CN103686857A - Load balancing method and base station - Google Patents
Load balancing method and base station Download PDFInfo
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- CN103686857A CN103686857A CN201310745659.5A CN201310745659A CN103686857A CN 103686857 A CN103686857 A CN 103686857A CN 201310745659 A CN201310745659 A CN 201310745659A CN 103686857 A CN103686857 A CN 103686857A
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Abstract
The invention discloses a load balancing method and a base station, and relates to communication technologies. The load balancing method comprises: after selecting a target adjacent cell to be subjected to load balance, respectively determining quantity of users to be balanced to each target adjacent cell, configuring A4 measurement of frequency points in corresponding target adjacent cell to the users with corresponding quantity according to a balancing user list previously determined according to user load, at last balancing the user which reports the A4 measurement result to the corresponding target adjacent cell, so that the user with heavy load can be balanced to the adjacent cell; A4 measurement is configured for each user, which is targeted; when user reports the A4 measurement, for the user, the signal of the target adjacent cell subjected to the A4 measurement is better than that of a servicing cell, so that the load balance can be controlled well and appearance of Ping-Pang balance, frequent switching and the like can be reduced by balancing the user to the corresponding target adjacent cell.
Description
Technical field
The present invention relates to the communication technology, relate in particular to a kind of load equalization method and base station.
Background technology
In 40M networking scene, the antenna directional angle possibility diversity ratio between the community of different layers is larger, causes Yi Ge community to have " overlapping covering " relation with between two or more communities of different layers.Corresponding with this networking scene, exist the 40M part that one or more cell configuration and certain community are had with the neighboring BS relationship covering, the load that need meet Yi Ge community can, to a plurality of with covering adjacent area difference balanced loads, reach load balancing.
From the angle of cell coverage area, 40M networking scene is carried out to theoretic differentiation:
As shown in Figure 1,40M completely requires between CellA and CellB antenna feeder altogether in theory with the scene covering, and belongs to identical radio frequency band or frequency range close, and between Liang Ge community, transmitting power is suitable.
As shown in Figure 2, for the covering scene of large ringlet.In the situation that between community A and community B, working frequency range is close, need to carry out by different transmitting powers is set the covering relation of realization theory aspect " large snare ringlet "; Community A and community B working frequency range be relatively far apart time, and between community, transmitting power arranges when identical, because the difference of nature of radio propagation causes covering relation between community to present the covering relation of " large ringlet ";
For the same covering scene of the part shown in Fig. 2, do following introduction:
1. the consideration based on district wireless signals intensity to user equilibrium under this scene:
The load balancing of Cell A and Cell B overlapping region (Fig. 2 " LB Area "), because the signal covering in Dui Zhekuai region, Liang Ge community is all better, base station selection does not report the user of A2 to carry out equilibrium; And Cell Edge User, the coverage condition of minizone in the time of need to considering actual balanced user, design adopts the user equilibrium strategy of measuring based on A4, can select the A4 of user's configuration load equilibrium to measure when the high load capacity of community, relies on the A4 of reporting of user load balancing to trigger user equilibrium.
2. the consideration based on cell load to user equilibrium under this scene:
When the load of a certain community reaches the higher load condition of base station sets in Cell A and Cell B, need to adopt load balancing strategy, the user of this community of selected part is balanced to by the mode of switching the load balancing that another community reaches minizone.For fear of taking after user equilibrium, another community reaches high load capacity immediately, the phenomenon of the table tennis equilibrium of appearance, and load balancing need to take into account the load condition of Liang Ge community, introduces the contrast mechanism of difference threshold.As CellA community reaches high load capacity, need to be to the balanced user of CellB,, when equilibrium, judgement need to satisfy condition: the difference threshold that the load value that CellA deducts CellB is more than or equal to base station sets could trigger (differentiating uplink and downlink).So just got rid of CellA load lower than the cell load of CellB load and CellA and the CellB scene that is not suitable for load balancing such as suitable.
