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CN101557654A - Method and system for network coverage optimization processing - Google Patents

Method and system for network coverage optimization processing Download PDF

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Publication number
CN101557654A
CN101557654A CN 200810090657 CN200810090657A CN101557654A CN 101557654 A CN101557654 A CN 101557654A CN 200810090657 CN200810090657 CN 200810090657 CN 200810090657 A CN200810090657 A CN 200810090657A CN 101557654 A CN101557654 A CN 101557654A
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base station
coverage optimization
data
coverage
adjust
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CN 200810090657
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CN101557654B (en
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高音
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Shanghai Source Hui Information Polytron Technologies Inc
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ZTE Corp
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Abstract

The invention relates to a method for network coverage optimization processing, which comprises the steps: in step S102, collecting first coverage optimization data related to a local party and second coverage optimization data related to other base stations by a base station, judging whether coverage optimization is carried out or not in the local party according to a predetermined decision rule, if so, carrying out step S104, or else, carrying out step S106 and step S108, in step S104, if so, carrying out adjustment by the base station according to a first predetermined coverage optimization rule, in step S106, or else processing the first coverage optimization data and the second coverage optimization data, reporting the data to a network administration node, determining an adjusting result by the network administration node according to local configuration data, the first coverage optimization data, the second coverage optimization data and a second predetermined coverage optimization rule, informing the base station and/or other base stations of the adjusting result, and in step S108, carrying out corresponding adjustment by the base station and/or other stations according to the adjusting result. In addition, the invention also discloses a system for network coverage optimization processing.

Description

Network coverage optimization process method and system
Technical field
The present invention relates to the communications field, and especially, relate to a kind of network coverage optimization process method and system.
Background technology
Long Term Evolution (Long Term Evolution has been described among the 36300-800, LTE) network is by public land Access Network (the Evolved UTRAN of evolution, E-UTRAN) base station (NodeB of evolution, promptly, Evolved NodeB, abbreviate eNB as) and (Evolved Packet Core EPC) forms, and this network is the flattening network at evolution bag center.
Wherein, EUTRAN comprises the set of the eNB that is connected by the S1 interface with EPC, can connect by X2 between the eNB.Here, S1, X2 are logic interfacing.And an EPC can manage one or more eNB, and a NodeB also can be controlled by a plurality of EPC, and an eNB can manage one or more sub-districts.
On the one hand, operator wishes to reduce operation cost and maintenance cost, yet setting up and run network needs a lot of work, for example, need plan, dispose, optimize, calculating, adjustment, test, guard against false, minimizing failure, self-recovery.The user need simplify the use flow process on the other hand, and for example, for Home NodeB equipment, the user buys back home promptly, wishes that the equipment of buying is PnP device, and one powers on can obtain configuration operation automatically.Consider above two aspects, the development trend of next generation mobile networks must be self-configuring, self-optimizing, self adaptation as can be seen, makes human factor more and more littler to the influence of network.
Based on this trend, the self-organizing network notion has been proposed at present, self-organizing network mainly comprises self-configuring and self-optimizing two aspects.Particularly owing to the existence of housed device, the power-on and power-off meeting of housed device causes the covering of network to be in the dynamic change, and can cause the sub-district coverage condition in certain geographic area constantly to change in the network operation.
The reason that causes coverage condition constantly to change is a lot, for example, the planning mistake that occurs in the network planning, for example, the cavity appears covering in the area of planning; Operator need arrange net expansion or propose the integration of new arrange net planning and former network, for example newly-increased base station, newly sets up the sub-district; Because it is discontinuous that the network equipment changes the intolerable network coverage cause, the business that causes service disconnection or switch to this area can't continue, the unusual or electricity down such as the base station, the unusual or deletion in sub-district.Under above situation, all be necessary the network coverage is optimized, make network performance in time be consistent with network change.
Usually, the network coverage utilizes the planning instrument to be layouted in the base station by the network planning initial stage and cell configuration is planned, and mainly is to rely on network optimization instrument manually to adjust in network operation process.
So not only a large amount of man power and materials can be consumed, and untimely, inaccurate problem can be occurred optimizing and revising.Yet, do not propose as yet at present to solve the technical scheme that the artificial optimization adjusts the problem of being brought.
Summary of the invention
Consider the problems referred to above and make the present invention, for this reason, main purpose of the present invention is to provide a kind of network coverage optimization process mechanism, to solve the artificial problem of adjusting untimely, inaccurate and consumes resources in the correlation technique.
According to embodiments of the invention, provide a kind of network coverage optimization process method.
