CN106817716B

CN106817716B - Compensation method and device for self-healing of cell

Info

Publication number: CN106817716B
Application number: CN201510863428.3A
Authority: CN
Inventors: 向浩求; 文绍纯
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2015-11-30
Filing date: 2015-11-30
Publication date: 2021-05-11
Anticipated expiration: 2035-11-30
Also published as: WO2017092443A1; CN106817716A

Abstract

The invention provides a method and a device for compensating self-healing of a cell, wherein the method comprises the following steps: determining a compensation cell of the fault cell; and sending a message to a base station where the compensation cell is located, wherein the message is used for indicating that the compensation cell is used for compensating the fault cell. The invention solves the problem that the blind area occurs in the area covered by the cell due to the cell failure or failure of failure recovery in the related technology, thereby achieving the technical effect of improving the user experience.

Description

Compensation method and device for self-healing of cell

Technical Field

The invention relates to the field of communication, in particular to a method and a device for compensating self-healing of a cell.

Background

With the commercial deepening of Long Term evolution (Long Term evolution, LTE for short), more and more Self-Organized network (Long Term evolution Self-Organized Networks, LTE SON for short) functions are purchased and used by operators, wherein the Self-healing function is one of the SON functions with wider application, and the LTE SON Self-healing functions are classified into the following three types according to different cell service states: district retreating self-healing, sleeping district self-healing, performance district self-healing, and the self-healing flow divide into: and in three stages of self-healing diagnosis, self-healing recovery and self-healing compensation, when the self-healing recovery fails, the self-healing compensation is carried out.

The implementation methods and the technical development levels of different stages of the self-healing function are different, especially NO better method exists for self-healing compensation at present, most of the existing self-healing compensation methods can only reduce the influence caused by self-healing, mainly by modifying some neighbor relation parameters, such as setting all neighbor Handover attributes of a fault cell as NO Handover, or to modify some restrictions of the cell on the user service, such as cell barred access (cell bar), these back-off operations, the problem that the coverage area of the fault cell has a blind area due to fault or fault recovery is not really solved, if the self-healing recovery can not make the cell normal, the cell coverage will be in a weak coverage area or a blind area for a long time, which may cause adverse effects on Key Performance Indicators (KPIs) of the network, and the user experience will also become very poor.

Aiming at the problem that a blind area appears in an area covered by a cell due to cell failure or failure of fault recovery in the related art, an effective solution is not provided at present.

Disclosure of Invention

The invention provides a cell self-healing compensation method and a cell self-healing compensation device, which are used for at least solving the problem that a blind area appears in an area covered by a cell due to cell failure or failure in fault recovery in the related art.

According to an aspect of the present invention, there is provided a method for compensating for self-healing of a cell, including: determining a compensation cell of the fault cell; and sending a message to a base station where the compensation cell is located, wherein the message is used for indicating that the compensation cell is used for compensating the fault cell.

Optionally, compensating the faulty cell using the compensating cell comprises: increasing the coverage of the compensating cell.

Optionally, before determining the compensating cell for the faulty cell, the method further comprises: determining the faulty cell, wherein the faulty cell comprises at least one of: sleeping cells, low performance cells.

Optionally, the determining the faulty cell includes: judging whether a self-healing alarm exists in a cell and whether the performance index of the cell is lower than a first preset threshold value; and determining the cell as the fault cell under the conditions that self-healing alarm exists in the cell and the performance index of the cell is lower than the first preset threshold value.

Optionally, determining the compensating cell of the faulty cell comprises: acquiring the performance index of the adjacent cell of the fault cell in a preset historical time period; and determining the compensation cell according to the performance index.

Optionally, determining the compensation cell according to the performance indicator includes: according to the performance index, counting the switching times and the switching success rate between the adjacent cell and the fault cell; wherein the number of handovers includes: the switching times from the adjacent cell to the failure cell and/or the switching times from the failure cell to the adjacent cell; the handover success rate includes: a handover success rate for handover from the neighbor cell to the failed cell and/or a handover success rate for handover from the failed cell to the neighbor cell; and determining the adjacent cell with the switching times and the switching success rate larger than a second preset threshold value in the adjacent cell as the compensation cell.

Optionally, determining the compensation cell according to the performance indicator includes: according to the performance index, counting the switching times and the switching success rate between the adjacent cell and the fault cell; wherein the number of handovers includes: the switching times from the adjacent cell to the failure cell and/or the switching times from the failure cell to the adjacent cell; the handover success rate includes: a handover success rate for handover from the neighbor cell to the failed cell and/or a handover success rate for handover from the failed cell to the neighbor cell; at least carrying out weighted calculation on the switching times and the switching success rate of the adjacent cell to obtain a weighted value of the adjacent cell; and determining the neighbor cell with the largest weight value in the neighbor cells as the compensation cell.

Optionally, at least performing weighted calculation on the handover times and the handover success rate of the neighboring cell, and obtaining a weight value of the neighboring cell includes: and performing weighted calculation on the switching times, the switching success rate and the current load of the adjacent cell to obtain the weight value of the adjacent cell.

Optionally, the method further comprises: and receiving a response message sent by the base station where the compensation cell is located, wherein the response message carries a compensation failure reason or a compensation success response.

Optionally, the reason for the failure to compensate includes at least one of: the compensating cell is already in a compensating state; the radio frequency antenna of the compensation cell is an electrically non-tunable intelligent antenna; the coverage adjustment of the compensating cell fails.

According to another aspect of the present invention, there is provided a method for compensating for self-healing of a cell, including: receiving a message sent by a base station where a fault cell is located, wherein the message carries information of a compensation cell for compensating the fault cell; compensating the faulty cell using the compensating cell.

Optionally, before compensating the faulty cell using the compensating cell, the method further includes: starting a waiting compensation timer; wherein the compensating for the faulty cell using the compensating cell is performed when the waiting compensation timer is expired.

Optionally, after starting the wait compensation timer, the method further comprises: judging whether a compensation canceling instruction sent by a base station where the fault cell is located is received before the compensation timer is overtime; and under the condition that a compensation canceling instruction sent by the base station where the fault cell is located is received before the compensation timer is overtime, canceling the step of compensating the fault cell by using the compensation cell.

Optionally, before compensating the faulty cell using the compensating cell, the method further includes: judging whether the compensation cell meets a compensation condition; and under the condition that the compensation cell meets the compensation condition, executing the step of compensating the fault cell by using the compensation cell.

Optionally, the compensation condition comprises at least one of: the compensation cell is not in a compensation state; and the radio frequency antenna of the compensation cell is an electric tuning intelligent antenna.

Optionally, in a case that it is determined that the compensation cell does not satisfy the compensation condition, the method further includes: and sending a response message to the base station where the fault cell is located, wherein the response message carries a compensation failure reason.

Optionally, after compensating the faulty cell using the compensating cell, the method further includes: receiving a stop compensation indication; and stopping using the compensation cell to compensate the fault cell according to the compensation stopping indication.

Optionally, increasing the coverage of the compensating cell comprises: sending an instruction to a Radio Remote Unit (RRU) of the compensation cell through a Base Band Unit (BBU) of the compensation cell, wherein the instruction is used for instructing the RRU to adjust down an inclination angle of an antenna of the compensation cell; and the downward inclination angle of the antenna is adjusted to be small through the RRU according to the instruction.

According to another aspect of the present invention, there is provided a compensation apparatus for self-healing of a cell, including: a first determining module, configured to determine a compensating cell of a faulty cell; a first sending module, configured to send a message to a base station where the compensation cell is located, where the message is used to instruct the compensation cell to compensate the faulty cell.

Optionally, the apparatus further comprises: a second determining module configured to determine the faulty cell, wherein the faulty cell includes at least one of: sleeping cells, low performance cells.

Optionally, the second determining module includes: the judging unit is used for judging whether a self-healing alarm exists in a cell and whether the performance index of the cell is lower than a first preset threshold value; the first determining unit is configured to determine that the cell is the faulty cell when it is determined that a self-healing alarm exists in the cell and the performance index of the cell is lower than the first preset threshold.

Optionally, the first determining module includes: an obtaining unit, configured to obtain a performance index of a neighboring cell of the faulty cell within a preset historical time period; a second determining unit, configured to determine the compensation cell according to the performance indicator.

Optionally, the second determining unit includes: a first counting subunit, configured to count, according to the performance index, the number of times of switching and a success rate of switching between the neighboring cell and the faulty cell; wherein the number of handovers includes: the switching times from the adjacent cell to the failure cell and/or the switching times from the failure cell to the adjacent cell; the handover success rate includes: a handover success rate for handover from the neighbor cell to the failed cell and/or a handover success rate for handover from the failed cell to the neighbor cell; a first determining subunit, configured to determine, as the compensation cell, an adjacent cell in the adjacent cell, where the number of times of handover and the handover success rate are greater than a second preset threshold.

Optionally, the second determining unit includes: a second counting subunit, configured to count, according to the performance index, the number of times of switching and a success rate of switching between the neighboring cell and the faulty cell; wherein the number of handovers includes: the switching times from the adjacent cell to the failure cell and/or the switching times from the failure cell to the adjacent cell; the handover success rate includes: a handover success rate for handover from the neighbor cell to the failed cell and/or a handover success rate for handover from the failed cell to the neighbor cell; a calculating subunit, configured to perform weighted calculation on at least the handover times and the handover success rate of the neighboring cell to obtain a weight value of the neighboring cell; a second determining subunit, configured to determine, as the compensation cell, a neighboring cell with a largest weight value among the neighboring cells.

