WO2012100669A1 - 一种参数处理方法及基站 - Google Patents

一种参数处理方法及基站 Download PDF

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Publication number
WO2012100669A1
WO2012100669A1 PCT/CN2012/070111 CN2012070111W WO2012100669A1 WO 2012100669 A1 WO2012100669 A1 WO 2012100669A1 CN 2012070111 W CN2012070111 W CN 2012070111W WO 2012100669 A1 WO2012100669 A1 WO 2012100669A1
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Prior art keywords
base station
value
enb
signal strength
time value
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PCT/CN2012/070111
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English (en)
French (fr)
Inventor
黎晖
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华为技术有限公司
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Publication of WO2012100669A1 publication Critical patent/WO2012100669A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18Negotiating wireless communication parameters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/19Connection re-establishment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08Access point devices

Definitions

  • the present invention claims the priority of the Chinese patent application filed on January 27, 2011 by the Chinese Patent Office, the application number is 201110029900.5, and the invention name is "a parameter processing method and a base station", the entire contents thereof This is incorporated herein by reference.
  • the present invention relates to the field of wireless communication technologies, and in particular, to a parameter processing method and a base station.
  • MRO Mobility Robust Optimization
  • LTE Long Term Evolution
  • the serving base station evaluates whether the mobility parameter configuration is appropriate through the switching of the abnormal scenario, and automatically adjusts the mobility parameter of the base station based on the handover process, thereby improving the handover success rate and reducing unnecessary handover.
  • the sexual parameters include at least one of Hysteresis, Time To Triger, Report Interval, Report Threshold, and Cell Indivisual Offset.
  • the original serving base station After receiving the reconfiguration notification sent by the neighboring base station from the X2 port, the original serving base station infers that the UE has an RLF (Radio Link Failure) in the serving cell of the local station.
  • the reason for the RLF is: The UE does not trigger the measurement report in time. If the base station sends the handover command to the UE too late, and the base station does not trigger the handover in time, the mobility parameter is adjusted to reduce the handover time interval, that is, the direction adjustment of the reporting time interval is reduced.
  • the reason for the RLF is not caused by the excessive time interval of the reported measurement report, which causes mis-adjustment of some parameters that appear in the normal scene.
  • a parameter processing method including:
  • the mobility parameter is not adjusted, and the first threshold range Thd_eNB includes the time value of the normal reception measurement report and the handover The difference statistics of the time value of the command.
  • a base station including:
  • Receiving unit configured to receive a reconfiguration notification sent by a neighboring base station or a radio link failure RLF notification;
  • An acquiring unit configured to: after the receiving unit receives the reconfiguration notification or the RLF notification, obtain a time difference T_eNB_HO of a time value of a last received measurement report and a time value of a handover command;
  • a processing unit configured to: if the T_eNB_HO acquired by the acquiring unit is greater than a preset first threshold range Thd_eNB, the mobility parameter is not adjusted, and the first threshold range Thd_eNB includes normal receiving The difference statistical value of the time value of the measurement report and the time value of the delivery switching command.
  • the serving base station After receiving the reestablishment notification or the radio link failure RLF notification sent by the neighboring base station, the serving base station sends the radio resource control RRC signaling to the UE, requesting the UE to report the serving cell and the neighboring cell detected when the radio link fails recently. a signal strength value; the serving base station receives a signal strength value of the serving cell and the neighboring cell detected by the UE when the latest radio link failure is reported;
  • the serving base station acquires a signal strength difference of the signal strength of the serving cell and the neighboring cell, and if the signal strength difference is less than the second threshold range, the mobility parameter is not adjusted, and the second threshold range includes A statistical value of the difference between the signal strength value of the normal serving cell and the strength of the adjacent cell signal strength value is taken.
  • another base station including: a transmission module, configured to receive a reconfiguration notification sent by a neighboring base station or a radio link failure
  • the RRC signaling is sent to the UE, and the signal strength value of the serving cell and the neighboring cell detected by the UE when the radio link fails last time is requested, and is used to receive the reported value of the UE.
  • An acquiring module configured to acquire a signal strength difference between the serving cell signal strength value and a neighboring cell signal strength value received by the transmission module;
  • the processing module if the signal strength difference obtained by the acquiring module is less than the second threshold range, does not adjust the mobility parameter, where the second threshold range includes taking a signal strength value of a normal serving cell and a signal strength of the neighboring cell The statistical value of the intensity difference of the value.
  • the serving base station after receiving the reconfiguration notification or the RLF notification sent by the neighboring base station, the serving base station does not directly adjust the mobility parameter to the RLF direction, but determines whether the UE generates the RLF. Because the time interval reported by the UE is too large, the serving base station can receive the reestablishment notification or RLF notification sent by the neighboring base station, which is caused by the non-initiated reporting of the UE. The situation is removed. When the T eNB HO becomes large due to calculation and transmission on the network side, the mobility parameters are no longer adjusted, so that the accuracy of the mobility robust technology can be improved, which is beneficial to the optimization of the mobility parameters of the entire network. .
  • FIG. 1 is a schematic diagram of a scenario in which a handover time interval is too large in the prior art
  • FIG. 2 is a schematic flow chart of an embodiment of a parameter processing method according to the present invention.
  • FIG. 3 is a schematic flow chart of another embodiment of a parameter processing method according to the present invention.
