed after the step 302, and the step 34) may be performed in the same manner as the step 302.
  • the user equipment prohibits reselecting the serving cell to the neighboring cell.
  • the user terminal reselects the serving cell to the neighboring cell.
  • step 309 is performed; if no, step 306 is performed.
  • the specific implementation manner that the user terminal determines whether the neighboring cell meets the camping condition may include the following steps:
  • the user terminal acquires a minimum access threshold of the neighboring cell
  • the user terminal determines whether the signal strength of the neighboring cell reaches the minimum access threshold
  • the user terminal determines that the neighboring cell meets a camping condition; when the signal strength of the neighboring cell does not reach the minimum access threshold, the user The terminal determines that the neighboring cell does not satisfy the camping condition.
  • the minimum access threshold of the neighboring cell is the minimum signal strength allowed to access the neighboring cell.
  • the minimum access threshold is obtained by the user terminal in the neighboring cell, for example, the neighboring cell is sent to the user terminal.
  • the user terminal reselects from the neighboring cell to the serving cell.
  • the user terminal when the neighboring cell does not meet the camping condition, the user terminal returns to the serving cell, and may start measuring the next neighboring cell.
  • the user terminal saves the identifier information of the neighboring cell to the cell list.
  • the user terminal time counts the neighboring cell.
  • the neighboring cell when the neighboring cell does not meet the camping condition, the neighboring cell may be The identification information is stored in the cell list of the user terminal.
  • the identification information of the neighboring cell may include, but not limited to, an LAI of the neighboring cell, a minimum access threshold of the neighboring cell, and the like.
  • the timing of the neighboring cell may also be turned on.
  • the method described in FIG. 3 may further include the following steps:
  • the user terminal deletes the identification information of the neighboring cell from the cell list when the time length corresponding to the neighboring cell reaches the interval length of the preset allowed reselection, or the time corresponding to the neighboring cell ends.
  • the user terminal may delete the neighboring cell saved in the cell list.
  • the identification information can of course also be retained without deletion.
  • the identification information of the neighboring cell is deleted from the cell list, and the memory of the user terminal can be released in time. After deleting the identification information of the neighboring cell, the user terminal may try to reselect to the neighboring cell again.
  • the number of cells having the same network standard that can be included in the cell list does not exceed a predetermined value.
  • the cell list may include cells of different network standards, but the number of cells in each network standard cannot exceed a predetermined value. By limiting the number of cells, it is possible to effectively prevent a shortage of stored cells and cause insufficient memory of the user terminal.
  • the predetermined value may be 32, that is, the number of cells in each network standard in the cell list does not exceed 32.
  • the user terminal performs a location update operation.
  • the user terminal when the neighboring cell meets the camping condition, the user terminal may perform a location update operation, and update the location of the user terminal from the serving cell to the neighboring cell, so that the user terminal can be in the neighboring cell.
  • FIG. 4 is a schematic structural diagram of a user terminal according to an embodiment of the present invention, which may be used to perform a method for controlling cell reselection disclosed in an embodiment of the present invention.
  • the user terminal may include:
  • the first determining unit 401 is configured to determine, when the user terminal residing in the serving cell determines that the neighboring cell of the serving cell satisfies the reselection condition, whether the neighboring cell is a pre-stored cell in the pre-stored cell list.
  • the serving cell is a cell in which the user terminal currently camps
  • the neighboring cell is a cell in which the user terminal can receive the signal
  • the serving cell and the neighboring cell are two cells of different network standards, that is, the serving cell
  • the network standard is different from the network format of the neighboring cell.
  • the serving cell initiates a reselection to the neighboring cell, which can be regarded as a reselection of the cell under the different system.
  • the pre-stored cell is a cell that is pre-stored in the cell list in the user terminal and does not satisfy the camping condition.
  • the information of the cell that does not satisfy the camping condition when the historical cell is reselected may be stored in the user terminal.
  • the second determining unit 402 is configured to determine, when the first determining unit 401 determines that the neighboring cell is a pre-stored cell, whether the time duration corresponding to the neighboring cell reaches an interval length of the preset allowable reselection.
  • the interval duration for allowing the reselection to be preset is a duration for allowing the user terminal to reselect the neighboring cell.
  • the control unit 403 is configured to, when the second determining unit 402 determines that the time duration corresponding to the neighboring cell does not reach the preset interval for allowing the reselection, to reselect the serving cell to the neighboring cell.
  • FIG. 5 is another user disclosed in the embodiment of the present invention.
  • the user terminal shown in FIG. 5 is further optimized based on the user terminal shown in FIG. 4. Compared with the user terminal shown in FIG. 4, the user terminal shown in FIG. 5 may further include:
  • the third determining unit 404 is configured to determine, before the control unit 403, reselects the serving cell to the neighboring cell, whether the signal strength of the neighboring cell reaches a minimum access gate corresponding to the neighboring cell pre-stored in the cell list. a limit value, when the signal strength of the neighboring cell does not reach the minimum access threshold corresponding to the neighboring cell pre-stored in the cell list, the trigger control unit 403 performs the above-mentioned prohibition to reselect the serving cell to the neighbor. The operation of the cell.
  • control unit 403 is further configured to: when the third determining unit 404 determines that the signal strength of the neighboring cell reaches a minimum access threshold corresponding to the neighboring cell pre-stored in the cell list, Reselecting the serving cell to the neighboring cell;
  • the user terminal shown in FIG. 5 may further include:
  • the first execution unit 405 is configured to perform a location update operation.
  • the user terminal shown in FIG. 5 may further include:
  • the obtaining unit 406 is configured to obtain the signal strength of the neighboring cell before the first determining unit 401 determines whether the neighboring cell is a pre-stored cell in the pre-stored cell list.
  • the fifth determining unit 407 is configured to determine whether the signal strength of the neighboring cell is greater than a preset threshold, and when the signal strength of the neighboring cell is greater than a preset threshold, determine that the neighboring cell meets the reselection condition.
  • the preset threshold is obtained by the user terminal in the serving cell, for example, the serving cell is sent to the user terminal.
  • the first determining unit 401 may include:
  • a first obtaining subunit 4011 configured to acquire a location identifier LAI of the neighboring cell
  • the first determining sub-unit 4012 is configured to determine whether the LAI of the neighboring cell is consistent with the LAI of one cell in the pre-stored cell list;
  • a first determining sub-unit 4013 configured to: when the first determining sub-unit 4012 determines that the LAI of the neighboring cell is consistent with the LAI of one cell in the cell list, determining that the neighboring cell is a pre-stored cell; or, when the first When the determining sub-unit 4012 determines that the LAI of the neighboring cell is inconsistent with the LAI of each cell in the cell list, it is determined that the neighboring cell is not a pre-stored cell.
  • one LAI uniquely identifies one cell
  • the LAI may include a mobile country number MCC, a mobile network number MNC, and a cell identifier CELLID.
  • control unit 403 is further configured to: when the first determining unit 401 determines that the neighboring cell is not a pre-stored cell, reselect from the serving cell to the neighboring cell; specifically, the control unit When the first determining unit 4013 determines that the neighboring cell is a pre-stored cell, the 403 reselects from the serving cell to the neighboring cell.
  • FIG. 6 is a schematic structural diagram of another user terminal according to an embodiment of the present disclosure, which may be used to perform a method for controlling cell reselection disclosed in the embodiment of the present invention.
  • the user terminal shown in FIG. 6 is further optimized based on the user terminal shown in FIG. 5.
  • the user terminal shown in FIG. 6 may further include:
  • the fourth determining unit 408 is configured to determine, after the control unit 403 reselects the serving cell to the neighboring cell, whether the neighboring cell meets the camping condition;
  • the executing unit 409 is configured to perform a location update operation when the fourth determining unit 408 determines that the neighboring cell meets the camping condition.
  • the fourth determining unit 408 may include:
  • a second obtaining sub-unit 4081 configured to acquire a minimum access threshold of the neighboring cell
  • the second determining subunit 4082 is configured to determine whether the signal strength of the neighboring cell reaches the minimum access threshold
  • a second determining subunit 4083 configured to: when the second determining subunit 4082 determines that the signal strength of the neighboring cell reaches the minimum access threshold, determine that the neighboring cell meets a camping condition; or, when the second determining When the subunit 4082 determines that the signal strength of the neighboring cell does not reach the minimum access threshold, it determines that the neighboring cell does not satisfy the camping condition.
  • the minimum access threshold of the neighboring cell is the minimum signal strength allowed to access the neighboring cell.
  • the minimum access threshold is obtained by the user terminal in the neighboring cell, for example, the neighboring cell is sent to the user terminal.
  • control unit 403 is further configured to: when the fourth determining unit 408 determines that the neighboring cell does not meet the camping condition, reselect the service cell from the neighboring cell;
  • the user terminal shown in FIG. 6 may further include:
  • the storage unit 410 is configured to save the identifier information of the neighboring cell to the cell list when the fourth determining unit 408 determines that the neighboring cell does not meet the camping condition, and the identifier information of the neighboring cell may include but not Limited to the LAI of the neighboring cell and the minimum access threshold of the neighboring cell;
  • the timing unit 411 is configured to time the neighboring cell.
  • the user terminal shown in FIG. 6 may further include:
  • the deleting unit 412 is configured to delete the identifier information of the neighboring cell from the cell list when the time duration corresponding to the neighboring cell reaches the interval length of the preset allowed reselection. This can release the memory of the user terminal in time.
  • the number of cells in the same network system included in the cell list does not exceed a predetermined value.
  • the cell list may include cells of different network standards, but the number of cells of each network standard may not exceed a predetermined value.
  • the predetermined value is 32.
  • the user terminal shown in FIG. 4 to FIG. 6 is implemented, and the cell weight of the different system is performed.
  • the multiple conditions are determined by the cell to be reselected, which can effectively reduce invalid cell reselection, improve the stability of the user terminal service, and effectively reduce the power consumption of the user terminal.
  • FIG. 7 is a schematic structural diagram of another user terminal according to an embodiment of the present invention, which may be used to perform a method for controlling cell reselection disclosed in the embodiment of the present invention.
  • the user terminal 700 may include at least one processor 701, such as a CPU (Central Processing Unit), at least one network interface 702, a memory 703, and the like. Among these, these components are communicatively coupled via one or more buses 704.
  • processor 701 such as a CPU (Central Processing Unit)
  • network interface 702 such as a CPU (Central Processing Unit)
  • memory 703 such as a programmable read-only memory
  • these components are communicatively coupled via one or more buses 704.
