CN101594681A - A kind of method that realizes the self-optimizing of LTE system - Google Patents
A kind of method that realizes the self-optimizing of LTE system Download PDFInfo
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Abstract
The invention discloses the method for a kind of LTE of realization (Long Term Evolution) system's self-optimizing, relate to mobile communication system.In the inventive method, after the base station sent to the base station that is adjacent with the state information of local service sub-district, described adjacent base station was according to this state information updating local information; Described adjacent base station carries out network self-organization and handles according to described lastest imformation.Technical solution of the present invention is carried out the Automatic Optimal management to Neighboring Cell List, making switch decision can make full use of the adjacent area state information is that terminal is selected suitable Target cell, improved the handover success rate of this network, and, the present invention has also realized the network coverage and capacity optimization judgement, has finally improved network performance.
Description
Technical field
The present invention relates to mobile communication system, more particularly, the present invention relates to the method for a kind of LTE of realization (LongTerm Evolution) system's self-optimizing.
Background technology
3G Long Term Evolution plan LTE (Long Term Evolution) network is formed the network flattening by E-UTRAN (Evolved UTRAN) base station eNB (Evolved NodeB) and evolution packet switching center EPC (Evolved Packet Core).Wherein EUTRAN comprises the set of the eNB that is connected by the S1 interface with EPC, can connect by X2 between the eNB, and S1, X2 are logic interfacing.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.
A lot of work need be done in order to reduce operation cost and the maintenance cost in the LTE system by operator when setting up and runing a network, for example plan, dispose, optimize, calculating, adjustment, test, guard against false, minimizing failure, self-recovery etc.And for the user, then need to simplify the use flow process, for example the user is in the use to Home NodeB equipment, wish that it is a PnP device, promptly this equipment can obtain configuration operation automatically once powering on, the trend that this shows next generation mobile networks must be self-configuring, self-optimizing, self adaptation, and human factor will be more and more littler to the influence of network.Thereby proposed the self-organizing network notion, described self-organizing network comprises self-configuring and self-optimizing two aspects.And at present in 3GPP 36.423 agreements, it is perfect not enough that the self-optimizing of self-organizing network is handled, and will produce neighbor cell like this and cover unreasonable and problem such as waste resource consumption, therefore need further improve the self-optimizing of self-organizing network.
Summary of the invention
Technical problem to be solved by this invention is, the method for a kind of LTE of realization system self-optimizing is provided.
In order to address the above problem, the invention discloses the method for a kind of 3G of realization Long Term Evolution plan LTE system self-optimizing, in this method, after the base station sent to the base station that is adjacent with the state information of local service sub-district, described adjacent base station was according to this state information updating local information;
Described adjacent base station carries out network self-organization and handles according to described lastest imformation.
Further, said method can be divided into following steps:
(1) after the base station learns that the state of one or several sub-districts in the local service sub-district changes, this cell status information is sent to adjacent base station by X2 interface message;
(2) after described adjacent base station is received above-mentioned message, therefrom obtain cell status information, and according to this information updating local information;
(3) described adjacent base station carries out network self-organization and handles according to updated information.
Further, said method also can be divided into following steps:
(A) described base station regularly sends the X2 interface message of carrying the local service cell status information to described adjacent base station;
(B) after described adjacent base station is received above-mentioned message, therefrom obtain cell status information, and according to this information updating local information;
(C) described adjacent base station carries out network self-organization and handles according to updated information.
Further, said method can also be divided into following steps:
(a) in setting up the process of X2 interface, the X2 that the local service cell status information is carried to described adjacent base station transmission in described base station sets up request message or X2 sets up response message;
(b) after described adjacent base station is received above-mentioned message, therefrom obtain cell status information, and according to this information updating local information;
(c) described adjacent base station carries out network self-organization and handles according to lastest imformation.
Wherein, described X2 interface message is X2 interface configuration update message or resource status report.
Described Serving cell state is an operate as normal, inaccessible or inaccessible.
Described local information is local Neighboring Cell List.
Can carry out the Automatic Optimal management to Neighboring Cell List by technical solution of the present invention, thereby making switch decision can make full use of the adjacent area state information is that terminal is selected suitable Target cell, improved the handover success rate of this network, and, the present invention has also realized the network coverage and capacity optimization judgement, has finally improved network performance.
