CN104185203B - A kind of method and apparatus for detecting pingpang handoff - Google Patents
A kind of method and apparatus for detecting pingpang handoff Download PDFInfo
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Abstract
本发明公开了一种检测乒乓切换的方法，基站获取终端切换时的切换信息，确定所述切换信息中所述终端在源小区的驻留时间小于预设的时间阈值时，进一步确定所述切换信息中源小区的参考信号接收功率RSRP值与目标小区的RSRP值之差小于所述信号迟滞量，和/或，所述切换信息中源小区的参考信号接收质量RSRQ值和目标小区的RSRQ值之差小于所述信号迟滞量时；或进一步确定所述切换信息中目标小区的切换门限值与源小区的切换门限值之差的绝对值小于预设的切换阈值时，确定所述终端的切换为乒乓切换。同时本发明还公开了一种检测乒乓切换的装置，可实现乒乓切换的自动检测、不易受外界因素的影响，检测准确率高。
The invention discloses a method for detecting ping-pong handover. A base station obtains handover information when a terminal is handover, and further determines the handover when the residence time of the terminal in the source cell in the handover information is less than a preset time threshold. The difference between the reference signal received power RSRP value of the source cell in the information and the RSRP value of the target cell is less than the signal delay amount, and/or, the reference signal received quality RSRQ value of the source cell and the RSRQ value of the target cell in the handover information When the difference is less than the signal delay; or when it is further determined in the handover information that the absolute value of the difference between the handover threshold of the target cell and the handover threshold of the source cell is less than the preset handover threshold, determine that the terminal The switch is a ping-pong switch. At the same time, the invention also discloses a device for detecting ping-pong switching, which can realize automatic detection of ping-pong switching, is not easily affected by external factors, and has high detection accuracy.
Description
技术领域technical field
本发明涉及通信切换技术，具体涉及一种检测乒乓切换的方法和装置。The invention relates to communication switching technology, in particular to a method and device for detecting ping-pong switching.
背景技术Background technique
移动通信系统中，将一定区域内由于两基站信号强度剧烈变化，终端在两个基站间来回切换的现象称为乒乓切换。乒乓切换产生了乒乓效应，令终端信号强度变低，严重影响通信双方的正常通话。In the mobile communication system, the phenomenon that the terminal switches back and forth between the two base stations due to the drastic change of the signal strength of the two base stations in a certain area is called ping-pong handover. The ping-pong switching produces a ping-pong effect, which reduces the signal strength of the terminal and seriously affects the normal communication between the two parties.
目前，长期演进(LTE，Long Term Evolution)网络的乒乓切换检测技术成为研究学者的重要课题。在LTE网络中，基站向相邻基站发送切换请求的同时，发送终端历史信息至所述相邻基站，其中，所述终端历史信息包括终端所驻留过的小区识别号(ID，IDentity)、小区类型以及驻留时间，当所述终端在两个基站的驻留时间均小于某一时间阈值时，则可确定所述终端发生了乒乓切换。At present, the ping-pong handover detection technology of the Long Term Evolution (LTE, Long Term Evolution) network has become an important topic for researchers. In the LTE network, when the base station sends a handover request to a neighboring base station, it also sends terminal history information to the neighboring base station, wherein the terminal history information includes the cell identification number (ID, IDentity) where the terminal has camped, cell type and dwell time, when the dwell time of the terminal at the two base stations is less than a certain time threshold, it can be determined that the terminal has undergone a ping-pong handover.
现有技术中虽然能够自动检测出乒乓切换，但是仅依靠上述时间阈值作为判定条件实属单一；况且所述时间阈值的取值与众多外界因素息息相关、如终端移动速度、移动方向、网络部署等，实际应用中对所述时间阈值的优化难度高；一旦所述时间阈值选取不恰当，将会严重影响正常的通信传输。Although the ping-pong handover can be automatically detected in the prior art, relying only on the above-mentioned time threshold as the judgment condition is single; moreover, the value of the time threshold is closely related to many external factors, such as terminal moving speed, moving direction, network deployment, etc. , it is very difficult to optimize the time threshold in practical applications; once the time threshold is selected inappropriately, normal communication transmission will be seriously affected.