Optionally, the computing subunit is configured to: and performing weighted calculation on the switching times, the switching success rate and the current load of the adjacent cell to obtain the weight value of the adjacent cell.

Optionally, the apparatus further comprises: a first receiving module, configured to receive a response message sent by a base station where the compensation cell is located, where the response message carries a compensation failure reason or a compensation success response.

According to another aspect of the present invention, there is provided a compensation apparatus for self-healing of a cell, including: a second receiving module, configured to receive a message sent by a base station where a faulty cell is located, where the message carries information of a compensation cell used for compensating the faulty cell; a using module for using the compensating cell to compensate the faulty cell.

Optionally, the usage module comprises: an increasing unit, configured to increase a coverage area of the compensating cell.

Optionally, the apparatus further comprises: the starting module is used for starting the waiting compensation timer; wherein the using module is configured to use the compensating cell to compensate the faulty cell when the waiting compensation timer is expired.

Optionally, the apparatus further comprises: a first judging module, configured to judge whether a compensation cancellation instruction sent by a base station where the faulty cell is located is received before the compensation timer expires; and a cancellation module, configured to cancel, when receiving a cancellation compensation instruction sent by a base station where the faulty cell is located before the first determination module determines that the compensation timer is overtime, the step of performing, by the use module, compensation on the faulty cell by using the compensation cell.

Optionally, the apparatus further comprises: the second judgment module is used for judging whether the compensation cell meets the compensation condition; the using module is configured to use the compensating cell to compensate the faulty cell when the second determining module determines that the compensating cell satisfies the compensation condition.

Optionally, the apparatus further comprises: and a second sending module, configured to send a response message to the base station where the faulty cell is located when the second determining module determines that the compensation cell does not meet the compensation condition, where the response message carries a compensation failure reason.

Optionally, the apparatus further comprises: a third receiving module, configured to receive a stop compensation indication; and the stopping module is used for stopping the using module from executing the step of using the compensation cell to compensate the fault cell according to the compensation stopping indication.

Optionally, the increasing unit includes: a sending subunit, configured to send, through the baseband processing unit BBU of the compensation cell, an instruction to a radio remote unit RRU of the compensation cell, where the instruction is used to instruct the RRU to adjust a downtilt angle of an antenna of the compensation cell; and the adjusting subunit is used for reducing the downward inclination angle of the antenna according to the instruction through the RRU.

According to the invention, the base station where the fault cell is located is adopted to respectively send messages to the base stations where the acquired one or more compensation cells are located so as to indicate the compensation cells to compensate the fault cell, and the mode that the compensation cells compensate the fault cell is adopted, so that the problem that the coverage area of the cell has a blind area due to the failure of the cell or the failure of the recovery of the cell failure in the prior art is solved, and the effects of improving the user experience and improving the key performance indicator KPI of the commercial network are further achieved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

fig. 1 is a first flowchart of a compensation method for self-healing of a cell according to an embodiment of the present invention;

fig. 2 is a second flowchart of a compensation method for self-healing of a cell according to an embodiment of the present invention;

fig. 3 is a first block diagram of a compensation apparatus for self-healing a cell according to an embodiment of the present invention;

fig. 4 is a first structural block diagram of an alternative compensation device for self-healing of a cell according to an embodiment of the present invention;

fig. 5 is a block diagram of an alternative structure of a compensation apparatus for self-healing of a cell according to an embodiment of the present invention;

fig. 6 is a block diagram of an alternative structure of a compensation apparatus for self-healing of a cell according to an embodiment of the present invention;

fig. 7 is a block diagram of an alternative structure of a compensation apparatus for self-healing of a cell according to an embodiment of the present invention;

fig. 8 is a block diagram of a second structural block diagram of a compensation device for self-healing of a cell according to an embodiment of the present invention;

fig. 9 is a block diagram of an alternative structure of a compensation apparatus for self-healing of a cell according to an embodiment of the present invention;

fig. 10 is a block diagram six of an alternative structure of a compensation apparatus for self-healing of a cell according to an embodiment of the present invention;

fig. 11 is a block diagram seven of an alternative structure of a compensation device for self-healing of a cell according to an embodiment of the present invention;

fig. 12 is a block diagram eight of an alternative structure of a compensation apparatus for self-healing of a cell according to an embodiment of the present invention;

fig. 13 is a block diagram nine alternative structure of a compensation apparatus for self-healing of a cell according to an embodiment of the present invention;

fig. 14 is a flowchart of a method of compensating for self-healing of a cell according to an alternative embodiment of the present invention;

fig. 15 is a schematic diagram of a compensating cell compensating for a failed cell in accordance with an alternative embodiment of the present invention;

fig. 16 is a schematic diagram of a failure cell self-healing compensation success according to an alternative embodiment of the present invention;

fig. 17 is a schematic diagram of a failed cell self-healing compensation cancellation according to an alternative embodiment of the present invention;

fig. 18 is a schematic diagram of a failed cell self-healing compensation failure according to an alternative embodiment of the present invention;

fig. 19 is a schematic diagram of a failed cell self-healing compensation recovery according to an alternative embodiment of the present invention.

Detailed Description

The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

In this embodiment, a method for compensating for self-healing of a cell is provided, and fig. 1 is a first flowchart of a method for compensating for self-healing of a cell according to an embodiment of the present invention, as shown in fig. 1, the process includes the following steps:

step S102, determining a compensation cell of the faulty cell, where the number of the determined compensation cells may be one or multiple.

And step S104, sending a message to the base station where the compensation cell is located, wherein the message is used for indicating that the compensation cell is used for compensating the fault cell.

Through the steps, the base station where the fault cell is located sends messages to the obtained base stations where the one or more compensation cells are located respectively so as to indicate the compensation cells to compensate the fault cell.

In an optional embodiment, before performing self-healing Compensation on a faulty Cell, a message CONFIGURATION UPDATE message (eNB CONFIGURATION UPDATE) may be sent To a base station where one or more selected compensating Cells are located, where the message is a third Generation Partnership Project (3 GPP) protocol existing message, Compensation Cell Information (Compensation Cell Information) is added To a service Cell To Delete message body of the eNB CONFIGURATION UPDATE message, and a base station receiving the message may search for a corresponding compensating Cell according To a Cell Global Identifier (E-UTRAN Cell Global Identifier, gi Cell Information) in the Compensation Cell Information message.

There are many ways to compensate the faulty cell by using the compensating cell, and in an alternative embodiment, the compensating of the faulty cell can be implemented by increasing the coverage of the compensating cell.

There may be many types of failure of the cell, and in an alternative embodiment, the failed cell may be at least one of a sleeping cell or a low performance cell. In this alternative embodiment, if the base station monitors that the cell satisfies at least one of the sleeping cell and the low performance cell, it is determined that the cell is a faulty cell.

For example, in an optional embodiment, it may be determined whether the cell has a self-healing alarm and whether the performance index of the cell is lower than a first preset threshold, and then, in a case that it is determined that the cell has the self-healing alarm and the performance index of the cell is lower than the first preset threshold, the cell is determined to be a faulty cell. In this optional embodiment, the self-healing alarms and performance indicators of multiple cells may be monitored in real time, and in this optional embodiment, the performance indicators may be key performance indicators KPIs. And if the self-healing alarm exists and the performance index is smaller than a first preset threshold value, determining that the cell is a fault cell, namely determining that the cell is at least one of a sleeping cell and a low-performance cell. It should be noted that, when the cell satisfies the serving cell, the compensation method in this embodiment may not be used for processing in consideration of the specificity of the state property of the serving cell.

When monitoring the performance index, the performance index of the neighbor cell of the failed cell in a preset time period can be obtained, and then the compensation cell is determined from the neighbor cell according to the performance index. For example, the base station where the faulty cell is located may obtain, from the network management center, the key performance indicator KPI of the neighboring cell within a preset time, and search for the compensating cell from the multiple neighboring cells according to the KPI. The preset time can be selected to be three days, five days or one week. Preferably, in the embodiment, KPIs of near three days of neighbor cells of the failed cell may be obtained.

The method for determining the compensation cell of the faulty cell according to the performance index may be various, and in an optional embodiment, the switching times and the switching success rate between the neighboring cell and the faulty cell may be counted according to the performance index; wherein, the switching times include: switching times from the adjacent cell to the failure cell and/or switching times from the failure cell to the adjacent cell; the handover success rate includes: and then determining the adjacent cell with the switching times and the switching success rate larger than a second preset threshold value in the adjacent cell as a compensation cell.

In this optional embodiment, a second preset Threshold may be added, where the second preset Threshold may include a Handover Number Threshold (Handover Number Threshold) and a Handover Success rate Threshold (Handover Success Threshold). For example, the initial determination may be performed on the number of handovers in approximately 3 days and the handover success rate for all neighboring cells of the faulty cell acquired in the above step. If the switching times of the adjacent cell to the fault cell are judged to be larger than the switching time threshold, and the switching success rate of the adjacent cell to the fault cell is judged to be larger than the switching success rate threshold, determining the adjacent cell as a compensation cell; and if the switching times of the fault cell to the adjacent cell are judged to be larger than the switching time threshold and the switching success rate of the fault cell to the adjacent cell is judged to be larger than the switching success rate threshold, determining the adjacent cell as a compensation cell.

