WO2015157905A1

WO2015157905A1 - Network device and method for detecting confusion of pcis

Info

Publication number: WO2015157905A1
Application number: PCT/CN2014/075350
Authority: WO
Inventors: 张大伟; 陈亚勇
Original assignee: 华为技术有限公司
Priority date: 2014-04-15
Filing date: 2014-04-15
Publication date: 2015-10-22
Also published as: CN105379338A

Abstract

The present invention provides a network device and method for detecting a confusion of physical cell identities (PCIs). The method comprises the following steps: a network device collects statistics on anomaly information about handovers from a first cell to a second cell, the second cell being a configured neighboring cell of the first cell (S101); when the anomaly information about handovers reaches a preset threshold condition, the network device acquires information comprising an evolved universal terrestrial radio access network (E-UTRAN) cell global identifier (ECGI) of a third cell by means of a user equipment (UE), the UE being located in the first cell, the first cell being a serving cell of the UE, the third cell being a target cell to which the UE is actually handed over, the third cell being an unconfigured neighboring cell of the first cell, and a PCI of the third cell being the same as a PCI of the second cell (S102); and when the ECGI of the third cell is different from an ECGI of the second cell, the network device determines that a confusion exists between the PCI of the third cell and the PCI of the second cell (S103). By means of the method, a confusion of PCIs can be effectively identified.

Description

Network device and method for PCI confusion detection

【技术领域】[Technical Field]

The present invention relates to the field of wireless communication technologies, and in particular, to a physical cell identifier (Physical Cell) Identity, PCI) network equipment and methods for obfuscation detection.

【背景技术】【Background technique】

PCI is a long-term evolution (Long Term Evolution, LTE) The physical identity of the cell, LTE has a total of 504 PCI (0~503), each cell corresponds to a PCI, PCI is related to signal synchronization and handover. When there are relatively many LTE cells in the network or the configuration is incorrect, PCI confusion occurs.

As shown in FIG. 1, if the cell is detected by the user equipment (User Equipment, UE) in the serving cell Cell A101, If the B102 is the same frequency as the configured neighbor Cell C103 of the serving cell Cell A101 and is the same as the PCI, there is a PCI confusion.

However, in some special scenarios, PCI confusion cannot be effectively identified.

【发明内容】 [Summary of the Invention]

The technical problem to be solved by the present invention is to provide a network device and method for PCI confusion detection, which can effectively identify PCI confusion.

In a first aspect, the present invention provides a network device for physical cell identification PCI confusion detection, where the network device includes: a statistics unit, a determining unit, an obtaining unit, and a determining unit; the statistical unit is configured to count from the first cell to the first The switching abnormality information of the second cell, the second cell is a configured neighboring cell of the first cell, and the determining unit is configured to determine whether the switching abnormality information that is counted by the statistical unit reaches a preset threshold condition; The acquiring unit is configured to acquire, by the user equipment UE, the evolved universal terrestrial radio access network E-UTRAN cell global identifier ECGI including the third cell when the judgment result of the determining unit is that the switching abnormality information reaches a preset threshold condition The information that the UE is located in the first cell, the first cell is a serving cell of the UE, the third cell is a target cell in which the UE actually performs handover, and the third cell is the The first cell is not configured with a neighboring cell, and the PCI of the third cell is the same as the PCI of the second cell; the determining unit is configured to be used by the acquiring unit When the ECGI of the third cell is different from the ECGI of the second cell, it is determined that the PCI of the third cell is confused with the PCI of the second cell.

In a first possible implementation manner of the first aspect, the statistic unit is specifically configured to calculate a handover success rate from the first cell to the second cell, where the determining unit is specifically configured to determine, by using the statistics unit, Whether the handover success rate is lower than the handover success rate threshold.

In a second possible implementation manner of the first aspect, the statistic unit is specifically configured to collect a number of handover failures from the first cell to the second cell, where the determining unit is specifically configured to determine, by using the statistics unit, Whether the number of handover failures is greater than the threshold of the number of handover failures.

With reference to the first aspect, any one of the first to the second possible implementation manners of the first aspect, in a third possible implementation manner of the first aspect, the network device is an evolved base station eNB or a centralized device.

