CN107864481B

CN107864481B - Neighbor cell optimization method, device and base station

Info

Publication number: CN107864481B
Application number: CN201610840100.4A
Authority: CN
Inventors: 何金招
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2016-09-22
Filing date: 2016-09-22
Publication date: 2022-08-16
Anticipated expiration: 2036-09-22
Also published as: CN107864481A

Abstract

The invention discloses a method and a device for optimizing parameters of a neighboring cell and a base station. The method comprises the following steps: receiving a switching measurement report sent by user equipment; determining a target cell according to the switching measurement report; acquiring cell parameters of the target cell from the determined target cell; and updating the neighbor cell information when the acquired cell parameter of the target cell is identified to be inconsistent with the pre-stored cell parameter of the target cell. According to the embodiment of the invention, before the target cell is switched, the parameter error of the adjacent cell can be identified and the adjacent cell parameter can be automatically optimized.

Description

Neighbor cell optimization method, device and base station

Technical Field

The present invention relates to the field of wireless communication technologies, and in particular, to a method, an apparatus, and a base station for optimizing parameters of a neighboring cell.

Background

In the field of wireless communication technology, mobility is one of the important functions of wireless networks. When a location of a UE (User Equipment) changes, it is required to ensure that the UE can continuously access a network, for example, continuously ensure a communication service between the UE and a base station.

However, in practical applications, the inventor of the present application finds that, after a network management person changes network management parameters, for example, after configuration information of a cell is changed, when a UE moves between cells, a situation that a source cell cannot be successfully switched to a target cell easily occurs, that is, a cell handover fails. The inventor analyzes and finds that the main reason of the situation is that: when the information of the cell is changed, the information of the neighboring cell is not updated in time, which results in the failure of switching. Accordingly, there is a need for improvement in the art.

Disclosure of Invention

The invention aims to provide a method, a device and a base station for optimizing parameters of a neighboring cell, which can identify the parameter error of the neighboring cell and automatically optimize the parameters of the neighboring cell before switching to a target cell.

To solve the above technical problem, an embodiment of the present invention provides a method for optimizing parameters of a neighboring cell, including:

receiving a switching measurement report sent by user equipment;

determining a target cell according to the switching measurement report;

acquiring cell parameters of the target cell from the determined target cell; and

and updating the neighbor cell information when the obtained cell parameter of the target cell is identified to be inconsistent with the pre-stored cell parameter of the target cell.

Wherein the cell parameters include: cell frequency points and physical cell identities.

Wherein the determining a target cell according to the handover measurement report includes:

inquiring prestored adjacent cell information to obtain a cell frequency point in the switching measurement report and a cell global identifier corresponding to the physical cell identifier; and

and determining the cell corresponding to the cell global identity as the target cell.

Wherein the obtaining of the cell parameter of the target cell from the determined target cell comprises:

Sending a switching request message to the determined target cell;

receiving a switching response message returned by the target cell; and

and acquiring the cell parameters of the target cell from the switching response message.

Wherein the updating of the neighbor cell information comprises:

and updating the pre-stored cell parameters of the target cell according to the acquired cell parameters of the target cell.

Wherein the updating of the neighbor cell information comprises:

and deleting the information of the specific neighbor cell according to the acquired cell parameter of the target cell, wherein the cell frequency point and the physical cell identifier in the information of the specific neighbor cell are the same as the acquired cell frequency point and physical cell identifier of the target cell.

Wherein the updating the neighbor cell information further comprises:

sending a cell global identity measurement message to the user equipment, wherein the cell global identity measurement message comprises: a physical cell identifier carried by the handover measurement report;

receiving a cell global identity measurement report returned by the user equipment; and

and adding neighbor cell information according to the cell global identity measurement report.

When the acquired cell parameter of the target cell is identified to be inconsistent with the prestored cell parameter of the target cell, the method further comprises the following steps:

And sending a switching cancellation message to the target cell.

