CN112243240B

CN112243240B - Cell adjusting method and device and wireless intelligent controller

Info

Publication number: CN112243240B
Application number: CN201910640972.XA
Authority: CN
Inventors: 袁雁南
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2019-07-16
Filing date: 2019-07-16
Publication date: 2022-12-27
Anticipated expiration: 2039-07-16
Also published as: CN112243240A

Abstract

The embodiment of the invention provides a cell adjusting method, a cell adjusting device and a wireless intelligent controller. Wherein, the method comprises the following steps: acquiring cell adjustment influence parameters of a plurality of distribution units for cell adjustment; determining each target adjusting unit for cell adjustment by successive iteration according to the cell adjustment influence parameters of the plurality of distribution units; the target adjustment unit is one of the distribution units, and the distribution unit is a minimum adjustment unit for performing the cell adjustment. The method can solve the problems that the cell level service interruption is caused when the cell splitting and merging are carried out in the prior art, and the user experience and the network performance indication are influenced.

Description

Cell adjusting method and device and wireless intelligent controller

Technical Field

The present invention relates to the field of wireless technologies, and in particular, to a cell adjustment method, an apparatus, and a wireless intelligent controller.

Background

In a mobile communication system, under a condition that coverage requirements are the main, a plurality of independent remote radio units are generally required to be planned into one cell in network planning construction, so as to reduce used baseband processing resources, reduce handover and the like. When capacity is needed, cell splitting is carried out on the existing network according to new needs, and the number of cells is increased. And the cell merging is the reverse process of cell splitting, and when no capacity is required, the remote radio frequency units originally belonging to different cells are merged into the same cell, so that the interference and the required resources are reduced. The cell splitting and combining form derived on the basis also comprises the change of the home relationship between the remote radio frequency unit and different cells although the total number of the cells is unchanged.

In the existing scheme, when cells are split or combined, a cell-level service interruption condition exists for a certain time, when the cells are combined, at least one of the two cells to be combined needs to be deactivated first and then is combined into the other cell through configuration, even if a mechanism for actively switching out users first exists before deactivation, all users switched out by enough adjacent cells are not available in a plurality of single-layer covered scenes, and the user experience and the network performance index are inevitably deteriorated; when a cell is split, a cell to be split needs to be deactivated first, and then a plurality of cells are split through necessary configuration, so that the same problem exists when the cells are combined.

The cells are split or combined into a mutation process, large-area cell signal interruption can occur in the mutation process, and cell-level service interruption is caused because no adjacent cells exist or the adjacent cells cannot accept a large number of users in a short time, so that user experience and network performance indexes are influenced, and the situation cannot be accepted by terminal users and operators.

Disclosure of Invention

The technical scheme of the invention aims to provide a cell adjusting method, a cell adjusting device and a wireless intelligent controller, which are used for solving the problems that cell level service interruption is caused and user experience and network performance indication are influenced when cell splitting and cell combining are carried out in the prior art.

The embodiment of the invention provides a cell adjusting method, which comprises the following steps:

acquiring cell adjustment influence parameters of a plurality of distribution units for cell adjustment;

determining each target adjusting unit for cell adjustment by successive iteration according to the cell adjustment influence parameters of the plurality of distribution units; the target adjusting unit is one of the distributing units, and the distributing unit is a minimum adjusting unit for adjusting the cell.

Optionally, the cell adjusting method, wherein the determining, based on the cell adjustment influence parameters of multiple distribution units, each target adjustment unit for performing cell adjustment through successive iteration includes:

determining one of the distribution units as a target adjustment unit for cell adjustment according to the cell adjustment influence parameters of the distribution units;

and carrying out configuration modification on the determined target adjusting unit, when the adjusted cell after configuration modification does not accord with the adjustment target, determining one of the distribution units as a target adjusting unit for carrying out cell adjustment according to the cell adjustment influence parameters of the plurality of distribution units, and successively iterating the steps until the adjusted cell after configuration modification can accord with the adjustment target.

Optionally, the method for adjusting a cell, wherein the determining, according to the cell adjustment influence parameters of a plurality of distribution units, that one of the distribution units is a target adjustment unit for performing the cell adjustment includes:

calculating an evaluation parameter of each distribution unit adjusted according to a cell adjustment mode according to the cell adjustment influence parameters of the plurality of distribution units;

and determining one of the distribution units as the target adjusting unit according to the evaluation parameters calculated for each distribution unit.

Optionally, the cell adjustment method, wherein the calculating, according to the cell adjustment influence parameters of the multiple distribution units, an evaluation parameter that is adjusted by each distribution unit according to a cell adjustment mode includes:

calculating a network performance deterioration parameter and a network performance optimization parameter which are adjusted by each distribution unit according to a cell adjustment mode according to the cell adjustment influence parameters of the plurality of distribution units;

and calculating the evaluation parameters adjusted by each distribution unit according to the cell adjustment mode according to preset weight coefficient values respectively corresponding to the network performance deterioration parameters and the network performance optimization parameters.

Optionally, the method for adjusting a cell, wherein the determining, according to the evaluation parameter calculated by each of the distribution units, one of the distribution units as the target adjustment unit includes:

and selecting the distribution unit corresponding to the largest evaluation parameter as the target adjusting unit according to the evaluation parameter calculated for each distribution unit.

Optionally, the cell adjustment method includes that the cell adjustment influence parameter includes at least one of the following information obtained according to historical data and/or predicted data:

the load state information of the distribution unit, the mapping relation information between the terminal and the distribution unit, the service quality and the coverage parameter.

Optionally, the cell adjustment method, wherein the performing the cell adjustment includes: and carrying out attribution relation adjustment of cell merging, splitting or distribution units.

Optionally, in the method for adjusting a cell, after determining one target adjustment unit for performing cell adjustment in the process of determining each target adjustment unit for performing cell adjustment through successive iterations, the method further includes:

reacquiring cell adjustment impact parameters for the plurality of distributed elements used for the cell adjustment.

