CN104853389A - Method for switching between cells and device thereof - Google Patents
Method for switching between cells and device thereof Download PDFInfo
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- CN104853389A CN104853389A CN201510239391.7A CN201510239391A CN104853389A CN 104853389 A CN104853389 A CN 104853389A CN 201510239391 A CN201510239391 A CN 201510239391A CN 104853389 A CN104853389 A CN 104853389A
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- switching
- boundary line
- switch
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/00837—Determination of triggering parameters for hand-off
- H04W36/008375—Determination of triggering parameters for hand-off based on historical data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
Abstract
The present invention discloses a method for switching between cells and a device thereof for improving the suppression efficiency of user equipment ping-pong handover. The method comprises the steps that a station determines the initial switch boundary of a local jurisdiction first cell to an adjacent second cell, the initial switch boundary is subjected to adaptive smoothing processing to obtain an adaptive switch boundary, based on the adaptive switch boundary and the initial switch boundary, the switch inhibition area of the first cell for the second cell is determined, and after the message that the request sent by the user equipment in the first cell is switched to the second cell, when the user equipment in the first cell is in the switch inhibition area of the first cell for the second cell, the switch of the user equipment in the first cell to the second cell is not allowed. In this way, the phenomenon of the user equipment ping-pong handover between cells can be effectively prevented, the ping-pong handover of all equipment can be effectively inhibited based on a cell level, and the ping-pong handover suppression efficiency is improved.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of method of handover between cells and device.
Background technology
At Long Term Evolution (Long Term Evolution, LTE) in communication system, subscriber equipment is when the edge of multiple community moves, because margin signal covers the unstable phenomenon that there will be a large amount of pingpang handoff, access is switched back and forth between so-called pingpang handoff and subscriber equipment Hui Liangge community, speed can be caused like this to decline and signaling is wasted, and the risk that this subscriber equipment goes offline can be improved.
In the process realizing handover between cells, base station according to switchover policy to the subscriber equipment accessed by wireless heterogeneous networks (Radio Resource Control, RRC) measurement parameter needed for reconfiguration message configuration is connected, subscriber equipment carry out measurement and result level and smooth after by measurement report message by protocol measure value and physical cell identity (Physical cell ID, PCI) report base station, the switching to related cell is triggered according to measuring object frequency and community PCI in base station.
In order to the problem suppressing or avoid the pingpang handoff of subscriber equipment to bring, existing implementation method is, base station is when receiving the measurement report result of user equipment to report, according to the Cell penalty list that the historical information of this subscriber equipment generates, whether the community that judgement will switch is in this Cell penalty list, if, then judge whether the community that will switch has exceeded punishment duration in the punishment list of this community further, if not super punishment duration, then suppress this subscriber equipment to the cell merge that will switch, otherwise, discharge the punishment of the community that this will switch, this user is enable to carry out free switching two minizones.Wherein, punishment list be based on terminating stage other, list comprises: by the CGI of punishment community, the information such as penalty coefficient, subscriber equipment turn-on time.
The method of suppression minizone of the prior art pingpang handoff, can only suppress single subscriber equipment according to the punishment list of subscriber equipment, users all in community can not be applicable to, suppression efficiency is low, and can only be suppressed for punishment community by the parameter preset, dynamically can not change according to environmental changes such as the signals of minizone.
Summary of the invention
The embodiment of the present invention provides a kind of method and device of handover between cells, in order to solve exist in prior art can only take after there is pingpang handoff to punish that the mode of list carries out suppressing and the suppression minizone pingpang handoff inefficiency that causes for the motion track of unique user, and the problem of pingpang handoff suppression cannot be carried out for other users in community.
The concrete technical scheme that the embodiment of the present invention provides is as follows:
A method for handover between cells, comprising:
The initial switching boundary line of the first community for second community adjacent with described first community is determined in base station, and fitting and smoothing process is carried out in described initial switching boundary line, obtains described first community and switches boundary line for the matching between described second community;
Base station switches boundary line and described initial switching boundary line based on described matching, determines the switching inhibition zone of described first community for described second community;
Base station is after the request receiving the transmission of the subscriber equipment in described first community switches to the message of described second community, determine the subscriber equipment in described first community be in described first community in the switching inhibition zone of described second community time, do not allow the subscriber equipment in described first community to switch to described second community.
