WO2016172873A1 - 一种确定目标小区的方法及装置 - Google Patents

一种确定目标小区的方法及装置 Download PDF

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Publication number
WO2016172873A1
WO2016172873A1 PCT/CN2015/077790 CN2015077790W WO2016172873A1 WO 2016172873 A1 WO2016172873 A1 WO 2016172873A1 CN 2015077790 W CN2015077790 W CN 2015077790W WO 2016172873 A1 WO2016172873 A1 WO 2016172873A1
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WO
WIPO (PCT)
Prior art keywords
cell
historical
terminal
list
camped
Prior art date
Application number
PCT/CN2015/077790
Other languages
English (en)
French (fr)
Inventor
党淑君
段小嫣
金辉
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.)
Filing date
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 US15/570,633 priority Critical patent/US10397846B2/en
Priority to CN201580030689.5A priority patent/CN106664632A/zh
Priority to PCT/CN2015/077790 priority patent/WO2016172873A1/zh
Priority to EP15890253.6A priority patent/EP3282763A4/en
Publication of WO2016172873A1 publication Critical patent/WO2016172873A1/zh

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    • 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
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00837—Determination of triggering parameters for hand-off
    • H04W36/008375—Determination of triggering parameters for hand-off based on historical data
    • 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
    • H04W36/302—Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength
    • 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
    • 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
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and apparatus for determining a target cell.
  • Cell reselection and handover are the basic operations of the terminal in the mobile communication network, and are the basis for ensuring network connectivity and service continuity during the mobile process.
  • the terminal In the existing cell reselection process, the terminal only measures the neighboring cell broadcasted by the serving cell. When the signal of the serving cell becomes weak, only the neighboring cell of the serving cell may be used as the target cell for cell reselection, and the serving cell If the signal of the neighboring cell is weaker or has no signal, the terminal will be dropped. In the cell handover process, the terminal only measures the neighboring cell indicated by the serving cell. When the signal of the serving cell becomes weak, only the serving cell indicates The neighboring cell may be the target cell of the cell handover. When the signal of the neighboring cell indicated by the serving cell is weaker or has no signal, the terminal service is interrupted. In the actual scenario, the situation of isolated cells will be encountered.
  • the terminal is dropped or the service is interrupted.
  • the prior art solution will cause the terminal to drop the network or interrupt the service.
  • the embodiments of the present invention provide a method and a device for determining a target cell, which can be used as a target cell for cell reselection or handover, thereby reducing the probability of a network being disconnected or a service interruption.
  • an embodiment of the present invention provides a method for determining a target cell, including:
  • the terminal determines that the first cell list is a neighbor cell list of the serving cell and the historical camping cell list;
  • the terminal performs measurement on the cell in the first cell list, and obtains a measurement result
  • the terminal determines a target cell from the first cell list according to the measurement result.
  • the terminal performs measurement on a cell in the first cell list, and obtains a measurement result, including:
  • the terminal performs measurement on the cell in the neighboring cell list of the serving cell, obtains a measurement result of the neighboring cell of the serving cell, and performs measurement on the cell in the historical camped cell list to obtain a measurement of the historical camped cell. result;
  • the terminal performs measurement on the cell in the neighboring cell list of the serving cell. If the signal strength of the cell in the neighbor cell list of the serving cell is less than the second preset value or the measurement result does not meet the preset condition, then The cell in the historical camped cell list performs measurement to obtain a measurement result of the historical camped cell.
  • the historical resident cell list includes a preset number of cells
  • the cell in the historical camped cell list is the cell that last resides before the terminal is dropped or dropped.
  • the method further includes:
  • the terminal records the historical camping cell in the historical camped cell list according to the chronological order in which the terminal resides.
  • the method further includes:
  • the terminal is configured for each historical resident cell in the historical camped cell list.
  • the index is used to indicate the cell that the terminal first camped after leaving the historical camped cell.
  • the method further includes:
  • the information of the historical camping cell is deleted from the historical camping cell list.
  • an embodiment of the present invention provides an apparatus for determining a target cell, including:
  • An obtaining module configured to acquire a historical camping cell list of the terminal and a neighboring cell list of the serving cell of the terminal;
  • a determining module if the signal strength of the serving cell of the terminal is less than or equal to a first preset value, determining that the first cell list is a neighboring cell list of the serving cell and the historical camping cell list;
  • a measuring module configured to perform measurement on a cell in the first cell list, to obtain a measurement result
  • the determining module is configured to determine, according to the measurement result, a target cell from the first cell list.
  • the measuring module is specifically configured to:
  • the history is The cell in the camped cell list performs measurement to obtain the measurement result of the historical camped cell.
  • the historical resident cell list includes a preset number of cells
  • the cell in the historical camped cell list is the cell that last resides before the terminal is dropped or dropped.
  • the apparatus further includes:
  • a recording module configured to record, in the chronological order of the terminal, the historical resident cell in the historical camped cell list.
  • the apparatus further includes:
  • a setting module configured to set an index for each historical resident cell in the historical camped cell list, where the index is used to indicate a cell that the terminal first camped after leaving the historical camped cell.
  • the device further includes:
  • an update module configured to delete the information of the historical camping cell from the historical camped cell list when the time that the terminal leaves a certain historical camping cell is greater than a preset duration.
  • an embodiment of the present invention provides an apparatus for determining a target cell, including:
  • a processor configured to acquire a historical resident cell list of the terminal and a neighboring cell list of the serving cell of the terminal; and if the signal strength of the serving cell of the terminal is less than or equal to the first preset value, determine the first cell list a neighboring cell list of the serving cell and the historical camping cell list; performing measurement on the cell in the first cell list to obtain a measurement result; determining, according to the measurement result, from the first cell list Target cell.
  • the processor is specifically configured to:
  • the history is The cell in the camped cell list performs measurement to obtain the measurement result of the historical camped cell.
  • the historical resident cell list includes a preset number of cells
  • the cell in the historical camped cell list is the cell that last resides before the terminal is dropped or dropped.
  • the device also includes:
  • a memory configured to record, in the chronological order of the terminal, the historical resident cell in the historical camped cell list.
  • the processor is further And configured to set an index for each historical resident cell in the historical camped cell list, where the index is used to indicate a cell that the terminal first camped after leaving the historical camped cell.
  • the processor is further configured to: when the time that the terminal leaves a certain historical camping cell is greater than a preset duration, the information of the historical camping cell is deleted from the historical camping cell list.
  • An embodiment of the present invention provides a method and an apparatus for determining a target cell, including: acquiring, by a terminal, a historical camping cell list of a terminal and a neighboring cell list of a serving cell of the terminal; and if the signal strength of the serving cell of the terminal is less than or equal to the first pre-predetermined Setting a value, the terminal determines that the first cell list is a neighbor cell list and a historical camp cell list of the serving cell; the terminal performs measurement on the cell in the first cell list, and obtains a measurement result; the terminal selects from the first cell list according to the measurement result. Determine the target small Area.
  • the method and apparatus for determining a target cell may be used as a historical camped cell of a terminal when the neighboring cell of the serving cell of the terminal cannot satisfy the condition that the terminal performs reselection or handover.
  • the terminal reselects or switches the target cell, thereby reducing the probability of the terminal being dropped or the service is interrupted.
