WO2013026416A1 - 一种控制参数的调整方法、终端及基站和系统 - Google Patents

一种控制参数的调整方法、终端及基站和系统 Download PDF

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Publication number
WO2013026416A1
WO2013026416A1 PCT/CN2012/080601 CN2012080601W WO2013026416A1 WO 2013026416 A1 WO2013026416 A1 WO 2013026416A1 CN 2012080601 W CN2012080601 W CN 2012080601W WO 2013026416 A1 WO2013026416 A1 WO 2013026416A1
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WO
WIPO (PCT)
Prior art keywords
terminal
target cell
base station
radio link
control parameter
Prior art date
Application number
PCT/CN2012/080601
Other languages
English (en)
French (fr)
Inventor
张涛
王淑坤
蔺波
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 EP12826138.5A priority Critical patent/EP2739088A4/en
Priority to JP2014526380A priority patent/JP5788098B2/ja
Publication of WO2013026416A1 publication Critical patent/WO2013026416A1/zh
Priority to US14/186,633 priority patent/US9253691B2/en
Priority to US14/979,335 priority patent/US20160112928A1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/34Reselection control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00Arrangements for monitoring or testing data switching networks
    • H04L43/06Generation of reports
    • H04L43/065Generation of reports related to network devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0055Transmission or use of information for re-establishing the radio link
    • H04W36/0061Transmission or use of information for re-establishing the radio link of neighbour cell information
    • 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/24Reselection being triggered by specific parameters
    • H04W36/32Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/24Reselection being triggered by specific parameters
    • H04W36/32Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
    • H04W36/324Reselection being triggered by specific parameters by location or mobility data, e.g. speed data by mobility data, e.g. speed data
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0055Transmission or use of information for re-establishing the radio link
    • H04W36/0079Transmission or use of information for re-establishing the radio link in case of hand-off failure or rejection
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/24Reselection being triggered by specific parameters

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method for adjusting control parameters, a terminal, and a base station and system. Background technique
  • the source cell When the terminal is in the connected state, the source cell provides the terminal with the value of the mobility control parameter, and the source cell can switch the terminal to the target cell:
  • the terminal may select to reestablish the cell and reestablish the radio link with the reestablished cell; if the handover succeeds but then the radio link connection between the terminal and the target cell fails, the terminal may also select to reestablish the cell and the reestablished cell. Rebuild the wireless link.
  • the reestablished cell may be the source cell, and may be the target cell, or may be the source cell and other cells except the target cell.
  • the mobility control parameters sent by the source cell may include a handover control parameter, a terminal mobility state control parameter, a target cell size control parameter, and the like.
  • the switching control parameters include a trigger time (Time To Trigger) of the measurement event, an offset amount of the measurement event, a layer-filtering time T, and a layer three filter coefficient K, and the like; the terminal movement state control parameter includes a scaling factor corresponding to the high movement state.
  • the terminal detects its own moving state, and selects a corresponding scaling factor according to its own moving state to scale the switching control parameter, taking Time To Trigger as an example:
  • the UE scales the Time To Trigger as follows:
  • the UE When the UE detects a normal mobile state, the UE does not perform any scaling on the Time To Trigger.
  • the UE After scaling according to the mobile state, the UE determines the size of the target cell, and selects a corresponding cell size scaling coefficient to scale the handover control parameter according to the size of the target cell, or takes Time To Trigger as an example:
  • the UE After scaling according to the mobile state, if the UE determines that the target cell is a large area after scaling according to the high mobile state, the UE scales the Time To Trigger1 as follows:
  • Time To Trigger2 After scaling according to the mobile state, if the UE determines that the target cell is a small cell after scaling according to the medium mobility state, the UE scales Time To Trigger2 as follows:
  • the UE When the UE determines that the target cell is a normal cell, the UE no longer scales the Time To Trigger.
  • first scaling according to the moving state or scaling according to the cell size has no effect on the final zooming effect, and the order can be reversed.
  • the UE controls the current handover process using the scaled handover control parameters.
  • the mobility control parameters in the prior art have a great influence on the mobility performance of the UE.
  • the base station in the prior art needs to pass a large number of field tests. Data collection and statistical analysis to determine the appropriate values of these control parameters in advance, and the mobility control parameters used by the terminal cannot be automatically adjusted. Summary of the invention
  • the embodiment of the invention provides a method for adjusting a control parameter, which can enable the base station to automatically adjust the end.
  • the mobility control parameters used by the terminal achieve a good balance between the link connection failure rate and the ping-pong handover rate of the terminal, and corresponding terminals and base stations are also provided.
  • a method for adjusting control parameters including:
  • the terminal fails to switch from the source cell to the target cell, or the terminal successfully switches from the source cell to the target cell and the radio link established by the terminal and the target cell fails to be connected, the terminal and the reestablished cell Rebuilding the wireless link;
  • the terminal sends a report message to the base station to which the reestablished cell belongs, where the report message carries the mobile speed information of the terminal and/or the size information of the target cell, so that the base station to which the reestablished cell belongs is
  • the mobility speed information of the terminal and/or the size information of the target cell adjust the mobility control parameter, and the adjusted mobility control parameter is sent to the terminal.
  • a method for adjusting control parameters including:
  • the base station to which the re-establishment cell belongs receives the report message sent by the terminal, where the report message carries the mobile speed information of the terminal and/or the size information of the target cell, and receives the identifier or the source cell of the target cell sent by the terminal.
  • the base station to which the reestablished cell belongs sends a radio link failure indication message to the base station to which the target cell belongs or the base station to which the source cell belongs according to the identifier of the target cell or the identifier of the source cell, where the radio link failure indication message is included.
  • Carrying the mobile speed information of the terminal and/or the size information of the target cell, so that the base station to which the target cell belongs or the base station to which the source cell belongs is based on the moving speed information of the terminal and/or the size information of the target cell.
  • the mobility control parameters are adjusted, and the adjusted mobility control parameters are sent to the terminal.
  • a method for adjusting control parameters including:
  • the base station to which the target cell belongs receives the radio link failure indication message sent by the base station to which the reestablished cell belongs, where the radio link failure indication message carries the mobile speed information of the terminal and/or the size information of the target cell;
  • the base station to which the target cell belongs sends a handover report message to the base station to which the source cell belongs, and the handover report message carries the mobile speed information of the terminal and/or the size information of the target cell, so that the source cell belongs to
  • the base station adjusts the mobility control parameter according to the moving speed information of the terminal and/or the size information of the target cell, and sends the adjusted mobility control parameter to the terminal.
  • a method for adjusting control parameters including:
  • the base station to which the source cell belongs receives the radio link failure indication message sent by the base station to which the reestablished cell belongs or the handover report message sent by the base station to which the target cell belongs, and the radio link failure indication message or the handover report message carries the mobile terminal speed information. And/or size information of the target cell;
  • a terminal comprising:
  • a radio link reestablishing unit configured to fail in handover from the source cell to the target cell, or the handover of the terminal from the source cell to the target cell is successful, and the radio link established by the terminal and the target cell is wirelessly connected. When it fails, reestablish the wireless link with the reconstructed cell;
  • a sending unit configured to send a report message to the base station to which the reestablished cell belongs after the radio link reestablishment unit and the reestablished cell reestablish the radio link, where the report message carries the speed information of the terminal and/or the target cell
  • the size information is such that the base station to which the reconstructed cell belongs adjusts the mobility control parameter according to the moving speed information of the terminal and/or the size information of the target cell, and sends the adjusted mobility control parameter to the terminal.
  • a base station comprising:
  • a first receiving unit configured to receive a report message sent by the terminal, where the report message carries the mobile speed information of the terminal and/or the size information of the target cell, and receives the identifier of the target cell sent by the terminal or The identity of the source cell;
  • a first sending unit configured to send, according to the identifier of the target cell or the identifier of the source cell, a radio link failure indication message to the base station to which the target cell belongs or the base station to which the source cell belongs, in the radio link failure indication message Carrying the mobile speed information of the terminal and/or the size information of the target cell, so that the base station to which the target cell belongs or the base station to which the source cell belongs is based on the moving speed information of the terminal and/or the size information of the target cell.
  • the mobility control parameters are adjusted, and the adjusted mobility control parameters are sent to the terminal.
  • a base station comprising:
  • a second receiving unit configured to receive a radio link failure indication message sent by the base station to which the reestablished cell belongs, where the radio link failure indication message carries the mobile speed information of the terminal and/or the size information of the target cell; a second sending unit, configured to send a handover report message to the base station to which the source cell belongs, where the handover report message carries the mobile speed information of the terminal and/or the size information of the target cell, so that the source The base station to which the cell belongs adjusts the mobility control parameter according to the moving speed information of the terminal and/or the size information of the target cell, and sends the adjusted mobility control parameter to the terminal.
  • a base station comprising:
  • a third receiving unit configured to receive a radio link failure indication message sent by the base station to which the reestablished cell belongs, or a handover report message sent by the base station to which the target cell belongs, where the radio link failure indication message or the handover message carries the terminal The moving speed information and/or the size information of the target cell; the third parameter adjusting unit, configured to: according to the radio link failure indication message received by the third receiving unit or the moving speed of the terminal carried in the handover report message Information and/or size information of the target cell, adjusting mobility control parameters;
  • a third sending unit configured to send the mobility control parameter adjusted by the third parameter adjusting unit to the terminal.
  • An adjustment system for controlling parameters comprising: a terminal, a first base station, a second base station, and a third base station;
  • the handover of the terminal from the first base station to the second base station fails, or the handover of the terminal from the first base station to the second base station is successful, and the wireless link established by the terminal and the second base station fails to be connected to the wireless link.
  • the terminal and the third base station reestablish a radio link, and the terminal sends a report message to the third base station, where the report message carries speed information of the terminal and/or size information of the target cell;
  • the third base station Receiving, by the third base station, the report message sent by the terminal, and after receiving the identifier of the target cell or the identifier of the source cell sent by the terminal, sending a radio link according to the identifier of the target cell or the identifier of the source cell a failure indication message is sent to the second base station or the first base station, where the radio link failure indication message carries the mobile speed information of the terminal and/or the size information of the target cell;
  • the second base station After receiving the radio link failure indication message sent by the third base station, the second base station sends a handover report message to the first base station according to the identifier of the source cell, where the handover report message carries the mobile speed information of the terminal and/or Size information of the target cell;
  • the first base station receives a radio link failure indication message sent by the third base station or sends a second base station a handover report message, where the radio link failure indication message or the handover report message carries the mobile speed information of the terminal and/or the size information of the target cell;
  • the first base station adjusts mobility control parameters according to the moving speed information of the terminal and/or the size information of the target cell, and sends the adjusted mobility control parameter to the terminal.
  • the terminal sends a report message to the reestablished cell, where the report message carries the speed information of the terminal and/or the size information of the target cell, and the reestablished cell sends a radio link failure indication message.
  • the source cell receives the radio link failure indication message sent by the reestablishment cell or the handover report message sent by the target cell, where the radio link failure indication message or the handover report message carries the mobile terminal speed information
  • the source cell adjusts the mobility control parameter according to the moving speed information of the terminal and/or the size information of the target cell, and sends the adjusted mobility control parameter to the terminal.
  • the source cell can be based on the terminal moving speed information and/or in the control parameter adjustment method provided by the embodiment of the present invention, after the initial value of the mobility control parameter is sent by the source cell in the prior art.
  • the size information of the target cell automatically adjusts the mobility control parameter to ensure a good balance between the link connection failure rate and the ping-pong handover rate of the terminal.
  • FIG. 1 is a schematic diagram of another embodiment of a method for adjusting control parameters according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of another embodiment of a method for adjusting control parameters according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of an embodiment of a base station according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of another embodiment of a base station according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of another embodiment of a base station according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of another embodiment of a base station according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of an embodiment of a system in an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of another embodiment of a system in an embodiment of the present invention. detailed description
  • the embodiment of the invention provides a method for adjusting a control parameter, which can enable the base station to automatically adjust the end.
  • the mobility control parameters used by the terminal achieve a good balance between the link connection failure rate and the ping-pong handover rate of the terminal.
  • the embodiments of the present invention also provide corresponding terminals, base stations, and systems. The details are described below separately.
  • an embodiment of a method for adjusting control parameters in an embodiment of the present invention includes:
  • the terminal sends a report message to the reestablished cell, where the report message carries speed information of the terminal and/or size information of the target cell.
  • the source cell sends an initial value of the mobility control parameter to the terminal, where the mobility control parameter includes a handover control parameter, a terminal mobility state control parameter, and a target cell size control parameter.
  • the handover control parameters include parameters related to the handover procedure
  • the terminal mobility state control parameters include parameters related to the terminal mobility state.
  • the switching control parameters include a trigger time (Time To Trigger ) of the measurement event, an offset amount of the measurement event, a layer-filtering time T, and a layer three filter coefficient K, and the like; the terminal movement state control parameter includes a scaling factor corresponding to the high movement state.
  • the target cell size control parameter includes a scaling factor sf-Large corresponding to the large area, a scaling factor sf-Small corresponding to the small cell, and the like.
  • the initial value of the mobility control parameter is the specific value of the above parameter.
  • the terminal detects its own moving state, and selects a corresponding scaling factor according to its own moving state to scale the switching control parameter, taking Time To Trigger as an example:
  • the UE scales the Time To Trigger as follows:
  • the UE After scaling according to the mobile state, the UE determines the size of the target cell, and selects a corresponding cell size scaling coefficient according to the size of the target cell to scale the Time To Trigger:
  • the UE After scaling according to the mobile state, if the UE determines that the target cell is a small cell after scaling according to the high mobile state, the UE scales the Time To Trigger1 as follows:
  • the other handover control parameters may also be scaled according to the foregoing manner.