When the acquired cell parameter of the target cell is identified to be consistent with the pre-stored cell parameter of the target cell, the method further comprises the following steps:

and sending a cell switching command to the user equipment.

The embodiment of the present invention further provides a neighboring cell parameter optimization device, including:

a receiving module, configured to receive a handover measurement report sent by a user equipment;

a determining module, configured to determine a target cell according to the handover measurement report;

an obtaining module, configured to obtain a cell parameter of the target cell from the determined target cell; and

and the updating module is used for updating the neighbor cell information when the obtained cell parameter of the target cell is identified to be inconsistent with the pre-stored cell parameter of the target cell.

Wherein the determining module comprises:

the query unit is used for querying prestored neighbor cell information to obtain a cell frequency point in the switching measurement report and a cell global identifier corresponding to the physical cell identifier; and

and the determining unit is used for determining the target cell from the cell corresponding to the cell global identity.

Wherein, the obtaining module includes:

a sending unit, configured to send a handover request message to the determined target cell;

a receiving unit, configured to receive a handover response message returned by the target cell; and

and an obtaining unit, configured to obtain the cell parameter of the target cell from the handover response message.

Wherein the update module comprises:

and the updating unit is used for updating the prestored cell parameters of the target cell according to the acquired cell parameters of the target cell.

Wherein the update module comprises:

and the deleting unit is used for deleting the information of the specific neighbor cell according to the acquired cell parameter of the target cell, wherein the cell frequency point and the physical cell identifier in the information of the specific neighbor cell are the same as the acquired cell frequency point and physical cell identifier of the target cell.

Wherein the update module further comprises:

a sending unit, configured to send a cell global identity measurement message to the ue, where the cell global identity measurement message includes: a physical cell identifier carried in the handover measurement report;

a receiving unit, configured to receive a cell global identity measurement report returned by the ue; and

And the adding unit is used for adding the neighbor cell information according to the cell global identity measurement report.

The device also comprises a sending module, which is used for sending a switching cancellation message to the target cell when the obtained cell parameter of the target cell is identified to be inconsistent with the prestored cell parameter of the target cell.

Wherein the apparatus further comprises: and the sending module is used for sending a cell switching command to the user equipment when the obtained cell parameter of the target cell is identified to be consistent with the pre-stored cell parameter of the target cell.

An embodiment of the present invention further provides a base station, including: a memory; a wireless communication circuit, configured to receive a handover measurement report sent by a user equipment; a processor configured to determine a target cell based on the handover measurement report received by the wireless communication circuitry; and an inter-cell communication interface for acquiring cell parameters of the target cell from the determined target cell; the processor is further configured to update the neighboring cell information when the acquired cell parameter of the target cell is inconsistent with the cell parameter of the target cell pre-stored in the memory.

The invention has the beneficial effects that:

in the embodiment of the invention, before switching the cell, the operation of identifying whether the current cell parameter of the target cell is consistent with the pre-stored cell parameter of the target cell is added, so that when the pre-stored parameter of the target cell is wrong, the mistake can be identified, and when the mistake is identified, the adjacent cell information can be automatically updated.

Drawings

Fig. 1 and 2 are schematic diagrams of cell networking according to an embodiment of the present invention;

FIG. 3 is a flowchart illustrating a method for optimizing parameters of a neighboring cell according to an embodiment of the present invention;

FIG. 4 is a schematic flow chart diagram of an embodiment of step 304 in FIG. 3;

FIG. 5 is a schematic flow chart diagram of an embodiment of step 306 in FIG. 3;

FIG. 6 is a schematic flow chart diagram of an embodiment of step 308 in FIG. 3;

FIG. 7 is an interaction diagram of a detailed embodiment of the elements of FIG. 2;

fig. 8 is a schematic structural diagram of an embodiment of a neighbor cell parameter optimization apparatus according to the present invention;

FIG. 9 is a schematic block diagram of an embodiment of the determination module of FIG. 8;

FIG. 10 is a schematic block diagram of an embodiment of the acquisition module of FIG. 8;

FIG. 11 is a schematic block diagram of an embodiment of the update module of FIG. 8;

fig. 12 is a schematic structural diagram of an embodiment of a base station of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solutions claimed in the claims of the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments.