  • FIG. 1 is a schematic diagram of a scenario in which a terminal is located
  • FIG. 2 is a schematic flowchart 1 of a method for determining a target cell according to an embodiment of the present invention
  • FIG. 3 is a second schematic flowchart of a method for determining a target cell according to an embodiment of the present disclosure
  • FIG. 4 is a schematic structural diagram 1 of an apparatus for determining a target cell according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram 2 of an apparatus for determining a target cell according to an embodiment of the present disclosure
  • FIG. 6 is a schematic structural diagram 3 of an apparatus for determining a target cell according to an embodiment of the present invention.
  • the terminal After the terminal drops the network at a certain location, after a period of time, the terminal camps on the new cell, and there may be no interworking neighboring cells between the new cell and the original cell.
  • FIG. 1 for example, in a floor-to-ceiling window of a high-rise building, a cell with a relatively long distance (cell G in FIG. 1 ) is often covered, and a coverage signal of a local cell (cell C in FIG. 1 ) is weak. Since the cell G and the cell C are far apart, they are not mutually configured as neighboring cells.
  • the terminal moves from the cell C to the cell A in the direction indicated by the arrow in FIG.
  • the cell weight according to the prior art In the scheme of the selection and handover, since there is no suitable target cell in the neighboring cell of the cell C to provide services for the terminal, the service of the terminal is interrupted or dropped.
  • the method for determining a target cell provided by the embodiment of the present invention can solve the above problem. In the process of the terminal moving from the cell C to the cell A, the cell G can be accessed, thereby avoiding interruption of the terminal service.
  • FIG. 2 is a schematic flowchart of a method for determining a target cell, including:
  • the terminal acquires a historical camping cell list of the terminal and a neighboring cell list of the serving cell of the terminal.
  • the historical camped cell in the historical camped cell list refers to the cell that the terminal camps on or accesses before camping on or accessing the serving cell.
  • the serving cell refers to the cell currently serving the terminal, and the neighbor cell list of the serving cell.
  • the neighboring cell of the serving cell refers to a cell adjacent to the serving cell. Generally, the neighboring cell of the serving cell is pre-configured in the neighbor cell list of the serving cell.
  • the cell in the neighbor cell list of the serving cell and the cell in the historical camp cell list may have the same cell.
  • the terminal records the information of the historical camping cell in the historical camping cell list. Therefore, the information of the historical camping cell is obtained from the terminal, and the information of the neighboring cell of the serving cell is provided by the serving cell. Specifically, the cell is reselected.
  • the terminal receives the system information broadcasted by the base station to which the serving cell belongs, and obtains the neighboring cell information of the serving cell from the system information.
  • the terminal receives the measurement configuration delivered by the base station to which the serving cell belongs, from the measurement configuration. Obtain the neighbor information of the serving cell.
  • the terminal determines that the first cell list is a neighbor cell list of the serving cell and a historical camping cell list.
  • the terminal determines that the first cell list is a neighbor cell list of the serving cell; and if the signal strength of the serving cell is less than or equal to a preset value, the terminal determines the first cell.
  • the list is a list of neighbor cells and a list of historical camp cells of the serving cell.
  • the terminal performs measurement on the cell in the first cell list, and obtains a measurement result.
  • the terminal After determining the first cell list, the terminal starts to measure the cell in the first cell list.
  • the measurement indicator includes the signal power, the signal quality, the working frequency, and the cell in the first cell list in the first cell list. At least one of the supported network standards and the like.
  • the measurement result is used to indicate whether the cell in the first cell list can be used as a target cell for cell reselection or handover.
  • the terminal determines, according to the measurement result, the target cell from the first cell list.
  • the terminal selects the cell in which the signal power or the signal quality is the highest to perform cell reselection.
  • the terminal When the cell is handed over, the terminal reports the measurement result of the cell in the first cell list to the base station to which the serving cell belongs, and the base station selects an appropriate cell as the target cell of the terminal handover according to the measurement result of each cell, and the terminal according to the service cell belongs to The handover command sent by the base station is switched to the target cell.
  • the process of determining the target cell of the cell handover by the base station according to the measurement result reported by the terminal may adopt the existing technology, and the present invention does not limit this.
  • a method for determining a target cell includes: acquiring, by a terminal, a historical camped cell list of the terminal and a neighboring cell list of the serving cell of the terminal; and if the signal strength of the serving cell of the terminal is less than or equal to the first preset And determining, by the terminal, the first cell list is a neighbor cell list and a historical camp cell list of the serving cell; the terminal performs measurement on the cell in the first cell list, and obtains a measurement result; the terminal obtains a measurement result from the first cell list. Determine the target cell.
  • the method and apparatus for determining a target cell may be used as a historical camped cell of a terminal when the neighboring cell of the serving cell of the terminal cannot satisfy the condition that the terminal performs reselection or handover.
  • the terminal reselects or switches the target cell, thereby reducing the probability of the terminal being dropped or the service is interrupted.
  • An embodiment of the present invention provides a method for determining a target cell, where the method for determining a target cell may be, but is not limited to, applied in a process of cell reselection or handover.
  • the target cell is determined by using the embodiment of the present invention.
  • the terminal acquires a historical camping cell list of the terminal and a neighboring cell list of the serving cell of the terminal.
  • the neighboring cell and the historical camping cell of the serving cell may be comprehensively considered, so that the cell with the best signal strength is selected as the target of cell reselection.
  • the signal strength includes signal power or signal quality, or the signal strength includes signal power and signal quality.
  • the terminal directly reads the information of the historical camped cell from the historical camped cell list of the terminal, where the neighboring cell information of the serving cell is carried by the system information broadcast by the base station to which the serving cell belongs, and the terminal resides in the serving cell and receives the information.
  • the system information broadcasted by the base station to which the serving cell belongs, and the neighbor information of the serving cell is obtained therefrom.
  • the terminal determines that the first cell list is a neighbor cell list and a historical camp cell list of the serving cell.
  • the terminal determines the first cell list according to the signal strength of the serving cell.
  • the first cell list is a neighbor cell list of the serving cell, or the first cell list is a neighbor cell list of the serving cell and a historical camp cell list.
  • the cell in the first cell list is only a neighboring cell of the serving cell; if the signal strength of the serving cell is less than or equal to a preset value, the first cell list is The cell is composed of a neighboring cell of the serving cell and a historical camping cell.
  • the terminal only measures the neighboring cell of the serving cell; if the first cell list includes the neighboring cell and the historical camping cell of the serving cell The sum of the neighboring cell list and the historical camping cell list of the serving cell is combined, and the combined cell is measured.
  • the combining, by the terminal, the neighboring cell and the historical camping cell of the serving cell includes: if the neighboring cell list of the serving cell of the terminal and the same cell exist in the historical camping cell list, the first cell list does not include the duplicated Cell information. For example, if the neighbor cell list and the historical camp cell list of the serving cell of the terminal both include the A cell information, the merged list (ie, the first cell list) includes only one A cell information.
  • the terminal performs measurement on the cell in the first cell list, and obtains a measurement result.
  • the first cell list includes two situations, the first case: the first cell The neighboring area of the serving cell is only included in the list; the second case: the first cell list includes the neighboring cell of the serving cell and the historical camped cell of the terminal.
  • the terminal performs measurement on all cells in the first cell list, and specifically, may include measurement of signal power or signal quality of each cell in the first cell list, or simultaneously on signal power and signal quality.