Optionally, the cell adjustment method, where the obtaining cell adjustment influence parameters of a plurality of distribution units performing cell adjustment includes:

dividing each distribution unit involved in the cell adjustment into a plurality of cell groups;

cell adjustment impact parameters are obtained for each distribution unit in one of a plurality of cell groups.

Optionally, the cell adjustment method, where the obtaining cell adjustment influence parameters of a plurality of distribution units used for cell adjustment includes:

acquiring cell adjustment influence parameters of a plurality of distribution units for cell adjustment by a base station and/or a network management unit;

after determining each target adjustment unit for cell adjustment on successive iterations, the method further comprises:

sending the determined identification information and configuration information of the target adjustment unit to the base station.

An embodiment of the present invention further provides a cell adjusting apparatus, where the cell adjusting apparatus includes:

a parameter obtaining module, configured to obtain cell adjustment influence parameters of a plurality of distribution units used for cell adjustment;

the processing module is used for determining each target adjusting unit for cell adjustment by successive iteration according to the cell adjustment influence parameters of the plurality of distribution units; the target adjusting unit is one of the distributing units, and the distributing unit is a minimum adjusting unit for adjusting the cell.

Optionally, the cell adjusting apparatus, wherein the processing module determines, through successive iteration, each target adjusting unit for performing cell adjustment according to the cell adjustment influence parameter of each distribution unit, and includes:

Optionally, the cell adjusting apparatus, wherein the processing module determines, according to the cell adjustment influence parameters of multiple distribution units, that one of the distribution units is a target adjustment unit for performing the cell adjustment, and includes:

Optionally, the cell adjusting apparatus, wherein the processing module calculates, according to the cell adjustment influence parameter of the plurality of distribution units, an evaluation parameter that is adjusted by each distribution unit according to a cell adjustment mode, and includes:

Optionally, the cell adjusting apparatus, wherein the processing module determines, according to the evaluation parameter calculated by each of the distribution units, that one of the distribution units is the target adjustment unit, and includes:

Optionally, the cell adjustment apparatus, wherein the cell adjustment influence parameter includes at least one of the following information obtained from historical data and/or predicted data:

Optionally, the cell adjusting apparatus, wherein the performing the cell adjustment includes: and carrying out attribution relation adjustment of cell merging, splitting or distribution units.

Optionally, in the cell adjustment apparatus, in the process of determining, through successive iteration, each target adjustment unit for performing cell adjustment, after determining one of the target adjustment units for performing cell adjustment, the parameter obtaining module is further configured to:

reacquiring cell adjustment affecting parameters of the plurality of distributed units for the cell adjustment.

Optionally, the cell adjusting apparatus, wherein the obtaining, by the parameter obtaining module, cell adjustment influence parameters of a plurality of distribution units performing cell adjustment includes:

Optionally, the cell adjusting apparatus, wherein the parameter obtaining module obtains cell adjustment influence parameters of a plurality of distribution units used for cell adjustment, includes:

the processing module, after determining each target adjustment unit for cell adjustment in successive iterations, is further configured to:

and sending the determined identification information and configuration information of the target adjusting unit to the base station.

The embodiment of the invention also provides a wireless intelligent controller, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor; wherein the processor implements the cell adjustment method as described in any one of the above when executing the program.

An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is configured to implement, when executed by a processor, the steps in the cell adjustment method according to any one of the foregoing embodiments.

At least one of the above technical solutions of the present invention has the following beneficial effects:

the cell adjusting method of the embodiment of the invention gradually performs cell splitting or merging by taking the minimum adjusting unit supported by the system as granularity when performing cell splitting or merging, and avoids the network mutation process during splitting or merging compared with the conventional technology, so as to reduce the influence on users and the deterioration on network performance parameters.

Drawings

Fig. 1 is a schematic diagram of a system architecture for implementing the cell adjustment method according to the embodiment of the present invention;

fig. 2 is a flowchart illustrating a cell adjustment method according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a cell adjustment apparatus according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a wireless intelligent controller according to an embodiment of the present invention.

Detailed Description

To make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

In order to solve the problem that large-area cell signal interruption occurs in the cell splitting and combining process in the conventional technology and affects user experience and network performance indexes, embodiments of the present invention provide a cell adjusting method, which gradually performs cell splitting or combining by using a minimum adjusting unit supported by a system as a granularity when performing cell splitting or adjusting, and avoids a network mutation process during splitting or combining compared with the conventional technology, so as to reduce the impact on users and the deterioration on network performance parameters.

Under an O-RAN architecture of an open intelligent Radio access network, a Radio Intelligent Controller (RIC) usually makes a judgment of cell splitting or merging on a network side according to an obtained information parameter for cell splitting or merging, and sends configuration or control information of each operation of cell splitting or merging to a base station, so as to finally complete cell splitting or merging.

Fig. 1 is a schematic diagram of a system architecture of a cell adjustment method according to an embodiment of the present invention, where the system may be a distributed/extended pico-station system. In particular, the distributed/extended pico-station system generally comprises a baseband processing unit 2, a switching unit 3 and a remote distributed unit 4. Wherein, according to different network configuration requirements, the baseband processing unit 2 completes all or part of the base station processing functions; the switching unit 3 completes the connection between the baseband processing unit 2 and the remote distributed unit 4, and is configured to receive a signal of the remote distributed unit 4 and send the received signal to the corresponding baseband processing unit 2, and is configured to send the received signal of the baseband processing unit 2 to the corresponding remote distributed unit 4; optionally, the switching unit 3 may also process part of signals transmitted between the baseband processing unit 2 and the remote distributed units 4, for example, combine signals received from multiple remote distributed units 4; the remote distributed unit 4 is configured to implement a radio frequency signal processing function, and optionally, may also have a partial baseband processing function.