Description of drawings
Fig. 1 is the flow chart that present embodiment is realized the self-optimizing of LTE system.
Embodiment
Main design of the present invention is, because the Neighboring Cell List Automatic Optimal and the network coverage and capacity optimization are two very important contents of self-optimizing, when therefore the attribute of Serving cell changes, the base station is necessary to notify adjacent base station to upgrade the information of this sub-district, help the maintenance optimization of base station like this to local Neighboring Cell List, and can realize the sub-district coverage optimization by the transmission of this information, thereby rationally utilize Internet resources.
Below in conjunction with the drawings and the specific embodiments technical solution of the present invention is described in further detail.
The process of LTE system realization self-optimizing may further comprise the steps as shown in Figure 1:
After step 1:eNB1 learns that the state of one or several sub-districts in the local service sub-district changes, by X2 interface message this cell status information is sent to adjacent eNB2, wherein, the state of sub-district can be divided into operate as normal, inaccessible and inaccessible in the present embodiment;
In this step, eNB1 can utilize X2 interface configuration update message or resource status report, as service cell updating information, cell load lastest imformation etc., carries cell status information; ENB1 also can set up in the process of X2 interface with eNB2, set up the state information of expansion service sub-district on the basis of various information of the Serving cell that request message comprises at X2, eNB2 also can set up the state information of carrying the eNB2 Serving cell in the response message at the X2 that returns simultaneously.Wherein, existing X2 sets up request and X2, and to set up the information of the Serving cell that response message comprises as shown in table 1, and in the present embodiment, and the information list of state information that has increased Serving cell newly is as shown in table 2.
In other embodiments, eNB1 also can regularly send the X2 interface message of the cell status information that carries eNB1 to adjacent eNB2; In addition, in other embodiments, the Serving cell state can be set according to demand, is not limited to operate as normal, inaccessible and inaccessible these three kinds of states, for example cell status can be divided into operate as normal or inaccessible two kinds, also can increase a kind of idle condition or the like.
Table 1, request of X2 foundation at present and X2 set up the information list of Serving cell in the response message
| The cell title | There is situation | Scope |
| Cell physical address | M | 0～510 |
| Sub-district ID | M | |
| TAI | M | |
| Broadcasting PLMN ID tabulation | M | 1 to maximum broadcasting PLMN number |
| Frequency | M |
Table 2, X2 foundation request and X2 set up service cell information tabulation in the response message in the present embodiment
| The cell title | There is situation | Scope |
| Cell physical address | M | 0～510 |
| Sub-district ID | M | |
| Cell status | M | Operate as normal, inaccessible or inaccessible |
| TAI | M | |
| Broadcasting PLMN ID tabulation | M | 1 to maximum broadcasting PLMN number |
| Frequency | M |
Step 2:eNB2 therefrom obtains cell status information after receiving above-mentioned X2 interface message, and this state information is kept at this locality, utilizes this state information updating local information then, as local Neighboring Cell List;
In this step, if there is not the Serving cell of corresponding eNB1 in the Neighboring Cell List of eNB2, then eNB2 creates the data entries of this Serving cell according to the cell status information that obtains; If eNB2 finds the Serving cell of corresponding eNB1 from this tabulation, then upgrade the state of this Serving cell according to the cell status information that obtains;
Step 3:eNB2 is after obtaining the state information of Serving cell by above-mentioned steps 1,2, carry out in the process of maintenance optimization in real time to local information (being Neighboring Cell List in the present embodiment), eNB2 can utilize the adjacent area list information of renewal that the LTE system is carried out self-optimizing and handle, as switch decision, and current network covered and the judgement optimization of capacity etc.