  • the measurement is performed, and the appropriate cell is selected as the target cell for cell reselection according to the measurement result.
  • the method in the prior art may be used to select a suitable cell as the target cell for cell reselection.
  • the terminal performs measurement on all cells in the first cell list, and the terminal may perform measurement on all cells in the first cell list, including the neighboring cell and the historical camping cell of the serving cell, and may include Measurement of signal power or signal quality of each cell in the first cell list, or simultaneous measurement of signal power and signal quality, and selecting a suitable cell as a target cell for cell reselection according to the measurement result; or, the terminal firstly The neighboring cell of the serving cell in the cell list is measured.
  • the signal strength of the neighboring cell of the serving cell is less than the second preset value or the measurement result of the neighboring cell of the serving cell does not satisfy the condition of cell reselection, the first cell is further used.
  • the historical camping cell in the list performs measurement to select a suitable cell as the target cell for cell reselection, wherein the signal strength of the neighboring cell of the serving cell is smaller than the second preset value, indicating that the signal of the neighboring cell of the serving cell is weak.
  • the terminal cannot measure it.
  • the terminal determines, according to the measurement result, the target cell from the first cell list.
  • the terminal selects a suitable cell as the target cell for reselection according to the cell reselection determination criterion, and performs a process of cell reselection.
  • the terminal selects the historical camp cell as the target cell for cell reselection.
  • the signal power of the historical camping cell is higher than the threshold a1 or the signal quality is higher than the threshold a2, or the signal power is higher than the threshold a1 and the signal quality is higher than the threshold a2, and the signal power of the serving cell is lower than the threshold b1, or the signal quality Below the threshold b2, or the signal power is lower than the threshold b1 and the signal quality is lower than the threshold b2; or
  • the signal power of the historical camping cell is higher than the threshold c1 or the signal quality is higher than the threshold c2 or the signal power is higher than the threshold c1 and the signal quality is higher than the threshold c2.
  • the values of a1, a2, b1, b2, c1, and c2 may be pre-configured according to actual experience, or may be configured according to parameters in system information transmitted by the serving cell. Further, the priority of the historical camped cell and the serving cell may be set. If the priority of the historical camped cell is higher, the above condition 2) is adopted, otherwise the above condition 1) is adopted.
  • the terminal may select a historical camping cell with the highest signal power or signal quality as the target cell for cell reselection.
  • the cell in the historical camped cell list is the cell that is last camped before the terminal is dropped or dropped.
  • the terminal moves "resident-drop-off” (ie, changes from normal camping to dropped-net) or "call-drop” during the mobile (ie, from normal call to call interruption)
  • the cell ID that the terminal last resided before dropping or dropping the call is added to the historical camped cell list.
  • the historical camped cell list includes a preset number of cells, and the historical camped cell list is stored in the memory.
  • the cells in the historical camped cell list may be stored in the chronological order in which the terminal resides.
  • the terminal may set an index for each historical camping cell in the historical camped cell list, and the index is used to indicate the cell that the terminal camps for the first time after leaving the historical camping cell.
  • the terminal sets an index for each historical camping cell in the historical camping cell list, for example, the terminal camps in the A cell, and during the mobile process, the network occurs, and then the G cell is camped on or accessed.
  • the index set for the A cell (a historical camping cell) is the ID of the G cell; the terminal camps in the B cell, moves to the D cell during the call, and the call is dropped, that is, the call is interrupted, and the terminal is B (another history)
  • the index of the camped cell) cell setting is the ID of the D cell.
  • the historical camped cell Since the historical camped cell is time-sensitive, it is necessary to update the stored historical camped cell. Specifically, when the time that the terminal leaves a certain historical camping cell is greater than the preset duration, the information of the historical camping cell is deleted from the historical camping cell list.
  • the historical camping cell list is set to include a preset number (for example, 5) of historical camping cell information
  • a preset number for example, 5
  • the reserved cell information needs to be written into the memory, and the information of the latest historical resident cell is used to overwrite the first stored historical resident cell information. Thereby updating the letter of the historical resident cell interest.
  • the time when the terminal leaves a certain historical camping cell is also recorded.
  • the time when the terminal leaves the historical camping cell is greater than the preset duration, the historical camping cell is used.
  • the information is deleted. Thereby updating the information of the historical camped cell.
  • the terminal performs the following process in a period of time: camping in the A cell - dropping the network - camping in the B cell - dropping the network - camping in the C cell - dropping the network - camping in the D cell - dropping the network - resident
  • the memory used to store the historical residency information in the terminal can store information of up to three historical camped cells, in the foregoing process, when the historical camped cell list stores the cell A and the cell B, After the information of the cell C, there is no remaining storage space.
  • the information of the latest historical camping cell D is to be written, the information of the cell A is covered by the information of the cell D, and the historical resident cell list will be The information of the cell D, the information of the cell B, and the information of the cell C are stored.
  • the method for determining a target cell provided by the embodiment of the present invention may also be applied to a process of cell handover, and details are not described herein again.
  • a method for determining a target cell includes: acquiring, by a terminal, a historical camped cell list of the terminal and a neighboring cell list of the serving cell of the terminal; and if the signal strength of the serving cell of the terminal is less than or equal to the first preset And determining, by the terminal, the first cell list is a neighbor cell list and a historical camp cell list of the serving cell; the terminal performs measurement on the cell in the first cell list, and obtains a measurement result; the terminal obtains a measurement result from the first cell list. Determine the target cell.
  • the method and apparatus for determining a target cell may be used as a historical camped cell of a terminal when the neighboring cell of the serving cell of the terminal cannot satisfy the condition that the terminal performs reselection or handover.
  • the terminal reselects or switches the target cell, thereby reducing the probability of the terminal being dropped or the service is interrupted.
  • FIG. 4 is a schematic structural diagram of the device, including:
  • the obtaining module 10 is configured to obtain a historical camping cell list of the terminal and a neighboring cell list of the serving cell of the terminal.
  • the determining module 20 is configured to: if the signal strength of the serving cell of the terminal is less than or equal to the first pre- If the value is set, the first cell list is determined to be a neighbor cell list and a historical camp cell list of the serving cell.
  • the measuring module 30 is configured to perform measurement on the cell in the first cell list to obtain a measurement result.
  • the determining module 20 is further configured to determine the target cell from the first cell list according to the measurement result.
  • the measuring module 30 is specifically configured to:
  • Measure the cell in the neighboring cell list of the serving cell obtain the measurement result of the neighboring cell of the serving cell, and measure the cell in the historical camped cell list to obtain the measurement result of the historical camped cell; or, for the serving cell
  • the cell in the neighbor cell list is measured. If the signal strength of the cell in the neighbor cell list of the serving cell is less than the second preset value or the measurement result does not satisfy the preset condition, the cell in the historical camp cell list is measured. , get the measurement results of the historical resident cell.
  • the historical camped cell list includes a preset number of cells, and the cell in the historical camped cell list is a cell that is last dropped before the terminal is dropped or dropped.
  • the apparatus for determining a target cell further includes:
  • the recording module 40 is configured to record the historical camping cells in the historical camped cell list according to the chronological order in which the terminal resides.
  • the setting module 50 is configured to set an index for each historical camping cell in the historical camping cell list, where the index is used to indicate the cell that the terminal camps for the first time after leaving the historical camping cell.
  • the updating module 60 is configured to delete the information of the historical camping cell from the historical camping cell list when the time when the terminal leaves a certain historical camping cell is greater than the preset duration.