  • FIG. 3 is a schematic flowchart of another embodiment of a method for processing a parameter according to the present invention
  • FIG. 4 is a schematic structural diagram of an embodiment of a base station according to the present invention
  • FIG. 5 is another schematic structural diagram of an embodiment of a base station according to the present invention.
  • the UE reports the measurement report ⁇ the base station triggers the handover ⁇ the UE and the network side perform the handover.
  • the configuration of the mobility parameter determines whether the time interval from the detection of the current serving cell RLF to the reporting of the measurement report to the current serving base station is appropriate.
  • the switching time interval is too large, the switching time interval is too small, and the ping-pong switching.
  • the switching time interval is too large, which is the difference of the serving cell signal detected by the UE, and can detect the ratio.
  • the neighboring cell with good signal quality of the serving cell reports it to the serving base station, but the serving base station does not trigger the handover in time, causing the handover time interval to be too large, and the mobility parameter is adjusted to reduce the handover time interval, that is, reduce the reporting measurement.
  • the direction of the reporting interval is adjusted.
  • the existing mobility parameter adjustment process is shown in Figure 1, including:
  • the UE generates an RLF in the serving cell because the radio channel environment is deteriorated and the handover command sent by the serving base station is not received.
  • the UE sends an RRC (Radio Resource Control) reconfiguration notification or an RLF (Radio Link Failure) notification to the neighboring base station that is stronger than the current serving base station, and triggers the reestablishment process.
  • RRC Radio Resource Control
  • RLF Radio Link Failure
  • the neighboring base station After receiving the RRC reestablishment notification or the RLF notification, the neighboring base station sends a reestablishment notification to the original serving base station from the X2 interface to notify the reestablishment event.
  • the original serving base station After receiving the reconfiguration notification of the X2 interface, the original serving base station infers that the UE generates an RLF in the serving cell of the serving base station, and the UE does not trigger the measurement report in time, causing the base station to send the handover command to the UE too late, and the base station does not trigger the handover in time. And causing, according to the basis, the mobility parameter is adjusted to reduce the direction in which the UE reports the time interval, so that the UE reports the measurement report in time.
  • the reason for the RLF is not caused by the excessive time interval of the reported measurement report, which causes mis-adjustment of some parameters that appear in the normal scene.
  • FIG. 2 is an embodiment of a parameter processing method according to the present invention, including:
  • the serving base station After receiving the reestablishment notification or the radio link failure RLF notification sent by the neighboring base station, the serving base station obtains the time difference T_eNB_HO of the time value of the latest received measurement report and the time value of the handover command.
  • the time difference T_eNB_HO is greater than a preset first threshold range Thd_eNB, the mobility parameter is not adjusted, and the first threshold range Thd_eNB includes a time value of normal receiving measurement report and a handover handover. The statistical value of the difference in the time value of the command.
  • the serving base station after receiving the reconfiguration notification or the RLF notification sent by the neighboring base station, the serving base station does not directly adjust the mobility parameter to the RLF direction, so that the UE reports the measurement report in time. Except for the case that the service base station receives the reestablishment notification or the RLF notification due to the large interval of the UE reporting the measurement report, the other conditions are excluded.
  • the T-eNB_HO caused by the calculation and transmission on the network side becomes large, the mobility parameter is no longer adjusted, so that the accuracy of the mobility robust technology can be improved, and the mobility parameter of the whole network is facilitated. Optimization.
  • the time difference T eNB HO of the time value of the last received measurement report and the time value of the delivery handover command is obtained by the serving base station, and may include:
  • the serving base station obtains a time value T_Rprt for receiving the measurement 4 report, and the T_RPrt includes the time value of the measurement report triggered by the UE reporting the coverage reason.
  • the serving base station obtains the time value T_Cmd of the handover command, and the T_Cmd includes the time value for sending the handover command to the UE for the measurement report.
  • the serving base station obtains the time difference T_eNB_HO of the last received measurement report time value and the time of the handover command time according to T_RPrt and T_Cmd.
  • the time difference T eNB HO may be set to infinity.
  • FIG. 3 is a schematic diagram of another method for processing a parameter according to the present invention, including:
  • the serving base station After receiving the reconfiguration notification or the RLF notification sent by the neighboring base station, the serving base station acquires a time value T_RPrt of receiving the measurement 4 report, where the T_RPrt includes the measurement report triggered by the last time the UE reported the coverage reason. Time value.
  • the serving base station acquires a time value T_Cmd of the handover command, where the T_Cmd includes a time value for sending a handover command to the UE for the foregoing measurement report.
  • T_RPrt and T_Cmd obtain the time difference between the time of the last received measurement report and the time value of the handover command.
  • T_eNB_HO, T eNB HO T_Cmd - T_Rprt.
  • the time difference T eNB HO may be set to infinity.
  • step S303 Compare the time difference T_eNB_HO obtained in step S303 with a preset first threshold range Thd_eNB. If the T-eNB-HO is greater than the Thd-eNB, that is, the RLF of the UE is not caused by the excessive time interval reported by the UE, step S305 is performed, otherwise, S306 is performed.
  • the first threshold range Thd_eNB includes a statistical value of the time difference value of the normal received measurement report time value and the issued handover command time value.
  • the UE reporting time interval refers to a time interval from the UE detecting that the current serving cell generates an RLF to report the measurement report to the current serving base station.
  • the serving base station does not adjust the mobility parameter.