  • the UE successfully switches to the target cell according to the scaled handover control parameter, and then the terminal and the target cell radio link fail.
  • the terminal After the terminal establishes a radio link with the reestablished cell, the terminal sends a report message to the reestablished cell, where the report message carries the mobile speed information of the terminal and/or the size information of the target cell.
  • the speed information may be mobile state information of the terminal, and the mobile state information of the terminal includes the UE being in a high mobility state, a medium mobility state, or a normal mobility state.
  • the division of the mobile state may be based on the number of handovers of the UE in a specific time. For example, if the UE switches more than 10 times in a specific time, the UE is in a high mobility state, and if the handover is less than 10 times in a specific time but more than 5 times, the UE is in the state. In the medium mobility state, if the handover is less than 5 times in a certain time, the UE is in a normal mobile state.
  • the principle of dividing the mobility state of the UE is only exemplified herein, and the value of the specific boundary may be different.
  • the size information of the target cell may be that the target cell is one of a large area, a middle cell, a small cell or a small cell, and the cell size may be based on the power of the cell base station, for example, the cell base station power is greater than 10 watts. In the cell, more than 5 watts is less than 10 watts for the middle cell, more than 3 watts is less than 5 watts for the small cell, and less than 3 watts for the small cell. Of course, here is only a description of the division principle of the cell size, and the value of the specific boundary line may be different. .
  • the UE may obtain the size information of the target cell in multiple manners.
  • the target cell may send its own power or size information by using system broadcast or dedicated signaling, and the UE receives system broadcast or dedicated signaling of the target cell.
  • the dedicated signaling may be directly sent by the target cell to the UE, or may be forwarded to the UE via the source cell, acquiring the power of the target cell, inferring the size information of the target cell, or directly acquiring the target Cell size information, and so on.
  • the report message further carries an event type flag and/or a mobility control parameter, where the mobility control parameter includes one or a combination of a handover control parameter, a terminal mobility state control parameter, and a target cell size control parameter,
  • the event type flag indicates that the event type is a radio link failure.
  • the upper >3 ⁇ 4 message further carries an identifier of the target cell and the source cell.
  • the base station to which the reestablished cell belongs receives the report message sent by the terminal.
  • the upper >3 ⁇ 4 message carries speed information of the terminal and/or size information of the target cell.
  • the base station to which the reestablished cell belongs sends a radio link failure indication message to the target cell, where the radio link failure indication message carries the mobile speed information of the terminal and/or the size information of the target cell.
  • the reestablished cell learns that the terminal fails to handover at the target cell according to the event type identifier and the identifier of the target cell, and sends a radio link failure indication message to the target cell to notify the target cell, where the terminal After the target cell handover fails, the radio link is reestablished in the reestablished cell, and the radio link failure indication message carries the mobile speed information of the terminal and/or the size information of the target cell.
  • the radio link failure indication message further carries an identifier of the source cell.
  • the base station to which the target cell belongs receives the radio link failure indication message sent by the base station to which the reestablished cell belongs.
  • the base station to which the target cell belongs receives the radio link failure indication message sent by the base station to which the reestablished cell belongs, where the radio link failure indication message carries the mobile speed information of the terminal and/or the size information of the target cell,
  • the radio link failure indication message further carries a mobility control parameter, where the mobility control parameter includes one or a combination of a handover control parameter, a terminal mobility state control parameter, and a target cell size control parameter.
  • the base station to which the target cell belongs sends a handover report message to the source cell, where the handover report message carries the mobile speed information of the terminal and/or the size information of the target cell.
  • the target cell learns that the terminal is a radio link that fails after successfully switching from the source cell according to the event type identifier and the identifier of the source cell, and sends a handover report message to the source cell, where the handover message is sent. And carrying the mobility speed information of the terminal and/or the size information of the target cell, where the handover report message further carries a mobility control parameter, where the mobility control parameter includes a handover control parameter, and the terminal mobility state control parameter At least one of the target cell size control parameters.
  • the base station to which the source cell belongs receives the handover report message sent by the target cell, where the handover report message carries the mobile speed information of the terminal and/or the size information of the target cell.
  • the source cell learns that the radio link fails after the terminal successfully switches from the source cell to the target cell according to the received handover report.
  • the base station to which the source cell belongs adjusts the mobility control parameter according to the moving speed information of the terminal and/or the size information of the target cell.
  • the base station to which the source cell belongs adjusts the mobility control parameter according to the moving speed information of the terminal and/or the size information of the target cell carried in the handover report message, for example, according to the mobile
  • the speed information is learned that the terminal is in a high mobility state, and the target cell is determined to be a small cell according to the size information of the target cell, and the base station to which the source cell belongs adjusts the mobility control parameter.
  • the source cell may also adjust other mobility control parameters according to the moving speed information of the terminal and/or the size information of the target cell to ensure the terminal.
  • the link connection failure rate and the switching ping-pong rate are well balanced.
  • the base station to which the source cell belongs sends the adjusted mobility control parameter to the terminal. After the source cell adjusts the mobility control parameter, the adjusted mobility control parameter is sent to the terminal to ensure that the terminal performs cell handover according to the adjusted mobility control parameter, so as to ensure the link connection failure rate of the terminal and Switching the ping-pong rate to a better balance.
  • the terminal sends a report message to the re-established cell, where the report message carries the speed information of the terminal and/or the size information of the target cell, and the re-established cell sends a radio link failure indication message.
  • the source cell receives the handover report message sent by the target cell, where the handover report message carries the mobile speed information of the terminal and/or the size information of the target cell, and the source cell according to the moving speed information of the terminal and/or Or the size information of the target cell adjusts the mobility control parameter, and sends the adjusted mobility control parameter to the terminal.
  • the source cell can be based on the terminal moving speed information and/or in the control parameter adjustment method provided by the embodiment of the present invention, after the initial value of the mobility control parameter is sent by the source cell in the prior art.
  • the size information of the target cell automatically adjusts the mobility control parameter to ensure a good balance between the link connection failure rate and the ping-pong handover rate of the terminal.
  • the reestablished cell may be the source cell or the target cell.
  • the step 103 106 may be omitted, and after the base station to which the source cell belongs receives the report message, Performing parameter adjustment according to the information carried in the report message; when the reconstructed cell is the target cell, steps 103 and 104 may be omitted, and the base station to which the target cell belongs is received. And sending the information carried in the report message to the source cell, and the base station to which the source cell belongs performs parameter adjustment according to the information carried in the report message.
  • the source cell performs parameter adjustment after receiving the report message
  • the threshold may be set.
  • the parameter adjustment is performed, and the foregoing embodiment is configured.
  • Setting a threshold when the source cell receives a handover report message sent by the target cell that exceeds a set threshold: after step 106, further comprising: classifying the terminal moving speed information and/or the target cell size information; determining the most occurrences The terminal moving speed information and/or the target cell size information is modified.
  • Step 107 is modified to: adjust the mobility control parameter according to the terminal moving speed information and/or the target cell size information that is the most frequently occurring.
  • the specific process may be described as: classifying the terminal moving speed information carried in the radio link failure indication message or the handover report message, and determining that the radio link corresponding to the category of the classified terminal moving speed information fails Determining the number of the message or the handover report message, and determining the category of the terminal mobile speed information corresponding to the maximum number of radio link failure indication messages or handover report messages, according to the maximum number of radio link failure indication messages or handover report messages Adjusting the mobility control parameter according to the category of the terminal moving speed information, and transmitting the adjusted mobility control parameter to the terminal; or
  • the class adjusts the mobility control parameter, and sends the adjusted mobility control parameter to the terminal.
  • the threshold is set according to the number of times the message is received. In fact, the mobile terminal may be moved to the handover report message after receiving the message, that is, after step 106.
  • Step 107 is modified to be the category or target of the terminal movement speed information corresponding to the maximum number of radio link failure indication messages or handover report messages.
  • the category or combination category of the size information of the cell, and the mobility control parameters are adjusted.
  • the process of adjusting the mobility control parameter by the source cell is specifically described in the foregoing embodiment.
  • the reconstructed cell and the target cell may also perform parameter adjustment according to the moving speed information of the terminal and/or the size information of the target cell, or Setting a setting threshold, when the received message reaches the setting threshold, adjusting the mobility control parameter according to the terminal moving speed information and/or the target cell size information that is the most frequently occurring, and sending the adjusted mobility control parameter Give the terminal.
  • another embodiment of the method for adjusting control parameters in the embodiment of the present invention includes:
  • the terminal sends a report message to the reestablished cell, where the report message carries speed information of the terminal and/or size information of the target cell.
  • the terminal After the handover of the terminal from the source cell to the target cell fails, the terminal selects a reestablished cell, and after establishing a radio link with the reestablished cell, sends a report message to the reestablished cell, where the reported message carries the moving speed of the terminal. Information and/or size information of the target cell.
  • the speed information may be the mobile state information of the terminal, and the mobile state information of the terminal is one of the high mobility state, the medium mobility state, or the normal mobility state of the UE.
  • the division of the mobile state may be based on the number of handovers of the UE in a specific time. If the UE switches more than 10 times in a specific time, the UE is in a high mobility state, and if the handover is less than 10 times in a specific time but more than 5 times, the UE is in the state. In the medium mobility state, if the handover is less than 5 times in a certain time, the UE is in a normal mobile state.
  • the principle of dividing the mobility state of the UE is only exemplified herein, and the value of the specific boundary may be different.
  • the size information of the target cell is that the target cell is one of a large area, a medium cell, a small cell or a small cell, and the cell size may be based on the power of the cell base station, for example, the cell base station power is greater than 10 watts, and the size is larger than 5 watts is less than 10 watts for the middle cell, more than 3 watts is less than 5 watts for the small cell, and 3 watts for the small cell, of course, here is only an example to illustrate the division principle of the cell, the specific boundary line Values may vary.
  • the UE may obtain the size information of the target cell in multiple manners.
  • the target cell may send its own power or size information by using system broadcast or dedicated signaling, and the UE receives system broadcast or dedicated signaling of the target cell.
  • the dedicated signaling may be directly sent to the UE by the target cell, or may be forwarded to the UE by the source cell
  • the power of the target cell is obtained, the size information of the target cell is inferred, or the target is directly acquired. Cell size information, and so on.
  • the report message further carries an event type flag and/or a mobility control parameter, where the mobility control parameter includes one or a combination of a handover control parameter, a terminal mobility state control parameter, and a target cell size control parameter,
  • the event type flag indicates that the event type is a cell handover failure.
  • the base station to which the reestablished cell belongs receives the report message sent by the terminal.
  • the upper >3 ⁇ 4 message carries speed information of the terminal and/or size information of the target cell.
  • the base station to which the reestablished cell belongs sends a radio link failure indication message to the source cell, where the radio link failure indication message carries the mobile speed information of the terminal and/or the size information of the target cell.
  • the base station to which the reestablished cell belongs sends a radio link failure indication message to the base station to which the source cell belongs, and the radio link failure indication message carries the mobile speed information of the terminal and/or the size information of the target cell.
  • the radio link failure indication message further carries an event type flag. In this embodiment, the event type flag is a handover failure.
  • the base station to which the source cell belongs receives the radio link failure indication message sent by the reestablishing cell, where the radio link failure indication message carries the mobile speed information of the terminal and/or the size information of the target cell.
  • the base station to which the source cell belongs adjusts the mobility control parameter according to the moving speed information of the terminal and/or the size information of the target cell.
  • the radio link failure indication message further carries an event type flag.
  • the event type flag is a handover failure, and the source cell learns that the terminal switches according to the initial value of the mobility control parameter according to the event type flag, and the handover fails.
  • the mobile link failure indication message carries the mobile speed information of the terminal and/or the size information of the target cell to adjust the mobility control parameter, so as to ensure a good balance between the link connection failure rate and the switching ping rate of the terminal. 206.
  • the base station to which the source cell belongs sends the adjusted mobility control parameter to the terminal.
  • the adjusted mobility control parameter is sent to the terminal to ensure that the terminal performs cell handover according to the adjusted mobility control parameter to ensure the link connection of the terminal.
  • the failure rate and switching ping-pong rate are well balanced.
  • the terminal sends a report message to the re-established cell, where the report message carries the speed information of the terminal and/or the size information of the target cell, and the re-established cell sends a radio link failure indication message.
  • the source cell receives the radio link failure indication message sent by the reestablishment cell, where the radio link failure indication message carries the mobile speed information of the terminal and/or the size information of the target cell, where the source cell is according to the terminal
  • the moving speed information and/or the size information of the target cell adjusts the mobility control parameter, and sends the adjusted mobility control parameter to the terminal.
  • the source cell can be based on the terminal moving speed information and/or in the control parameter adjustment method provided by the embodiment of the present invention, after the initial value of the mobility control parameter is sent by the source cell in the prior art.
  • the size information of the target cell automatically adjusts the mobility control parameter to ensure a good balance between the link connection failure rate and the ping-pong handover rate of the terminal.
  • the reconstructed cell may be a source cell or a target cell.
  • the steps 203 and 204 may be omitted.
  • the source cell After receiving the message, the source cell performs parameter adjustment according to the information carried in the report message.
  • the source cell performs parameter adjustment after receiving the report message, and may actually set a threshold.
  • parameter adjustment is performed, and the foregoing embodiment is configured.
  • Threshold when the source cell receives the radio link failure indication message sent by the reestablishment cell exceeding a set threshold: after step 204, further comprising: classifying the terminal movement speed information and/or the target cell size information; determining The terminal moving speed information and/or the target cell size information that is the most frequently generated; Step 205 is modified to: adjust the mobility control parameter according to the terminal moving speed information and/or the target cell size information that is the most frequently occurring.