  • An embodiment of the present invention provides an apparatus for determining a target cell, including: an obtaining module, configured to acquire a historical camping cell list of the terminal and a neighboring cell list of the serving cell of the terminal; and a determining module, configured to: if the signal of the serving cell of the terminal If the strength is less than or equal to the first preset value, determining that the first cell list is a neighbor cell list and a historical camping cell list of the serving cell, and the measuring module is configured to perform measurement on the cell in the first cell list to obtain a measurement result; And a determining module, configured to determine the target cell from the first cell list according to the measurement result.
  • the method and apparatus for determining a target cell provided by the embodiment of the present invention, when the neighboring cell of the serving cell of the terminal cannot meet the condition for the terminal to perform reselection or handover
  • the historical camping cell of the terminal can be used as the target cell for terminal reselection or handover, thereby reducing the probability of the terminal being disconnected or the service is interrupted.
  • An embodiment of the present invention provides a device for determining a target cell, as shown in FIG. 6, including:
  • the processor 70 is configured to obtain a historical camping cell list of the terminal and a neighboring cell list of the serving cell of the terminal; if the signal strength of the serving cell of the terminal is less than or equal to the first preset value, determine the first cell
  • the list is a neighboring cell list of the serving cell and the historical camping cell list; performing measurement on the cell in the first cell list to obtain a measurement result; according to the measurement result, from the first cell list Determine the target cell.
  • the processor 70 is specifically configured to:
  • Performing measurement on the cell in the neighboring cell list of the serving cell obtaining a measurement result of the neighboring cell of the serving cell, and performing measurement on the cell in the historical camped cell list to obtain a measurement result of the historical camped cell; or And performing measurement on the cell in the neighboring cell list of the serving cell, if the signal strength of the cell in the neighbor cell list of the serving cell is less than a second preset value or the measurement result does not satisfy the preset condition, The cell in the historical camped cell list performs measurement to obtain the measurement result of the historical camped cell.
  • the historical camped cell list includes a preset number of cells, and the cells in the historical camped cell list are cells that are last dropped before the terminal is dropped or dropped.
  • the apparatus further includes a memory 80, configured to record the historical camping cells in the historical camped cell list in chronological order of the terminal camping.
  • the processor 70 is further configured to set an index for each historical camping cell in the historical camping cell list, where the index is used to indicate the cell that the terminal camps for the first time after leaving the historical camping cell.
  • the processor 70 is further configured to: when the time that the terminal leaves a certain historical camping cell is greater than a preset duration, delete the information of the historical camping cell from the historical camping cell list.