Like this, can according to the measurement report of user equipment to report, in conjunction with the switching inhibition zone between adjacent Liang Ge community, whether this subscriber equipment of synthetic determination can perform switching, thus effectively prevent the phenomenon of inter-cell user equipment pingpang handoff, and based on switching inhibition zone, can based on cell level, the pingpang handoff of all subscriber equipmenies is effectively suppressed, improves pingpang handoff suppression efficiency.
Preferably, the initial switching boundary line of the first community for second community adjacent with described first community is determined in base station, specifically comprises:
Base station is according to the measurement report result of the user equipment to report in described first community of record, in conjunction with the punishment cell list of the subscriber equipment of reporting measurement reports result, determine the N number of switching inhibition point between described first community and described second community, described N number of switching inhibition point is connected, forms the initial switching boundary line between described first community and described second community
Wherein, N value is that described base station is pre-configured.
Preferably, process of fitting treatment is carried out in described initial switching boundary line, obtains described first community and switch boundary line for the matching between described second community, specifically comprise:
The broken line that described N number of switching inhibition point connects into is carried out process of fitting treatment, obtain matched curve, by the further smoothing process of matched curve obtained, finally obtain fitting a straight line, described fitting a straight line is switched boundary line as the matching between described first community and described second community.
Preferably, switch boundary line and described initial switching boundary line based on described matching, determine the switching inhibition zone of described first community for described second community, specifically comprise:
Respectively based on the N number of switching inhibition point in described initial switching boundary line, switch boundary line to described matching and do vertical line, obtain N bar vertical line;
In described N bar vertical line, switch both sides, boundary line in described matching respectively and choose a longest vertical line, obtain two long vertical lines, and determine two switching inhibition points that described two long vertical lines are corresponding;
Switch inhibition point based on two that obtain, do the parallel lines that described matching switches the straight line in boundary line respectively, obtain two parallel lines;
By the region between described two parallel lines, the switching be defined as between described first community and described second community suppresses overall area;
The parallel lines of close described first cell side and described matching are switched the region between boundary line, is defined as the switching inhibition zone of described first community for described second community.
Preferably, base station, after the request receiving the transmission of the subscriber equipment in described first community switches to the message of described second community, comprises further:
Determining that the subscriber equipment in described first community is in described switching and suppresses in overall area, and be not in described first community in the switching inhibition zone of described second community time, allow the subscriber equipment in described first community to switch to described second community.
Preferably, after not allowing the subscriber equipment in described first community to switch to described second community, comprise further:
Based on the measurement report result of the user equipment to report in described first community, the initial switching boundary line of described first community for described second community is upgraded, and further the switching inhibition zone of described first community for described second community is upgraded.
Like this, by upgrading pingpang handoff inhibition zone at any time, the ageing of inhibition zone and validity can be ensured.
A device for handover between cells, comprising:
First division unit, for determining the initial switching boundary line of the first community for second community adjacent with described first community, fitting and smoothing process is carried out in described initial switching boundary line, obtains described first community and switch boundary line for the matching between described second community;
Second division unit, for switching boundary line and described initial switching boundary line based on described matching, determines the switching inhibition zone of described first community for described second community;
Switch unit, after switching to the message of described second community in the request receiving the transmission of the subscriber equipment in described first community, determine the subscriber equipment in described first community be in described first community in the switching inhibition zone of described second community time, do not allow the subscriber equipment in described first community to switch to described second community.
Like this, can according to the measurement report of user equipment to report, in conjunction with the switching inhibition zone between adjacent Liang Ge community, whether this subscriber equipment of synthetic determination can perform switching, thus effectively prevent the phenomenon of inter-cell user equipment pingpang handoff, and based on switching inhibition zone, can based on cell level, the pingpang handoff of all subscriber equipmenies is effectively suppressed, improves pingpang handoff suppression efficiency.
Preferably, determining the initial switching boundary line of the first community for second community adjacent with described first community, described first division unit specifically for:
Base station is according to the measurement report result of the user equipment to report in described first community of record, in conjunction with the punishment cell list of the subscriber equipment of reporting measurement reports result, determine the N number of switching inhibition point between described first community and described second community, described N number of switching inhibition point is connected, form the initial switching boundary line between described first community and described second community
Wherein, N value is that described base station is pre-configured.