With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, when the network device is an eNB, the acquiring unit includes a first sending subunit and a first receiving The first sending subunit is configured to send a first query instruction to the user equipment UE, where the first query instruction requests the UE to query and report information including an ECGI of the third cell; the first receiving sub The unit is configured to receive the information about the ECGI of the third cell that is sent by the UE.

With reference to the third possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect, when the network device is a centralized device, the acquiring unit includes a second sending subunit and a a second receiving subunit, configured to send a second query instruction to the eNB to which the first cell belongs, where the second query instruction requires the eNB to query and report the third cell by using the UE Information of the ECGI; the second receiving subunit is configured to receive, by the eNB, the information about the ECGI of the third cell obtained by the UE.

In a second aspect, the present invention provides a method for physical cell identity PCI confusion detection, including: a network device statistics handover abnormality information from a first cell to a second cell, where the second cell is configured by the first cell a neighboring area; when the handover abnormality information reaches a preset threshold condition, the network device acquires, by using the user equipment UE, information about an evolved universal terrestrial radio access network E-UTRAN cell global identifier ECGI of the third cell, where The UE is located in the first cell, the first cell is a serving cell of the UE, the third cell is a target cell that the UE actually performs handover, and the third cell is that the first cell is not configured. a neighboring cell, and the PCI of the third cell is the same as the PCI of the second cell; when the ECGI of the third cell is different from the ECGI of the second cell, the network device determines the third The PCI of the cell is confused with the PCI of the second cell.

In a first possible implementation manner of the second aspect, the switching abnormality information includes: a handover success rate; when the handover abnormality information reaches a preset threshold condition, the network device acquires, by using the UE, a third cell. The information of the ECGI includes: when the handover success rate is lower than a handover success threshold, the network device acquires information including an ECGI of the third cell by using the UE.

In a second possible implementation manner of the second aspect, the switching abnormality information includes: a number of handover failures; when the handover abnormality information reaches a preset threshold condition, the network device acquires, by using the UE, a third cell. The information of the ECGI includes: when the number of handover failures is greater than a threshold of the number of handover failures, the network device acquires information including an ECGI of the third cell by using the UE.

With reference to the second aspect, any one of the first to the second possible implementation manners of the second aspect, in a third possible implementation manner of the second aspect, the network device is an evolved base station eNB or a centralized device.

With reference to the third possible implementation manner of the second aspect, in a fourth possible implementation manner of the second aspect, the network device, by using the user equipment UE, acquiring information about an ECGI of the third cell, including: when When the network device is an eNB, the eNB sends a first query instruction to the user equipment UE, where the first query instruction requires the UE to query and report information including the ECGI of the third cell; and the eNB receives the information sent by the UE. The information including the ECGI of the third cell.

With reference to the third possible implementation of the second aspect, in a fifth possible implementation manner of the second aspect, the network device, by using the user equipment UE, acquiring information about an ECGI of the third cell, including: when When the network device is a centralized device, the centralized device sends a second query instruction to the eNB to which the first cell belongs, where the second query instruction requires the eNB to query and report the third cell by using the UE. Information of the ECGI; the centralized device receives the information of the ECGI including the third cell obtained by the eNB and sent by the UE.

Different from the prior art, the beneficial effects of the present invention are: the network device of the present invention collects the switching abnormality information from the first cell to the second cell; if the switching abnormality information reaches the preset threshold condition, the third device through the user equipment acquires the third The ECGI information of the cell, the user equipment is located in the first cell, the first cell is the serving cell of the UE, the third cell is the target cell in which the UE actually performs handover, and the third cell is the first cell not configured with the neighboring cell, and the third cell The PCI is the same as the second cell; when the ECGI of the third cell is different from the ECGI of the second cell, it is determined that the PCI of the third cell is confused with the PCI between the second cells. The network device collects the abnormality information of the switch, and obtains the ECGI information of the third cell by using the user equipment when the abnormality information of the switch reaches the preset threshold condition, so that the PCI confusion can be effectively identified.