  • the structure of the user terminal shown in FIG. 7 does not constitute a limitation on the embodiment of the present invention. It may be a bus-shaped structure or a star-shaped structure, and may also include more than the illustration. Or fewer parts, or combine some parts, or different parts. among them:
  • the network interface 702 may include a wired interface, a wireless interface, etc., and may be used to communicate with a cell.
  • the memory 703 may be a high speed RAM memory or a non-volatile memory, such as at least one disk memory.
  • the memory 703 can also optionally be at least one storage device located remotely from the aforementioned processor 701.
  • the memory 703 as a computer storage medium may include an operating system, an application program, a network communication module, data, and the like, which are not limited in the embodiment of the present invention.
  • the processor 701 can be used to call an application stored in the memory 703 to perform the following operations:
  • the user terminal residing in the serving cell determines that the neighboring cell of the serving cell satisfies the reselection condition, it is determined whether the neighboring cell is a pre-stored cell in the cell list included in the data stored in the memory 703, and the network of the serving cell
  • the system is different from the network format of the neighboring cell, where the pre-stored cell is a cell that does not satisfy the camping condition;
  • the neighboring cell is a pre-stored cell in the cell list included in the data stored in the memory 703, it is determined whether the time duration corresponding to the neighboring cell reaches the preset allowable reselection interval included in the data stored in the memory 703. Duration, where the preset interval allowed for reselection is the allowable user terminal The length of time for reselecting the neighboring cell;
  • the serving cell When the time duration corresponding to the neighboring cell does not reach the interval length of the preset allowable reselection included in the data stored in the memory 703, the serving cell is prohibited from being reselected to the neighboring cell, and the neighboring cell is initiated. Reselect the operation.
  • the cell list included in the data stored in the memory 703 further stores a minimum access threshold corresponding to the pre-stored cell, and the processor 701 prohibits re-selecting the serving cell to the neighboring cell. It is also possible to call the application stored in the memory 703 and perform the following operations:
  • the processor 701 may also call an application stored in the memory 703 and perform the following operations:
  • control network interface 702 When it is determined that the signal strength of the neighboring cell reaches the minimum access threshold corresponding to the neighboring cell pre-stored in the cell list, the control network interface 702 reselects the serving cell to the neighboring cell;
  • the processor 701 determines whether the neighboring cell is a pre-stored cell in the cell list included in the data stored in the memory 703.
  • the control network interface 702 acquires a location identifier LAI of the neighboring cell, where one LAI uniquely identifies a cell;
  • the neighboring cell is inconsistent with the LAI of each cell in the cell list, it is determined that the neighboring cell is not a pre-stored cell.
  • the processor 701 may also invoke an application stored in the memory 703, and perform the following operations:
  • Control network interface 702 reselecting the serving cell to the neighboring cell
  • the specific implementation manner that the processor 701 determines whether the neighboring cell meets the camping condition may be:
  • the control network interface 702 obtains a minimum access threshold of the neighboring cell, where the minimum access threshold is obtained by the user terminal in the neighboring cell, for example, the neighboring cell is sent to the user terminal;
  • the processor 701 may also invoke an application stored in the memory 703 and perform the following operations:
  • Control network interface 702 reselects from the neighboring cell back to the serving cell;
  • the identifier information of the neighboring cell includes the LAI of the neighboring cell and a minimum access threshold of the neighboring cell;
  • the neighboring cell is timed.
  • the processor 701 may also call an application stored in the memory 703 and perform the following operations:
  • the identifier information of the neighboring cell is deleted from the cell list.
  • the number of cells in the same network system included in the cell list stored in the memory 703 does not exceed a predetermined value.
  • the cell list may include cells of different network standards, but the number of cells of each network standard may not exceed a predetermined value.
