CN103167566A - Method and device for realizing terminal switching - Google Patents
Method and device for realizing terminal switching Download PDFInfo
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- CN103167566A CN103167566A CN2011104163856A CN201110416385A CN103167566A CN 103167566 A CN103167566 A CN 103167566A CN 2011104163856 A CN2011104163856 A CN 2011104163856A CN 201110416385 A CN201110416385 A CN 201110416385A CN 103167566 A CN103167566 A CN 103167566A
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Abstract
The invention discloses a method and a device for realizing terminal switching. The method comprises that after a service base station receives information, reported by a terminal, of adjacent cells, whether an adjacent-cell list contains configuration information of a target cell in the adjacent cells reported by the terminal is judged, if the configuration information is not contained, the configuration information of the target cell is inquired in the adjacent cell in the adjacent-cell list, and switching of the terminal is guided according to the inquired configuration information. According to the method, a method that an adjacent cell of a service cell is searched is used for expanding the switching target range of the service cell, a centralized type database is used for storing site information, antenna feeder information and cell configuration information and other information to realize calculation of the distance between the service cell and an adjacent cell reported by the terminal and calculation of antennal feeder relevance, normal terminal switch can be guaranteed under the conditions that a network is changed, existing sites are moved, the existing sites fail and the like, the number of adjacent cells can be effectively reduced, and only when a switching relation which is absolutely necessary is guaranteed preferentially, can the terminal be configured in the adjacent-cell list.
Description
Technical field
The present invention relates to radio communication handoff technique field, relate in particular to a kind of method and device of realizing that terminal is switched.
Background technology
In current wireless network, must can switch the adjacent area in the situation that the configuration of serving BS (residential quarter) side is correlated with.
This mode can only realize the switching of known (configuring) minizone on the one hand, and (changing and the website dilatation as website fault, website) can not in time react in the situation that network changes, and can cause the big ups and downs of network performance.
On the other hand, due to the software and hardware condition restriction, the number of configuring adjacent cell generally can be restricted, and can't adapt to like this trend of base station (residential quarter) miniaturization, plug and play.
Summary of the invention
The technical problem to be solved in the present invention is a kind of method and device of realizing that terminal is switched, can in the situation that the serving BS side does not configure the configuration information of Target cell, realize that terminal is to the switching of Target cell.
For solving the problems of the technologies described above, a kind of method that realizes that terminal is switched of the present invention comprises:
Serving BS is after the information of the neighbor cell that receives terminal to report, judge the configuration information of the Target cell in the neighbor cell that whether comprises described terminal to report in Neighboring Cell List, if do not comprise, the configuration information of the described Target cell of the inquiry of the neighbor cell in the described Neighboring Cell List, switch according to the described terminal of configuration information guiding that inquires.
Further, also comprise:
Described serving BS is in the information of a plurality of neighbor cells of described terminal to report, and, when not comprising the configuration information of described Target cell in described Neighboring Cell List, configuration information to the described Target cell of other neighbor cells inquiry except Target cell of described terminal to report, when not inquiring the configuration information of described Target cell, carry out the configuration information of the described described Target cell of neighbor cell inquiry in described Neighboring Cell List.
Further, also comprise:
Described serving BS is not when the neighbor cell from described Neighboring Cell List inquires the configuration information of described Target cell, information according to the Target cell in the information of the neighbor cell of described terminal to report, the residential quarter of mating in the back-end data library inquiry network, according to the residential quarter that inquires and the distance of self and antenna feeder correlation, select the optimum Match residential quarter, guide described terminal to switch to the optimum Match residential quarter.
Further, also comprise:
When described serving BS inquired the configuration information of a residential quarter at other neighbor cells except Target cell of the neighbor cell from described Neighboring Cell List or described terminal to report, guiding terminal switched to this residential quarter.
Further, also comprise:
When described serving BS inquires the configuration information of a plurality of residential quarters at other neighbor cells except Target cell of the neighbor cell from described Neighboring Cell List or described terminal to report, position and day feedforward information to the described a plurality of residential quarters of back-end data library inquiry, select the optimum Match residential quarter according to a plurality of residential quarters and the distance of self and antenna feeder correlation, guide described terminal to switch to the optimum Match residential quarter.