  • the serving base station adjusts the mobility parameter to the reduced RLF direction, and the direction of the reduced RLF can be directly derived from the protocol event formula used in the measurement report.
  • FIG. 3a is an embodiment of a parameter processing method according to the present invention, including:
  • the serving base station After receiving the reconfiguration notification or the radio link failure RLF notification sent by the neighboring base station, the serving base station sends the radio resource control RRC signaling to the UE, and requests the UE to report the serving cell and phase detected when the radio link fails recently.
  • the signal strength value of the neighboring cell After receiving the reconfiguration notification or the radio link failure RLF notification sent by the neighboring base station, the serving base station sends the radio resource control RRC signaling to the UE, and requests the UE to report the serving cell and phase detected when the radio link fails recently. The signal strength value of the neighboring cell.
  • the serving base station receives a signal strength value of the serving cell and the neighboring cell detected by the UE when the last time the radio link fails to be reported.
  • the serving base station obtains a signal strength difference between the signal strength of the serving cell and the neighboring cell. If the signal strength difference is less than the second threshold, the mobility parameter is not adjusted, and the second threshold range includes the normal service. A statistical value of the strength difference between the signal strength value of the cell and the signal strength value of the neighboring cell.
  • the serving base station determines whether the quality data of the neighboring cell and the mobility parameter configured for the UE meet the first In a condition, the first condition may be a protocol event formula of the section 5.5.4 of the 36.331 protocol. If the first condition is met, the serving base station does not adjust the mobility parameter.
  • the serving base station determines the quality data of the neighboring cell and Whether the mobility parameter configured for the UE satisfies the protocol event formula, and if the protocol event formula is satisfied, the serving base station does not adjust the mobility parameter.
  • the serving base station after receiving the reconfiguration notification or the RLF notification sent by the neighboring base station, the serving base station does not directly adjust the mobility parameter to the direction of reducing the handover time interval, but sends the RRC to the UE. Signaling, requesting signal quality data of the serving cell and the neighboring cell detected by the UE on the last RLF; and then determining whether the mobility parameter needs to be adjusted according to the signal quality data of the serving cell and the neighboring cell, so that Judging the relevant data to determine whether to adjust the mobility parameter can reduce the misadjustment of the mobility parameter, improve the accuracy of the mobility robust technology, and facilitate the optimization of the mobility parameter of the whole network. Further, the above method further includes:
  • the serving base station obtains the signal strength difference of the signal strength of the serving cell and the neighboring cell. If the signal strength difference is greater than the second threshold range, the mobility parameter is adjusted to reduce the RLF direction.
  • This direction of decreasing the RLF can be derived directly from the protocol event formula used in the measurement report.
  • the first threshold range and the second threshold range refer to that after obtaining the statistical value of the handover time difference, the person skilled in the art according to the actual working environment and relevant experience, the fixed statistical value is appropriate. Zoom in or out to meet the actual application scenario.
  • FIG. 4 is a schematic diagram of an embodiment of a base station according to the present invention.
  • the base station 40 includes:
  • the receiving unit 401 is configured to receive a reestablishment notification or a radio link failure RLF notification sent by the neighboring base station.
  • the obtaining unit 402 is configured to obtain, after receiving the reconfiguration notification or the RLF notification, the time difference T_eNB_HO of the time value of the latest received measurement report and the time value of the handover command.
  • the processing unit 403 is configured to: if the T_eNB_HO acquired by the obtaining unit 402 is greater than a preset first threshold range Thd_eNB, the mobility parameter is not adjusted, and the first threshold range Thd_eNB includes a normal receiving measurement. The difference between the reported time value and the time value of the delivery switch command.
  • the serving base station after receiving the reconfiguration notification or the RLF notification sent by the neighboring base station, the serving base station does not directly adjust the mobility parameter to the RLF direction, but determines whether the RLF of the UE is reported by the UE.
  • the time interval is too large to avoid misadjustment of the mobility parameters.
  • the T eNB HO becomes large due to calculation and transmission on the network side, the mobility parameters are no longer adjusted, so that the accuracy of the mobility robust technology can be improved, which is beneficial to the optimization of the mobility parameters of the entire network. .
  • processing unit 403 is further configured to adjust the mobility parameter to the reduced RLF direction if the T_eNB_HO is less than the preset first threshold range Thd_eNB.
  • the obtaining unit 402 is further configured to:
  • the receiving measurement report is acquired.
  • the time value T_Rprt, and the time value T_Cmd for obtaining the handover command, the T_RPrt includes the time value of the measurement report triggered by the last time the UE reported the coverage reason, and the T_Cmd includes the measurement report.
  • the time value of the handover command is sent to the UE; and the time difference T_eNB_HO of the latest received measurement report time value and the release handover command time value is obtained according to the obtained T_RPrt and T_Cmd.
  • the serving base station after receiving the reconfiguration notification or the RLF notification sent by the neighboring base station, the serving base station does not directly adjust the mobility parameter to the direction of reducing the handover time interval, but sends the RRC signaling to the UE. And requesting the UE to report the signal quality data of the serving cell and the neighboring cell detected by the last RLF; and then determining, according to the signal quality data of the serving cell and the neighboring cell, whether the mobility parameter needs to be adjusted, such that the related data is Judging to determine whether to adjust the mobility parameter can reduce the misadjustment of the mobility parameter, improve the accuracy of the mobility robust technology, and facilitate the optimization of the mobility parameter of the whole network.