Preferably, process of fitting treatment is being carried out in described initial switching boundary line, obtain described first community for described second community matching switch boundary line time, described first division unit specifically for:
The broken line that described N number of switching inhibition point connects into is carried out process of fitting treatment, obtain matched curve, by the further smoothing process of matched curve obtained, finally obtain fitting a straight line, described fitting a straight line is switched boundary line as described first community for the matching between described second community.
Preferably, switching boundary line and described initial switching boundary line based on described matching, when determining the switching inhibition zone of described first community for described second community, described second division unit specifically for:
Respectively based on the N number of switching inhibition point in described initial switching boundary line, switch boundary line to described matching and do vertical line, obtain N bar vertical line;
In described N bar vertical line, switch both sides, boundary line in described matching respectively and choose a longest vertical line, obtain two long vertical lines, and determine two switching inhibition points that described two long vertical lines are corresponding;
Switch inhibition point based on two that obtain, do the parallel lines that described matching switches the straight line in boundary line respectively, obtain two parallel lines;
By the region between described two parallel lines, the switching be defined as between described first community and described second community suppresses overall area;
The parallel lines of close described first cell side and described matching are switched the region between boundary line, is defined as the switching inhibition zone of described first community for described second community.
Preferably, after the request receiving the transmission of the subscriber equipment in described first community switches to the message of described second community, described switch unit is further used for:
Determining that the subscriber equipment in described first community is in described switching and suppresses in overall area, and be not in described first community in the switching inhibition zone of described second community time, allow the subscriber equipment in described first community to switch to described second community.
Preferably, after not allowing the subscriber equipment in described first community to switch to described second community, comprise further:
Updating block, for the measurement report result based on the user equipment to report in described first community, the initial switching boundary line of described first community for described second community is upgraded, and further the switching inhibition zone of described first community for described second community is upgraded.
Like this, by upgrading pingpang handoff inhibition zone at any time, the ageing of inhibition zone and validity can be ensured.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention small area quorum sensing inhibitor schematic diagram;
Fig. 2 is the initial switching boundary line schematic diagram between embodiment of the present invention small area;
Fig. 3 is the method flow diagram switched between embodiment of the present invention small area;
Fig. 4 is the matched curve schematic diagram in the initial switching boundary line between embodiment of the present invention small area;
Fig. 5 is the smoothed curve schematic diagram in the initial switching boundary line between embodiment of the present invention small area;
Fig. 6 is that the matching between embodiment of the present invention small area switches boundary line schematic diagram;
Fig. 7 is the switching inhibition zone schematic diagram between embodiment of the present invention small area;
Fig. 8 is the structural representation of the device switched between embodiment of the present invention small area.
Embodiment
The embodiment of the present invention devises a kind of method and device of handover between cells, by the record of the history switch data to the subscriber equipment accessed in community, form the switching threshold (also can be described as initially switch boundary line) of this community for its certain adjacent community, fitting and smoothing process is done to the initial boundary line that switches, obtain the switching boundary line of this community for the near linear of this neighbor cell, and based on this straight line and initially switch boundary line, generate the pingpang handoff inhibition zone (also can be described as pingpang handoff inhibition zone) of this community for this neighbor cell, when the subscriber equipment in this community is in this two moving between cells, when receiving the measurement report of user equipment to report, in conjunction with pingpang handoff inhibition zone, whether this subscriber equipment of synthetic determination can perform switching, thus effectively prevent the phenomenon of inter-cell user equipment pingpang handoff, and based on pingpang handoff inhibition zone, can based on cell level, the pingpang handoff of all subscriber equipmenies is effectively suppressed, improve pingpang handoff suppression efficiency, simultaneously, using the new sampled point of the measured value of user equipment to report as pingpang handoff inhibition zone, to upgrade pingpang handoff inhibition zone at any time, to ensure the ageing of inhibition zone and validity.
Below in conjunction with Figure of description, the preferred embodiment of the embodiment of the present invention is described in further detail.