It will be appreciated that the system includes distributed base stations, each of which includes a baseband processing unit and a radio frequency unit (not shown). The distributed base stations are connected with a network management unit (not shown in the figure) for realizing base station monitoring and network information control, and the non-real-time wireless intelligent controller is connected with the network management unit, on one hand, acquires data from the network management unit, and on the other hand, sends related decision configuration information to the network management unit. Or a plurality of distributed base stations are connected with a non-real-time wireless intelligent controller, parameter data are reported according to the requirements of the wireless intelligent controller, and a decision configuration message sent by the wireless intelligent controller is responded.

In addition, one baseband processing unit 2 may be connected to a plurality of switching units 3, and one switching unit 3 may be connected to a plurality of remote distributed units 4 according to the requirements of the deployment scenario. The wireless intelligent controller 1 is a functional unit introduced under an O-RAN architecture, and is used for managing and controlling a plurality of baseband processing units 2. The wireless intelligent controller 1 can obtain cell adjustment influence parameters (such as base station capacity parameters, load parameters, UE mobility parameters and the like) according to the cell splitting or merging requirements, generate cell splitting or merging decisions and a cell splitting or merging mode based on an artificial intelligence algorithm or an experience rule scheme such as machine learning, and send configuration information and control information of each operation step when cell splitting or merging is performed to the base station, and finally complete cell splitting or merging.

According to the system architecture adopting the cell adjustment method according to the embodiment of the present invention, the wireless intelligent controller 1 can obtain the cell adjustment influence parameters required for cell splitting or cell merging, and gradually perform cell splitting or cell merging with the minimum adjustment unit supported by the system as a granularity according to the obtained cell adjustment influence parameters, specifically, as shown in fig. 2, one embodiment of the cell adjustment method according to the embodiment of the present invention includes:

s210, acquiring cell adjustment influence parameters of a plurality of distribution units for cell adjustment;

s220, determining each target adjusting unit for adjusting the cells in a successive iteration mode according to the cell adjusting influence parameters of the plurality of distribution units; the target adjusting unit is one of the distributing units, and the distributing unit is a minimum adjusting unit for adjusting the cell.

The cell adjusting method of the embodiment of the invention determines each target adjusting unit for cell adjustment by iteration one by one according to the minimum adjusting unit for cell adjustment, so that the cell adjustment can be executed one by one according to each determined target adjusting unit.

In the embodiment of the present invention, optionally, the performing cell adjustment includes, but is not limited to: and carrying out attribution relation adjustment of cell merging, splitting or distribution units.

Referring to fig. 1, in a system architecture adopting the cell adjustment method according to the embodiment of the present invention, a minimum adjustment unit for performing cell adjustment may be a remote distributed unit 4 or a switching unit 3. When one switching unit 3 is connected with one remote distributed unit 4, the minimum adjusting unit is equivalent to the remote distributed unit 4 and the switching unit 3.

In the embodiment of the present invention, in order to ensure the best adjustment effect, the minimum adjustment unit is the remote distributed unit 4. I.e. in particular one remote distributed unit 4 per distributed unit.

By adopting the cell adjustment method of the embodiment of the invention, according to the cell adjustment influence parameters of a plurality of remote distributed units 4 for cell adjustment, a first target adjustment unit capable of cell adjustment is determined, whether the target adjustment unit meets the target of cell adjustment after the first determined target adjustment unit is subjected to configuration modification according to the cell adjustment is judged, if the target is not met, another remote distributed unit 4 except the determined target adjustment unit is continuously determined as the target adjustment unit in the remote distributed units 4, the configuration modification is carried out according to the cell adjustment, and the like, each target adjustment unit for cell adjustment is determined by successive iteration until the adjustment target can be reached.

Optionally, in this embodiment of the present invention, in step 220, in the process of determining each target adjustment unit for performing cell adjustment by successive iteration according to the cell adjustment influence parameters of a plurality of distribution units, after determining one of the target adjustment units for performing cell adjustment, the method further includes:

Specifically, after determining one of the target adjustment units for cell adjustment each time and performing configuration modification on the target adjustment unit, the target adjustment unit determined in the iterative process can be more accurate by reacquiring the cell adjustment influence parameters of the plurality of distribution units, so as to adapt to the parameter change for cell adjustment each time in the iterative process each time.

In this embodiment of the present invention, optionally, with reference to fig. 1 and fig. 2, in step S210, the acquiring cell adjustment influence parameters of a plurality of distribution units for cell adjustment includes:

Specifically, with the cell adjustment method according to the embodiment of the present invention, data collection for determining to perform cell adjustment may be sent by one of the base station and the network management unit, and when the requirement on the real-time performance of the cell adjustment is high, the base station may directly send a cell adjustment influence parameter for cell adjustment to the wireless intelligent controller 1; when the requirement on the real-time performance of the cell adjustment is not high, the network management unit may send a cell adjustment influence parameter for the cell adjustment to the wireless intelligent controller 1.

Furthermore, after determining each target adjustment unit for cell adjustment, the wireless intelligent controller 1 transmits the identification information and configuration information of the determined target adjustment unit to the base station, so that the base station can further perform corresponding configuration adjustment on the corresponding target adjustment unit according to the received identification information and configuration information.

In this embodiment of the present invention, optionally, the mentioned cell adjustment influence parameter includes at least one of the following information obtained according to the historical data and/or the predicted data:

the information of the load state of the distribution unit, the information of the mapping relation between the terminal and the distribution unit, the service quality and the coverage parameter.

Optionally, the load status information includes: radio Resource Control (RRC) connection number, resource block utilization, uplink/downlink traffic, and UE number for data transmission.

The load status information comprises the above information that can indicate the capacity of the distribution unit, wherein the larger the capacity the distribution unit has a larger impact on the network performance indication and at the same time the impact on the cell adjustment effect is larger.

Optionally, the mapping relationship information between the terminal and the distribution unit includes a mapping relationship and change information between the terminal and the distribution unit, and according to the mapping relationship information, the influence of the cell adjustment on the distribution unit may be determined, and the future load information of the distribution unit may also be predicted.