The method for determining the compensation cell of the faulty cell according to the performance index can be various, and in an optional embodiment, the switching times and the switching success rate between the adjacent cell and the faulty cell can be counted according to the performance index; wherein, the switching times include: switching times from the adjacent cell to the failure cell and/or switching times from the failure cell to the adjacent cell; the handover success rate includes: the method comprises the steps of switching from a neighbor cell to a failure cell, and/or switching from the failure cell to the neighbor cell, then at least carrying out weighted calculation on the switching times and the switching success rate of the neighbor cell to obtain the weight value of the neighbor cell, and finally determining the neighbor cell with the largest weight value in the neighbor cell as a compensation cell.

For example, a weighting coefficient P1 of the handover number threshold in the above embodiment and a weighting coefficient P2 of the handover success rate threshold in the above embodiment may be set for each neighboring cell, where P1+ P2 is 100%, and the values of P1 and P2 are obtained by simulation of network operation data. And weighting and summing the switching times of each adjacent cell to the fault cell and the switching success rate of the adjacent cell to the fault cell according to the weighting coefficients P1 and P2 to obtain the weight value of each adjacent cell, and determining a compensation cell according to the weight value of each adjacent cell.

In the process of determining the compensating cells, candidate compensating cells may be selected first, for example, candidate compensating cells may be selected preliminarily according to the calculated weight value of each neighboring cell, where the number of candidate compensating cells may be one or more.

The preliminary selection of candidate compensatory cells may include the following two ways:

in a first mode

And (4) arranging the weight value results of each adjacent cell in sequence (descending and ascending) to obtain a sequencing queue. If the order is descending order, selecting the forefront (namely, the weight value is larger) in the order queue, and taking the adjacent cell which can realize X2 connection with the fault cell as a candidate compensation cell; if there are multiple candidate compensating cells, there are cross-station neighbor cells with X2 coupling between the candidate compensating cells.

Mode two

And selecting a cell meeting the condition as a candidate compensation cell from the neighbor cells without sorting the weight values of all the neighbor cells, wherein the condition is that the neighbor cell with the larger weight value in the X2 connection with the fault cell is the candidate compensation cell. If the number of the candidate compensating cells is multiple, the base stations to which the candidate compensating cells belong are different base stations.

As another optional implementation of determining the compensation cell, the load condition of the neighboring cell may also be considered, that is, the number of times of handover of the neighboring cell, the handover success rate, and the current load of the neighboring cell are weighted and calculated to obtain the weight value of the neighboring cell. In this optional embodiment, the weight values of the neighboring cells are obtained according to the handover times, handover success rate, and load conditions of the neighboring cells, and a cell with a relatively frequent handover with the faulty cell, a relatively high handover success rate, and a relatively small load may be selected as the compensation cell from the plurality of neighboring cells according to the weight values.

In this alternative embodiment, a Load Threshold (Load Threshold) may be added. For example, the method for determining candidate compensating cells in the first mode determines candidate compensating cells according to the weight values calculated in the present optional embodiment. And judging whether the load of the candidate compensation cell exceeds a load threshold, and if the load of the candidate compensation cell does not exceed the load threshold, determining the candidate cell as the compensation cell. Otherwise, searching candidate compensation cells meeting the conditions in the adjacent cells through the first mode or the second mode to serve as the compensation cells.

If the compensation cell meeting the condition is not found in the adjacent cells, the compensation for the fault cell is ended in failure. At this time, self-healing compensation is performed by adopting a method of modifying the switching attribute of the neighboring cell into 'switching forbidding' and 'the failure cell is set to be access forbidding', so as to reduce the influence caused by the failure cell which cannot self-heal.

In another optional embodiment, a response message sent by a base station where the compensation cell is located may also be received, where the response message carries a compensation failure reason, where the compensation failure reason includes at least one of the following:

the first reason is as follows: the compensating cell is already in the compensating state.

A compensating cell can compensate at most once at the same time, i.e. only one faulty cell can be compensated at any time. If the base station of the compensation cell receives the messages sent by the base stations of the plurality of fault cells at the same time and the same cell is required to perform compensation, the compensation is ended in failure.

Therefore, the determination as to whether the Compensation cell identified in the above step is a Compensation cell is performed, and if it is determined that the Compensation cell is in the Compensation state, the message eNB CONFIGURATION FAILURE sent by the base station where the Compensation cell is located is received, and the FAILURE cause value is Compensation FAILURE. Wherein, the compensation cell in the compensation state means that the compensation cell is currently used as the compensation cell of other fault cells.

In addition, if all the messages received by the faulty cell and replied by the base station where the compensation cell is located are compensation failure messages, the faulty cell performs self-healing compensation by adopting a method of modifying the switching attribute of the neighboring cell into 'switching forbidding' and 'the faulty cell is set to be access forbidding'.

The second reason is that: and the radio frequency antenna of the compensation cell is an electrically non-tunable intelligent antenna.

If the radio frequency antenna of the Compensation cell is judged to be the non-electric regulation intelligent antenna, receiving a message eNB CONFIGURATION FAILURE sent by a base station where the Compensation cell is located, returning a FAILURE cause value to be Compensation FAILURE, and ending the Compensation on the FAILURE cell in FAILURE.

In addition, if the radio frequency antennas of all the compensation cells are non-electrically tunable smart antennas, the faulty cell performs self-healing compensation by modifying the neighbor cell switching attribute to 'no switching' and setting the faulty cell to 'no access'.

The third reason is that: the coverage adjustment of the compensating cell fails.

If the coverage area adjustment of the Compensation cell fails, for example, the antenna angle adjustment of the Compensation cell fails, the message eNB CONFIGURATION FAILURE sent by the base station where the Compensation cell is located is received, and the FAILURE cause value is returned to the Compensation FAILURE, and the Compensation of the failed cell is ended in FAILURE.

Fig. 2 is a second flowchart of a compensation method for self-healing of a cell according to an embodiment of the present invention, and as shown in fig. 2, the process includes the following steps:

step S202, receiving a message sent by a base station where a faulty cell is located, wherein the message carries information of a compensation cell for compensating the faulty cell.

And step S204, compensating the fault cell by using the compensation cell.

Through the steps, the base station of the compensation cell receives the message sent by the base station of the fault cell, the coverage range of the compensation cell is enlarged according to the received message, the compensation for the fault cell is realized, and the compensation cell is adopted to compensate the fault cell, so that the problem that the blind area occurs in the coverage area of the cell due to the fact that the cell fails or the cell fails in fault recovery in the prior art is solved, and the technical effect of improving the user experience is achieved.

There may be many kinds of messages received from the base station where the faulty cell is located, and in an optional embodiment, before performing self-healing compensation on the faulty cell, a message eNB CONFIGURATION UPDATE sent from the base station where the faulty cell is located may be received, where the message is an existing message in a 3GPP protocol. And adds Information of the Compensation cell (Compensation cell Information) To the Served Cells To Delete message body of the eNB CONFIGURATION UPDATE message. After receiving the eNB CONFIGURATION UPDATE message, the base station where the Compensation cell is located may search for the corresponding Compensation cell according to the cell global identifier ECGI in the Compensation cell Information message, and compensate the faulty cell using the corresponding Compensation cell.

The compensating cell compensates the faulty cell in many ways, and in an alternative embodiment, the compensating of the faulty cell can be implemented by increasing the coverage area of the compensating cell.

In an optional embodiment, an instruction is sent to a Radio Remote Unit (RRU) where the compensation cell is located by using a baseband processing unit (BBU) where the compensation cell is located, wherein the instruction is used for instructing the RRU to adjust a downtilt angle of an antenna of the compensation cell, and then the RRU adjusts the downtilt angle of the antenna according to the instruction.

In this optional embodiment, a command for adjusting a downtilt angle of an antenna may be sent to a Radio Frequency remote Unit (Radio Frequency Resource Unit, abbreviated as RRU) where the compensation cell is located by a Base Band Unit (BBU) where the compensation cell is located, where the antenna is an electrically-tuned smart antenna. After receiving the adjustment command, storing the current parameters of the RRU antenna, and then the RRU automatically adjusts the downtilt angle according to the command to increase the coverage of the compensation cell, thereby achieving the purpose of compensating the area covered by the faulty cell, wherein the angle adjustment range can be set through the data after the operation data simulation. After the downtilt angle of the antenna is successfully adjusted, the RRU can also send a message that the adjustment of the downtilt angle of the reply electrical is successful to the BBU.

In an optional embodiment, before compensating the faulty cell using the compensating cell, a waiting compensation timer may be further started, wherein the step of compensating the faulty cell using the compensating cell is performed in case of timeout of the waiting compensation timer.

In this alternative embodiment, if the base station where the compensating cell is located receives the CONFIGURATION UPDATE message (eNB CONFIGURATION UPDATE), a waiting compensation timer may be started, for example, by starting the waiting compensation timer through the bbu (base Band unit) where the compensating cell is located. If the waiting compensation timer is overtime, the BBU sends an instruction of reducing the downward inclination angle of the antenna to the RRU where the corresponding compensation cell is located, so as to increase the coverage area of the compensation cell.

