WO2014094280A1 - 一种小区切换方法及相关设备 - Google Patents

一种小区切换方法及相关设备 Download PDF

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Publication number
WO2014094280A1
WO2014094280A1 PCT/CN2012/087048 CN2012087048W WO2014094280A1 WO 2014094280 A1 WO2014094280 A1 WO 2014094280A1 CN 2012087048 W CN2012087048 W CN 2012087048W WO 2014094280 A1 WO2014094280 A1 WO 2014094280A1
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WO
WIPO (PCT)
Prior art keywords
cell
mode
switching
handover
strategy
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PCT/CN2012/087048
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English (en)
French (fr)
Inventor
王志峰
柳帅
解应春
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 CN201280021784.5A priority Critical patent/CN103596642A/zh
Priority to PCT/CN2012/087048 priority patent/WO2014094280A1/zh
Publication of WO2014094280A1 publication Critical patent/WO2014094280A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0083Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00837Determination of triggering parameters for hand-off
    • H04W36/008375Determination of triggering parameters for hand-off based on historical data
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/08Reselecting an access point

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a cell handover method and related device. Background technique
  • a user equipment In a wireless communication system, a user equipment (UE) needs to perform cell handover in many cases, such as a UE leaving a serving cell (ie, a source cell) moving to another cell (ie, a target cell), or a serving cell load imbalance.
  • a serving cell ie, a source cell
  • another cell ie, a target cell
  • serving cell load imbalance ie, a serving cell load imbalance.
  • cell switching is required to improve resource utilization.
  • the setting of the handover parameter is particularly important, and the radio resource management (RRM) in the base station (eNB) can automatically detect and adjust the dynamic parameters.
  • RRM radio resource management
  • the switching parameters are set unreasonably, problems such as HO ping-pongs, handover failure, and Radio Link Failures (RLF) may occur.
  • RLF Radio Link Failures
  • the hysteresis parameter is set unreasonably, it may cause a ping-pong effect.
  • 20090104909 proposes a method for reducing the probability of occurrence of ping-pong in the handover process, that is, in the handover scenario of the A-B-cell-A cell, delay processing is performed in the B-cell, but this is easy to cause the B-cell The handover fails later, and the handover of the B-cell-A cell is delayed, and the ping-pong effect of the A-cell-Bcell-Acell cannot be avoided.
  • the processing method in the above patents increases the difficulty of cell handover parameter optimization, and may also debug the timer on the eNB side before optimizing the cell switching parameters.
  • a first aspect of the present application provides a cell handover method, including:
  • the source cell reads the history information of the user equipment UE that is stored by the source cell, where the history information includes at least a cell identifier of the at least one cell that the UE recently camped on and a camping time of the corresponding cell.
  • the source cell identifies a handover mode of the UE according to the cell identifier and the camp time, and performs an early handover policy or a delayed handover policy on the UE according to the handover mode.
  • the source cell identifies a handover mode of the UE according to the cell identifier and the camp time, and performs an advance on the UE according to the handover mode.
  • the switching policy or the delayed switching policy specifically includes:
  • the source cell performs a delayed handover policy on the A-cell of the UE according to the mode 1.
  • the source cell identifies a handover mode of the UE according to the cell identifier and the camp time, and performs an advance on the UE according to the handover mode.
  • the switching policy or the delayed switching policy specifically includes:
  • the source cell identifies, according to the cell identifier, that the handover path of the UE is an A-cell-B cell-C cell, and the camping time of the UE in the B-cell is less than a third threshold, or
  • the handover path of the UE is greater than one A cell-B cell-C cell, and the average value, weighted average value, or summation value of the residence time of the UE in the B cell is less than the fourth threshold value. Determining that the switching mode is mode 2;
  • the source cell performs a delay switching policy on the handover of the A-cell-B cell of the UE according to the mode 2, or performs an early handover policy on the handover of the A-cell-C cell.
  • the source cell identifies a handover mode of the UE according to the cell identifier and the camp time, and performs an advance on the UE according to the handover mode.
  • the switching policy or the delayed switching policy specifically includes:
  • the source cell identifies that the handover path of the UE is an A-cell-B-B-cell according to the cell identifier, and the first time that the UE resides in the B-cell is less than a fifth threshold, or
  • the handover path of the UE is greater than one A cell-B cell-B cell, and the average value, weighted average value or summation value of the camp time of the first time in the B cell is less than the sixth threshold.
  • the value determines that the switching mode is mode 3;
  • the source cell performs a delay cut on the handover of the A cell-B cell of the UE according to the mode 3 Change strategy.
  • the source cell identifies a handover mode of the UE according to the cell identifier and the camp time, and performs an advance on the UE according to the handover mode.
  • the switching policy or the delayed switching policy specifically includes:
  • the source cell identifies, according to the cell identifier, that the handover path of the UE is an A-cell-A-cell, and the second time of the UE is less than a seventh threshold, or
  • the source cell performs an early switching policy on the handover of the A-cell-B cell of the UE according to the mode 4.
  • the delay switching policy is specifically:
  • the early handover policy is specifically:
  • the second aspect of the present application provides a base station device, including:
  • An information reading module configured to read historical information of the user equipment UE that is stored by the UE, where the historical information includes at least a cell identifier of the at least one cell that the UE recently camped on and a station in the corresponding cell Leave time
  • a processing module configured to identify a handover mode of the UE according to the cell identifier sent by the information reading module and the camping time, and perform an early handover policy or a delayed handover on the UE according to the handover mode Strategy.
  • the processing module includes:
  • a first mode determining unit configured to identify, according to the cell identifier, that the handover path of the UE is an A-cell-B-cell, and the camping time of the UE in the B-cell is less than a first threshold, Or the handover path of the UE is greater than one A cell-B cell-A cell, and the average value, weighted average value, or summation value of the residence time of the UE in the B cell is less than the second threshold value Determining that the switching mode is mode 1; And a first policy execution unit, configured to perform a delay switching policy on the handover of the A-cell-B cell of the UE according to the mode 1 that is determined by the first mode determining unit.
  • the processing module includes:
  • a second mode determining unit configured to identify, according to the cell identifier, that the handover path of the UE is an A-cell-B-C-cell, and the camping time of the UE in the B-cell is less than a third threshold, Or the handover path of the UE is greater than one A cell-B cell-C cell, and the average value, weighted average value, or summation value of the residence time of the UE in the B cell is less than the fourth threshold. Determining that the switching mode is mode 2;
  • a second policy execution unit configured to perform, according to the mode 2 that is determined by the second mode determining unit, performing a delayed handover policy on the handover of the A-cell-B cell of the UE, or switching from the A-C-C cell Perform an early switching strategy.
  • the processing module includes:
  • a third mode determining unit configured to identify, according to the cell identifier, that the handover path of the UE is an A-cell-B-cell, and the first time that the UE resides in the B-cell is less than the fifth Limit, or
  • the handover path of the UE is greater than one A cell-B cell-B cell, and the average value, weighted average value or summation value of the camp time of the first time in the B cell is less than the sixth threshold. Determining that the switching mode is mode 3;
  • a third policy execution unit configured to perform a delayed handover policy according to the mode 3 that is determined by the third mode determining unit to switch to the A-cell of the UE.
  • the processing module includes:
  • a fourth mode determining unit configured to identify, according to the cell identifier, that the handover path of the UE is an A-cell-A-cell, and the second time of the UE in the A-cell is less than a seventh Limit, or
  • the handover path of the UE is greater than one A cell-A cell-B cell, and the average value, weighted average value or summation value of the residence time of the UE in the second cell is less than the eighth threshold
  • the switching mode is mode 4;
  • a fourth policy execution unit configured to perform an early handover policy according to the mode 3 that is determined by the fourth mode determining unit to perform handover of the A-cell of the UE.
  • the delay switching policy is specifically:
  • the early handover policy is specifically:
  • a third aspect of the present application provides a base station device, including: an input device, an output device, a memory, and a processor, wherein the memory stores a set of program codes, and the processor is configured to invoke the storage in the memory.
  • the identification code and the dwell time identify a handover mode of the UE, and perform an early handover policy or a delayed handover policy on the UE according to the handover mode.
  • the processor performs a handover mode that identifies the UE according to the cell identifier and the camp time, and performs the UE according to the handover mode.
  • the specific way to switch policies in advance or delay the switching policy is:
  • the processor performs a handover mode that identifies the UE according to the cell identifier and the camp time, and performs the UE according to the handover mode.
  • the specific way to switch policies in advance or delay the switching policy is:
  • the handover path of the UE is greater than one A cell-B cell-C cell, and the average value, weighted average value, or summation value of the residence time of the UE in the B cell is less than the fourth threshold value. Determining that the switching mode is mode 2;
  • the processor performs a handover mode that identifies the UE according to the cell identifier and the camp time, and performs the UE according to the handover mode.
  • the specific way to switch policies in advance or delay the switching policy is:
  • the handover path of the UE is greater than one A cell-B cell-B cell, and the average value, weighted average value or summation value of the camp time of the first time in the B cell is less than the sixth threshold.
  • the value determines that the switching mode is mode 3;
  • the processor performs a handover mode that identifies the UE according to the cell identifier and the camp time, and performs the UE according to the handover mode.
  • the specific way to switch policies in advance or delay the switching policy is:
  • the handover path of the UE is greater than one A cell-A cell-B cell, and the average value, weighted average value or summation value of the residence time of the UE in the second cell is less than the eighth threshold
  • the value determines that the switching mode is mode 4;
  • the delay switching policy is specifically:
  • the early handover policy is specifically:
  • the present invention performs different handover strategies according to different cells in which the UE has recently camped and different time patterns in the corresponding cell. For UEs that have too late handover or too early handover problem, the UEs are prevented from erroneous handover during cell handover by early handover or delayed handover, and the probability of occurrence of problems such as handover failure and ping-pong effect is reduced.
  • the strategy of the present invention is performed for the UE, and does not affect the performance of other UEs while solving the problem that the specific UE is too late or too early to switch, and the individual can be improved. UE performance.
  • FIG. 1 is a flowchart of a cell handover method according to an embodiment of the present invention
  • FIG. 2 is a flowchart of another cell handover method according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of still another method for cell handover according to an embodiment of the present invention.
  • FIG. 5 is a flowchart of still another method for cell handover according to an embodiment of the present invention.