Fig. 1 and 2 are schematic diagrams illustrating a cell networking architecture according to an embodiment of the present invention. In the figure, a cell in LTE (Long Term Evolution) is taken as an example for explanation. Among them, LTE is a long term evolution of UMTS (Universal Mobile Telecommunications System) technology standard established by The 3rd Generation Partnership Project (3 GPP) organization.

As shown in fig. 1, the architecture includes: cell 1 in enodeb (evolved node B)1, cell 2 in enodeb 2, and cell 3 in enodeb 2. Each Cell may include three Cell parameters, which are a frequency point, an eCGI (E-UTRAN Cell Global identity ), and a PCI (Physical Cell identity). Note that enodebs and ecgis are the names of base stations and global cell identities, respectively, in LTE, and in other communication systems, they may be called otherwise.

As shown in fig. 1, the cell parameters of cell 1 are: f1, eCGI1 and PCI1, and the cell parameters of cell 2 are: f2, eCGI2 and PC2, and the cell parameters of cell 3 are: f3, eCGI3 and PCI 3. The cell 2 and the cell 3 are both adjacent cells of the cell 1, and the cell 1 stores an adjacent cell relation table (or an adjacent cell information table) to record information of the adjacent cells, for example, records related parameters of the cell 2 and the cell 3. In the architecture shown in fig. 1, when a UE (user equipment) such as a smart phone moves in the direction of the arrow in the figure, the UE can be successfully handed over from cell 1 to cell 2 because the parameters of cell 2 recorded in the neighbor relation table of cell 1 are consistent with the actual parameters of cell 2.

Fig. 2 is a schematic diagram of a cell frame after a network administrator reconfigures parameters of each cell in fig. 1. As shown in fig. 2, the PCI of cell 2 is configured by PCI2 as PCI3, and the PCI of cell 3 is configured by PCI3 as PCI 2. Note, however, that at this time, in cell 1, the recorded neighbor relation table still has no change, that is, in the neighbor relation table, the PCI of cell 2 is still PCI2, and the PCI of cell 3 is still PCI 3. Then at this time, when the UE moves in the direction of the arrow shown in fig. 2, the handover from cell 1 to cell 2 cannot be successful. This is because, when the UE determines that it meets the handover gate direction, it sends a handover measurement report to the cell 1, where the handover measurement report carries information (such as F2 and PCI3) of a target cell (cell 2), and after the cell 1 receives the handover measurement report, the cell 1 queries the neighbor relation table according to PCI3 in the report, and obtains that eCGI corresponding to PCI3 is eCGI3, so that the cell 3 corresponding to eCGI3 is used as the target cell, thereby guiding the UE to handover to the cell 3. However, cell 3 is not the actual target cell in the UE moving direction, so cell 1 directs the UE to handover to cell 3, which inevitably results in a handover failure. Therefore, a mechanism is needed to avoid the above situation.

As shown in fig. 3, it is a flowchart of a neighboring cell parameter optimization method according to a first embodiment of the present invention. It includes:

step 302: and receiving a switching measurement report sent by the user equipment.

Step 304: the target cell is determined based on the handover measurement report received in step 302.

Step 306: cell parameters for the target cell are obtained from the target cell determined in step 304.

And

step 308: and when the cell parameter of the acquired target cell is identified to be inconsistent with the pre-stored cell parameter of the target cell, updating the neighbor cell information.

It should be noted that the embodiment of the present invention may be used in a source cell (for example, a base station to which the source cell belongs), that is, a cell to which the UE currently accesses, and is illustrated in fig. 1 and 2 as an example, where the source cell is cell 1.