Further, a kind of device of realizing that terminal is switched comprises: information receiving unit, judging unit and switch unit, wherein:
Described information receiving unit is used for the information of the neighbor cell that receiving terminal reports;
Described judging unit after the information for the neighbor cell that receives terminal to report at described information receiving unit, judges the configuration information of the Target cell in the neighbor cell that whether comprises described terminal to report in Neighboring Cell List;
Described switch unit, when being used for the configuration information of the Target cell in described judgment unit judges Neighboring Cell List does not comprise neighbor cell, the configuration information of the described Target cell of neighbor cell inquiry in the described Neighboring Cell List switches according to the described terminal of configuration information guiding that inquires.
Further, described switch unit, also be used for the information at a plurality of neighbor cells of described terminal to report, and, when not comprising the configuration information of described Target cell in described Neighboring Cell List, to the configuration information of the described Target cell of other neighbor cells inquiry except Target cell of described terminal to report, when not inquiring the configuration information of described Target cell, carries out the configuration information that described neighbor cell in described Neighboring Cell List is inquired about described Target cell.
Further, described switch unit, also be used for when not inquiring the configuration information of described Target cell from the neighbor cell of described Neighboring Cell List, information according to the Target cell in the information of the neighbor cell of described terminal to report, the residential quarter of mating in the back-end data library inquiry network, according to the residential quarter that inquires and the distance of self and antenna feeder correlation, select the optimum Match residential quarter, guide described terminal to switch to the optimum Match residential quarter.
Further, described switch unit, concrete being used for when other neighbor cells except Target cell from the neighbor cell of described Neighboring Cell List or described terminal to report inquire the configuration information of a residential quarter, guiding terminal is to this residential quarter switching.
Further, described switch unit, concrete being used for when other neighbor cells except Target cell from the neighbor cell of described Neighboring Cell List or described terminal to report inquire the configuration information of a plurality of residential quarters, position and day feedforward information to the described a plurality of residential quarters of back-end data library inquiry, select the optimum Match residential quarter according to a plurality of residential quarters and the distance of self and antenna feeder correlation, guide described terminal to switch to the optimum Match residential quarter.
in sum, the present invention is by the switching target zone of the mode expansion service residential quarter of the adjacent area of search service residential quarter, employing centralized data base storage site position, the configuration information of it feedforward information and residential quarter etc., realize neighbor cell that computing terminal reports and distance and the antenna feeder correlation of Serving cell, can guarantee change to occur at network, existing website resettlement, in the situations such as existing website fault, the guarantee terminal can normally be switched, and, can effectively reduce the adjacent area number, the indispensable handoff relation of preferential assurance just is configured in Neighboring Cell List, can guide sporadic switching.
Description of drawings
Fig. 1 is the flow chart of realizing the method that terminal is switched of embodiment of the present invention;
Fig. 2 is the network topological diagram in embodiment of the present invention;
Fig. 3 is the Organization Chart of realizing the device that terminal is switched in embodiment of the present invention.
Embodiment
In present embodiment according to target BS (residential quarter) information of terminal to report, by the information sharing between base station (residential quarter) and geo-relevance coupling, realize in the situation that serving BS (residential quarter) does not configure Target cell can switch to this Target cell by indicating terminal yet.Terminal in present embodiment (mobile or fixed terminal) need to possess the ability of search unknown cell.
The changing method of the terminal of present embodiment is realized in the situation that do not configure the Target cell guiding terminal in serving BS and switch, after the information of terminal to report target BS, serving BS switches according to the Neighboring Cell List guiding of this base station (residential quarter), if the information of target BS not in the Neighboring Cell List of this base station, is switched by following dual mode guiding:
(1) base station in serving BS and Neighboring Cell List (base station of configuring adjacent cell relation) carries out information sharing, obtains the configuration information of target BS, and guiding terminal switches to target BS.
(2) serving BS is inquired about to background data base, selects most probable base station (residential quarter) guiding terminal to switch according to distance and antenna feeder correlation.