  • the predetermined value may be 32.
  • the processor 701 may also invoke an application stored in the memory 703, and execute the following: operating:
  • Control network interface 702 acquires the signal strength of the neighboring cell
  • the signal strength of the neighboring cell is not greater than a preset threshold included in the data stored in the memory 703, it is determined that the neighboring cell does not satisfy the reselection condition.
  • the user terminal introduced in the embodiment of the present invention may implement some or all of the processes in the method embodiment for controlling cell reselection introduced in conjunction with FIG. 2 or FIG.
  • the user terminal shown in FIG. 7 can perform multiple conditions determination on the cell to be reselected before performing cell reselection of the different system, thereby effectively reducing invalid cell reselection and improving the user.
  • Modules or sub-modules in all embodiments of the present invention may be implemented by a general-purpose integrated circuit, such as a CPU, or by an ASIC (Application Specific Integrated Circuit).
  • a general-purpose integrated circuit such as a CPU
  • ASIC Application Specific Integrated Circuit
  • the unit or subunit in the user terminal of the embodiment of the present invention may be combined according to actual needs. Division and deletion.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

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Abstract

本发明实施例公开了一种控制小区重选的方法及用户终端，其中，该方法包括：当驻留于服务小区的用户终端判断出服务小区的相邻小区满足重选条件时，用户终端判断该相邻小区是否为预先存储的小区列表中的预存小区，服务小区的网络制式和该相邻小区的网络制式不同；当该相邻小区为预存小区时，用户终端判断该相邻小区对应的计时时长是否达到预设允许重选的间隔时长；当该相邻小区对应的计时时长未达到预设允许重选的间隔时长时，用户终端禁止将服务小区重选至该相邻小区。实施本发明实施例，能够减少无效的小区重选，降低用户终端的功耗。

Description

一种控制小区重选的方法及用户终端 技术领域
本发明涉及通信技术领域，尤其涉及一种控制小区重选的方法及用户终端。
背景技术
为了能够更好地适应通信网络技术的发展，目前已允许各种制式的小区并存。但由于受网络覆盖的影响，用户终端经常会出现在不同制式的小区之间来回重选的问题，如2G(The 2nd Generation Mobile Communication Technology，第二代移动通信技术)小区和4G(The 4th Generation Mobile Communication Technology，第四代移动通信技术)小区的来回重选，当用户终端驻留在4G小区时，如果发现网络信号较差，用户终端会向2G小区发起重选，而当发现2G小区不满足驻留条件，或者低优先级小区向高优先级小区重选的规则，用户终端又重新返回4G小区，从而使得在进行小区重选时经常会出现无效的小区重选；此外，来回重选会造成用户终端业务的不稳定，且频繁的小区重选会增加用户终端的功耗。
发明内容
本发明实施例公开了一种控制小区重选的方法及用户终端，能够减少无效的小区重选，提升用户终端业务的稳定性且降低用户终端的功耗。
本发明实施例第一方面公开了一种控制小区重选的方法，包括：
当驻留于服务小区的用户终端判断出所述服务小区的相邻小区满足重选条件时，所述用户终端判断所述相邻小区是否为预先存储的小区列表中的预存小区，所述服务小区的网络制式和所述相邻小区的网络制式不同，其中，预存小区为所述用户终端中预先存储的且不满足驻留条件的小区，所述服务小区为所述用户终端当前驻留的小区，所述相邻小区为所述用户终端能接收到信号的小区；
当所述相邻小区为预存小区时，所述用户终端判断所述相邻小区对应的计时时长是否达到预设允许重选的间隔时长，其中，预设允许重选的间隔时长为 允许所述用户终端重新对所述相邻小区进行重选的时长；
若所述相邻小区对应的计时时长未达到所述预设允许重选的间隔时长，所述用户终端禁止将所述服务小区重选至所述相邻小区，并可以发起对其他相邻小区的重选操作。这样，通过对待重选的相邻小区进行多重判断，能够有效减少无效的小区重选，并降低用户终端的功耗。
结合本发明实施例第一方面，在本发明实施例第一方面的第一种可能的实施方式中，所述用户终端预先存储的小区列表中还存储有预存小区对应的最小接入门限值，所述用户终端禁止将所述服务小区重选至所述相邻小区之前，所述方法还包括：
所述用户终端判断所述相邻小区的信号强度是否达到所述小区列表中预先存储的所述相邻小区对应的最小接入门限值，其中，所述相邻小区对应的最小接入门限值为预先存储的允许接入该相邻小区的最小信号强度；
若所述相邻小区的信号强度未达到所述小区列表中预先存储的所述相邻小区对应的最小接入门限值，触发所述用户终端执行所述的禁止将所述服务小区重选至所述相邻小区的步骤。通过进一步判断相邻小区的信号强度可以提高小区重选的准确度。
结合本发明实施例第一方面的第一种可能的实施方式，在本发明实施例第一方面的第二种可能的实施方式中，所述方法还包括：
当判断出所述相邻小区的信号强度达到所述小区列表中预先存储的所述相邻小区对应的最小接入门限值时，所述用户终端将所述服务小区重选至所述相邻小区；
所述用户终端执行位置更新操作。在相邻小区为预存小区的情况下，该相邻小区的信号强度达到允许接入该相邻小区的最小接入门限值时，仍然可以将服务小区重选至该相邻小区。
结合本发明实施例第一方面或第一方面的第一种或第二种可能的实施方式，在本发明实施例第一方面的第三种可能的实施方式中，所述用户终端判断所述相邻小区是否为预先存储的小区列表中的预存小区，包括：
所述用户终端获取所述相邻小区的LAI(Location Area Identification，位置识别码)，其中，一个LAI唯一标识一个小区；
所述用户终端判断所述相邻小区的LAI是否与预先存储的小区列表中的一个小区的LAI一致，其中，小区列表中预先存储有多个小区的LAI，这些小区均为不满足驻留条件的小区；
当所述相邻小区的LAI与所述小区列表中的一个小区的LAI一致时，所述用户终端确定所述相邻小区为预存小区；
当所述相邻小区的LAI与所述小区列表中的每一个小区的LAI均不一致时，确定所述相邻小区不为预存小区。这样能使用户终端在重选至相邻小区前，通过相邻小区的LAI快速地确定相邻小区是否为预存小区，能够减少无效的小区重选。
结合本发明实施例第一方面或第一方面的第一种至第三种中任一种可能的实施方式，在本发明实施例第一方面的第四种可能的实施方式中，所述方法还包括：
当判断出所述相邻小区不为预存小区时，所述用户终端将所述服务小区重选至所述相邻小区；
所述用户终端判断所述相邻小区是否满足驻留条件；
当所述相邻小区满足所述驻留条件时，所述用户终端执行位置更新操作。这样可以在用户终端从服务小区重选至相邻小区时快速进行位置更新，完成一次重选过程，以使用户终端在该相邻小区能够正常进行语音通话等业务。
结合本发明实施例第一方面的第四种可能的实施方式，在本发明实施例第一方面的第五种可能的实施方式中，所述用户终端判断所述相邻小区是否满足驻留条件，包括：
所述用户终端获取所述相邻小区的最小接入门限值，其中，该相邻小区的最小接入门限值为允许接入该相邻小区的最小信号强度，该最小接入门限值为用户终端在该相邻小区下获取到的，如该相邻小区下发给用户终端的；
所述用户终端判断所述相邻小区的信号强度是否达到所述最小接入门限值；
当所述相邻小区的信号强度达到所述最小接入门限值时，所述用户终端确定所述相邻小区满足驻留条件；
当所述相邻小区的信号强度未达到所述最小接入门限值时，确定所述相邻 小区不满足驻留条件。
结合本发明实施例第一方面的第四种或第五种可能的实施方式，在本发明实施例第一方面的第六种可能的实施方式中，所述方法还包括：
当判断出所述相邻小区不满足所述驻留条件时，所述用户终端从所述相邻小区重选回所述服务小区；
所述用户终端将所述相邻小区的标识信息保存至所述小区列表中，所述相邻小区的标识信息包括所述相邻小区的LAI和所述相邻小区的最小接入门限值；
所述用户终端对所述相邻小区进行计时。这样当相邻小区不满足驻留条件时，将该相邻小区的标识信息存储至用户终端，并启动对该相邻小区的计时，能够在下一次对该相邻小区进行重选时进行计时时长的判断，以减少无效的小区重选。
结合本发明实施例第一方面的第六种可能的实施方式，在本发明实施例第一方面的第七种可能的实施方式中，所述方法还包括：
当所述相邻小区对应的计时时长达到所述预设允许重选的间隔时长时，所述用户终端从所述小区列表中删除所述相邻小区的标识信息。这样用户终端可以再次尝试重选到该相邻小区，并且删除相邻小区的标识信息能够及时释放用户终端内存。
结合本发明实施例第一方面或第一方面的第一种至第七种中任一种可能的实施方式，在本发明实施例第一方面的第八种可能的实施方式中，所述小区列表中包含的相同网络制式的小区的数量不超过预定值。所述小区列表中可以包括不同网络制式的小区，但每种网络制式的小区个数均不能超过预定值，通过限定小区的数量能够有效防止存储的小区过多而造成用户终端内存的不足的情况。
结合本发明实施例第一方面的第八种可能的实施方式，在本发明实施例第一方面的第九种可能的实施方式中，所述预定值为32。
结合本发明实施例第一方面或第一方面的第一种至第九种中任一种可能的实施方式，在本发明实施例第一方面的第十种可能的实施方式中，所述用户终端判断所述相邻小区是否为预先存储的小区列表中的预存小区之前，所述方 法还包括：
所述用户终端获取所述相邻小区的信号强度；