发明内容Contents of the invention
有鉴于此，本发明的主要目的在于提供一种检测乒乓切换的方法和装置，实现简单、不易受外界因素影响、自动检测的准确度高。In view of this, the main purpose of the present invention is to provide a method and device for detecting ping-pong switching, which is simple to implement, not easily affected by external factors, and has high accuracy of automatic detection.
为达到上述目的，本发明的技术方案是这样实现的：In order to achieve the above object, technical solution of the present invention is achieved in that way:
本发明提供了一种检测乒乓切换的方法，所述方法包括：The invention provides a method for detecting ping-pong switching, the method comprising:
基站获取终端切换时的切换信息，确定所述切换信息中所述终端在源小区的驻留时间小于预设的时间阈值时，The base station acquires handover information when the terminal is handed over, and when determining that the residence time of the terminal in the source cell in the handover information is less than a preset time threshold,
进一步确定所述切换信息中源小区的参考信号接收功率RSRP值与目标小区的RSRP值之差小于所述信号迟滞量，和/或，所述切换信息中源小区的参考信号接收质量RSRQ值和目标小区的RSRQ值之差小于所述信号迟滞量时，确定所述终端的切换为乒乓切换；It is further determined that the difference between the reference signal received power RSRP value of the source cell in the handover information and the RSRP value of the target cell is less than the signal delay, and/or, the reference signal received quality RSRQ value of the source cell in the handover information and When the difference between the RSRQ values of the target cell is less than the signal delay amount, it is determined that the handover of the terminal is a ping-pong handover;
或进一步确定所述切换信息中目标小区的切换门限值与源小区的切换门限值之差的绝对值小于预设的切换阈值时，确定所述终端的切换为乒乓切换。Or when it is further determined that the absolute value of the difference between the handover threshold of the target cell and the handover threshold of the source cell in the handover information is smaller than a preset handover threshold, it is determined that the handover of the terminal is a ping-pong handover.
上述方案中，所述切换信息包括：终端在源小区的驻留时间、源小区的RSRP值和RSRQ值的至少一种、目标小区的RSRP值和RSRQ值的至少一种、和/或源小区的切换门限值及目标小区的切换门限值。In the above solution, the handover information includes: the residence time of the terminal in the source cell, at least one of the RSRP value and RSRQ value of the source cell, at least one of the RSRP value and RSRQ value of the target cell, and/or the source cell The handover threshold of the target cell and the handover threshold of the target cell.
上述方案中，所述基站获取终端切换时的切换信息，包括：In the above solution, the base station obtains handover information when the terminal is handed over, including:
源小区向目标小区发送携带有切换信息的切换请求消息，所述目标小区通过所述切换请求消息获取所述切换信息；The source cell sends a handover request message carrying handover information to the target cell, and the target cell obtains the handover information through the handover request message;
或者，所述终端将所述切换信息发送至所述基站。Or, the terminal sends the switching information to the base station.