The multiple situation that comprises is handled in above-mentioned self-optimizing, for example because the base station is unusual, when sub-district deletion or sub-district obturation cause covering disappearance, eNB2 can adjust the Neighboring Cell List of the sub-district adjacent with this sub-district according to the corresponding district state information that receives, and, reach the effect of network coverage compensation such as measures such as increasing pilot power, change aerial angle height by covering and capacity parameter adjustment to the sub-district adjacent with this sub-district; And for example during the newly-built sub-district of eNB1, eNB2 is according to the information that receives corresponding newly-increased sub-district operate as normal, can adjust the Neighboring Cell List of local service sub-district, and, on the basis that guarantees the network coverage and capacity, reduce the consumption of resource by covering and capacity parameter adjustment to the sub-district adjacent with newly-increased sub-district.
In other embodiments, can obtain the state information of the other side's Serving cell between several adjacent base stations mutually, and by this state information updating Neighboring Cell List separately.
From the foregoing description as can be seen, technical solution of the present invention is notified adjacent adjacent area with the cell status information of Serving cell in real time, can be used for the Automatic Optimal management of Neighboring Cell List, making switch decision can make full use of the adjacent area state information is that terminal is selected suitable Target cell, thereby improved the handover success rate of this network, also can be used for simultaneously the network coverage and capacity optimization judgement, finally improve network performance.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art are when making various corresponding changes and distortion according to the present invention, and these change and be out of shape the protection range that all should belong to the appended claim of the present invention accordingly.
Claims (7)
1, a kind of method that realizes the self-optimizing of 3G Long Term Evolution plan LTE system is characterized in that,
After the base station sent to the base station that is adjacent with the state information of local service sub-district, described adjacent base station was according to this state information updating local information;
Described adjacent base station carries out network self-organization and handles according to described lastest imformation.
2, the method for claim 1 is characterized in that, this method is divided into following steps:
A: the base station sends to adjacent base station by X2 interface message with this cell status information after learning that the state of one or several sub-districts in the local service sub-district changes;
B: after described adjacent base station is received above-mentioned message, therefrom obtain cell status information, and according to this information updating local information;
C: described adjacent base station carries out network self-organization and handles according to updated information.
3, the method for claim 1 is characterized in that, this method is divided into following steps:
A: described base station regularly sends the X2 interface message of carrying the local service cell status information to described adjacent base station;
B: after described adjacent base station is received above-mentioned message, therefrom obtain cell status information, and according to this information updating local information;
C: described adjacent base station carries out network self-organization and handles according to updated information.
4, the method for claim 1 is characterized in that, this method is divided into following steps:
A: in setting up the process of X2 interface, the X2 that the local service cell status information is carried to described adjacent base station transmission in described base station sets up request message or X2 sets up response message;
B: after described adjacent base station is received above-mentioned message, therefrom obtain cell status information, and according to this information updating local information;
C: described adjacent base station carries out network self-organization and handles according to lastest imformation.
5, as claim 2 or 3 described methods, it is characterized in that,
Described X2 interface message is X2 interface configuration update message or resource status report.
6, as each described method of claim 1 to 4, it is characterized in that,
Described Serving cell state is an operate as normal, inaccessible or inaccessible.
7, as each described method of claim 1 to 4, it is characterized in that,
Described local information is local Neighboring Cell List.