As shown in Figure 1, the changing method of the terminal of present embodiment comprises:
Step 101: the information of the neighbor cell that terminal searches to serving base stations report, the information of neighbor cell comprises frequency, cell ID (Cell Identity), PN (code sequence), scrambler or physical layer identifications (Physical Layer Identity, PCI) etc.;
Step 102: after serving BS received the information of neighbor cell of terminal to report, the neighbor cell that signal is the strongest judged as Target cell whether Target cell is present in Neighboring Cell List, and if so, guiding terminal is carried out and switched; Otherwise, execution in step 103;
Step 103: serving BS is according to the information of the neighbor cell of terminal to report, the configuration information of query aim residential quarter;
Serving BS is when the information of a plurality of neighbor cells of terminal to report, and when Target cell was not in Neighboring Cell List, other neighbor cells except Target cell that report to terminal sent Query Informations, the configuration information of query aim residential quarter.
Serving BS is in the information of a neighbor cell of terminal to report, perhaps, when other neighbor cells except Target cell that do not report from terminal inquired the configuration information of Target cell, all residential quarters in Neighboring Cell List sent Query Information, the configuration information of inquiry Target cell.Certainly, when the information of a plurality of neighbor cells of terminal to report, also can be directly all residential quarters in the Neighboring Cell List send Query Informations.
Step 104: serving BS receives Query Result, and UE switches according to the Query Result guiding.
If there is not the configuration information of Target cell in Query Result, serving BS is inquired about to background data base according to the information of Target cell, the residential quarter of mating in requester network, position and day feedforward information according to the residential quarter that inquires, calculate distance and antenna feeder correlation with the residential quarter that inquires, select optimum Match residential quarter guiding terminal to switch according to distance and antenna feeder correlation.For the LTE system, also can start at this moment ANR functional additive technique adjacent area and guiding terminal and switch.
Store position, day feedforward information and the configuration information of each base station in network in background data base, serving BS can be according to the distance between the position calculation base station of each base station, according to the antenna feeder correlation between sky feedforward information calculation base station.Serving BS can be according to distance priority when selecting the optimum Match residential quarter, and the antenna feeder correlation is preferential, also can adjust the distance to compute weighted with the antenna feeder correlation, according to operation result selection optimum Match residential quarter.
If only comprise the configuration information of a residential quarter in Query Result, that is: inquire a residential quarter with the information matches of Target cell, guiding terminal switches to this residential quarter.
If comprise the configuration information of a plurality of residential quarters in Query Result, that is: inquire the residential quarter of the information matches of a plurality of and Target cell, serving BS is respectively according to the information of a plurality of residential quarters, inquire about to background data base, according to the position that inquires and day feedforward information, distance and the antenna feeder correlation of calculating and a plurality of residential quarters, selection optimum Match residential quarter guiding terminal from the residential quarter of the information matches of a plurality of and Target cell switches according to distance and antenna feeder correlation.For the LTE system, also can start at this moment ANR functional additive technique adjacent area and guiding terminal and switch.
Use example 1:
As shown in Figure 2, base station A～E is the base station (residential quarter) of normal operation, when terminal resides at base station B at position F, the signal that searches base station E satisfies switching condition and reports base station B, but there is no the configuration information of base station E in the Neighboring Cell List of base station B, and base station B is to the every other base station of configuring adjacent cell relation, inquire about as base station A and D, if the configuration information of base station E is arranged in the Neighboring Cell List of base station A and D, pass to base station B, switched to base station E by base station B guiding terminal.
If all there is no the configuration information of base station E in the Neighboring Cell List of base station A and D, according to the information of terminal to report, retrieve in all base stations in network by background data base, the distance of the base station that calculating retrieves and base station B, antenna towards with relative height relation etc., the line correlation sequence of going forward side by side, select most possible base station, switched by base station B guiding terminal.
Use example 2:
As shown in Figure 2, base station A～E is the base station (residential quarter) of normal operation, when terminal resides at base station B at position F, search the signal of base station A and base station E, wherein, base station E is the preferred target (Target cell) of switching, but the configuration information that only has base station A in the Neighboring Cell List of base station B, the configuration information that there is no base station E, base station B inquires about to the base station A of configuring adjacent cell relation, if the configuration information of base station E is arranged in the Neighboring Cell List of base station A, pass to base station B, switched to base station E by base station B guiding terminal.