上述方案中，所述确定所述切换信息中所述终端在源小区的驻留时间小于预设的时间阈值时，进一步确定所述切换信息中源小区的参考信号接收功率RSRP值与目标小区的RSRP值之差小于所述信号迟滞量，和/或，所述切换信息中源小区的参考信号接收质量RSRQ值和目标小区的RSRQ值之差小于所述信号迟滞量时；或进一步确定所述切换信息中目标小区的切换门限值与源小区的切换门限值之差的绝对值小于预设的切换阈值时，确定所述终端的切换为乒乓切换包括：In the above scheme, when the residence time of the terminal in the source cell in the determination of the handover information is less than a preset time threshold, further determine the RSRP value of the source cell in the handover information and the RSRP value of the target cell in the handover information. The difference between the RSRP value is less than the signal delay amount, and/or, the difference between the reference signal reception quality RSRQ value of the source cell and the RSRQ value of the target cell in the handover information is less than the signal delay amount; or it is further determined that the When the absolute value of the difference between the handover threshold of the target cell and the handover threshold of the source cell in the handover information is less than the preset handover threshold, determining that the handover of the terminal is a ping-pong handover includes:
确定所述终端在所述源小区的驻留时间小于预先设置的时间阈值，以及所述源小区的RSRP值与所述目标小区的RSRP值之差小于预先设置的信号迟滞量时，确定所述终端的切换为乒乓切换；When it is determined that the residence time of the terminal in the source cell is less than a preset time threshold, and the difference between the RSRP value of the source cell and the RSRP value of the target cell is less than a preset signal delay amount, determine the The switching of the terminal is a ping-pong switching;
或者，确定所述终端在所述源小区的驻留时间小于所述时间阈值，以及所述源小区的RSRQ值与所述目标小区的RSRQ值之差小于所述信号迟滞量时，确定所述终端的切换为乒乓切换；Or, when it is determined that the residence time of the terminal in the source cell is less than the time threshold, and the difference between the RSRQ value of the source cell and the RSRQ value of the target cell is less than the signal delay amount, determine the The switching of the terminal is a ping-pong switching;
或者，确定所述终端在所述源小区的驻留时间小于所述时间阈值，以及所述源小区的RSRP值与目标小区的RSRP值之差与所述源小区的RSRQ值和目标小区的RSRQ值之差均小于所述信号迟滞量时，确定所述终端的切换为乒乓切换；Or, it is determined that the residence time of the terminal in the source cell is less than the time threshold, and the difference between the RSRP value of the source cell and the RSRP value of the target cell is equal to the RSRQ value of the source cell and the RSRQ value of the target cell When the difference between the values is less than the signal hysteresis, it is determined that the switching of the terminal is a ping-pong switching;
或者，确定所述终端在所述源小区的驻留时间小于所述时间阈值，以及目标小区的切换门限值与源小区的切换门限值之差的绝对值小于预先设置的切换阈值时，确定所述终端的切换为乒乓切换。Or, when it is determined that the residence time of the terminal in the source cell is less than the time threshold, and the absolute value of the difference between the handover threshold of the target cell and the handover threshold of the source cell is less than a preset handover threshold, It is determined that the handover of the terminal is a ping-pong handover.
上述方案中，在终端切换之前，所述方法还包括：In the above solution, before the terminal switching, the method further includes:
所述终端统计所述终端在源小区的驻留时间、测量源小区的RSRP值和/或RSRQ值、目标小区的RSRP值和/或RSRQ值，和/或获取源小区的切换门限值及目标小区的切换门限值。The terminal counts the residence time of the terminal in the source cell, measures the RSRP value and/or RSRQ value of the source cell, the RSRP value and/or RSRQ value of the target cell, and/or acquires the handover threshold value and Handover threshold of the target cell.
本发明还提供了一种检测乒乓切换的装置，所述装置包括：获取单元及确定单元；其中，The present invention also provides a device for detecting ping-pong switching, the device includes: an acquisition unit and a determination unit; wherein,
所述获取单元，用于获取终端切换时的切换信息；The obtaining unit is used to obtain handover information when the terminal is handed over;
所述确定单元，用于确定所述切换信息中所述终端在源小区的驻留时间小于预设的时间阈值时，进一步确定所述切换信息中源小区的参考信号接收功率RSRP值与目标小区的RSRP值之差小于所述信号迟滞量，和/或，所述切换信息中源小区的参考信号接收质量RSRQ值和目标小区的RSRQ值之差小于所述信号迟滞量时，确定所述终端的切换为乒乓切换；或进一步确定所述切换信息中目标小区的切换门限值与源小区的切换门限值之差的绝对值小于预设的切换阈值时，确定所述终端的切换为乒乓切换。The determining unit is configured to determine that when the residence time of the terminal in the source cell in the handover information is less than a preset time threshold, further determine the reference signal received power RSRP value of the source cell in the handover information and the target cell When the difference between the RSRP value of the source cell and the RSRQ value of the target cell in the handover information is less than the signal delay amount, and/or, the terminal is determined to be The handover of the terminal is a ping-pong handover; or when it is further determined that the absolute value of the difference between the handover threshold value of the target cell and the handover threshold value of the source cell in the handover information is less than the preset handover threshold value, it is determined that the handover of the terminal is a ping-pong handover switch.