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| CN101784135A (en) * | 2009-01-19 | 2010-07-21 | 中兴通讯股份有限公司 | Method and system for transmitting cell mobility state information in LTE (Long Term Evolution) |
| WO2010148801A1 (en) * | 2009-12-30 | 2010-12-29 | 中兴通讯股份有限公司 | Method and system for mobility parameter negotiation between base stations |
| CN101964985A (en) * | 2010-09-29 | 2011-02-02 | 中国科学院声学研究所 | Coverage and capacity self-optimization device of self-organization network in LTE/LTE-A and method thereof |
| CN102209338A (en) * | 2011-06-10 | 2011-10-05 | 北京邮电大学 | Switching self-optimizing method for mobile communication network |
| CN102264084A (en) * | 2010-05-26 | 2011-11-30 | 中兴通讯股份有限公司 | Methods and device for optimizing coverage by combining multiple base stations |
| CN103517320A (en) * | 2012-06-21 | 2014-01-15 | 中兴通讯股份有限公司 | Cognitive radio system neighbor relation, base station and control method of neighbor relation |
| CN103716875A (en) * | 2013-12-31 | 2014-04-09 | 中电科航空电子有限公司 | Method, device and wireless tuning system for transmitting Cross-Talk data synchronously |
| CN103856991A (en) * | 2012-11-29 | 2014-06-11 | 中兴通讯股份有限公司 | Method and device for maintaining neighbor cell information of mobile relay |
| CN103945423A (en) * | 2013-01-21 | 2014-07-23 | 京信通信系统（中国）有限公司 | Method for optimizing neighbor cell list of base station and base station |
| WO2022032513A1 (en) * | 2020-08-12 | 2022-02-17 | Oppo广东移动通信有限公司 | Wireless communication method and device |
| CN114363928A (en) * | 2021-12-27 | 2022-04-15 | 浪潮通信技术有限公司 | XN interface interaction method and system |
| CN114423017A (en) * | 2015-08-12 | 2022-04-29 | 北京三星通信技术研究有限公司 | Self-configuration and self-optimization method, system and device |
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| CN101784135A (en) * | 2009-01-19 | 2010-07-21 | 中兴通讯股份有限公司 | Method and system for transmitting cell mobility state information in LTE (Long Term Evolution) |
| WO2010148801A1 (en) * | 2009-12-30 | 2010-12-29 | 中兴通讯股份有限公司 | Method and system for mobility parameter negotiation between base stations |
| US8504011B2 (en) | 2009-12-30 | 2013-08-06 | Zte Corporation | Method and system for mobility parameter negotiation between base stations |
| CN102264084B (en) * | 2010-05-26 | 2016-08-03 | 中兴通讯股份有限公司 | A kind of multiple base stations united method and device carrying out coverage optimization |
| CN102264084A (en) * | 2010-05-26 | 2011-11-30 | 中兴通讯股份有限公司 | Methods and device for optimizing coverage by combining multiple base stations |
| WO2011147282A1 (en) * | 2010-05-26 | 2011-12-01 | 刘建 | Method and apparatus for multi-base station implementing covering optimization jointly |
| CN101964985A (en) * | 2010-09-29 | 2011-02-02 | 中国科学院声学研究所 | Coverage and capacity self-optimization device of self-organization network in LTE/LTE-A and method thereof |
| CN101964985B (en) * | 2010-09-29 | 2013-11-13 | 中国科学院声学研究所 | Coverage and capacity self-optimization device of self-organization network in LTE/LTE-A and method thereof |
| CN102209338B (en) * | 2011-06-10 | 2014-12-10 | 北京邮电大学 | Switching self-optimizing method for mobile communication network |
| CN102209338A (en) * | 2011-06-10 | 2011-10-05 | 北京邮电大学 | Switching self-optimizing method for mobile communication network |
| CN103517320A (en) * | 2012-06-21 | 2014-01-15 | 中兴通讯股份有限公司 | Cognitive radio system neighbor relation, base station and control method of neighbor relation |
| CN103856991A (en) * | 2012-11-29 | 2014-06-11 | 中兴通讯股份有限公司 | Method and device for maintaining neighbor cell information of mobile relay |
| CN103945423A (en) * | 2013-01-21 | 2014-07-23 | 京信通信系统（中国）有限公司 | Method for optimizing neighbor cell list of base station and base station |
| CN103716875A (en) * | 2013-12-31 | 2014-04-09 | 中电科航空电子有限公司 | Method, device and wireless tuning system for transmitting Cross-Talk data synchronously |
| CN103716875B (en) * | 2013-12-31 | 2017-06-06 | 中电科航空电子有限公司 | Method, device and radio tuning system for synchronous transfer Cross Talk data |
| CN114423017A (en) * | 2015-08-12 | 2022-04-29 | 北京三星通信技术研究有限公司 | Self-configuration and self-optimization method, system and device |
| CN114423017B (en) * | 2015-08-12 | 2024-04-05 | 北京三星通信技术研究有限公司 | Self-configuration self-optimization method, system and device |
| WO2022032513A1 (en) * | 2020-08-12 | 2022-02-17 | Oppo广东移动通信有限公司 | Wireless communication method and device |
| CN114363928A (en) * | 2021-12-27 | 2022-04-15 | 浪潮通信技术有限公司 | XN interface interaction method and system |
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