  • An embodiment of the present invention provides an apparatus for determining a target cell, including: a processor, configured to acquire a historical camping cell list of the terminal and a neighboring cell list of the serving cell of the terminal; and if the signal strength of the serving cell of the terminal is less than or equal to the first a preset value, determining that the first cell list is a neighbor cell list and a historical camp cell list of the serving cell; performing measurement on the cell in the first cell list, and obtaining a measurement result; according to the measurement result, from the first cell list Determine the target cell.
  • the method and apparatus for determining a target cell may be used as a historical camped cell of a terminal when the neighboring cell of the serving cell of the terminal cannot satisfy the condition that the terminal performs reselection or handover.
  • the terminal reselects or switches the target cell, thereby reducing the probability of the terminal being dropped or the service is interrupted.

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Abstract

本发明实施例提供一种确定目标小区的方法及装置，涉及通信领域，能够将终端的历史驻留小区作为小区重选或切换的目标小区，从而减少终端发生掉网或业务中断的几率。该确定目标小区的方法包括：终端获取终端的历史驻留小区列表和终端的服务小区的邻区列表；若终端的服务小区的信号强度小于或等于第一预设值，则终端确定第一小区列表为服务小区的邻区列表和历史驻留小区列表；终端对第一小区列表中的小区进行测量，得到测量结果；终端根据测量结果，从第一小区列表中确定目标小区。

Description

一种确定目标小区的方法及装置 技术领域
本发明涉及通信领域，尤其涉及一种确定目标小区的方法及装置。
背景技术
小区重选和切换是终端在移动通信网络中的基本操作，是终端在移动过程中，保证网络连接和业务连续性的基础。
在现有的小区重选过程中，终端仅对服务小区广播的邻区进行测量，当服务小区的信号变弱时，只有服务小区的邻区才可能作为小区重选的目标小区，当服务小区的邻区的信号更弱或者没有信号时，将导致终端掉网；在小区切换过程中，终端仅对服务小区指示的邻区进行测量，当服务小区的信号变弱时，只有服务小区指示的邻区才可能作为小区切换的目标小区，当服务小区指示的邻区的信号更弱或者没有信号时，将导致终端业务中断。在实际场景中，会遇到孤立小区的情形，比如在高层建筑的落地窗边，往往有距离较远的其他小区的信号覆盖，且信号覆盖较强，而该孤立小区的覆盖信号则较弱；由于其他小区与该孤立小区距离较远，该孤立小区和其他小区之间没有配置为邻区，按照现有技术中的小区重选和切换的过程，将造成终端掉网或业务中断。
因此，当服务小区没有邻区或者邻区不能满足小区重选或切换的条件时，现有技术的方案将会导致终端掉网或业务中断。
发明内容
本发明的实施例提供一种确定目标小区的方法及装置，能够将终端的历史驻留小区作为小区重选或切换的目标小区，从而减少终端发生掉网或业务中断的几率。
为达到上述目的，本发明的实施例采用如下技术方案：
第一方面，本发明实施例提供一种确定目标小区的方法，包括：
终端获取所述终端的历史驻留小区列表和所述终端的服务小区的邻区列表；
若所述终端的服务小区的信号强度小于或等于第一预设值，则所述终端确定第一小区列表为所述服务小区的邻区列表和所述历史驻留小区列表；
所述终端对所述第一小区列表中的小区进行测量，得到测量结果；
所述终端根据所述测量结果，从所述第一小区列表中确定目标小区。
结合第一方面，在第一方面的第一种可能的实现方式中，所述终端对所述第一小区列表中的小区进行测量，得到测量结果，包括：
所述终端对所述服务小区的邻区列表中的小区进行测量，得到服务小区的邻区的测量结果，并对所述历史驻留小区列表中的小区进行测量，得到历史驻留小区的测量结果；
或者，
所述终端对所述服务小区的邻区列表中的小区进行测量，若所述服务小区的邻区列表中的小区的信号强度小于第二预设值或者测量结果不满足预设条件，则对所述历史驻留小区列表中的小区进行测量，得到所述历史驻留小区的测量结果。
结合第一方面或者第一方面的第一种可能的实现方式，在第一方面的第二种可能的实现方式中，所述历史驻留小区列表中包括预设数量的小区，
所述历史驻留小区列表中的小区为所述终端掉网或掉话前最后驻留的小区。
结合第一方面，或者第一方面的第一种可能的实现方式以及第一方面的第二种可能的实现方式，在第一方面的第三种可能的实现方式中，所述方法还包括：
所述终端将所述历史驻留小区按照所述终端驻留的时间先后顺序记录在所述历史驻留小区列表中。
结合第一方面，或者第一方面的第一种可能的实现方式至第一方面的第三种可能的实现方式，在第一方面的第四种可能的实现方式中，所述方法还包括：
所述终端为所述历史驻留小区列表中的每个历史驻留小区设置索 引，所述索引用于指示所述终端离开该历史驻留小区后首次驻留的小区。
结合第一方面，或者第一方面的第一种可能的实现方式至第一方面的第四种可能的实现方式，在第一方面的第五种可能的实现方式中，所述方法还包括：
当所述终端离开某一个历史驻留小区的时间大于预设时长时，将该历史驻留小区的信息从所述历史驻留小区列表中删除。
第二方面，本发明实施例提供一种确定目标小区的装置，包括：
获取模块，用于获取终端的历史驻留小区列表和所述终端的服务小区的邻区列表；
确定模块，用于若所述终端的服务小区的信号强度小于或等于第一预设值，则确定第一小区列表为所述服务小区的邻区列表和所述历史驻留小区列表；
测量模块，用于对所述第一小区列表中的小区进行测量，得到测量结果；
所述确定模块，用于根据所述测量结果，从所述第一小区列表中确定目标小区。
结合第二方面，在第二方面的第一种可能的实现方式中，所述测量模块，具体用于：
对所述服务小区的邻区列表中的小区进行测量，得到服务小区的邻区的测量结果，并对所述历史驻留小区列表中的小区进行测量，得到历史驻留小区的测量结果；
或者，
对所述服务小区的邻区列表中的小区进行测量，若所述服务小区的邻区列表中的小区的信号强度小于第二预设值或者测量结果不满足预设条件，则对所述历史驻留小区列表中的小区进行测量，得到所述历史驻留小区的测量结果。
结合第二方面，或者第二方面的第一种可能的实现方式，在第二方面的第二种可能的实现方式中，
所述历史驻留小区列表中包括预设数量的小区，
所述历史驻留小区列表中的小区为所述终端掉网或掉话前最后驻留的小区。
结合第二方面，或者第二方面的第一种可能的实现方式至第二方面的第二种可能的实现方式，在第二方面的第三种可能的实现方式中，所述装置还包括：
记录模块，用于将所述历史驻留小区按照所述终端驻留的时间先后顺序记录在所述历史驻留小区列表中。
结合第二方面，或者第二方面的第一种可能的实现方式至第二方面的第三种可能的实现方式，在第二方面的第四种可能的实现方式中，所述装置还包括：
设置模块，用于为所述历史驻留小区列表中的每个历史驻留小区设置索引，所述索引用于指示所述终端离开该历史驻留小区后首次驻留的小区。