In this embodiment, before cell handover, an operation of identifying whether the current cell parameter of the target cell is consistent with the pre-stored cell parameter of the target cell is added, so that when the pre-stored parameter of the target cell is wrong, the error can be identified, and when the error is identified, the neighboring cell information can be automatically updated.

In step 302, the received handover measurement report may include: the cell parameter of the target cell is obtained by measuring the target cell by the UE, and is therefore the current latest cell parameter of the target cell. As can be seen from the foregoing description of the embodiments, the cell parameters generally include: frequency bins, CGI, and PCI. However, only the frequency point and the PCI in the cell parameter may be included in the handover measurement report. That is, the UE generally does not measure the CGI of the target cell when switching cells. However, in special cases (as indicated by the source cell), the CGI may also be measured. It should be noted that the cell to which the UE currently belongs (i.e., the cell currently providing access service for the UE) is the source cell, and the cell to which the UE is to be handed over is the target cell. In addition, when the UE measures CSRP (Reference Signal Received Power) of a Signal with the target cell to satisfy a handover threshold, the handover measurement report is transmitted to the source cell.

Therein, in step 304, the target cell may be determined in the manner of fig. 4. As shown in fig. 4, a received handover measurement report is first parsed to obtain a frequency bin and a PCI therein (step 402). Next, according to the obtained frequency point and PCI, pre-stored neighbor cell information (such as a neighbor cell relation table) is queried to obtain a CGI corresponding to the frequency point and PCI (step 404). Finally, the cell corresponding to the CGI is determined as the target cell (step 406). It should be noted that the target cell determined according to the information in the handover measurement report may not be the actual target cell.

For example, taking fig. 1 as an example, the UE measures cell 2 to obtain frequency points and PCIs of F2 and PCI2, respectively, and carries the two information into a handover measurement report to send to cell 1; the cell 1 queries an adjacent cell relation table according to F2 and PCI2, and may obtain CGIs corresponding to F2 and PCI2 as CGIs 2, thereby determining that the target cell is cell 2; the determined target cell coincides with the actual target cell.

However, taking fig. 2 as an example, the UE measures cell 2 to obtain frequency points and PCIs of F2 and PCI3, respectively, and carries the two information into a handover measurement report to send to cell 1; the cell 1 queries an adjacent cell relation table according to F2 and PCI3, and may obtain CGIs corresponding to F2 and PCI3 as CGIs 3, thereby determining that the target cell is cell 3; the target cell (cell 3) determined at this time does not coincide with the actual target cell (cell 2).

Since the target cell determined according to the handover measurement report reported by the UE may not be the actual target cell, in step 306, the cell parameters, such as frequency point and PCI, of the target cell may be obtained from the determined target cell, so as to facilitate subsequent identification. Specifically, as shown in fig. 5, it is a schematic flow chart of the embodiment of step 306. In fig. 5, first, a handover request message is sent to a certain target cell (step 502); next, a handover response message returned by the target cell is received (step 504), where the handover response message includes: frequency points and PCI in the cell parameters. Finally, cell parameters of the target cell, i.e. frequency point and PCI, are obtained from the handover response message (step 506). Taking fig. 1 as an example, cell 1 sends a handover request message to cell 2, and then cell 2 returns its frequency point F2 and PCI2 to cell 1. Taking fig. 2 as an example, cell 1 sends a handover request message to cell 3, and then cell 3 returns its frequency point F2 and PCI2 to cell 1.