It should be noted that, in the cell adjustment method according to the embodiment of the present invention, in step S210 and step S220, the obtained cell adjustment influence parameter is a cell adjustment influence parameter of each distribution unit, where the distribution unit is a minimum adjustment unit for performing cell adjustment, that is, to obtain a parameter under the minimum adjustment unit, but not a cell-level parameter, for example, as shown in fig. 1, each distribution unit may be a remote distributed unit 4, and in the embodiment of the present invention, information parameters, such as a number of users and a flow rate, under each remote distributed unit 4 need to be obtained.

In the embodiment of the present invention, after the cell adjustment influence parameters of the multiple distribution units performing cell adjustment are obtained in step S210, the influence on the network performance index and the influence on the cell adjustment effect when performing cell adjustment on each distribution unit can be determined according to the obtained cell adjustment influence parameters of the multiple distribution units, and on this basis, the above process can be performed cyclically, and the target adjustment units are continuously selected from the remaining distribution units, so that each target adjustment unit performing cell adjustment is determined successively and iteratively, and gradual execution of cell adjustment is implemented.

Optionally, with the cell adjustment method according to the embodiment of the present invention, in step S210, the obtaining of cell adjustment influence parameters of multiple distribution units for cell adjustment includes:

acquiring a cell adjustment influence parameter of each distribution unit involved in the cell adjustment; or alternatively

In any of the above-described aspects, when performing cell adjustment, it is possible to specify a plurality of distribution units involved in performing cell adjustment, and to select a target adjustment unit from the plurality of specified distribution units.

For example, when the cell is adjusted to be cell splitting,

cells

1, 2, \8230; \8230inthe current system are distributed, N belongs to the same cell, and a new cell needs to be added to the base station of the cell to implement cell splitting.

In the first embodiment of the present invention, a plurality of distribution units for cell adjustment are determined, each of the plurality of distribution units involved in cell splitting is determined, and based on this, when a target adjustment unit for cell splitting is determined, it is necessary to select the target adjustment unit from the

distribution units

1, 2, \ 8230 \ 8230;, and N in a cell.

In the second embodiment of determining a plurality of distribution units for cell adjustment, the

distribution units

1, 2, \8230; \\ N involved in cell splitting may be divided into a plurality of cell groups, for example, into two cell groups, where the first cell group includes M distribution units and the second cell group includes L distribution units. It can be determined that, when cell splitting is performed, M distribution units in the first cell group remain unchanged in the existing cell, and L distribution units in the second cell group are newly added cells. Based on this, when determining the target adjustment unit for cell splitting, it is necessary to select the target adjustment unit according to the L distribution units in the second cell group.

By adopting the second implementation manner of the target cell determination, the calculation complexity of the cell adjustment process can be reduced, and the cell adjustment efficiency can be further improved.

Optionally, in step S220, the successively iteratively determining each target adjustment unit for performing cell mode adjustment according to the cell adjustment influence parameter of each distribution unit includes:

determining one of the distribution units as a target adjustment unit for cell adjustment according to the cell adjustment influence parameters of the plurality of distribution units;

and carrying out configuration modification on the determined target adjusting unit, when the adjusted cell after configuration modification does not accord with the adjusting target of cell adjustment, determining one of the distribution units as a target adjusting unit for cell adjustment according to the cell adjustment influence parameters of the plurality of distribution units, and successively iterating the steps until the adjusted cell after configuration modification can accord with the adjusting target.

In this embodiment of the present invention, when determining that one of the distribution units is a target adjustment unit for performing the cell adjustment, the determined target adjustment unit is a distribution unit that is determined to be other than the target adjustment unit in the distribution units.

In the above manner, according to the cell adjustment influence parameter of each distribution unit, one of the distribution units which is not determined as the target adjustment unit is determined as the target adjustment unit each time, and whether the adjustment cells determined by all the target adjustment units after configuration modification meet the adjustment target of cell adjustment is judged, and when the adjustment cells do not meet the adjustment target, the next target adjustment unit needs to be further determined; when the adjustment target is met, the next target adjustment unit determination is not needed, the configuration modification of each target adjustment unit is completed, and the cell adjustment is completed.

Specifically, when the cell is adjusted to perform cell splitting, the adjusted cells determined by all the target adjustment units after performing configuration modification are: all the target adjusting units are configured and modified to form a newly added cell; judging whether the adjusted cells determined after all the target adjusting units are configured and modified meet the adjusted targets of cell adjustment, specifically: judging whether the network state of the newly added cell meets a preset state to be reached by cell splitting;

when the cell adjustment is to perform cell merging, all the target adjustment units determine the adjustment cells (adjusted cells) after configuration modification as follows: all the target adjusting units are combined with the cell to be combined to form a combined cell after configuration modification; judging whether the adjusted cells determined after all the target adjusting units are configured and modified conform to the adjusted targets of cell adjustment, specifically: judging whether the formed merging cells accord with a preset state to be reached by cell merging;

when the cell is adjusted to perform the home relationship adjustment of the distribution unit, all the target adjustment units determine the adjustment cells (adjusted cells) after performing configuration modification as follows: all the target adjusting units are modified and configured to be the same as the preset cell, and the preset cell adds the cell behind the target adjusting unit; judging whether the adjusted cells determined after all the target adjusting units are configured and modified meet the adjusted targets of cell adjustment, specifically: and judging whether the formed adjusting cell meets the preset state to be reached after the affiliation is adjusted.

Specifically, the preset state to be achieved by the cell splitting, merging and home relationship adjustment may be specifically determined according to the network adjustment requirement.

In this embodiment of the present invention, optionally, the determining, according to the cell adjustment influence parameter of each distribution unit, that one of the distribution units is a target adjustment unit for performing the cell adjustment includes:

calculating an evaluation parameter of each distribution unit adjusted according to a cell adjustment mode according to the cell adjustment influence parameters of a plurality of distribution units;

By adopting the above manner, according to the cell adjustment influence parameter for the distribution unit, the evaluation parameter adjusted by the distribution unit according to the cell adjustment mode can be calculated, so that the target adjustment unit can perform quantitative determination to ensure the accuracy determined by the target adjustment unit.