结合第二方面，或者第二方面的第一种可能的实现方式至第二方面的第四种可能的实现方式，在第二方面的第五种可能的实现方式中，所述装置还包括：
更新模块，用于当所述终端离开某一个历史驻留小区的时间大于预设时长时，将该历史驻留小区的信息从所述历史驻留小区列表中删除。
第三方面，本发明实施例提供一种确定目标小区的装置，包括：
处理器，用于获取终端的历史驻留小区列表和所述终端的服务小区的邻区列表；若所述终端的服务小区的信号强度小于或等于第一预设值，则确定第一小区列表为所述服务小区的邻区列表和所述历史驻留小区列表；对所述第一小区列表中的小区进行测量，得到测量结果；根据所述测量结果，从所述第一小区列表中确定目标小区。
结合第三方面，在第三方面的第一种可能的实现方式中，所述处理器，具体用于：
对所述服务小区的邻区列表中的小区进行测量，得到服务小区的邻区的测量结果，并对所述历史驻留小区列表中的小区进行测量，得到历史驻留小区的测量结果；
或者，
对所述服务小区的邻区列表中的小区进行测量，若所述服务小区的邻区列表中的小区的信号强度小于第二预设值或者测量结果不满足预设条件，则对所述历史驻留小区列表中的小区进行测量，得到所述历史驻留小区的测量结果。
结合第三方面或者第三方面的第一种可能的实现方式，在第三方面的第二种可能的实现方式中，所述历史驻留小区列表中包括预设数量的小区，
所述历史驻留小区列表中的小区为所述终端掉网或掉话前最后驻留的小区。
结合第三方面，或者第三方面的第一种可能的实现方式以及第三方面的第二种可能的实现方式，在第三方面的第三种可能的实现方式中，
所述装置还包括：
存储器，用于将所述历史驻留小区按照所述终端驻留的时间先后顺序记录在所述历史驻留小区列表中。
结合第三方面，或者第三方面的第一种可能的实现方式至第三方面的第三种可能的实现方式，在第三方面的第四种可能的实现方式中，所述处理器，还用于为所述历史驻留小区列表中的每个历史驻留小区设置索引，所述索引用于指示所述终端离开该历史驻留小区后首次驻留的小区。
结合第三方面，或者第三方面的第一种可能的实现方式至第三方面的第四种可能的实现方式，在第三方面的第五种可能的实现方式中，
所述处理器，还用于当所述终端离开某一个历史驻留小区的时间大于预设时长时，将该历史驻留小区的信息从所述历史驻留小区列表中删除。
本发明实施例提供一种确定目标小区的方法及装置，包括：终端获取终端的历史驻留小区列表和终端的服务小区的邻区列表；若终端的服务小区的信号强度小于或等于第一预设值，则终端确定第一小区列表为服务小区的邻区列表和历史驻留小区列表；终端对第一小区列表中的小区进行测量，得到测量结果；终端根据测量结果，从第一小区列表中确定目标小 区。
基于上述实施例的描述，本发明实施例提供的确定目标小区的方法及装置，当终端的服务小区的邻区不能满足终端进行重选或切换的条件时，可以将终端的历史驻留小区作为终端重选或切换的目标小区，从而减少终端发生掉网或业务中断的几率。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为终端所处的一种场景示意图；
图2为本发明实施例提供的确定目标小区的方法的流程示意图一；
图3为本发明实施例提供的确定目标小区的方法的流程示意图二；
图4为本发明实施例提供的确定目标小区的装置的结构示意图一；
图5为本发明实施例提供的确定目标小区的装置的结构示意图二；
图6为本发明实施例提供的确定目标小区的装置的结构示意图三。
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作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。
实际中，当终端在某地点掉网后，经过一段时间后，终端驻留到新的小区，新的小区和原小区之间可能并没有互配邻区。如图1所示，例如在高层建筑的落地窗边，往往有距离较远的小区(如图1中小区G)信号覆盖，而本地小区(如图1中小区C)的覆盖信号则较弱，由于小区G和小区C距离较远，因此它们之间没有相互配置为邻区，当终端从小区C沿图1中箭头所示方向移动到小区A的过程中，按照现有技术中小区重 选和切换的方案，由于小区C的邻区中没有合适的目标小区为终端提供服务，因此将会造成终端的业务中断或掉网。以下本发明实施例提供的确定目标小区的方法，可以解决上述问题，在终端从小区C移动到小区A的过程中，可以接入小区G，从而避免了终端业务的中断。
实施例一
本发明实施例提供一种确定目标小区的方法，如图2所示，为该确定目标小区的方法的流程示意图，包括：
S101、终端获取终端的历史驻留小区列表和终端的服务小区的邻区列表。
历史驻留小区列表中的历史驻留小区是指终端在驻留或者接入服务小区之前驻留或者接入过的小区，服务小区是指当前为终端提供服务的小区，服务小区的邻区列表中的服务小区的邻区是指与服务小区相邻的小区，通常，服务小区的邻区预先配置在服务小区的邻区列表中。
可以理解的是，服务小区的邻区列表中的小区和历史驻留小区列表中的小区有可能存在相同的小区。
终端将历史驻留小区的信息记录在历史驻留小区列表中，因此，历史驻留小区的信息从终端上获取，服务小区的邻区的信息由服务小区提供，具体的，在小区重选的过程中，终端接收服务小区所属的基站广播的系统信息，从系统信息中获取服务小区的邻区信息；在小区切换的过程中，终端接收服务小区所属的基站下发的测量配置，从测量配置中获取服务小区的邻区信息。
S102、若终端的服务小区的信号强度小于或等于第一预设值，则终端确定第一小区列表为服务小区的邻区列表和历史驻留小区列表。
可以理解的是，若服务小区的信号强度大于预设值，则终端确定第一小区列表为服务小区的邻区列表；若服务小区的信号强度小于或等于预设值，则终端确定第一小区列表为服务小区的邻区列表和历史驻留小区列表。当服务小区的信号强度比较大时，重选/切换的可能性较小，因此可以只测服务小区的邻区，从而使得终端达到省电的目的，当服务小区的信号强度比较大时，第一小区列表即为服务小区的邻区列表，终端接下来的 执行过程与现有技术相同。
S103、终端对第一小区列表中的小区进行测量，得到测量结果。
终端确定第一小区列表之后，开始对第一小区列表中的小区进行测量，具体的，测量指标包括第一小区列表中的小区的信号功率，信号质量，工作频率，第一小区列表中的小区支持的网络制式等中的至少一个。测量结果用于指示第一小区列表中的小区是否可以作为终端进行小区重选或者切换的目标小区。
S104、终端根据测量结果，从第一小区列表中确定目标小区。
在小区重选时，如果第一小区列表中满足作为小区重选的目标小区的条件的小区有多个，则终端选择其中信号功率或者信号质量最高的小区进行小区重选。
在小区切换时，终端将第一小区列表中的小区的测量结果上报给服务小区所属的基站，基站根据各个小区的测量结果，选择合适的小区作为终端切换的目标小区，终端根据服务小区所属的基站下发的切换命令切换到目标小区。具体的，基站根据终端上报的测量结果确定小区切换的目标小区的过程可以采用现有的技术，本发明对此不做限制。
本发明实施例提供的一种确定目标小区的方法，包括：终端获取终端的历史驻留小区列表和终端的服务小区的邻区列表；若终端的服务小区的信号强度小于或等于第一预设值，则终端确定第一小区列表为服务小区的邻区列表和历史驻留小区列表；终端对第一小区列表中的小区进行测量，得到测量结果；终端根据测量结果，从第一小区列表中确定目标小区。
基于上述实施例的描述，本发明实施例提供的确定目标小区的方法及装置，当终端的服务小区的邻区不能满足终端进行重选或切换的条件时，可以将终端的历史驻留小区作为终端重选或切换的目标小区，从而减少终端发生掉网或业务中断的几率。
实施例二
本发明实施例提供一种确定目标小区的方法，该确定目标小区的方法可以但不限于应用在小区重选或者切换的过程中。
示例性的，如图3所示，为将本发明实施例所提供的确定目标小区 的方法应用于小区重选的过程：
S201、终端获取终端的历史驻留小区列表和终端的服务小区的邻区列表。
在本发明实施例中，终端接入服务小区之后，如果要进行小区重选，就可以综合考虑服务小区的邻区和历史驻留小区，从而选择信号强度最好的小区作为小区重选的目标小区。具体地，信号强度包括信号功率或信号质量，或者信号强度包括信号功率和信号质量。
其中，终端直接从终端的历史驻留小区列表中读取历史驻留小区的信息，服务小区的邻区信息是由服务小区所属的基站广播的系统信息携带的，终端驻留在服务小区，接收服务小区所属的基站广播的系统信息，并从中获取服务小区的邻区信息。