After the cell parameter of the target cell is obtained through step 306, it may be compared whether the obtained cell parameter of the target cell is consistent with the pre-stored cell parameter of the target cell in step 308. If the two signals are consistent, it indicates that handover to the target cell can be performed, for example, a cell handover command may be sent to the UE to guide the UE to handover to the target cell. For example, taking fig. 1 as an example, when comparing that the obtained F2 and PCI2 of the cell 2 are the same as the stored F2 and PCI2 of the cell 2 in the neighbor relation table, the cell 1 may control the UE to switch to the cell 2. If not, it indicates that the handover to the target cell is impossible, and the source cell may send a handover cancel message to the determined target cell. For example, taking fig. 2 as an example, when cell 1 compares that the obtained F2 and PCI2 of cell 3 are at least partially different from the stored F2 and PCI3 of cell 3 in the neighbor relation table, it abandons to control the UE to switch to cell 3.

More importantly, when the two neighboring cells are inconsistent, the source cell can update the neighboring cell information of the source cell, so that the subsequent handover can be successful. As shown in fig. 6, is a flowchart illustrating an embodiment of the method for updating neighboring cell information in step 308. As shown in fig. 6, according to the acquired cell parameter of the target cell, the pre-stored cell parameter of the target cell is updated (step 602). For example, in the example of fig. 2, the pre-stored cell parameters of the target cell (cell 3) include: f2 and PCI3, and the cell parameters of the target cell (cell 3) actually obtained include: f2 and PCI2, thus modifying the PCI in the prestored cell parameters of the target cell (cell 3) from PCI3 to PCI 2. Since F2 and PCI2 already correspond to cell 3, there is a problem with the neighbor cell information that contains F2 and PCI2 and is stored in cell 1. Therefore, according to the acquired cell parameter of the target cell, deleting the information of the specific neighboring cell (step 604); the cell frequency point and the CGI in the information of the specific neighboring cell are the same as the cell frequency point and the CGI of the target cell, that is, the neighboring cell is queried by using the cell frequency point and the CGI of the target cell, and the queried neighboring cell is completely deleted. Taking the embodiment of fig. 2 as an example, F2 and PCI2 are used to query the neighbor relation table, and if the cell 2 can be queried, the information of the cell 2 is deleted from the neighbor relation table. Next, a CGI measurement message is sent to the UE (step 606), where the CGI measurement message includes: the PCI carried in the foregoing measurement report, wherein taking fig. 2 as an example, the PCI3 is carried in the CGI measurement message. Next, a CGI measurement report returned by the UE is received (step 608), the CGI measurement report includes a CGI corresponding to PCI3, and taking fig. 2 as an example, the CGI included in the CGI measurement report is CGI 3. Finally, according to the CGI measurement report, add neighbor cell information (step 610), taking fig. 2 as an example, add cell 2 to the neighbor cell relation table (F2, CGI2, PCI 3).

It should be noted that, in the foregoing embodiment, the embodiment of the present invention is described by taking only the case that the PCI parameter of the cell is modified by the network administrator, but in practical application, it is also possible that the frequency point of the cell is modified, or both the frequency point and the PCI of the cell are modified. The processing of these cases is similar to that of the previous embodiment, and is not described herein.

Referring to fig. 7, the following describes an interaction procedure among the UE, the cell 1, the cell 2, and the cell 3 in fig. 2 in detail to describe an embodiment of the present invention.

Step 702: the UE measures that the RSRP of the signal of the cell 2 meets the switching measurement threshold, and the UE sends a switching measurement report to the cell 1.

Step 704: the cell 1 receives the switching measurement report, inquires the cell 3 according to the PCI and the frequency point in the switching measurement report, and sends a switching request to the cell.

Step 706: and the cell 1 receives the switching request response message from the cell 3, analyzes the message content and acquires the frequency point and the PCI of the cell 3.

Step 710: and the cell 1 compares the acquired frequency point and PCI of the cell 3 with the PCI and frequency point of the cell 3 locally configured in the cell 1 to make switching judgment. If the inconsistency is found, go to step 710: and updating the information of the cell 3 configured in the cell 1 by using the acquired PCI and the frequency point, namely updating the information of the cell 3 to the cell 3(F2, ecg 3 and PCI2), and deleting the information of the cell 2 configured in the cell 1. Then, the process of the present invention is carried out,

Step 712: cell 1 sends a handover cancel message to cell 3.