Optionally, the determining one of the distribution units as the target adjusting unit according to the evaluation parameter calculated by each of the distribution units includes:

and selecting the distribution unit corresponding to the largest evaluation parameter as the target adjusting unit according to the evaluation parameters calculated by aiming at each distribution unit.

Optionally, according to different application scenario requirements, the network performance degradation parameter and the network performance optimization parameter may be different, and are mainly used for network performance adjusted according to a cell from three-dimensional constant distribution units of coverage, capacity, and quality of service. Specifically, the network performance degradation parameter may include Reference Signal Receiving Power (RSRP), a number of handovers and/or a call drop rate. Wherein, the larger the network performance deterioration parameter is, the more serious the network performance index deterioration is.

The network performance optimization parameters may include throughput, and the throughput after cell adjustment may be defined by the network performance optimization parameters, and when the throughput is higher, it indicates that the effect on the absorption capacity after cell adjustment is better.

From the above, when determining each target adjustment unit for cell adjustment, it is desirable that the smaller the network performance degradation parameter, the better the network performance optimization parameter.

Based on the principle, the evaluation parameters respectively calculated corresponding to each distribution unit are obtained by comprehensive calculation through predetermining the weight coefficient values respectively corresponding to the network performance deterioration parameters and the network performance optimization parameters, and the distribution unit corresponding to the maximum evaluation parameter is selected to be determined as the target adjusting unit.

With reference to fig. 1, a distribution unit corresponding to a remote distribution unit in the embodiment of the present invention is taken as an example, and various implementation situations of the cell adjustment method in the embodiment of the present invention are described below as examples.

In the first embodiment, the cell is adjusted to perform cell splitting, i.e. a newly added cell

Setting remote distributed

units

1, 2, \8230 \ 8230:, N belongs to the same cell in the current system, and the goal of cell splitting is to add a new cell on the basis of the cell, so that the downlink average rate of two cells is not lower than X Mbps when the service is busy and the switching times between cells are not more than Y times.

The specific implementation process of the cell adjustment method in the embodiment of the invention is as follows:

based on the cell adjustment influence parameters (including the load state information of the distribution unit and/or the attribution relation prediction information between the terminal and the distribution unit) of N remote distributed units in the cell, calculating a network performance deterioration parameter E1 and a network performance optimization parameter E2 according to the application scene requirements;

for example, when measured from the coverage dimension, RSRP is used to define a network performance degradation parameter E1, and if RSRP fed back by a terminal before cell splitting is-80 dBm, if RSRP fed back by one remote distributed unit is split into-90 dBm from another cell, the network performance degradation parameter E1 may be defined as-80- (-90) =10dbm, and the larger the E1, the more serious the network performance degradation is. The network performance optimization parameter E2 may be defined by throughput of the distributed radio frequency unit, and throughput of a cell newly split by the selected target adjusting unit may be defined by the network performance optimization parameter E2, where if the distributed radio frequency unit is split into a new cell, the larger E2 is, which indicates that the better the effect of the new cell on the absorption capacity is.

Based on the above manner, for each distributed radio frequency unit, according to the cell adjustment influence parameter, E1 and E2 may be respectively calculated, and further according to the evaluation parameter E = weight 1 × 1/E1+ weight 2 × E2, that is, the evaluation parameter E corresponding to each distributed radio frequency unit may be calculated, and the remote distributed unit with the largest evaluation parameter E is selected as the first determined target adjustment unit;

modifying and configuring a first determined target adjusting unit into a new cell, and evaluating whether the two current cells meet the adjusting target of cell splitting (when the service is busy, the downlink average rate of the two cells is not lower than X Mbps, and the switching times between the cells are not more than Y times);

if the adjustment target is met, completing cell splitting;

if the adjustment target is not met, the mode of determining the target adjustment unit according to the evaluation parameter E is continuously adopted, and the next target adjustment unit is continuously selected from the rest remote distributed units of the N remote distributed units until the configuration is modified into a new cell according to all the target adjustment units, and when the adjustment target of cell splitting can be met, the cell splitting is completed.

In the second embodiment, the cell is adjusted to perform cell splitting, i.e. a newly added cell

Setting remote distributed

units

1, 2, 8230, N belongs to the same cell in the current system, and the aim of cell splitting is to add a new cell on the basis of the cell, so that the downlink average rate of two cells is not lower than X Mbps when the service is busy, and the switching times between cells do not exceed Y times.

and dividing the N remote distributed units into two cell groups according to the cell division target, wherein the first cell group comprises M remote distributed units, the second cell group comprises L remote distributed units, and M + L = N. Setting M remote distributed units of a first cell group to keep the original cell unchanged, and modifying L remote distributed units of a second cell group into a newly added cell;

according to the determined L remote distributed units of the second cell group, calculating a network performance deterioration parameter E1 and a network performance optimization parameter E2 according to cell adjustment influence parameters (including load state information of the distributed units and/or attribution relation prediction information between the terminal and the distributed units) of the L remote distributed units; the determination method of the network performance deterioration parameter E1 and the network performance optimization parameter E2 is also determined according to the above implementation, and will not be described herein;

further, according to the evaluation parameter E = weight 1 × 1/E1+ weight 2 × E2, the evaluation parameter E corresponding to each distributed radio frequency unit of the L remote distributed units can be calculated, and the remote distributed unit with the largest evaluation parameter E is selected as the first determined target adjusting unit;

modifying and configuring the first determined target adjusting unit into a new cell, and evaluating whether two current cells (the two cells comprise the determined new cell and an original cell consisting of distributed radio frequency units except the determined target adjusting unit in the N distributed radio frequency units) meet the adjusting target of cell splitting (the downlink average rate of the two cells is not lower than X Mbps when the service is busy and the switching times between the cells are not more than Y times);

if the adjustment target is met, cell splitting is completed;

if the adjustment target is not met, the mode of determining the target adjustment unit according to the evaluation parameter E is continuously adopted, and the next target adjustment unit is continuously selected from the rest remote distributed units of the L remote distributed units until the configuration is modified into a new cell according to all the target adjustment units, and when the adjustment target of cell splitting can be met, the cell splitting is completed.