S202、若终端的服务小区的信号强度小于或等于第一预设值，则终端确定第一小区列表为服务小区的邻区列表和历史驻留小区列表。
终端根据服务小区的信号强度，确定第一小区列表。
第一小区列表为服务小区的邻区列表，或者第一小区列表为服务小区的邻区列表和历史驻留小区列表。
具体的，若服务小区的信号强度大于预设值，则第一小区列表中的小区仅为服务小区的邻区；若服务小区的信号强度小于或等于预设值，则第一小区列表中的小区由服务小区的邻区和历史驻留小区共同组成。其中，当第一小区列表中仅包括服务小区的邻区列表中的邻区时，终端仅对服务小区的邻区进行测量；若第一小区列表中包括服务小区的邻区和历史驻留小区的总和，则终端对服务小区的邻区列表和历史驻留小区列表进行合并，并对合并后的所有小区进行测量。具体地，终端对服务小区的邻区和历史驻留小区进行合并包括：若终端的服务小区的邻区列表和历史驻留小区列表中存在相同的小区，则第一小区列表中不包括重复的小区信息。例如，若终端的服务小区的邻区列表和历史驻留小区列表均包括A小区信息，则合并后的列表(即第一小区列表)中仅包含一个A小区信息。
S203、终端对第一小区列表中的小区进行测量，得到测量结果。
由S202可知，第一小区列表包括两种情形，第一种情形：第一小区 列表中仅包括服务小区的邻区；第二种情形：第一小区列表中包括服务小区的邻区和终端的历史驻留小区。
在第一种情形下，终端对第一小区列表中的所有小区进行测量，具体的，可以包括对第一小区列表中各个小区的信号功率或信号质量的测量，或者对信号功率和信号质量同时进行测量，并根据测量结果选择合适的小区作为小区重选的目标小区，具体的，可以采用现有技术中的方法选择合适的小区作为小区重选的目标小区。
在第二种情形下，终端对第一小区列表中的所有小区进行测量，终端可以对第一小区列表中的所有小区(包括服务小区的邻区、历史驻留小区)进行测量，可以包括对第一小区列表中各个小区的信号功率或信号质量的测量，或者对信号功率和信号质量同时进行测量，并根据测量结果选择合适的小区作为小区重选的目标小区；或者，终端首先对第一小区列表中服务小区的邻区进行测量，当服务小区的邻区的信号强度小于第二预设值或服务小区的邻区的测量结果都不满足小区重选的条件时，再对第一小区列表中的历史驻留小区进行测量，从而选择合适的小区作为小区重选的目标小区，其中，服务小区的邻区的信号强度小于第二预设值是指服务小区的邻区的信号比较弱，终端无法对其进行测量。
S204、终端根据测量结果，从第一小区列表中确定目标小区。
具体的，终端根据小区重选判定准则，选择合适的小区作为重选的目标小区，执行小区重选的过程。
具体地，当第一小区列表中包括服务小区的邻区列表和历史驻留小区列表，并且当测量结果满足下述条件时，终端将会选择历史驻留小区作为小区重选的目标小区。
1)历史驻留小区的信号功率高于阈值a1或信号质量高于阈值a2，或者信号功率高于阈值a1和信号质量高于阈值a2，且服务小区的信号功率低于阈值b1，或信号质量低于阈值b2，或信号功率低于阈值b1和信号质量低于阈值b2；或者，
2)历史驻留小区的信号功率高于阈值c1或信号质量高于阈值c2或信号功率高于阈值c1和信号质量高于阈值c2。
这里a1、a2、b1、b2、c1、c2的值可以根据实际经验预先配置，也可以依据服务小区发送的系统信息中的参数进行配置。进一步地，可以设置历史驻留小区与服务小区的优先级，若历史驻留小区的优先级较高，则采用上述条件2)，反之则采用上述条件1)。
当满足上述条件的历史驻留小区有多个时，终端可以选择信号功率或信号质量最高的历史驻留小区，作为小区重选的目标小区。
需要说明的是，历史驻留小区列表中的小区为终端掉网或掉话前最后驻留的小区。
示例性的，当终端在移动过程中发生“驻留-掉网”(即：由正常驻留变为掉网)的变化或者“通话-掉话”(即：由正常通话变为通话中断)的变化时，就将终端在掉网或者掉话之前最后驻留过的小区ID加入历史驻留小区列表。
需要说明的是，历史驻留小区列表中包括预设数量的小区，历史驻留小区列表存储在存储器中，可选的，历史驻留小区列表中的小区可以按照终端驻留的时间先后顺序存储；同时，终端可以为历史驻留小区列表中的每个历史驻留小区设置索引，该索引用于指示终端离开该历史驻留小区后首次驻留的小区。
具体地，终端为历史驻留小区列表中的每个历史驻留小区设置索引，例如，终端在A小区驻留，在移动过程中，发生掉网，然后驻留或接入G小区，则终端为A小区(一个历史驻留小区)设置的索引为G小区的ID；终端在B小区驻留，在通话过程中移动到D小区，发生掉话，即通话中断，则终端为B(另一个历史驻留小区)小区设置的索引为D小区的ID。
由于历史驻留小区具有时效性，因此需要对存储的历史驻留小区进行更新。具体的，当终端离开某一个历史驻留小区的时间大于预设时长时，将该历史驻留小区的信息从历史驻留小区列表中删除。
示例性的，若历史驻留小区列表设置为包含预设数量(例如5个)的历史驻留小区信息，当该存储器已经存储了5个历史驻留小区信息时，若又有新的历史驻留小区信息需要写入该存储器，则使用最新的历史驻留小区的信息覆盖最先存储的历史驻留小区信息。从而更新历史驻留小区的信 息。
或者，在存储历史驻留小区的信息时，将终端离开某个历史驻留小区的时间也进行记录，当终端离开该历史驻留小区的时间大于预设时长时，则将该历史驻留小区的信息删除。从而更新历史驻留小区的信息。
示例性的，终端在一段时间内发生如下过程：驻留在A小区-掉网-驻留在B小区-掉网-驻留在C小区-掉网-驻留在D小区-掉网-驻留在E小区，如果终端中用来存储历史驻留信息的存储器最多可以存储3个历史驻留小区的信息，则在上述过程中，当历史驻留小区列表中存储了小区A，小区B，小区C的信息之后，就没有剩余的存储空间了，当最新的历史驻留小区小区D的信息要写入时，就用小区D的信息覆盖小区A的信息，则历史驻留小区列表中将会存储小区D的信息，小区B的信息以及小区C的信息。
又示例性的，本发明实施例所提供的确定目标小区的方法还可以应用于小区切换的过程，在此不再赘述。
本发明实施例提供的一种确定目标小区的方法，包括：终端获取终端的历史驻留小区列表和终端的服务小区的邻区列表；若终端的服务小区的信号强度小于或等于第一预设值，则终端确定第一小区列表为服务小区的邻区列表和历史驻留小区列表；终端对第一小区列表中的小区进行测量，得到测量结果；终端根据测量结果，从第一小区列表中确定目标小区。
基于上述实施例的描述，本发明实施例提供的确定目标小区的方法及装置，当终端的服务小区的邻区不能满足终端进行重选或切换的条件时，可以将终端的历史驻留小区作为终端重选或切换的目标小区，从而减少终端发生掉网或业务中断的几率。
实施例三
本发明实施例提供一种确定目标小区的装置，如图4所示，为该装置的结构示意图，包括：
获取模块10，用于获取终端的历史驻留小区列表和终端的服务小区的邻区列表。
确定模块20，用于若终端的服务小区的信号强度小于或等于第一预 设值，则确定第一小区列表为服务小区的邻区列表和历史驻留小区列表。
测量模块30，用于对第一小区列表中的小区进行测量，得到测量结果。
确定模块20，还用于根据测量结果，从第一小区列表中确定目标小区。
测量模块30，具体用于：
对服务小区的邻区列表中的小区进行测量，得到服务小区的邻区的测量结果，并对历史驻留小区列表中的小区进行测量，得到历史驻留小区的测量结果；或者，对服务小区的邻区列表中的小区进行测量，若服务小区的邻区列表中的小区的信号强度小于第二预设值或者测量结果不满足预设条件，则对历史驻留小区列表中的小区进行测量，得到历史驻留小区的测量结果。
其中，历史驻留小区列表中包括预设数量的小区，历史驻留小区列表中的小区为终端掉网或掉话前最后驻留的小区。
如图5所示，确定目标小区的装置还包括：
记录模块40，用于将历史驻留小区按照终端驻留的时间先后顺序记录在历史驻留小区列表中。
设置模块50，用于为历史驻留小区列表中的每个历史驻留小区设置索引，索引用于指示终端离开该历史驻留小区后首次驻留的小区。
更新模块60，用于当终端离开某一个历史驻留小区的时间大于预设时长时，将该历史驻留小区的信息从历史驻留小区列表中删除。
本发明实施例提供一张确定目标小区的装置，包括：获取模块，用于获取终端的历史驻留小区列表和终端的服务小区的邻区列表；确定模块，用于若终端的服务小区的信号强度小于或等于第一预设值，则确定第一小区列表为服务小区的邻区列表和历史驻留小区列表；测量模块，用于对第一小区列表中的小区进行测量，得到测量结果；确定模块，用于根据测量结果，从第一小区列表中确定目标小区。
