CN101557626B - Self optimizing method of neighborhood list - Google Patents
Self optimizing method of neighborhood list Download PDFInfo
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- CN101557626B CN101557626B CN2008100897539A CN200810089753A CN101557626B CN 101557626 B CN101557626 B CN 101557626B CN 2008100897539 A CN2008100897539 A CN 2008100897539A CN 200810089753 A CN200810089753 A CN 200810089753A CN 101557626 B CN101557626 B CN 101557626B
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Abstract
The invention discloses a self optimizing method of a neighborhood list. The method comprises the following steps: the current position and neighborhood signals of a mobile terminal are obtained at a network terminal; the current position and the neighborhood signals of each mobile terminal are compared at the network terminal, redundant information is eliminated, and all detection records are obtained; neighborhood signals with signal strength which is smaller than a preset threshold in the detection records are eliminated to obtain a comparison record; the comparison record is compared with a record in the neighborhood list at the network terminal, and information of the neighborhood list is updated according to the comparison result. By adopting the method, the accuracy of the neighborhood configuration can be improved.
Description
Technical field
The present invention relates to wireless communication technology, relate in particular to a kind of self optimizing method of neighborhood list.
Background technology
The radio-frequency power of base station is generally limited within certain sub-district, when leaving a sub-district, portable terminal enters the another one sub-district, this portable terminal receive the signal of original sub-district inevitable more and more a little less than, and its received signal that enters the sub-district will be more and more stronger just also.In order to keep the communications of Mobile Terminals quality, must switch to the stronger base station of signal that newly enters, the notion of switching in the mobile communication system that Here it is by original base station to continuing of portable terminal.
And the purpose of adjacent section planning guarantees can in time switch at the portable terminal of sub-district service boundaries the adjacent area of signal the best just, thereby guarantees speech quality.
Neighboring Cell List is defined in adjacent section planning.At present, adjacent section planning general earlier with the sub-district of direct neighbor on the geographical position as the adjacent area, after network opening, again by means such as drive tests, concrete adjacent area, base station is adjusted, the adjacent area that leakage is done is filled, unnecessary adjacent area deletion, as shown in Figure 1, with on the geographical position with the sub-district 111 of sub-district 222 direct neighbors and sub-district 333 as the adjacent area, after network opening, when portable terminal is positioned at the A position, portable terminal does not detect the signal of adjacent area 111, then deletes adjacent area 111; When portable terminal is positioned at the B position, then need delete adjacent area 333.
But, existing self optimizing method of neighborhood list at the sub-district, before network opening, need the adjacent area to optimize personnel according to factor human configuration adjacent areas such as the geographical position are adjacent, workload is big and dispose inaccurate, wider by cell range, thereby cause the surveying work amount of optimizing neighbor list, portable terminal of subsequent network end big, and neighbor cell configuration is inaccurate.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of self optimizing method of neighborhood list at mobile terminal locations, has improved the accuracy of neighbor cell configuration.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of self optimizing method of neighborhood list, this method may further comprise the steps:
Network terminal obtains the current location and the neighboring area signal of portable terminal;
Network terminal is the current location and the neighboring area signal of each portable terminal relatively, rejects redundant information, obtains each detection record; And remove that signal strength signal intensity obtains relatively record less than the neighboring area signal of predefined thresholding in the described detection record;
Network terminal with each relatively write down with Neighboring Cell List in record relatively, upgrade adjacent area list information according to comparative result.
Further, described network terminal with each relatively write down with Neighboring Cell List in record relatively, comprise after upgrading adjacent area list information according to comparative result: the record that exceeds the time of preestablishing in the network terminal deletion Neighboring Cell List.
Further, the current location and the neighboring area signal of network terminal acquisition portable terminal comprise:
The current location of network terminal localisation of mobile terminals or order portable terminal location self current location also report to network terminal;
The described mobile terminal to search neighboring area signal of network terminal order also reports to network terminal.