  • the setting threshold is set according to the number of times the message is received. In fact, after each message is received, that is, after the step 204, the mobile terminal is moved in the handover report message.
  • the speed information and/or the size information of the target cell are classified, and the category or combination type of the category of the terminal moving speed information or the size information of the target cell corresponding to the determined maximum number of radio link failure indication messages or handover report messages is determined; Wireless chain corresponding to any category
  • the step 205 is modified to the category of the terminal movement speed information or the size information of the target cell according to the maximum number of radio link failure indication messages or handover report messages or Combine categories and adjust mobility control parameters.
  • the foregoing embodiment specifically describes a process in which the source cell adjusts the mobility control parameter.
  • the reconstructed cell may also perform parameter adjustment according to the moving speed information of the terminal and/or the size information of the target cell, or may set a threshold.
  • the mobility control parameter is adjusted according to the terminal moving speed information and/or the target cell size information with the most occurrences, and the adjusted mobility control parameter is sent to the terminal.
  • the base station to which the reestablished cell belongs sends the mobile speed information of the terminal and/or the size information of the target cell to at least one of the base station to which the source cell belongs and the base station to which the target cell belongs, so that the rebuilt cell At least one of the associated base station, the base station to which the source cell belongs, and the base station to which the target cell belongs adjusts the mobility control parameter according to the moving speed information of the terminal and/or the size information of the target cell.
  • the terminal 30 in the embodiment of the present invention includes: a radio link reconstruction unit 301, an acquisition unit 302, and a transmission unit 302.
  • the radio link reestablishing unit 301 is configured to fail in the handover from the source cell to the target cell, or the handover of the terminal from the source cell to the target cell is successful, and the radio link established by the terminal and the target cell is wireless. When the link connection fails, the wireless link is reestablished with the reconstructed cell;
  • the acquiring unit 302 is configured to acquire the power of the target cell by using a system broadcast or a dedicated signaling of the target cell, acquire the size information of the target cell according to the power of the target cell, or acquire the target The size information of the target cell carried by the system broadcast or dedicated signaling of the cell.
  • the sending unit 303 is configured to send a report message to the base station to which the reestablished cell belongs after the radio link reestablishment unit 301 and the reestablished cell reestablish the radio link, where the report message carries the speed information of the terminal and/or And the size information of the target cell, so that the base station to which the reconstructed cell belongs adjusts the mobility control parameter according to the moving speed information of the terminal and/or the size information of the target cell, and sends the adjusted mobility control parameter to The terminal.
  • the radio link reestablishing unit 301 of the terminal 30 fails to perform handover from the source cell to the target cell, or the handover of the terminal from the source cell to the target cell is successful, and the terminal and the terminal
  • the radio link established by the target cell fails to be connected to the radio link
  • the radio link is reconstructed with the reestablished cell
  • the acquiring unit 302 acquires the size information of the target cell
  • the sending unit 303 reestablishes the radio chain in the radio link reestablishing unit 301 and the rebuilt cell.
  • an embodiment of a base station in this embodiment of the present invention includes: a first receiving unit 401, and a first sending unit 402 and a first parameter adjusting unit 403.
  • the first receiving unit 401 is configured to receive a report message sent by the terminal, where the report message carries the mobile speed information of the terminal and/or the size information of the target cell, and receives the target cell sent by the terminal. Identification or identity of the source cell;
  • the first sending unit 402 is configured to send, according to the identifier of the target cell or the identifier of the source cell, a radio link failure indication message to the base station to which the target cell belongs or the base station to which the source cell belongs, where the radio link fails.
  • the indication message carries the mobile speed information of the terminal and/or the size information of the target cell, so that the base station to which the source cell belongs adjusts the mobility control parameter according to the moving speed information of the terminal and/or the size information of the target cell. And transmitting the adjusted mobility control parameters to the terminal.
  • the first parameter adjustment unit 403 is configured to adjust mobility control parameters according to the moving speed information of the terminal and/or the size information of the target cell received by the first receiving unit 401;
  • the first sending unit 402 is further configured to send the mobility control parameter adjusted by the first parameter adjusting unit 403 to the terminal.
  • the first receiving unit 401 receives the report message sent by the terminal, where the upper message carries the mobile speed information of the terminal and/or the size information of the target cell, and receives the terminal.
  • the first sending unit 402 is configured to send a radio link failure indication message to the base station or source to which the target cell belongs according to the identifier of the target cell or the identifier of the source cell.
  • a base station to which the cell belongs such that the base station to which the source cell belongs adjusts mobility control according to the moving speed information of the terminal and/or the size information of the target cell. Parameters, and the adjusted mobility control parameters are sent to the terminal. Ensure that the wireless link connection failure rate and the ping-pong switching rate of the terminal reach a good balance.
  • the first parameter adjustment unit 403 may further adjust the mobility control parameter according to the moving speed information of the terminal and/or the size information of the target cell received by the first receiving unit 401;
  • the first sending unit 402 sends the mobility control parameter adjusted by the first parameter adjustment unit to the terminal.
  • another embodiment of the base station in the embodiment of the present invention includes: a second receiving unit 501, a second sending unit 502, and a second parameter adjusting unit 503.
  • the second receiving unit 501 is configured to receive a radio link failure indication message sent by the base station to which the reestablished cell belongs, where the radio link failure indication message carries the mobile speed information of the terminal and/or the size information of the target cell. ;
  • the second sending unit 502 is configured to send a handover report message to the base station to which the source cell belongs, where the handover report message carries the mobile speed information of the terminal and/or the size information of the target cell, so that the The base station to which the source cell belongs adjusts the mobility control parameter according to the moving speed information of the terminal and/or the size information of the target cell, and sends the adjusted mobility control parameter to the terminal.
  • the second parameter adjustment unit 503 is configured to adjust the mobility control parameter according to the moving speed information of the terminal and/or the size information of the target cell received by the second receiving unit 501;
  • the second sending unit is further configured to send the second parameter adjustment unit 503 to the terminal by using the adjusted mobility control parameter.
  • the second receiving unit 501 receives a radio link failure indication message sent by the base station to which the reestablished cell belongs, where the radio link failure indication message carries the mobile speed information of the terminal and/or the target cell.
  • the size information the second sending unit 502 sends a handover report message to the base station to which the source cell belongs, and the handover report message carries the mobile speed information of the terminal and/or the size information of the target cell, so that the The base station to which the source cell belongs adjusts the mobility control parameter according to the moving speed information of the terminal and/or the size information of the target cell, and sends the adjusted mobility control parameter to the terminal. Ensure that the wireless link failure rate of the terminal and the ping-pong switching rate are well balanced.
  • the second parameter adjustment unit 503 may further receive according to the second The mobility control information of the terminal and/or the size information of the target cell received by the unit 501 adjusts the mobility control parameter; the second sending unit 502 sends the mobility control parameter adjusted by the second parameter adjustment unit to The terminal.
  • a base station in this embodiment of the present invention includes: a third receiving unit 601, a third parameter adjusting unit 602, and a third sending unit 603.
  • the first receiving unit 601 is configured to receive a radio link failure indication message sent by the base station to which the reestablished cell belongs, or a handover report message sent by the base station to which the target cell belongs, the radio link failure indication message or the handover message Carrying mobile terminal speed information and/or size information of the target cell;
  • the third parameter adjustment unit 602 is configured to: according to the radio link failure indication message or the handover report message received by the first receiving unit 601, the mobile speed information of the terminal and/or the size information of the target cell , adjusting the mobility control parameters;
  • the third sending unit 603 is configured to send the mobility control parameter adjusted by the parameter adjusting unit 602 to the terminal.
  • the third receiving unit 601 of the base station receives the radio link failure indication message sent by the base station to which the reestablished cell belongs or the handover report message sent by the base station to which the target cell belongs, where the message carries the moving speed of the terminal.
  • the information and/or the size information of the target cell the parameter adjustment unit 402 adjusts the mobility according to the moving speed information of the terminal and/or the size information of the target cell carried in the message received by the third receiving unit 601.
  • the third transmission unit 603 sends the adjusted mobility control parameter to the terminal.
  • the base station adjusts the mobility control parameter according to the moving speed information of the terminal and/or the size information of the target cell, so as to ensure that the wireless link connection failure rate and the ping-pong switching rate of the terminal reach a good balance.
  • another embodiment of the base station in the embodiment of the present invention further includes: an information classification unit 604, a determining unit 605, the third parameter adjusting unit 602, and the third sending unit 603.
  • the information classification unit 604 is configured to classify the terminal mobile speed information carried in the radio link failure indication message or the handover report message; or, to use the radio link failure indication message or switch ⁇ Classifying the size information of the target cell carried in the advertisement message;
  • the determining unit 605 is configured to move a speed letter to the terminal at the information classification unit 604. After the information is classified, the number of the radio link failure indication message or the handover report message corresponding to the category of the terminal movement speed information after the classification is determined, and the number of the radio link failure indication message or the handover report message corresponding to the maximum number is determined.
  • the information classifying unit 604 classifies the size information of the target cell, determining a wireless link corresponding to the type of the size information of the classified target cell Determining the number of the failure indication message or the handover report message, and determining the category of the maximum number of radio link failure indication messages or the size information of the target cell corresponding to the handover report message; or, determining the radio link failure indication message or And determining, by the switching report message, a combination type of the size information of the target cell and the category of the terminal moving speed information, determining a number of radio link failure indication messages or handover report messages corresponding to the combination category, and Determine the maximum number of wireless link failure indication messages or handover reports Message combination corresponding category;
  • the parameter adjustment unit 602 is further configured to: after the determining unit 605 determines the category of the maximum number of radio link failure indication messages or the terminal movement speed information corresponding to the handover report message, according to the maximum number of radio link failure indications
  • the class of the terminal moving speed information corresponding to the message or the switching report message adjusts the mobility control parameter; or is further used to determine, in the determining unit 605, the maximum number of radio link failure indication messages or the size of the target cell corresponding to the handover report message.
  • the category of the information, the mobility control parameter is adjusted according to the category of the size information of the target cell corresponding to the most-numbered radio link failure indication message or the handover report message; or, the determining unit 605 determines the maximum number of radios. a combination type corresponding to the link failure indication message or the handover report message, and adjusting the mobility control parameter according to the combination category corresponding to the maximum number of radio link failure indication messages or the handover report message;
  • the first sending unit 603 is further configured to send the mobility control parameter adjusted by the parameter adjusting unit 602 to the terminal.
  • the threshold is set on the base station side.
  • the information classification unit 604 sets the terminal moving speed information and/or the target cell size information.
  • the determining unit 605 determines the terminal moving speed information and/or the target cell size information that has the most occurrences, and the parameter adjusting unit 602 adjusts according to the terminal moving speed information and/or the target cell size information that is the most frequently occurring.
  • the mobility control parameter, the third transmitting unit 603 sends the adjusted mobility control parameter to the terminal.
  • the base station based on terminal or other
  • the base station transmits the mobile speed information of the terminal and/or the size information of the target cell, and adjusts the mobility control parameter to ensure that the link connection failure rate and the ping-pong switching rate of the terminal reach a good balance.
  • the base station in the embodiment corresponding to FIG. 4 and FIG. 5 above may also include an information classification unit and a determining unit, and the specific execution process is the same as the base station corresponding to FIG. 7.
  • an embodiment of a control parameter adjustment system in an embodiment of the present invention includes: a terminal 30, a first base station 70, a second level station 80, and a third base station 90;
  • the terminal 30 and the third base station 90 are reconstructed.
  • the terminal sends a report message to the third base station 90, where the report message carries speed information of the terminal and/or size information of the target cell;
  • the third base station 90 After receiving the report message sent by the terminal 30, the third base station 90, after receiving the identifier of the target cell or the identifier of the source cell sent by the terminal, sends the identifier according to the target cell or the identifier of the source cell.
  • a radio link failure indication message is sent to the second base station 80, where the radio link failure indication message carries the mobile speed information of the terminal and/or the size information of the target cell;
  • the second base station 80 After receiving the radio link failure indication message sent by the third base station 90, the second base station 80 sends a handover report message to the first base station 70 according to the identifier of the source cell, where the handover report message carries the mobile speed information of the terminal. And/or size information of the target cell;
  • the first base station 70 receives the handover report message sent by the second base station 80, and the mobility speed information of the terminal and/or the size information of the target cell carried in the handover report message;
  • the first base station 70 adjusts the mobility control parameter according to the moving speed information of the terminal and/or the size information of the target cell, and sends the adjusted mobility control parameter to the terminal 30.
  • the terminal sends a report message to the third base station, where the report message carries the speed information of the terminal and/or the size information of the target cell, and the third base station sends a radio link failure indication message to the third
  • the second base station sends a handover report message to the first base station, where the handover report message carries the mobile speed information of the terminal and/or the size information of the target cell, and the first base station moves according to the terminal.
  • the speed information and/or the size information of the target cell adjusts the mobility control parameter, and sends the adjusted mobility control parameter to the terminal.
  • the base station adjusts according to the moving speed information of the terminal and/or the size information of the target cell carried in the message sent by the other base station.
  • the mobility control parameter ensures a good balance between the wireless link connection failure rate and the ping-pong handover rate of the terminal.
  • the second base station and the third base station may also perform parameter adjustment, and send the adjusted mobility control parameters to the terminal.
  • another embodiment of the control parameter adjustment system in the embodiment of the present invention includes: a terminal 30, a first base station 70, a second level station 80, and a third base station 90;
  • the handover of the terminal 30 from the first base station 70 to the second base station 80 fails, the terminal 30 and the third base station 90 reestablish a radio link, and the terminal sends a report message to the third base station 90, and the report message is sent.