【附图说明】 [Description of the Drawings]

Figure 1 is a schematic diagram of the principle of PCI confusion;

2 is a flowchart of an embodiment of a method for detecting PCI confusion of a physical cell identifier according to the present invention;

3 is a flowchart of another embodiment of a method for physical cell identification PCI confusion detection according to the present invention;

4 is a flowchart of still another embodiment of a method for physical cell identification PCI confusion detection according to the present invention;

5 is a schematic structural diagram of an embodiment of a network device for detecting a PCI confusion of a physical cell identifier according to the present invention;

6 is a schematic structural diagram of another embodiment of a network device for detecting physical confusion of a physical cell identifier according to the present invention;

7 is a schematic structural diagram of still another embodiment of a network device for detecting a PCI confusion of a physical cell identifier according to the present invention;

FIG. 8 is a schematic diagram showing the physical structure of an embodiment of a network device for detecting a PCI confusion of a physical cell identifier according to the present invention.

【具体实施方式】【detailed description】

The present application will be described in detail below with reference to the accompanying drawings and embodiments.

The scenario shown in Figure 1, user equipment (User Equipment, UE) moves from the area covered by the first cell to the area covered by the third cell. The third cell is the unconfigured neighboring cell of the first cell, and the second cell is the configured neighboring cell of the first cell. Because the PCI of the third cell is the same as the PCI of the second cell, the base station mistakenly believes that the UE needs to switch from the first cell. To the second cell, the base station sends a handover command to the UE to the second cell. However, the UE actually moves to the coverage area of the third cell, and the third cell is the real target cell of the UE, and then the UE changes from the first cell to the second cell.

Referring to FIG. 2, FIG. 2 is a flowchart of an implementation manner of a physical cell identifier PCI confusion detection method according to the present invention, including:

Step S101: The network device collects handover abnormality information from the first cell to the second cell, where the second cell is a configured neighboring cell of the first cell.

The network device may be an evolved NodeB (eNB), or a centralized device, or a network management device.

The network device may collect the switching abnormality information from the first cell to the second cell in a predetermined period, and the predetermined period may be set. For example, according to the actual situation, 5 days, 7 days, 10 days, and the like may be set.

The handover abnormality information may be information indicating the success rate of the handover, or the number of failures of the handover, etc., which characterize the handover abnormality.

Step S102: When the handover abnormality information reaches the preset threshold condition, the network device acquires, by using the user equipment, the information of the evolved universal terrestrial radio access network E-UTRAN cell global identifier ECGI of the third cell, The UE is located in the first cell, the first cell is the serving cell of the UE, the third cell is the target cell in which the UE actually performs handover, the third cell is the unconfigured neighboring cell of the first cell, and the PCI of the third cell and the second cell PCI is the same.

When the switching abnormality information is the switching success rate, the preset threshold condition is that the switching success rate is lower than the switching success rate threshold, or when the switching abnormality information is the number of switching failures, the preset threshold condition is that the switching failure number is greater than the switching failure threshold threshold. . For example, the handover success rate threshold may be set to 30% of the success rate of the handover, and the handover failure threshold may be set to the number of handover failures, 8 failures in 10 handovers, and the like. The threshold for switching the success rate threshold or the number of switching failures can be adjusted according to the needs of the system.

E-UTRAN Cell Global, E-UTRAN Cell Global, Evolved Universal Terrestrial Radio Access Network The Identifier (ECGI) is a global identifier of an LTE cell. If the ECGI of a cell is different, it belongs to a different cell. If the ECGIs of two cells are the same, the two cells are the same cell.

When the switching abnormality information reaches the preset threshold condition, the network device needs to acquire information including the ECGI of the third cell.

Step S103: When the ECGI of the third cell is different from the ECGI of the second cell, the network device determines that the PCI of the third cell is confused with the PCI of the second cell.

The ECGI of the third cell is different from the ECGI of the second cell, indicating that the third cell and the second cell are two different cells, but the PCI of the third cell is the same as the PCI of the second cell, indicating that the PCI of the third cell is There is confusion in the PCI between the second cells.

In the embodiment of the present invention, the network device collects the switching abnormality information from the first cell to the second cell; if the switching abnormality information reaches the preset threshold condition, the user equipment acquires the information of the ECGI including the third cell, where the user equipment is located in the first cell, The first cell is a serving cell of the UE, the third cell is a target cell in which the UE actually performs handover, the third cell is a neighboring cell in which the first cell is not configured, and the third cell has the same PCI as the second cell; When the ECGI is different from the ECGI of the second cell, it is determined that there is confusion between the PCI of the third cell and the PCI between the second cells. The network device collects the abnormal information of the switch, and obtains the ECGI information of the third cell by using the user equipment, so that the confusion of the PCI can be effectively identified, especially the newly discovered cell and the serving cell are effectively identified. The neighboring cell has the same frequency as the PCI.