In another optional embodiment, after the waiting compensation timer is started, whether a compensation cancellation instruction sent by the base station where the faulty cell is located is received before the compensation timer is overtime is judged; and under the condition that a compensation canceling instruction sent by the base station where the fault cell is located is received before the compensation timer is overtime, canceling the step of compensating the fault cell by using the compensation cell.

If a new message eNB CONFIGURATION UPDATE is received before the compensation waiting timer expires, and the message carries a message body (Served Cells To Add). The Compensation cell Information of neighbor Information in the message body carries a cancellation Compensation Indication (reactive Compensation Indication), the Compensation cell matches itself according to the cell global identifier ECGI in the neighbor Information message, and after the matching is successful and the cancellation Compensation Indication (reactive Compensation Indication) exists, the Compensation cell stops the Compensation waiting timer, and the faulty cell does not need to be compensated this time.

In another optional embodiment, when the faulty cell is compensated by using the compensating cell, it may be further determined whether the compensating cell satisfies a compensation condition, and then, in a case that it is determined that the compensating cell satisfies the compensation condition, the step of compensating the faulty cell by using the compensating cell is performed, for example, the compensating of the faulty cell is implemented by increasing a coverage area of the compensating cell, where the compensation condition includes at least one of:

the first condition is as follows: the compensating cell is not in a compensating state.

A compensating cell can compensate at most once at the same time, i.e. only one faulty cell can be compensated at any time.

The method can determine whether the compensation cell is the compensation cell, and if the compensation cell is not in the compensation state, the compensation cell is used for compensating the fault cell. Wherein, the compensation cell in the compensation state means that the compensation cell is currently used as the compensation cell of other fault cells.

And a second condition: and the radio frequency antenna of the compensation cell is an electrically-adjusted intelligent antenna.

And if the radio frequency antenna of the compensation cell is judged to be the electric tuning intelligent antenna, the compensation cell is used for compensating the fault cell.

And (3) carrying out a third condition: the coverage of the compensating cell is successfully adjusted.

And if the radio frequency antenna of the compensation cell is judged to be the electric tuning intelligent antenna, the BBU where the compensation cell is located sends a command of adjusting the downward inclination angle of the electric tuning intelligent antenna to the RRU where the compensation cell is located. After receiving the command, the RRU adjusts the downtilt angle, and if the downtilt angle is successfully adjusted, the coverage of the compensation cell is successfully adjusted, i.e., the compensation cell can be used to compensate the faulty cell.

In another optional embodiment, when it is determined that the compensation cell does not satisfy any of the compensation conditions, a cause of compensation failure may be provided to the base station where the faulty cell is located, and a response message may be sent to the base station where the faulty cell is located, where the response message carries the cause of compensation failure.

In this optional embodiment, if it is determined that the Compensation cell does not satisfy the Compensation condition, the base station where the Compensation cell is located may send an eNB CONFIGURATION FAILURE message to the base station where the faulty cell is located, and may also return a FAILURE cause value of Compensation FAILURE to the base station where the faulty cell is located, where the Compensation for the faulty cell is ended in FAILURE.

Wherein the reason for the failure of compensation comprises at least one of the following reasons: the compensation cell is already in a compensation state; the radio frequency antenna of the compensation cell is an electrically non-tunable intelligent antenna; the coverage adjustment of the compensating cell fails.

In another optional embodiment, after the coverage of the compensation cell is increased, if the compensation stopping instruction is received, the compensation of the faulty cell by using the compensation cell is stopped according to the compensation stopping instruction.

In this optional embodiment, if the faulty cell enters the compensation stage or the compensation cell completes the compensation of the faulty cell, the compensation cell may monitor the eNB CONFIGURATION UPDATE message, for example, monitor the eNB CONFIGURATION UPDATE message through the BBU where the compensation stage is located. And if the received eNB CONFIGURATION UPDATE message carries a Compensation stopping Indication, stopping using the Compensation cell to compensate the fault cell. For example, the compensation cell will perform a compensation recovery operation, the BBU where the compensation cell is located will send a command to recover the electrical tilt down angle to the RRU of the compensation cell, and recover the tilt down angle to the size before compensation, at this time, the coverage of the compensation cell is reset to the coverage before the compensation of the faulty cell. And after the success of the downtilt angle recovery, the RRU replies a successful message of the electrical downtilt angle recovery to the BBU.

Of course, there may be other ways for the compensating cell to stop compensating the faulty cell, for example, a preset compensation duration, and after the preset compensation duration is reached, the compensating cell automatically stops compensating the faulty cell.

Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.

In this embodiment, a compensation apparatus for self-healing of a cell is further provided, where the apparatus is used to implement the embodiment and the preferred embodiment shown in fig. 1, and details of the description already made are omitted. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.

Fig. 3 is a first block diagram of a compensation apparatus for self-healing a cell according to an embodiment of the present invention, as shown in fig. 3, the apparatus includes: a first determination module 32 and a first transmission module 34, wherein: a first determining module, configured to determine a compensating cell of a faulty cell; the first sending module is used for sending a message to a base station where the compensation cell is located, wherein the message is used for indicating that the coverage area of the compensation cell is increased so as to realize compensation of the fault cell.

Fig. 4 is a first alternative block diagram of the compensation apparatus for self-healing of a cell according to the embodiment of the present invention, as shown in fig. 4, the apparatus further includes a second determining module 42, coupled to the first determining module 32, for determining a faulty cell, where the faulty cell includes at least one of: sleeping cells, low performance cells.

Fig. 5 is a block diagram of an alternative structure of a compensation apparatus for self-healing of a cell according to an embodiment of the present invention, and as shown in fig. 5, the second determining module includes: the judging unit 52 is configured to judge whether a self-healing alarm exists in the cell and whether a performance index of the cell is lower than a first preset threshold; and a first determining unit 54, coupled to the judging unit 52, configured to determine that the cell is a faulty cell if it is judged that the self-healing alarm exists in the cell and the performance index of the cell is lower than a first preset threshold.

Fig. 6 is a block diagram of an alternative structure of a compensation apparatus for self-healing of a cell according to an embodiment of the present invention, and as shown in fig. 6, the first determining module 32 includes: an obtaining unit 62, configured to obtain a performance index of a neighboring cell of the faulty cell within a preset historical time period; a second determining unit 64, coupled to the obtaining unit 62, is configured to determine the compensating cell according to the performance indicator.

Optionally, the first statistics subunit is coupled to the obtaining unit 62, and configured to count the number of handovers between the neighboring cell and the faulty cell and the handover success rate according to the performance index; wherein, the switching times include: switching times from the adjacent cell to the failure cell and/or switching times from the failure cell to the adjacent cell; the handover success rate includes: a handover success rate from the neighbor cell to the failed cell and/or a handover success rate from the failed cell to the neighbor cell; and the first determining subunit is coupled to the first counting subunit and is used for determining the adjacent cell with the switching times and the switching success rate larger than a second preset threshold value in the adjacent cell as a compensation cell.

Optionally, the second statistics subunit is coupled to the obtaining unit 62, and configured to count, according to the performance index, the number of times of switching between the neighboring cell and the faulty cell and the success rate of switching; wherein, the switching times include: switching times from the adjacent cell to the failure cell and/or switching times from the failure cell to the adjacent cell; the handover success rate includes: a handover success rate from the neighbor cell to the failed cell and/or a handover success rate from the failed cell to the neighbor cell; the calculation subunit is coupled to the second statistics subunit and is used for performing weighted calculation on at least the switching times and the switching success rate of the adjacent cell to obtain a weight value of the adjacent cell; and the second determining subunit is coupled to the calculating subunit and is used for determining the neighboring cell with the largest weight value among the neighboring cells as the compensation cell.

Fig. 7 is a block diagram of an alternative structure of a compensation apparatus for self-healing of a cell according to an embodiment of the present invention, as shown in fig. 7, the apparatus includes: and a first receiving module 72, coupled to the first sending module 34, configured to receive a response message sent by the base station where the compensation cell is located, where the response message carries a compensation failure reason or a compensation success response.

In this embodiment, a compensation apparatus for self-healing of a cell is further provided, where the apparatus is used to implement the embodiment and the preferred embodiment shown in fig. 2, and details of the description already made are omitted. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.

Fig. 8 is a block diagram of a second configuration of a compensation apparatus for self-healing a cell according to an embodiment of the present invention, where as shown in fig. 8, the apparatus includes: a second receiving module 82 and a using module 84, wherein: a second receiving module 82, configured to receive a message sent by a base station where a faulty cell is located, where the message carries information of a compensation cell used for compensating the faulty cell; a using module 84 is coupled to the second receiving module 82 for increasing the coverage of the compensating cell to compensate for the faulty cell.

Optionally, the usage module 84 includes: the base band unit BBU is used for sending an instruction to a radio remote unit RRU of the compensation cell, wherein the instruction is used for instructing the RRU to adjust the downward inclination angle of an antenna of the compensation cell; and the adjusting unit is used for adjusting the downward inclination angle of the antenna to be small through the RRU according to the instruction.

Fig. 9 is a block diagram of an alternative structure of a compensation apparatus for self-healing of a cell according to an embodiment of the present invention, and as shown in fig. 9, the apparatus further includes: a start module 92 coupled between the second receiving module 82 and the using module 84 for starting the waiting compensation timer; and the using module is used for using the compensation cell to compensate the fault cell under the condition of waiting for the overtime of the compensation timer.