所述用户终端判断所述相邻小区的信号强度是否大于预设阈值，其中，该预设阈值为所述用户终端在服务小区下获取到的，如服务小区下发给用户终端的；
当所述相邻小区的信号强度大于所述预设阈值时，所述用户终端判断出所述相邻小区满足重选条件；当所述相邻小区的信号强度不大于所述预设阈值时，所述用户终端判断出所述相邻小区不满足重选条件。这样，用户终端在发起小区重选前，对相邻小区的信号强度进行测量，以判断该相邻小区是否满足重选条件，能够使得小区重选更具针对性。
本发明实施例第二方面公开了一种用户终端，包括：
第一判断单元，用于当驻留于服务小区的所述用户终端判断出所述服务小区的相邻小区满足重选条件时，判断所述相邻小区是否为预先存储的小区列表中的预存小区，所述服务小区的网络制式和所述相邻小区的网络制式不同，其中，预存小区为所述用户终端中预先存储的且不满足驻留条件的小区，所述服务小区为所述用户终端当前驻留的小区，所述相邻小区为所述用户终端能接收到信号的小区；
第二判断单元，用于当所述第一判断单元判断出所述相邻小区为预存小区时，判断所述相邻小区对应的计时时长是否达到预设允许重选的间隔时长，其中，预设允许重选的间隔时长为允许所述用户终端重新对所述相邻小区进行重选的时长；
控制单元，用于当所述第二判断单元判断出所述相邻小区对应的计时时长未达到所述预设允许重选的间隔时长时，禁止将所述服务小区重选至所述相邻小区，并可以发起对其他相邻小区的重选操作。这样，通过对待重选的相邻小区进行多重判断，能够有效减少无效的小区重选，并降低用户终端的功耗。
结合本发明实施例第二方面，在本发明实施例第二方面的第一种可能的实施方式中，所述用户终端预先存储的小区列表中还存储有预存小区对应的最小接入门限值，所述用户终端还包括：
第三判断单元，用于在所述控制单元禁止将所述服务小区重选至所述相邻 小区之前，判断所述相邻小区的信号强度是否达到所述小区列表中预先存储的所述相邻小区对应的最小接入门限值，当所述相邻小区的信号强度未达到所述小区列表中预先存储的所述相邻小区对应的最小接入门限值时，则触发所述控制单元执行所述的禁止将所述服务小区重选至所述相邻小区的操作。通过进一步判断相邻小区的信号强度可以提高小区重选的准确度。
结合本发明实施例第二方面的第一种可能的实施方式，在本发明实施例第二方面的第二种可能的实施方式中，
所述控制单元，还用于当所述第三判断单元判断出所述相邻小区的信号强度达到所述小区列表中预先存储的所述相邻小区对应的最小接入门限值时，将所述服务小区重选至所述相邻小区；
所述用户终端还包括：
第一执行单元，用于执行位置更新操作。在相邻小区为预存小区的情况下，该相邻小区的信号强度达到允许接入该相邻小区的最小接入门限值时，仍然可以将服务小区重选至该相邻小区。
结合本发明实施例第二方面或第二方面的第一种或第二种可能的实施方式，在本发明实施例第二方面的第三种可能的实施方式中，所述第一判断单元包括：
第一获取子单元，用于获取所述相邻小区的位置识别码LAI，其中，一个LAI唯一标识一个小区；
第一判断子单元，用于判断所述相邻小区的LAI是否与预先存储的小区列表中的一个小区的LAI一致，其中，小区列表中预先存储有多个小区的LAI，这些小区均为不满足驻留条件的小区；
第一确定子单元，用于当所述第一判断子单元判断出所述相邻小区的LAI与所述小区列表中的一个小区的LAI一致时，确定所述相邻小区为预存小区；或者，当所述第一判断子单元判断出所述相邻小区的LAI与所述小区列表中的每一个小区的LAI均不一致时，确定所述相邻小区不为预存小区。这样能使用户终端在重选至相邻小区前，通过相邻小区的LAI快速地确定相邻小区是否为预存小区，能够减少无效的小区重选。
结合本发明实施例第二方面或第二方面的第一种至第三种中任一种可能 的实施方式，在本发明实施例第二方面的第四种可能的实施方式中，
所述控制单元，还用于当所述第一判断单元判断出所述相邻小区不为预存小区时，将所述服务小区重选至所述相邻小区；
所述用户终端还包括：
第四判断单元，用于判断所述相邻小区是否满足驻留条件；
第二执行单元，用于当所述第四判断单元判断出所述相邻小区满足所述驻留条件时，执行位置更新操作。这样可以在用户终端将服务小区重选至相邻小区时快速进行位置更新，完成一次重选过程，以使用户终端在该相邻小区能够正常进行语音通话等业务。
结合本发明实施例第二方面的第四种可能的实施方式，在本发明实施例第二方面的第五种可能的实施方式中，所述第四判断单元包括：
第二获取子单元，用于获取所述相邻小区的最小接入门限值，其中，该相邻小区的最小接入门限值为允许接入该相邻小区的最小信号强度，该最小接入门限值为用户终端在该相邻小区下获取到的，如该相邻小区下发给用户终端的；
第二判断子单元，用于判断所述相邻小区的信号强度是否达到所述最小接入门限值；
第二确定子单元，用于当所述第二判断子单元判断出所述相邻小区的信号强度达到所述最小接入门限值时，确定所述相邻小区满足驻留条件；或者，用于当所述第二判断子单元判断出所述相邻小区的信号强度未达到所述最小接入门限值时，确定所述相邻小区不满足驻留条件。
结合本发明实施例第二方面的第四种或第五种可能的实施方式，在本发明实施例第二方面的第六种可能的实施方式中，
所述控制单元，还用于所述第四判断单元判断出所述相邻小区不满足所述驻留条件时，从所述相邻小区重选回所述服务小区；
所述用户终端还包括：
存储单元，用于将所述相邻小区的标识信息保存至所述小区列表中，所述相邻小区的标识信息包括所述相邻小区的LAI和所述相邻小区的最小接入门限值；
计时单元，用于对所述相邻小区进行计时。这样当相邻小区不满足驻留条 件时，将该相邻小区的标识信息存储至用户终端，并启动对该相邻小区的计时，能够在下一次对该相邻小区进行重选时进行计时时长的判断，以减少无效的小区重选。
结合本发明实施例第二方面的第六种可能的实施方式，在本发明实施例第二方面的第七种可能的实施方式中，所述用户终端还包括：
删除单元，用于当所述相邻小区对应的计时时长达到所述预设允许重选的间隔时长时，从所述小区列表中删除所述相邻小区的标识信息。这样用户终端可以再次尝试重选到该相邻小区，并且删除相邻小区的标识信息能够及时释放用户终端内存。
结合本发明实施例第二方面或第二方面的第一种至第七种中任一种可能的实施方式，在本发明实施例第二方面的第八种可能的实施方式中，所述小区列表中包含的相同网络制式的小区的数量不超过预定值。所述小区列表中可以包括不同网络制式的小区，但每种网络制式的小区个数均不能超过预定值，通过限定小区的数量能够有效防止存储的小区过多而造成用户终端内存的不足的情况。
结合本发明实施例第二方面的第八种可能的实施方式，在本发明实施例第二方面的第九种可能的实施方式中，所述预定值为32。
结合本发明实施例第二方面或第二方面的第一种至第九种中任一种可能的实施方式，在本发明实施例第二方面的第十种可能的实施方式中，所述用户终端还包括：
获取单元，用于在所述第一判断单元判断所述相邻小区是否为预先存储的小区列表中的预存小区之前，获取所述相邻小区的信号强度；
第五判断单元，用于判断所述相邻小区的信号强度是否大于预设阈值，当所述相邻小区的信号强度大于所述预设阈值时，判断出所述相邻小区满足重选条件；当所述相邻小区的信号强度不大于所述预设阈值时，判断出所述相邻小区不满足重选条件。其中，该预设阈值为所述用户终端在服务小区下获取到的，如服务小区下发给用户终端的。这样，用户终端在发起小区重选前，对相邻小区的信号强度进行测量，以判断该相邻小区是否满足重选条件，能够使得小区重选更具针对性。
本发明实施例第三方面公开了一种用户终端，包括：处理器、存储器、网络接口以及通信总线；
其中，所述存储器用于存储程序和数据；
所述通信总线用于建立所述处理器、所述存储器和所述网络接口之间的连接通信；
所述处理器用于调用所述存储器存储的程序，执行如下步骤：
当驻留于服务小区的所述用户终端判断出所述服务小区的相邻小区满足重选条件时，判断所述相邻小区是否为所述存储器中存储的数据所包括的小区列表中的预存小区，所述服务小区的网络制式和所述相邻小区的网络制式不同，其中，预存小区为不满足驻留条件的小区，所述服务小区为所述用户终端当前驻留的小区，所述相邻小区为所述用户终端能接收到信号的小区；
当所述相邻小区为所述存储器中存储的数据所包括的小区列表中的预存小区时，判断所述相邻小区对应的计时时长是否达到所述存储器中存储的数据所包括的预设允许重选的间隔时长，其中，预设允许重选的间隔时长为允许所述用户终端重新对所述相邻小区进行重选的时长；
当所述相邻小区对应的计时时长未达到所述预设允许重选的间隔时长时，禁止将所述服务小区重选至所述相邻小区，并发起对其他相邻小区的重选操作。这样，通过对待重选的相邻小区进行多重判断，能够有效减少无效的小区重选，并降低用户终端的功耗。
结合本发明实施例第三方面，在本发明实施例第三方面的第一种可能的实施方式中，所述存储器中存储的数据所包括的小区列表中还存储有预存小区对应的最小接入门限值，所述处理器禁止将所述服务小区重选至所述相邻小区之前，还用于调用所述存储器存储的程序，执行如下步骤：
判断所述相邻小区的信号强度是否达到所述小区列表中预先存储的所述相邻小区对应的最小接入门限值；
当所述相邻小区的信号强度未达到所述小区列表中预先存储的所述相邻小区对应的最小接入门限值时，触发执行所述的禁止将所述服务小区重选至所述相邻小区的步骤。通过进一步判断相邻小区的信号强度可以提高小区重选的准确度。
结合本发明实施例第三方面的第一种可能的实施方式，在本发明实施例第三方面的第二种可能的实施方式中，所述处理器还用于调用所述存储器存储的程序，执行如下步骤：
当判断出所述相邻小区的信号强度达到所述小区列表中预先存储的所述相邻小区对应的最小接入门限值时，控制所述网络接口将所述服务小区重选至所述相邻小区；
执行位置更新操作。在相邻小区为预存小区的情况下，该相邻小区的信号强度达到允许接入该相邻小区的最小接入门限值时，仍然可以将服务小区重选至该相邻小区。
结合本发明实施例第三方面或第三方面的第一种或第二种可能的实施方式，在本发明实施例第三方面的第三种可能的实施方式中，所述处理器判断所述相邻小区是否为所述存储器中存储的数据所包括的小区列表中的预存小区的方式具体为：
控制所述网络接口获取所述相邻小区的位置识别码LAI，其中，一个LAI唯一标识一个小区；
判断所述相邻小区的LAI是否与所述存储器中存储的数据所包括的小区列表中的一个小区的LAI一致，其中，小区列表中预先存储有多个小区的LAI，这些小区均为不满足驻留条件的小区；
当所述相邻小区的LAI与所述小区列表中的一个小区的LAI一致时，确定所述相邻小区为预存小区；
当所述相邻小区的LAI与所述小区列表中的每一个小区的LAI均不一致时，确定所述相邻小区不为预存小区。这样能使用户终端在重选至相邻小区前，通过相邻小区的LAI快速地确定相邻小区是否为预存小区，能够减少无效的小区重选。
结合本发明实施例第三方面或第三方面的第一种至第三种中任一种可能的实施方式，在本发明实施例第三方面的第四种可能的实施方式中，当所述处理器判断出所述相邻小区不为所述存储器中存储的数据所包括的小区列表中的预存小区时，所述处理器还用于调用所述存储器存储的程序，执行如下步骤：
控制所述网络接口将所述服务小区重选至所述相邻小区；
判断所述相邻小区是否满足驻留条件；
当所述相邻小区满足所述驻留条件时，执行位置更新操作。这样可以在用户终端从服务小区重选至相邻小区时快速进行位置更新，完成一次重选过程，以使用户终端在该相邻小区能够正常进行语音通话等业务。
结合本发明实施例第三方面的第四种可能的实施方式，在本发明实施例第三方面的第五种可能的实施方式中，所述处理器判断所述相邻小区是否满足驻留条件的方式具体为：