Compared with the cell splitting process of the first implementation structure, the cell splitting process of the implementation case can improve the processing efficiency of cell splitting.

In the third embodiment, the cell mode is adjusted to perform cell merging, i.e. deleting the cell

Remote distributed

units

1, 2, \ 8230; \ 8230;, M belongs to cell 1, remote distributed

units

1, 2, \ 8230; \ 8230;, N belongs to cell 2 in the current system are set. The goal of cell adjustment is to delete one cell on a two-cell basis to save processing resources.

The specific implementation process of the cell adjustment method of the embodiment of the invention is as follows:

determining a cell with small service volume as a deleted cell according to the current service volume and/or the preset service volume in the future time length of the cell 1 and the cell 2, wherein the cell 1 is set as the determined deleted cell;

calculating a network performance deterioration parameter E1 and a network performance optimization parameter E2 according to the cell adjustment influence parameters (including the load state information of the distribution unit and/or the home relationship prediction information between the terminal and the distribution unit) of each remote distributed unit in the cell 1;

calculating an evaluation parameter E corresponding to each distributed radio frequency unit in the deleted cell according to the evaluation parameter E = weight 1 × 1/E1+ weight 2 × E2, and selecting a remote distributed unit with the maximum evaluation parameter E as a first determined target adjusting unit;

modifying and configuring the determined first target adjustment unit to be a reserved cell, namely modifying and configuring the first target adjustment unit to be the same as the configuration of the cell 2; evaluating whether a cell in which the remote distributed unit in cell 2 is combined with the remote distributed unit in cell 1 determined as the target adjustment unit satisfies the adjustment target for cell merging;

if the adjustment target is met, cell merging is completed;

if the adjustment target is not met, the mode of determining the target adjustment unit according to the evaluation parameter E is continuously adopted, and the next target adjustment unit is continuously selected from the rest remote distributed units in the cell 1 until all the target adjustment units and the cells combined by the remote distributed units in the cell 2 meet the adjustment target of cell combination, and cell combination is completed.

In the fourth implementation case, the cell is adjusted to perform the home relation adjustment of the distribution unit

Remote distributed

units

1, 2, \ 8230; \ 8230;, M belongs to cell 1, remote distributed

units

1, 2, \ 8230; \ 8230;, N belongs to cell 2 in the current system are set. The adjustment target of cell adjustment is to adjust the home relationship of the remote distributed units of the two cells, so that the difference of the UE quantity of the two cells at the future T moment is less than X and the switching times between the cells does not exceed Y times; or according to the prediction of the network load and the UE mobility prediction, the home relationship of the remote distributed units of the two cells is adjusted to be more suitable for the network requirement at the future T moment.

respectively adjusting influence parameters according to the cells of the remote distributed units in the cell 1 and the cell 2, selecting P remote distributed units to be modified into the cell 2 from M remote distributed units, and selecting Q remote distributed units to be modified into the cell 1 from N remote distributed units;

calculating a network performance deterioration parameter E1 and a network performance optimization parameter E2 according to the cell adjustment influence parameters (including load state information of the distribution units and/or attribution relation prediction information between the terminal and the distribution units) of each remote distributed unit in the P remote distributed units and the Q remote distributed units;

calculating an evaluation parameter E corresponding to each distributed radio frequency unit in the P remote distributed units and the Q remote distributed units according to the evaluation parameter E = weight 1 × 1/E1+ weight 2 × E2, and selecting the remote distributed unit with the maximum evaluation parameter E as a first determined target adjusting unit;

when the first determined target adjustment unit is one of the P remote distributed units, the determined target adjustment unit is modified to be the same as cell 2; when the first determined target adjustment unit is one of the Q remote distributed units, the determined target adjustment unit is modified to be configured to be the same as cell 1;

evaluating whether the two cells after the target adjusting unit modifies the configuration meet the adjusting target;

if the adjustment target is met, the attribution relation adjustment is completed;

if the adjustment target is not met, the method of determining the target adjustment unit according to the evaluation parameter E is continuously adopted, and the next target adjustment unit is continuously selected from the remaining remote distributed units of the P remote distributed units and the Q remote distributed units until the cell 1 and the cell 2 can meet the adjustment target after configuration modification is carried out according to the determined target adjustment unit, and then the adjustment of the affiliation relationship is completed.

The home relationship adjusting process can directly adjust the home relationship of the cell according to the network bearing state in the network system, and the adjusting process is realized by modifying the remote distributed adjusting units one by one without generating network mutation, thereby not influencing the user experience.

It should be noted that the above four implementation cases are merely examples of the cell adjustment method according to the embodiment of the present invention, and the specific implementation is not limited to include only the above implementation processes.

According to the above, by adopting the cell adjustment method of the embodiment of the present invention, under the condition that a plurality of remote distributed units share a cell, based on the modifiable minimum granularity (minimum adjustment unit) supported by the system, the wireless intelligent controller collects data and gives out each target adjustment unit to be modified, and modifies the target adjustment units one by one, so as to realize cell splitting, cell merging or home relationship adjustment between the remote distributed units and the cell;

in addition, when a target adjusting unit is determined from the distribution units in the target cell to be adjusted, according to the cell adjustment influence parameters (including load state information of the distribution units and/or attribution relation prediction information between the terminal and the distribution units and the like) of each distribution unit, determining the distribution unit with the smallest influence on the system performance as a first target adjusting unit;

further, when the cell splitting is performed by adopting the above method, a first target adjustment unit can be selected from all distribution units related to the cell splitting, the first target adjustment unit is configured as a new cell, and new network topology and capacity distribution are evaluated, if the evaluation result does not meet the target requirement of the cell splitting, the selection process of the target adjustment unit is iterated circularly until the network topology and the capacity distribution meet the target requirement of the cell splitting;