  • the third base station 90 After receiving the report message sent by the terminal 30, the third base station 90 sends a radio link failure indication message to the first base station 70 according to the identifier of the source cell, where the radio link failure indication message carries the mobile terminal Speed information and/or size information of the target cell;
  • the first base station 70 receives the radio link failure indication message sent by the third base station 90, where the radio link failure indication message carries the mobile speed information of the terminal and/or the size information of the target cell; the first base station 70 And adjusting the mobility control parameter according to the moving speed information of the terminal and/or the size information of the target cell, and transmitting the adjusted mobility control parameter to the terminal 30.
  • the terminal sends a report message to the third base station, where the report message carries the speed information of the terminal and/or the size information of the target cell
  • the third base station sends a radio link failure indication message to the third a base station, where the radio link failure indication message carries the mobile speed information of the terminal and/or the size information of the target cell
  • the first base station is configured according to the moving speed information of the terminal and/or the target cell
  • the size information adjusts the mobility control parameter, and sends the adjusted mobility control parameter to the terminal.
  • the base station adjusts the mobility control parameter according to the moving speed information of the terminal and/or the size information of the target cell carried in the message sent by the other base station, so as to ensure a good balance between the wireless link connection failure rate and the ping-pong switching rate of the terminal.
  • the third base station may also perform parameter adjustment, and send the adjusted mobility control parameter to the terminal.
  • the program can be stored in a computer readable storage medium.
  • the storage medium can include: ROM, RAM, disk or CD, etc.

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Abstract

本发明公开了一种控制参数的调整方法。当终端从源小区到目标小区切换失败,或,所述终端从源小区到目标小区切换成功并且所述终端与目标小区建立的无线链路发生无线链路连接失败时,所述终端与重建小区重建无线链路;所述终端发送上报消息给所述重建小区所属的基站,所述上报消息中携带所述终端的移动速度信息和/或所述目标小区的大小信息,以使得所述重建小区所属的基站根据所述终端的移动速度信息和/或目标小区的大小信息调整移动性控制参数,并将调整后的移动性控制参数发送给所述终端。本发明实施例还提供相应的终端、基站及系统。本发明实施例提供的控制参数调整方法可以保证终端的链路连接失败率和乒乓切换率达到较好的平衡。

Description

一种控制参数的调整方法、 终端及基站和系统
本申请要求了于 2011年 8月 25日提交中国专利局,申请号为 201110246807.X、 发明名称为 "一种控制参数的调整方法、 终端及基站和系统" 的中国申请的 优先权, 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及通信技术领域, 具体涉及一种控制参数的调整方法、 终端及 基站和系统。 背景技术
当终端处于连接状态, 源小区为终端提供移动性控制参数的取值, 所述 源小区可以将终端切换给目标小区:
如果切换失败, 终端可以选择重建小区并与所述重建小区重建无线链路; 如果切换成功但随后终端与目标小区发生了无线链路连接失败, 则终端 也可以选择重建小区并与所述重建小区重建无线链路。
上述两种情况下所述重建小区可以为所述源小区, 可以为所述目标小区, 也可以为所述源小区和所述目标小区之外的其它小区。
终端与所述源小区建立连接后, 所述源小区发送的移动性控制参数可以 包括切换控制参数, 终端移动状态控制参数和目标小区大小控制参数等等。 其中切换控制参数包括测量事件的触发时间 (Time To Trigger ), 测量事件的 偏置量、 层一滤波时间 T和层三滤波系数 K等等; 终端移动状态控制参数包 括高移动状态对应的缩放系数 sf-High 和中移动状态对应的缩放系数 sf-Medium等等; 目标小区大小控制参数包括大小区对应的缩放系数 sf-Large 和小小区对应的缩放系数 sf-Small等等。
终端探测自身移动状态, 并根据自身移动状态选取对应的缩放系数对切 换控制参数进行缩放, 以 Time To Trigger为例:
当 UE探测到自身处于高移动状态的时候, UE对切换控制参数进行如下 缩放, Time To Trigger 1 = = Time To Trigger x sf-High
当 UE探测到自身处于中移动状态的时候, UE对 Time To Trigger进行如 下缩放:
Time To Trigger2 = = Time To Trigger x sf-Medium
当 UE探测到正常移动状态的时候, UE不对 Time To Trigger进行任何缩 放。
当然此处只是以 Time To Trigger为例进行说明, 其他切换控制参数也可 以按照上述方式进行缩放。
在按照移动状态进行缩放后, UE判断目标小区的大小, 并根据目标小区 的大小选取对应的小区大小缩放系数对切换控制参数进行缩放, 还是以 Time To Trigger为例:
在按照移动状态进行缩放后, 如按照高移动状态进行缩放后, UE判断出 目标小区为大小区时, UE对 Time To Triggerl进行如下缩放:
Time To Trigger3 = = Time To Triggerl x sf-Large
在按照移动状态进行缩放后, 如按照中移动状态进行缩放后, UE 判断 出目标小区为小小区的时候, UE对 Time To Trigger2进行如下缩放:
Time To Trigger4 = = Time To Trigger2 x sf-Small
当 UE判断出目标小区为正常小区的时候, UE不再对 Time To Trigger进 行任何缩放。
当然, 先按照移动状态进行缩放还是先按照小区大小进行缩放对最终的 缩放效果没有影响, 可以颠倒顺序。
UE使用缩放后的切换控制参数控制当前的切换过程。
现有技术中的移动性控制参数对 UE的移动性能有很大影响,为了达到 UE 链路连接失败率和 UE乒乓切换率之间的较好平衡, 现有技术中基站需要通过 大量的外场测试, 数据收集和统计分析来事先确定这些控制参数的合适取值, 无法自动调整终端使用的移动性控制参数。 发明内容
本发明实施例提供一种控制参数的调整方法, 可以使得基站自动调整终 端使用的移动性控制参数, 使终端的链路连接失败率和乒乓切换率达到较好 的平衡, 还提供了相应的终端和基站。
一种控制参数的调整方法, 包括:
当终端从源小区到目标小区切换失败, 或, 所述终端从源小区到目标小 区切换成功并且所述终端与目标小区建立的无线链路发生无线链路连接失败 时, 所述终端与重建小区重建无线链路;
所述终端发送上报消息给所述重建小区所属的基站, 所述上报消息中携 带所述终端的移动速度信息和 /或所述目标小区的大小信息, 以使得所述重建 小区所属的基站根据所述终端的移动速度信息和 /或目标小区的大小信息调整 移动性控制参数, 并将调整后的移动性控制参数发送给所述终端。
一种控制参数的调整方法, 包括:
重建小区所属的基站接收终端发送的上报消息, 所述上报消息中携带所 述终端的移动速度信息和 /或目标小区的大小信息, 并且接收所述终端发送的 所述目标小区的标识或源小区的标识;
所述重建小区所属的基站根据所述目标小区的标识或源小区的标识发送 无线链路失败指示消息给所述目标小区所属的基站或源小区所属的基站, 所 述无线链路失败指示消息中携带所述终端的移动速度信息和 /或所述目标小区 的大小信息, 以使得所述目标小区所属的基站或源小区所属的基站根据所述 终端的移动速度信息和 /或目标小区的大小信息调整移动性控制参数, 并将调 整后的移动性控制参数发送给所述终端。
一种控制参数的调整方法, 包括:
目标小区所属的基站接收重建小区所属的基站发送的无线链路失败指示 消息, 所述无线链路失败指示消息中携带终端的移动速度信息和 /或所述目标 小区的大小信息;
所述目标小区所属的基站发送切换报告消息给源小区所属的基站, 所述 切换报告消息中携带所述终端的移动速度信息和 /或所述目标小区的大小信 息, 以使得所述源小区所属的基站根据所述终端的移动速度信息和 /或目标小 区的大小信息调整移动性控制参数, 并将调整后的移动性控制参数发送给所 述终端。 一种控制参数的调整方法, 包括:
源小区所属的基站接收重建小区所属的基站发送的无线链路失败指示消 息或目标小区所属的基站发送的切换报告消息, 所述无线链路失败指示消息 或切换报告消息中携带终端的移动速度信息和 /或目标小区的大小信息;
根据所述终端的移动速度信息和 /或所述目标小区的大小信息调整移动性 控制参数, 并发送所述调整后的移动性控制参数给终端。
一种终端, 包括:
无线链路重建单元, 用于在从源小区到目标小区的切换失败, 或, 所述 终端从源小区到目标小区的切换成功并且所述终端与目标小区建立的无线链 路发生无线链路连接失败时, 与重建小区重建无线链路;
发送单元, 用于在无线链路重建单元与重建小区重建无线链路后发送上 报消息给所述重建小区所属的基站, 所述上报消息中携带所述终端的速度信 息和 /或所述目标小区的大小信息, 以使得所述重建小区所属的基站根据所述 终端的移动速度信息和 /或目标小区的大小信息调整移动性控制参数, 并将调 整后的移动性控制参数发送给所述终端。
一种基站, 包括:
第一接收单元, 用于接收终端发送的上报消息, 所述上报消息中携带所 述终端的移动速度信息和 /或目标小区的大小信息, 并且接收所述终端发送的 所述目标小区的标识或源小区的标识;
第一发送单元, 用于根据所述目标小区的标识或源小区的标识发送无线 链路失败指示消息给所述目标小区所属的基站或源小区所属的基站, 所述无 线链路失败指示消息中携带所述终端的移动速度信息和 /或所述目标小区的大 小信息, 以使得所述目标小区所属的基站或源小区所属的基站根据所述终端 的移动速度信息和 /或目标小区的大小信息调整移动性控制参数, 并将调整后 的移动性控制参数发送给所述终端。
一种基站, 包括:
第二接收单元, 用于接收重建小区所属的基站发送的无线链路失败指示 消息, 所述无线链路失败指示消息中携带终端的移动速度信息和 /或所述目标 小区的大小信息; 第二发送单元, 用于发送切换报告消息给源小区所属的基站, 所述切换 才艮告消息中携带所述终端的移动速度信息和 /或所述目标小区的大小信息, 以 使得所述源小区所属的基站根据所述终端的移动速度信息和 /或目标小区的大 小信息调整移动性控制参数, 并将调整后的移动性控制参数发送给所述终端。