控制所述网络接口获取所述相邻小区的最小接入门限值，其中，该相邻小区的最小接入门限值为允许接入该相邻小区的最小信号强度，该最小接入门限值为用户终端在该相邻小区下获取到的，如该相邻小区下发给用户终端；
判断所述相邻小区的信号强度是否达到所述最小接入门限值；
当所述相邻小区的信号强度达到所述最小接入门限值时，确定所述相邻小区满足驻留条件；
当所述相邻小区的信号强度未达到所述最小接入门限值时，确定所述相邻小区不满足驻留条件。
结合本发明实施例第三方面的第四种或第五种可能的实施方式，在本发明实施例第三方面的第六种可能的实施方式中，当所述处理器判断出所述相邻小区不满足所述驻留条件时，所述处理器还用于调用所述存储器存储的程序，执行如下步骤：
控制所述网络接口从所述相邻小区重选回所述服务小区；
将所述相邻小区的标识信息保存至所述存储器中的所述小区列表中，所述相邻小区的标识信息包括所述相邻小区的LAI和所述相邻小区的最小接入门限值；
对所述相邻小区进行计时。这样当相邻小区不满足驻留条件时，将该相邻小区的标识信息存储至用户终端，并启动对该相邻小区的计时，能够在下一次对该相邻小区进行重选时进行计时时长的判断，以减少无效的小区重选。
结合本发明实施例第三方面的第六种可能的实施方式，在本发明实施例第三方面的第七种可能的实施方式中，所述处理器还用于调用所述存储器存储的程序，执行如下步骤：
当所述相邻小区对应的计时时长达到所述存储器中存储的所述预设允许重选的间隔时长时，从所述小区列表中删除所述相邻小区的标识信息。这样用户终端可以再次尝试重选到该相邻小区，并且删除相邻小区的标识信息能够及时释放用户终端内存。
结合本发明实施例第三方面或第三方面的第一种至第七种中任一种可能的实施方式，在本发明实施例第三方面的第八种可能的实施方式中，所述小区列表中包含的相同网络制式的小区的数量不超过预定值。所述小区列表中可以包括不同网络制式的小区，但每种网络制式的小区个数均不能超过预定值，通过限定小区的数量能够有效防止存储的小区过多而造成用户终端内存的不足的情况。
结合本发明实施例第三方面的第八种可能的实施方式，在本发明实施例第三方面的第九种可能的实施方式中，所述预定值为32。
结合本发明实施例第三方面或第三方面的第一种至第九种中任一种可能的实施方式，在本发明实施例第三方面的第十种可能的实施方式中，所述处理器判断所述相邻小区是否为所述存储器中存储的数据所包括的小区列表中的预存小区之前，还用于调用所述存储器存储的程序，执行如下步骤：
控制所述网络接口获取所述相邻小区的信号强度；
判断所述相邻小区的信号强度是否大于所述存储器中存储的数据所包括的预设阈值，其中，该预设阈值为所述用户终端在服务小区下获取到的，如服务小区下发给用户终端并存储在所述存储器中；
当所述相邻小区的信号强度大于所述预设阈值时，判断出所述相邻小区满足重选条件；当所述相邻小区的信号强度不大于所述预设阈值时，判断出所述相邻小区不满足重选条件。这样，用户终端在发起小区重选前，对相邻小区的信号强度进行测量，以判断该相邻小区是否满足重选条件，能够使得小区重选更具针对性。
本发明实施例中，当驻留于服务小区的用户终端判断出服务小区的相邻小区满足重选条件时，判断相邻小区是否为预先存储的小区列表中的预存小区，其中，服务小区的网络制式与相邻小区的网络制式不同，当相邻小区为预存小区时，用户终端判断相邻小区对应的计时时长是否达到预设的允许重选的间隔 时长，当相邻小区对应的计时时长未达到预设的允许重选的间隔时长时，用户终端禁止将服务小区重选至相邻小区，并可以发起对其他小区的重选操作。可见，实施本发明实施例，在进行异系统的小区重选前，通过对待重选的小区进行多重条件的判断，能够可以有效地减少无效的小区重选，提升用户终端业务的稳定性并有效降低用户终端的功耗。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例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发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例公开的一种网络架构示意图；
图2是本发明实施例公开的一种控制小区重选的方法的流程示意图；
图3是本发明实施例公开的另一种控制小区重选的方法的流程示意图；
图4是本发明实施例公开的一种用户终端的结构示意图；
图5是本发明实施例公开的另一种用户终端的结构示意图；
图6是本发明实施例公开的又一种用户终端的结构示意图；
图7是本发明实施例公开的又一种用户终端的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明实施例公开了一种控制小区重选的方法及用户终端，在进行异系统的小区重选前，通过对待重选的小区进行多重条件的判断，能够可以有效地减少无效的小区重选，并有效降低用户终端的功耗。以下分别进行详细说明。
为了更好的理解本发明实施例，下面先对本发明实施例公开的一种网络架构进行描述。请参阅图1，图1是本发明实施例公开的一种网络架构示意图。在 图1所示的网络架构中，可以包括至少两个基站，如基站1、基站2，至少一个用户终端。其中，一个基站可以与多个用户终端进行通信连接；一个基站可以覆盖一个或多个小区，如基站1覆盖小区1，基站2覆盖小区2，基站与用户终端的通信连接可以看作是小区与用户终端的通信连接。在图1所示的网络架构中，用户终端可以包括移动手机、掌上电脑、平板电脑、个人数字助理(Personal Digital Assistant，PDA)、移动互联网设备(Mobile Internet Device，MID)、车载终端或可穿戴设备(如智能手表、智能手环等)等各类终端，本发明实施例不作限定。
本发明实施例中，小区重选是指用户终端在空闲模式下通过监测相邻小区和当前驻留的服务小区的信号质量以选择一个最好的小区提供服务信号的过程。在图1所示的网络架构中，小区1与小区2为相邻的两个小区，且两个小区之间可以有部分重叠。基站1与基站2为不同制式的基站，以使得小区1的网络制式与小区2的网络制式不同，从而可以构造出异系统下的小区重选。当用户终端驻留在小区1，即用户终端与小区1进行连接，此时小区1即为服务小区，当小区1的信号强度较低时，用户终端发起小区重选，可以向与小区1相邻的小区2进行重选。在现有的小区重选过程中，用户终端从小区1向小区2发起重选时，当小区2满足重选条件时，用户终端从小区1重选至小区2，并进一步判断小区2是否满足驻留条件，若满足，则用户终端进行位置更新，以更新为小区2；若不满足，则重新返回小区1。然而，在下一次的重选时，又可能向小区2发起重选，从而造成无效的小区重选。此外，当小区1的优先级高于小区2时，即使小区2满足驻留条件，用户终端根据低优先级向高优先级重选的规则会返回至小区1，因此来回的小区重选会造成用户终端业务的不稳定，如重选期间无法接听/拨打电话等。本发明实施例中，将历史重选时不满足驻留条件的小区的信息存储在用户终端中，并开启针对该小区的定时器进行计时。当用户终端向某个小区发起重选时，可以先判断该小区是否存储在用户终端中，若否，则可以重选至该小区；若是，则可以进一步判断该小区对应的计时是否结束，若结束，则可以重选至该小区，若未结束，则放弃该小区，并发起对其他相邻小区的重选。通过实施图1所示的网络架构，在进行异系统的小区重选前，通过对待重选的小区进行多重条件的判断，能够可以有效地减少无效的小区重选，提 升用户终端业务的稳定性(如提升呼通率等)，并有效降低用户终端的功耗。
基于图1所示的网络架构，本发明实施例公开了一种控制小区重选的方法。请参阅图2，图2是本发明实施例公开的一种控制小区重选的方法的流程示意图。如图2所示，该控制小区重选的方法可以包括以下步骤：
201、当驻留于服务小区的用户终端判断出服务小区的相邻小区满足重选条件时，用户终端判断该相邻小区是否为预先存储的小区列表中的预存小区，若是，则执行步骤202；若否，则执行步骤204。
本发明实施例中，服务小区为用户终端当前驻留的小区，即用户终端当前所连接上的小区，相邻小区为用户终端能够接收到信号的小区。
本发明实施例中，服务小区和该相邻小区为不同网络制式的两个小区，即服务小区的网络制式和该相邻小区的网络制式不同。服务小区向相邻小区发起重选可以将其看作是异系统下小区的重选。例如，服务小区可以为LTE(Long Term Evolution，长期演进)小区，相邻小区可以为GSM(Global System for Mobile communication，全球移动通信系统)小区，也可以为TD-SCDMA(Time Division-Synchronous Code Division Multiple，时分同步码分多址)小区；服务小区可以为WCDMA(Wideband Code Division Multiple Access，宽带码分多址)小区，相邻小区可以为GSM小区，也可以为LTE小区等等。
作为一种可选的实施方式，在执行步骤201之前，图2所描述的方法还可以包括以下步骤：
21)用户终端获取当前驻留的服务小区的信号强度；
22)用户终端判断服务小区的信号强度是否大于预设强度；
23)当服务小区的信号强度不大于预设强度时，用户终端发起从服务小区向服务小区的相邻小区的重选。
在该实施方式中，预设强度可以为用户终端在服务小区下获取到的，如服务小区下发给用户终端的。驻留于服务小区的用户终端发起小区重选的操作可以为用户终端根据服务小区的信号强度自行发起的，即当服务小区的信号强度低于预设强度时可以自动发起小区重选。此外，也可以是人为控制用户终端发起小区重选，如用户可以手动对用户终端的网络进行重新设置，以触发用户终 端进行小区重选。
在该实施方式中，用户终端发起从服务小区向服务小区的相邻小区的重选的具体方式可以为用户终端对相邻小区进行测量，以判断相邻小区是否满足重选条件。
作为一种可选的实施方式，驻留于服务小区的用户终端判断服务小区的相邻小区是否满足重选条件可以包括以下步骤：
24)用户终端获取该相邻小区的信号强度；
25)用户终端判断该相邻小区的信号强度是否大于预设阈值；
26)当该相邻小区的信号强度大于预设阈值时，用户终端判断出该相邻小区满足重选条件。
在该实施方式中，用户终端可以通过测量相邻小区的信号强度来判断该相邻小区是否满足重选条件，当满足时，可以进一步执行后续步骤，当不满足时，可以放弃该相邻小区，并可以发起对下一个相邻小区的测量。预设阈值为用户终端在服务小区下获取到的，如服务小区下发给用户终端的。
本发明实施例中，当该相邻小区满足重选条件时，用户终端进一步判断该相邻小区是否为预存小区，预存小区为用户终端中预先存储在小区列表中的且前一次重选时不满足驻留条件的小区。可以将历史小区重选时不满足驻留条件的小区的信息存储在用户终端中。
202、用户终端判断该相邻小区对应的计时时长是否达到预设允许重选的间隔时长，若是，则执行步骤204；若否，则执行步骤203。
本发明实施例中，当用户终端判断出该相邻小区为预存小区时，可以进一步判断该相邻小区对应的计时时长是否达到预设允许重选的间隔时长，预设允许重选的间隔时长为允许用户终端重新对该相邻小区进行重选的时长。
本发明实施例中，当用户终端判断出某个小区不满足驻留条件时，可以将该小区进行存储，并开启对该小区的计时(如为该小区设置一个定时器)，当计时时长达到预设允许重选的间隔时长(或定时器计时结束)时，则用户终端可以重新尝试重选至该小区；当计时时长未达到预设允许重选的间隔时长(或定时器计时未结束)时，则用户终端可以放弃重选至该小区。其中，预设允许重选的间隔时长可以为5min、10min等等，可以是用户自行设置的，也可以是 用户终端系统默认设置好的。
203、用户终端禁止将服务小区重选至该相邻小区。