optionally, when a cell is split, the distribution units related to all cell splitting may be divided into different cell groups in advance, each cell group corresponds to one cell, a distribution unit set that each cell corresponds to needs to be modified may be obtained on the basis of the grouping, a first modified target unit is selected from the distribution unit set that each cell group needs to be modified, and the first target unit is modified and configured as a new cell, then a new network topology and capacity distribution are evaluated, and if the evaluation result does not meet the target requirement of cell splitting, the selection process of the target adjustment unit is iterated circularly until the network topology and capacity distribution meet the target requirement of cell splitting;

optionally, when cell merging is performed, determining a distribution unit set to be modified according to a distribution unit related to a cell merging target, that is, determining a target cell to be adjusted, selecting a first modified distribution unit in the adjusted target cell as a target adjustment unit, modifying and configuring the first modified distribution unit into a new cell, and then completing configuration updating of remaining target adjustment units to be modified of the cell one by one according to the adjustment target of cell merging;

optionally, when performing the home relationship adjustment between the remote distributed units and the cells, selecting a first modified distributed unit in the set of distributed units to be modified (target cell to be adjusted) as a target adjustment unit, performing configuration modification on the first determined target adjustment unit to perform the home relationship adjustment, and then completing configuration update of remaining distributed units in the determined set of distributed units one by one according to an adjustment target of the home relationship adjustment.

By adopting the cell adjusting method provided by the embodiment of the invention, aiming at the problem that the cell level service interruption occurs in the cell splitting or merging in the prior art and the terminal user experience and the network performance index are influenced, a gradual cell splitting and merging scheme is provided, and the cell splitting and merging are gradually carried out on the basis of the modifiable minimum granularity supported by the system. Because the method can gradually modify the system by taking the minimum adjusting unit of cell adjustment as granularity, compared with the mutation process, the method can reduce the number of the affected users and the deterioration of the network performance parameters as much as possible. Particularly in a distributed/extended pico-station system, overlapping coverage areas exist among different remote distributed units, and the method can obviously improve the cell splitting and combining performance.

Furthermore, the method can be used for modifying the remote distributed adjusting units one by one to realize cell adjustment, network mutation is avoided, the method can also be applied to the home relationship adjustment between the remote distributed adjusting units and the cells, and user experience is not influenced.

Another aspect of the embodiments of the present invention further provides a cell adjusting apparatus, as shown in fig. 3, the apparatus includes:

a parameter obtaining module 310, configured to obtain cell adjustment influence parameters of a plurality of distribution units for cell adjustment;

a processing module 320, configured to successively iteratively determine each target adjustment unit for performing cell adjustment according to the cell adjustment influence parameters of the multiple distribution units; the target adjusting unit is one of the distributing units, and the distributing unit is a minimum adjusting unit for adjusting the cell.

The cell adjusting device of the embodiment of the invention gradually splits or merges cells by taking the smallest adjusting unit supported by the system as granularity when splitting or adjusting the cells, and avoids the network mutation process when splitting or merging compared with the conventional technology so as to reduce the influence on users and the deterioration on network performance parameters.

Optionally, in the cell adjustment apparatus, the processing module 320 determines, by successive iteration, each target adjustment unit for performing cell adjustment according to the cell adjustment influence parameter of each distribution unit, where the determining includes:

Optionally, the cell adjusting apparatus, wherein the determining, by the processing module 320 according to the cell adjustment influence parameter of a plurality of distribution units, that one of the distribution units is a target adjustment unit for performing the cell adjustment includes:

Optionally, the cell adjusting apparatus, wherein the processing module 320 calculates, according to the cell adjustment influence parameter of a plurality of distribution units, an evaluation parameter for each distribution unit to adjust according to a cell adjustment mode, and includes:

Optionally, in the cell adjustment apparatus, the determining, by the processing module 320, one of the distribution units as the target adjustment unit according to the evaluation parameter calculated by each of the distribution units includes:

Optionally, the cell adjusting apparatus, wherein the cell adjusting influence parameter includes at least one of the following information obtained according to historical data and/or predicted data:

Optionally, the cell adjusting apparatus, wherein the performing the cell adjustment includes: and carrying out cell merging, splitting or home relation adjustment of the distribution units.

Optionally, in the cell adjustment apparatus, in the process of determining each target adjustment unit for performing cell adjustment through successive iterations, the parameter obtaining module 310 is further configured to, after determining one of the target adjustment units for performing cell adjustment:

Optionally, in the cell adjustment apparatus, the acquiring, by the parameter acquiring module 310, cell adjustment influence parameters of a plurality of distribution units performing cell adjustment includes:

Optionally, the cell adjusting apparatus, wherein the parameter obtaining module 310 obtains the cell adjustment influence parameters of the plurality of distribution units used for cell adjustment, and the cell adjustment influence parameters include:

the processing module 320, after determining each target adjustment unit for cell adjustment in successive iterations, is further configured to:

Another aspect of the embodiments of the present invention further provides a wireless intelligent controller, as shown in fig. 4, including: a processor 401; and a memory 403 connected to the processor 401 through a bus interface 402, wherein the memory 403 is used for storing programs and data used by the processor 401 in executing operations, and the processor 401 calls and executes the programs and data stored in the memory 403.

The transceiver 404 is connected to the bus interface 402, and is configured to receive and transmit data under the control of the processor 401, and specifically, the processor 401 is configured to read a program in the memory 403, and perform the following processes:

determining each target adjusting unit for cell adjustment by successive iteration according to the cell adjustment influence parameters of the plurality of distribution units; the target adjustment unit is one of the distribution units, and the distribution unit is a minimum adjustment unit for performing the cell adjustment.