For the comparison of difference threshold, the realization of base station have " and " and two kinds of strategies of "or"." and " strategy refer to, the load difference of the uplink and downlink of Liang Ge community all will meet base station sets difference threshold just can be balanced; The strategy of "or" refers to, if the load difference of the uplink and downlink of Liang Ge community have a direction to meet base station sets difference threshold just can be balanced, acquiescence is selected the strategy of "or" conventionally.
Visible, there is following defect in current load-balancing method:
1) due to community, reach the Rule of judgment differentiating uplink and downlink of high load capacity, so the load of cell uplink or descending a direction reaches high load capacity, community reaches higher load condition, need to trigger load balancing.In balancing procedure, contrast the strategy that minizone difference threshold is selected "or" at present, cannot avoid the balanced phenomenon of rattling, and the phenomenon probability of occurrence of rattling balanced is larger.
2) in the network environment of reality, Cell A and Cell B are not large ringlet covering scene desirable as Fig. 2, may occur having " overlapping covering " relation between two above communities, supporting configuration a plurality of with covering under the scenes of adjacent area, current realize uncontrollable to each with the load and the balanced user that cover adjacent area equilibrium.
3) in actual load balancing procedure, may occur, user is balanced to behind Target cell by equalization algorithm, it reports switchback cell-of-origin owing to covering reason by measurement again within very short time, cause user frequently to be switched, the problem such as call drop probability increases, and portfolio effect is not obvious.
Summary of the invention
The embodiment of the present invention provides a kind of load equalization method and base station, to realize preferably, load balancing is controlled, and reduces the appearance of the phenomenons such as balanced, the frequent switching of table tennis.
A kind of load equalization method that the embodiment of the present invention provides, comprising:
Determine when Serving cell reaches load balancing condition, according to the load condition of adjacent area, from thering is with Serving cell the target adjacent area that overlapping covered adjacent area, load balancing is carried out in selection;
According to the load of each target adjacent area, determine to the number of users of each target adjacent area equilibrium;
According to the balanced user list of determining according to customer charge in advance, the A4 that the user of respective numbers is configured to the frequency of respective objects adjacent area measures, described A4 is measured as and measures Serving cell signal and neighboring area signal, and reports A4 measurement result when neighboring area signal is better than setting thresholding;
To report the user equilibrium of A4 measurement result to corresponding target adjacent area.
Because base station is measured for each target neighbor cell configuration A4 respectively, pointed, when reporting of user A4 measurement result, explanation is to this user, the signal of the target adjacent area that A4 measures is better than the signal of Serving cell, so this user equilibrium, to corresponding target adjacent area, can be controlled load balancing preferably, is reduced the appearance of the phenomenons such as balanced, the frequent switching of table tennis.
Further, for the phenomenon that prevents from rattling balanced occurs, when described definite Serving cell reaches load balancing condition, according to the load condition of adjacent area, from thering is with Serving cell the target adjacent area that overlapping covered adjacent area, load balancing is carried out in selection, specifically comprise:
Determine when Serving cell reaches load balancing condition, the adjacent area of selecting itself and the load difference with overlapping covered adjacent area to reach setting thresholding is target adjacent area.
Further, when described definite Serving cell reaches load balancing condition, the adjacent area of selecting itself and the load difference with overlapping covered adjacent area to reach setting thresholding is target adjacent area, specifically comprises:
Determine when Serving cell down direction reaches load balancing condition, selecting itself and the adjacent area that the downlink load difference with overlapping covered adjacent area reaches the first thresholding is target adjacent area;
Determine when Serving cell up direction reaches load balancing condition, selecting itself and the adjacent area that the uplink load difference with overlapping covered adjacent area reaches the second thresholding is target adjacent area;
Determine when uplink and downlink direction in Serving cell all reaches load balancing condition, select itself and the downlink load difference with overlapping covered adjacent area to reach the first thresholding or itself and adjacent area that the uplink load difference with overlapping covered adjacent area reaches the second thresholding is target adjacent area.
Further, in order to reach a plurality of, with covering adjacent area after adopting balance policy, reach the effect of each minizone load balancing, according to the load of each target adjacent area, determine to the number of users of each target adjacent area equilibrium, specifically comprise:
To each target adjacent area, determining need to be to the load of this target adjacent area equilibrium, and this load is no more than Serving cell when 1/2nd of preload and this current load difference in target adjacent area;
Determine that needing balanced number of users is the minimum number that reaches the product of this load and preset proportion.