上述方案中，所述切换信息包括：终端在源小区的驻留时间、源小区的参考信号接收功率RSRP值和参考信号接收质量RSRQ值的至少一种、目标小区的RSRP值和RSRQ值的至少一种、和/或源小区的切换门限值及目标小区的切换门限值。In the above solution, the handover information includes: the residence time of the terminal in the source cell, at least one of the reference signal received power RSRP value and the reference signal received quality RSRQ value of the source cell, and at least one of the target cell's RSRP value and RSRQ value One, and/or the handover threshold of the source cell and the handover threshold of the target cell.
上述方案中，所述获取单元，进一步用于源小区向目标小区发送携带有切换信息的切换请求消息，通过所述切换请求消息获取所述切换信息；In the above solution, the obtaining unit is further used for the source cell to send a handover request message carrying handover information to the target cell, and obtain the handover information through the handover request message;
或者，接收终端发送的切换信息。Or, receive switching information sent by the terminal.
上述方案中，所述确定单元，进一步用于确定所述终端在所述源小区的驻留时间小于预先设置的时间阈值，以及所述源小区的RSRP值与所述目标小区的RSRP值之差小于预先设置的信号迟滞量时，确定所述终端的切换为乒乓切换；In the above scheme, the determining unit is further configured to determine that the residence time of the terminal in the source cell is less than a preset time threshold, and the difference between the RSRP value of the source cell and the RSRP value of the target cell When it is less than the preset signal hysteresis, it is determined that the switching of the terminal is a ping-pong switching;
或者，所述确定单元确定所述终端在所述源小区的驻留时间小于所述时间阈值，以及所述源小区的RSRQ值与所述目标小区的RSRQ值之差小于所述信号迟滞量时，确定所述终端的切换为乒乓切换；Or, when the determining unit determines that the residence time of the terminal in the source cell is less than the time threshold, and the difference between the RSRQ value of the source cell and the RSRQ value of the target cell is less than the signal delay amount , determining that the switching of the terminal is a ping-pong switching;
或者，所述确定单元确定所述终端在所述源小区的驻留时间小于所述时间阈值，以及所述源小区的RSRP值与目标小区的RSRP值之差和所述源小区的RSRQ值和目标小区的RSRQ值之差均小于所述信号迟滞量时，确定所述终端的切换为乒乓切换；Or, the determination unit determines that the residence time of the terminal in the source cell is less than the time threshold, and the difference between the RSRP value of the source cell and the RSRP value of the target cell and the RSRQ value of the source cell and When the difference between the RSRQ values of the target cell is less than the signal hysteresis, it is determined that the handover of the terminal is a ping-pong handover;
或者，所述确定单元确定所述终端在所述源小区的驻留时间小于所述时间阈值，且目标小区的切换门限值与源小区的切换门限值之差的绝对值小于预先设置的切换阈值时，确定所述终端的切换为乒乓切换。Or, the determining unit determines that the residence time of the terminal in the source cell is less than the time threshold, and the absolute value of the difference between the handover threshold of the target cell and the handover threshold of the source cell is less than a preset When the switching threshold is exceeded, it is determined that the switching of the terminal is a ping-pong switching.
上述方案中，所述装置还包括统计测量单元；In the above solution, the device further includes a statistical measurement unit;
所述统计测量单元，用于统计所述终端在源小区的驻留时间、测量源小区的RSRP值和/或RSRQ值、目标小区的RSRP值和/或RSRQ值，和/或获取源小区的切换门限值及目标小区的切换门限值。The statistical measurement unit is used to count the residence time of the terminal in the source cell, measure the RSRP value and/or RSRQ value of the source cell, the RSRP value and/or RSRQ value of the target cell, and/or obtain the The handover threshold and the handover threshold of the target cell.