Referring to FIG. 3, FIG. 3 is a flowchart of another embodiment of a physical cell identifier PCI obfuscation detection method according to the present invention. The implementation manner is basically the same as the implementation manner of FIG. 2, and the similarities are shown in FIG. 2 and related text descriptions. The difference is that the network device in this embodiment is specifically an evolved base station eNB. In this case, step S102 includes step S202 and step S203, and the content is as follows:

Step S201: The eNB counts handover abnormality information from the first cell to the second cell, where the second cell is a configured neighboring cell of the first cell.

Step S202: When the handover abnormality information reaches the preset threshold condition, the eNB sends a first query instruction to the user equipment UE, where the first query instruction requests the UE to query and report the information of the ECGI including the third cell.

Step S203: The eNB receives the information about the ECGI of the third cell that is sent by the UE.

Since the third cell is an unconfigured neighboring cell of the first cell, the eNB does not know the ECGI of the third cell according to the measurement report of the UE.

The acquiring, by the eNB, the information of the ECGI of the third cell by using the UE may include: the eNB sending the first query instruction to the UE, where the first query instruction requires the UE to query and report the information of the ECGI that includes the third cell. The UE queries and reports the ECGI information of the third cell according to the first query instruction. In an actual application, the eNB needs to continuously trigger multiple times to ensure that the UE queries the information of the ECGI that includes the third cell.

The eNB receives information of the ECGI including the third cell sent by the UE.

Step S204: When the ECGI of the third cell is different from the ECGI of the second cell, the eNB determines that the PCI of the third cell is confused with the PCI of the second cell.

In the embodiment of the present invention, the eNB collects the switching abnormality information from the first cell to the second cell; if the switching abnormality information reaches the preset threshold condition, the first query instruction is sent to the user equipment UE, and the first query instruction requests the UE to query and report the inclusion The information of the ECGI of the three cells receives the information of the ECGI of the third cell sent by the UE, the user equipment is located in the first cell, the first cell is the serving cell of the UE, the third cell is the target cell in which the UE actually performs handover, and the third The cell is a first cell not configured with a neighboring cell, and the third cell and the second cell have the same PCI; when the ECGI of the third cell is different from the ECGI of the second cell, determining the PCI between the third cell and the second cell The PCI is confusing. The eNB counts the abnormality information of the handover, and obtains the ECGI information of the third cell by using the user equipment, so that the confusion of the PCI can be effectively identified, in particular, the newly discovered cell and the serving cell are effectively identified. Configuring the same frequency in the neighboring area to be confused with PCI

Referring to FIG. 4, FIG. 4 is a flowchart of still another embodiment of a physical cell identifier PCI confusion detection method according to the present invention. The implementation manner is basically the same as that of FIG. 2, and the similarities are shown in FIG. 2 and related text descriptions. The difference is that the network device in this embodiment is specifically a centralized device, and the centralized device in this embodiment includes a network management device. At this time, step S102 specifically includes step S302 and step S303, and the content is as follows:

Step S301: The centralized device collects handover abnormality information from the first cell to the second cell, where the second cell is a configured neighboring cell of the first cell.

The centralized device learns and counts handover abnormality information from the first cell to the second cell from the eNB to which the first cell belongs. The second cell is a configured neighboring cell of the first cell, and the first cell is a serving cell of the user equipment.

Step S302: When the handover abnormality information reaches the preset threshold condition, the centralized device sends a second query instruction to the eNB to which the first cell belongs, and the second query instruction requests the eNB to query and report the information of the ECGI of the third cell by using the UE.

Step S303: The centralized device receives the information about the ECGI of the third cell obtained by the UE and sent by the eNB.

When the switching abnormality information reaches the preset threshold condition, the centralized device sends a second query instruction to the eNB to which the first cell belongs, and the second query instruction requires the eNB to query and report the information of the ECGI of the third cell by using the UE. Then, the eNB sends an instruction to the UE, requesting the UE to query and report the information of the ECGI including the third cell, and after receiving the command, the UE measures the third cell, and obtains information including the ECGI of the third cell, and then the UE will include the third. The ECGI information of the cell is transmitted to the eNB, and the eNB transmits the information including the ECGI of the third cell to the centralized device.