This method comprises: step S102, collect and its local first relevant coverage optimization data and the second coverage optimization data relevant with other base station the base station, and whether carry out coverage optimization in this locality according to the predetermined decision rule judgment, be judged as under the situation that is, execution in step S104, otherwise execution in step S106 and step S108; Step S104, the base station is adjusted according to the first predetermined coverage optimization rule; Step S106, the first coverage optimization data and the second coverage optimization data are handled report management node, management node is determined to adjust the result according to its local configuration data, the first coverage optimization data, the second coverage optimization data and the second predetermined coverage optimization rule, and will adjust result notification base station and/or other base station; Step S108, base station and/or other base station adjust accordingly according to adjusting the result.
Wherein, in step S104 or step S108, the adjustment of carrying out comprise following one of at least: adjust aerial angle, adjust transmitting power, adjust the adjoining relation of sub-district.
In addition, the above-mentioned first coverage optimization data can comprise following one of at least: subscriber equipment measurement report, sub-district cutting off rate Counter Value, BTS management configuration data, cell load level.The above-mentioned first coverage optimization data can comprise following one of at least: toggle count device value between inter base station interference measurement report, base station.
In addition, the local configuration data of above-mentioned management node can comprise: the identifier of the base station that management node is managed, geographical position, neighbouring relations, and the cell identifier in each base station of managing, coverage and adjoining cell list.
According to another embodiment of the present invention, provide a kind of network coverage optimization process system.
This system comprises: the base station, be used to collect and its local first relevant coverage optimization data and the second coverage optimization data relevant with other base station, and whether carry out coverage optimization in this locality according to the predetermined decision rule judgment, be judged as under the situation that is, the first predetermined coverage optimization rule according to its this locality is adjusted, otherwise the first coverage optimization data and the second coverage optimization data are reported management node, and adjust accordingly according to adjustment result from management node; Management node is used for determining to adjust the result according to its local configuration data, the first coverage optimization data, the second coverage optimization data and the second local predetermined coverage optimization rule, and will adjusts result notification base station and/or other base station.
Wherein, the adjustment carried out of base station comprise following one of at least: adjust aerial angle, adjust transmitting power, adjust the adjoining relation of sub-district.
In addition, the above-mentioned first coverage optimization data can comprise following one of at least: subscriber equipment measurement report, sub-district cutting off rate Counter Value, BTS management configuration data, cell load level.The above-mentioned first coverage optimization data can comprise following one of at least: toggle count device value between inter base station interference measurement report, base station.
In addition, the local configuration data of above-mentioned management node can comprise: the identifier of the base station that management node is managed, geographical position, neighbouring relations, and the cell identifier in each base station of managing, coverage and adjoining cell list.
By technique scheme of the present invention, can realize the Automatic Optimal of the network coverage, effectively save the required man power and material of the network optimization, reduce the network O﹠M cost, effectively remedied network planning adjacent area leak join, mismatching phenomenon, thereby the raising network performance reduces professional cutting off rate, improves user satisfaction; In addition, the control of operator be can also make things convenient for, network operation stability and high performance management of balance helped network optimization function.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the network coverage optimization process method of the inventive method embodiment;
Fig. 2 is the block diagram of the network coverage optimization process system of system according to the invention embodiment;
Fig. 3 is the network coverage optimization process system structured flowchart in actual applications of system according to the invention embodiment; And
Fig. 4 is the flow chart that the performed coverage optimization of the network coverage optimization process system of system according to the invention embodiment is handled.
Embodiment
Method embodiment
In the present embodiment, provide a kind of network coverage optimization process method.
As shown in Figure 1, network coverage optimization process method according to present embodiment comprises: step S102, collect and its local first relevant coverage optimization data and the second coverage optimization data relevant with other base station the base station, and whether carry out coverage optimization in this locality according to the predetermined decision rule judgment, be judged as under the situation that is, execution in step S104, otherwise execution in step S106 and step S108; Step S104, the base station is adjusted according to the first predetermined coverage optimization rule; Step S106, the first coverage optimization data and the second coverage optimization data are handled report management node, management node is determined to adjust the result according to its local configuration data, the first coverage optimization data, the second coverage optimization data and the second predetermined coverage optimization rule, and will adjust result notification base station and/or other base station; Step S108, base station and/or other base station adjust accordingly according to adjusting the result.
Wherein, in step S104 or step S108, the adjustment of carrying out comprise following one of at least: adjust aerial angle, adjust transmitting power, adjust the adjoining relation of sub-district.
In addition, the above-mentioned first coverage optimization data can comprise following one of at least: subscriber equipment measurement report, sub-district cutting off rate Counter Value, BTS management configuration data, cell load level.The above-mentioned first coverage optimization data can comprise following one of at least: toggle count device value between inter base station interference measurement report, base station.