Preferably, described to each target adjacent area, determining need to be to the load of this target adjacent area equilibrium, and this load is no more than Serving cell when 1/2nd of preload and this current load difference in target adjacent area, specifically comprises:
To each target adjacent area, determine to be to the load of this target adjacent area equilibrium:
Wherein, m is target adjacent area number, and Ls represents the load of Serving cell, and Ln_i is the load of i target adjacent area; Ln_j is the load of the target adjacent area of current judgement.
Further, when configuration A4 measures, can consider user's position and user self load, consider Target cell to this user's coverage condition and consider to reach equilibrium object fast and effectively by the larger user of the load of balanced high load capacity direction, reduce drop rate, the described balanced user list according to determining according to customer charge in advance, the A4 that the user of respective numbers is configured to the frequency of respective objects adjacent area measures, and specifically comprises:
According to customer charge order from big to small, to reporting adjacent area in the user of A3 measurement report, be that the A4 that the user of target adjacent area configures the frequency of respective objects adjacent area measures;
When the number of users of measuring as the A4 of the frequency of certain target adjacent area of configuration is less than the determined number of users to this target adjacent area equilibrium, never report in the user of A3 measurement report, the A4 that according to customer charge order from big to small, user is configured the frequency of respective objects adjacent area measures, until configure the number of users that the A4 of the frequency of this target adjacent area measures, reaches the determined number of users to this target adjacent area equilibrium.
In order further to prevent the generation of pingpang handoff, also comprise:
The user who is switched to Serving cell by load balancing from other community is carried out to mark, in setting-up time, avoid the user of institute's mark to switch go back to cell-of-origin.
Preferably, the described balanced user list according to determining according to customer charge in advance, when the A4 that the user of respective numbers is configured to the frequency of respective objects adjacent area measures, avoid the A4 that the mark user of Yu Qi cell-of-origin, target adjacent area is configured to the frequency of this target adjacent area to measure.
Further, when user's measurement of institute's mark reports request to switch go back to cell-of-origin, when user's measurement of institute's mark reports request to switch go back to cell-of-origin, also comprise:
If the priority of frequency that this user is switched to Serving cell, does not configure A4 to this user and measures for switching back the priority of the frequency of cell-of-origin higher than this;
If the priority of frequency that this user is switched to Serving cell for switching back the priority of the frequency of cell-of-origin, is only switched go back to cell-of-origin by this user in Serving cell spectrum efficiency during lower than default thresholding lower than this.
The embodiment of the present invention also provides a kind of base station, comprising:
Selected cell, while reaching load balancing condition for definite Serving cell, according to the load condition of adjacent area, from having with Serving cell the target adjacent area that overlapping covered adjacent area, load balancing is carried out in selection;
Determining unit, for according to the load of each target adjacent area, determines to the number of users of each target adjacent area equilibrium;
Dispensing unit, for the balanced user list according to determining according to customer charge in advance, the A4 that the user of respective numbers is configured to the frequency of respective objects adjacent area measures, described A4 is measured as and measures Serving cell signal and neighboring area signal, and reports A4 measurement result when neighboring area signal is better than setting thresholding;
Balanced unit, for reporting the user equilibrium of A4 measurement result to corresponding target adjacent area.
This base station is measured for each target neighbor cell configuration A4 respectively, pointed, when reporting of user A4 measurement result, explanation is to this user, the signal of the target adjacent area that A4 measures is better than the signal of Serving cell, so this user equilibrium, to corresponding target adjacent area, can be controlled load balancing preferably, is reduced the appearance of the phenomenons such as balanced, the frequent switching of table tennis.
Further, for the phenomenon that prevents from rattling balanced occurs, described selected cell specifically for:
Determine when Serving cell reaches load balancing condition, the adjacent area of selecting itself and the load difference with overlapping covered adjacent area to reach setting thresholding is target adjacent area.