一种基站, 包括:
第三接收单元, 用于接收重建小区所属的基站发送的无线链路失败指示 消息或目标小区所属的基站发送的切换报告消息, 所述无线链路失败指示消 息或切换 ^艮告消息中携带终端的移动速度信息和 /或目标小区的大小信息; 第三参数调整单元, 用于根据所述第三接收单元接收到的无线链路失败 指示消息或切换报告消息中携带的所述终端的移动速度信息和 /或目标小区的 大小信息, 调整移动性控制参数;
第三发送单元, 用于将所述第三参数调整单元调整后的移动性控制参数 发送给终端。
一种控制参数的调整系统, 其特征在于, 包括: 终端, 第一基站, 第二 基站和第三基站;
所述终端从第一基站到第二基站切换失败, 或, 所述终端从第一基站到 第二基站的切换成功并且所述终端与第二基站建立的无线链路发生无线链路 连接失败时, 所述终端与第三基站重建无线链路, 所述终端发送上报消息给 所述第三基站, 所述上报消息中携带所述终端的速度信息和 /或所述目标小区 的大小信息;
所述第三基站接收所述终端发送的上报消息, 并且接收所述终端发送的 所述目标小区的标识或源小区的标识后, 根据所述目标小区的标识或源小区 的标识发送无线链路失败指示消息给所述第二基站或第一基站, 所述无线链 路失败指示消息中携带所述终端的移动速度信息和 /或所述目标小区的大小信 息 ;
所述第二基站接收第三基站发送的无线链路失败指示消息后, 根据源小 区的标识发送切换报告消息给第一基站, 所述切换报告消息中携带所述终端 的移动速度信息和 /或所述目标小区的大小信息;
所述第一基站接收第三基站发送的无线链路失败指示消息或第二基站发 送的切换报告消息, 所述无线链路失败指示消息或切换报告消息中携带终端 的移动速度信息和 /或目标小区的大小信息;
所述第一基站根据所述终端的移动速度信息和 /或所述目标小区的大小信 息调整移动性控制参数, 并发送所述调整后的移动性控制参数给终端。
本发明实施例釆用终端发送上报消息给所述重建小区, 所述上报消息中 携带所述终端的速度信息和 /或所述目标小区的大小信息, 所述重建小区发送 无线链路失败指示消息给所述目标小区或源小区, 源小区接收重建小区发送 的无线链路失败指示消息或目标小区发送的切换报告消息, 所述无线链路失 败指示消息或切换报告消息中携带终端的移动速度信息和 /或目标小区的大小 信息, 源小区根据所述终端的移动速度信息和 /或所述目标小区的大小信息调 整移动性控制参数, 并发送所述调整后的移动性控制参数给终端。
与现有技术中的源小区下发移动性控制参数初始值后, 通过人工对控制 参数进行调整相比, 本发明实施例提供的控制参数调整方法中源小区可以根 据终端移动速度信息和 /或所述目标小区的大小信息自动调整移动性控制参 数, 保证终端的链路连接失败率和乒乓切换率达到较好的平衡。 附图说明
图 1是本发明实施例中控制参数的调整方法的一实施例示意图; 图 2是本发明实施例中控制参数的调整方法的另一实施例示意图; 图 3是本发明实施例中终端的一实施例示意图;
图 4是本发明实施例中基站的一实施例示意图;
图 5是本发明实施例中基站的另一实施例示意图;
图 6是本发明实施例中基站的另一实施例示意图;
图 7是本发明实施例中基站的另一实施例示意图;
图 8是本发明实施例中系统的一实施例示意图;
图 9是本发明实施例中系统的另一实施例示意图。 具体实施方式
本发明实施例提供一种控制参数的调整方法, 可以使得基站自动调整终 端使用的移动性控制参数, 使终端的链路连接失败率和乒乓切换率达到较好 的平衡。 本发明实施例还提供相应的终端、 基站及系统。 以下分别进行详细 说明。
上述移动性控制参数包括与终端的移动性相关的参数。 参阅图 1 , 本发明实施例中控制参数的调整方法的一实施例包括:
101、 终端发送上报消息给所述重建小区, 所述上报消息中携带所述终端 的速度信息和 /或所述目标小区的大小信息。
终端与源小区建立连接后, 源小区发送移动性控制参数的初始值给终端, 所述移动性控制参数包括切换控制参数、 终端移动状态控制参数和目标小区 大小控制参数等等。 切换控制参数包括与切换过程相关的参数, 终端移动状 态控制参数包括与终端移动状态相关的参数。 其中切换控制参数包括测量事 件的触发时间 ( Time To Trigger )、 测量事件的偏置量、 层一滤波时间 T和层 三滤波系数 K等等; 终端移动状态控制参数包括高移动状态对应的缩放系数 sf-High, 中移动状态对应的缩放系数 sf-Medium等等; 目标小区大小控制参 数包括大小区对应的缩放系数 sf-Large,小小区对应的缩放系数 sf-Small等等。 移动性控制参数的初始值为上述参数的具体取值。
终端探测自身移动状态, 并根据自身移动状态选取对应的缩放系数对切 换控制参数进行缩放, 以 Time To Trigger为例:
当 UE探测到自身处于高移动状态的时候, UE对 Time To Trigger进行如 下缩放:
Time To Trigger 1 = = Time To Trigger x sf-High
在按照移动状态进行缩放后, UE判断目标小区的大小, 并根据目标小区 的大小选取对应的小区大小缩放系数对 Time To Trigger进行缩放:
在按照移动状态进行缩放后, 如按照高移动状态进行缩放后, UE判断出 目标小区为小小区时, UE对 Time To Triggerl进行如下缩放:
Time To Trigger3 = = Time To Triggerl x sf-Small
在此只是以 Time To Trigger为例进行说明, 其他切换控制参数也可以按照 上述方式进行缩放, UE根据缩放后的切换控制参数成功切换到目标小区, 随 后所述终端与目标小区无线链路失败, 所述终端与重建小区重建无线链路; 所述终端与重建小区建立无线链路后, 发送上报消息给所述重建小区, 所述上报消息中携带所述终端的移动速度信息和 /或所述目标小区的大小信 息。
所述速度信息可以是终端的移动状态信息, 所述终端的移动状态信息包 括所述 UE处于高移动状态, 中移动状态或正常移动状态。 移动状态的划分依 据可以是 UE在特定时间内切换次数, 如 UE在特定的时间内切换多于 10次则 UE处于高移动状态, 在特定时间内切换小于 10次但多于 5次则 UE处于中移动 状态,在特定时间内切换小于 5次则 UE处于正常移动状态, 当然在此只是举例 说明 UE的移动状态的划分原则, 具体分界线的取值可能不同。
所述目标小区的大小信息可以是所述目标小区为大小区, 中小区, 小小 区或小小小区之一, 小区大小的划分依据可以是小区基站的功率, 如小区基 站功率大于 10瓦为大小区, 大于 5瓦小于 10瓦为中小区, 大于 3瓦小于 5瓦为小 小区, 3瓦以下为小小小区, 当然在此只是举例说明小区大小的划分原则, 具 体分界线的取值可能不同。 UE可以通过多种方式获取所述目标小区的大小信 息, 例如所述目标小区可以使用系统广播或者专用信令发送自身的功率或者 大小信息, UE通过接收所述目标小区的系统广播或者专用信令(其中专用信 令可以是所述目标小区直接发送给 UE的, 也可以是经由源小区转发给 UE的) 获取所述目标小区的功率推知所述目标小区的大小信息, 或者直接获取所述 目标小区的大小信息, 等等。
所述上报消息中还携带有事件类型标志和 /或移动性控制参数, 所述移动 性控制参数包括切换控制参数, 终端移动状态控制参数, 目标小区大小控制 参数中的之一或组合, 所述事件类型标志表示所述事件类型是无线链路失败。
所述上 >¾消息中还携带有所述目标小区和所述源小区的标识。
102、 重建小区所属的基站接收终端发送的上报消息。
所述上 >¾消息携带所述终端的速度信息和 /或所述目标小区的大小信息。
103、 所述重建小区所属的基站发送无线链路失败指示消息给所述目标小 区, 所述无线链路失败指示消息中携带所述终端的移动速度信息和 /或所述目 标小区的大小信息。 所述重建小区根据上报消息中携带的事件类型标志和目标小区的标识, 获知所述终端在目标小区处切换失败, 发送无线链路失败指示消息给所述目 标小区, 告知目标小区, 所述终端在所述目标小区切换失败后在所述重建小 区重建了无线链路, 并在所述无线链路失败指示消息中携带所述终端的移动 速度信息和 /或所述目标小区的大小信息。
所述无线链路失败指示消息还携带有所述源小区的标识。
104、 目标小区所属的基站接收重建小区所属的基站发送的无线链路失败 指示消息。
目标小区所属的基站接收重建小区所属的基站发送的无线链路失败指示 消息, 所述无线链路失败指示消息中携带所述终端的移动速度信息和 /或所述 目标小区的大小信息, 所述无线链路失败指示消息中还携带有移动性控制参 数, 所述移动性控制参数包括切换控制参数, 终端移动状态控制参数, 目标 小区大小控制参数中的之一或组合。
105、 所述目标小区所属的基站发送切换报告消息给源小区, 所述切换报 告消息中携带所述终端的移动速度信息和 /或所述目标小区的大小信息。
目标小区根据所述事件类型标志和所述源小区的标识, 获知所述终端是 在从源小区成功切换过来后无线链路失败的, 发送切换报告消息给源小区, 所述切换^艮告消息中携带所述终端的移动速度信息和 /或所述目标小区的大小 信息, 所述切换报告消息中还携带有移动性控制参数, 所述移动性控制参数 包括切换控制参数, 终端移动状态控制参数, 目标小区大小控制参数中的至 少一个。
106、 源小区所属的基站接收目标小区发送的切换报告消息, 所述切换报 告消息中携带所述终端的移动速度信息和 /或所述目标小区的大小信息。
源小区根据接收到的切换报告, 获知终端从源小区成功切换到目标小区 后无线链路失败。
107、源小区所属的基站根据所述终端的移动速度信息和 /或所述目标小区 的大小信息调整移动性控制参数。
源小区所属的基站根据所述切换报告消息中携带的所述终端的移动速度 信息和 /或所述目标小区的大小信息对移动性控制参数进行调整, 如根据移动 速度信息获知终端处于高移动状态, 根据目标小区的大小信息获知目标小区 为小小区, 源小区所属的基站调整移动性控制参数。
如移动性控制参数的初始值 Time To Trigger= 10微秒, 高移动状态对应的 缩放系数 sf-High=0.9 , 小小区对应的缩放系数 sf-Small=0.8 , 这样的初始取值 导致终端根据参数 Time To Trigger=10*0.9*0.8=7.2微秒向目标小区切换时, 切 换成功, 随后 UE和目标小区发生无线链路失败; 终端根据获知的终端处于高 移动状态和目标小区为小小区, 调整 Time To Trigger=9微秒, sf-High=0.8 , sf-Small=0.7。
在此只是以这几个参数为例进行说明, 源小区也可以根据所述终端的移 动速度信息和 /或所述目标小区的大小信息对其他移动性控制参数进行相应的 调整, 以保证终端的链路连接失败率和切换乒乓率达到较好平衡。
108、 源小区所属的基站发送所述调整后的移动性控制参数给终端。 源小区调整移动性控制参数后, 将所述调整后的移动性控制参数发送给 终端, 以保证终端根据所述调整后的移动性控制参数进行小区切换, 以保证 终端的链路连接失败率和切换乒乓率达到较好平衡。
本发明实施例中, 终端发送上报消息给所述重建小区, 所述上报消息中 携带所述终端的速度信息和 /或所述目标小区的大小信息, 所述重建小区发送 无线链路失败指示消息给所述目标小区, 源小区接收目标小区发送的切换报 告消息, 所述切换报告消息中携带终端的移动速度信息和 /或目标小区的大小 信息, 源小区根据所述终端的移动速度信息和 /或所述目标小区的大小信息调 整移动性控制参数, 并发送所述调整后的移动性控制参数给终端。 与现有技 术中的源小区下发移动性控制参数初始值后, 通过人工对控制参数进行调整 相比, 本发明实施例提供的控制参数调整方法中源小区可以根据终端移动速 度信息和 /或所述目标小区的大小信息自动调整移动性控制参数, 保证终端的 链路连接失败率和乒乓切换率达到较好的平衡。
可选地, 在上述实施例基础上, 重建小区可以为源小区也可以为目标小 区: 当所述重建小区为源小区时, 步骤 103 106可以省略, 源小区所属的基站 接收到上报消息后, 根据所述上报消息中携带的信息进行参数调整; 当所述 重建小区为目标小区时, 步骤 103和 104可以省略, 目标小区所属的基站接收 到上报消息, 将所述上报消息中携带的信息发送给源小区, 源小区所属的基 站根据所述上报消息中携带的信息进行参数调整。
可选地, 在上述实施例中, 是在每次接收到上报消息后源小区都进行参 数调整, 实际上可以设置门限, 当上报消息的次数达到设置门限才进行参数 调整, 上述实施例若设置设置门限, 当所述源小区接收目标小区发送的切换 报告消息超过设置门限时: 在步骤 106之后还包括将所述终端移动速度信息和 /或所述目标小区大小信息进行分类; 确定出现次数最多的终端移动速度信息 和 /或所述目标小区大小信息; 步骤 107修改为: 根据所述出现次数最多的终端 移动速度信息和 /或所述目标小区大小信息调整移动性控制参数。
具体过程可以描述为: 将所述无线链路失败指示消息或切换报告消息中 携带的所述终端移动速度信息进行分类, 确定所述分类后的终端移动速度信 息的类别所对应的无线链路失败指示消息或切换报告消息的数目, 并确定数 目最多的无线链路失败指示消息或切换报告消息所对应的终端移动速度信息 的类别, 根据所述数目最多的无线链路失败指示消息或切换报告消息所对应 的终端移动速度信息的类别调整移动性控制参数, 并将调整后的移动性控制 参数发送给所述终端; 或
将所述无线链路失败指示消息或切换报告消息中携带的所述目标小区的 大小信息进行分类, 确定所述分类后的目标小区的大小信息的类别所对应的 无线链路失败指示消息或切换报告消息的数目, 并确定数目最多的无线链路 失败指示消息或切换报告消息所对应的目标小区的大小信息的类别, 根据所 述数目最多的无线链路失败指示消息或切换报告消息所对应的目标小区的大 'J、信息的类别调整移动性控制参数, 并将调整后的移动性控制参数发送给所 述终端; 或,