In the middle of practical application, the coverage optimization related data of collecting in the base station comprises: terminal survey report, wherein, comprise the Serving cell signal quality that terminal measures, and the Serving cell that can be this base station also can be the Serving cell of other base station; Interferometry report between the base station comprises the minizone up-downgoing and disturbs indication; The performance of handoffs counter that local service sub-district, base station is relevant wherein comprises the switching times relevant with this base station services sub-district, handoff failure number of times, handoff failure reason etc.; Local service sub-district, base station call drop counter wherein comprises the professional number of dropped calls of this Serving cell, professional call drop reason etc.
Performed judgement is actually the base station and handles the relevant coverage optimization data in local service sub-district (promptly in above-mentioned steps S102, the above-mentioned first coverage optimization data), for example, judging the local service sub-district according to above statistics is because the covering disappearance that the radio signal quality difference causes can be carried out the coverage optimization parameter adjustment by pilot power, change antenna tilt and other covering relevant parameters that increases this Serving cell in step S104.
In addition, the local configuration data of above-mentioned management node can comprise: the identifier of the base station that management node is managed, geographical position, neighbouring relations, and the cell identifier in each base station of managing, coverage and adjoining cell list.
System embodiment
In the present embodiment, provide a kind of network coverage optimization process system.
As shown in Figure 2, network coverage optimization process system according to present embodiment comprises: base station 202, be used to collect and its local first relevant coverage optimization data and the second coverage optimization data relevant with other base station, and whether carry out coverage optimization in this locality according to the predetermined decision rule judgment, be judged as under the situation that is, the first predetermined coverage optimization rule according to its this locality is adjusted, otherwise the first coverage optimization data and the second coverage optimization data are reported management node 204, and adjust accordingly according to adjustment result from management node 204; Management node 204 is used for determining to adjust the result according to its local configuration data, the first coverage optimization data, the second coverage optimization data and the second local predetermined coverage optimization rule, and will adjusts result notification base station and/or other base station.
Wherein, the adjustment carried out of base station comprise following one of at least: adjust aerial angle, adjust transmitting power, adjust the adjoining relation of sub-district.
In addition, the above-mentioned first coverage optimization data can comprise following one of at least: subscriber equipment measurement report, sub-district cutting off rate Counter Value, BTS management configuration data, cell load level.The above-mentioned first coverage optimization data can comprise following one of at least: toggle count device value between inter base station interference measurement report, base station.
In addition, the local configuration data of above-mentioned management node can comprise: the identifier of the base station that management node is managed, geographical position, neighbouring relations, and the cell identifier in each base station of managing, coverage and adjoining cell list.
Preferably, the coverage optimization of operator's control for convenience function, management node can be provided with the coverage optimization functional switch, if and only if when being set to out, and notifies the base station with coverage optimization function open command, only under the situation that the coverage optimization function is opened, just carry out above-mentioned implementation step, similarly, and if only if when being set to close, and notifies the base station with the shutdown command of coverage optimization function.
In the middle of practical application, the structure of said system can be as shown in Figure 3.As can be seen from Figure 3, comprise terminal, base station (base station 1, base station 2 and base station 3) and management node in this system.The coverage optimization related data can be by the terminal to report mode, transmit by the inter-base station interface transfer mode and by management node and inter-base station interface transfer mode.In the LTE system, above-mentioned management node can be upper layer network bookkeeping backstage, base station.
The realization scene of network coverage optimization in the LTE system can be divided into following two kinds of situations:
(1) cover disappearance optimization, for example, the unusual or following electricity of base station from home causes the network coverage discontinuous;
(2) cover overlapping optimization, for example newly-increased base station or newly-built sub-district cause the network coverage overlapping, cause presence of intercell interference, the waste Internet resources.
As shown in Figure 4, in system shown in Figure 3, performed processing may further comprise the steps:
Step 1: the local coverage optimization related data relevant with other base station services sub-district collected and handled in the base station, and report management node;
Step 2: management node is responsible for coverage optimization related data and the local configuration data that comprehensive each base station reports, and carries out the coverage optimization judgement according to the optimized Algorithm that sets in advance;
Step 3 is being judged under the situation about need adjust, the result who obtains adjusting according to predetermined rule, and should adjust result notification to the base station; For example, in situation (1), judging in the base station 1 Serving cell A according to above statistics is because to leak aglucon station 2 Serving cell B be that the adjacent area causes the handover failure rate height, service disconnection can be carried out the coverage optimization adjustment with the abutting subdistrict that base station 2 Serving cell B are configured to Serving cell A by informing base station 1.Judging according to above statistics such as situation 2 again is because sub-district A and sub-district B disturb the excessive wireless quality that causes poor, can carry out sub-district coverage optimization parameter adjustment by pilot power, change antenna tilt and other covering relevant parameters of adjusting Serving cell A and sub-district B.After coverage optimization being adjusted the relevant base station of result notification, execution in step 4;
Step 4: the base station is carried out corresponding parameter adjustment and is handled according to the adjustment result notification of receiving, for example, for situation (1), base station 2 Serving cell B can be configured to the abutting subdistrict of Serving cell A; For situation 2, the pilot transmit power of Serving cell A can be reduced.