本发明提供的一种检测乒乓切换的方法和装置，获取终端切换时的切换信息，确定所述切换信息中所述终端在源小区的驻留时间小于预设的时间阈值时，进一步确定所述切换信息中源小区的RSRP值与目标小区的RSRP值之差小于所述信号迟滞量，和/或，所述切换信息中源小区的RSRQ值和目标小区的RSRQ值之差小于所述信号迟滞量；或进一步确定所述切换信息中目标小区的切换门限值与源小区的切换门限值之差的绝对值小于预设的切换阈值时，确定所述终端的切换为乒乓切换。为减少外界因素的影响，本发明采用较复杂的乒乓切换条件，可实现高准确度的乒乓切换检测。A method and device for detecting ping-pong handover provided by the present invention obtains handover information when a terminal is handed over, and further determines that when the residence time of the terminal in the source cell in the handover information is less than a preset time threshold The difference between the RSRP value of the source cell and the RSRP value of the target cell in the handover information is less than the signal delay, and/or, the difference between the RSRQ value of the source cell and the RSRQ value of the target cell in the handover information is less than the signal delay or further determine that the absolute value of the difference between the handover threshold of the target cell and the handover threshold of the source cell in the handover information is less than a preset handover threshold, determine that the handover of the terminal is a ping-pong handover. In order to reduce the influence of external factors, the present invention adopts relatively complex ping-pong switching conditions, which can realize high-accuracy ping-pong switching detection.
附图说明Description of drawings
图1为本发明检测乒乓切换的方法流程示意图；Fig. 1 is the schematic flow chart of the method for detecting ping-pong switching of the present invention;
图2为本发明检测乒乓切换的方法的具体实施例示意图；Fig. 2 is a schematic diagram of a specific embodiment of the method for detecting ping-pong switching in the present invention;
图3为本发明检测乒乓切换的装置组成结构示意图。FIG. 3 is a schematic diagram of the composition and structure of the device for detecting ping-pong switching in the present invention.
具体实施方式detailed description
本发明提供了一种检测乒乓切换的方法，如图1所示，所述方法包括：The present invention provides a method for detecting ping-pong switching, as shown in Figure 1, the method includes:
步骤11：基站获取终端切换时的切换信息；Step 11: the base station obtains handover information when the terminal is handed over;
这里，所述切换信息包括：终端在源小区的驻留时间、源小区的参考信号接收功率(RSRP，Reference Signal Receiving Power)值和参考信号接收质量(RSRQ，ReferenceSignal Receiving Quality)值的至少一种、目标小区的RSRP值和RSRQ值的至少一种、和/或源小区的切换门限值及目标小区的切换门限值。Here, the handover information includes: at least one of the residence time of the terminal in the source cell, the reference signal received power (RSRP, Reference Signal Receiving Power) value and the reference signal received quality (RSRQ, Reference Signal Receiving Quality) value of the source cell , at least one of the RSRP value and the RSRQ value of the target cell, and/or the handover threshold value of the source cell and the handover threshold value of the target cell.
所述基站获取终端切换时的切换信息通过源小区向目标小区发送携带有切换信息的切换请求消息，所述目标小区通过所述切换请求消息获取所述切换信息；或者，所述终端将切换信息发送至所述基站等方式。The base station obtains the handover information when the terminal is handed over, and sends a handover request message carrying the handover information to the target cell through the source cell, and the target cell obtains the handover information through the handover request message; or, the terminal sends the handover information to the target cell sent to the base station, etc.