Consult shown in Fig. 1, in practical application, the quorum sensing inhibitor of community is fan-shaped distribution, and A, B, C tri-communities are adjacent, can there is the region of intersecting and covering between adjacent Liang Ge community (such as community A and community B).Consult shown in Fig. 2, due to building, bridge, the impact of the barriers such as vehicle, the regional signal that covering is intersected in minizone can present uneven situation, the switching threshold of minizone is caused to present jagged line, the so-called threshold that switches refers to that the boundary line of handover between cells can occur subscriber equipment, when subscriber equipment moves between cells, the situation of pingpang handoff is just there will be when passing through jagged line, such as, when the edge of subscriber equipment between community A and community B has a common boundary mobile, suppose that the current Serving cell of subscriber equipment is community A, when through jagged line, due to the instability of signal, may to base station reporting measurement reports, to switch to community B, after being switched to community B, when again through jagged line, community A may be switched to again, so, the pingpang handoff of similar ABA can be there is in subscriber equipment.
Consult shown in Fig. 3, in the embodiment of the present invention, the flow process of handover between cells is as described below:
Step 300: the initial switching boundary line of the first community for second community adjacent with the first community is determined in base station, carries out fitting and smoothing process by initially switching boundary line, obtains the first community and switches boundary line for the matching between the second community;
Particularly, as mentioned above, due to extraneous factor impact between adjacent Liang Ge community (being called the first community and the second community), cause switching threshold and present jagged line, wherein, jagged line may be the initial switching boundary line of the first community for the second community, also may be the initial switching boundary line of the second community for the first community, if the first community is for the initial switching boundary line of the second community, then this jagged line is generated by the handover event of the subscriber equipment in the first community, when the subscriber equipment of the first community is through initial switching boundary line, the switching to the second community can be triggered, if the second community is for the initial switching boundary line of the first community, then this jagged line is generated by the handover event of the subscriber equipment in the second community, when the subscriber equipment of the second community is through initial switching boundary line, can trigger the switching to the first community.The embodiment of the present invention is introduced with the example that switches to of the subscriber equipment in the first community to the second community, that is, suppose that the jagged line between Liang Ge community is the initial switching boundary line of the first community for the second community.
First community is determined for the measured value that the initial switching boundary line of the second community is corresponding according to N number of handover event of the nearest subscriber equipment of historical record in the first community, and upgrades in time.
Particularly, base station is according to the measurement report result of the user equipment to report in the first community of record, in conjunction with the punishment cell list of the subscriber equipment of reporting measurement reports result, determine the N number of switching inhibition point between the first community and the second community, N number of switching inhibition point is connected, forms the initial switching boundary line between the first community and the second community.Wherein, N value is that base station is pre-configured.
Wherein, the measurement report that the first community that base station receives local administration reports, such as, subscriber equipment U1 in first community to base station reporting measurement reports, base station based on the punishment cell list of U1, according to measurement of correlation trigger formula determine that the second community meets punishment condition in conjunction with penalty coefficient time, suppress U1 to the switching of the second community, in such cases, the measured value that base station record U1 reports, and this measured value is switched inhibition point as the first community for one of the second community.The N number of switching inhibition point of random sample, or, to sample N number of switching inhibition point according to preset rules, this N number of switching inhibition point is connected, just can form the initial switching boundary line of the first community for the second community.Wherein, N value is that base station is pre-configured, and such as, N can be 20.
After determining that the first community is for the initial switching boundary line of the second community, do further process, final matching can be obtained and switch boundary line.
Particularly, the broken line that N number of switching inhibition point connects into is carried out process of fitting treatment, obtains matched curve, by the further smoothing process of matched curve obtained, finally obtain fitting a straight line, fitting a straight line is switched boundary line as the matching between the first community and the second community.
Step 310: base station switches boundary line based on matching and initially switches boundary line, determines the switching inhibition zone of the first community for the second community.
Particularly, respectively based on the initial N number of switching inhibition point switched in boundary line, switch boundary line to matching and do vertical line, obtain N bar vertical line;
In N bar vertical line, switch both sides, boundary line in matching respectively and choose a longest vertical line, obtain two long vertical lines, determine two switching inhibition points that two long vertical lines are corresponding;
Switch inhibition point based on two that obtain, do the parallel lines that matching switches the straight line in boundary line respectively, obtain two parallel lines;
By the region between two parallel lines, the switching be defined as between the first community and described second community suppresses overall area;
The parallel lines of close first cell side and matching are switched the region between boundary line, is defined as the switching inhibition zone (below also can be described as first switching inhibition zone) of the first community for the second community
In addition, if jagged line is the initial switching boundary line of the second community for the first community, determine that the second community is identical for the initially Zone switched method of the first community, just, the parallel lines of close second cell side and matching are switched the region between boundary line, is defined as the switching inhibition zone (below also can be described as second switching inhibition zone) of the second community for the first community.