Optionally, in the wireless intelligent controller, the processor 401 determines each target adjustment unit for cell adjustment through successive iteration according to the cell adjustment influence parameter of each distribution unit, specifically:

and carrying out configuration modification on the determined target adjusting unit according to a preset mode, when the adjusted cell after configuration modification does not accord with the adjustment target, determining one of the distribution units as a target adjusting unit for adjusting the cell according to the cell adjustment influence parameters of the plurality of distribution units, and successively iterating until the adjusted cell after configuration modification can accord with the adjustment target.

Optionally, in the wireless intelligent controller, the processor 401 determines, according to the cell adjustment influence parameters of multiple distribution units, that one of the distribution units is a target adjustment unit for performing the cell adjustment, specifically:

calculating an evaluation parameter for each distribution unit to perform cell adjustment according to the cell adjustment influence parameters of the plurality of distribution units;

and determining one of the distribution units as the target adjusting unit according to the evaluation parameter calculated by each distribution unit.

Optionally, in the wireless intelligent controller, the processor 401 calculates an evaluation parameter for each distribution unit to perform the cell adjustment according to the cell adjustment influence parameter of the plurality of distribution units, specifically:

calculating a network performance deterioration parameter and a network performance optimization parameter of each distribution unit for cell adjustment according to the cell adjustment influence parameters of the plurality of distribution units;

and calculating the evaluation parameters of each distribution unit for cell adjustment according to preset weight coefficient values respectively corresponding to the network performance deterioration parameters and the network performance optimization parameters.

Optionally, in the wireless intelligent controller, the processor 401 determines, according to the evaluation parameter calculated by each of the distribution units, that one of the distribution units is the target adjustment unit, specifically:

and selecting the distribution unit corresponding to the largest evaluation parameter as the target adjusting unit according to the evaluation parameter calculated by each distribution unit.

Optionally, the wireless intelligent controller, wherein the cell adjustment influence parameter includes at least one of the following information obtained according to historical data and/or predicted data:

Optionally, the wireless intelligent controller, wherein the performing the cell adjustment includes: and carrying out cell merging, splitting or home relation adjustment of the distribution units.

Optionally, in the wireless intelligent controller, in the process of determining each target adjustment unit for performing cell adjustment in successive iterations, after determining one target adjustment unit for performing cell adjustment, the processor 401 is further configured to:

Optionally, the acquiring, at the processor 401, cell adjustment influence parameters of a plurality of distribution units performing cell adjustment includes:

Optionally, the wireless intelligent controller, wherein the processor 401 obtains cell adjustment influence parameters of a plurality of distribution units for cell adjustment, includes:

after processor 401 successively iteratively determines each target adjustment unit for cell adjustment, it is further configured to:

Those skilled in the art will understand that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program includes instructions for executing all or part of the steps of the above methods; and the program may be stored in a readable storage medium, which may be any form of storage medium.

In addition, the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the program is executed by a processor to implement the steps in the cell adjustment method as described in any one of the above.

In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be physically included alone, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

The integrated unit implemented in the form of a software functional unit may be stored in a computer-readable storage medium. The software functional unit is stored in a storage medium and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to perform some steps of the transceiving method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a portable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other media capable of storing program codes.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.

Claims

1. A method for cell adjustment, comprising:

determining one of the distribution units as a target adjustment unit for cell adjustment according to the cell adjustment influence parameters of the plurality of distribution units; performing configuration modification on the determined target adjusting units, determining one of the distribution units as a target adjusting unit for performing cell adjustment according to the cell adjustment influence parameters of a plurality of distribution units when the adjusted cell after configuration modification does not accord with an adjustment target, and determining each target adjusting unit for performing cell adjustment by successive iteration until the adjusted cell after configuration modification can accord with the adjustment target; the target adjustment unit is one of the distribution units, the distribution unit is a minimum adjustment unit for performing the cell adjustment, and the distribution unit is a remote distributed unit or a switching unit.

2. The method of claim 1, wherein the determining one of the distribution units as a target adjustment unit for performing the cell adjustment according to the cell adjustment influence parameters of a plurality of distribution units comprises:

3. The method according to claim 2, wherein the calculating an evaluation parameter for each distribution unit to adjust according to a cell adjustment method according to the cell adjustment influence parameters of a plurality of distribution units comprises:

4. The cell adjustment method according to claim 3, wherein the determining one of the distribution units as the target adjustment unit according to the evaluation parameter calculated by each of the distribution units comprises:

5. The cell adjustment method according to any of claims 1 to 4, characterized in that the cell adjustment influencing parameters comprise at least one of the following information obtained from historical data and/or predicted data:

6. The cell adjustment method of claim 1, wherein in the process of determining each target adjustment unit for cell adjustment in successive iterations, after determining one of the target adjustment units for cell adjustment, the method further comprises:

7. The cell adjustment method according to claim 1, wherein the obtaining of the cell adjustment influence parameters of the plurality of distributed units performing cell adjustment comprises:

8. The cell adjustment method according to claim 1, wherein the obtaining of the cell adjustment influencing parameters of the plurality of distributed units for cell adjustment comprises:

9. A cell adjustment apparatus, comprising:

a processing module, configured to determine, according to the cell adjustment influence parameters of multiple distribution units, one of the distribution units as a target adjustment unit for performing the cell adjustment; performing configuration modification on the determined target adjusting units, when the adjusted cells after configuration modification do not accord with the adjustment target, determining one of the distribution units as a target adjusting unit for cell adjustment according to the cell adjustment influence parameters of a plurality of distribution units, and successively iterating and determining each target adjusting unit for cell adjustment until the adjusted cells after configuration modification can accord with the adjustment target; the target adjusting unit is one of the distributing units, the distributing unit is a minimum adjusting unit for adjusting the cell, and the distributing unit is a remote distributing unit or a switching unit.

10. A wireless intelligent controller comprising a memory, a processor and a computer program stored on said memory and executable on said processor; a processor implementing the cell adjustment method according to any one of claims 1 to 8 when executing the program.

11. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the cell adjustment method according to any one of claims 1 to 8.