步骤12：确定所述切换信息中所述终端在源小区的驻留时间小于预设的时间阈值时，进一步确定所述切换信息中源小区的RSRP值与目标小区的RSRP值之差小于所述信号迟滞量，和/或，所述切换信息中源小区的RSRQ值和目标小区的RSRQ值之差小于所述信号迟滞量时，确定所述终端的切换为乒乓切换；或进一步确定所述切换信息中目标小区的切换门限值与源小区的切换门限值之差的绝对值小于预设的切换阈值时，确定所述终端的切换为乒乓切换。Step 12: When determining that the residence time of the terminal in the source cell in the handover information is less than a preset time threshold, further determine that the difference between the RSRP value of the source cell and the RSRP value of the target cell in the handover information is less than the Signal hysteresis, and/or, when the difference between the RSRQ value of the source cell and the RSRQ value of the target cell in the handover information is less than the signal hysteresis, determine that the handover of the terminal is a ping-pong handover; or further determine that the handover When the absolute value of the difference between the handover threshold of the target cell and the handover threshold of the source cell in the information is smaller than the preset handover threshold, it is determined that the handover of the terminal is a ping-pong handover.
图2为本发明具体实施例示意图，结合图2，源小区向目标小区发送携带有切换信息的切换请求消息，所述目标小区通过所述切换请求消息获取所述切换信息；所述目标小区确定所述终端在所述源小区的驻留时间小于所述时间阈值时，进一步确定所述切换信息中所述源小区的RSRP值与所述目标小区的RSRP值之差小于所述信号迟滞量时，确定所述终端的切换为乒乓切换。Fig. 2 is a schematic diagram of a specific embodiment of the present invention. In conjunction with Fig. 2, the source cell sends a handover request message carrying handover information to the target cell, and the target cell obtains the handover information through the handover request message; the target cell determines When the terminal, when the residence time of the source cell is less than the time threshold, further determines that the difference between the RSRP value of the source cell and the RSRP value of the target cell in the handover information is less than the signal delay amount , determining that the handover of the terminal is a ping-pong handover.
图2是以所述目标小区确定所述终端在所述源小区的驻留时间小于所述时间阈值，进一步确定所述切换信息中所述源小区的RSRP值与所述目标小区的RSRP值之差小于所述信号迟滞量为例进行的说明；此外，当确定切换信息中所述终端在所述源小区的驻留时间小于所述时间阈值时，进一步确定切换信息中所述源小区的RSRQ值与目标小区的RSRQ值之差小于所述信号迟滞量时，也可确定所述终端的切换为乒乓切换；FIG. 2 determines that the residence time of the terminal in the source cell is less than the time threshold by the target cell, and further determines the relationship between the RSRP value of the source cell and the RSRP value of the target cell in the handover information. In addition, when it is determined that the residence time of the terminal in the source cell in the handover information is less than the time threshold, further determine the RSRQ of the source cell in the handover information When the difference between the value and the RSRQ value of the target cell is less than the signal hysteresis, it can also be determined that the handover of the terminal is a ping-pong handover;
或者，当确定切换信息中所述终端在所述源小区的驻留时间小于所述时间阈值时，进一步确定所述切换信息中所述源小区的RSRP值与目标小区的RSRP值之差和所述源小区的RSRQ值和目标小区的RSRQ值之差均小于所述信号迟滞量时，确定所述终端的切换为乒乓切换；Or, when it is determined that the residence time of the terminal in the source cell in the handover information is less than the time threshold, further determine the difference between the RSRP value of the source cell and the RSRP value of the target cell in the handover information and the When the difference between the RSRQ value of the source cell and the RSRQ value of the target cell is less than the signal delay amount, it is determined that the handover of the terminal is a ping-pong handover;
或者，确定所述终端在所述源小区的驻留时间小于所述时间阈值，以及目标小区的切换门限值与源小区的切换门限值之差的绝对值小于预先设置的切换阈值时，确定所述终端的切换为乒乓切换。Or, when it is determined that the residence time of the terminal in the source cell is less than the time threshold, and the absolute value of the difference between the handover threshold of the target cell and the handover threshold of the source cell is less than a preset handover threshold, It is determined that the handover of the terminal is a ping-pong handover.
其中，所述信号迟滞量、切换阈值和时间阈值为预先设置的，可根据网络的实际应用情况进行修改。Wherein, the signal hysteresis, switching threshold and time threshold are preset and can be modified according to actual application conditions of the network.