Step 714: cell 1 issues a CGI measurement to the UE, which carries PCI 3.

Step 716: the UE measures CGI information of the cell 2 and sends CGI measurement report information to the cell 1.

Step 718: after receiving the CGI measurement report, cell 1 adds cell 2(F2, ecg 2, PCI3) as its neighbor cell.

Step 720: and the UE reports the switching measurement report again.

Step 722: the cell 1 guides the UE to switch to the cell 2, for example, sends a switching request to the cell 2 and receives a switching request response from the cell 2, analyzes the message content to obtain the frequency point and the PCI of the cell 2, and compares the frequency point and the PCI with the PCI of the cell 2 locally configured by the cell 1; and if the reconfiguration is consistent with the reconfiguration carried switching command, the air interface sends the reconfiguration carried switching command to the UE, and finally the UE is guided to be normally switched to the cell 2.

In this embodiment, before switching the cells, an operation of identifying whether the current cell parameter of the target cell is consistent with the pre-stored cell parameter of the target cell is added, so that when the pre-stored parameter of the target cell is wrong, the error can be identified, and when the error is identified, the neighboring cell information can be automatically updated.

Fig. 8 is a schematic structural diagram of a neighboring cell parameter optimization apparatus 800 according to an embodiment of the present invention, where the neighboring cell parameter optimization apparatus may be included in a base station. It includes:

A receiving module 802, configured to receive a handover measurement report sent by a user equipment.

A determining module 804, configured to determine the target cell according to the handover measurement report received by the receiving module 802.

An obtaining module 806, configured to obtain a cell parameter of the target cell from the target cell determined by the determining module 804. And

an updating module 808, configured to update the neighboring cell information when it is recognized that the cell parameter of the target cell acquired by the acquiring module 806 is inconsistent with a pre-stored cell parameter of the target cell.

The handover measurement report received by the receiving module 802 may include: the cell parameter of the target cell is obtained by measuring the target cell by the UE, and therefore is the current latest cell parameter of the actual target cell. As can be seen from the foregoing description of the embodiments, the cell parameters generally include: frequency bins, CGI, and PCI. However, only the frequency point and the PCI in the cell parameter may be included in the handover measurement report. That is, the UE generally does not measure the CGI of the target cell when switching cells. However, in special cases (as indicated by the source cell), the CGI may also be measured.

The structure of the determining module 804 may be as shown in fig. 9, and includes: the query unit 8042 is configured to query, according to the frequency point and the PCI included in the handover measurement report, pre-stored neighbor cell information (such as a neighbor cell relation table) to obtain a CGI corresponding to the frequency point and the PCI. And a determining unit 8044, configured to determine a cell corresponding to the CGI obtained by the query as a target cell.

Since the target cell determined by the determining module 804 according to the handover measurement report reported by the UE may not be the actual target cell to which the UE desires to be handed over, in the obtaining module 806, the cell parameters, such as the frequency point and the PCI, of the determined target cell may be obtained from the determined target cell, so as to facilitate subsequent identification. Specifically, as shown in fig. 10, the structure of the embodiment of the obtaining module 806 is schematically illustrated, and includes: a sending unit 8062, configured to send a handover request message to the determined target cell; a receiving unit 8064, configured to receive a handover response message returned by the target cell; and an obtaining unit 8064, configured to obtain the cell parameters, that is, the frequency point and the PCI, of the determined target cell from the handover response message.

After the cell parameter of the target cell is obtained by the obtaining module 806, it can be compared in the updating module 808 whether the obtained cell parameter of the target cell is consistent with the pre-stored cell parameter of the target cell. If the two signals are consistent, it indicates that handover to the target cell can be performed, for example, a cell handover command may be sent to the UE to guide the UE to handover to the target cell. If the determined target cell is not the actual target cell to which the UE desires to handover, the UE may send a handover cancel message to the determined target cell, where the sending operation may be performed by a sending module in the neighboring cell parameter optimization apparatus.