本发明实施例中，当该相邻小区为预存小区，且该相邻小区对应的计时时长未达到预设允许重选的间隔时长时，用户终端则禁止将当前连接的服务小区重选至该相邻小区，并可以发起对下一个相邻小区的重选操作。
204、用户终端将服务小区重选至该相邻小区。
本发明实施例中，当该相邻小区不为预存小区，或者该相邻小区为预存小区且该相邻小区对应的计时时长达到预设允许重选的间隔时长时，用户终端可以将服务小区重选至该相邻小区。
在图2所描述的方法中，当驻留于服务小区的用户终端判断出服务小区的相邻小区满足重选条件时，判断相邻小区是否为预先存储的小区列表中的预存小区，其中，服务小区的网络制式与相邻小区的网络制式不同，当相邻小区为预存小区时，用户终端判断相邻小区对应的计时时长是否达到预设的允许重选的间隔时长，当相邻小区对应的计时时长未达到预设的允许重选的间隔时长时，用户终端禁止将服务小区重选至相邻小区，并可以发起对其他小区的重选操作。通过实施图2所描述的方法，在进行异系统的小区重选前，通过对待重选的小区进行多重条件的判断，能够可以有效地减少无效的小区重选，提升用户终端业务的稳定性并有效降低用户终端的功耗。
基于图1所示的网络架构，本发明实施例公开了另一种控制小区重选的方法。请参阅图3，图3是本发明实施例公开的另一种控制小区重选的方法的流程示意图。如图3所示，该控制小区重选的方法可以包括以下步骤：
301、当驻留于服务小区的用户终端判断出服务小区的相邻小区满足重选条件时，用户终端判断该相邻小区是否为预先存储的小区列表中的预存小区，若是，则执行步骤302；若否，则执行步骤304。
本发明实施例中，服务小区的网络制式与相邻小区的网络制式不同，预存小区为用户终端中预先存储的且不满足驻留条件的小区。
作为一种可选的实施方式，用户终端预先存储的小区列表中存储有预存小区的位置识别码LAI，步骤301用户终端判断该相邻小区是否为预先存储的小 区列表中的预存小区的具体实施方式可以包括以下步骤：
31)用户终端获取该相邻小区的位置识别码LAI；
32)用户终端判断该相邻小区的LAI是否与预先存储的小区列表中的一个小区的LAI一致；
33)当该相邻小区的LAI与小区列表中的一个小区的LAI一致时，用户终端确定该相邻小区为预存小区；当该相邻小区的LAI与小区列表中的每一个小区的LAI均不一致时，用户终端确定该相邻小区不为预存小区。
在该实施方式中，LAI用于在全球范围内唯一标识一个位置区，这里一个LAI唯一标识一个小区。LAI可以由3部分组成，分别为MCC(Mobile Country Code，移动国家号)、MNC(Mobile Network Code，移动网络号)以及小区标识CELLID。其中，MCC唯一识别移动用户所属的国家，共3位，如中国为460；MNC共2位，如中国移动TD系统使用00，中国联通GSM系统使用01，中国移动GSM系统使用02，中国电信CDMA(Code Division Multiple Access，码分多址)系统使用03等等；CELLID可以指用户终端信号覆盖区域的编号ID，即用户终端在哪个基站的哪个小区下。
在该实施方式中，可以在用户终端中预先建立小区列表，初始时，小区列表为空，当用户终端进行小区重选时检测到不满足驻留条件的小区时，可以将该小区的LAI等标识信息保存至该小区列表中。
302、用户终端判断该相邻小区对应的计时时长是否达到预设允许重选的间隔时长，若是，则执行步骤304；若否，则执行步骤303。
本发明实施例中，预设允许重选的间隔时长为允许用户终端对该相邻小区进行重选的时长。
作为一种可选的实施方式，用户终端预先存储的小区列表中还存储有预存小区对应的最小接入门限值，图3所描述的方法还可以包括以下步骤：
34)用户终端判断该相邻小区的信号强度是否达到小区列表中预先存储的该相邻小区对应的最小接入门限值，若是，则执行步骤304；若否，则执行步骤303。
在该实施方式中，当用户终端进行小区重选时检测到不满足驻留条件的小区时，可以将该小区的最小接入门限值(即允许接入该小区的最小信号强度) 保存至小区列表中，当用户终端测量到的该相邻小区的信号强度低于小区列表中存储的该相邻小区对应的最小接入门限值时，则可以认为该相邻小区不具备驻留条件，此时，用户终端可以执行步骤303禁止将服务小区重选至该相邻小区；当用户终端测量到的该相邻小区的信号强度高于小区列表中存储的该相邻小区对应的最小接入门限值时，可以认为该相邻小区具备驻留条件，此时，用户终端可以执行步骤304将服务小区重选至该相邻小区，并可以进一步执行步骤309，以执行位置更新操作。
可以理解的是，步骤34)可以先于步骤302执行，步骤34)也可以后于步骤302执行，步骤34)还可以与步骤302同步执行，本发明实施例不作限定。
303、用户终端禁止将服务小区重选至该相邻小区。
304、用户终端将服务小区重选至该相邻小区。
305、用户终端判断该相邻小区是否满足驻留条件，若是，则执行步骤309；若否，则执行步骤306。
作为一种可选的实施方式中，步骤305用户终端判断该相邻小区是否满足驻留条件的具体实施方式可以包括以下步骤：
35)用户终端获取该相邻小区的最小接入门限值；
36)用户终端判断该相邻小区的信号强度是否达到该最小接入门限值；
37)当该相邻小区的信号强度达到该最小接入门限值时，用户终端确定该相邻小区满足驻留条件；当该相邻小区的信号强度未达到该最小接入门限值时，用户终端确定该相邻小区不满足驻留条件。
在该实施方式中，该相邻小区的最小接入门限值为允许接入该相邻小区的最小信号强度。该最小接入门限值为用户终端在该相邻小区下获取到的，如该相邻小区下发给用户终端的。
306、用户终端从该相邻小区重选回服务小区。
本发明实施例中，当该相邻小区不满足驻留条件时，用户终端返回服务小区，并可以开始对下一个相邻小区进行测量。
307、用户终端将该相邻小区的标识信息保存至小区列表中。
308、用户终端对该相邻小区进行计时。
本发明实施例中，当该相邻小区不满足驻留条件时，可以将该相邻小区的 标识信息存储至用户终端的小区列表中。该相邻小区的标识信息可以包括但不限定该相邻小区的LAI和该相邻小区的最小接入门限值等等。此外，在保存该相邻小区的标识信息的同时，还可以开启对该相邻小区的计时。
作为一种可选的实施方式，图3所描述的方法还可以包括以下步骤：
38)当该相邻小区对应的计时时长达到预设允许重选的间隔时长，或者该相邻小区对应的计时结束时，用户终端从小区列表中删除该相邻小区的标识信息。
在该实施方式中，当该相邻小区对应的计时时长达到预设允许重选的间隔时长，或者该相邻小区对应的计时结束时，用户终端可以删除保存在小区列表中的该相邻小区的标识信息，当然也可以保留不进行删除。将该相邻小区的标识信息从小区列表中进行删除，可以及时释放用户终端的内存。当删除该相邻小区的标识信息后，用户终端可以再次尝试重选至该相邻小区。
可选的，小区列表中可以包括的具有相同网络制式的小区的数量不超过预定值。小区列表中可以包括不同网络制式的小区，但每种网络制式的小区个数均不能超过预定值，通过限定小区的数量能够有效防止存储的小区过多而造成用户终端内存的不足的情况。
可选的，该预定值可以为32，即小区列表中每种网络制式的小区个数不超过32个。
309、用户终端执行位置更新操作。
本发明实施例中，当该相邻小区满足驻留条件时，用户终端可以进行位置更新操作，将用户终端的位置由服务小区更新到该相邻小区，以使用户终端在该相邻小区能够正常进行语音通话等业务。
本发明实施例中，通过实施图3所描述的方法，在进行异系统的小区重选前，通过对待重选的小区进行多重条件的判断，能够可以有效地减少无效的小区重选，提升用户终端业务的稳定性并有效降低用户终端的功耗。
基于图1所示的网络架构，本发明实施例公开了一种用户终端。请参阅图4，图4是本发明实施例公开的一种用户终端的结构示意图，可以用于执行本发明实施例公开的控制小区重选的方法。如图4所示，该用户终端可以包括：
第一判断单元401，用于当驻留于服务小区的用户终端判断出服务小区的相邻小区满足重选条件时，判断该相邻小区是否为预先存储的小区列表中的预存小区。
本发明实施例中，服务小区为用户终端当前驻留的小区，相邻小区为用户终端能够接收到信号的小区，服务小区和该相邻小区为不同网络制式的两个小区，即服务小区的网络制式和该相邻小区的网络制式不同。服务小区向相邻小区发起重选可以将其看作是异系统下小区的重选。
本发明实施例中，预存小区为用户终端中预先存储在小区列表中的，且不满足驻留条件的小区。可以将历史小区重选时不满足驻留条件的小区的信息存储在用户终端中。
第二判断单元402，用于当第一判断单元401判断出该相邻小区为预存小区时，判断该相邻小区对应的计时时长是否达到预设允许重选的间隔时长。
本发明实施例中，预设允许重选的间隔时长为允许用户终端重新对该相邻小区进行重选的时长。
控制单元403，用于当第二判断单元402判断出该相邻小区对应的计时时长未达到预设允许重选的间隔时长时，禁止将服务小区重选至该相邻小区。
作为一种可选的实施方式，用户终端预先存储的小区列表中还存储有预存小区对应的最小接入门限值，请一并参阅图5，图5是本发明实施例公开的另一种用户终端的结构示意图，可以用于执行本发明实施例公开的控制小区重选的方法。其中，图5所示的用户终端是在图4所示的用户终端的基础上进一步优化得到的。与图4所示的用户终端相比，图5所示的用户终端还可以包括：
第三判断单元404，用于在控制单元403禁止将服务小区重选至该相邻小区之前，判断该相邻小区的信号强度是否达到小区列表中预先存储的该相邻小区对应的最小接入门限值，当该相邻小区的信号强度未达到小区列表中预先存储的该相邻小区对应的最小接入门限值时，则触发控制单元403执行上述的禁止将服务小区重选至该相邻小区的操作。
作为一种可选的实施方式，控制单元403，还用于当第三判断单元404判断出该相邻小区的信号强度达到小区列表中预先存储的该相邻小区对应的最小接入门限值时，将服务小区重选至该相邻小区；
相应地，图5所示的用户终端还可以包括：
第一执行单元405，用于执行位置更新操作。
作为一种可选的实施方式，图5所示的用户终端还可以包括：
获取单元406，用于在第一判断单元401判断该相邻小区是否为预先存储的小区列表中的预存小区之前，获取该相邻小区的信号强度。
第五判断单元407，用于判断该相邻小区的信号强度是否大于预设阈值，当该相邻小区的信号强度大于预设阈值时，判断出该相邻小区满足重选条件。
其中，预设阈值为用户终端在服务小区下获取到的，如服务小区下发给用户终端的。
作为一种可选的实施方式，第一判断单元401可以包括：
第一获取子单元4011，用于获取该相邻小区的位置识别码LAI；
第一判断子单元4012，用于判断该相邻小区的LAI是否与预先存储的小区列表中的一个小区的LAI一致；
第一确定子单元4013，用于当第一判断子单元4012判断出该相邻小区的LAI与小区列表中的一个小区的LAI一致时，确定该相邻小区为预存小区；或者，当第一判断子单元4012判断出该相邻小区的LAI与小区列表中的每一个小区的LAI均不一致时，确定该相邻小区不为预存小区。
在该实施方式中，一个LAI唯一标识一个小区，LAI中可以包括移动国家号MCC、移动网络号MNC以及小区标识CELLID。
作为一种可选的实施方式，控制单元403，还用于当第一判断单元401判断出该相邻小区不为预存小区时，从服务小区重选至该相邻小区；具体地，控制单元403在第一确定单元4013确定出该相邻小区为预存小区时，从服务小区重选至该相邻小区。
相应地，请一并参阅图6，图6是本发明实施例公开的又一种用户终端的结构示意图，可以用于执行本发明实施例公开的控制小区重选的方法。其中，图6所示的用户终端是在图5所示的用户终端的基础上进一步优化得到的。与图5所示的用户终端相比，图6所示的用户终端还可以包括：