Further, described selected cell specifically for:
Determine when Serving cell down direction reaches load balancing condition, selecting itself and the adjacent area that the downlink load difference with overlapping covered adjacent area reaches the first thresholding is target adjacent area;
Determine when Serving cell up direction reaches load balancing condition, selecting itself and the adjacent area that the uplink load difference with overlapping covered adjacent area reaches the second thresholding is target adjacent area;
Determine when uplink and downlink direction in Serving cell all reaches load balancing condition, select itself and the downlink load difference with overlapping covered adjacent area to reach the first thresholding or itself and adjacent area that the uplink load difference with overlapping covered adjacent area reaches the second thresholding is target adjacent area.
Further, in order to reach a plurality of, with covering adjacent areas after adopting balance policy, reach the effect of each minizone load balancing, described determining unit specifically for:
To each target adjacent area, determining need to be to the load of this target adjacent area equilibrium, and this load is no more than Serving cell when 1/2nd of preload and this current load difference in target adjacent area;
Determine that needing balanced number of users is the minimum number that reaches the product of this load and preset proportion.
Preferably, described determining unit is to each target adjacent area, and determining need to be to the load of this target adjacent area equilibrium, and this load is no more than Serving cell when 1/2nd of preload and this current load difference in target adjacent area, specifically comprises:
To each target adjacent area, determine to be to the load of this target adjacent area equilibrium:
Wherein, m is target adjacent area number, and Ls represents the load of Serving cell, and Ln_i is the load of i target adjacent area; Ln_j is the load of the target adjacent area of current judgement.
Further, when configuration A4 measures, can consider user's position and user self load, consider Target cell to this user's coverage condition and consider to reach equilibrium object fast and effectively by the larger user of the load of balanced high load capacity direction, reduce drop rate, described dispensing unit specifically for:
According to customer charge order from big to small, to reporting adjacent area in the user of A3 measurement report, be that the A4 that the user of target adjacent area configures the frequency of respective objects adjacent area measures;
When the number of users of measuring as the A4 of the frequency of certain target adjacent area of configuration is less than the determined number of users to this target adjacent area equilibrium, never report in the user of A3 measurement report, the A4 that according to customer charge order from big to small, user is configured the frequency of respective objects adjacent area measures, until configure the number of users that the A4 of the frequency of this target adjacent area measures, reaches the determined number of users to this target adjacent area equilibrium.
In order further to prevent the generation of pingpang handoff, described balanced unit also for:
The user who is switched to Serving cell by load balancing from other community is carried out to mark, in setting-up time, avoid the user of institute's mark to switch go back to cell-of-origin.
Preferably, described dispensing unit also for:
According to the balanced user list of determining according to customer charge in advance, when the A4 that the user of respective numbers is configured to the frequency of respective objects adjacent area measures, avoid the A4 that the mark user of Yu Qi cell-of-origin, target adjacent area is configured to the frequency of this target adjacent area to measure.
Further, also comprise:
Processing unit, while reporting request to switch go back to cell-of-origin for the user's measurement when institute's mark, if the priority of frequency that this user is switched to Serving cell higher than this for switching back the priority of the frequency of cell-of-origin, this user not being configured to A4 measures, if the priority of frequency that this user is switched to Serving cell for switching back the priority of the frequency of cell-of-origin, is only switched go back to cell-of-origin by this user in Serving cell spectrum efficiency during lower than default thresholding lower than this.
The embodiment of the present invention provides a kind of load equalization method and base station, selection is carried out behind the target adjacent area of load balancing, determine respectively to the number of users of each target adjacent area equilibrium, again according to the balanced user list of determining according to customer charge in advance, the A4 that the user of respective numbers is configured to the frequency of respective objects adjacent area measures, finally will report the user equilibrium of A4 measurement result to corresponding target adjacent area, make it possible to as far as possible the larger user equilibrium of load to adjacent area, and for each, being configured A4 respectively measures, pointed, when reporting of user A4 measurement result, explanation is to this user, the signal of the target adjacent area that A4 measures is better than the signal of Serving cell, so this user equilibrium is arrived to corresponding target adjacent area, can to load balancing, control preferably, reduce table tennis balanced, the appearance of the phenomenons such as frequent switching.