  • FIG. 6 is a structural diagram of a base station device according to an embodiment of the present invention.
  • FIG. 7 is a structural diagram of another base station device according to an embodiment of the present invention.
  • FIG. 8 is a structural diagram of still another base station device according to an embodiment of the present invention.
  • FIG. 9 is a structural diagram of still another base station device according to an embodiment of the present invention.
  • FIG. 10 is a structural diagram of still another base station device according to an embodiment of the present invention.
  • FIG. 11 is a structural diagram of a base station device according to an embodiment of the present invention. detailed description
  • FIG. 1 is a flowchart of a cell handover method according to an embodiment of the present invention, including:
  • the source cell reads the history information of the UE that is stored by the source cell, where the history information includes at least the cell identifier of the at least one cell that the UE recently camped on and the camp time of the corresponding cell.
  • the UE history information supports up to 16 recently visited cells, and each recently visited cell is marked with a cell identification code (Global Cell ID) and in each cell. Dwell time. The UE can be cut by this historical information source cell. Change the path.
  • a cell identification code Global Cell ID
  • the source cell identifies the handover mode of the UE according to the cell identifier and the camp time, and performs an early handover policy or a delayed handover policy according to the handover mode.
  • the source cell obtains the handover path of the UE from the UE history information stored in the UE, and formulates the handover policy according to the source cell.
  • the source cell does not need to obtain the handover information of the UE from other cells through the X2 interface, and does not need to use the X2 interface. Parameter adjustments can be made.
  • This embodiment is directed to the UE level, and the high speed UE or the stationary UE adopts a different strategy from the cell level parameter, thereby improving the performance of the individual UE.
  • different handover policies are performed according to different cells in which the UE has recently camped and different time patterns in the corresponding cell.
  • the UEs are prevented from erroneous handover during cell handover by early handover or delayed handover, and the probability of occurrence of problems such as handover failure and ping-pong effect is reduced.
  • the strategy of this embodiment is performed for the UE, and the performance of the individual UE may be improved without affecting the performance of other UEs while solving the problem that the specific UE is too late or too early to switch.
  • FIG. 2 is a flowchart of another cell handover method according to an embodiment of the present invention, which includes:
  • the source cell reads the history information of the UE that is stored by the source cell, where the history information includes at least the cell identifier of the at least one cell that the UE recently camped on and the camp time of the corresponding cell.
  • the source cell identifies, according to the cell identifier, that the handover path of the UE is an A-cell-B-cell, and the camping time of the UE in the B-cell is less than a first threshold, or the handover path of the UE is greater than one.
  • the A cell-B cell-A cell, and the average value, the weighted average value or the summation value of the dwell time of the B cell in the B cell is less than the second threshold value, and the switching mode is determined to be mode 1.
  • one of the average value, the weighted average value, or the summation value of the residence time of the B cell in the B cell may be selected as a judgment condition.
  • the determination condition of the mode 1 in the A-cell-B-cell-A cell whose handover path is greater than one time is: the handover path of the UE is greater than one A-B-cell-A cell, and The average value of the dwell time of the UE in the B cell is less than the second threshold.
  • the source cell performs a delay switching policy according to mode 1 for switching the A cell-B cell of the UE.
  • the delay switching strategy specifically reduces the A3 event (event A3), the A4 event (event A4),
  • CIO Cell Individual Offset
  • A5 event event A5
  • A6 event event A6
  • CIO The value obtained by adding the number to the actual measurement value is used in the event evaluation process of the UE.
  • the UE adds the original measurement value of the target cell to the offset and uses it as a measurement result for the handover decision of the UE, and moves in the handover algorithm.
  • the role of the cell boundary is used in the event evaluation process of the UE.
  • the source cell quality is a better quality cell for the target cell, and the cell B does not have a stable handover.
  • the capability in this case, by performing a delayed handover policy on the UE, the UE handover number and the number of dropped calls can be reduced, and the ping-pong effect is prevented.
  • FIG. 3 is a flowchart of still another method for cell handover according to an embodiment of the present invention, which includes:
  • the source cell reads the history information of the UE that is stored by the source cell, where the history information includes at least a cell identifier of the at least one cell that the UE is currently camped on and a camping time of the corresponding cell.
  • the source cell identifies, according to the cell identifier, that the handover path of the UE is an A-cell-B-C-cell, and the camping time of the UE in the B-cell is less than a third threshold, or the handover path of the UE is greater than
  • the primary cell-B cell-C cell is once, and the average mode, the weighted average value, or the summation value of the camping time of the B cell in each time is less than the fourth threshold value, and the switching mode is determined to be mode 2.
  • the handover path is greater than one A cell-B cell-C cell
  • one of the average value, the weighted average value, or the summation value of the camp time of the B cell may be selected as the judgment condition.
  • the determination condition of the mode in which the handover path is greater than one A cell-B cell-C cell is: the handover path of the UE is greater than one A-cell-B-cell, and The average value of the dwell time of the UE in the B cell is less than the fourth threshold.
  • the delay switching policy is specifically to reduce the CIO parameters under the conditions of event A3, event A4, event A5 or event A6, and the same strategy is adopted for the delay switching of the same frequency switching and the inter-frequency switching.
  • the early switching policy is specifically to increase the CIO parameters under the conditions of event A3, event A4, event A5 or event A6.
  • the above strategies are adopted for the early switching of the same frequency switching and the inter-frequency switching.
  • the value obtained by adding the CIO parameter and the actual measured value is used in the event evaluation process of the UE.
  • the UE adds the original measurement value of the target cell to the offset and uses it as a measurement result for the handover decision of the UE, and plays the role in the handover algorithm.
  • the role of the mobile cell boundary is specifically to reduce the CIO parameters under the conditions of event A3, event A4, event A5 or event A6, and the same strategy is adopted for the delay switching of the same frequency switching and the inter-frequency switching.
  • the early switching policy is specifically to increase the CIO parameters under the conditions of
  • a UE camping time in the B cell is less than a certain value, it indicates that the cell B is not Having a stable handover capability, in this case, performing a late handover policy by switching the A-cell to the B-cell of the UE, or performing an early handover policy on the handover of the A-C-cell, can prevent the UE from switching to the premature handover
  • the B cell switches to the C cell too late to prevent erroneous handover from occurring, thereby reducing the number of UE dropped calls.
  • FIG. 4 is a flowchart of still another method for cell handover according to an embodiment of the present invention, which includes:
  • the source cell reads the history information of the UE that is stored by the source cell, where the history information includes at least a cell identifier of the at least one cell that the UE is currently camped on and a camping time of the corresponding cell.
  • the switching mode is determined as Mode 3.
  • the handover path is greater than one A cell-B cell-B cell
  • one of the average value, the weighted average value, or the summation value of the dwell time of the first time in the B cell may be selected. Analyzing conditions. For example, if the average value is selected as the determination condition, the determination condition of the mode 3 in the A-cell-B-cell-B cell where the handover path is greater than one time is: the handover path of the UE is greater than one time, the A-cell-B-cell, And the average value of the dwell time of the UE in the B cell is less than the sixth threshold.
  • the source cell performs a delay switching policy according to mode 3 for switching the A-cell of the UE.
  • the delay switching strategy refers to FIG. 2, and the embodiment of FIG. 3 is not described here.
  • the handover path is the A-cell-B-cell and the camping time of the UE in the B is short, it can be inferred that the signal of the B-cell is poor, and the UE moves after the call-out occurs in the B-cell, Reconstruction to the B-cell, by performing a delayed handover policy on the handover of the A-cell to the B-cell of the UE, can prevent the UE from switching to the B-cell too early, preventing erroneous handover from occurring, thereby reducing the number of dropped calls.
  • FIG. 5 is a flowchart of still another method for cell handover according to an embodiment of the present invention, which includes:
  • the source cell identifies, according to the cell identifier, that the handover path of the UE is an A-cell-A-cell, and the second time of the UE is less than a seventh threshold, or the handover of the UE
  • the path is greater than one A cell-A cell-B cell, and the second time of the UE is in the A cell
  • the average mode, the weighted average value, or the summed value is less than the eighth threshold value, and the switching mode is determined to be mode 4.
  • the handover path is greater than one A cell-A cell-B cell, one of the average value, the weighted average value, or the summation value of the camp time of the second cell of the UE may be selected as the second time.
  • the determination condition of the mode 4 in the A cell-A cell-B cell where the handover path is greater than one time is: the handover path of the UE is greater than one time, the A cell-A cell-B cell, And the average value of the dwell time of the UE in the second time of the second time is less than the eighth threshold.
  • the source cell performs an early handover policy according to mode 4 for switching the A-cell of the UE.
  • the delay switching strategy refers to FIG. 2, and the embodiment of FIG. 3 is not described here.
  • the handover path is the A-cell-A-cell and the UE has a short camping time in the A-cell for a second time, it can be inferred that the signal of the A-cell is poor, and the UE moves after the call occurs in the A-cell. And re-establishing or switching to the B-cell, performing an early handover policy by switching the A-cell to the B-cell of the UE, and switching to the B-cell as soon as possible, avoiding dropped calls in the A-cell, thereby reducing the number of UE handovers and the number of dropped calls. .
  • FIG. 6 is a structural diagram of a base station device according to an embodiment of the present invention.
  • the base station device 600 includes: an information reading module 601 and a processing module 602, where:
  • the information reading module 601 is configured to read the history information of the UE that is stored by the UE, where the history information includes at least a cell identifier of the at least one cell that the UE recently camped on and a residence time of the corresponding cell.
  • the processing module 602 is configured to identify a handover mode of the UE according to the cell identifier and the camp time sent by the information reading module 601, and perform an early handover policy or a delay handover policy on the UE according to the handover mode.
  • different handover policies are performed according to different cells in which a UE has recently camped and different time patterns in the corresponding cell.
  • the UEs are prevented from erroneous handover during cell handover by early handover or delayed handover, and the probability of occurrence of problems such as handover failure and ping-pong effect is reduced.
  • the strategy of this embodiment is performed for the UE, and the performance of the individual UE is solved.
  • FIG. 7 is a structural diagram of another base station apparatus according to an embodiment of the present invention.
  • the base station apparatus 700 includes: an information reading module 701 and a processing module 702, an information reading module 701, and processing.
  • the function description of the module 702 is described with reference to the embodiment of FIG. 6 , and details are not described herein.