Fig. 10 is a block diagram six of an alternative structure of a compensation apparatus for self-healing of a cell according to an embodiment of the present invention, as shown in fig. 10, the apparatus further includes: a first determining module 102, coupled to the starting module 92, configured to determine whether a compensation cancellation instruction sent by a base station where the faulty cell is located is received before the compensation timer expires; a cancellation module 104, coupled to the first determining module 102, configured to, in a case that the first determining module 102 receives a cancellation compensation instruction sent by a base station where the faulty cell is located before the compensation timer times out, cancel, by using the cancellation module, the step of compensating for the faulty cell by using the compensation cell.

Fig. 11 is a block diagram of an alternative structure of a compensation apparatus for self-healing of a cell according to an embodiment of the present invention, and as shown in fig. 11, the apparatus further includes: a second determining module 112, coupled between the second receiving module 82 and the using module 84, for determining whether the compensating cell satisfies the compensating condition; the using module 84 is configured to use the compensating cell to compensate the faulty cell when the second determining module determines that the compensating cell meets the compensation condition.

Fig. 12 is a block diagram eight illustrating an alternative structure of a compensation apparatus for self-healing a cell according to an embodiment of the present invention, and as shown in fig. 12, the apparatus further includes: a second sending module 122, coupled to the second determining module 112, configured to send a response message to the base station where the faulty cell is located when the second determining module determines that the compensation cell does not meet the compensation condition, where the response message carries a compensation failure reason.

Fig. 13 is a block diagram of an alternative structure of a compensation apparatus for self-healing of a cell according to an embodiment of the present invention, and as shown in fig. 13, the apparatus further includes: a third receiving module 132, coupled to the using module 84, for receiving the stop compensation indication; a stopping module 134, coupled to the third receiving module 132, for stopping the using module from performing the step of compensating the faulty cell by using the compensating cell according to the stop compensation indication.

Optionally, the usage module 84 includes: the base band unit BBU is used for sending an instruction to a radio remote unit RRU of the compensation cell, wherein the instruction is used for instructing the RRU to adjust the downward inclination angle of an antenna of the compensation cell; and the adjusting subunit is used for adjusting the downward inclination angle of the antenna according to the instruction through the RRU.

The embodiment of the present invention also provides software for executing the technical solutions described in the above embodiments and preferred embodiments.

The embodiment of the invention also provides a storage medium. Alternatively, in the present embodiment, the storage medium may be configured to store program codes for performing the following steps:

step S102, determining a compensation cell of a fault cell;

step S104, sending a message to the base station where the compensation cell is located, wherein the message is used for indicating the compensation of the fault cell by using the compensation.

Optionally, the storage medium is further arranged to store program code for performing the steps of:

step S202, receiving a message sent by a base station where a fault cell is located, wherein the message carries information of a compensation cell for compensating the fault cell;

and step S204, compensating the fault cell by using the compensation cell.

Optionally, in this embodiment, the storage medium may include, but is not limited to: various media capable of storing program codes, such as a usb disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.

In order to make the description of the embodiments of the present invention clearer, the following description and illustrations are made with reference to alternative embodiments.

Alternative embodiment 1

Fig. 14 is a flowchart of a method for self-healing a faulty cell according to an alternative embodiment of the present invention, and as shown in fig. 14, the method includes the following steps:

step S1402 starts the self-healing function. The self-healing function can be started through the base station where the cell is located.

Step S1404, self-healing alarms and KPIs are monitored. And monitoring self-healing alarms and key performance indicators KPIs of a plurality of cells in real time through a base station where the cells are located, wherein the KPIs can comprise a plurality of indicators, such as the switching times and the switching success rate of each cell.

In step S1406, the cell failure type is determined. The failure type of the cell can be determined by the self-healing alarm and the key performance indicator KPI of each cell, wherein when it is determined that the cell does not satisfy the condition of the failed cell, the step S1404 is executed again. There may be many types of cell failures, and in this alternative embodiment, the failure types of the cell may include a sleeping cell and a low performance cell.

In step S1408, a faulty cell is determined. And if the cell is judged to meet at least one of the sleeping cell and the low-performance cell, determining that the cell has a fault, and taking the cell as a fault cell.

Step S1410, determine whether the faulty cell is in the compensation stage. The failed cell is in the compensation stage, and the compensation cell is compensating the failed cell. Judging whether the acquired fault cell is in a compensation stage, and if the fault cell is judged to be in the compensation stage, not executing any operation; if the compensated cell is not in the compensation stage, step S1412 is executed.

In step S1412, the faulty cell is recovered. If the compensation cell is not in the compensation stage, the fault cell can provide effective service again through self-healing recovery action.

In step S1414, it is determined whether the recovery was successful. After the self-healing recovery of the faulty cell, whether the recovery is successful or not can be judged, and if the recovery of the faulty cell is successful, the step S1404 is executed again; if the failed cell is not successfully recovered, step S1416 is executed.

Step S1416, faulty cell compensation. When it is determined through the above steps that the faulty cell cannot provide effective service again through the self-healing recovery action, the faulty cell will enter a self-healing compensation stage, for example, the faulty cell can be compensated through the compensation cell.

Step S1418, it is determined whether the failed cell is recovered. After the compensation cell compensates the faulty cell, if it is determined that the faulty cell is recovered, executing step S1420; and if the fault cell is not recovered, returning to the step S1404, and continuously monitoring the self-healing alarm and the KPI through the base station where the fault cell is located.

Specifically, in this optional embodiment, the condition that the failed cell compensation is successful includes: the compensation cell is not in a compensation state; the radio frequency antenna of the compensation cell is an electric tuning intelligent antenna; the antenna adjustment is successful.

In step S1420, compensation is resumed. If the failed cell is recovered successfully, an eNB CONFIGURATION UPDATE message may be sent to the base station where the compensation cell is located. If the received message contains a cancellation Compensation Indication (reactive Compensation Indication), the Compensation cell executes a Compensation recovery operation, the BBU where the Compensation cell is located sends an electric tilt angle recovery command to the RRU of the Compensation cell, the angle of the tilt angle is recovered to the size before Compensation, and after the angle of the tilt angle is recovered successfully, the RRU replies an electric tilt angle recovery success message to the BBU.

Through the cell self-healing compensation method provided by the optional embodiment, the problem that the coverage area of the faulty cell cannot generate a blind area really due to fault or fault recovery in the prior art is solved, the problems and the defects existing when the current cell fails are solved, the user experience is improved, and the KPI (key performance indicator) of a commercial network is improved.

Alternative embodiment two

Fig. 15 is a diagram illustrating the effect of compensating a faulty cell by a compensating cell according to an alternative embodiment of the present invention, where, as shown in fig. 15, an area 1 shown by a solid line in fig. 15 is the faulty cell, and

areas

2 and 3 shown by solid lines are both compensating cells. When the cell 1 breaks down, the area covered by the cell 1 will have a blind area, and at this time, the compensation cell 2 and the compensation cell 3 respectively increase the coverage area of the compensation cell 2 and the compensation cell 3 by adjusting the downward inclination angle of the electrically-regulated smart antenna, so as to reach the area covered by the compensation fault cell. As can be seen from fig. 15, after the downtilt angle of the electrically tunable smart antenna is adjusted, the coverage areas covered by the compensation cell 2 and the compensation cell 3 are increased, and the coverage area after the increase is shown by a dotted line in fig. 15.

Alternative embodiment three

Fig. 16 is a schematic diagram of success of self-healing compensation of a faulty cell according to an alternative embodiment of the present invention, as shown in fig. 16, including the following steps:

step S1602, the cell self-healing function is started, and in this optional embodiment, the cell self-healing function may be started by the base station 1.

And step S1604, monitoring the self-healing alarm and KPI of the cell. The self-healing alarm and key performance indicator KPI of a plurality of cells can be monitored simultaneously by the base station 1. In this alternative embodiment, the KPIs may comprise at least one of: switching times and switching success rate of a plurality of adjacent cells of the fault cell in a preset time period.

Step S1606, the condition of the faulty cell is satisfied. The base station 1 may determine whether the cell meets the condition of the faulty cell according to the monitored self-healing alarm and KPI, where the fault types of the cell may be many, and in this optional embodiment, a sleeping cell or a low-performance cell may be obtained. The self-healing alarm and key performance indicator KPI of a plurality of cells can be monitored in real time, cell fault judgment is carried out periodically according to the collected self-healing alarm and KPI, and whether the cell meets at least one of two scenes of a sleeping cell and a low-performance cell is determined.

Step S1608 is performed to recover the faulty cell. When the cell is judged to be a fault cell, the fault cell can provide effective service again through self-healing recovery action. If the faulty cell cannot provide effective service again through the self-healing recovery action (i.e., recovery failure), the self-healing function of the faulty cell enters a self-healing compensation phase, and the following steps are performed.

Step S1610, self-healing compensation conditions of the fault cell are met.

Step S1612, acquiring KPIs of all neighboring cells of the failed cell within a preset time. In this optional embodiment, KPIs within near three days of all neighboring cells of the faulty cell may be obtained by a base station where the faulty cell is located (i.e., the base station 1 shown in fig. 16), and one or more cells are determined as compensation cells in multiple neighboring cells of the faulty cell through the KPIs within near three days. The specific determination step is described above, and will not be described here.