More importantly, when the neighbor cell information is inconsistent, the neighbor cell information can be updated, so that subsequent handover can be successful. As shown in fig. 11, it is a schematic structural diagram of an embodiment of the update module 808, which includes: an updating unit 8082, configured to update a pre-stored cell parameter of the target cell according to the obtained cell parameter of the target cell. For example, in the example of fig. 2, the pre-stored cell parameters of the target cell (cell 3) include: f2 and PCI3, and the cell parameters of the target cell (cell 3) actually obtained include: f2 and PCI2, thus modifying the PCI in the prestored cell parameters of the target cell (cell 3) from PCI3 to PCI 2.

Since F2 and PCI2 already correspond to cell 3, there is a problem with the neighbor cell information that contains F2 and PCI2 and is stored in cell 1. Accordingly, the update module 808 may further include:

a deleting unit 8084, configured to delete information of a specific neighboring cell according to the obtained cell parameter of the target cell, where a cell frequency point and a CGI in the information of the specific neighboring cell are the same as the obtained cell frequency point and CGI of the target cell, that is, the obtained cell frequency point and CGI of the target cell are used to query the neighboring cell, and all the queried neighboring cells are deleted. Taking the embodiment of fig. 2 as an example, F2 and PCI2 are used to query the neighbor relation table, and if the cell 2 can be queried, the information of the cell 2 is deleted from the neighbor relation table.

A sending unit 8086, configured to send a CGI measurement message to the UE, where the CGI measurement message includes: the PCI carried in the foregoing measurement report, wherein taking fig. 2 as an example, the PCI3 is carried in the CGI measurement message.

A receiving unit 8088, configured to receive a CGI measurement report returned by the UE, where the CGI measurement report includes a CGI corresponding to PCI3, and taking fig. 2 as an example, the CGI included in the CGI measurement report is CGI 3.

And an adding unit 8010, configured to add, according to the CGI measurement report received by the receiving unit 8088, neighboring cell information (step 610), taking fig. 2 as an example, add a cell 2 to the neighboring cell relation table (F2, CGI2, PCI 3).

Fig. 12 is a schematic structural diagram of an embodiment of a base station according to the present invention. It includes a memory 121; a wireless communication circuit (including a radio frequency remote unit, a baseband processing unit, etc.) 122, configured to receive a handover measurement report sent by a user equipment; a processor 123 configured to determine a target cell according to the handover measurement report received by the wireless communication circuit; and an inter-cell communication interface (e.g., port S1) 124 for obtaining cell parameters of the target cell from the determined target cell; wherein the processor 123 is further configured to update the neighboring cell information when the obtained cell parameter of the target cell is inconsistent with the cell parameter of the target cell pre-stored in the memory. It should be noted that the above-mentioned determining module and the updating module can be implemented by the processor 123, the above-mentioned receiving module can be implemented by the wireless communication circuit 122 herein, and the above-mentioned obtaining module can be implemented by the inter-cell communication interface 124 herein. Accordingly, further description of the functions of the wireless communication circuit 122, the processor 123 and the inter-cell communication interface 124 is mentioned above and will not be repeated herein.

It should be noted that all modules related to the present invention are logic modules, and in practical applications, one logic unit may be one physical unit, may also be a part of one physical unit, and may also be implemented by a combination of multiple physical units. In addition, in order to highlight the innovative part of the present invention, elements that are not so closely related to solving the technical problems proposed by the present invention are not introduced in the present embodiment, but this does not indicate that other elements are not present in the present embodiment.

It will be understood by those skilled in the art that all or part of the processes of the methods of the above embodiments may be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.

It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.