  • FIG. 5 is a schematic diagram of another embodiment of a base station according to the present invention.
  • the base station 50 includes:
  • the transmitting module 501 is configured to: after receiving the reconfiguration notification or the radio link failure RLF notification sent by the neighboring base station, send the radio resource control RRC signaling to the UE, requesting the UE to report the serving cell detected when the radio link fails recently. And a signal strength value of the neighboring cell, and is used to receive a signal strength value of the serving cell and the neighboring cell detected when the last time the radio link fails to be reported by the UE.
  • the obtaining module 502 is configured to obtain a signal strength difference between the serving cell signal strength value and the neighboring cell signal strength value received by the transmission module 501.
  • processing module 503 is further configured to adjust the mobility parameter to the reduced RLF direction if the signal strength difference is greater than the second threshold range.
  • the serving base station after receiving the reconfiguration notification or the RLF notification sent by the neighboring base station, the serving base station does not directly adjust the mobility parameter to the direction of reducing the handover time interval, but sends the RRC signaling to the UE. And requesting the UE to report the signal quality data of the serving cell and the neighboring cell detected by the last RLF; and then determining, according to the signal quality data of the serving cell and the neighboring cell, whether the mobility parameter needs to be adjusted, so The judgment of the relevant data to determine whether to adjust the mobility parameter can reduce the misadjustment of the mobility parameter, improve the accuracy of the mobility robust technology, and facilitate the optimization of the mobility parameter of the whole network.
  • the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed.
  • the foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.
  • each unit included is only divided according to functional logic, but is not limited to the foregoing division, as long as the corresponding function can be implemented;
  • the specific names are also for convenience of distinguishing from each other and are not intended to limit the scope of the present invention.
  • the storage medium may be a read only memory, a magnetic disk or an optical disk or the like.

Description