第四判断单元408，用于在控制单元403将服务小区重选至该相邻小区之后，判断该相邻小区是否满足驻留条件；
执行单元409，用于当第四判断单元408判断出该相邻小区满足驻留条件时，执行位置更新操作。
作为一种可选的实施方式，第四判断单元408可以包括：
第二获取子单元4081，用于获取该相邻小区的最小接入门限值；
第二判断子单元4082，用于判断该相邻小区的信号强度是否达到该最小接入门限值；
第二确定子单元4083，用于当第二判断子单元4082判断出该相邻小区的信号强度达到该最小接入门限值时，确定该相邻小区满足驻留条件；或者，当第二判断子单元4082判断出该相邻小区的信号强度未达到该最小接入门限值时，确定该相邻小区不满足驻留条件。
在该实施方式中，该相邻小区的最小接入门限值为允许接入该相邻小区的最小信号强度。该最小接入门限值为用户终端在该相邻小区下获取到的，如该相邻小区下发给用户终端的。
作为一种可选的实施方式，控制单元403，还用于当第四判断单元408判断出该相邻小区不满足驻留条件时，从该相邻小区重选回服务小区；
相应地，图6所示的用户终端还可以包括：
存储单元410，用于当第四判断单元408判断出该相邻小区不满足驻留条件时，将该相邻小区的标识信息保存至小区列表中，该相邻小区的标识信息可以包括但不限于该相邻小区的LAI和该相邻小区的最小接入门限值；
计时单元411，用于对该相邻小区进行计时。
作为一种可选的实施方式，图6所示的用户终端还可以包括：
删除单元412，用于当该相邻小区对应的计时时长达到预设允许重选的间隔时长时，从小区列表中删除该相邻小区的标识信息。这样可以及时释放用户终端的内存。
作为一种可选的实施方式，小区列表中包含的相同网络制式的小区的数量不超过预定值。小区列表中可以包括不同网络制式的小区，但每种网络制式的小区个数均不能超过预定值。
作为一种可选的实施方式，预定值为32。
本发明实施例中，实施图4至图6所示的用户终端，在进行异系统的小区重 选前，通过对待重选的小区进行多重条件的判断，能够可以有效地减少无效的小区重选，提升用户终端业务的稳定性并有效降低用户终端的功耗。
基于图1所示的网络架构，本发明实施例公开了又一种用户终端。请参阅图7，图7是本发明实施例公开的又一种用户终端的结构示意图，可以用于执行本发明实施例公开的控制小区重选的方法。如图7所示，该用户终端700可以包括：至少一个处理器701，例如CPU(Central Processing Unit，中央处理器)，至少一个网络接口702，存储器703等组件。其中，这些组件通过一条或多条总线704进行通信连接。本领域技术人员可以理解，图7中示出的用户终端的结构并不构成对本发明实施例的限定，它既可以是总线形结构，也可以是星型结构，还可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。其中：
本发明实施例中，网络接口702可以包括有线接口和无线接口等，可以用于与小区进行通信。
本发明实施例中，存储器703可以是高速RAM存储器，也可以是非易失性存储器(non-volatile memory)，例如至少一个磁盘存储器。存储器703可选的还可以是至少一个位于远离前述处理器701的存储装置。如图7所示，作为一种计算机存储介质的存储器703中可以包括操作系统、应用程序、网络通信模块和数据等，本发明实施例不作限定。
在图7所示的用户终端中，处理器701可以用于调用存储器703中存储的应用程序以执行以下操作：
当驻留于服务小区的用户终端判断出服务小区的相邻小区满足重选条件时，判断该相邻小区是否为存储器703中存储的数据所包括的小区列表中的预存小区，服务小区的网络制式和该相邻小区的网络制式不同，其中，预存小区为不满足驻留条件的小区；
当该相邻小区为存储器703中存储的数据所包括的小区列表中的预存小区时，判断该相邻小区对应的计时时长是否达到存储器703中存储的数据所包括的预设允许重选的间隔时长，其中，预设允许重选的间隔时长为允许用户终端 对该相邻小区进行重选的时长；
当该相邻小区对应的计时时长未达到存储器703中存储的数据所包括的预设允许重选的间隔时长时，禁止将服务小区重选至该相邻小区，并发起对其他相邻小区的重选操作。
作为一种可选的实施方式，存储器703中存储的数据所包括的小区列表中还存储有预存小区对应的最小接入门限值，处理器701禁止将服务小区重选至该相邻小区之前，还可以调用存储器703中存储的应用程序，并执行以下操作：
判断该相邻小区的信号强度是否达到小区列表中预先存储的该相邻小区对应的最小接入门限值；
当该相邻小区的信号强度未达到小区列表中预先存储的该相邻小区对应的最小接入门限值时，触发执行上述的禁止将服务小区重选至该相邻小区的操作。
作为一种可选的实施方式，处理器701还可以调用存储器703中存储的应用程序，并执行以下操作：
当判断出该相邻小区的信号强度达到小区列表中预先存储的该相邻小区对应的最小接入门限值时，控制网络接口702将服务小区重选至该相邻小区；
执行位置更新操作。
作为一种可选的实施方式，处理器701判断该相邻小区是否为存储器703中存储的数据所包括的小区列表中的预存小区的具体实施方式可以为：
控制网络接口702获取该相邻小区的位置识别码LAI，其中，一个LAI唯一标识一个小区；
判断该相邻小区的LAI是否与存储器703预先存储的数据所包括的小区列表中的一个小区的LAI一致，其中，小区列表中预先存储有多个小区的LAI，这些小区均为不满足驻留条件的小区；
当该相邻小区的LAI与该小区列表中的一个小区的LAI一致时，确定该相邻小区为预存小区；
当该相邻小区的LAI与该小区列表中的每一个小区的LAI均不一致时，确定该相邻小区不为预存小区。
作为一种可选的实施方式，当处理器701判断出该相邻小区不为预存小区时，处理器701还可以调用存储器703中存储的应用程序，并执行以下操作：
控制网络接口702将服务小区重选至该相邻小区；
判断该相邻小区是否满足驻留条件；
当该相邻小区满足驻留条件时，执行位置更新操作。
作为一种可选的实施方式，处理器701判断该相邻小区是否满足驻留条件的具体实施方式可以为：
控制网络接口702获取该相邻小区的最小接入门限值，其中，该最小接入门限值为用户终端在该相邻小区下获取到的，如该相邻小区下发给用户终端的；
判断该相邻小区的信号强度是否达到该最小接入门限值；
当该相邻小区的信号强度达到该最小接入门限值时，确定该相邻小区满足驻留条件；
当该相邻小区的信号强度未达到该最小接入门限值时，确定该相邻小区不满足驻留条件。
作为一种可选的实施方式，当处理器701判断出该相邻小区不满足驻留条件时，处理器701还可以调用存储器703中存储的应用程序，并执行以下操作：
控制网络接口702从该相邻小区重选回服务小区；
将该相邻小区的标识信息保存至存储器703中的小区列表中，该相邻小区的标识信息包括该相邻小区的LAI和该相邻小区的最小接入门限值；
对该相邻小区进行计时。
作为一种可选的实施方式，处理器701还可以调用存储器703中存储的应用程序，并执行以下操作：
当该相邻小区对应的计时时长达到存储器703中存储的预设允许重选的间隔时长时，从小区列表中删除该相邻小区的标识信息。
作为一种可选的实施方式，存储器703中存储的小区列表中包含的相同网络制式的小区的数量不超过预定值。小区列表中可以包括不同网络制式的小区，但每种网络制式的小区个数均不能超过预定值。
作为一种可选的实施方式，预定值可以为32。
作为一种可选的实施方式，处理器701判断该相邻小区是否为存储器703中存储的数据所包括的小区列表中的预存小区之前，还可以调用存储器703中存储的应用程序，并执行以下操作：
控制网络接口702获取该相邻小区的信号强度；
判断该相邻小区的信号强度是否大于存储器703中存储的数据所包括的预设阈值，其中，预设阈值为用户终端在服务小区下获取到的，如服务小区下发给用户终端并存储至存储器703中；
当该相邻小区的信号强度大于存储器703中存储的数据所包括的预设阈值时，判断出该相邻小区满足重选条件；
当该相邻小区的信号强度不大于存储器703中存储的数据所包括的预设阈值时，判断出该相邻小区不满足重选条件。
具体地，本发明实施例中介绍的用户终端可以实施本发明结合图2或图3介绍的控制小区重选的方法实施例中的部分或全部流程。
本发明实施例中，实施图7所示的用户终端，在进行异系统的小区重选前，通过对待重选的小区进行多重条件的判断，能够可以有效地减少无效的小区重选，提升用户终端业务的稳定性并有效降低用户终端的功耗。
本发明所有实施例中的模块或子模块，可以通过通用集成电路，例如CPU，或通过ASIC(Application Specific Integrated Circuit，专用集成电路)来实现。
需要说明的是，对于前述的各个方法实施例，为了简单描述，故将其都表述为一系列的动作组合，但是本领域技术人员应该知悉，本发明并不受所描述的动作顺序的限制，因为依据本发明，某一些步骤可以采用其他顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中所描述的实施例均属于优选实施例，所涉及的动作和模块并不一定是本发明所必须的。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详细描述的部分，可以参见其他实施例的相关描述。
本发明实施例的方法中的步骤可以根据实际需要进行顺序调整、合并和删减。
本发明实施例的用户终端中的单元或子单元可以根据实际需要进行合并、 划分和删减。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成，所述的程序可存储于一计算机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施例的流程。其中，所述的存储介质可为磁碟、光盘、只读存储记忆体(Read-Only Memory，ROM)或随机存取存储器(Random Access Memory，简称RAM)等。
以上对本发明实施例所公开的一种控制小区重选的方法及用户终端进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。

Claims (33)

  1. 一种控制小区重选的方法，其特征在于，包括：
    当驻留于服务小区的用户终端判断出所述服务小区的相邻小区满足重选条件时，所述用户终端判断所述相邻小区是否为预先存储的小区列表中的预存小区，所述服务小区的网络制式和所述相邻小区的网络制式不同；
    当所述相邻小区为预存小区时，所述用户终端判断所述相邻小区对应的计时时长是否达到预设允许重选的间隔时长；
    当所述相邻小区对应的计时时长未达到所述预设允许重选的间隔时长时，所述用户终端禁止将所述服务小区重选至所述相邻小区。
  2. 根据权利要求1所述的方法，其特征在于，所述用户终端预先存储的小区列表中还存储有预存小区对应的最小接入门限值，所述用户终端禁止将所述服务小区重选至所述相邻小区之前，所述方法还包括：
    所述用户终端判断所述相邻小区的信号强度是否达到所述小区列表中预先存储的所述相邻小区对应的最小接入门限值；
    若所述相邻小区的信号强度未达到所述小区列表中预先存储的所述相邻小区对应的最小接入门限值，所述用户终端禁止将所述服务小区重选至所述相邻小区。
  3. 根据权利要求2所述的方法，其特征在于，所述方法还包括：
    当判断出所述相邻小区的信号强度达到所述小区列表中预先存储的所述相邻小区对应的最小接入门限值时，所述用户终端将所述服务小区重选至所述相邻小区；