Claims

1. A method for optimizing parameters of a neighboring cell, comprising:

receiving a switching measurement report sent by user equipment;

determining a target cell according to the switching measurement report;

when the acquired cell parameter of the target cell is inconsistent with the pre-stored cell parameter of the target cell, updating the neighboring cell information; the cell parameters include: cell frequency points and physical cell identifiers;

the updating the neighbor cell information includes:

and deleting the information of the specific neighbor cell according to the acquired cell frequency point and the physical cell identifier of the target cell, wherein the cell frequency point and the physical cell identifier in the information of the specific neighbor cell are the same as the acquired cell frequency point and the physical cell identifier of the target cell.

2. The method of claim 1, wherein the determining a target cell according to the handover measurement report comprises:

3. The method of claim 1 or 2, wherein the obtaining the cell parameter of the target cell from the determined target cell comprises:

sending a switching request message to the determined target cell;

receiving a switching response message returned by the target cell; and

4. The neighbor cell parameter optimization method according to claim 1 or 2, wherein the updating the neighbor cell information includes:

5. The method of claim 1, wherein the updating the neighbor cell information further comprises:

6. The neighbor cell parameter optimization method according to claim 1, further comprising:

When the acquired cell parameter of the target cell is inconsistent with the pre-stored cell parameter of the target cell, sending a switching cancellation message to the target cell; and

and when the acquired cell parameter of the target cell is consistent with the pre-stored cell parameter of the target cell, sending a cell switching command to the user equipment.

7. An apparatus for optimizing neighbor cell parameters, comprising:

an updating module, configured to update neighboring cell information when the obtained cell parameter of the target cell is inconsistent with a pre-stored cell parameter of the target cell; the cell parameters include: cell frequency points and physical cell identifiers;

the update module includes:

and the deleting unit is used for deleting the information of the specific neighbor cell according to the acquired cell frequency point and the physical cell identifier of the target cell, wherein the cell frequency point and the physical cell identifier in the information of the specific neighbor cell are the same as the acquired cell frequency point and the physical cell identifier of the target cell.

8. The neighbor cell parameter optimizing apparatus according to claim 7, wherein the determining module comprises:

9. The neighbor cell parameter optimizing apparatus according to claim 7 or 8, wherein the obtaining module includes:

10. The neighbor cell parameter optimizing apparatus according to claim 7 or 8, wherein the updating module includes:

11. The neighbor cell parameter optimizing apparatus according to claim 7, wherein the updating module further comprises:

12. The neighbor cell parameter optimizing apparatus as claimed in claim 7, wherein the apparatus further comprises:

a sending module, configured to send a handover cancel message to the target cell when the obtained cell parameter of the target cell is inconsistent with a pre-stored cell parameter of the target cell; and

and the cell switching module is used for sending a cell switching command to the user equipment when the acquired cell parameter of the target cell is consistent with the pre-stored cell parameter of the target cell.

13. A base station, comprising:

a memory;

a wireless communication circuit, configured to receive a handover measurement report sent by a user equipment;

a processor configured to determine a target cell based on the handover measurement report received by the wireless communication circuitry; and

An inter-cell communication interface for acquiring cell parameters of the target cell from the determined target cell;

the processor is further configured to update neighboring cell information when the acquired cell parameter of the target cell is inconsistent with the cell parameter of the target cell pre-stored in the memory; the cell parameters include: cell frequency points and physical cell identifiers;

the updating the neighbor cell information includes:

14. The base station of claim 13, wherein the processor is specifically configured to query pre-stored neighboring cell information to obtain a cell global identity corresponding to a cell frequency point and a physical cell identity in the handover measurement report; and

15. The base station according to claim 13 or 14, wherein said inter-cell communication interface is specifically configured to: sending a switching request message to the determined target cell; receiving a handover response message returned by the target cell, wherein the handover response message comprises: a cell parameter of the target cell.