Further, network terminal is the current location and the neighboring area signal of each portable terminal relatively, rejects redundant information, obtains each detection record and comprises:
Compare the current location of each portable terminal and the neighboring area signal that is searched,
If in described each portable terminal, the neighboring area signal that has the current location of two or many portable terminals and searched overlaps fully, then only will be described one current location and the neighboring area signal that is searched in two or many portable terminals respectively as the position and the neighboring area signal of a detection record;
If in described each portable terminal, exist the current location of two or many portable terminals to overlap fully, but the neighboring area signal difference that is searched, then get one current location in described two or many portable terminals as the position of a detection record, and described two or neighboring area signal that many portable terminals searched are merged the neighboring area signal of back as this detection record;
If in described each portable terminal, exist the current location of two or many portable terminals to partially overlap, then carry out following steps:
A, respectively the current location of each in described two or many portable terminals is removed intersection,
B, the current location of every portable terminal is removed the position of the position of gained after the intersection as a detection record, with neighboring area signal that this portable terminal searched neighboring area signal as this detection record; And execution in step:
With the position of intersection, after the neighboring area signal that the pairing portable terminal of current location that overlaps into this intersection is searched merges, as the neighboring area signal of this detection record as a detection record;
All the other described each portable terminals, every current location is as the position of a detection record, and the neighboring area signal that this searched is as the neighboring area signal of this detection record.
Further, described network terminal with each relatively write down with Neighboring Cell List in record relatively, upgrade adjacent area list information according to comparative result and comprise:
With each relatively write down with Neighboring Cell List in each record relatively,
If relatively position identical with the position of certain record in the Neighboring Cell List or relatively record, Ji Lu position comprises the position of certain record in the Neighboring Cell List,, and will relatively write down the described Neighboring Cell List of adding then by this record of deletion in the Neighboring Cell List;
If relatively the position of certain record partially overlaps in Ji Lu position and the Neighboring Cell List, then the position of this record in the Neighboring Cell List is removed intersection, kept the adjacent area of this record constant, and will relatively write down in the described Neighboring Cell List of adding;
If comparative result is all different with above-mentioned two results, then will relatively write down the described Neighboring Cell List of adding.
A kind of self optimizing method of neighborhood list provided by the present invention has following advantage and characteristics:
1, the corresponding relation that is recorded as position-adjacent area in the Neighboring Cell List of the present invention, therefore, compare for mobile terminal configuration at the adjacent area of this portable terminal sub-district of living in prior art, the present invention gives the adjacent area of mobile terminal configuration at this portable terminal current location, improved the accuracy of neighbor cell configuration, make portable terminal can in time switch to the adjacent area of signal the best, thereby guaranteed speech quality;
2, before network opening, do not need to dispose any neighboring BS information, behind network opening, current location and the neighboring area signal of network terminal by obtaining portable terminal, and handle the back and add Neighboring Cell List to current area, accumulate position-neighboring BS information, reduced adjacent area optimization personnel's workload.
Description of drawings
Fig. 1 is the drive test process schematic diagram that present adjacent area is optimized;
Fig. 2 is the realization flow figure of a kind of self optimizing method of neighborhood list of the present invention.
Embodiment
The realization flow of a kind of self optimizing method of neighborhood list of the present invention may further comprise the steps as shown in Figure 2:
Step 201: network terminal obtains the current location and the neighboring area signal of portable terminal;
Concrete preparation method is:
Network terminal is located the current location of described portable terminal or is ordered described portable terminal location self current location and report to network terminal;
The described mobile terminal to search neighboring area signal of network terminal order also reports to network terminal.
Described network terminal obtains the current location of each portable terminal, can locate self current location and send it to network terminal by portable terminal, also can be by the current location of the direct localisation of mobile terminals of network terminal;
Wherein, concrete localization method, can use based on global positioning system (GPS, Global PositioningSystem) localization method, based on observe to arrive time difference (OTDOA, Observed Time Difference OfArrival) localization method, based on the field intensity localization method or based on strengthening observation time difference (E-OTD) localization method etc.