基于上述实施例的描述，本发明实施例提供的确定目标小区的方法及装置，当终端的服务小区的邻区不能满足终端进行重选或切换的条件 时，可以将终端的历史驻留小区作为终端重选或切换的目标小区，从而减少终端发生掉网或业务中断的几率。
实施例四
本发明实施例提供一种确定目标小区的装置，如图6所示，包括：
处理器70，用于获取终端的历史驻留小区列表和所述终端的服务小区的邻区列表；若所述终端的服务小区的信号强度小于或等于第一预设值，则确定第一小区列表为所述服务小区的邻区列表和所述历史驻留小区列表；对所述第一小区列表中的小区进行测量，得到测量结果；根据所述测量结果，从所述第一小区列表中确定目标小区。
处理器70，具体用于：
对所述服务小区的邻区列表中的小区进行测量，得到服务小区的邻区的测量结果，并对所述历史驻留小区列表中的小区进行测量，得到历史驻留小区的测量结果；或者，对所述服务小区的邻区列表中的小区进行测量，若所述服务小区的邻区列表中的小区的信号强度小于第二预设值或者测量结果不满足预设条件，则对所述历史驻留小区列表中的小区进行测量，得到所述历史驻留小区的测量结果。
历史驻留小区列表中包括预设数量的小区，历史驻留小区列表中的小区为终端掉网或掉话前最后驻留的小区。
该装置还包括：存储器80，用于将历史驻留小区按照终端驻留的时间先后顺序记录在历史驻留小区列表中。
处理器70，还用于为历史驻留小区列表中的每个历史驻留小区设置索引，索引用于指示终端离开该历史驻留小区后首次驻留的小区。
处理器70，还用于当终端离开某一个历史驻留小区的时间大于预设时长时，将该历史驻留小区的信息从历史驻留小区列表中删除。
本发明实施例提供一张确定目标小区的装置，包括：处理器，用于获取终端的历史驻留小区列表和终端的服务小区的邻区列表；若终端的服务小区的信号强度小于或等于第一预设值，则确定第一小区列表为服务小区的邻区列表和历史驻留小区列表；对第一小区列表中的小区进行测量，得到测量结果；根据测量结果，从第一小区列表中确定目标小区。
基于上述实施例的描述，本发明实施例提供的确定目标小区的方法及装置，当终端的服务小区的邻区不能满足终端进行重选或切换的条件时，可以将终端的历史驻留小区作为终端重选或切换的目标小区，从而减少终端发生掉网或业务中断的几率。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应所述以权利要求的保护范围为准。

Claims (18)

  1. 一种确定目标小区的方法，其特征在于，包括：
    终端获取所述终端的历史驻留小区列表和所述终端的服务小区的邻区列表；
    若所述终端的服务小区的信号强度小于或等于第一预设值，则所述终端确定第一小区列表为所述服务小区的邻区列表和所述历史驻留小区列表；
    所述终端对所述第一小区列表中的小区进行测量，得到测量结果；
    所述终端根据所述测量结果，从所述第一小区列表中确定目标小区。
  2. 根据权利要求1所述的确定目标小区的方法，其特征在于，所述终端对所述第一小区列表中的小区进行测量，得到测量结果，包括：
    所述终端对所述服务小区的邻区列表中的小区进行测量，得到服务小区的邻区的测量结果，并对所述历史驻留小区列表中的小区进行测量，得到历史驻留小区的测量结果；
    或者，
    所述终端对所述服务小区的邻区列表中的小区进行测量，若所述服务小区的邻区列表中的小区的信号强度小于第二预设值或者测量结果不满足预设条件，则对所述历史驻留小区列表中的小区进行测量，得到所述历史驻留小区的测量结果。
  3. 根据权利要求1或2所述的确定目标小区的方法，其特征在于，所述历史驻留小区列表中包括预设数量的小区，
    所述历史驻留小区列表中的小区为所述终端掉网或掉话前最后驻留的小区。
  4. 根据权利要求1-3任一项所述的确定目标小区的方法，其特征在于，所述方法还包括：
    所述终端将所述历史驻留小区按照所述终端驻留的时间先后顺序记录在所述历史驻留小区列表中。
  5. 根据权利要求1-4任一项所述的确定目标小区的方法，其特征在于，所述方法还包括：
    所述终端为所述历史驻留小区列表中的每个历史驻留小区设置索引，所述索引用于指示所述终端离开该历史驻留小区后首次驻留的小区。
  6. 根据权利要求1-5任一项所述的确定目标小区的方法，其特征在于，所述方法还包括：
    当所述终端离开某一个历史驻留小区的时间大于预设时长时，将该历史驻留小区的信息从所述历史驻留小区列表中删除。
  7. 一种确定目标小区的装置，其特征在于，包括：
    获取模块，用于获取终端的历史驻留小区列表和所述终端的服务小区的邻区列表；
    确定模块，用于若所述终端的服务小区的信号强度小于或等于第一预设值，则确定第一小区列表为所述服务小区的邻区列表和所述历史驻留小区列表；
    测量模块，用于对所述第一小区列表中的小区进行测量，得到测量结果；
    所述确定模块，用于根据所述测量结果，从所述第一小区列表中确定目标小区。
  8. 根据权利要求7所述的确定目标小区的装置，其特征在于，所述测量模块，具体用于：
    对所述服务小区的邻区列表中的小区进行测量，得到服务小区的邻区的测量结果，并对所述历史驻留小区列表中的小区进行测量，得到历史驻留小区的测量结果；
    或者，
    对所述服务小区的邻区列表中的小区进行测量，若所述服务小区的邻区列表中的小区的信号强度小于第二预设值或者测量结果不满足预设条件，则对所述历史驻留小区列表中的小区进行测量，得到所述历史驻留小区的测量结果。
  9. 根据权利要求7或8所述的确定目标小区的装置，其特征在于，所述历史驻留小区列表中包括预设数量的小区，
    所述历史驻留小区列表中的小区为所述终端掉网或掉话前最后驻留 的小区。
  10. 根据权利要求7-9任一项所述的确定目标小区的装置，其特征在于，所述装置还包括：
    记录模块，用于将所述历史驻留小区按照所述终端驻留的时间先后顺序记录在所述历史驻留小区列表中。
  11. 根据权利要求7-10任一项所述的确定目标小区的装置，其特征在于，所述装置还包括：
    设置模块，用于为所述历史驻留小区列表中的每个历史驻留小区设置索引，所述索引用于指示所述终端离开该历史驻留小区后首次驻留的小区。
  12. 根据权利要求7-11任一项所述的确定目标小区的装置，其特征在于，所述装置还包括：
    更新模块，用于当所述终端离开某一个历史驻留小区的时间大于预设时长时，将该历史驻留小区的信息从所述历史驻留小区列表中删除。
  13. 一种确定目标小区的装置，其特征在于，包括：
    处理器，用于获取终端的历史驻留小区列表和所述终端的服务小区的邻区列表；若所述终端的服务小区的信号强度小于或等于第一预设值，则确定第一小区列表为所述服务小区的邻区列表和所述历史驻留小区列表；对所述第一小区列表中的小区进行测量，得到测量结果；根据所述测量结果，从所述第一小区列表中确定目标小区。
  14. 根据权利要求13所述的确定目标小区的装置，其特征在于，所述处理器，具体用于：
    对所述服务小区的邻区列表中的小区进行测量，得到服务小区的邻区的测量结果，并对所述历史驻留小区列表中的小区进行测量，得到历史驻留小区的测量结果；
    或者，
    对所述服务小区的邻区列表中的小区进行测量，若所述服务小区的邻区列表中的小区的信号强度小于第二预设值或者测量结果不满足预设条件，则对所述历史驻留小区列表中的小区进行测量，得到所述历史驻留小区的测量结果。
  15. 根据权利要求13或14所述的确定目标小区的装置，其特征在于，所述历史驻留小区列表中包括预设数量的小区，
    所述历史驻留小区列表中的小区为所述终端掉网或掉话前最后驻留的小区。
  16. 根据权利要求13-15任一项所述的确定目标小区的装置，其特征在于，所述装置还包括：
    存储器，用于将所述历史驻留小区按照所述终端驻留的时间先后顺序记录在所述历史驻留小区列表中。
  17. 根据权利要求13-16任一项所述的确定目标小区的装置，其特征在于，
    所述处理器，还用于为所述历史驻留小区列表中的每个历史驻留小区设置索引，所述索引用于指示所述终端离开该历史驻留小区后首次驻留的小区。
  18. 根据权利要求13-17任一项所述的确定目标小区的装置，其特征在于，
    所述处理器，还用于当所述终端离开某一个历史驻留小区的时间大于预设时长时，将该历史驻留小区的信息从所述历史驻留小区列表中删除。
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