In step S1614, a cell between two stations and having an X2 relationship is selected as a compensation cell. One or more cells are determined as the compensating cells among the plurality of neighboring cells of the faulty cell through the above step S1612. In this optional embodiment, 2 compensating cells are selected as an example for description, where the base station where the selected 2 compensating cells are located is a different base station, and an X2 link can be implemented between the two base stations. Specifically, only one base station (i.e., base station 2 in fig. 16) where the compensation cell is located is shown in fig. 16.

In step S1616, the base station 1 sends a configuration update message to the base station 2. There are many kinds of messages sent by the base station where the faulty cell is located to the base station where the compensating cell is located, and the selected compensating cell may be notified by sending a CONFIGURATION UPDATE message (eNB CONFIGURATION UPDATE) to the base station where the compensating cell is located (base station 2 in fig. 16) through the base station where the faulty cell is located (i.e., base station 1 in fig. 16) in the existing 3GPP protocol. The Served Cells To Delete message body of the eNB CONFIGURATION UPDATE message contains Compensation cell Information (Compensation cell Information).

Step S1618, find a compensation cell. After receiving the eNB CONFIGURATION UPDATE message, the base station 2 may search for the corresponding Compensation cell according to the cell global identifier ECGI in the Compensation cell Information message.

It should be noted that, if the base station 2 does not find the cell matching the CONFIGURATION update message, the base station 2 will send a compensation FAILURE message (eNB CONFIGURATION FAILURE) to the base station 1 (i.e., the base station where the faulty cell is located). The specific transmission flow is not shown in fig. 16, and is specifically described in the following alternative embodiment.

Step S1620, determining whether the compensation cell satisfies the compensation condition. When the Compensation cell matches the cell global identifier ECGI carried in the Compensation Cells Information message to provide Compensation for the faulty cell, it can also be determined whether the Compensation cell satisfies the Compensation condition, wherein, if it is determined that the Compensation cell satisfies the Compensation condition, step S1622 is executed. The compensation condition includes at least one of: the compensation cell is not in a compensation state and the radio frequency antenna of the compensation cell is an electrically-adjusted intelligent antenna.

It should be noted that, when the base station 2 determines that the compensation cell does not satisfy the compensation condition, the base station 2 sends eNB CONFIGURATION FAILURE to the base station 1 (i.e., the base station where the faulty cell is located). The specific transmission flow is not shown in fig. 16, and is specifically described in the following alternative embodiment.

Step S1622, the base station where the compensating cell is located (i.e., the base station 2 in fig. 16) replies to the base station where the faulty cell is located (i.e., the base station 1 in fig. 16) with a CONFIGURATION update confirm message (eNB CONFIGURATION update acknowledge message), that is, confirms that the CONFIGURATION update message is received.

In step S1624, a waiting compensation timer is started. When the compensation cell compensates the fault cell, a waiting compensation timer can be started through the BBU where the compensation cell is located, and the timer has the function of ensuring that the fault cell can not provide normal service through self-healing recovery. If the waiting compensation timer is overtime, step S1626 is executed, and the compensation cell sends a relevant adjustment instruction, for example, the relevant adjustment instruction is sent to the RRU corresponding to the compensation cell through the BBU where the compensation cell is located. And then the intelligent antenna is electrically adjusted to be small according to the adjusting instruction, the coverage area is extended towards the direction of the fault cell, and the coverage area of the compensation cell is enlarged, so that the self-healing compensation operation of the fault cell is successfully completed, and the effect is shown in figure 15.

Step S1626, execute the command of electrically adjusting the tilt angle. After the RRU where the fault cell is located receives the adjusting instruction, current RRU antenna parameters are stored, and then the RRU adjusts the downward inclination angle according to requirements, so that the coverage area of the compensation cell is enlarged, and the coverage area of the fault cell is compensated. It should be noted that the adjustment of the downward inclination angle may be set to a default value after simulation according to the operation data.

Step S1628, the self-healing compensation is successful.

Alternative embodiment four

Fig. 17 is a schematic diagram of cancellation of self-healing compensation of a faulty cell according to an alternative embodiment of the present invention, as shown in fig. 17, including the following steps:

step S1702, start a cell self-healing function, which may be started by the base station 1 in this optional embodiment.

Step S1704, the self-healing alarm and KPI of the community are monitored. The self-healing alarm and key performance indicator KPI of a plurality of cells can be monitored simultaneously by the base station 1. In this alternative embodiment, the KPIs may comprise at least one of: switching times and switching success rate of a plurality of adjacent cells of the fault cell in a preset time period.

Step S1706, the condition of the faulty cell is satisfied. The base station 1 determines whether the cell meets the condition of the faulty cell according to the monitored self-healing alarm and KPI, where the fault types of the cell may be many, and in this optional embodiment, a sleeping cell or a low-performance cell may be obtained. The self-healing alarm and key performance indicator KPI of a plurality of cells can be monitored in real time, cell fault judgment is carried out periodically according to the collected self-healing alarm and KPI, and whether the cell meets at least one of two scenes of a sleeping cell and a low-performance cell is determined.

In step S1708, recovery of the faulty cell is performed. When the cell is judged to be a fault cell, the fault cell can provide effective service again through self-healing recovery action. If the faulty cell cannot provide effective service again through the self-healing recovery action (i.e., recovery failure), the self-healing function of the faulty cell enters a self-healing compensation phase, and the following steps are performed.

And step S1710, satisfying the self-healing compensation condition of the fault cell.

Step S1712, KPIs of all adjacent cells of the fault cell in preset time are obtained. KPIs of all neighbor cell pairs of the faulty cell within three days can be obtained through a base station (i.e., base station 1 shown in fig. 17) where the faulty cell is located, and one or more cells are determined as compensation cells in the multiple neighbor cells of the faulty cell through the KPIs within three days. The specific determination step is described above, and will not be described here.

Step S1714, a cell between two stations and having an X2 relationship is selected as a compensation cell. In the foregoing step S1712, one or more cells are determined as compensation cells in the multiple neighboring cells of the faulty cell, in this optional embodiment, taking selecting 2 compensation cells as an example for description, the base station where the selected 2 compensation cells are located is a different base station, and X2 linking can be implemented between two base stations, specifically, only the base station where one compensation cell is located (i.e., the base station 2 in fig. 17) is shown in fig. 17.

Step S1716, the base station 1 sends a configuration update message to the base station 2. There are many kinds of messages sent by the base station where the faulty cell is located to the base station where the compensating cell is located, and the selected compensating cell may be notified by sending a CONFIGURATION UPDATE message (eNB CONFIGURATION UPDATE) to the base station where the compensating cell is located (base station 2 in fig. 17) by using the existing 3GPP protocol, where the faulty cell is located (i.e., base station 1 in fig. 17). The Served Cells To Delete message body of the eNB CONFIGURATION UPDATE message contains Compensation cell Information (Compensation cell Information).

Step S1718, find the compensation cell. After receiving the eNB CONFIGURATION UPDATE message, the base station 2 may search for the corresponding Compensation cell according to the cell global identifier ECGI in the Compensation cell Information message.

It should be noted that, if the base station 2 does not find the cell matching the CONFIGURATION update message, the base station 2 will send a compensation FAILURE message (eNB CONFIGURATION FAILURE) to the base station 1 (i.e., the base station where the failed cell is located). The specific transmission flow is not shown in fig. 17, and is specifically described in the following alternative embodiment.

Step S1720, determining whether the compensating cell satisfies a compensating condition. When the Compensation cell matches the cell global identifier ECGI carried in the Compensation Cells Information message to provide Compensation for the failed cell, it is determined whether the Compensation cell satisfies the Compensation condition, wherein, if it is determined that the Compensation cell satisfies the Compensation condition, step S1722 is executed. The compensation condition includes at least one of: whether the compensation cell is in an uncompensated state or not and the radio frequency antenna of the compensation cell is an electrically-adjusted intelligent antenna.

It should be noted that, when the base station 2 determines that the compensation cell does not satisfy the compensation condition, the base station 2 sends eNB CONFIGURATION FAILURE to the base station 1 (i.e., the base station where the faulty cell is located). The specific transmission flow is not shown in fig. 17, and is specifically described in the following alternative embodiment.

Step S1722, the base station 2 sends a configuration update confirmation message to the base station 1. The base station (i.e., base station 2 in fig. 17) where the compensating cell is located may also reply to the base station (i.e., base station 1 in fig. 17) where the failed cell is located, that is, confirm that the compensating cell compensates the failed cell.

In step S1724, a waiting compensation timer is started. The BBU where the fault cell is located starts a waiting compensation timer, and the timer is used for ensuring that the fault cell can not provide normal service through self-healing recovery.

In step S1726, the configuration update message is received again when the wait compensation timer has not timed out. If the timer is over time, all base stations of the Compensation cell receive the eNB CONFIGURATION UPDATE message again, and the message carries a cancellation Compensation Indication (reactive Compensation Indication). At this time, the Compensation cell determines whether the configuration message is to inform itself to cancel the current Compensation waiting according to the combination of the inactive Compensation Indication and the adjacent cell ECGI in the configuration update message received just before.

Step S1728, the base station where the compensating cell is located (i.e., the base station 2 in fig. 17) replies to the base station where the faulty cell is located (i.e., the base station 1 in fig. 17) with a CONFIGURATION update confirmation message (eNB CONFIGURATION update acknowledge message), that is, confirms that the CONFIGURATION update message is received.