Step S304: When the ECGI of the third cell is different from the ECGI of the second cell, the centralized device determines that the PCI of the third cell is confused with the PCI of the second cell.

In the embodiment of the present invention, the centralized device collects the switching abnormality information from the first cell to the second cell; if the switching abnormality information reaches the preset threshold condition, the second query instruction is sent to the eNB to which the first cell belongs, and the second query instruction requests the eNB. The information of the ECGI including the third cell is queried by the UE, and the information about the ECGI of the third cell obtained by the eNB is received by the eNB, where the user equipment is located in the first cell, the first cell is the serving cell of the UE, and the third cell is used. For the target cell in which the UE actually performs handover, the third cell is that the first cell is not configured with the neighboring cell, and the third cell has the same PCI as the second cell; when the ECGI of the third cell is different from the ECGI of the second cell, It is determined that there is confusion between the PCI of the third cell and the PCI between the second cells. The centralized device counts the abnormality information and obtains the ECGI information of the third cell through the user equipment, so that the confusion of the PCI can be effectively identified, and the newly discovered cell and the serving cell are effectively identified. The configured neighboring cell is confused with PCI

According to the foregoing PCI obfuscation detection method, after the network device learns that the PCI of the third cell is confused with the PCI of the second cell, the PCI obfuscation processing mechanism can eliminate the PCI confusion problem, thereby ensuring the subsequent handover performance.

The foregoing PCI obfuscation detection method is applicable to a newly discovered scenario in which the serving cell is not configured with a neighboring cell, and is also applicable to a reverse handover to a serving cell in a newly discovered cell, a newly discovered cell and a serving cell are not co-managed, and two sites are more Scenes such as cell PCI coincidence.

Referring to FIG. 5, FIG. 5 is a schematic structural diagram of an implementation manner of a network device for detecting physical confusion of a physical cell according to the present invention. The network device 50 includes a statistics unit 501, a determining unit 502, an obtaining unit 503, and a determining unit 504.

The network device may be an evolved base station eNB, or a centralized device, or a network management device.

The statistic unit 501 is configured to count handover abnormality information from the first cell to the second cell, where the second cell is a configured neighboring cell of the first cell.

The statistics unit may collect switching abnormality information from the first cell to the second cell in a predetermined period, and the predetermined period may be set according to actual conditions.

The switching abnormality information may be information such as the success rate of the handover, or the number of failures of the handover.

The determining unit 502 is configured to determine whether the switching abnormality information counted by the statistical unit 501 reaches a preset threshold condition.

When the handover abnormality information is the handover success rate, the determining unit 502 is specifically configured to determine whether the handover success rate counted by the statistics unit 501 is lower than the handover success rate threshold. For example, the handover success rate threshold can be set to a handover success rate of 30%.

When the handover abnormality information is the number of handover failures, the determining unit 502 is specifically configured to determine whether the number of handover failures counted by the statistics unit 501 is greater than a handover failure threshold. For example, the number of handover failure thresholds may be set to the number of handover failures, 8 failures in 10 handovers, and the like.

The obtaining unit 503 is configured to: when the determining result of the determining unit 502 is that the switching abnormality information reaches a preset threshold condition, acquire, by using the user equipment, information about the evolved universal terrestrial radio access network E-UTRAN cell global identifier ECGI of the third cell, The UE is located in the first cell, the first cell is the serving cell of the UE, the third cell is the target cell in which the UE actually performs handover, the third cell is the unconfigured neighboring cell of the first cell, and the PCI of the third cell and the second cell PCI is the same.

When the switching abnormality information reaches the preset threshold condition, the network device needs to acquire the information of the ECGI of the third cell.

The determining unit 504 is configured to determine that the PCI of the third cell is confused with the PCI between the second cell when the ECGI of the third cell acquired by the acquiring unit 503 is different from the ECGI of the second cell.

Referring to FIG. 6, the network device includes: a statistics unit 601, a determining unit 602, an obtaining unit 603, and a determining unit 604. The statistical unit 601, the determining unit 602, the determining unit 604, and the statistical unit 501, the determining unit 502 of FIG. The determining unit 504 is substantially the same, and is not described here. When the network device is an eNB, the obtaining unit 603 includes: a first sending subunit 6031 and a first receiving subunit 6032.