一种参数处理方法及基站 本申请要求于 2011 年 1 月 27 日提交中国专利局、 申请号为 201110029900.5、发明名称为"一种参数处理方法及基站"的中国专利申请的 优先权, 其全部内容通过引用结合在本申请中。 技术领域 本发明涉及无线通讯技术领域, 具体涉及一种参数处理方法及基站。
背景技术
MRO ( Mobility Robust Optimization 移动性鲁棒性优化 )是 LTE ( Long Term Evolution, 长期演进 )协议支持的移动性鲁棒性优化技 术。 服务基站 (eNodeB ) 通过异常场景的切换, 评估移动性参数配 置是否合适, 并以该切换过程为依据自动调整本基站的移动性参数, 从而提高切换成功率和减少不必要的切换,所述移动性参数包括幅度 迟滞(Hysteresis)、 时间迟滞(Time To Triger)、 上 4艮时间间隔(Report Interval)、 上报门限(Report Threshold)和小区偏置 (Cell Indivisual offset)中至少一种。
原服务基站收到相邻基站从 X2 口发送的重建通知后, 推断 UE 在本站的服务小区发生 RLF ( Radio Link Failure , 无线链路失败) , 该 RLF产生原因为: UE没有及时触发测量报告, 导致基站向 UE发 送切换命令过晚, 且基站没有及时触发切换所引起, 通过将移动性参 数向减小切换时间间隔调整,即减小上报测量报告时间间隔的方向调 整。
由于 RLF产生原因并非全部是因为上报测量报告时间间隔过大 引起的, 因此造成将正常的场景下出现的部分参数误调整。
发明内容 本发明提供了一种参数处理方法及基站, 防止出现参数误调整。 一方面, 提供了一种参数处理方法, 包括:
接收到相邻基站发送的重建通知或无线链路失败 RLF通知后, 获取最近一次的接收测量报告的时间值和下发切换命令的时间值的 时间差值 T— eNB— HO;
若所述时间差值 T— eNB— HO 大于预设的第一门限范围 Thd_eNB , 则不对移动性参数进行调整, 所述第一门限范围 Thd— eNB 包括正常接收测量报告的时间值和下发切换命令的时间值的差值统 计值。
一方面, 提供了一种基站, 包括:
接收单元: 用于接收相邻基站发送的重建通知或无线链路失败 RLF通知;
获取单元,用于所述接收单元接收所述重建通知或 RLF通知后, 获取最近一次的接收测量报告的时间值和下发切换命令的时间值之 的时间差值 T— eNB— HO;
处理单元, 用于若所述获取单元获取的 T— eNB— HO大于预设的 第一门限范围 Thd— eNB , 则不对移动性参数进行调整, 所述第一门 限范围 Thd— eNB 包括取正常接收测量报告的时间值和下发切换命令 的时间值的差值统计值。
一方面, 提供了另一种方法, 包括:
服务基站接收到相邻基站发送的重建通知或无线链路失败 RLF 通知后, 向 UE发送无线资源控制 RRC信令, 请求 UE上报最近一 次发生无线链路失败时检测到的服务小区和相邻小区的信号强度值; 所述服务基站接收所述 UE 上报的最近一次发生无线链路失败 时检测到的服务小区和相邻小区的信号强度值;
所述服务基站获取所述服务小区和相邻小区的信号强度的信号 强度差值, 若所述信号强度差值小于第二门限范围, 则不对移动性参 数进行调整,所述第二门限范围包括取正常的服务小区的信号强度值 与相邻小区信号强度值的强度差值的统计值。
一方面, 提供了另一种基站, 包括: 传输模块,用于接收到相邻基站发送的重建通知或无线链路失败
RLF通知后, 向 UE发送无线资源控制 RRC信令, 请求 UE上 ^艮最 近一次发生无线链路失败时检测到的服务小区和相邻小区的信号强 度值, 并且用于接收所述 UE上报的最近一次发生无线链路失败时检 测到的服务小区和相邻小区的信号强度值;
获取模块,用于获取所述传输模块接收的所述服务小区信号强度 值和相邻小区信号强度值的信号强度差值;
处理模块,若所述获取模块获取的信号强度差值小于第二门限范 围, 则不对移动性参数进行调整, 所述第二门限范围包括取正常的服 务小区的信号强度值与相邻小区信号强度值的强度差值的统计值。
本发明实施例提供的参数处理方法及基站,服务基站接收到相邻 基站发送的重建通知或 RLF通知后, 并不直接将移动性参数向减小 RLF方向进行调整,而是判断 UE发生 RLF是否因 UE上报的时间间 隔过大所致, 这样, 能够将非因 UE上报不及时, 即非因 UE上报测 量报告的时间间隔较大导致的服务基站接收到相邻基站发送的重建 通知或 RLF 通知的情况剔除。 在因网络侧的计算、 传输等导致的 T eNB HO 变大的情况下, 不再对移动性参数进行调整, 从而能够 提高移动性鲁棒技术的准确度, 有利于全网移动性参数的优化。
附图说明 为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对 实施例或现有技术描述中所需要使用的附图作简单地介绍, 显而易见地, 下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员 来讲, 在不付出创造性劳动的前提下, 还可以根据这些附图获得其他的附 图。
图 1为现有技术中切换时间间隔过大的场景示意图;
图 2为本发明参数处理方法实施例的流程示意图;
图 3为本发明另一参数处理方法实施例的流程示意图;
图 3a为本发明又一参数处理方法实施例的流程示意图; 图 4为本发明基站实施例的结构示意图; 图 5为本发明基站实施例的另一结构示意图。
具体实施方式 下面将结合本发明实施例中的附图,对本发明实施例中的技术方 案进行清楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明一部 分实施例, 而不是全部的实施例。 基于本发明中的实施例, 本领域普 通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例, 都属于本发明保护的范围。
UE上报测量报告→基站触发切换→UE和网络侧执行切换。