  • the processing module 702 includes a first mode determining unit 7021 and a first policy executing unit 7022:
  • the first mode determining unit 7021 is configured to identify, according to the cell identifier, that the handover path of the UE is an A-cell-B-cell, and the camping time of the UE in the B-cell is less than a first threshold, or the UE The switching path is greater than one A cell-B cell-A cell, and the UE determines that the switching mode is mode when the average value, the weighted average value, or the summation value of the B cell is less than the second threshold value. 1;
  • the handover path is greater than one A cell-B cell-A cell
  • one of the average value, the weighted average value, or the summation value of the residence time of the B cell in the B cell may be selected as the first
  • the mode judging unit 7021 judges the judgment condition of the mode 1. For example, if the average value is used as the determination condition, the determination condition of the mode 1 in the A-cell-B-cell-A cell where the handover path is greater than one time is: the handover path of the UE is greater than one A-B-cell-A-cell, And the average value of the camping time of the UE in the B cell is less than the second threshold.
  • the first policy execution unit 7022 is configured to perform a delay switching policy on the handover of the A-cell-B cell of the UE according to the mode 1 determined by the first mode determining unit 7021.
  • the delay switching strategy is specifically to reduce CIO parameters under the conditions of A3 event (event A3), A4 event (event A4), A5 event (event A5) or A6 event (event A6), co-frequency switching and inter-frequency switching.
  • the above strategy is adopted for delay switching.
  • the value obtained by adding the CIO parameter to the actual measured value is used in the event evaluation process of the UE.
  • the UE adds the offset to the original measured value of the target cell as a measurement result, and is used for the handover decision of the UE, and plays a role in the handover algorithm.
  • the role of the mobile cell boundary is specifically to reduce CIO parameters under the conditions of A3 event (event A3), A4 event (event A4), A5 event (event A5) or A6 event (event A6), co-frequency switching and inter-frequency switching.
  • the above strategy is adopted for delay switching.
  • the value obtained by adding the CIO parameter to the actual measured value is used in the event evaluation process of the UE.
  • the base station device can reduce the number of UE handovers and the number of dropped calls by performing a delayed handover policy on the UE, thereby preventing the occurrence of the ping-pong effect.
  • FIG. 8 is a structural diagram of still another base station device according to an embodiment of the present invention.
  • the base station device 800 includes: an information reading module 801 and a processing module 802, an information reading module 801, and a processing module 802.
  • the function description refers to the embodiment of FIG. 6 , and details are not described herein again.
  • the processing module 802 includes a second mode determining unit 8021 and a second policy executing unit 8022:
  • the second mode determining unit 8021 is configured to identify that the handover path of the UE according to the cell identifier is an A-cell-B-C-cell, and the camping time of the UE in the B-cell is less than a third threshold, or The handover path of the UE is greater than one A cell-B cell-C cell, and the UE determines the handover mode each time the average value, the weighted average value, or the summation value of the camped time of the B cell is less than the fourth threshold value. For mode 2.
  • the handover path is greater than one A cell-B cell-C cell
  • one of the average value, the weighted average value, or the summation value of the camp time of the B cell may be selected as the judgment condition.
  • the A-cell-B-cell-C-cell second mode determination unit 8021 that determines that the handover path is greater than one time determines that the determination condition of the mode 2 is: the handover path of the UE is greater than one A-cell- The B-cell is a C-cell, and the average value of the dwell time of the UE in the B-cell is less than the fourth threshold.
  • the second policy execution unit 8022 is configured to perform a delayed handover policy according to the mode 2 determined by the second mode determining unit 8021, or perform early handover on the handover of the A-C-cell. Strategy.
  • the delay switching policy is specifically to reduce the CIO parameters under the conditions of event A3, event A4, event A5 or event A6, and the same strategy is adopted for the delay switching of the same frequency switching and the inter-frequency switching.
  • the early switching policy is specifically to increase the CIO parameters under the conditions of event A3, event A4, event A5 or event A6.
  • the above strategies are adopted for the early switching of the same frequency switching and the inter-frequency switching.
  • the value obtained by adding the CIO parameter and the actual measured value is used in the event evaluation process of the UE.
  • the UE adds the original measurement value of the target cell to the offset and uses it as a measurement result for the handover decision of the UE, and plays the role in the handover algorithm.
  • the role of the mobile cell boundary is specifically to reduce the CIO parameters under the conditions of event A3, event A4, event A5 or event A6, and the same strategy is adopted for the delay switching of the same frequency switching and the inter-frequency switching.
  • the early switching policy is specifically to increase the CIO parameters under the conditions of
  • the base station device performs a delay by switching to the A-cell of the UE.
  • the handover policy, or the early handover policy is performed on the handover of the A-cell to the C-cell, to prevent the UE from switching to the B-cell too early or too late, to prevent erroneous handover from occurring, thereby reducing the number of UE handovers and the number of dropped calls.
  • FIG. 9 is a structural diagram of still another base station device according to an embodiment of the present invention.
  • the base station device 900 includes: an information reading module 901 and a processing module 902, and an information reading module 901 and a processing module 902.
  • the function description refers to the embodiment of FIG. 6 , and details are not described herein again.
  • the processing module 902 includes a third mode determining unit 9021 and a third policy executing unit 9022:
  • a third mode determining unit 9021 configured to identify, according to the cell identifier, that the handover path of the UE is an A-cell-B-cell, and the first time that the UE is in the B-cell is less than a fifth threshold, or The handover path of the UE is greater than one A cell-B cell-B cell, and the average value, weighted average value or summation value of the residence time of the UE in the first time of the B cell is less than the sixth threshold value. It is judged that the switching mode is mode 3.
  • the handover path is greater than one A cell-B cell-B cell
  • one of the average value, the weighted average value, or the summation value of the dwell time of the first time in the B cell may be selected.
  • the third mode judging unit 9021 judges the judgment condition of the module 3. For example, if the average value is used as the determination condition, the determination condition of the mode 3 in the A cell-B cell-B cell where the handover path is greater than one time is: the handover path of the UE is greater than one time, the A cell-B cell-B cell, and The average value of the dwell time of the UE in the B cell is less than the sixth threshold.
  • the third policy execution unit 9022 is configured to perform a delay switching policy according to the mode 3 determined by the third mode determining unit 90221 for the handover of the A-cell of the UE.
  • the delay switching policy refers to the embodiment of FIG. 7 and FIG. 8 , and details are not described herein again.
  • the handover path is the A-cell-B-cell and the camping time of the UE in the B is short, it can be inferred that the signal of the B-cell is poor, and the UE moves after the call occurs in the B-cell.
  • the UE is re-established to the B-cell, and the delay handover policy is implemented by the base station device to switch the A-cell to the B-cell of the UE to prevent the UE from switching to the B-cell too early, thereby preventing erroneous handover from occurring, thereby reducing the number of UE handovers and the number of dropped calls.
  • FIG. 10 is a structural diagram of still another base station device according to an embodiment of the present invention.
  • the base station device 1000 includes: an information reading module 1001 and a processing module 1002, and an information reading module 1001 and a processing module 1002.
  • the function description refers to the embodiment of FIG. 6 , and details are not described herein again.
  • the processing module 1002 includes a fourth mode determining unit 10021 and a fourth policy executing unit 10022:
  • the fourth mode determining unit 10021 is configured to identify, according to the cell identifier, that the handover path of the UE is an A-cell-A-cell, and the second time of the UE is less than a seventh threshold, or The handover path of the UE is greater than one A cell-A cell-B cell, and the average value, weighted average value or summation value of the camping time of the second cell of the UE is less than the eighth threshold value Judge the switching mode to mode 4;
  • the handover path is greater than one A cell-A cell-B cell
  • one of the average value, the weighted average value, or the summation value of the camp time of the second cell of the UE may be selected as the second time.
  • the fourth mode determination unit 10021 determines the determination condition of the mode 4. For example, if the average value is selected as the determination condition, the determination condition of the mode 4 under the A cell-A cell-B cell whose handover path is greater than one time is: The handover path of the UE is greater than one A cell-A cell-B cell, and the average value of the camp time of the UE in the second time is less than the eighth threshold.
  • the handover path is the A cell-A cell-B cell and the UE has a short camp time in the A cell for the second time, it can be inferred that the signal of the A cell is poor, and the UE moves after the call occurs in the A cell due to the UE moving.
  • the UE may be re-established or switched to the B-cell, and the early handover policy may be performed by the base station to perform the handover of the A-cell to the B-cell of the UE, so as to avoid the call-off in the A-cell, thereby reducing the number of UE handovers and the number of dropped calls. Prevent the occurrence of ping-pong effects.
  • the historical information of the user equipment UE stored by the UE is read, where the history information includes at least a cell identifier of at least one cell in which the UE is currently camped and a camping time in the corresponding cell.
  • the handover mode of the UE is identified according to the cell identification code and the dwell time, and the early handover policy or the delayed handover policy is performed on the UE according to the handover mode.
  • the processor 1104 is configured to perform the handover mode of the UE according to the cell identifier and the camping time, and perform the handover policy or the delay handover policy on the UE according to the handover mode.
  • the handover path is the A cell-B cell-A cell, and the camping time of the UE in the B cell is less than the first threshold, or the handover path of the UE is greater than one A-cell-B-cell, and the The switching mode is determined to be mode 1 when the average value, the weighted average value, or the summation value of the dwell time of the B cell is less than the second threshold value.
  • a delay switching policy is performed according to mode 1 for handover of the A-cell of the UE.
  • the processor 1104 is configured to perform the handover mode of the UE according to the cell identifier and the camping time, and perform the handover policy or the delay handover policy on the UE according to the handover mode.
  • the handover path of the UE is identified as the A-cell-B-C-cell according to the cell identifier, and the camping time of the UE in the B-cell is less than the third threshold, or the handover path of the UE is greater than one A.
  • the cell-B cell-C cell, and the average value, the weighted average value or the summation value of the dwell time of the B cell in the B cell is less than the fourth threshold value, and the switching mode is determined to be mode 2.
  • the processor 1104 is configured to perform the handover mode of the UE according to the cell identifier and the camping time, and perform the handover policy or the delay handover policy on the UE according to the handover mode.
  • the handover path of the UE is identified as the cell-B-B cell according to the cell identifier, and the camping time of the UE in the B-cell is less than the fifth threshold, or the handover path of the UE is greater than one.