If there is no the configuration information of base station B in the Neighboring Cell List of base station A, base station B inquires about as base station C and base station D to the every other base station (residential quarter) of configuring adjacent cell relation, if the configuration information of base station E is arranged in base station C and base station D, pass to base station B, switched to base station E by base station B guiding terminal.
If all there is no the configuration information of base station B in the Neighboring Cell List of base station C and base station D, according to the information of terminal to report, retrieve in all base stations in network by background data base, the distance of the base station that calculating retrieves and base station B, antenna towards with relative height relation etc., the line correlation sequence of going forward side by side, select most possible base station, switched by base station B guiding terminal.
Use example 3:
As shown in Figure 2, base station A～E is the base station (residential quarter) of normal operation, when terminal resides at base station B at position F, the signal that searches base station E satisfies switching condition and reports base station B, but the configuration information that there is no base station E in the Neighboring Cell List of base station B, base station B inquires about as base station A and base station D to the every other base station of configuring adjacent cell relation.
If the E configuration information of (conforming to the information of terminal to report) in base station is arranged in the Neighboring Cell List of base station A, the C configuration information of (conforming to the information of terminal to report) in base station is arranged in the adjacent area of base station D, by the information of background data base according to base station E and base station C, the position of inquiry base station E and base station C and day feedforward information, the distance of calculation base station C and base station E and base station B, antenna towards with relative height relation etc., carry out relevance ranking, select most possible base station E to be switched by the B guiding terminal.
As shown in Figure 3, present embodiment also provides a kind of device of realizing that terminal is switched, comprising: information receiving unit, judging unit and switch unit, wherein:
Information receiving unit is used for the information of the neighbor cell that receiving terminal reports;
Judging unit after the information for the neighbor cell that receives terminal to report at information receiving unit, judges the configuration information of the Target cell in the neighbor cell that whether comprises terminal to report in Neighboring Cell List;
Switch unit, when being used for the configuration information of the Target cell in the judgment unit judges Neighboring Cell List does not comprise neighbor cell, the configuration information of the neighbor cell query aim residential quarter in the Neighboring Cell List switches according to the configuration information guiding terminal that inquires.
Switch unit, also be used for the information at a plurality of neighbor cells of terminal to report, and, when not comprising the configuration information of Target cell in Neighboring Cell List, configuration information to other neighbor cell query aims residential quarter except Target cell of terminal to report, when not inquiring the configuration information of Target cell, carry out the configuration information of the neighbor cell query aim residential quarter in the Neighboring Cell List.
Switch unit, also be used for when not inquiring the configuration information of Target cell from the neighbor cell of Neighboring Cell List, information according to the Target cell in the information of the neighbor cell of terminal to report, the residential quarter of mating in the back-end data library inquiry network, according to the residential quarter that inquires and the distance of self and antenna feeder correlation, select optimum Match residential quarter, guiding terminal to switch to the optimum Match residential quarter.
Switch unit, concrete being used for when other neighbor cells except Target cell from the neighbor cell of Neighboring Cell List or terminal to report inquire the configuration information of a residential quarter, guiding terminal is to this residential quarter switching.
Switch unit, concrete being used for when other neighbor cells except Target cell from the neighbor cell of Neighboring Cell List or terminal to report inquire the configuration information of a plurality of residential quarters, position and day feedforward information to a plurality of residential quarters of back-end data library inquiry, select optimum Match residential quarter, guiding terminal to switch to the optimum Match residential quarter according to a plurality of residential quarters and the distance of self and antenna feeder correlation.
obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on single calculation element, perhaps be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, perhaps they are made into respectively each integrated circuit modules, perhaps a plurality of modules in them or step being made into the single integrated circuit module realizes.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is only the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a method that realizes that terminal is switched, is characterized in that, comprising:
Serving BS is after the information of the neighbor cell that receives terminal to report, judge the configuration information of the Target cell in the neighbor cell that whether comprises described terminal to report in Neighboring Cell List, if do not comprise, the configuration information of the described Target cell of the inquiry of the neighbor cell in the described Neighboring Cell List, switch according to the described terminal of configuration information guiding that inquires.