确定所述无线链路失败指示消息或切换报告消息中携带的所述目标小区 的大小信息的类别和所述终端移动速度信息的类别的组合类别, 确定所述组 合类别所对应的无线链路失败指示消息或切换报告消息的数目, 并确定数目 最多的无线链路失败指示消息或切换报告消息所对应的组合类别, 根据所述 数目最多的无线链路失败指示消息或切换报告消息所对应的组合类别调整移 动性控制参数, 并将调整后的移动性控制参数发送给所述终端。 可选地, 在上述实施例中, 是按照接收消息的次数设置设置门限的, 实 际上, 可以在每次接收消息后, 也就是在步骤 106后, 对所述切换报告消息中 携带终端的移动速度信息和 /或目标小区的大小信息进行分类, 确定确定数目 最多的无线链路失败指示消息或切换报告消息所对应的终端移动速度信息的 类别或目标小区的大小信息的类别或组合类别; 当任意类别所对应的无线链 路失败指示消息或切换报告消息超过设置门限时: 将步骤 107修改为根据数目 最多的无线链路失败指示消息或切换报告消息所对应的终端移动速度信息的 类别或目标小区的大小信息的类别或组合类别, 调整移动性控制参数。
上述实施例中具体描述了源小区对移动性控制参数进行调整的过程, 实 际上重建小区和目标小区也可以根据所述终端的移动速度信息和 /或目标小区 的大小信息进行参数调整, 也可以设置设置门限, 当接收到的消息达到设置 门限时, 根据所述出现次数最多的终端移动速度信息和 /或所述目标小区大小 信息调整移动性控制参数, 并将调整后的移动性控制参数发送给终端。
参阅图 2 , 本发明实施例中控制参数的调整方法的另一实施例包括:
201、 终端发送上报消息给所述重建小区, 所述上报消息中携带所述终端 的速度信息和 /或所述目标小区的大小信息。
终端从源小区到目标小区的切换失败后, 所述终端选择重建小区, 并与 重建小区建立无线链路后, 发送上报消息给所述重建小区, 所述上报消息中 携带所述终端的移动速度信息和 /或所述目标小区的大小信息。
所述速度信息可以是终端的移动状态信息, 所述终端的移动状态信息为 UE处于高移动状态, 中移动状态或正常移动状态之一。 移动状态的划分依据 可以是 UE在特定时间内切换次数, 如 UE在特定的时间内切换多于 10次则 UE 处于高移动状态, 在特定时间内切换小于 10次但多于 5次则 UE处于中移动状 态,在特定时间内切换小于 5次则 UE处于正常移动状态, 当然在此只是举例说 明 UE的移动状态的划分原则, 具体分界线的取值可能不同。
所述目标小区的大小信息为目标小区为大小区, 中小区, 小小区或小小 小区之一, 小区大小的划分依据可以是小区基站的功率, 如小区基站功率大 于 10瓦为大小区, 大于 5瓦小于 10瓦为中小区, 大于 3瓦小于 5瓦为小小区, 3 瓦以下为小小小区, 当然在此只是举例说明小区的划分原则, 具体分界线的 取值可能不同。 UE可以通过多种方式获取所述目标小区的大小信息, 例如所 述目标小区可以使用系统广播或者专用信令发送自身的功率或者大小信息, UE通过接收所述目标小区的系统广播或者专用信令(其中专用信令可以是所 述目标小区直接发送给 UE的, 也可以是经由源小区转发给 UE的)获取所述目 标小区的功率推知所述目标小区的大小信息, 或者直接获取所述目标小区的 大小信息, 等等。
所述上报消息中还携带有事件类型标志和 /或移动性控制参数, 所述移动 性控制参数包括切换控制参数, 终端移动状态控制参数, 目标小区大小控制 参数中的之一或组合, 所述事件类型标志表示所述事件类型是小区切换失败。
202、 重建小区所属的基站接收终端发送的上报消息。 所述上 >¾消息携带所述终端的速度信息和 /或所述目标小区的大小信息。
203、 所述重建小区所属的基站发送无线链路失败指示消息给所述源小 区, 所述无线链路失败指示消息中携带所述终端的移动速度信息和 /或所述目 标小区的大小信息。 所述重建小区所属的基站发送无线链路失败指示消息给所述源小区所属 的基站, 所述无线链路失败指示消息中携带所述终端的移动速度信息和 /或所 述目标小区的大小信息, 所述无线链路失败指示消息中还携带事件类型标志, 本实施例中, 事件类型标志为切换失败。
204、 源小区所属的基站接收重建小区发送的无线链路失败指示消息, 所 述无线链路失败指示消息中携带所述终端的移动速度信息和 /或所述目标小区 的大小信息。
205、源小区所属的基站根据所述终端的移动速度信息和 /或所述目标小区 的大小信息调整移动性控制参数。
所述无线链路失败指示消息中还携带事件类型标志, 本实施例中, 事件 类型标志为切换失败, 源小区根据事件类型标志获知终端根据移动性控制参 数初始值进行切换, 切换失败, 根据所述无线链路失败指示消息中携带所述 终端的移动速度信息和 /或所述目标小区的大小信息调整移动性控制参数, 以 保证终端的链路连接失败率和切换乒乓率达到较好平衡。 206、 源小区所属的基站发送所述调整后的移动性控制参数给终端。 源小区所属的基站调整移动性控制参数后, 将所述调整后的移动性控制 参数发送给终端, 以保证终端根据所述调整后的移动性控制参数进行小区切 换, 以保证终端的链路连接失败率和切换乒乓率达到较好平衡。
本发明实施例中, 终端发送上报消息给所述重建小区, 所述上报消息中 携带所述终端的速度信息和 /或所述目标小区的大小信息, 所述重建小区发送 无线链路失败指示消息给所述源小区, 源小区接收重建小区发送的无线链路 失败指示消息, 所述无线链路失败指示消息中携带终端的移动速度信息和 /或 目标小区的大小信息, 源小区根据所述终端的移动速度信息和 /或所述目标小 区的大小信息调整移动性控制参数, 并发送所述调整后的移动性控制参数给 终端。 与现有技术中的源小区下发移动性控制参数初始值后, 通过人工对控 制参数进行调整相比, 本发明实施例提供的控制参数调整方法中源小区可以 根据终端移动速度信息和 /或所述目标小区的大小信息自动调整移动性控制参 数, 保证终端的链路连接失败率和乒乓切换率达到较好的平衡。
可选地, 在上述实施例基础上, 重建小区可以为源小区, 也可以为目标 小区。 当所述重建小区为源小区时, 步骤 203和 204可以省略, 源小区接收到 UE上报消息后, 根据所述上报消息中携带的信息进行参数调整。
可选地, 在上述实施例中, 源小区是在每次接收到上报消息后都进行参 数调整, 实际上可以设置门限, 当上报消息的次数达到设置门限才进行参数 调整, 上述实施例若设置门限, 当所述源小区接收重建小区发送的无线链路 失败指示消息消息超过设置门限时: 在步骤 204之后还包括将所述终端移动速 度信息和 /或所述目标小区大小信息进行分类; 确定出现次数最多的终端移动 速度信息和 /或所述目标小区大小信息; 步骤 205修改为: 根据所述出现次数最 多的终端移动速度信息和 /或所述目标小区大小信息调整移动性控制参数。
可选地, 在上述实施例中, 是按照接收消息的次数设置设置门限的, 实 际上, 可以在每次接收消息后, 也就是在步骤 204后, 对所述切换报告消息中 携带终端的移动速度信息和 /或目标小区的大小信息进行分类, 确定确定数目 最多的无线链路失败指示消息或切换报告消息所对应的终端移动速度信息的 类别或目标小区的大小信息的类别或组合类别; 当任意类别所对应的无线链 路失败指示消息或切换报告消息超过设置门限时: 将步骤 205修改为根据数目 最多的无线链路失败指示消息或切换报告消息所对应的终端移动速度信息的 类别或目标小区的大小信息的类别或组合类别, 调整移动性控制参数。
上述实施例中具体描述了源小区对移动性控制参数进行调整的过程, 实 际上重建小区也可以根据所述终端的移动速度信息和 /或目标小区的大小信息 进行参数调整, 也可以设置门限, 当接收到的消息达到设置门限时, 根据所 述出现次数最多的终端移动速度信息和 /或所述目标小区大小信息调整移动性 控制参数 , 并将调整后的移动性控制参数发送给终端。
在一个实施例中, 重建小区所属的基站将上述终端的移动速度信息和 /或 目标小区的大小信息发送给源小区所属的基站以及目标小区所属的基站中的 至少一个, 以使得所述重建小区所属的基站、 源小区所属的基站以及目标小 区所属的基站中的至少一个根据所述终端的移动速度信息和 /或所述目标小区 的大小信息调整移动性控制参数。 参阅图 3 , 本发明实施例中的终端 30包括: 无线链路重建单元 301、 获取 单元 302和发送单元 302。
所述无线链路重建单元 301 ,用于在从源小区到目标小区的切换失败,或, 所述终端从源小区到目标小区的切换成功并且所述终端与目标小区建立的无 线链路发生无线链路连接失败时, 与重建小区重建无线链路;
所述获取单元 302 , 用于通过所述目标小区的系统广播或者专用信令获取 所述目标小区的功率, 根据所述目标小区的功率获取所述目标小区的大小信 息, 或者, 获取所述目标小区的系统广播或者专用信令携带的所述目标小区 的大小信息。
所述发送单元 303 , 用于在无线链路重建单元 301与重建小区重建无线链 路后发送上报消息给所述重建小区所属的基站, 所述上报消息中携带所述终 端的速度信息和 /或所述目标小区的大小信息, 以使得所述重建小区所属的基 站根据所述终端的移动速度信息和 /或目标小区的大小信息调整移动性控制参 数, 并将调整后的移动性控制参数发送给所述终端。
本发明实施例中, 终端 30的无线链路重建单元 301在从源小区到目标小区 的切换失败, 或, 所述终端从源小区到目标小区的切换成功并且所述终端与 目标小区建立的无线链路发生无线链路连接失败时, 与重建小区重建无线链 路, 获取单元 302获取述目标小区的大小信息, 发送单元 303在无线链路重建 单元 301与重建小区重建无线链路后发送上报消息给所述重建小区, 所述上报 消息中携带所述终端的速度信息和 /或所述目标小区的大小信息。 与现有技术 标小区的大小信息给重建小区, 以使小区中的基站可以根据所述信息调整移 动性控制参数, 保证终端的无线链路连接失败率和乒乓切换率达到较好的平 衡。 参阅图 4 , 本发明实施例中的基站的一实施例包括: 第一接收单元 401、 和第一发送单元 402和第一参数调节单元 403。
所述第一接收单元 401 , 用于接收终端发送的上报消息, 所述上报消息中 携带所述终端的移动速度信息和 /或目标小区的大小信息, 并且接收所述终端 发送的所述目标小区的标识或源小区的标识;
所述第一发送单元 402, 用于根据所述目标小区的标识或源小区的标识发 送无线链路失败指示消息给所述目标小区所属的基站或源小区所属的基站, 所述无线链路失败指示消息中携带所述终端的移动速度信息和 /或所述目标小 区的大小信息, 以使得源小区所属的基站根据所述终端的移动速度信息和 /或 目标小区的大小信息调整移动性控制参数, 并将调整后的移动性控制参数发 送给所述终端。
所述第一参数调节单元 403 , 用于根据所述第一接收单元 401接收到的所 述终端的移动速度信息和 /或目标小区的大小信息调整移动性控制参数;
所述第一发送单元 402 , 还用于将所述第一参数调节单元 403调整后的移 动性控制参数发送给所述终端。
本发明实施例中提供的基站, 第一接收单元 401接收终端发送的上报消 息,所述上 >¾消息中携带所述终端的移动速度信息和 /或目标小区的大小信息, 并且接收所述终端发送的所述目标小区的标识或源小区的标识, 第一发送单 元 402用于根据所述目标小区的标识或源小区的标识发送无线链路失败指示 消息给所述目标小区所属的基站或源小区所属的基站, 以使得源小区所属的 基站根据所述终端的移动速度信息和 /或目标小区的大小信息调整移动性控制 参数, 并将调整后的移动性控制参数发送给所述终端。 保证终端的无线链路 连接失败率和乒乓切换率达到较好的平衡。
本发明实施例中, 所述第一参数调节单元 403 , 还可以根据所述第一接收 单元 401接收到的所述终端的移动速度信息和 /或目标小区的大小信息调整移 动性控制参数; 所述第一发送单元 402将所述第一参数调节单元调整后的移动 性控制参数发送给所述终端。 参阅图 5 , 本发明实施例中的基站的另一实施例包括: 第二接收单元 501、 和第二发送单元 502和第二参数调节单元 503。
所述第二接收单元 501 , 用于接收重建小区所属的基站发送的无线链路失 败指示消息, 所述无线链路失败指示消息中携带终端的移动速度信息和 /或所 述目标小区的大小信息;
所述第二发送单元 502 , 用于发送切换报告消息给源小区所属的基站, 所 述切换报告消息中携带所述终端的移动速度信息和 /或所述目标小区的大小信 息, 以使得所述源小区所属的基站根据所述终端的移动速度信息和 /或目标小 区的大小信息调整移动性控制参数, 并将调整后的移动性控制参数发送给所 述终端。
所述第二参数调节单元 503 , 用于根据所述第二接收单元 501接收到的所 述终端的移动速度信息和 /或目标小区的大小信息调整移动性控制参数;
所述第二发送单元, 还用于将所述第二参数调整单元 503将调整后的移动 性控制参数发送给终端。
本发明实施例中, 所述第二接收单元 501接收重建小区所属的基站发送的 无线链路失败指示消息, 所述无线链路失败指示消息中携带终端的移动速度 信息和 /或所述目标小区的大小信息,所述第二发送单元 502发送切换报告消息 给源小区所属的基站, 所述切换报告消息中携带所述终端的移动速度信息和 / 或所述目标小区的大小信息, 以使得所述源小区所属的基站根据所述终端的 移动速度信息和 /或目标小区的大小信息调整移动性控制参数, 并将调整后的 移动性控制参数发送给所述终端。 保证终端的无线链路连接失败率和乒乓切 换率达到较好的平衡。