Step 320: base station is after the request receiving the transmission of the subscriber equipment in the first community switches to the message of the second community, determine the subscriber equipment in the first community be in the first community in the switching inhibition zone of the second community time, do not allow the subscriber equipment in the first community to switch to the second community.
The method of the switching inhibition zone of the first community and the second minizone is determined as above-mentioned, this switching inhibition zone can surround the initial switching boundary line (i.e. jagged line) between Liang Ge community, like this, base station is when receiving the measurement report of the user equipment to report in its first community administered, no longer carry out judging whether to suppress to switch according to the punishment cell list of this subscriber equipment, but whether suppress this subscriber equipment to the switching of the second community for the position judgment that this subscriber equipment is in switching inhibition zone.
Judge whether this subscriber equipment is in the first community in the switching inhibition zone of the second community, if so, then do not allow this subscriber equipment to switch to the second community; Otherwise, allow this subscriber equipment to switch to the second community.
Like this, avoid judge whether to carry out to suppress to switch based on other punishment cell list of terminating stage and cause can only carry out suppressions process one by one to terminal, realization can be unified for the suppression process of all subscriber equipmenies in community when pingpang handoff.
Further, base station in the first community subscriber equipment suppress after the switching of community, neighbor cell second, based on the measurement report result of this user equipment to report, obtain the measured value of this subscriber equipment, and according to this measured value as the new sampled point switching inhibition point, individual for original N (being assumed to be 20) switching inhibition point is upgraded, namely, the switching inhibition point recorded the earliest is deleted from record, this new sampled point being added to these 20 switches in inhibition point, and utilize these 20 updated switching inhibition points to connect, generate the new initial switching boundary line of the first community for the second community, and further by the switching inhibition zone of the first community for the second community, first community upgrades for the switching inhibition zone of the second community.When again receiving the message to the second cell merge of user equipment to report of the first community, the switching after upgrading is adopted to suppress threshold to perform the judgement whether suppressing switching.
Below in conjunction with concrete application scenarios, the embodiment of the present invention is described in further detail.
For the community A shown in Fig. 1 or Fig. 2 and community B, suppose that community A is to represent above-mentioned first community, community B represents above-mentioned second community.
Jagged line between Fig. 2 small area A and community B is the initial switching boundary line of community A for community B, base station is according to the measurement report of the user equipment to report in the community A received, based on the punishment cell list of this subscriber equipment, formula is triggered in conjunction with penalty coefficient according to measurement of correlation, when determining that community B meets punishment condition, suppress this subscriber equipment to the switching of community B, and record the measured value of now this user equipment to report, the measured value of record is suppressed switching point (or being called sampled point) as between community A and community B, so, the sampled point of setting number can be obtained, such as, it is 20 that base station can set number, then 20 sampled points of record are recently taked in base station, connect and generate jagged line, be the initial switching boundary line of community A for community B.
Community A is carried out matching for the initial switching boundary line of community B, obtain matched curve as shown in Figure 4, further that matched curve is smoothing again, obtain curve as shown in Figure 5, further the curve in Fig. 5 is carried out matching again, finally obtain the straight line shown in Fig. 6, this straight line can represent the matching switching boundary line of community A for community B.The fitting and smoothing processing procedure that above-mentioned Fig. 3, Fig. 4, Fig. 5 and Fig. 6 represent is a schematic process, and detailed process can realize according to computer program.
As shown in Figure 6, matching switches boundary line initially will switch boundary line cutting, namely, matching switches both sides, boundary line respectively multiple switching inhibition point, switch inhibition point based on each and do vertical line to matching switching boundary line, many vertical lines can be obtained, the both sides switching boundary line in matching choose a vertical line the longest respectively, and two that find these two vertical lines the longest corresponding switch inhibition point, switch inhibition point based on these two and do the parallel lines that matching switches boundary line, obtain two parallel lines as shown in Figure 7, matching in the middle of supposing switches boundary line S and represents, parallel lines near community A represent with R, parallel lines near community B represent with L, then by the region between R and L, the switching be defined as between community A and community B suppresses overall area, region between R and S is defined as the switching inhibition zone of community A for community B.