The first sending sub-unit 6031 is configured to send a first query instruction to the user equipment UE, where the first query instruction requires the UE to query and report the information including the ECGI of the third cell.

The first receiving subunit 6032 is configured to receive information that is sent by the UE and includes an ECGI of the third cell.

When the network device is an eNB, the eNB may send a first query instruction to the user equipment UE, in order to obtain the ECGI information of the third cell, by using the UE, and the first query instruction requires the UE to query and report the ECGI including the third cell. Information. The UE queries the information of the ECGI of the third cell according to the first query instruction. In the actual application, the eNB needs to continuously trigger multiple times to ensure that the user equipment queries the information of the ECGI that includes the third cell.

Referring to FIG. 7, the network device includes: a statistic unit 701, a determining unit 702, an obtaining unit 703, and a determining unit 704. The statistic unit 701, the determining unit 702, the determining unit 704, and the statistic unit 501 and the determining unit 502 of FIG. The determining unit 504 is substantially the same, and is not described here. When the network device is a centralized device, the obtaining unit 703 includes: a second sending subunit 7031 and a second receiving subunit 7032.

The second sending sub-unit 7031 is configured to send a second query instruction to the eNB to which the first cell belongs, and the second query instruction requires the eNB to query and report information about the ECGI of the third cell by using the UE.

The second receiving subunit 7032 is configured to receive, by the eNB, information that is obtained by the UE and includes an ECGI of the third cell.

Referring to FIG. 8, FIG. 8 is a schematic diagram of an entity structure of an embodiment of a network device for detecting physical confusion of a physical cell according to the present invention. The network device includes: a processor 81, a memory 82 coupled to the processor 81, a transmitter 83, and a receiver. 84.

The memory 82 is configured to store first cell to second cell handover abnormality information.

The processor 81 is configured to collect switching abnormality information of the first cell to the second cell that is extracted from the memory 82, where the second cell is a configured neighboring cell of the first cell; Whether the statistics of the switching abnormality information reaches the preset threshold condition.

The processor 81 is further configured to: when the handover abnormality information reaches a preset threshold condition, acquire, by using the UE, the information of the ECGI of the third cell, where the UE is located in the first cell, the first cell Is a serving cell of the UE, where the third cell is a target cell in which the UE actually performs handover, the third cell is a neighboring cell in which the first cell is not configured, and a PCI and a location of the third cell are The PCI of the second cell is the same.

The processor 81 is further configured to: when the ECGI of the third cell is different from the ECGI of the second cell, determine that the PCI of the third cell is confused with the PCI of the second cell.

The switching abnormality information is a handover success rate or a handover failure number, and the preset threshold condition is that the handover success rate is lower than a handover success threshold or the handover failure number is greater than a handover failure threshold.

The network device is an evolved base station eNB or a centralized device.

When the network device is an eNB, the transmitter 83 is configured to send a first query instruction to the user equipment UE, where the first query instruction requests the UE to query and report information including an ECGI of the third cell; The receiver 84 is configured to receive the information about the ECGI of the third cell that is sent by the UE.

When the network device is a centralized device, the transmitter 83 is configured to send a second query instruction to the eNB to which the first cell belongs, where the second query instruction requests the eNB to query and report by using the UE. Information including an ECGI of the third cell; the receiver 84 is configured to receive, by the eNB, information about the ECGI of the third cell obtained by the UE.

The memory 82 is also used to store instruction information to cause the processor 81 to perform the above method.

In the several embodiments provided by the present invention, it should be understood that the disclosed system, apparatus, and method may be implemented in other manners. For example, the device implementations described above are merely illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be used. Combinations can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) or a processor to perform all or part of the steps of the methods of the various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read only memory (ROM, Read-Only) Memory, random access memory (RAM), disk or optical disk, and other media that can store program code.

The above is only the embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the invention and the drawings are directly or indirectly applied to other related technologies. The fields are all included in the scope of patent protection of the present invention.