移动性参数的配置决定 UE从检测到当前服务小区 RLF到向当 前服务基站上报测量报告的时间间隔是否合适。
MRO所关注的异常场景的切换主要有三类:切换时间间隔过大、 切换时间间隔过小和乒乓切换, 其中, 切换时间间隔过大, 是 UE检 测到的服务小区信号差,并能够检测到比该服务小区信号质量好的相 邻小区, 将其上报给服务基站, 而服务基站却没有及时触发切换, 导 致切换时间间隔过大, 移动性参数向减小切换时间间隔调整, 即减小 上报测量报告时间间隔的方向调整,现有的移动性参数调整过程如图 1所示, 包括:
5101、 由于无线信道环境恶化, 且又迟迟没有收到服务基站下 发的切换命令, UE在服务小区发生 RLF。
5102、 UE向信号比当前服务基站强的相邻基站发送 RRC( Radio Resource Control, 无线资源控制协议 ) 重建通知或 RLF ( Radio Link Failure, 无线链路失败) 通知, 触发重建流程。
5103、 相邻基站收到 RRC重建通知或 RLF通知后, 居重建通 知或 RLF通知从 X2口向原服务基站发送重建通知,通知该重建事件。
5104、 原服务基站收到 X2口的重建通知后, 即推断 UE在本服 务基站的服务小区发生 RLF , UE没有及时触发测量报告, 导致基站向 UE发送切换命令过晚, 且基站没有及时触发切换所引起, 并以此为依 据, 将移动性参数向减小 UE上报时间间隔的方向进行调整, 以使得 UE及时上报测量报告。 但是, 由于 RLF产生原因并非全部是因为上报测量报告时间间 隔过大引起的, 因此造成将正常的场景下出现的部分参数误调整。
图 2为本发明一种参数处理方法的实施例, 包括:
5201、 服务基站接收到相邻基站发送的重建通知或无线链路失 败 RLF通知后,获取最近一次的接收测量报告的时间值和下发切换命 令的时间值的时间差值 T— eNB— HO。
5202、 若该时间差值 T— eNB— HO 大于预设的第一门限范围 Thd_eNB , 则不对移动性参数进行调整, 该第一门限范围 Thd— eNB 包括正常接收测量报告的时间值和下发切换命令的时间值的差值的 统计值。
本发明实施例提供的参数处理方法,服务基站接收到相邻基站发 送的重建通知或 RLF通知后, 并不直接将移动性参数向减小 RLF方 向进行调整, 以使得 UE及时上报测量报告, 将除因 UE上报测量报 告的时间间隔较大所导致服务基站接收到重建通知或 RLF通知的其 他情况剔除。 使因网络侧的计算、 传输等导致的 T— eNB— HO变大的 情况下, 不再对移动性参数进行调整, 从而能够提高移动性鲁棒技术 的准确度, 有利于全网移动性参数的优化。
具体的, 上述步骤 S201、 服务基站获取最近一次的接收测量报 告的时间值和下发切换命令的时间值的时间差值 T eNB HO, 可以 包括:
服务基站获取接收测量4艮告的时间值 T— Rprt, 该 T— Rprt包括最 近一次接收到 UE上报覆盖原因触发的测量报告的时间值。
服务基站获取下发切换命令的时间值 T— Cmd,该 T— Cmd包括针 对该测量报告, 向 UE下发切换命令的时间值。
服务基站根据 T— Rprt和 T— Cmd得到最近一次的接收测量报告时 间值和下发切换命令时间值的时间差值 T— eNB— HO。
在此, 若最近一次接收到 UE上报覆盖原因触发的测量报告后, 服务基站未向该 UE 下发相应的切换命令, 则可以设定时间差值 T eNB HO为无穷大。
此外, 若 T— eNB— HO小于预设的第一门限范围 Thd— eNB , 则服 务基站则对移动性参数向减小 RLF方向进行调整。 图 3为本发明另一种参数处理方法的实施例, 包括:
5301、服务基站接收到相邻基站发送的重建通知或 RLF通知后, 获取接收测量 4艮告的时间值 T— Rprt, 该 T— Rprt包括最近一次接收到 UE上报覆盖原因所触发的测量报告的时间值。
5302、 服务基站获取下发切换命令的时间值 T— Cmd, 该 T— Cmd 包括针对上述测量报告, 向 UE下发切换命令的时间值。
5303、服务基站 居 T— Rprt和 T— Cmd得到最近一次的接收测量 报告时间值和下发切换命令时间值的时间差值 T— eNB— HO, T eNB HO = T— Cmd - T— Rprt。
在此, 若最近一次接收到 UE上报覆盖原因触发的测量报告后, 服务基站未向该 UE 下发相应的切换命令, 则可以设定时间差值 T eNB HO为无穷大。
5304、将步骤 S303得到的时间差值 T— eNB— HO和预设的第一门 限范围 Thd— eNB进行比较判断。 若 T— eNB— HO 大于 Thd— eNB , 即 UE发生 RLF是并非因 UE上报的时间间隔过大所致,执行步骤 S305, 否则执行 S306。
本步骤 S304中,第一门限范围 Thd— eNB包括取正常的接收测量 报告时间值和下发切换命令时间值的时间差值的统计值。
此外, 所谓 UE上报时间间隔, 是指从 UE检测到当前服务小区 发生 RLF到向当前服务基站上报测量报告的时间间隔。
5305、 服务基站不对移动性参数进行调整。
5306、 服务基站将移动性参数向减小 RLF方向进行调整, 该减 小 RLF 的方向可以直接从测量报告所使用的协议事件公式中推算得 出。
本发明实施例提供的参数处理方法,服务基站接收到相邻基站发 送的重建通知或 RLF通知后, 并不直接将移动性参数向减小 RLF方 向进行调整,而是判断 UE发生 RLF是否因 UE上 ^艮的时间间隔过大 所致, 避免对移动性参数误调整。 在因网络侧的计算、 传输等导致的 T eNB HO 变大的情况下, 不再对移动性参数进行调整, 从而能够 提高移动性鲁棒技术的准确度, 有利于全网移动性参数的优化。 图 3a为本发明一种参数处理方法的实施例, 包括:
S301a、 服务基站接收到相邻基站发送的重建通知或无线链路失 败 RLF通知后, 向 UE发送无线资源控制 RRC信令, 请求 UE上报 最近一次发生无线链路失败时检测到的服务小区和相邻小区的信号 强度值。
S302a、 服务基站接收所述 UE上报的最近一次发生无线链路失 败时检测到的服务小区和相邻小区的信号强度值。
S303a、 服务基站获取服务小区和相邻小区的信号强度的信号强 度差值, 若该信号强度差值小于第二门限范围, 则不对移动性参数进 行调整,该第二门限范围包括取正常的服务小区的信号强度值与相邻 小区信号强度值的强度差值统计值。
若收到相邻小区的质量数据,且该相邻小区的质量数据达到接入 最低电平的经验值,则服务基站判断该相邻小区的质量数据和配置给 UE的移动性参数是否满足第一条件,该第一条件可以为 36.331协议 5.5.4 章节的协议事件公式, 如果满足第一条件, 则服务基站不调整 移动性参数。
例如, 若没有收到相邻小区的质量数据, 则服务基站不调整移动 性参数; 若收到相邻小区的质量数据,但该相邻小区的质量数据未达 到接入最低电平的经验值, 则服务基站不调整移动性参数; 若收到相 邻小区的质量数据,且该相邻小区的质量数据达到接入最低电平的经 验值, 则服务基站判断该相邻小区的质量数据和配置给 UE的移动性 参数是否满足协议事件公式, 如果满足协议事件公式, 则服务基站不 调整所述移动性参数。
本发明实施例提供的参数处理方法,服务基站在收到相邻基站发 送的重建通知或 RLF通知后,并不直接将移动性参数向减小切换时间 间隔的方向调整, 而是向 UE发送 RRC信令, 请求 UE上^艮最近一 次 RLF 时检测到的服务小区和相邻小区的信号质量数据; 然后根据 该服务小区和相邻小区的信号质量数据确定是否需要调整移动性参 数,这样, 通过对相关数据的判断来确定是否调整移动性参数, 能够 减少对移动性参数的误调整, 提高移动性鲁棒技术的准确度, 有利于 全网移动性参数的优化。 进一步, 上述方法还包括:
服务基站获取服务小区和相邻小区的信号强度的信号强度差值, 若信号强度差值大于第二门限范围, 则对移动性参数向减小 RLF方 向进行调整。
该减小 RLF的方向可以直接从测量报告所使用的协议事件公式 中推算得出。
需要说明的是, 上述实施例中第一门限范围和第二门限范围,是 指得到切换时间差值的统计值后,本领域技术人员根据实际的工作环 境和相关经验, 将固定的统计值适当放大或缩小, 以满足实际的应用 场景。
图 4为本发明一种基站的实施例, 该基站 40包括:
接收单元 401 : 用于接收相邻基站发送的重建通知或无线链路失 败 RLF通知。
获取单元 402, 用于接收单元 401接收重建通知或 RLF通知后, 获取最近一次的接收测量报告的时间值和下发切换命令的时间值的 时间差值 T— eNB— HO。
处理单元 403, 用于若获取单元 402获取的 T— eNB— HO大于预 设的第一门限范围 Thd— eNB , 则不对移动性参数进行调整, 该第一 门限范围 Thd— eNB 包括取正常接收测量报告的时间值和下发切换命 令的时间值的差值统计值。
本发明实施例提供的基站,服务基站接收到相邻基站发送的重建 通知或 RLF通知后, 并不直接将移动性参数向减小 RLF方向进行调 整, 而是判断 UE发生 RLF是否因 UE上报的时间间隔过大所致, 避 免对移动性参数误调整。 在因网络侧的计算、 传输等导致的 T eNB HO 变大的情况下, 不再对移动性参数进行调整, 从而能够 提高移动性鲁棒技术的准确度, 有利于全网移动性参数的优化。
进一步, 处理单元 403还用于若 T— eNB— HO小于预设的第一门 限范围 Thd— eNB , 则对移动性参数向减小 RLF方向进行调整。
进一步, 获取单元 402还用于:
当接收单元 401接收重建通知或 RLF通知后,获取接收测量报告 的时间值 T— Rprt, 和获取下发切换命令的时间值 T— Cmd, 该 T— Rprt 包括最近一次接收到 UE上报覆盖原因触发的测量报告的时间值,该 T— Cmd 包括针对测量报告, 向 UE 下发切换命令的时间值; 根据获 取的 T— Rprt和 T— Cmd获取最近一次的接收测量报告时间值和下发切 换命令时间值的时间差值 T— eNB— HO。
本发明实施例提供的基站,服务基站在收到相邻基站发送的重建 通知或 RLF通知后,并不直接将移动性参数向减小切换时间间隔的方 向调整, 而是向 UE发送 RRC信令, 请求 UE上报最近一次 RLF时 检测到的服务小区和相邻小区的信号质量数据;然后根据该服务小区 和相邻小区的信号质量数据确定是否需要调整移动性参数,这样, 通 过对相关数据的判断来确定是否调整移动性参数,能够减少对移动性 参数的误调整, 提高移动性鲁棒技术的准确度, 有利于全网移动性参 数的优化。
图 5为本发明另一种基站的实施例, 该基站 50包括:
传输模块 501, 用于接收到相邻基站发送的重建通知或无线链路 失败 RLF通知后, 向 UE发送无线资源控制 RRC信令, 请求 UE上 报最近一次发生无线链路失败时检测到的服务小区和相邻小区的信 号强度值, 并且用于接收该 UE上报的最近一次发生无线链路失败 时检测到的服务小区和相邻小区的信号强度值。
获取模块 502, 用于获取传输模块 501接收的服务小区信号强度 值和相邻小区信号强度值的信号强度差值。
处理模块 503, 若获取模块 502获取的信号强度差值小于第二门 限范围, 则不对移动性参数进行调整, 该第二门限范围包括取正常的 服务小区的信号强度值与相邻小区信号强度值的强度差值的统计值。
进一步, 处理模块 503 还用于若信号强度差值大于第二门限范 围, 则对移动性参数向减小 RLF方向进行调整。
本发明实施例提供的基站,服务基站在收到相邻基站发送的重建 通知或 RLF通知后,并不直接将移动性参数向减小切换时间间隔的方 向调整, 而是向 UE发送 RRC信令, 请求 UE上报最近一次 RLF时 检测到的服务小区和相邻小区的信号质量数据;然后根据该服务小区 和相邻小区的信号质量数据确定是否需要调整移动性参数,这样, 通 过对相关数据的判断来确定是否调整移动性参数,能够减少对移动性 参数的误调整, 提高移动性鲁棒技术的准确度, 有利于全网移动性参 数的优化。