2. the method for claim 1, is characterized in that, also comprises:
Described serving BS is in the information of a plurality of neighbor cells of described terminal to report, and, when not comprising the configuration information of described Target cell in described Neighboring Cell List, configuration information to the described Target cell of other neighbor cells inquiry except Target cell of described terminal to report, when not inquiring the configuration information of described Target cell, carry out the configuration information of the described described Target cell of neighbor cell inquiry in described Neighboring Cell List.
3. method as claimed in claim 2, is characterized in that, also comprises:
Described serving BS is not when the neighbor cell from described Neighboring Cell List inquires the configuration information of described Target cell, information according to the Target cell in the information of the neighbor cell of described terminal to report, the residential quarter of mating in the back-end data library inquiry network, according to the residential quarter that inquires and the distance of self and antenna feeder correlation, select the optimum Match residential quarter, guide described terminal to switch to the optimum Match residential quarter.
4. method as claimed in claim 2, is characterized in that, also comprises:
When described serving BS inquired the configuration information of a residential quarter at other neighbor cells except Target cell of the neighbor cell from described Neighboring Cell List or described terminal to report, guiding terminal switched to this residential quarter.
5. method as claimed in claim 2, is characterized in that, also comprises:
When described serving BS inquires the configuration information of a plurality of residential quarters at other neighbor cells except Target cell of the neighbor cell from described Neighboring Cell List or described terminal to report, position and day feedforward information to the described a plurality of residential quarters of back-end data library inquiry, select the optimum Match residential quarter according to a plurality of residential quarters and the distance of self and antenna feeder correlation, guide described terminal to switch to the optimum Match residential quarter.
6. a device of realizing that terminal is switched, is characterized in that, comprising: information receiving unit, judging unit and switch unit, wherein:
Described information receiving unit is used for the information of the neighbor cell that receiving terminal reports;
Described judging unit after the information for the neighbor cell that receives terminal to report at described information receiving unit, judges the configuration information of the Target cell in the neighbor cell that whether comprises described terminal to report in Neighboring Cell List;
Described switch unit, when being used for the configuration information of the Target cell in described judgment unit judges Neighboring Cell List does not comprise neighbor cell, the configuration information of the described Target cell of neighbor cell inquiry in the described Neighboring Cell List switches according to the described terminal of configuration information guiding that inquires.
7. device as claimed in claim 6 is characterized in that:
Described switch unit, also be used for the information at a plurality of neighbor cells of described terminal to report, and, when not comprising the configuration information of described Target cell in described Neighboring Cell List, configuration information to the described Target cell of other neighbor cells inquiry except Target cell of described terminal to report, when not inquiring the configuration information of described Target cell, carry out the configuration information of the described described Target cell of neighbor cell inquiry in described Neighboring Cell List.
8. device as claimed in claim 7 is characterized in that:
Described switch unit, also be used for when not inquiring the configuration information of described Target cell from the neighbor cell of described Neighboring Cell List, information according to the Target cell in the information of the neighbor cell of described terminal to report, the residential quarter of mating in the back-end data library inquiry network, according to the residential quarter that inquires and the distance of self and antenna feeder correlation, select the optimum Match residential quarter, guide described terminal to switch to the optimum Match residential quarter.
9. device as claimed in claim 7 is characterized in that:
Described switch unit, concrete being used for when other neighbor cells except Target cell from the neighbor cell of described Neighboring Cell List or described terminal to report inquire the configuration information of a residential quarter, guiding terminal is to this residential quarter switching.
10. device as claimed in claim 7 is characterized in that:
Described switch unit, concrete being used for when other neighbor cells except Target cell from the neighbor cell of described Neighboring Cell List or described terminal to report inquire the configuration information of a plurality of residential quarters, position and day feedforward information to the described a plurality of residential quarters of back-end data library inquiry, select the optimum Match residential quarter according to a plurality of residential quarters and the distance of self and antenna feeder correlation, guide described terminal to switch to the optimum Match residential quarter.
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| CN2011104163856A CN103167566A (en) | 2011-12-14 | 2011-12-14 | Method and device for realizing terminal switching |
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| CN2011104163856A CN103167566A (en) | 2011-12-14 | 2011-12-14 | Method and device for realizing terminal switching |
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Application publication date: 20130619 |