  • the A cell-B cell-B cell, and the average value, the weighted average value or the summation value of the dwell time of the B cell in the first time of the UE is less than the sixth threshold value, and the switching mode is determined to be mode 3.
  • a delay switching policy is performed according to mode 3 for handover of the A-cell of the UE.
  • the processor 1104 is configured to perform the handover mode of the UE according to the cell identifier and the camping time, and perform the handover policy or the delay handover policy on the UE according to the handover mode.
  • the handover path of the UE is identified as the cell-A-cell-B cell according to the cell identifier, and the camping time of the UE in the second cell is less than the seventh threshold, or the handover path of the UE is greater than one time.
  • the A cell-A cell-B cell, and the average value, the weighted average value or the summation value of the dwell time of the second cell in the second cell is less than the eighth threshold value, and the switching mode is determined to be mode 4.
  • the early handover policy is performed according to mode 4 for the handover of the A-cell of the UE.
  • different handover policies are performed according to different cells in which the UE has recently camped and different time patterns in the corresponding cell.
  • the probability of triggering the handover too early or triggering the handover too late in the cell handover process is reduced by early handover or delayed handover, thereby reducing the number of handovers of the UE, avoiding handover failure, ping-pong effect, and the like, and the parameter adjustment can be performed without using the X2 interface. .
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (Random Access Memory).

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Abstract

本发明公开了一种小区切换方法及相关设备,所述方法包括:源小区读取自身存储的用户设备UE的历史信息,其中,所述历史信息至少包括所述UE最近驻留的至少一个小区的小区识别码和在相应的所述小区的驻留时间;所述源小区根据所述小区识别码和所述驻留时间识别所述UE的切换模式,并根据所述切换模式对所述UE执行提前切换策略或者延迟切换策略。可以降低UE在小区切换过程中被太早或者太迟触发切换的发生概率,从而避免切换错误,避免切换失败,乒乓效应等问题。

Description

一种小区切换方法及相关设备 技术领域
本发明涉及通信技术领域, 尤其涉及一种小区切换方法及相关设备。 背景技术
在无线通信系统中, 用户设备 ( User Equipment , UE )在很多情形下需要进 行小区切换, 如 UE离开服务小区 (即源小区)移动到另一个小区 (即目标小 区), 或者服务小区负载不平衡时为了实现资源共享, 或者 UE与服务小区业务 特性不符时为了提高资源利用率等都需要进行小区切换。
在小区切换过程中, 切换参数的设置尤为重要, 基站(eNB ) 中的无线资源 管理器( Radio Resource Management, RRM ) 可以自动检测并调整动态参数。 然而如果切换参数设置得不合理就会出现乒乓效应 ( HO ping-pongs )、 切换失 败、 无线连接失败(Radio Link Failures, RLF )等问题。 例如, 如果迟滞参数 设置得不合理就可能引起乒乓效应。美国专利 US20090104909提出了一种降低 切换过程中乒乓效应发生概率的方法, 即在 A小区 -B小区 -A小区的切换场景 中, 在 B小区中进行延迟处理, 但这样容易造成 B小区 -A小区切换较晚造成 切换失败,且延迟了 B小区 -A小区的切换无法避免 A小区 -B小区 -A小区的乒 乓效应。 上述专利中的处理方式加大了小区切换参数优化的难度, 优化小区切 换参数之前可能还要调试 eNB侧的定时器。
总结起来, 太迟触发切换、 太早触发切换, 都会造成切换失败, 乒乓效应等 一系列与切换相关的问题。 发明内容
本发明所要解决的技术问题是提供一种小区切换方法及相关设备, 用于降 低 UE在小区切换过程中被太早触发切换或者太迟触发切换的发生概率。
本申请第一方面提供一种小区切换方法, 包括:
源小区读取自身存储的用户设备 UE的历史信息,其中,所述历史信息至少 包括所述 UE 最近驻留的至少一个小区的小区识别码和在相应的所述小区的驻 留时间; 所述源小区根据所述小区识别码和所述驻留时间识别所述 UE的切换模式, 并根据所述切换模式对所述 UE执行提前切换策略或者延迟切换策略。
在第一方面的第一种可能的实现方式中, 所述源小区根据所述小区识别码 和所述驻留时间识别所述 UE的切换模式,并根据所述切换模式对所述 UE执行 提前切换策略或者延迟切换策略具体包括:
若所述源小区根据所述小区识别码识别所述 UE的切换路径为 A小区 -B小 区 -A小区, 且所述 UE在 B小区的驻留时间小于第一门限值, 或者
所述 UE的切换路径为大于一次的 A小区 -B小区 -A小区, 且所述 UE各次 在 B小区的驻留时间的平均值、 加权平均值或者求和值小于第二门限值则判断 所述切换模式为模式 1;
所述源小区根据所述模式 1对所述 UE的 A小区 -B小区执行延迟切换策略。 在第一方面的第二种可能的实现方式中, 所述源小区根据所述小区识别码 和所述驻留时间识别所述 UE的切换模式,并根据所述切换模式对所述 UE执行 提前切换策略或者延迟切换策略具体包括:
若所述源小区根据所述小区识别码识别所述 UE的切换路径为 A小区 -B小 区 -C小区, 且所述 UE在 B小区的驻留时间小于第三门限值, 或者
所述 UE的切换路径为大于一次的 A小区 -B小区 -C小区, 且所述 UE各次 在 B小区的驻留时间的平均值、 加权平均值或者求和值小于第四门限值则判断 所述切换模式为模式 2;
所述源小区根据所述模式 2对所述 UE的 A小区 -B小区的切换执行延迟切 换策略, 或者对 A小区 -C小区的切换执行提前切换策略。
在第一方面的第三种可能的实现方式中, 所述源小区根据所述小区识别码 和所述驻留时间识别所述 UE的切换模式,并根据所述切换模式对所述 UE执行 提前切换策略或者延迟切换策略具体包括:
若所述源小区根据所述小区识别码识别所述 UE的切换路径为 A小区 -B小 区 -B小区, 且所述 UE第一次在 B小区的驻留时间小于第五门限值, 或者
所述 UE的切换路径为大于一次的 A小区 -B小区 -B小区, 且所述 UE各第 一次在 B小区的驻留时间的平均值、 加权平均值或者求和值小于第六门限值则 判断所述切换模式为模式 3;
所述源小区根据所述模式 3对所述 UE的 A小区 -B小区的切换执行延迟切 换策略。
在第一方面的第四种可能的实现方式中, 所述源小区根据所述小区识别码 和所述驻留时间识别所述 UE的切换模式,并根据所述切换模式对所述 UE执行 提前切换策略或者延迟切换策略具体包括:
若所述源小区根据所述小区识别码识别所述 UE的切换路径为 A小区 -A小 区 -B小区, 且所述 UE第二次在 A小区的驻留时间小于第七门限值, 或者
所述 UE的切换路径为大于一次的 A小区 -A小区 -B小区, 且所述 UE各第 二次在 A小区的驻留时间的平均值、 加权平均值或者求和值小于第八门限值则 判断所述切换模式为模式 4;
所述源小区根据所述模式 4对所述 UE的 A小区 -B小区的切换执行提前切 换策略。
结合第一方面的第一种至第三种可能的实现方式中的任一可能的实现方 式, 在第五种可能的实现方式中, 所述延迟切换策略具体为:
减小 A3事件、 A4事件、 A5事件或者 A6事件条件下的小区偏置参数。 结合第一方面的第二种或第四种可能的实现方式, 在第六种可能的实现方 式中, 所述提前切换策略具体为:
增大 A3事件、 A4事件、 A5事件或者 A6事件条件下的小区偏置参数。 本申请第二方面提供一种基站设备, 包括:
信息读取模块, 用于读取自身存储的用户设备 UE的历史信息, 其中, 所述 历史信息至少包括所述 UE 最近驻留的至少一个小区的小区识别码和在相应的 所述小区的驻留时间;