If the jagged line between Fig. 2 small area A and community B is the initial switching boundary line of community B for community A, then community B switches boundary line and switches the forming process of inhibition zone similar for the matching of community A, just community B is determine based on the handover event of the subscriber equipment in the B of community for the initial switching boundary line of community A, repeats part repeat no more at this.In such cases, the region between L and S is defined as community B and switches inhibition zone for second of community A.
Two kind scenes are suppressed to be described for the switching suppression of community B and community B for the switching of community A with community A below.
Take jagged line as separator bar, the region of close community A is a-quadrant, the region of close community B is B region, before the method adopting the embodiment of the present invention, when the fringe region of subscriber equipment between community A and community B moves, pass through in the process of jagged line, there will be the situation of pingpang handoff.
Such as, when the region of subscriber equipment U3 between R and S in the A of community is moved, when moving to B region from a-quadrant, the switching that can trigger to community B is reported according to the measurement of reality;
When the region of subscriber equipment U4 between L and S in the B of community is moved, when moving to a-quadrant from B region, report the switching that can trigger to community A according to actual measurement.
And in embodiments of the present invention, when the region of subscriber equipment U3 between R and S in the A of community is moved, when moving to B region from a-quadrant, base station is after the measurement receiving U3 reports, determine that U3 is in the first switching inhibition zone, then suppress U3 to the switching of community B.Afterwards, based on the measured value that U3 reports, generate new sampled point, and initially will switch the renewal of suppression boundary line, upgrade further and switch inhibition zone.
U3 switches boundary line once cross matching, and namely cross straight line S, then report according to the measurement of reality, the switching to community B can be triggered in base station.
In like manner, when the region of subscriber equipment U4 between L and S in the B of community is moved, when moving in the sawtooth protruded to community B, base station, after the measurement receiving U4 reports, determines that U4 is in the second switching inhibition zone, then suppress U4 to the switching of community A.Afterwards, based on the measured value that U4 reports, generate new sampled point, and initially will switch the renewal of suppression boundary line, upgrade further and switch inhibition zone.
U4 switches boundary line once cross matching, and namely cross straight line S, then report according to the measurement of reality, the switching to community A can be triggered in base station.
Like this, by switching determination and the division of inhibition zone, the pingpang handoff of the subscriber equipment of two cell edges can effectively be suppressed.
Based on above-described embodiment, consult shown in Fig. 8, have also been devised a kind of device of handover between cells in the embodiment of the present invention, comprising:
First division unit 80, for determining the initial switching boundary line of the first community for second community adjacent with the first community, carries out fitting and smoothing process by initially switching boundary line, obtains the first community and switches boundary line for the matching between the second community;
Second division unit 81, for switching boundary line based on matching and initially switching boundary line, determines the switching inhibition zone of the first community for the second community;
Switch unit 82, after switching to the message of the second community in the request receiving the transmission of the subscriber equipment in the first community, determine the subscriber equipment in the first community be in the first community in the switching inhibition zone of the second community time, do not allow the subscriber equipment in the first community to switch to the second community.
Like this, can according to the measurement report of user equipment to report, in conjunction with the switching inhibition zone between adjacent Liang Ge community, whether this subscriber equipment of synthetic determination can perform switching, thus effectively prevent the phenomenon of inter-cell user equipment pingpang handoff, and based on switching inhibition zone, can based on cell level, the pingpang handoff of all subscriber equipmenies is effectively suppressed, improves pingpang handoff suppression efficiency.
Preferably, determining the initial switching boundary line of the first community for second community adjacent with the first community, the first division unit 80 specifically for:
Base station is according to the measurement report result of the user equipment to report in the first community of record, in conjunction with the punishment cell list of the subscriber equipment of reporting measurement reports result, determine the N number of switching inhibition point between the first community and the second community, N number of switching inhibition point is connected, form the initial switching boundary line between the first community and the second community
Wherein, N value is that base station is pre-configured.
Preferably, carrying out process of fitting treatment by initially switching boundary line, obtaining matching between the first community and the second community when switching boundary line, the first division unit 80 specifically for:
The broken line that N number of switching inhibition point connects into is carried out process of fitting treatment, obtains matched curve, by the further smoothing process of matched curve obtained, finally obtain fitting a straight line, fitting a straight line is switched boundary line as the first community for the matching between the second community.