Claims

A network device for identifying a PCI confusion detection by a physical cell, where the network device includes: a statistics unit, a determining unit, an obtaining unit, and a determining unit;

The statistics unit is configured to collect handover abnormality information from the first cell to the second cell, where the second cell is a configured neighboring cell of the first cell;

The determining unit is configured to determine whether the switching abnormality information counted by the statistical unit reaches a preset threshold condition;

The acquiring unit is configured to acquire, by the user equipment UE, an evolved universal terrestrial radio access network E-UTRAN cell including a third cell, when the judgment result of the determining unit is that the handover abnormality information reaches a preset threshold condition Identifying the information of the ECGI, the UE is located in the first cell, the first cell is a serving cell of the UE, the third cell is a target cell in which the UE actually performs handover, and the third cell is The first cell is not configured with a neighboring cell, and the PCI of the third cell is the same as the PCI of the second cell;

Determining, by the determining unit, that when the ECGI of the third cell acquired by the acquiring unit is different from the ECGI of the second cell, determining that the PCI of the third cell is confused with the PCI of the second cell .
The network device according to claim 1, wherein the statistics unit is specifically configured to count a handover success rate from the first cell to the second cell;

The determining unit is specifically configured to determine whether the handover success rate counted by the statistical unit is lower than a handover success threshold.
The network device according to claim 1, wherein the statistics unit is specifically configured to count the number of handover failures from the first cell to the second cell;

The determining unit is specifically configured to determine whether the number of handover failures counted by the statistics unit is greater than a threshold of the number of handover failures.
The network device according to any one of claims 1 to 3, wherein the network device is an evolved base station eNB or a centralized device.
The network device according to claim 4, wherein when the network device is an eNB, the acquiring unit comprises a first sending subunit and a first receiving subunit;

The first sending sub-unit is configured to send a first query instruction to the user equipment UE, where the first query instruction requires the UE to query and report information including an ECGI of the third cell;

The first receiving subunit is configured to receive the information about the ECGI of the third cell that is sent by the UE.
The network device according to claim 4, wherein when the network device is a centralized device, the acquiring unit comprises a second sending subunit and a second receiving subunit;

The second sending subunit is configured to send a second query instruction to the eNB to which the first cell belongs, where the second query instruction requires the eNB to query and report information about the ECGI of the third cell by using the UE;

The second receiving subunit is configured to receive, by the eNB, information about the ECGI of the third cell obtained by the UE.
A method for identifying a PCI confusion detection by a physical cell, comprising:

The network device collects handover abnormality information from the first cell to the second cell, where the second cell is a configured neighboring cell of the first cell;

When the handover abnormality information reaches a preset threshold condition, the network device acquires, by using the user equipment UE, information about an evolved universal terrestrial radio access network E-UTRAN cell global identifier ECGI of the third cell, where the UE is located at the location a first cell, where the first cell is a serving cell of the UE, the third cell is a target cell in which the UE actually performs handover, and the third cell is a neighboring cell in which the first cell is not configured. And the PCI of the third cell is the same as the PCI of the second cell;

When the ECGI of the third cell is different from the ECGI of the second cell, the network device determines that the PCI of the third cell is confused with the PCI of the second cell.
The method according to claim 7, wherein the switching abnormality information comprises:

Switching success rate;

When the switching abnormality information reaches the preset threshold condition, the network device acquires the information of the ECGI of the third cell by using the UE, where the network device passes when the handover success rate is lower than the handover success rate threshold. The UE acquires information including the ECGI of the third cell.
The method according to claim 7, wherein the switching abnormality information comprises:

Number of failed handovers;

When the switching abnormality information reaches the preset threshold condition, the network device acquires the information of the ECGI of the third cell by using the UE, where the network device passes the UE when the number of handover failures is greater than the threshold of the number of handover failures. Obtaining information including the ECGI of the third cell.
The method according to any one of claims 7 to 9, wherein the network device is an evolved base station eNB or a centralized device.
The method according to claim 10, wherein the acquiring, by the user equipment, the information of the ECGI of the third cell by using the user equipment, includes:

When the network device is an eNB, the eNB sends a first query instruction to the user equipment UE, where the first query instruction requests the UE to query and report information including an ECGI of the third cell;

The eNB receives the information about the ECGI of the third cell that is sent by the UE.
The method according to claim 10, wherein the acquiring, by the user equipment, the information of the ECGI of the third cell by using the user equipment, includes:

When the network device is a centralized device, the centralized device sends a second query instruction to the eNB to which the first cell belongs, where the second query instruction requires the eNB to query and report the content by using the UE. Information on the ECGI of the three cells;

And the centralized device receives the information about the ECGI of the third cell that is obtained by the eNB and is obtained by the UE.