在终端切换之前，还需所述终端对所述终端在源小区的驻留时间、测量源小区的RSRP和/或RSRQ、目标小区的RSRP和/或RSRQ进行统计；和/或对源小区的切换门限值及目标小区的切换门限值进行获取。Before the terminal is handed over, the terminal also needs to make statistics on the residence time of the terminal in the source cell, measure the RSRP and/or RSRQ of the source cell, and the RSRP and/or RSRQ of the target cell; Obtain the handover threshold value and the handover threshold value of the target cell.
所述步骤12为确定所述源小区的驻留时间小于所述时间阈值的情况，确定所述切换信息中所述终端在所述源小区的驻留时间大于所述设定的时间阈值时，确定所述切换为正常切换。The step 12 is to determine that the residence time of the source cell is less than the time threshold, and when it is determined that the residence time of the terminal in the source cell in the handover information is greater than the set time threshold, It is determined that the switching is a normal switching.
本发明还提供了一种检测乒乓切换的装置，如图3所示，所述装置包括：获取单元22及确定单元23；The present invention also provides a device for detecting ping-pong switching. As shown in FIG. 3 , the device includes: an acquisition unit 22 and a determination unit 23;
所述获取单元22，用于获取终端切换时的切换信息；The obtaining unit 22 is configured to obtain switching information when the terminal is switched;
所述确定单元23，用于确定所述切换信息中所述终端在源小区的驻留时间小于预设的时间阈值时，进一步确定所述切换信息中源小区的RSRP值与目标小区的RSRP值之差小于所述信号迟滞量，和/或，所述切换信息中源小区的RSRQ值和目标小区的RSRQ值之差小于所述信号迟滞量时，确定所述终端的切换为乒乓切换；The determination unit 23 is configured to further determine the RSRP value of the source cell and the RSRP value of the target cell in the handover information when the residence time of the terminal in the source cell in the handover information is less than a preset time threshold The difference is less than the signal hysteresis, and/or, when the difference between the RSRQ value of the source cell and the RSRQ value of the target cell in the handover information is less than the signal hysteresis, it is determined that the handover of the terminal is a ping-pong handover;
或进一步确定所述切换信息中目标小区的切换门限值与源小区的切换门限值之差的绝对值小于预设的切换阈值时，确定所述终端的切换为乒乓切换。Or when it is further determined that the absolute value of the difference between the handover threshold of the target cell and the handover threshold of the source cell in the handover information is smaller than a preset handover threshold, it is determined that the handover of the terminal is a ping-pong handover.
进一步的，所述获取单元22获取所述切换信息包括：在源小区向目标小区发送携带有切换信息的切换请求消息时，通过所述切换请求消息获取所述切换信息；或者，接收终端发送的切换信息。Further, the acquiring unit 22 acquiring the handover information includes: when the source cell sends a handover request message carrying the handover information to the target cell, acquiring the handover information through the handover request message; or receiving the handover information sent by the terminal Toggle information.
具体的，在源小区向目标小区发送携带有切换信息的切换请求消息时，所述获取单元22获取到所述切换信息，所述确定单元23确定所述终端在所述源小区的驻留时间小于预先设置的时间阈值，进一步确定所述源小区的RSRP值与所述目标小区的RSRP值之差小于预先设置的信号迟滞量时，确定所述终端的切换为乒乓切换。Specifically, when the source cell sends a handover request message carrying handover information to the target cell, the acquisition unit 22 acquires the handover information, and the determination unit 23 determines the residence time of the terminal in the source cell is less than a preset time threshold, and when it is further determined that the difference between the RSRP value of the source cell and the RSRP value of the target cell is smaller than a preset signal delay, it is determined that the handover of the terminal is a ping-pong handover.