Step S1730, the compensating cell matching is successful. If the compensation cell is successfully matched with the message received in step S1726, step S1732 is executed, the compensation cell stops the corresponding compensation waiting timer, and the base station where the compensation cell is located replies to the base station eNB CONFIGURATION acknowledgement in which the faulty cell is located, so as to cancel the self-healing compensation.

In step S1732, the wait compensation timer is stopped.

Alternative embodiment five

Fig. 18 is a schematic diagram of failure of self-healing compensation of a failed cell according to an alternative embodiment of the present invention, as shown in fig. 18, including the following steps:

step S1802, a cell self-healing function is started. Wherein the cell self-healing function is opened by the base station 1.

Step S1804, self-healing alarm and KPI of the community are monitored. Wherein, the self-healing alarm and key performance indicator KPI of a plurality of districts are monitored simultaneously through the base station 1.

Step S1806, the condition of the faulty cell is satisfied. The base station 1 determines whether the cell meets the condition of the faulty cell according to the monitored self-healing alarm and the KPI, wherein when the cell is determined to be a sleeping cell or a low-performance cell according to the self-healing alarm and the KPI, the cell is determined to be the faulty cell.

Step S1808, the failed cell is recovered. The faulty cell can provide the effective service again through the self-healing recovery action, and when the faulty cell cannot provide the effective service again through the self-healing recovery action (i.e. recovery fails), the self-healing function enters a self-healing compensation phase, and the following steps are performed.

Step S1810, self-healing compensation conditions of the fault cell are met.

Step S1812, acquiring KPIs of all neighboring cells of the faulty cell within a preset time, where KPIs of all neighboring cells of the faulty cell within three days may be acquired through a base station (i.e., the base station 1 shown in fig. 18) where the faulty cell is located, and determining one or more cells as compensation cells in the multiple neighboring cells of the faulty cell through the KPIs within three days.

Step S1814, a cell between two stations and having an X2 relationship is selected as a compensation cell. Through the above step S1812, one or more cells are determined as compensation cells in multiple neighboring cells of the faulty cell, wherein in the alternative embodiment of the present invention, an example of selecting 2 compensation cells is described, where the base stations where the selected 2 compensation cells are located are different base stations, and an X2 link can be implemented between two base stations, specifically, only the base station where one compensation cell is located (i.e., the base station 2 in fig. 18) is shown in fig. 18.

Step S1816, the base station 1 sends a configuration update message to the base station 2. The selected compensation cell may be notified by sending a CONFIGURATION UPDATE message (eNB CONFIGURATION UPDATE) from the base station (i.e., base station 1 in fig. 18) of the failed cell in the existing 3GPP protocol to the base station (i.e., base station 2 in fig. 18) of the compensation cell. The Served Cells To Delete message body of the eNB CONFIGURATION UPDATE message contains Compensation cell Information (Compensation cell Information).

Step S1818, find a compensation cell. After receiving the eNB CONFIGURATION UPDATE message, the base station 2 may search for the corresponding Compensation cell according to the cell global identifier ECGI in the Compensation cell Information message. Wherein, after finding the compensating cell, step S1820 is executed.

It should be noted that, as shown in fig. 18, when the base station 2 does not find a cell matching the CONFIGURATION update message, step S1822 is executed, and the base station 2 sends a compensation FAILURE message (eNB CONFIGURATION FAILURE) to the base station 1 (i.e., the base station where the failed cell is located).

Step S1820, judging whether the compensation cell meets the compensation condition. At this time, the base station where the compensation cell is located will determine whether the compensation cell satisfies the compensation condition, where the compensation condition includes: the compensation cell is not in a compensation state, the radio frequency antenna of the compensation cell is an electrically-adjusted intelligent antenna, and the adjustment of the antenna fails. When it is determined that the compensation cell does not satisfy the compensation condition, step S1822 is performed.

In step S1822, the base station of the compensating cell (i.e., base station 2 in fig. 18) will revert to eNB CONFIGURATION FAILURE in the base station of the failed cell (i.e., base station 1 in fig. 18), and the FAILURE cause value is Compensation FAILURE.

And judging whether the compensation cell is currently used as a compensation cell of other fault cells, if so, judging whether an antenna used by the compensation cell is an electrically-adjusted intelligent antenna by a base station where the compensation cell is located. If the mobile terminal does not determine the smart antenna is electrically adjusted, the base station of the Compensation cell will reply to the base station (eNB CONFIGURATION FAILURE) of the failed cell, and the FAILURE cause value is Compensation FAILURE.

If the current compensation cell is not used as a compensation cell of other fault cells and the compensation cell is an electric adjusting intelligent antenna, the compensation cell can adjust the angle of the downward inclination angle according to the instruction for adjusting the downward inclination angle of the electric adjusting intelligent antenna. If the adjustment of the downward inclination angle of the electrically-adjusted smart antenna fails (namely, the adjustment of the coverage area of the Compensation cell fails), the base station of the Compensation cell will revert to the base station eNB CONFIGURATION FAILURE where the FAILURE cell is located, and the FAILURE cause value is Compensation FAILURE.

In step S1824, the base station where the compensating cell is located (i.e., the base station 2 in fig. 18) replies to the base station where the faulty cell is located (i.e., the base station 1 in fig. 18) with a CONFIGURATION update confirm message (eNB CONFIGURATION update acknowledge message), that is, confirms that the CONFIGURATION update message in step S1816 is received.

Alternative embodiment six

Fig. 19 is a schematic diagram of recovery from self-healing compensation of a faulty cell according to an alternative embodiment of the present invention, as shown in fig. 19, including the following steps:

step S1902, the cell self-healing function is turned on, and the base station 1 turns on the cell self-healing function. Specifically, in this alternative embodiment, it is assumed that the faulty cell has entered the compensation phase at this time.

In step S1904, recovery of the failed cell is performed. The fault cell can be recovered in a manual or self-rescue mode, and can be normally provided with services.

Step S1906, a cell self-healing alarm and KPI are monitored.

In step S1908, the condition of the faulty cell is not satisfied. And monitoring the self-healing alarm and the KPI of the cell in real time, and if the self-healing alarm disappears and the KPI meets the self-healing recovery success condition, determining that the cell does not meet the condition of the fault cell (a sleeping cell or a low-performance cell).

Step S1910, the failed cell is successfully recovered. When the cell is determined not to satisfy the condition of the failed cell, the cell can be determined to be successfully recovered.

In step S1912, the base station 1 sends a configuration update message to the base station 2. After confirming that the failed cell is successfully recovered, the base station (i.e., base station 1 in fig. 19) where the original failed cell is located will send an eNB CONFIGURATION UPDATE message to the base station (i.e., base station 2 in fig. 19) where the cell that provided the Compensation previously is located, and the message carries a cancellation Compensation Indication (reactive Compensation Indication) for notifying the compensating cell to stop compensating the failed cell and recovering the parameters and the antenna downtilt angle to the state before Compensation.

Step S1914, the base station where the compensating cell is located (i.e., the base station 2 in fig. 19) replies to the base station where the faulty cell is located (i.e., the base station 1 in fig. 19) with a CONFIGURATION update confirm message eNB CONFIGURATION update acknowledge, that is, confirms that the CONFIGURATION update message in step S1912 is received.

Step S1916, cell matching is compensated. And the Compensation cell confirms whether the configuration message informs the Compensation cell to recover the Compensation according to the combination of the inactive Compensation Indication and the adjacent ECGI information in the configuration update message received just now. If the matching is successful, step S1918 is executed, the BBU where the compensation cell is located notifies the RRU where the compensation cell is located to recover the antenna downtilt to the state before compensation, and the self-healing compensation is recovered successfully this time.

Step S1918, the electric tilt angle adjustment is resumed.

It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.

The above description is only an alternative embodiment of the present invention and is not intended to limit the present invention, and various modifications and variations of the present invention may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A compensation method for self-healing of a cell is characterized by comprising the following steps:

determining a compensating cell for the failed cell, comprising: acquiring a performance index of a neighbor cell of the fault cell in a preset historical time period, and determining the compensation cell according to the performance index;

sending a message to a base station where the compensation cell is located, wherein the message is used for indicating that the compensation cell is used for compensating the fault cell;

wherein compensating the faulty cell using the compensating cell comprises:

increasing the coverage of the compensating cell;

wherein determining the compensating cell according to the performance indicator comprises:

according to the performance index, counting the switching times and the switching success rate between the adjacent cell and the fault cell; wherein the number of handovers includes: the switching times from the adjacent cell to the failure cell and/or the switching times from the failure cell to the adjacent cell; the handover success rate includes: a handover success rate for handover from the neighbor cell to the failed cell and/or a handover success rate for handover from the failed cell to the neighbor cell;

and determining the adjacent cell with the switching times and the switching success rate larger than a second preset threshold value in the adjacent cell as the compensation cell.

2. The method of claim 1, wherein prior to determining the compensating cell for the faulty cell, the method further comprises:

determining the faulty cell, wherein the faulty cell comprises at least one of: sleeping cells, low performance cells.

3. The method of claim 2, wherein determining the faulty cell comprises:

judging whether a self-healing alarm exists in a cell and whether the performance index of the cell is lower than a first preset threshold value;

and determining the cell as the fault cell under the conditions that self-healing alarm exists in the cell and the performance index of the cell is lower than the first preset threshold value.