处理模块, 用于根据所述信息读取模块发送的所述小区识别码和所述驻留 时间识别所述 UE的切换模式,并根据所述切换模式对所述 UE执行提前切换策 略或者延迟切换策略。
在第二方面的第一种可能的实现方式中, 所述处理模块包括:
第一模式判断单元,用于在根据所述小区识别码识别所述 UE的切换路径为 A小区 -B小区 -A小区, 且所述 UE在 B小区的驻留时间小于第一门限值, 或者 所述 UE的切换路径为大于一次的 A小区 -B小区 -A小区, 且所述 UE各次 在 B小区的驻留时间的平均值、 加权平均值或者求和值小于第二门限值时判断 所述切换模式为模式 1; 第一策略执行单元,用于根据所述第一模式判断单元判断得出的所述模式 1 对所述 UE的 A小区 -B小区的切换执行延迟切换策略。
在第二方面的第二种可能的实现方式中, 所述处理模块包括:
第二模式判断单元,用于在根据所述小区识别码识别所述 UE的切换路径为 A小区 -B小区 -C小区, 且所述 UE在 B小区的驻留时间小于第三门限值, 或者 所述 UE的切换路径为大于一次的 A小区 -B小区 -C小区, 且所述 UE各次 在 B小区的驻留时间的平均值、 加权平均值或者求和值小于第四门限值时判断 所述切换模式为模式 2;
第二策略执行单元,用于根据所述第二模式判断单元判断得出的所述模式 2 对所述 UE的 A小区 -B小区的切换执行延迟切换策略,或者对 A小区 -C小区的 切换执行提前切换策略。
在第二方面的第三种可能的实现方式中, 所述处理模块包括:
第三模式判断单元,用于在根据所述小区识别码识别所述 UE的切换路径为 A小区 -B小区 -B小区,且所述 UE第一次在 B小区的驻留时间小于第五门限值, 或者
所述 UE的切换路径为大于一次的 A小区 -B小区 -B小区, 且所述 UE各第 一次在 B小区的驻留时间的平均值、 加权平均值或者求和值小于第六门限值时 判断所述切换模式为模式 3;
第三策略执行单元,用于根据所述第三模式判断单元判断得出的所述模式 3 对所述 UE的 A小区 -B小区的切换执行延迟切换策略。
在第二方面的第四种可能的实现方式中, 所述处理模块包括:
第四模式判断单元,用于在根据所述小区识别码识别所述 UE的切换路径为 A小区 -A小区 -B小区,且所述 UE第二次在 A小区的驻留时间小于第七门限值, 或者
所述 UE的切换路径为大于一次的 A小区 -A小区 -B小区, 且所述 UE各第 二次在 A小区的驻留时间的平均值、 加权平均值或者求和值小于第八门限值时 判断所述切换模式为模式 4;
第四策略执行单元,用于根据所述第四模式判断单元判断得出的所述模式 3 对所述 UE的 A小区 -B小区的切换执行提前切换策略。
结合第二方面的第一种至第三种可能的实现方式中的任一可能的实现方 式, 在第五种可能的实现方式中, 所述延迟切换策略具体为:
减小 A3事件、 A4事件、 A5事件或者 A6事件条件下的小区偏置参数。 结合第二方面的第二种或第四种可能的实现方式, 在第六种可能的实现方 式中, 所述提前切换策略具体为:
增大 A3事件、 A4事件、 A5事件或者 A6事件条件下的小区偏置参数。 本申请第三方面提供一种基站设备, 包括: 输入装置、 输出装置、 存储器 和处理器, 其特征在于, 所述存储器中存储一组程序代码, 且所述处理器用于 调用所述存储器中存储的程序代码, 用于执行以下操作:
读取自身存储的用户设备 UE的历史信息,其中,所述历史信息至少包括所 述 UE最近驻留的至少一个小区的小区识别码和在相应的所述小区的驻留时间; 根据所述小区识别码和所述驻留时间识别所述 UE的切换模式,并根据所述 切换模式对所述 UE执行提前切换策略或者延迟切换策略。
在第三方面的第一种可能的实现方式中, 所述处理器执行根据所述小区识 别码和所述驻留时间识别所述 UE的切换模式, 并根据所述切换模式对所述 UE 执行提前切换策略或者延迟切换策略的具体方式为:
若根据所述小区识别码识别所述 UE的切换路径为 A小区 -B小区 -A小区, 且所述 UE在 B小区的驻留时间小于第一门限值, 或者
所述 UE的切换路径为大于一次的 A小区 -B小区 -A小区, 且所述 UE各次 在 B小区的驻留时间的平均值、 加权平均值或者求和值小于第二门限值则判断 所述切换模式为模式 1;
根据所述模式 1对所述 UE的 A小区 -B小区的切换执行延迟切换策略。 在第三方面的第二种可能的实现方式中, 所述处理器执行根据所述小区识 别码和所述驻留时间识别所述 UE的切换模式, 并根据所述切换模式对所述 UE 执行提前切换策略或者延迟切换策略的具体方式为:
若根据所述小区识别码识别所述 UE的切换路径为 A小区 -B小区 -C小区, 且所述 UE在 B小区的驻留时间小于第三门限值, 或者
所述 UE的切换路径为大于一次的 A小区 -B小区 -C小区, 且所述 UE各次 在 B小区的驻留时间的平均值、 加权平均值或者求和值小于第四门限值则判断 所述切换模式为模式 2;
根据所述模式 2对所述 UE的 A小区 -B小区的切换执行延迟切换策略, 或 者对 A小区 -C小区的切换执行提前切换策略。
在第三方面的第三种可能的实现方式中, 所述处理器执行根据所述小区识 别码和所述驻留时间识别所述 UE的切换模式, 并根据所述切换模式对所述 UE 执行提前切换策略或者延迟切换策略的具体方式为:
若根据所述小区识别码识别所述 UE的切换路径为 A小区 -B小区 -B小区, 且所述 UE第一次在 B小区的驻留时间小于第五门限值, 或者
所述 UE的切换路径为大于一次的 A小区 -B小区 -B小区, 且所述 UE各第 一次在 B小区的驻留时间的平均值、 加权平均值或者求和值小于第六门限值则 判断所述切换模式为模式 3;
根据所述模式 3对所述 UE的 A小区 -B小区的切换执行延迟切换策略。 在第三方面的第四种可能的实现方式中, 所述处理器执行根据所述小区识 别码和所述驻留时间识别所述 UE的切换模式, 并根据所述切换模式对所述 UE 执行提前切换策略或者延迟切换策略的具体方式为:
若根据所述小区识别码识别所述 UE的切换路径为 A小区 -A小区 -B小区, 且所述 UE第二次在 A小区的驻留时间小于第七门限值, 或者
所述 UE的切换路径为大于一次的 A小区 -A小区 -B小区, 且所述 UE各第 二次在 A小区的驻留时间的平均值、 加权平均值或者求和值小于第八门限值则 判断所述切换模式为模式 4;
根据所述模式 4对所述 UE的 A小区 -B小区的切换执行提前切换策略。 结合第三方面的第一种至第三种可能的实现方式中的任一可能的实现方 式, 在第五种可能的实现方式中, 所述延迟切换策略具体为:
减小 A3事件、 A4事件、 A5事件或者 A6事件条件下的小区偏置参数。 结合第三方面的第二种或第四种可能的实现方式, 在第六种可能的实现方 式中, 所述提前切换策略具体为:
增大 A3事件、 A4事件、 A5事件或者 A6事件条件下的小区偏置参数。 本发明根据 UE最近驻留过的小区和在相应的小区的停留时间识别不同模 式来执行不同的切换策略。 对于存在太迟切换或者太早切换问题的 UE, 通过提 前切换或者延迟切换来防止这些 UE在小区切换过程中的错误切换,降低切换失 败, 乒乓效应等问题出现的概率。 本发明的策略是针对 UE进行的, 在解决特定 UE太迟切换或者太早切换问题的同时并不影响其它 UE的性能, 可以提高个体 UE的性能。 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筒单地介绍, 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是本发明实施例提供的一种小区切换方法的流程图;
图 2是本发明实施例提供的另一种小区切换方法的流程图;
图 3是本发明实施例提供的再一种小区切换方法的流程图;
图 4是本发明实施例提供的又一种小区切换方法的流程图;
图 5是本发明实施例提供的又一种小区切换方法的流程图;
图 6是本发明实施例提供的一种基站设备的结构图;
图 7是本发明实施例提供的另一种基站设备的结构图;
图 8是本发明实施例提供的再一种基站设备的结构图;
图 9是本发明实施例提供的又一种基站设备的结构图;
图 10是本发明实施例提供的又一种基站设备的结构图;
图 11是本发明实施例提供的一种基站设备的结构图。 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。
请参考图 1 ,图 1是本发明实施例提供的一种小区切换方法的流程图,包括:
101、 源小区读取自身存储的 UE的历史信息, 其中, 该历史信息中至少包 括该 UE最近驻留的至少一个小区的小区识别码和在相应的小区的驻留时间。
根据 36413、 36423协议中关于 UE历史信息的描述, UE历史信息中最多支 持 16个最近访问的小区,且对每个最近访问的小区都标记了小区标识码( Global Cell ID )及在各个小区的驻留时间。通过这个历史信息源小区可以获得 UE的切 换路径。
102、 源小区根据小区识别码和驻留时间识别该 UE的切换模式, 并根据切 换模式对该 UE执行提前切换策略或者延迟切换策略。
本实施例中源小区从本身存储的 UE历史信息中获得 UE的切换路径并据此 制定切换策略, 切换过程中源小区不需要通过 X2接口从其它小区获取 UE的切 换信息, 不用基于 X2接口就可以进行参数调整。 本实施例是针对 UE级的, 高 速 UE或者静止 UE都采用与小区级参数不同的策略, 提高了个体 UE的性能。
本实施例根据 UE 最近驻留过的小区和在相应的小区的停留时间识别不同 模式来执行不同的切换策略。 对于存在太迟切换或者太早切换问题的 UE, 通过 提前切换或者延迟切换来防止这些 UE在小区切换过程中的错误切换,降低切换 失败, 乒乓效应等问题出现的概率。 本实施例的策略是针对 UE进行的, 在解决 特定 UE太迟切换或者太早切换问题的同时并不影响其它 UE的性能,可以提高 个体 UE的性能。
请参考图 2, 图 2是本发明实施例提供的另一种小区切换方法的流程图, 包 括:
201、 源小区读取自身存储的 UE的历史信息, 其中, 该历史信息中至少包 括该 UE最近驻留的至少一个小区的小区识别码和在相应的小区的驻留时间。
202、 若源小区根据小区识别码识别该 UE的切换路径为 A小区 -B小区 -A 小区,且该 UE在 B小区的驻留时间小于第一门限值,或者 UE的切换路径为大 于一次的 A小区 -B小区 -A小区, 且该 UE各次在 B小区的驻留时间的平均值、 加权平均值或者求和值小于第二门限值则判断切换模式为模式 1。