Preferably, switching boundary line and initially switch boundary line based on matching, when determining the switching inhibition zone of the first community for the second community, the second division unit 81 specifically for:
Respectively based on the initial N number of switching inhibition point switched in boundary line, switch boundary line to matching and do vertical line, obtain N bar vertical line;
In N bar vertical line, switch both sides, boundary line in matching respectively and choose a longest vertical line, obtain two long vertical lines, and determine two switching inhibition points that two long vertical lines are corresponding;
Switch inhibition point based on two that obtain, do the parallel lines that matching switches the straight line in boundary line respectively, obtain two parallel lines;
By the region between two parallel lines, the switching be defined as between the first community and the second community suppresses overall area;
The parallel lines of close first cell side and matching are switched the region between boundary line, is defined as the switching inhibition zone of the first community for the second community.
Preferably, after the request receiving the transmission of the subscriber equipment in the first community switches to the message of the second community, switch unit is further used for:
Determine the subscriber equipment in the first community be in switch suppress overall area, and be not in the first community in the switching inhibition zone of the second community time, allow the subscriber equipment in the first community to switch to the second community.
Preferably, after not allowing the subscriber equipment in the first community to switch to the second community, comprise further:
Updating block 83, for the measurement report result based on the user equipment to report in the first community, upgrades the initial switching boundary line of the first community for the second community, and is upgraded the switching inhibition zone of the first community for the second community further.
Like this, by upgrading pingpang handoff inhibition zone at any time, the ageing of inhibition zone and validity can be ensured.
In sum, in the embodiment of the present invention, the initial switching boundary line of the first community for second community adjacent with the first community of local administration is determined in base station, fitting and smoothing process is carried out by initially switching boundary line, obtain the first community and switch boundary line for the matching between the second community, switch boundary line based on matching and initially switch boundary line, determine the switching inhibition zone of the first community for the second community, after the request receiving the transmission of the subscriber equipment in the first community switches to the message of the second community, determine the subscriber equipment in the first community be in the first community in the switching inhibition zone of the second community time, the subscriber equipment in the first community is not allowed to switch to described second community.Like this, can according to the measurement report of user equipment to report, in conjunction with the switching inhibition zone between adjacent Liang Ge community, whether this subscriber equipment of synthetic determination can perform switching, thus effectively prevent the phenomenon of inter-cell user equipment pingpang handoff, and based on switching inhibition zone, can based on cell level, the pingpang handoff of all subscriber equipmenies is effectively suppressed, improves pingpang handoff suppression efficiency.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the embodiment of the present invention and not depart from the spirit and scope of the embodiment of the present invention.Like this, if these amendments of the embodiment of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (12)
1. a method for handover between cells, is characterized in that, comprising:
The initial switching boundary line of the first community for second community adjacent with described first community is determined in base station, and fitting and smoothing process is carried out in described initial switching boundary line, obtains described first community and switches boundary line for the matching between described second community;
Base station switches boundary line and described initial switching boundary line based on described matching, determines the switching inhibition zone of described first community for described second community;
Base station is after the request receiving the transmission of the subscriber equipment in described first community switches to the message of described second community, determine the subscriber equipment in described first community be in described first community in the switching inhibition zone of described second community time, do not allow the subscriber equipment in described first community to switch to described second community.
2. the method for claim 1, is characterized in that, the initial switching boundary line of the first community for second community adjacent with described first community is determined in base station, specifically comprises:
Base station is according to the measurement report result of the user equipment to report in described first community of record, in conjunction with the punishment cell list of the subscriber equipment of reporting measurement reports result, determine the N number of switching inhibition point between described first community and described second community, described N number of switching inhibition point is connected, form the initial switching boundary line between described first community and described second community, wherein, N value is that described base station is pre-configured.
3. method as claimed in claim 2, is characterized in that, process of fitting treatment is carried out in described initial switching boundary line, obtains described first community and switches boundary line for the matching between described second community, specifically comprise:
The broken line that described N number of switching inhibition point connects into is carried out process of fitting treatment, obtain matched curve, by the further smoothing process of matched curve obtained, finally obtain fitting a straight line, described fitting a straight line is switched boundary line as described first community for the matching between described second community.