本发明实施例中, 所述第二参数调节单元 503 , 还可以根据所述第二接收 单元 501接收到的所述终端的移动速度信息和 /或目标小区的大小信息调整移 动性控制参数; 所述第二发送单元 502将所述第二参数调节单元调整后的移动 性控制参数发送给所述终端。 参阅图 6 , 本发明实施例中的基站的一实施例包括: 第三接收单元 601、 第三参数调整单元 602和第三发送单元 603。
所述第一接收单元 601 , 用于接收重建小区所属的基站发送的无线链路失 败指示消息或目标小区所属的基站发送的切换报告消息, 所述无线链路失败 指示消息或切换 "^告消息中携带终端的移动速度信息和 /或目标小区的大小信 息;
所述第三参数调整单元 602 , 用于根据所述第一接收单元 601接收到的无 线链路失败指示消息或切换报告消息中携带的所述终端的移动速度信息和 /或 目标小区的大小信息, 调整移动性控制参数;
所述第三发送单元 603 , 用于将所述参数调整单元 602调整后的移动性控 制参数发送给终端。
本发明实施例中, 基站的第三接收单元 601接收重建小区所属的基站发送 的无线链路失败指示消息或目标小区所属的基站发送的切换报告消息, 所述 消息中携带所述终端的移动速度信息和 /或目标小区的大小信息, 所述参数调 整单元 402根据所述第三接收单元 601接收到的消息中携带的所述终端的移动 速度信息和 /或目标小区的大小信息,调整移动性控制参数, 第三发送单元 603 在所述第三参数调整单元 602调整移动性控制参数后, 发送调整后的移动性控 制参数给终端。 本发明实施例中, 基站根据所述终端的移动速度信息和 /或目 标小区的大小信息调整移动性控制参数, 保证终端的无线链路连接失败率和 乒乓切换率达到较好的平衡。
参阅图 7 , 本发明实施例中的基站的另一实施例还包括: 信息分类单元 604、 确定单元 605、 所述第三参数调整单元 602和所述第三发送单元 603。
所述信息分类单元 604, 用于将所述无线链路失败指示消息或切换报告消 息中携带的所述终端移动速度信息进行分类; 或, 用于将所述无线链路失败 指示消息或切换 ^艮告消息中携带的所述目标小区的大小信息进行分类;
所述确定单元 605 , 用于在所述信息分类单元 604对所述终端移动速度信 息进行分类后, 确定所述分类后的终端移动速度信息的类别所对应的无线链 路失败指示消息或切换报告消息的数目, 并确定数目最多的无线链路失败指 示消息或切换报告消息所对应的终端移动速度信息的类别; 或, 用于在所述 信息分类单元 604对所述目标小区的大小信息进行分类后, 确定所述分类后的 目标小区的大小信息的类别所对应的无线链路失败指示消息或切换报告消息 的数目, 并确定数目最多的无线链路失败指示消息或切换报告消息所对应的 目标小区的大小信息的类别; 或, 用于确定所述无线链路失败指示消息或切 换报告消息中携带的所述目标小区的大小信息的类别和所述终端移动速度信 息的类别的组合类别, 确定所述组合类别所对应的无线链路失败指示消息或 切换报告消息的数目, 并确定数目最多的无线链路失败指示消息或切换报告 消息所对应的组合类别;
所述参数调整单元 602 , 还用于在确定单元 605确定数目最多的无线链路 失败指示消息或切换报告消息所对应的终端移动速度信息的类别后, 根据所 述数目最多的无线链路失败指示消息或切换报告消息所对应的终端移动速度 信息的类别调整移动性控制参数; 或, 还用于在确定单元 605确定数目最多的 无线链路失败指示消息或切换报告消息所对应的目标小区的大小信息的类 别, 根据所述数目最多的无线链路失败指示消息或切换报告消息所对应的目 标小区的大小信息的类别调整移动性控制参数; 或, 还用于在确定单元 605确 定数目最多的无线链路失败指示消息或切换报告消息所对应的组合类别, 根 据所述数目最多的无线链路失败指示消息或切换报告消息所对应的组合类别 调整移动性控制参数;
所述第一发送单元 603 , 还用于将所述参数调整单元 602调整后的移动性 控制参数发送给所述终端。
本发明实施例中, 在基站侧设置门限, 当基站 60第三接收单元 601接收到 消息的次数超过设置门限后, 信息分类单元 604将所述终端移动速度信息和 / 或所述目标小区大小信息进行分类, 确定单元 605确定出现次数最多的终端移 动速度信息和 /或所述目标小区大小信息,参数调整单元 602根据所述出现次数 最多的终端移动速度信息和 /或所述目标小区大小信息调整移动性控制参数, 第三发送单元 603发送调整后的移动性控制参数给终端。 基站根据终端或其他 基站发送消息中携带的所述终端的移动速度信息和 /或目标小区的大小信息调 整移动性控制参数, 保证终端的链路连接失败率和乒乓切换率达到较好的平 衡。 在上述图 4图 5对应的实施例中的基站也可以包括信息分类单元和确定单 元, 具体执行过程与图 7对应的基站相同。
参阅图 8 ,本发明实施例中控制参数的调整系统的一实施例包括:终端 30 , 第一基站 70 , 第二级站 80和第三基站 90;
所述终端 30从第一基站 70到第二基站 80的切换成功并且所述终端 30与第 二基站 80建立的无线链路发生无线链路连接失败时, 所述终端 30与第三基站 90重建无线链路, 所述终端发送上报消息给所述第三基站 90 , 所述上报消息 中携带所述终端的速度信息和 /或目标小区的大小信息;
所述第三基站 90接收所述终端 30发送的上报消息后, 并且接收所述终端 发送的所述目标小区的标识或源小区的标识后, 根据所述目标小区的标识或 源小区的标识发送无线链路失败指示消息给所述第二基站 80 , 所述无线链路 失败指示消息中携带所述终端的移动速度信息和 /或所述目标小区的大小信 息 ;
所述第二基站 80接收第三基站 90发送的无线链路失败指示消息后, 根据 源小区的标识发送切换报告消息给第一基站 70 , 所述切换报告消息中携带所 述终端的移动速度信息和 /或所述目标小区的大小信息;
所述第一基站 70接收第二基站 80发送的切换报告消息, 所述切换报告消 息中携带的终端的移动速度信息和 /或目标小区的大小信息;
所述第一基站 70根据所述终端的移动速度信息和 /或所述目标小区的大小 信息调整移动性控制参数, 并发送所述调整后的移动性控制参数给终端 30。
本发明实施例中, 终端发送上报消息给第三基站, 所述上报消息中携带 所述终端的速度信息和 /或所述目标小区的大小信息, 第三基站发送无线链路 失败指示消息给第二基站, 第二级站发送切换报告消息给第一基站, 所述切 换报告消息中携带所述终端的移动速度信息和 /或所述目标小区的大小信息, 第一基站根据所述终端的移动速度信息和 /或所述目标小区的大小信息调整移 动性控制参数, 并发送所述调整后的移动性控制参数给终端。 基站根据其他 基站发消息中携带的所述终端的移动速度信息和 /或目标小区的大小信息调整 移动性控制参数, 保证终端的无线链路连接失败率和乒乓切换率达到较好的 平衡。
可选地, 在上述图 8对应的实施例中, 第二基站和第三基站也可以进行参 数调整, 将调整后的移动性控制参数发送给终端。
参阅图 9 , 本发明实施例中控制参数的调整系统的另一实施例包括: 终端 30, 第一基站 70 , 第二级站 80和第三基站 90;
所述终端 30从第一基站 70到第二基站 80的切换失败, 所述终端 30与第三 基站 90重建无线链路, 所述终端发送上报消息给所述第三基站 90 , 所述上报 消息中携带所述终端的速度信息和 /或所述目标小区的大小信息;
所述第三基站 90接收所述终端 30发送的上报消息后, 根据源小区的标识 发送无线链路失败指示消息给第一基站 70 , 所述无线链路失败指示消息中携 带所述终端的移动速度信息和 /或所述目标小区的大小信息 ;
所述第一基站 70接收第三基站 90发送的无线链路失败指示消息, 所述无 线链路失败指示消息中携带终端的移动速度信息和 /或目标小区的大小信息; 所述第一基站 70根据所述终端的移动速度信息和 /或所述目标小区的大小 信息调整移动性控制参数, 并发送所述调整后的移动性控制参数给终端 30。
本发明实施例中, 终端发送上报消息给第三基站, 所述上报消息中携带 所述终端的速度信息和 /或所述目标小区的大小信息, 第三基站发送无线链路 失败指示消息给第一基站, 所述无线链路失败指示消息中携带所述终端的移 动速度信息和 /或所述目标小区的大小信息, 第一基站根据所述终端的移动速 度信息和 /或所述目标小区的大小信息调整移动性控制参数, 并发送所述调整 后的移动性控制参数给终端。 基站根据其他基站发消息中携带的所述终端的 移动速度信息和 /或目标小区的大小信息调整移动性控制参数, 保证终端的无 线链路连接失败率和乒乓切换率达到较好的平衡。
可选地, 在上述图 8对应的实施例中, 第三基站也可以进行参数调整, 将 调整后的移动性控制参数发送给终端。 本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步 骤是可以通过程序来指令相关的硬件来完成, 该程序可以存储于一计算机可 读存储介质中, 存储介质可以包括: ROM、 RAM, 磁盘或光盘等。 以上对本发明实施例所提供的控制参数的调整方法以及终端、 基站和系 了阐述, 以上实施例的说明只是用于帮助理解本发明的方法及其核心思想; 同时, 对于本领域的一般技术人员, 依据本发明的思想, 在具体实施方式及 应用范围上均会有改变之处, 综上所述, 本说明书内容不应理解为对本发明 的限制。

Claims

权 利 要求 书
1、 一种控制参数的调整方法, 其特征在于, 包括:
当终端从源小区到目标小区切换失败, 或, 所述终端从源小区到目标小区 切换成功并且所述终端与目标小区建立的无线链路发生无线链路连接失败时, 所述终端与重建小区重建无线链路;
所述终端发送上报消息给所述重建小区所属的基站, 所述上报消息中携带 所述终端的移动速度信息和 /或所述目标小区的大小信息, 以使得所述重建小区 所属的基站根据所述终端的移动速度信息和 /或目标小区的大小信息调整移动性 控制参数 , 并将调整后的移动性控制参数发送给所述终端。
2、 根据权利要求 1所述的控制参数的调整方法, 其特征在于, 所述终端的 移动速度信息包括所述终端的移动状态信息和 /或终端移动速度取值, 所述终端 的移动状态信息包括所述终端处于高移动状态, 或所述终端处于中移动状态或 所述终端处于正常移动状态。
3、 根据权利要求 1所述的控制参数的调整方法, 其特征在于,
所述目标小区的大小信息包括所述目标小区为大小区, 或中小区, 或小小 区或小小小区。
4、 根据权利要求 1所述的控制参数的调整方法, 其特征在于, 所述上报消 息中还携带有事件类型标志和 /或移动性控制参数, 所述移动性控制参数包括切 换控制参数, 终端移动状态控制参数, 以及目标小区大小控制参数中的至少一 个, 所述事件类型标志表示所述事件类型包括无线链路失败或小区切换失败。
5、 根据权利要求 1所述的控制参数的调整方法, 其特征在于, 还包括: 所述终端通过所述目标小区的系统广播或者专用信令获取所述目标小区的 功率, 根据所述目标小区的功率获取所述目标小区的大小信息;
或者
所述终端获取所述目标小区的系统广播或者专用信令携带的所述目标小区 的大小信息。
6、 一种控制参数的调整方法, 其特征在于, 包括:
重建小区所属的基站接收终端发送的上报消息, 所述上报消息中携带所述 终端的移动速度信息和 /或目标小区的大小信息, 并且接收所述终端发送的所述 目标小区的标识或源小区的标识;
所述重建小区所属的基站根据所述目标小区的标识或源小区的标识发送无 线链路失败指示消息给所述目标小区所属的基站或源小区所属的基站, 所述无 线链路失败指示消息中携带所述终端的移动速度信息和 /或所述目标小区的大小 信息, 以使得所述目标小区所属的基站或源小区所属的基站根据所述终端的移 动速度信息和 /或目标小区的大小信息调整移动性控制参数, 并将调整后的移动 性控制参数发送给所述终端。
7、 根据权利要求 6所述的控制参数的调整方法, 其特征在于, 在所述重建 小区所属的基站接收所述终端发送的上报消息后, 还包括:
所述重建小区所属的基站根据所述终端的移动速度信息和 /或目标小区的大 小信息调整移动性控制参数, 并将调整后的移动性控制参数发送给所述终端。
8、 根据权利要求 6所述的控制参数的调整方法, 其特征在于, 当所述重建 小区所属的基站接收所述终端发送的上报消息的数目超过设置门限时, 还包括: 将所述上报消息中携带的所述终端移动速度信息进行分类, 确定所述分类 后的终端移动速度信息的类别所对应的上报消息的数目, 并确定数目最多的上 报消息所对应的终端移动速度信息的类别, 根据所述数目最多的上报消息所对 应的终端移动速度信息的类别调整移动性控制参数, 并将调整后的移动性控制 参数发送给所述终端; 或
将所述上报消息中携带的所述目标小区的大小信息进行分类, 确定所述分 类后的目标小区的大小信息的类别所对应的上报消息的数目, 并确定数目最多 的上报消息所对应的目标小区的大小信息的类别, 根据所述数目最多的上报消 息所对应的目标小区的大小信息的类别调整移动性控制参数, 并将调整后的移 动性控制参数发送给所述终端; 或,
确定所述上报消息中携带的所述目标小区的大小信息的类别和所述终端移 动速度信息的类别的组合类别, 确定所述组合类别所对应的上报消息的数目, 并确定数目最多的上报消息所对应的组合类别, 根据所述数目最多的上报消息 所对应的组合类别调整移动性控制参数, 并将调整后的移动性控制参数发送给 所述终端。
9、 一种控制参数的调整方法, 其特征在于, 包括: 目标小区所属的基站接收重建小区所属的基站发送的无线链路失败指示消 息, 所述无线链路失败指示消息中携带终端的移动速度信息和 /或所述目标小区 的大小信息;
所述目标小区所属的基站发送切换报告消息给源小区所属的基站, 所述切 换报告消息中携带所述终端的移动速度信息和 /或所述目标小区的大小信息, 以 使得所述源小区所属的基站根据所述终端的移动速度信息和 /或目标小区的大小 信息调整移动性控制参数, 并将调整后的移动性控制参数发送给所述终端。