具体实施中, 若切换路径为大于一次的 A小区 -B小区 -A小区, 可以选择该 UE各次在 B小区的驻留时间的平均值、加权平均值或者求和值中的一个作为判 断条件。 例如选择平均值作为判断条件, 则切换路径为大于一次的 A小区 -B小 区 -A小区下的模式 1的判断条件为: UE的切换路径为大于一次的 A小区 -B小 区 -A小区, 且 UE各次在 B小区的驻留时间的平均值小于第二门限值。
203、源小区根据模式 1对该 UE的 A小区 -B小区的切换执行延迟切换策略。 其中, 延迟切换策略具体为减小 A3事件(event A3 )、 A4事件( event A4 )、
A5事件( event A5 )或者 A6事件( event A6 )条件下的小区偏置( Cell Individual Offset, CIO )参数, 同频切换和异频切换的延迟切换均采用上述策略。 CIO参 数与实际测量值相加所得的数值用于 UE的事件评估过程, UE将目标小区的原 始测量值加上这个偏置后作为测量结果, 用于 UE的切换判决,在切换算法中起 到移动小区边界的作用。
在切换过程中, 若某 UE在 B小区驻留时间小于一定的值, 又返回到源小 区, 说明源小区质量对于目标小区而言属于质量更好的小区, 而小区 B不具备 稳定的切换承接能力,在这种情况下通过对该 UE执行延迟切换策略可以减少该 UE切换次数及掉话次数, 防止乒乓效应的产生。
请参考图 3, 图 3是本发明实施例提供的再一种小区切换方法的流程图, 包 括:
301、 源小区读取自身存储的 UE的历史信息, 其中, 该历史信息中至少包 括该 UE最近驻留的至少一个小区的小区识别码和在相应的小区的驻留时间。
302、 若源小区根据小区识别码识别该 UE的切换路径为 A小区 -B小区 -C 小区,且该 UE在 B小区的驻留时间小于第三门限值,或者该 UE的切换路径为 大于一次的 A小区 -B小区 -C小区,且该 UE各次在 B小区的驻留时间的平均值、 加权平均值或者求和值小于第四门限值则判断切换模式为模式 2。
具体实施中, 若切换路径为大于一次的 A小区 -B小区 -C小区, 可以选择该 UE各次在 B小区的驻留时间的平均值、加权平均值或者求和值中的一个作为判 断条件。 例如选择平均值作为判断条件, 则切换路径为大于一次的 A小区 -B小 区 -C小区下的模式 的判断条件为: 该 UE的切换路径为大于一次的 A小区 -B 小区 -C小区, 且该 UE各次在 B小区的驻留时间的平均值小于第四门限值。
303、源小区根据模式 2对该 UE的 A小区 -B小区的切换执行延迟切换策略, 或者对 A小区 -C小区的切换执行提前切换策略。
其中,延迟切换策略具体为减小 event A3、 event A4、 event A5或者 event A6 条件下的 CIO参数, 同频切换和异频切换的延迟切换均采用上述策略。 提前切 换策略具体为增加 event A3、 event A4、 event A5或者 event A6条件下的 CIO参 数, 同频切换和异频切换的提前切换均采用上述策略。 CIO 参数与实际测量值 相加所得的数值用于 UE的事件评估过程, UE将目标小区的原始测量值加上这 个偏置后作为测量结果,用于 UE的切换判决,在切换算法中起到移动小区边界 的作用。
在切换过程中, 若某 UE在 B小区驻留时间小于一定的值, 说明小区 B不 具备稳定的切换承接能力, 在这种情况下通过对该 UE的 A小区 -B小区的切换 执行延迟切换策略, 或者对 A小区 -C小区的切换执行提前切换策略, 可以避免 UE过早切换到 B小区或者过晚切换到 C小区, 防止错误的切换发生,从而减少 UE掉话次数。
请参考图 4, 图 4是本发明实施例提供的又一种小区切换方法的流程图, 包 括:
401、 源小区读取自身存储的 UE的历史信息, 其中, 该历史信息中至少包 括该 UE最近驻留的至少一个小区的小区识别码和在相应的小区的驻留时间。
402、 若源小区根据小区识别码识别该 UE的切换路径为 A小区 -B小区 -B 小区,且该 UE第一次在 B小区的驻留时间小于第五门限值, 或者该 UE的切换 路径为大于一次的 A小区 -B小区 -B小区,且该 UE各第一次在 B小区的驻留时 间的平均值、 加权平均值或者求和值小于第六门限值则判断切换模式为模式 3。
具体实施中, 若切换路径为大于一次的 A小区 -B小区 -B小区, 可以选择该 UE各第一次在 B小区的驻留时间的平均值、加权平均值或者求和值中的一个作 为判断条件。 例如选择平均值作为判断条件, 则切换路径为大于一次的 A小区 -B小区 -B小区下的模式 3的判断条件为: 该 UE的切换路径为大于一次的 A小 区 -B小区 -B小区,且该 UE各次在 B小区的驻留时间的平均值小于第六门限值。
403、源小区根据模式 3对该 UE的 A小区 -B小区的切换执行延迟切换策略。 其中, 延迟切换策略参考图 2、 图 3实施例这里不再赘述。
如果切换路径为 A小区 -B小区 -B小区且 UE第一次在 B中的驻留时间很短, 可以推测 B小区的信号较差, UE在 B小区中出现掉话后由于 UE移动, 又重建 到 B小区, 通过对 UE的 A小区 -B小区的切换执行延迟切换策略可以避免 UE 过早切换到 B小区, 防止错误的切换发生, 从而减少掉话次数。
请参考图 5, 图 5是本发明实施例提供的又一种小区切换方法的流程图, 包 括:
501、 源小区读取自身存储的 UE的历史信息, 其中, 该历史信息中至少包 括该 UE最近驻留的至少一个小区的小区识别码和在相应的小区的驻留时间。
502、 若源小区根据小区识别码识别该 UE的切换路径为 A小区 -A小区 -B 小区,且该 UE第二次在 A小区的驻留时间小于第七门限值,或者该 UE的切换 路径为大于一次的 A小区 -A小区 -B小区,且该 UE各第二次在 A小区的驻留时 间的平均值、 加权平均值或者求和值小于第八门限值则判断切换模式为模式 4。 具体实施中, 若切换路径为大于一次的 A小区 -A小区 -B小区, 可以选择该 UE各第二次在 A小区的驻留时间的平均值、加权平均值或者求和值中的一个作 为判断条件。 例如选择平均值作为判断条件, 则切换路径为大于一次的 A小区 -A小区 -B小区下的模式 4的判断条件为: 该 UE的切换路径为大于一次的 A小 区 -A小区 -B小区,且该 UE各第二次在 A小区的驻留时间的平均值小于第八门 限值。
503、源小区根据模式 4对该 UE的 A小区 -B小区的切换执行提前切换策略。 其中, 延迟切换策略参考图 2、 图 3实施例这里不再赘述。
如果切换路径为 A小区 -A小区 -B小区且该 UE第二次在 A小区中的驻留时 间很短,可以推测 A小区的信号较差, UE在 A小区中出现掉话后由于 UE移动, 又重建或者切换到 B小区, 通过对该 UE的 A小区 -B小区的切换执行提前切换 策略可以尽快切换到 B小区, 避免在 A小区中出现掉话, 从而减少 UE切换次 数及掉话次数。
请参考图 6, 图 6是本发明实施例提供的一种基站设备的结构图, 所述基站 设备 600包括: 信息读取模块 601和处理模块 602, 其中:
信息读取模块 601 , 用于读取自身存储的 UE的历史信息, 其中, 历史信息 中至少包括该 UE 最近驻留的至少一个小区的小区识别码和在相应的小区的驻 留时间;
处理模块 602,用于根据信息读取模块 601发送的小区识别码和驻留时间识 别所述 UE的切换模式,并根据所述切换模式对该 UE执行提前切换策略或者延 迟切换策略。
本实施例根据某 UE 最近驻留过的小区和在相应的小区的停留时间识别不 同模式来执行不同的切换策略。 对于存在太迟切换或者太早切换问题的 UE, 通 过提前切换或者延迟切换来防止这些 UE在小区切换过程中的错误切换,降低切 换失败, 乒乓效应等问题出现的概率。 本实施例的策略是针对 UE进行的, 在解 高个体 UE的性能。
请参考图 7, 图 7是本发明实施例提供的另一种基站设备的结构图, 所述基 站设备 700包括: 信息读取模块 701和处理模块 702, 信息读取模块 701和处理 模块 702的功能描述参考图 6实施例, 这里不再赘述, 其中, 处理模块 702包 括第一模式判断单元 7021和第一策略执行单元 7022:
第一模式判断单元 7021 , 用于在根据小区识别码识别 UE的切换路径为 A 小区 -B小区 -A小区, 且该 UE在 B小区的驻留时间小于第一门限值, 或者该 UE的切换路径为大于一次的 A小区 -B小区 -A小区, 且该 UE各次在 B小区的 驻留时间的平均值、 加权平均值或者求和值小于第二门限值时判断切换模式为 模式 1;
具体实施中, 若切换路径为大于一次的 A小区 -B小区 -A小区, 可以选择该 UE各次在 B小区的驻留时间的平均值、加权平均值或者求和值中的一个作为第 一模式判断单元 7021判断模式 1的判断条件。 例如选择平均值作为判断条件, 则切换路径为大于一次的 A小区 -B小区 -A小区下的模式 1的判断条件为: 该 UE的切换路径为大于一次的 A小区 -B小区 -A小区, 且该 UE各次在 B小区的 驻留时间的平均值小于第二门限值。
第一策略执行单元 7022,用于根据第一模式判断单元 7021判断得出的模式 1对 UE的 A小区 -B小区的切换执行延迟切换策略。
其中, 延迟切换策略具体为减小 A3事件(event A3 )、 A4事件( event A4 )、 A5事件( event A5 )或者 A6事件( event A6 )条件下的 CIO参数, 同频切换和 异频切换的延迟切换均采用上述策略。 CIO 参数与实际测量值相加所得的数值 用于 UE的事件评估过程, UE将目标小区的原始测量值加上这个偏置后作为测 量结果, 用于 UE的切换判决, 在切换算法中起到移动小区边界的作用。
在切换过程中, 若该 UE在 B小区驻留时间小于一定的值, 又返回到源小 区, 说明源小区质量对于目标小区而言属于质量更好的小区, 而小区 B不具备 稳定的切换承接能力,在这种情况下基站设备通过对该 UE执行延迟切换策略可 以减少 UE切换次数及掉话次数, 防止乒乓效应的产生。