本领域普通技术人员可以理解:实现上述方法实施例的全部或部分步 骤可以通过程序指令相关的硬件来完成,前述的程序可以存储于一计算机 可读取存储介质中, 该程序在执行时, 执行包括上述方法实施例的步骤; 而前述的存储介质包括: ROM、 RAM, 磁碟或者光盘等各种可以存储程 序代码的介质。
值得注意的是, 上述用户设备和基站实施例中, 所包括的各个单元只 是按照功能逻辑进行划分的, 但并不局限于上述的划分, 只要能够实现相 应的功能即可; 另外, 各功能单元的具体名称也只是为了便于相互区分, 并不用于限制本发明的保护范围。
另外, 本领域普通技术人员可以理解实现上述各方法实施例中的全部 或部分步骤是可以通过程序来指令相关的硬件完成, 相应的程序可以存储 于一种计算机可读存储介质中, 上述提到的存储介质可以是只读存储器, 磁盘或光盘等。
以上所述, 仅为本发明较佳的具体实施方式, 但本发明的保护范围并 不局限于此, 任何熟悉本技术领域的技术人员在本发明实施例揭露的技术 范围内, 可轻易想到的变化或替换, 都应涵盖在本发明的保护范围之内。 因此, 本发明的保护范围应该以权利要求的保护范围为准。

Claims

权利要求
1、 一种参数处理方法, 其特征在于, 包括:
接收到相邻基站发送的重建通知或无线链路失败 RLF通知后,获 取最近一次的接收测量报告的时间值和下发切换命令的时间值的时 间差值 T— eNB— HO;
若所述时间差值 T— eNB— HO 大于预设的第一门限范围 Thd— eNB , 则不对移动性参数进行调整, 所述第一门限范围 Thd— eNB 包括正常接收测量报告的时间值和下发切换命令的时间值的差值统 计值。
2、 根据权利要求 1所述的方法, 其特征在于, 所述方法还包括: 若所述 T— eNB— HO小于预设的第一门限范围 Thd— eNB , 则对移 动性参数向减小 RLF方向进行调整。
3、 根据权利要求 1所述的方法, 其特征在于, 所述获取最近一 次的接收测量 告时间值和下发切换命令时间值的时间差值 T eNB HO包括:
获取接收测量 4艮告的时间值 T— Rprt, 所述 T— Rprt包括最近一次 接收到 UE上报覆盖原因触发测量报告的时间值;
获取下发切换命令的时间值 T— Cmd, 所述 T— Cmd包括针对所述 测量报告, 向所述 UE下发切换命令的时间值;
根据所述 T— Rprt和 T— Cmd获取最近一次的接收测量报告时间值 和下发切换命令时间值的时间差值 T— eNB— HO。
4、 一种基站, 其特征在于, 包括:
接收单元: 用于接收相邻基站发送的重建通知或无线链路失败 RLF通知;
获取单元, 用于所述接收单元接收所述重建通知或 RLF通知后, 获取最近一次的接收测量报告的时间值和下发切换命令的时间值的 时间差值 T— eNB— HO;
处理单元, 用于若所述获取单元获取的 T— eNB— HO大于预设的 第一门限范围 Thd— eNB , 则不对移动性参数进行调整, 所述第一门 限范围 Thd— eNB 包括取正常接收测量报告的时间值和下发切换命令 的时间值的差值的统计值。
5、 根据权利要求 4所述的基站, 其特征在于,
所述处理单元还用于若所述 T— eNB— HO小于预设的第一门限范 围 Thd— eNB, 则对移动性参数向减小 RLF方向进行调整。
6、 根据权利要求 4所述的基站, 其特征在于,
当所述接收单元接收所述重建通知或 RLF通知后,所述获取单元 还用于获取接收测量报告的时间值 T— Rprt, 和获取下发切换命令的 时间值 T— Cmd, 并且根据获取的所述 T— Rprt和所述 T— Cmd获取最 近一次的接收测量报告时间值和下发切换命令时间值的时间差值 T eNB HO;所述 T— Rprt包括最近一次接收到 UE上4艮覆盖原因触发 的测量 告的时间值, 所述 T— Cmd包括针对所述测量 告, 向所述 UE下发切换命令的时间值。
7、 一种参数处理方法, 其特征在于, 包括:
服务基站接收到相邻基站发送的重建通知或无线链路失败 RLF 通知后, 向 UE发送无线资源控制 RRC信令, 请求 UE上报最近一 次发生无线链路失败时检测到的服务小区和相邻小区的信号强度 值;
所述服务基站接收所述 UE上报的最近一次发生无线链路失败时 检测到的服务小区和相邻小区的信号强度值;
所述服务基站获取所述服务小区和相邻小区的信号强度的信号 强度差值, 若所述信号强度差值小于第二门限范围, 则不对移动性参 数进行调整,所述第二门限范围包括取正常的服务小区的信号强度值 与相邻小区信号强度值的强度差值的统计值。
8、 根据权利要求 7所述的方法, 其特征在于, 所述方法还包括: 若所述信号强度差值大于第二门限范围,则对移动性参数向减小 RLF方向进行调整。
9、 一种基站, 其特征在于, 包括:
传输单元,用于接收到相邻基站发送的重建通知或无线链路失败 RLF通知后, 向 UE发送无线资源控制 RRC信令, 请求 UE上报最 近一次发生无线链路失败时检测到的服务小区和相邻小区的信号强 度值, 并且用于接收所述 UE上报的最近一次发生无线链路失败时 检测到的服务小区和相邻小区的信号强度值;
获取单元,用于获取所述传输单元接收的所述服务小区信号强度 值和相邻小区信号强度值的信号强度差值;
处理单元,若所述获取单元获取的信号强度差值小于第二门限范 围, 则不对移动性参数进行调整, 所述第二门限范围包括取正常的服 务小区的信号强度值与相邻小区信号强度值的强度差值的统计值。
10、 根据权利要求 9所述的基站, 其特征在于, 所述处理单元还 用于若所述信号强度差值大于第二门限范围, 则对移动性参数向减小
RLF方向进行调整。
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