10、 根据权利要求 9所述的控制参数的调整方法, 其特征在于, 在所述目标 小区所属的基站接收重建小区所属的基站发送的无线链路失败指示消息后, 还 包括:
所述目标小区所属的基站根据所述终端的移动速度信息和 /或目标小区的大 小信息调整移动性控制参数, 并将调整后的移动性控制参数发送给终端。
11、 根据权利要求 9所述的控制参数的调整方法, 其特征在于, 当所述目标 小区所属的基站接收重建小区所属的基站发送的无线链路失败指示消息超过设 置门限, 还包括:
将所述无线链路失败指示消息中携带的所述终端移动速度信息进行分类, 确定所述分类后的终端移动速度信息的类别所对应的无线链路失败指示消息的 数目, 并确定数目最多的无线链路失败指示消息所对应的终端移动速度信息的 类别, 根据所述数目最多的无线链路失败指示消息所对应的终端移动速度信息 的类别调整移动性控制参数, 并将调整后的移动性控制参数发送给所述终端; 或
将所述无线链路失败指示消息中携带的所述目标小区的大小信息进行分 类, 确定所述分类后的目标小区的大小信息的类别所对应的无线链路失败指示 消息的数目, 并确定数目最多的无线链路失败指示消息所对应的目标小区的大 小信息的类别, 根据所述数目最多的无线链路失败指示消息所对应的目标小区 的大小信息的类别调整移动性控制参数, 并将调整后的移动性控制参数发送给 所述终端; 或,
确定所述无线链路失败指示消息中携带的所述目标小区的大小信息的类别 和所述终端移动速度信息的类别的组合类别, 确定所述组合类别所对应的无线 链路失败指示消息的数目, 并确定数目最多的无线链路失败指示消息所对应的 组合类别, 根据所述数目最多的无线链路失败指示消息所对应的组合类别调整 移动性控制参数, 并将调整后的移动性控制参数发送给所述终端。
12、 一种控制参数的调整方法, 其特征在于, 包括:
源小区所属的基站接收重建小区所属的基站发送的无线链路失败指示消息 或目标小区所属的基站发送的切换报告消息, 所述无线链路失败指示消息或切 换才艮告消息中携带终端的移动速度信息和 /或目标小区的大小信息;
根据所述终端的移动速度信息和 /或所述目标小区的大小信息调整移动性控 制参数, 并发送所述调整后的移动性控制参数给终端。
13、 根据权利要求 12所述的控制参数的调整方法, 其特征在于, 所述方法 还包括:
当终端从源小区到目标小区切换失败时, 或, 所述终端从源小区到目标小 区切换成功并且所述终端与目标小区建立的无线链路发生无线链路连接失败 时, 所述终端与重建小区重建无线链路;
所述终端发送上报消息给所述重建小区所属的基站, 所述上报消息中携带 所述终端的移动速度信息和 /或所述目标小区的大小信息。
14、 根据权利要求 12所述的控制参数的调整方法, 其特征在于, 所述终端 的移动速度信息包括所述终端的移动状态信息和 /或终端移动速度取值, 所述终 端的移动状态信息包括所述终端处于高移动状态, 或所述终端处于中移动状态 或所述终端处于正常移动状态。
15、 根据权利要求 12所述的控制参数的调整方法, 其特征在于,
所述目标小区的大小信息包括所述目标小区为大小区, 或中小区, 或小小 区或小小小区。
16、 根据权利要求 12所述的控制参数的调整方法, 其特征在于, 当所述源 小区所属的基站接收重建小区所属的基站发送的无线链路失败指示消息的数目 或目标小区所属的基站发送的切换报告消息的数目超过设置门限时, 还包括: 将所述无线链路失败指示消息或切换报告消息中携带的所述终端移动速度 信息进行分类, 确定所述分类后的终端移动速度信息的类别所对应的无线链路 失败指示消息或切换报告消息的数目, 并确定数目最多的无线链路失败指示消 息或切换报告消息所对应的终端移动速度信息的类别, 根据所述数目最多的无 线链路失败指示消息或切换报告消息所对应的终端移动速度信息的类别调整移 动性控制参数, 并将调整后的移动性控制参数发送给所述终端; 或
将所述无线链路失败指示消息或切换报告消息中携带的所述目标小区的大 'J、信息进行分类, 确定所述分类后的目标小区的大小信息的类别所对应的无线 链路失败指示消息或切换报告消息的数目, 并确定数目最多的无线链路失败指 示消息或切换报告消息所对应的目标小区的大小信息的类别, 根据所述数目最 多的无线链路失败指示消息或切换报告消息所对应的目标小区的大小信息的类 别调整移动性控制参数, 并将调整后的移动性控制参数发送给所述终端; 或, 确定所述无线链路失败指示消息或切换报告消息中携带的所述目标小区的 大小信息的类别和所述终端移动速度信息的类别的组合类别, 确定所述组合类 别所对应的无线链路失败指示消息或切换报告消息的数目, 并确定数目最多的 无线链路失败指示消息或切换报告消息所对应的组合类别, 根据所述数目最多 的无线链路失败指示消息或切换报告消息所对应的组合类别调整移动性控制参 数, 并将调整后的移动性控制参数发送给所述终端。
17、 根据权利要求 12所述的控制参数的调整方法, 其特征在于, 还包括: 将所述无线链路失败指示消息或切换报告消息中携带的所述终端移动速度 信息进行分类, 确定所述分类后的终端移动速度信息的类别所对应的无线链路 失败指示消息或切换报告消息的数目, 并确定数目最多的无线链路失败指示消 息或切换报告消息所对应的终端移动速度信息的类别, 当所述数目最多的终端 移动速度信息的类别所对应的无线链路失败指示消息或切换报告消息的数目超 过设置门限时: 根据所述数目最多的无线链路失败指示消息或切换报告消息所 对应的终端移动速度信息的类别调整移动性控制参数, 并将调整后的移动性控 制参数发送给所述终端; 或
将所述无线链路失败指示消息或切换报告消息中携带的所述目标小区的大 'J、信息进行分类, 确定所述分类后的目标小区的大小信息的类别所对应的无线 链路失败指示消息或切换报告消息的数目, 并确定数目最多的无线链路失败指 示消息或切换报告消息所对应的目标小区的大小信息的类别, 当所述数目最多 的目标小区的大小信息的类别所对应的无线链路失败指示消息或切换报告消息 的数目超过设置门限时: 根据所述数目最多的无线链路失败指示消息或切换报 告消息所对应的目标小区的大小信息的类别调整移动性控制参数, 并将调整后 的移动性控制参数发送给所述终端; 或,
确定所述无线链路失败指示消息或切换报告消息中携带的所述目标小区的 大小信息的类别和所述终端移动速度信息的类别的组合类别, 确定所述组合类 别所对应的无线链路失败指示消息或切换报告消息的数目, 并确定数目最多的 无线链路失败指示消息或切换报告消息所对应的组合类别, 当所述数目最多的 组合类别所对应的无线链路失败指示消息或切换报告消息的数目超过设置门限 时: 根据所述数目最多的无线链路失败指示消息或切换报告消息所对应的组合 类别调整移动性控制参数, 并将调整后的移动性控制参数发送给所述终端。
18、 一种终端, 其特征在于, 包括:
无线链路重建单元, 用于在从源小区到目标小区的切换失败, 或, 所述终 端从源小区到目标小区的切换成功并且所述终端与目标小区建立的无线链路发 生无线链路连接失败时, 与重建小区重建无线链路;
发送单元, 用于在无线链路重建单元与重建小区重建无线链路后发送上报 消息给所述重建小区所属的基站, 所述上报消息中携带所述终端的速度信息和 / 或所述目标小区的大小信息, 以使得所述重建小区所属的基站根据所述终端的 移动速度信息和 /或目标小区的大小信息调整移动性控制参数, 并将调整后的移 动性控制参数发送给所述终端。
19、 根据权利要求 18所述的终端, 其特征在于, 还包括:
获取单元, 用于通过所述目标小区的系统广播或者专用信令获取所述目标 小区的功率, 根据所述目标小区的功率获取所述目标小区的大小信息, 或者, 获取所述目标小区的系统广播或者专用信令携带的所述目标小区的大小信息。
20、 一种基站, 其特征在于, 包括:
第一接收单元, 用于接收终端发送的上报消息, 所述上报消息中携带所述 终端的移动速度信息和 /或目标小区的大小信息, 并且接收所述终端发送的所述 目标小区的标识或源小区的标识;
第一发送单元, 用于根据所述目标小区的标识或源小区的标识发送无线链 路失败指示消息给所述目标小区所属的基站或源小区所属的基站, 所述无线链 路失败指示消息中携带所述终端的移动速度信息和 /或所述目标小区的大小信 息, 以使得所述目标小区所属的基站或源小区所属的基站根据所述终端的移动 速度信息和 /或目标小区的大小信息调整移动性控制参数, 并将调整后的移动性 控制参数发送给所述终端。
21、 根据权利要求 20所述的基站, 其特征在于, 还包括:
第一参数调节单元, 用于根据所述第一接收单元接收到的所述终端的移动 速度信息和 /或目标小区的大小信息调整移动性控制参数;
所述第一发送单元, 还用于将所述第一参数调节单元调整后的移动性控制 参数发送给所述终端。
22、 一种基站, 其特征在于, 包括:
第二接收单元, 用于接收重建小区所属的基站发送的无线链路失败指示消 息, 所述无线链路失败指示消息中携带终端的移动速度信息和 /或所述目标小区 的大小信息;
第二发送单元, 用于发送切换报告消息给源小区所属的基站, 所述切换报 告消息中携带所述终端的移动速度信息和 /或所述目标小区的大小信息, 以使得 所述源小区所属的基站根据所述终端的移动速度信息和 /或目标小区的大小信息 调整移动性控制参数, 并将调整后的移动性控制参数发送给所述终端。
23、 根据权利要求 22所述的基站, 其特征在于, 还包括:
第二参数调节单元, 用于根据所述第二接收单元接收到的所述终端的移动 速度信息和 /或目标小区的大小信息调整移动性控制参数;
所述第二发送单元, 还用于将所述第二参数调整单元将调整后的移动性控 制参数发送给终端。
24、 一种基站, 其特征在于, 包括:
第三接收单元, 用于接收重建小区所属的基站发送的无线链路失败指示消 息或目标小区所属的基站发送的切换报告消息, 所述无线链路失败指示消息或 切换 ^艮告消息中携带终端的移动速度信息和 /或目标小区的大小信息;
第三参数调整单元, 用于根据所述第三接收单元接收到的无线链路失败指 示消息或切换报告消息中携带的所述终端的移动速度信息和 /或目标小区的大小 信息, 调整移动性控制参数; 第三发送单元, 用于将所述第三参数调整单元调整后的移动性控制参数发 送给终端。
25、 根据权利要求 24所属的基站, 其特征在于, 当所述第一接收单元接收 重建小区所属的基站发送的无线链路失败指示消息的数目或目标小区所属的基 站发送的切换报告消息的数目超过设置门限时, 所述基站还包括:
信息分类单元, 用于将所述无线链路失败指示消息或切换报告消息中携带 的所述终端移动速度信息进行分类; 或, 用于将所述无线链路失败指示消息或 切换 ^艮告消息中携带的所述目标小区的大小信息进行分类;
确定单元, 用于在所述信息分类单元对所述终端移动速度信息进行分类后, 确定所述分类后的终端移动速度信息的类别所对应的无线链路失败指示消息或 切换报告消息的数目, 并确定数目最多的无线链路失败指示消息或切换报告消 息所对应的终端移动速度信息的类别; 或, 用于在所述信息分类单元对所述目 标小区的大小信息进行分类后, 确定所述分类后的目标小区的大小信息的类别 所对应的无线链路失败指示消息或切换报告消息的数目, 并确定数目最多的无 线链路失败指示消息或切换报告消息所对应的目标小区的大小信息的类别; 或, 用于确定所述无线链路失败指示消息或切换报告消息中携带的所述目标小区的 大小信息的类别和所述终端移动速度信息的类别的组合类别, 确定所述组合类 别所对应的无线链路失败指示消息或切换报告消息的数目, 并确定数目最多的 无线链路失败指示消息或切换报告消息所对应的组合类别;
所述参数调整单元, 还用于在确定单元确定数目最多的无线链路失败指示 消息或切换报告消息所对应的终端移动速度信息的类别后, 根据所述数目最多 的无线链路失败指示消息或切换报告消息所对应的终端移动速度信息的类别调 整移动性控制参数; 或, 还用于在确定单元确定数目最多的无线链路失败指示 消息或切换报告消息所对应的目标小区的大小信息的类别, 根据所述数目最多 的无线链路失败指示消息或切换报告消息所对应的目标小区的大小信息的类别 调整移动性控制参数; 或, 还用于在确定单元确定数目最多的无线链路失败指 示消息或切换报告消息所对应的组合类别, 根据所述数目最多的无线链路失败 指示消息或切换报告消息所对应的组合类别调整移动性控制参数;
所述第三发送单元, 还用于将所述参数调整单元调整后的移动性控制参数 发送给所述终端。
26、 一种控制参数的调整系统, 其特征在于, 包括: 终端, 第一基站, 第 二基站和第三基站;
所述终端从第一基站到第二基站切换失败, 或, 所述终端从第一基站到第 二基站的切换成功并且所述终端与第二基站建立的无线链路发生无线链路连接 失败时, 所述终端与第三基站重建无线链路, 所述终端发送上报消息给所述第 三基站, 所述上报消息中携带所述终端的速度信息和 /或所述目标小区的大小信 息;
所述第三基站接收所述终端发送的上报消息, 并且接收所述终端发送的所 述目标小区的标识或源小区的标识后, 根据所述目标小区的标识或源小区的标 识发送无线链路失败指示消息给所述第二基站或第一基站, 所述无线链路失败 指示消息中携带所述终端的移动速度信息和 /或所述目标小区的大小信息 ; 所述第二基站接收第三基站发送的无线链路失败指示消息后, 根据源小区 的标识发送切换报告消息给第一基站, 所述切换报告消息中携带所述终端的移 动速度信息和 /或所述目标小区的大小信息;
所述第一基站接收第三基站发送的无线链路失败指示消息或第二基站发送 的切换报告消息, 所述无线链路失败指示消息或切换报告消息中携带终端的移 动速度信息和 /或目标小区的大小信息;
所述第一基站根据所述终端的移动速度信息和 /或所述目标小区的大小信息 调整移动性控制参数, 并发送所述调整后的移动性控制参数给终端。
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