请参考图 8, 图 8是本发明实施例提供的再一种基站设备的结构图, 所述基 站设备 800包括: 信息读取模块 801和处理模块 802, 信息读取模块 801和处理 模块 802的功能描述参考图 6实施例, 这里不再赘述, 其中, 处理模块 802包 括第二模式判断单元 8021和第二策略执行单元 8022:
第二模式判断单元 8021 , 用于在根据小区识别码识别 UE的切换路径为 A 小区 -B小区 -C小区, 且该 UE在 B小区的驻留时间小于第三门限值, 或者该 UE的切换路径为大于一次的 A小区 -B小区 -C小区, 且该 UE各次在 B小区的 驻留时间的平均值、 加权平均值或者求和值小于第四门限值时判断切换模式为 模式 2。
具体实施中, 若切换路径为大于一次的 A小区 -B小区 -C小区, 可以选择该 UE各次在 B小区的驻留时间的平均值、加权平均值或者求和值中的一个作为判 断条件。 例如选择平均值作为判断条件, 则切换路径为大于一次的 A小区 -B小 区 -C小区下第二模式判断单元 8021判断模式 2的判断条件为: 该 UE的切换路 径为大于一次的 A小区 -B小区 -C小区,且该 UE各次在 B小区的驻留时间的平 均值小于第四门限值。
第二策略执行单元 8022,用于根据第二模式判断单元 8021判断得出的模式 2对该 UE的 A小区 -B小区的切换执行延迟切换策略, 或者对 A小区 -C小区的 切换执行提前切换策略。
其中,延迟切换策略具体为减小 event A3、 event A4、 event A5或者 event A6 条件下的 CIO参数, 同频切换和异频切换的延迟切换均采用上述策略。 提前切 换策略具体为增加 event A3、 event A4、 event A5或者 event A6条件下的 CIO参 数, 同频切换和异频切换的提前切换均采用上述策略。 CIO 参数与实际测量值 相加所得的数值用于 UE的事件评估过程, UE将目标小区的原始测量值加上这 个偏置后作为测量结果,用于 UE的切换判决,在切换算法中起到移动小区边界 的作用。
在切换过程中, 若该 UE在 B小区驻留时间小于一定的值, 说明小区 B不 具备稳定的切换承接能力, 在这种情况下基站设备通过对 UE的 A小区 -B小区 的切换执行延迟切换策略, 或者对 A小区 -C小区的切换执行提前切换策略, 可 以避免 UE过早或者过晚切换到 B小区,, 防止错误的切换发生, 从而减少 UE 切换次数及掉话次数。
请参考图 9, 图 9是本发明实施例提供的又一种基站设备的结构图, 所述基 站设备 900包括: 信息读取模块 901和处理模块 902, 信息读取模块 901和处理 模块 902的功能描述参考图 6实施例, 这里不再赘述, 其中, 处理模块 902包 括第三模式判断单元 9021和第三策略执行单元 9022:
第三模式判断单元 9021 , 用于在根据小区识别码识别 UE的切换路径为 A 小区 -B小区 -B小区, 且该 UE第一次在 B小区的驻留时间小于第五门限值, 或 者该 UE的切换路径为大于一次的 A小区 -B小区 -B小区, 且该 UE各第一次在 B小区的驻留时间的平均值、加权平均值或者求和值小于第六门限值时判断切换 模式为模式 3。
具体实施中, 若切换路径为大于一次的 A小区 -B小区 -B小区, 可以选择该 UE各第一次在 B小区的驻留时间的平均值、加权平均值或者求和值中的一个作 为第三模式判断单元 9021判断模块 3的判断条件。 例如选择平均值作为判断条 件, 则切换路径为大于一次的 A小区 -B小区 -B小区下的模式 3的判断条件为: UE的切换路径为大于一次的 A小区 -B小区 -B小区, 且 UE各次在 B小区的驻 留时间的平均值小于第六门限值。
第三策略执行单元 9022, 用于根据第三模式判断单元 90221判断得出的模 式 3对该 UE的 A小区 -B小区的切换执行延迟切换策略。
其中, 延迟切换策略参考图 7、 图 8实施例, 这里不再赘述。
如果切换路径为 A小区 -B小区 -B小区且该 UE第一次在 B中的驻留时间很 短, 可以推测 B小区的信号较差, UE在 B小区中出现掉话后由于 UE移动, 又 重建到 B小区, 通过基站设备对 UE的 A小区 -B小区的切换执行延迟切换策略 可以避免 UE过早切换到 B小区, 防止错误的切换发生,从而减少 UE切换次数 及掉话次数。
请参考图 10, 图 10是本发明实施例提供的又一种基站设备的结构图, 所述 基站设备 1000包括: 信息读取模块 1001和处理模块 1002, 信息读取模块 1001 和处理模块 1002的功能描述参考图 6实施例, 这里不再赘述, 其中, 处理模块 1002包括第四模式判断单元 10021和第四策略执行单元 10022:
第四模式判断单元 10021 , 用于在根据小区识别码识别 UE的切换路径为 A 小区 -A小区 -B小区, 且该 UE第二次在 A小区的驻留时间小于第七门限值, 或 者该 UE的切换路径为大于一次的 A小区 -A小区 -B小区, 且该 UE各第二次在 A 小区的驻留时间的平均值、 加权平均值或者求和值小于第八门限值时判断切 换模式为模式 4;
具体实施中, 若切换路径为大于一次的 A小区 -A小区 -B小区, 可以选择该 UE各第二次在 A小区的驻留时间的平均值、加权平均值或者求和值中的一个作 为第四模式判断单元 10021判断模式 4的判断条件。 例如选择平均值作为判断 条件,则切换路径为大于一次的 A小区 -A小区 -B小区下的模式 4的判断条件为: 该 UE的切换路径为大于一次的 A小区 -A小区 -B小区, 且该 UE各第二次在 A 小区的驻留时间的平均值小于第八门限值。
第四策略执行单元 10022,用于根据第四模式判断单元 10021判断得出的模 式 3对 UE的 A小区 -B小区的切换执行提前切换策略。
其中, 提前切换策略参考图 7、 图 8实施例, 这里不再赘述。
如果切换路径为 A小区 -A小区 -B小区且 UE第二次在 A小区中的驻留时间 很短, 可以推测 A小区的信号较差, UE在 A小区中出现掉话后由于 UE移动, 又重建或者切换到 B小区, 通过基站对 UE的 A小区 -B小区的切换执行提前切 换策略可以尽快切换到 B小区, 避免在 A小区中出现掉话, 从而减少 UE切换 次数及掉话次数, 防止乒乓效应的产生。
请参考图 11 , 图 11是本发明实施例提供的一种基站设备的结构图, 所述基 站设备 1100包括: 输入装置 1101、输出装置 1102、存储器 1103和处理器 1104: 存储器 1104中存储一组程序代码, 且处理器 1104用于调用存储器 1103中 存储的程序代码, 用于执行以下操作:
读取自身存储的用户设备 UE的历史信息,其中,所述历史信息至少包括该 UE最近驻留的至少一个小区的小区识别码和在相应的小区的驻留时间。
根据小区识别码和驻留时间识别该 UE 的切换模式, 并根据切换模式对该 UE执行提前切换策略或者延迟切换策略。
可选的,处理器 1104执行根据小区识别码和驻留时间识别 UE的切换模式, 并根据切换模式对 UE执行提前切换策略或者延迟切换策略的具体方式可以为: 若根据小区识别码识别 UE的切换路径为 A小区 -B小区 -A小区, 且该 UE 在 B小区的驻留时间小于第一门限值, 或者该 UE的切换路径为大于一次的 A 小区 -B小区 -A小区, 且该 UE各次在 B小区的驻留时间的平均值、 加权平均值 或者求和值小于第二门限值则判断所述切换模式为模式 1。
根据模式 1对该 UE的 A小区 -B小区的切换执行延迟切换策略。
可选的,处理器 1104执行根据小区识别码和驻留时间识别 UE的切换模式, 并根据切换模式对 UE执行提前切换策略或者延迟切换策略的具体方式还可以 为:
若根据小区识别码识别 UE的切换路径为 A小区 -B小区 -C小区, 且该 UE 在 B小区的驻留时间小于第三门限值, 或者该 UE的切换路径为大于一次的 A 小区 -B小区 -C小区, 且该 UE各次在 B小区的驻留时间的平均值、 加权平均值 或者求和值小于第四门限值则判断所述切换模式为模式 2。
根据模式 2对 UE的 A小区 -B小区的切换执行延迟切换策略, 或者对 A小 区 -C小区的切换执行提前切换策略。
可选的,处理器 1104执行根据小区识别码和驻留时间识别 UE的切换模式, 并根据切换模式对 UE执行提前切换策略或者延迟切换策略的具体方式还可以 为:
若根据小区识别码识别 UE的切换路径为 A小区 -B小区 -B小区, 且该 UE 第一次在 B小区的驻留时间小于第五门限值, 或者该 UE的切换路径为大于一 次的 A小区 -B小区 -B小区, 且该 UE各第一次在 B小区的驻留时间的平均值、 加权平均值或者求和值小于第六门限值则判断切换模式为模式 3。
根据模式 3对该 UE的 A小区 -B小区的切换执行延迟切换策略。
可选的,处理器 1104执行根据小区识别码和驻留时间识别 UE的切换模式, 并根据切换模式对 UE执行提前切换策略或者延迟切换策略的具体方式还可以 为:
若根据小区识别码识别 UE的切换路径为 A小区 -A小区 -B小区, 且该 UE 第二次在 A小区的驻留时间小于第七门限值, 或者该 UE的切换路径为大于一 次的 A小区 -A小区 -B小区, 且该 UE各第二次在 A小区的驻留时间的平均值、 加权平均值或者求和值小于第八门限值则判断切换模式为模式 4。
根据模式 4对该 UE的 A小区 -B小区的切换执行提前切换策略。
本实施例根据 UE 最近驻留过的小区和在相应的小区的停留时间识别不同 模式来执行不同的切换策略。 通过提前切换或者延迟切换来降低小区切换过程 中太早触发切换或者太迟触发切换的发生概率,从而减少 UE切换次数,避免切 换失败, 乒乓效应等问题, 且不用基于 X2接口就可以进行参数调整。
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, 筒称 RAM )等。
以上所揭露的仅为本发明较佳实施例而已, 当然不能以此来限定本发明之 权利范围, 因此依本发明权利要求所作的等同变化, 仍属本发明所涵盖的范围

Claims

权 利 要 求
1、 一种小区切换方法, 其特征在于, 包括:
源小区读取自身存储的用户设备 UE的历史信息,其中,所述历史信息至少 包括所述 UE 最近驻留的至少一个小区的小区识别码和在相应的所述小区的驻 留时间;
所述源小区根据所述小区识别码和所述驻留时间识别所述 UE的切换模式, 并根据所述切换模式对所述 UE执行提前切换策略或者延迟切换策略。