4. method as claimed in claim 3, is characterized in that, switches boundary line and described initial switching boundary line, determine the switching inhibition zone of described first community for described second community, specifically comprise based on described matching:
Respectively based on the N number of switching inhibition point in described initial switching boundary line, switch boundary line to described matching and do vertical line, obtain N bar vertical line;
In described N bar vertical line, switch both sides, boundary line in described matching respectively and choose a longest vertical line, obtain two long vertical lines, and determine two switching inhibition points that described two long vertical lines are corresponding;
Switch inhibition point based on two that obtain, do the parallel lines that described matching switches the straight line in boundary line respectively, obtain two parallel lines;
By the region between described two parallel lines, the switching be defined as between described first community and described second community suppresses overall area;
The parallel lines of close described first cell side and described matching are switched the region between boundary line, is defined as the switching inhibition zone of described first community for described second community.
5. method as claimed in claim 4, is characterized in that, base station, after the request receiving the transmission of the subscriber equipment in described first community switches to the message of described second community, comprises further:
Determining that the subscriber equipment in described first community is in described switching and suppresses in overall area, and be not in described first community in the switching inhibition zone of described second community time, allow the subscriber equipment in described first community to switch to described second community.
6. the method as described in any one of claim 1-4, is characterized in that, after not allowing the subscriber equipment in described first community to switch to described second community, comprises further:
Based on the measurement report result of the user equipment to report in described first community, the initial switching boundary line of described first community for described second community is upgraded, and further the switching inhibition zone of described first community for described second community is upgraded.
7. a device for handover between cells, is characterized in that, comprising:
First division unit, for determining the initial switching boundary line of the first community for second community adjacent with described first community, fitting and smoothing process is carried out in described initial switching boundary line, obtains described first community and switch boundary line for the matching between described second community;
Second division unit, for switching boundary line and described initial switching boundary line based on described matching, determines the switching inhibition zone of described first community for described second community;
Switch unit, after switching to the message of described second community in the request receiving the transmission of the subscriber equipment in described first community, determine the subscriber equipment in described first community be in described first community in the switching inhibition zone of described second community time, do not allow the subscriber equipment in described first community to switch to described second community.
8. device as claimed in claim 7, is characterized in that, determining the initial switching boundary line of the first community for second community adjacent with described first community, described first division unit specifically for:
Base station is according to the measurement report result of the user equipment to report in described first community of record, in conjunction with the punishment cell list of the subscriber equipment of reporting measurement reports result, determine the N number of switching inhibition point between described first community and described second community, described N number of switching inhibition point is connected, form the initial switching boundary line between described first community and described second community
Wherein, N value is that described base station is pre-configured.
9. device as claimed in claim 8, is characterized in that, process of fitting treatment is being carried out in described initial switching boundary line, obtains described first community when switching boundary line for the matching between described second community, described first division unit specifically for:
The broken line that described N number of switching inhibition point connects into is carried out process of fitting treatment, obtain matched curve, by the further smoothing process of matched curve obtained, finally obtain fitting a straight line, described fitting a straight line is switched boundary line as described first community for the matching between described second community.
10. device as claimed in claim 9, is characterized in that, is switching boundary line and described initial switching boundary line based on described matching, when determining the switching inhibition zone of described first community for described second community, described second division unit specifically for:
Respectively based on the N number of switching inhibition point in described initial switching boundary line, switch boundary line to described matching and do vertical line, obtain N bar vertical line;
In described N bar vertical line, switch both sides, boundary line in described matching respectively and choose a longest vertical line, obtain two long vertical lines, and determine two switching inhibition points that described two long vertical lines are corresponding;
Switch inhibition point based on two that obtain, do the parallel lines that described matching switches the straight line in boundary line respectively, obtain two parallel lines;
By the region between described two parallel lines, the switching be defined as between described first community and described second community suppresses overall area;
The parallel lines of close described first cell side and described matching are switched the region between boundary line, is defined as the switching inhibition zone of described first community for described second community.
11. devices as claimed in claim 10, is characterized in that, after the request receiving the transmission of the subscriber equipment in described first community switches to the message of described second community, described switch unit is further used for:
Determining that the subscriber equipment in described first community is in described switching and suppresses in overall area, and be not in described first community in the switching inhibition zone of described second community time, allow the subscriber equipment in described first community to switch to described second community.
12. devices as described in any one of claim 7-11, is characterized in that, after not allowing the subscriber equipment in described first community to switch to described second community, comprise further:
Updating block, for the measurement report result based on the user equipment to report in described first community, the initial switching boundary line of described first community for described second community is upgraded, and further the switching inhibition zone of described first community for described second community is upgraded.
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