    所述用户终端执行位置更新操作。
  4. 根据权利要求1至3任一项所述的方法，其特征在于，所述用户终端判断所述相邻小区是否为预先存储的小区列表中的预存小区，包括：
    所述用户终端获取所述相邻小区的位置识别码LAI；
    所述用户终端判断所述相邻小区的LAI是否与预先存储的小区列表中的 一个小区的LAI一致；
    当所述相邻小区的LAI与所述小区列表中的一个小区的LAI一致时，所述用户终端确定所述相邻小区为预存小区。
  5. 根据权利要求1至4任一项所述的方法，其特征在于，所述方法还包括：
    当判断出所述相邻小区不为预存小区时，所述用户终端将所述服务小区重选至所述相邻小区；
    所述用户终端判断所述相邻小区是否满足驻留条件；
    当所述相邻小区满足所述驻留条件时，所述用户终端执行位置更新操作。
  6. 根据权利要求5所述的方法，其特征在于，所述用户终端判断所述相邻小区是否满足驻留条件，包括：
    所述用户终端获取所述相邻小区的最小接入门限值；
    所述用户终端判断所述相邻小区的信号强度是否达到所述最小接入门限值；
    当所述相邻小区的信号强度达到所述最小接入门限值时，所述用户终端确定所述相邻小区满足驻留条件。
  7. 根据权利要求5或6所述的方法，其特征在于，所述方法还包括：
    当判断出所述相邻小区不满足所述驻留条件时，所述用户终端从所述相邻小区重选回所述服务小区；
    所述用户终端将所述相邻小区的标识信息保存至所述小区列表中，所述相邻小区的标识信息包括所述相邻小区的LAI和所述相邻小区的最小接入门限值；
    所述用户终端对所述相邻小区进行计时。
  8. 根据权利要求7所述的方法，其特征在于，所述方法还包括：
    当所述相邻小区对应的计时时长达到所述预设允许重选的间隔时长时，所述用户终端从所述小区列表中删除所述相邻小区的标识信息。
  9. 根据权利要求1至8任一项所述的方法，其特征在于，所述小区列表中包含的相同网络制式的小区的数量不超过预定值。
  10. 根据权利要求9所述的方法，其特征在于，所述预定值为32。
  11. 根据权利要求1至10任一项所述的方法，其特征在于，所述用户终端判断所述相邻小区是否为预先存储的小区列表中的预存小区之前，所述方法还包括：
    所述用户终端获取所述相邻小区的信号强度；
    所述用户终端判断所述相邻小区的信号强度是否大于预设阈值；
    当所述相邻小区的信号强度大于所述预设阈值时，所述用户终端判断出所述相邻小区满足重选条件。
  12. 一种用户终端，其特征在于，包括：
    第一判断单元，用于当驻留于服务小区的所述用户终端判断出所述服务小区的相邻小区满足重选条件时，判断所述相邻小区是否为预先存储的小区列表中的预存小区，所述服务小区的网络制式和所述相邻小区的网络制式不同；
    第二判断单元，用于当所述第一判断单元判断出所述相邻小区为预存小区时，判断所述相邻小区对应的计时时长是否达到预设允许重选的间隔时长；
    控制单元，用于当所述第二判断单元判断出所述相邻小区对应的计时时长未达到所述预设允许重选的间隔时长时，禁止将所述服务小区重选至所述相邻小区。
  13. 根据权利要求12所述的用户终端，其特征在于，所述用户终端预先存储的小区列表中还存储有预存小区对应的最小接入门限值，所述用户终端还包括：
    第三判断单元，用于在所述控制单元禁止将所述服务小区重选至所述相邻小区之前，判断所述相邻小区的信号强度是否达到所述小区列表中预先存储的 所述相邻小区对应的最小接入门限值，若所述相邻小区的信号强度未达到所述小区列表中预先存储的所述相邻小区对应的最小接入门限值，所述控制单元禁止将所述服务小区重选至所述相邻小区。
  14. 根据权利要求13所述的用户终端，其特征在于，
    所述控制单元，还用于当所述第三判断单元判断出所述相邻小区的信号强度达到所述小区列表中预先存储的所述相邻小区对应的最小接入门限值时，将所述服务小区重选至所述相邻小区；
    所述用户终端还包括：
    第一执行单元，用于执行位置更新操作。
  15. 根据权利要求12至14任一项所述的用户终端，其特征在于，所述第一判断单元包括：
    第一获取子单元，用于获取所述相邻小区的位置识别码LAI；
    第一判断子单元，用于判断所述相邻小区的LAI是否与预先存储的小区列表中的一个小区的LAI一致；
    第一确定子单元，用于当所述第一判断子单元判断出所述相邻小区的LAI与所述小区列表中的一个小区的LAI一致时，确定所述相邻小区为预存小区。
  16. 根据权利要求12至15任一项所述的用户终端，其特征在于，
    所述控制单元，还用于当所述第一判断单元判断出所述相邻小区不为预存小区时，将所述服务小区重选至所述相邻小区；
    所述用户终端还包括：
    第四判断单元，用于判断所述相邻小区是否满足驻留条件；
    第二执行单元，用于当所述第四判断单元判断出所述相邻小区满足所述驻留条件时，执行位置更新操作。
  17. 根据权利要求16所述的用户终端，其特征在于，所述第四判断单元包括：
    第二获取子单元，用于获取所述相邻小区的最小接入门限值；
    第二判断子单元，用于判断所述相邻小区的信号强度是否达到所述最小接入门限值；
    第二确定子单元，用于当所述第二判断子单元判断出所述相邻小区的信号强度达到所述最小接入门限值时，确定所述相邻小区满足驻留条件。
  18. 根据权利要求16或17所述的用户终端，其特征在于，
    所述控制单元，还用于当所述第四判断单元判断出所述相邻小区不满足所述驻留条件时，从所述相邻小区重选回所述服务小区；
    所述用户终端还包括：
    存储单元，用于将所述相邻小区的标识信息保存至所述小区列表中，所述相邻小区的标识信息包括所述相邻小区的LAI和所述相邻小区的最小接入门限值；
    计时单元，用于对所述相邻小区进行计时。
  19. 根据权利要求18所述的用户终端，其特征在于，所述用户终端还包括：
    删除单元，用于当所述相邻小区对应的计时时长达到所述预设允许重选的间隔时长时，从所述小区列表中删除所述相邻小区的标识信息。
  20. 根据权利要求12至19任一项所述的用户终端，其特征在于，所述小区列表中包含的相同网络制式的小区的数量不超过预定值。
  21. 根据权利要求20所述的用户终端，其特征在于，所述预定值为32。
  22. 根据权利要求12至21任一项所述的用户终端，其特征在于，所述用户终端还包括：
    获取单元，用于在所述第一判断单元判断所述相邻小区是否为预先存储的小区列表中的预存小区之前，获取所述相邻小区的信号强度；
    第五判断单元，用于判断所述相邻小区的信号强度是否大于预设阈值，当 所述相邻小区的信号强度大于所述预设阈值时，判断出所述相邻小区满足重选条件。
  23. 一种用户终端，其特征在于，包括：处理器、存储器、网络接口以及通信总线；
    其中，所述存储器用于存储程序和数据；
    所述通信总线用于建立所述处理器、所述存储器和所述网络接口之间的连接通信；
    所述处理器用于调用所述存储器存储的程序，执行如下步骤：
    当驻留于服务小区的所述用户终端判断出所述服务小区的相邻小区满足重选条件时，判断所述相邻小区是否为所述存储器中存储的数据所包括的小区列表中的预存小区，所述服务小区的网络制式和所述相邻小区的网络制式不同；
    当所述相邻小区为所述存储器中存储的数据所包括的小区列表中的预存小区时，判断所述相邻小区对应的计时时长是否达到所述存储器中存储的数据所包括的预设允许重选的间隔时长；
    当所述相邻小区对应的计时时长未达到所述预设允许重选的间隔时长时，禁止将所述服务小区重选至所述相邻小区。
  24. 根据权利要求23所述的用户终端，其特征在于，所述存储器中存储的数据所包括的小区列表中还存储有预存小区对应的最小接入门限值，所述处理器禁止将所述服务小区重选至所述相邻小区之前，还用于调用所述存储器存储的程序，执行如下步骤：
    判断所述相邻小区的信号强度是否达到所述小区列表中预先存储的所述相邻小区对应的最小接入门限值；
    若所述相邻小区的信号强度未达到所述小区列表中预先存储的所述相邻小区对应的最小接入门限值，禁止将所述服务小区重选至所述相邻小区。
  25. 根据权利要求24所述的用户终端，其特征在于，所述处理器还用于调用所述存储器存储的程序，执行如下步骤：
    当判断出所述相邻小区的信号强度达到所述小区列表中预先存储的所述相邻小区对应的最小接入门限值时，控制所述网络接口将所述服务小区重选至所述相邻小区；
    执行位置更新操作。
  26. 根据权利要求23至25任一项所述的用户终端，其特征在于，所述处理器判断所述相邻小区是否为所述存储器中存储的数据所包括的小区列表中的预存小区的方式具体为：
    控制所述网络接口获取所述相邻小区的位置识别码LAI；
    判断所述相邻小区的LAI是否与所述存储器中存储的数据所包括的小区列表中的一个小区的LAI一致；
    当所述相邻小区的LAI与所述小区列表中的一个小区的LAI一致时，确定所述相邻小区为预存小区。
  27. 根据权利要求23至26任一项所述的用户终端，其特征在于，当所述处理器判断出所述相邻小区不为所述存储器中存储的数据所包括的小区列表中的预存小区时，所述处理器还用于调用所述存储器存储的程序，执行如下步骤：
    控制所述网络接口将所述服务小区重选至所述相邻小区；
    判断所述相邻小区是否满足驻留条件；
    当所述相邻小区满足所述驻留条件时，执行位置更新操作。
  28. 根据权利要求27所述的用户终端，其特征在于，所述处理器判断所述相邻小区是否满足驻留条件的方式具体为：
    控制所述网络接口获取所述相邻小区的最小接入门限值；
    判断所述相邻小区的信号强度是否达到所述最小接入门限值；
    当所述相邻小区的信号强度达到所述最小接入门限值时，确定所述相邻小区满足驻留条件。
  29. 根据权利要求27或28所述的用户终端，其特征在于，当所述处理器判 断出所述相邻小区不满足所述驻留条件时，所述处理器还用于调用所述存储器存储的程序，执行如下步骤：
    控制所述网络接口从所述相邻小区重选回所述服务小区；
    将所述相邻小区的标识信息保存至所述小区列表中，所述相邻小区的标识信息包括所述相邻小区的LAI和所述相邻小区的最小接入门限值；
    对所述相邻小区进行计时。
  30. 根据权利要求29所述的用户终端，其特征在于，所述处理器还用于调用所述存储器存储的程序，执行如下步骤：
    当所述相邻小区对应的计时时长达到所述预设允许重选的间隔时长时，从所述小区列表中删除所述相邻小区的的标识信息。
  31. 根据权利要求23至30任一项所述的用户终端，其特征在于，所述小区列表中包含的相同网络制式的小区的数量不超过预定值。
  32. 根据权利要求31所述的用户终端，其特征在于，所述预定值为32。
  33. 根据权利要求23至31任一项所述的用户终端，其特征在于，所述处理器判断所述相邻小区是否为所述存储器中存储的数据所包括的小区列表中的预存小区之前，还用于调用所述存储器存储的程序，执行如下步骤：
    控制所述网络接口获取所述相邻小区的信号强度；
    判断所述相邻小区的信号强度是否大于所述存储器中存储的数据所包括的预设阈值；
    当所述相邻小区的信号强度大于所述预设阈值时，判断出所述相邻小区满足重选条件。
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