2、 根据权利要求 1所述的方法, 其特征在于, 所述源小区根据所述小区识 别码和所述驻留时间识别所述 UE的切换模式, 并根据所述切换模式对所述 UE 执行提前切换策略或者延迟切换策略具体包括:
若所述源小区根据所述小区识别码识别所述 UE的切换路径为 A小区 -B小 区 -A小区, 且所述 UE在 B小区的驻留时间小于第一门限值, 或者
所述 UE的切换路径为大于一次的 A小区 -B小区 -A小区, 且所述 UE各次 在 B小区的驻留时间的平均值、 加权平均值或者求和值小于第二门限值则判断 所述切换模式为模式 1;
所述源小区根据所述模式 1对所述 UE的 A小区 -B小区执行延迟切换策略。
3、 根据权利要求 1所述的方法, 其特征在于, 所述源小区根据所述小区识 别码和所述驻留时间识别所述 UE的切换模式, 并根据所述切换模式对所述 UE 执行提前切换策略或者延迟切换策略具体包括:
若所述源小区根据所述小区识别码识别所述 UE的切换路径为 A小区 -B小 区 -C小区, 且所述 UE在 B小区的驻留时间小于第三门限值, 或者
所述 UE的切换路径为大于一次的 A小区 -B小区 -C小区, 且所述 UE各次 在 B小区的驻留时间的平均值、 加权平均值或者求和值小于第四门限值则判断 所述切换模式为模式 2;
所述源小区根据所述模式 2对所述 UE的 A小区 -B小区的切换执行延迟切 换策略, 或者对 A小区 -C小区的切换执行提前切换策略。
4、 根据权利要求 1所述的方法, 其特征在于, 所述源小区根据所述小区识 别码和所述驻留时间识别所述 UE的切换模式, 并根据所述切换模式对所述 UE 执行提前切换策略或者延迟切换策略具体包括: 若所述源小区根据所述小区识别码识别所述 UE的切换路径为 A小区 -B小 区 -B小区, 且所述 UE第一次在 B小区的驻留时间小于第五门限值, 或者
所述 UE的切换路径为大于一次的 A小区 -B小区 -B小区, 且所述 UE各第 一次在 B小区的驻留时间的平均值、 加权平均值或者求和值小于第六门限值则 判断所述切换模式为模式 3;
所述源小区根据所述模式 3对所述 UE的 A小区 -B小区的切换执行延迟切 换策略。
5、 根据权利要求 1所述的方法, 其特征在于, 所述源小区根据所述小区识 别码和所述驻留时间识别所述 UE的切换模式, 并根据所述切换模式对所述 UE 执行提前切换策略或者延迟切换策略具体包括:
若所述源小区根据所述小区识别码识别所述 UE的切换路径为 A小区 -A小 区 -B小区, 且所述 UE第二次在 A小区的驻留时间小于第七门限值, 或者
所述 UE的切换路径为大于一次的 A小区 -A小区 -B小区, 且所述 UE各第 二次在 A小区的驻留时间的平均值、 加权平均值或者求和值小于第八门限值则 判断所述切换模式为模式 4;
所述源小区根据所述模式 4对所述 UE的 A小区 -B小区的切换执行提前切 换策略。
6、 根据权利 2至 4任一项所述的方法, 其特征在于, 所述延迟切换策略具 体为:
减小 A3事件、 A4事件、 A5事件或者 A6事件条件下的小区偏置参数。
7、 根据权利 3或 5所述的方法, 其特征在于, 所述提前切换策略具体为: 增大 A3事件、 A4事件、 A5事件或者 A6事件条件下的小区偏置参数。
8、 一种基站设备, 其特征在于, 包括:
信息读取模块, 用于读取自身存储的用户设备 UE的历史信息, 其中, 所述 历史信息至少包括所述 UE 最近驻留的至少一个小区的小区识别码和在相应的 所述小区的驻留时间;
处理模块, 用于根据所述信息读取模块发送的所述小区识别码和所述驻留 时间识别所述 UE的切换模式,并根据所述切换模式对所述 UE执行提前切换策 略或者延迟切换策略。
9、 根据权利要求 8所述的设备, 其特征在于, 所述处理模块包括: 第一模式判断单元,用于在根据所述小区识别码识别所述 UE的切换路径为 A小区 -B小区 -A小区, 且所述 UE在 B小区的驻留时间小于第一门限值, 或者 所述 UE的切换路径为大于一次的 A小区 -B小区 -A小区, 且所述 UE各次 在 B小区的驻留时间的平均值、 加权平均值或者求和值小于第二门限值时判断 所述切换模式为模式 1;
第一策略执行单元,用于根据所述第一模式判断单元判断得出的所述模式 1 对所述 UE的 A小区 -B小区的切换执行延迟切换策略。
10、 根据权利要求 8所述的设备, 其特征在于, 所述处理模块包括: 第二模式判断单元,用于在根据所述小区识别码识别所述 UE的切换路径为
A小区 -B小区 -C小区, 且所述 UE在 B小区的驻留时间小于第三门限值, 或者 所述 UE的切换路径为大于一次的 A小区 -B小区 -C小区, 且所述 UE各次 在 B小区的驻留时间的平均值、 加权平均值或者求和值小于第四门限值时判断 所述切换模式为模式 2;
第二策略执行单元,用于根据所述第二模式判断单元判断得出的所述模式 2 对所述 UE的 A小区 -B小区的切换执行延迟切换策略,或者对 A小区 -C小区的 切换执行提前切换策略。
11、 根据权利要求 8所述的设备, 其特征在于, 所述处理模块包括: 第三模式判断单元,用于在根据所述小区识别码识别所述 UE的切换路径为
A小区 -B小区 -B小区,且所述 UE第一次在 B小区的驻留时间小于第五门限值, 或者
所述 UE的切换路径为大于一次的 A小区 -B小区 -B小区, 且所述 UE各第 一次在 B小区的驻留时间的平均值、 加权平均值或者求和值小于第六门限值时 判断所述切换模式为模式 3;
第三策略执行单元,用于根据所述第三模式判断单元判断得出的所述模式 3 对所述 UE的 A小区 -B小区的切换执行延迟切换策略。
12、 根据权利要求 8所述的设备, 其特征在于, 所述处理模块包括: 第四模式判断单元,用于在根据所述小区识别码识别所述 UE的切换路径为 A小区 -A小区 -B小区,且所述 UE第二次在 A小区的驻留时间小于第七门限值, 或者
所述 UE的切换路径为大于一次的 A小区 -A小区 -B小区, 且所述 UE各第 二次在 A小区的驻留时间的平均值、 加权平均值或者求和值小于第八门限值时 判断所述切换模式为模式 4;
第四策略执行单元,用于根据所述第四模式判断单元判断得出的所述模式 3 对所述 UE的 A小区 -B小区的切换执行提前切换策略。
13、 根据权利 9至 11任一项所述的设备, 其特征在于, 所述延迟切换策略 具体为:
减小 A3事件、 A4事件、 A5事件或者 A6事件条件下的小区偏置参数。
14、 根据权利 10或 12所述的设备, 其特征在于, 所述提前切换策略具体 为:
增大 A3事件、 A4事件、 A5事件或者 A6事件条件下的小区偏置参数。
15、 一种基站设备, 包括: 输入装置、 输出装置、 存储器和处理器, 其特 征在于, 所述存储器中存储一组程序代码, 且所述处理器用于调用所述存储器 中存储的程序代码, 用于执行以下操作:
读取自身存储的用户设备 UE的历史信息,其中,所述历史信息至少包括所 述 UE最近驻留的至少一个小区的小区识别码和在相应的所述小区的驻留时间; 根据所述小区识别码和所述驻留时间识别所述 UE的切换模式,并根据所述 切换模式对所述 UE执行提前切换策略或者延迟切换策略。
16、 根据权利要求 15所述的设备, 其特征在于, 所述处理器执行根据所述 小区识别码和所述驻留时间识别所述 UE的切换模式,并根据所述切换模式对所 述 UE执行提前切换策略或者延迟切换策略的具体方式为:
若根据所述小区识别码识别所述 UE的切换路径为 A小区 -B小区 -A小区, 且所述 UE在 B小区的驻留时间小于第一门限值, 或者
所述 UE的切换路径为大于一次的 A小区 -B小区 -A小区, 且所述 UE各次 在 B小区的驻留时间的平均值、 加权平均值或者求和值小于第二门限值则判断 所述切换模式为模式 1;
根据所述模式 1对所述 UE的 A小区 -B小区的切换执行延迟切换策略。
17、 根据权利要求 15所述的设备, 其特征在于, 所述处理器执行根据所述 小区识别码和所述驻留时间识别所述 UE的切换模式,并根据所述切换模式对所 述 UE执行提前切换策略或者延迟切换策略的具体方式为:
若根据所述小区识别码识别所述 UE的切换路径为 A小区 -B小区 -C小区, 且所述 UE在 B小区的驻留时间小于第三门限值, 或者
所述 UE的切换路径为大于一次的 A小区 -B小区 -C小区, 且所述 UE各次 在 B小区的驻留时间的平均值、 加权平均值或者求和值小于第四门限值则判断 所述切换模式为模式 2;
根据所述模式 2对所述 UE的 A小区 -B小区的切换执行延迟切换策略, 或 者对 A小区 -C小区的切换执行提前切换策略。
18、 根据权利要求 15所述的设备, 其特征在于, 所述处理器执行根据所述 小区识别码和所述驻留时间识别所述 UE的切换模式,并根据所述切换模式对所 述 UE执行提前切换策略或者延迟切换策略的具体方式为:
若根据所述小区识别码识别所述 UE的切换路径为 A小区 -B小区 -B小区, 且所述 UE第一次在 B小区的驻留时间小于第五门限值, 或者
所述 UE的切换路径为大于一次的 A小区 -B小区 -B小区, 且所述 UE各第 一次在 B小区的驻留时间的平均值、 加权平均值或者求和值小于第六门限值则 判断所述切换模式为模式 3;
根据所述模式 3对所述 UE的 A小区 -B小区的切换执行延迟切换策略。
19、 根据权利要求 15所述的设备, 其特征在于, 所述处理器执行根据所述 小区识别码和所述驻留时间识别所述 UE的切换模式,并根据所述切换模式对所 述 UE执行提前切换策略或者延迟切换策略的具体方式为:
若根据所述小区识别码识别所述 UE的切换路径为 A小区 -A小区 -B小区, 且所述 UE第二次在 A小区的驻留时间小于第七门限值, 或者
所述 UE的切换路径为大于一次的 A小区 -A小区 -B小区, 且所述 UE各第 二次在 A小区的驻留时间的平均值、 加权平均值或者求和值小于第八门限值则 判断所述切换模式为模式 4;
根据所述模式 4对所述 UE的 A小区 -B小区的切换执行提前切换策略。
20、 根据权利 16至 18任一项所述的方法, 其特征在于, 所述延迟切换策 略具体为:
减小 A3事件、 A4事件、 A5事件或者 A6事件条件下的小区偏置参数。
21、 根据权利 17或 19所述的方法, 其特征在于, 所述提前切换策略具体 为:
增大 A3事件、 A4事件、 A5事件或者 A6事件条件下的小区偏置参数。
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