当所述确定单元23确定所述终端在所述源小区的驻留时间小于所述时间阈值，进一步确定所述源小区的RSRQ值与所述目标小区的RSRQ值之差小于所述信号迟滞量时，确定所述终端的切换为乒乓切换；When the determining unit 23 determines that the residence time of the terminal in the source cell is less than the time threshold, further determining that the difference between the RSRQ value of the source cell and the RSRQ value of the target cell is less than the signal delay amount , determining that the switching of the terminal is a ping-pong switching;
当所述确定单元23确定所述终端在所述源小区的驻留时间小于所述时间阈值，进一步确定所述源小区的RSRP值与目标小区的RSRP值之差和所述源小区的RSRQ值和目标小区的RSRQ值之差均小于所述信号迟滞量时，确定所述终端的切换为乒乓切换；When the determination unit 23 determines that the residence time of the terminal in the source cell is less than the time threshold, further determine the difference between the RSRP value of the source cell and the RSRP value of the target cell and the RSRQ value of the source cell When the difference with the RSRQ value of the target cell is less than the signal delay amount, it is determined that the handover of the terminal is a ping-pong handover;
当所述确定单元23确定所述终端在所述源小区的驻留时间小于所述时间阈值，以及目标小区的切换门限值与源小区的切换门限值之差的绝对值小于预先设置的切换阈值时，确定所述终端的切换为乒乓切换。When the determination unit 23 determines that the residence time of the terminal in the source cell is less than the time threshold, and the absolute value of the difference between the handover threshold of the target cell and the handover threshold of the source cell is less than a preset When the switching threshold is exceeded, it is determined that the switching of the terminal is a ping-pong switching.
其中，所述信号迟滞量、切换阈值、时间阈值均为预先设置的值，可根据网络的实际应用情况进行修改。Wherein, the signal hysteresis, the switching threshold, and the time threshold are all preset values, which can be modified according to actual application conditions of the network.
进一步地，所述装置还包括统计测量单元21；为便于实现所述获取单元22、确定单元23的功能，所述统计测量单元21，用于统计所述终端在源小区的驻留时间、测量源小区的RSRP值和/或RSRQ值、目标小区的RSRP值和/或RSRQ值，和/或获取源小区的切换门限值及目标小区的切换门限值。Further, the device also includes a statistical measurement unit 21; in order to facilitate the realization of the functions of the acquisition unit 22 and the determination unit 23, the statistical measurement unit 21 is used to count the residence time of the terminal in the source cell, measure The RSRP value and/or RSRQ value of the source cell, the RSRP value and/or RSRQ value of the target cell, and/or obtain the handover threshold value of the source cell and the handover threshold value of the target cell.
本发明提供的检测乒乓切换的方法与装置，基站获取终端切换时的切换信息，确定终端在源小区的驻留时间小于时间阈值，进一步确定所述切换信息中源小区的RSRP值与目标小区的RSRP值之差小于所述信号迟滞量，和/或，所述切换信息中源小区的RSRQ值和目标小区的RSRQ值之差小于所述信号迟滞量时，确定所述终端的切换为乒乓切换；或进一步确定所述切换信息中目标小区的切换门限值与源小区的切换门限值之差的绝对值小于预设的切换阈值时，确定所述终端的切换为乒乓切换。利用本发明，不易受外界因素影响、可实现乒乓切换的自动检测、乒乓切换的判定条件不单一，检测准确度高。In the method and device for detecting ping-pong handover provided by the present invention, the base station obtains the handover information when the terminal is handed over, determines that the residence time of the terminal in the source cell is less than the time threshold, and further determines the RSRP value of the source cell in the handover information and the RSRP value of the target cell. The difference between the RSRP value is less than the signal hysteresis, and/or, when the difference between the RSRQ value of the source cell and the RSRQ value of the target cell in the handover information is less than the signal hysteresis, it is determined that the handover of the terminal is a ping-pong handover or further determine that the absolute value of the difference between the handover threshold of the target cell and the handover threshold of the source cell in the handover information is less than the preset handover threshold, determine that the handover of the terminal is a ping-pong handover. The invention is not easily affected by external factors, can realize the automatic detection of ping-pong switching, the judging conditions of ping-pong switching are not single, and the detection accuracy is high.
以上所述，仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention.
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