In sum, by means of technical scheme of the present invention, can realize the Automatic Optimal of the network coverage, effectively save the required man power and material of the network optimization, reduce the network O﹠M cost, simultaneously at the network dynamic change, can effectively remedy network planning adjacent area leak join, mismatching phenomenon, the big situation of change of network environment that base station from home is existed effectively covers compensation and optimizes simultaneously, improves network performance, reduce professional cutting off rate, improve user satisfaction.In addition, the present invention has considered that network management system to covering the controlled function of Automatic Optimal, makes things convenient for the control of operator to network optimization function, helps network operation stability and high performance management of balance.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. a network coverage optimization process method is characterized in that, comprising:
Step S102, collect and its local first relevant coverage optimization data and the second coverage optimization data relevant with other base station the base station, and whether carry out coverage optimization in this locality according to the predetermined decision rule judgment, be judged as under the situation that is, execution in step S104, otherwise execution in step S106 and step S108;
Described step S104, described base station is adjusted according to the first predetermined coverage optimization rule;
Described step S106, described base station is handled the described first coverage optimization data and the described second coverage optimization data and is reported management node, described management node is determined to adjust the result according to its local configuration data, the described first coverage optimization data, the described second coverage optimization data and the second predetermined coverage optimization rule, and with the described base station of described adjustment result notification and/or described other base station;
Described step S108, described base station and/or described other base station adjust accordingly according to described adjustment result.
2. method according to claim 1 is characterized in that, in described step S104 or described step S108, the described adjustment of carrying out comprise following one of at least: adjust aerial angle, adjust transmitting power, adjust the adjoining relation of sub-district.
3. method according to claim 1 is characterized in that, the described first coverage optimization data comprise following one of at least: subscriber equipment measurement report, sub-district cutting off rate Counter Value, BTS management configuration data, cell load level.
4. method according to claim 1 is characterized in that, the described first coverage optimization data comprise following one of at least: toggle count device value between inter base station interference measurement report, base station.
5. method according to claim 1, it is characterized in that, the local configuration data of described management node comprises: the identifier of the base station that described management node is managed, geographical position, neighbouring relations, and the cell identifier in each base station of managing, coverage and adjoining cell list.
6. a network coverage optimization process system is characterized in that, comprising:
The base station, be used to collect and its local first relevant coverage optimization data and the second coverage optimization data relevant with other base station, and whether carry out coverage optimization in this locality according to the predetermined decision rule judgment, be judged as under the situation that is, the first predetermined coverage optimization rule according to its this locality is adjusted, otherwise described first coverage optimization data and the described second coverage optimization data are reported management node, and adjust accordingly according to adjustment result from described management node;
Described management node, be used for determining to adjust the result according to its local configuration data, the described first coverage optimization data, the described second coverage optimization data and the second local predetermined coverage optimization rule, and with the described base station of described adjustment result notification and/or described other base station.
7. system according to claim 6 is characterized in that, the described adjustment that carry out described base station comprise following one of at least: adjust aerial angle, adjust transmitting power, adjust the adjoining relation of sub-district.
8. system according to claim 6 is characterized in that, the described first coverage optimization data comprise following one of at least: subscriber equipment measurement report, sub-district cutting off rate Counter Value, BTS management configuration data, cell load level.
9. system according to claim 6 is characterized in that, the described first coverage optimization data comprise following one of at least: toggle count device value between inter base station interference measurement report, base station.
10. system according to claim 6, it is characterized in that, the local configuration data of described management node comprises: the identifier of the base station that described management node is managed, geographical position, neighbouring relations, and the cell identifier in each base station of managing, coverage and adjoining cell list.
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WO2016091171A1 (en) * 2014-12-09 2016-06-16 Huawei Technologies Co., Ltd. Method and apparatus for optimizing cell specific antenna configuration parameters
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US9578530B2 (en) 2014-12-09 2017-02-21 Futurewei Technologies, Inc. Method and apparatus for determining cell states to adjust antenna configuration parameters
US10327159B2 (en) 2014-12-09 2019-06-18 Futurewei Technologies, Inc. Autonomous, closed-loop and adaptive simulated annealing based machine learning approach for intelligent analytics-assisted self-organizing-networks (SONs)
US10382979B2 (en) 2014-12-09 2019-08-13 Futurewei Technologies, Inc. Self-learning, adaptive approach for intelligent analytics-assisted self-organizing-networks (SONs)
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CN108271164A (en) * 2016-12-31 2018-07-10 中国移动通信集团河北有限公司 LTE neighbor cell optimizing methods and device
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