Step 202: network terminal is the current location and the neighboring area signal of each portable terminal relatively, rejects redundant information, obtains each detection record;
Concrete elimination method is:
Compare the current location of each portable terminal and the neighboring area signal that is searched,
If in described each portable terminal, the neighboring area signal that has the current location of two or many portable terminals and searched overlaps fully, then only will be described one current location and the neighboring area signal that is searched in two or many portable terminals respectively as the position and the neighboring area signal of a detection record;
If in described each portable terminal, exist the current location of two or many portable terminals to overlap fully, but the neighboring area signal difference that is searched, then get one current location in described two or many portable terminals as the position of a detection record, and described two or neighboring area signal that many portable terminals searched are merged the neighboring area signal of back as this detection record;
If in described each portable terminal, exist the current location of two or many portable terminals to partially overlap, then carry out following steps:
A, respectively the current location of each in described two or many portable terminals is removed intersection,
B, the current location of every portable terminal is removed the position of the position of gained after the intersection as a detection record, with neighboring area signal that this portable terminal searched neighboring area signal as this detection record; And execution in step:
With the position of intersection, after the neighboring area signal that the pairing portable terminal of current location that overlaps into this intersection is searched merges, as the neighboring area signal of this detection record as a detection record; All the other described each portable terminals, every current location is as the position of a detection record, and the neighboring area signal that this searched is as the neighboring area signal of this detection record.
Step 203: network terminal removes that signal strength signal intensity obtains relatively record less than the neighboring area signal of predefined thresholding in the described detection record.
Step 204: network terminal with each relatively write down with Neighboring Cell List in record relatively, upgrade adjacent area list information according to comparative result.
Concrete update method is:
With each relatively write down with Neighboring Cell List in each record relatively,
If relatively position identical with the position of certain record in the Neighboring Cell List or relatively record, Ji Lu position comprises the position of certain record in the Neighboring Cell List,, and will relatively write down the described Neighboring Cell List of adding then by this record of deletion in the Neighboring Cell List;
If relatively the position of certain record partially overlaps in Ji Lu position and the Neighboring Cell List, then the position of this record in the Neighboring Cell List is removed intersection, kept the adjacent area of this record constant, and will relatively write down in the described Neighboring Cell List of adding;
If comparative result is all different with above-mentioned two results, then will relatively write down the described Neighboring Cell List of adding.
When step 201～204 is upgraded record in the Neighboring Cell List, position in the Neighboring Cell List is not upgraded with the position record inequality or that do not overlap that relatively writes down, but network may add new sub-district at any time, abolishes former sub-district, change sub-district covering, sub-district fault etc., the covering of neighboring area signal can change thereupon, and after the covering of neighboring area signal changes, the record of Geng Xining can not reflect current actual adjacent area, therefore after step 204, also can comprise step 205: the record that exceeds the time of preestablishing in the network terminal deletion Neighboring Cell List.
The corresponding relation that is recorded as position-adjacent area in the Neighboring Cell List of the present invention, therefore, network terminal can be the adjacent area of mobile terminal configuration at this portable terminal current location according to Neighboring Cell List, has improved the accuracy of neighbor cell configuration.
When network terminal is the mobile terminal configuration adjacent area, if in Neighboring Cell List, do not search the record that the position comprises or be contained in the current location of this portable terminal, network terminal can be according to the adjacent area of the current location adjacent position of this portable terminal, adopt interpolating function to obtain estimated value, the gained estimated value is disposed to this portable terminal.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (5)
1. a self optimizing method of neighborhood list is characterized in that, this method may further comprise the steps:
Network terminal obtains the current location and the neighboring area signal of portable terminal;
Network terminal is the current location and the neighboring area signal of each portable terminal relatively, rejects redundant information, obtains each detection record; And remove that signal strength signal intensity obtains relatively record less than the neighboring area signal of predefined thresholding in the described detection record;
Network terminal with each relatively write down with Neighboring Cell List in record relatively, upgrade adjacent area list information according to comparative result.
2. self optimizing method of neighborhood list according to claim 1, it is characterized in that, described network terminal with each relatively write down with Neighboring Cell List in record relatively, comprise after upgrading adjacent area list information according to comparative result: the record that exceeds the time of preestablishing in the network terminal deletion Neighboring Cell List.
3. self optimizing method of neighborhood list according to claim 1 and 2 is characterized in that, current location and neighboring area signal that network terminal obtains portable terminal comprise:
The current location of network terminal localisation of mobile terminals or order portable terminal location self current location also report to network terminal;
The described mobile terminal to search neighboring area signal of network terminal order also reports to network terminal.