4. The method of claim 1, wherein determining the compensating cell based on the performance indicator comprises:

at least carrying out weighted calculation on the switching times and the switching success rate of the adjacent cell to obtain a weighted value of the adjacent cell;

and determining the neighbor cell with the largest weight value in the neighbor cells as the compensation cell.

5. The method according to claim 4, wherein the performing weighted calculation on at least the handover times and the handover success rate of the neighboring cell, and obtaining the weight value of the neighboring cell comprises:

and performing weighted calculation on the switching times, the switching success rate and the current load of the adjacent cell to obtain the weight value of the adjacent cell.

6. The method of claim 1, further comprising:

and receiving a response message sent by the base station where the compensation cell is located, wherein the response message carries a compensation failure reason or a compensation success response.

7. The method of claim 6, wherein the cause of failure to compensate comprises at least one of:

the compensating cell is already in a compensating state;

the radio frequency antenna of the compensation cell is an electrically non-tunable intelligent antenna;

the coverage adjustment of the compensating cell fails.

8. A compensation method for self-healing of a cell is characterized by comprising the following steps:

receiving a message sent by a base station where a faulty cell is located, wherein the message carries information of a compensation cell for compensating the faulty cell, and the compensation cell acquires a performance index of a neighboring cell of the faulty cell within a preset historical time period and counts switching times and switching success rate between the neighboring cell and the faulty cell; wherein the number of handovers includes: the switching times from the adjacent cell to the failure cell and/or the switching times from the failure cell to the adjacent cell; the handover success rate includes: a handover success rate for handover from the neighbor cell to the failed cell and/or a handover success rate for handover from the failed cell to the neighbor cell; determining according to the switching times and the switching success rate in the adjacent cell, wherein the adjacent cell in which the switching times and the switching success rate are greater than a second preset threshold is the compensation cell;

compensating the faulty cell using the compensating cell, comprising:

increasing the coverage of the compensating cell.

9. The method of claim 8, wherein prior to compensating the failed cell using the compensating cell, the method further comprises:

starting a waiting compensation timer; wherein the compensating for the faulty cell using the compensating cell is performed when the waiting compensation timer is expired.

10. The method of claim 9, wherein after starting the latency backoff timer, the method further comprises:

judging whether a compensation canceling instruction sent by a base station where the fault cell is located is received before the compensation timer is overtime;

and under the condition that a compensation canceling instruction sent by the base station where the fault cell is located is received before the compensation timer is overtime, canceling the step of compensating the fault cell by using the compensation cell.

11. The method of claim 8, wherein prior to compensating the failed cell using the compensating cell, the method further comprises:

judging whether the compensation cell meets a compensation condition; and under the condition that the compensation cell meets the compensation condition, executing the step of compensating the fault cell by using the compensation cell.

12. The method of claim 11, wherein the compensation condition comprises at least one of:

the compensation cell is not in a compensation state;

and the radio frequency antenna of the compensation cell is an electric tuning intelligent antenna.

13. The method of claim 11, wherein in case that it is determined that the compensating cell does not satisfy the compensation condition, the method further comprises:

and sending a response message to the base station where the fault cell is located, wherein the response message carries a compensation failure reason.

14. The method of claim 13, wherein the cause of failure to compensate comprises at least one of:

the compensating cell is already in a compensating state;

the coverage adjustment of the compensating cell fails.

15. The method of claim 8, wherein after compensating for the failed cell using the compensating cell, the method further comprises:

receiving a stop compensation indication;

and stopping using the compensation cell to compensate the fault cell according to the compensation stopping indication.

16. The method of claim 8, wherein increasing the coverage of the compensating cell comprises:

sending an instruction to a Radio Remote Unit (RRU) of the compensation cell through a Base Band Unit (BBU) of the compensation cell, wherein the instruction is used for instructing the RRU to adjust down an inclination angle of an antenna of the compensation cell;

and the downward inclination angle of the antenna is adjusted to be small through the RRU according to the instruction.

17. A compensation device for self-healing of a cell, comprising:

a first determining module, configured to determine a compensating cell of a faulty cell;

a first sending module, configured to send a message to a base station where the compensation cell is located, where the message is used to instruct the compensation cell to compensate the faulty cell, and the compensating the faulty cell using the compensation cell includes: increasing the coverage of the compensating cell;

wherein the first determining module comprises:

an obtaining unit, configured to obtain a performance index of a neighboring cell of the faulty cell within a preset historical time period;

a second determining unit, configured to determine the compensation cell according to the performance indicator;

wherein the second determination unit includes:

a first counting subunit, configured to count, according to the performance index, the number of times of switching and a success rate of switching between the neighboring cell and the faulty cell; wherein the number of handovers includes: the switching times from the adjacent cell to the failure cell and/or the switching times from the failure cell to the adjacent cell; the handover success rate includes: a handover success rate for handover from the neighbor cell to the failed cell and/or a handover success rate for handover from the failed cell to the neighbor cell;

a first determining subunit, configured to determine, as the compensation cell, an adjacent cell in the adjacent cell, where the number of times of handover and the handover success rate are greater than a second preset threshold.

18. The apparatus of claim 17, further comprising:

a second determining module configured to determine the faulty cell, wherein the faulty cell includes at least one of: sleeping cells, low performance cells.

19. The apparatus of claim 18, wherein the second determining module comprises:

the judging unit is used for judging whether a self-healing alarm exists in a cell and whether the performance index of the cell is lower than a first preset threshold value;

the first determining unit is configured to determine that the cell is the faulty cell when it is determined that a self-healing alarm exists in the cell and the performance index of the cell is lower than the first preset threshold.

20. The apparatus of claim 17, wherein the second determining unit comprises:

a second counting subunit, configured to count, according to the performance index, the number of times of switching and a success rate of switching between the neighboring cell and the faulty cell; wherein the number of handovers includes: the switching times from the adjacent cell to the failure cell and/or the switching times from the failure cell to the adjacent cell; the handover success rate includes: a handover success rate for handover from the neighbor cell to the failed cell and/or a handover success rate for handover from the failed cell to the neighbor cell;

a calculating subunit, configured to perform weighted calculation on at least the handover times and the handover success rate of the neighboring cell to obtain a weight value of the neighboring cell;

a second determining subunit, configured to determine, as the compensation cell, a neighboring cell with a largest weight value among the neighboring cells.

21. The apparatus of claim 20, wherein the computing subunit is configured to:

22. The apparatus of claim 17, further comprising:

a first receiving module, configured to receive a response message sent by a base station where the compensation cell is located, where the response message carries a compensation failure reason or a compensation success response.

23. A compensation device for self-healing of a cell, comprising:

a second receiving module, configured to receive a message sent by a base station where a faulty cell is located, where the message carries information of a compensation cell used for compensating the faulty cell, where the compensation cell acquires a performance index of a neighboring cell of the faulty cell within a preset historical time period, and counts switching times and a switching success rate between the neighboring cell and the faulty cell; wherein the number of handovers includes: the switching times from the adjacent cell to the failure cell and/or the switching times from the failure cell to the adjacent cell; the handover success rate includes: a handover success rate for handover from the neighbor cell to the failed cell and/or a handover success rate for handover from the failed cell to the neighbor cell; determining according to the switching times and the switching success rate in the adjacent cell, wherein the adjacent cell in which the switching times and the switching success rate are greater than a second preset threshold is the compensation cell;

a using module for compensating the faulty cell using the compensating cell;

wherein the usage module comprises:

an increasing unit, configured to increase a coverage area of the compensating cell.

24. The apparatus of claim 23, further comprising:

the starting module is used for starting the waiting compensation timer; wherein the using module is configured to use the compensating cell to compensate the faulty cell when the waiting compensation timer is expired.

25. The apparatus of claim 24, further comprising:

a first judging module, configured to judge whether a compensation cancellation instruction sent by a base station where the faulty cell is located is received before the compensation timer expires;

and a cancellation module, configured to cancel, when receiving a cancellation compensation instruction sent by a base station where the faulty cell is located before the first determination module determines that the compensation timer is overtime, the step of performing, by the use module, compensation on the faulty cell by using the compensation cell.

26. The apparatus of claim 23, further comprising:

the second judgment module is used for judging whether the compensation cell meets the compensation condition; the using module is configured to use the compensating cell to compensate the faulty cell when the second determining module determines that the compensating cell satisfies the compensation condition.

27. The apparatus of claim 26, further comprising:

and a second sending module, configured to send a response message to the base station where the faulty cell is located when the second determining module determines that the compensation cell does not meet the compensation condition, where the response message carries a compensation failure reason.

28. The apparatus of claim 23, further comprising:

a third receiving module, configured to receive a stop compensation indication;

and the stopping module is used for stopping the using module from executing the step of using the compensation cell to compensate the fault cell according to the compensation stopping indication.

29. The apparatus of claim 23, wherein the increasing unit comprises:

a sending subunit, configured to send, through the baseband processing unit BBU of the compensation cell, an instruction to a radio remote unit RRU of the compensation cell, where the instruction is used to instruct the RRU to adjust a downtilt angle of an antenna of the compensation cell;

and the adjusting subunit is used for reducing the downward inclination angle of the antenna according to the instruction through the RRU.