4. self optimizing method of neighborhood list according to claim 1 and 2 is characterized in that, network terminal is the current location and the neighboring area signal of each portable terminal relatively, rejects redundant information, obtains each detection record and comprises:
Compare the current location of each portable terminal and the neighboring area signal that is searched,
If in described each portable terminal, the neighboring area signal that has the current location of two or many portable terminals and searched overlaps fully, then only will be described one current location and the neighboring area signal that is searched in two or many portable terminals respectively as the position and the neighboring area signal of a detection record;
If in described each portable terminal, exist the current location of two or many portable terminals to overlap fully, but the neighboring area signal difference that is searched, then get one current location in described two or many portable terminals as the position of a detection record, and described two or neighboring area signal that many portable terminals searched are merged the neighboring area signal of back as this detection record;
If in described each portable terminal, exist the current location of two or many portable terminals to partially overlap, then carry out following steps:
A, respectively the current location of each in described two or many portable terminals is removed intersection,
B, the current location of every portable terminal is removed the position of the position of gained after the intersection as a detection record, with neighboring area signal that this portable terminal searched neighboring area signal as this detection record; And execution in step:
With the position of intersection, after the neighboring area signal that the pairing portable terminal of current location that overlaps into this intersection is searched merges, as the neighboring area signal of this detection record as a detection record;
All the other described each portable terminals, every current location is as the position of a detection record, and the neighboring area signal that this searched is as the neighboring area signal of this detection record.
5. self optimizing method of neighborhood list according to claim 1 and 2 is characterized in that, described network terminal with each relatively write down with Neighboring Cell List in record relatively, upgrade adjacent area list information according to comparative result and comprise:
With each relatively write down with Neighboring Cell List in each record relatively,
If relatively position identical with the position of certain record in the Neighboring Cell List or relatively record, Ji Lu position comprises the position of certain record in the Neighboring Cell List,, and will relatively write down the described Neighboring Cell List of adding then by this record of deletion in the Neighboring Cell List;
If relatively the position of certain record partially overlaps in Ji Lu position and the Neighboring Cell List, then intersection is removed in position that should record in the Neighboring Cell List, keep in the Neighboring Cell List should record the adjacent area constant, and will relatively write down and add in the described Neighboring Cell List;
If comparative result is all different with above-mentioned two results, then will relatively write down the described Neighboring Cell List of adding.
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| CN2008100897539A CN101557626B (en) | 2008-04-10 | 2008-04-10 | Self optimizing method of neighborhood list |
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| CN102300214B (en) * | 2010-06-28 | 2014-01-01 | 鼎桥通信技术有限公司 | Strong neighbor list generating method and device as well as channel selecting method and device |
| JP5664273B2 (en) * | 2011-01-21 | 2015-02-04 | ソニー株式会社 | Wireless communication device, program, and wireless communication system |
| CN102421120B (en) * | 2011-05-27 | 2014-07-02 | 展讯通信（上海）有限公司 | Multi-card multi-standby communication terminal and neighbor list maintaining method and device thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1219380C (en) * | 2002-01-24 | 2005-09-14 | 华为技术有限公司 | Method for automatic maintenance neighborlist in CDMA system |
| CN1713771A (en) * | 2004-06-22 | 2005-12-28 | 大唐移动通信设备有限公司 | Adjacent zone terminal monitoring method in mobile communicating system from network control |
| CN1913705A (en) * | 2006-08-16 | 2007-02-14 | 华为技术有限公司 | Method and system for improving positioning of mobile station and radio network controller |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1219380C (en) * | 2002-01-24 | 2005-09-14 | 华为技术有限公司 | Method for automatic maintenance neighborlist in CDMA system |
| CN1713771A (en) * | 2004-06-22 | 2005-12-28 | 大唐移动通信设备有限公司 | Adjacent zone terminal monitoring method in mobile communicating system from network control |
| CN1913705A (en) * | 2006-08-16 | 2007-02-14 | 华为技术有限公司 | Method and system for improving positioning of mobile station and radio network controller |
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