Accompanying drawing explanation
Fig. 1 is completely with covering scene schematic diagram in prior art;
Fig. 2 is partly with covering scene schematic diagram in prior art;
The load equalization method flow chart that Fig. 3 provides for the embodiment of the present invention;
The load balancing that Fig. 4 provides for the embodiment of the present invention can application scenarios schematic diagram;
The base station schematic diagram that Fig. 5 provides for the embodiment of the present invention.
Embodiment
The embodiment of the present invention provides a kind of load equalization method and base station, selection is carried out behind the target adjacent area of load balancing, determine respectively to the number of users of each target adjacent area equilibrium, again according to the balanced user list of determining according to customer charge in advance, the A4 that the user of respective numbers is configured to the frequency of respective objects adjacent area measures, finally will report the user equilibrium of A4 measurement result to corresponding target adjacent area, make it possible to as far as possible the larger user equilibrium of load to adjacent area, and for each, being configured A4 respectively measures, pointed, when reporting of user A4 measurement result, explanation is to this user, the signal of the target adjacent area that A4 measures is better than the signal of Serving cell, so this user equilibrium is arrived to corresponding target adjacent area, can to load balancing, control preferably, reduce table tennis balanced, the appearance of the phenomenons such as frequent switching.
As shown in Figure 3, the load equalization method that the embodiment of the present invention provides, comprising:
Step S301, determine when Serving cell reaches load balancing condition, according to the load condition of adjacent area, from thering is with Serving cell the target adjacent area that overlapping covered adjacent area, load balancing is carried out in selection;
Step S302, according to the load of each target adjacent area, determine to the number of users of each target adjacent area equilibrium;
Step S303, according to the balanced user list of determining according to customer charge in advance, the A4 that the user of respective numbers is configured to the frequency of respective objects adjacent area measures, A4 is measured as and measures Serving cell signal and neighboring area signal, and reports A4 measurement result when neighboring area signal is better than setting thresholding;
Step S304, will report the user equilibrium of A4 measurement result to corresponding target adjacent area.
Because base station is measured for each target neighbor cell configuration A4 respectively, pointed, when reporting of user A4 measurement result, explanation is to this user, the signal of the target adjacent area that A4 measures is better than the signal of Serving cell, so this user equilibrium, to corresponding target adjacent area, can be controlled load balancing preferably, is reduced the appearance of the phenomenons such as balanced, the frequent switching of table tennis.
Now, base station is measured the A4 of the frequency of user configured respective objects adjacent area, and the A4 that is generally load balancing measures, that is, what this A4 measured is former because load balancing.
The application scenarios of this load equalization method is not limited to the situation that only has to have overlapping covered adjacent area, can have a plurality of overlapping covered adjacent areas that have, and for example, can be applied in scene as shown in Figure 4.
Further, for the phenomenon that prevents from rattling balanced occurs, in step S301, determine when Serving cell reaches load balancing condition, according to the load condition of adjacent area, from thering is with Serving cell the target adjacent area that overlapping covered adjacent area, load balancing is carried out in selection, specifically comprise:
Determine when Serving cell reaches load balancing condition, the adjacent area of selecting itself and the load difference with overlapping covered adjacent area to reach setting thresholding is target adjacent area.
Can be optimized the strategy of difference threshold "or", first judge the direction of community high load capacity, then according to the load of this direction with there is the difference of load of this direction of overlapping covered adjacent area, judge whether to carry out to this adjacent area equilibrium.
Concrete judgment principle can be as shown in table 1:
Table 1 Target cell judgment principle
| Serving cell high load capacity direction | With comparison direction under the difference threshold "or" strategy of Target cell |
| Up high load capacity | More up difference threshold |
| Descending high load capacity | More descending difference threshold |
| Uplink and downlink are high load capacity simultaneously | Up, descending difference threshold has a direction to meet |
Now, in step S301, determine when Serving cell reaches load balancing condition, the adjacent area of selecting itself and the load difference with overlapping covered adjacent area to reach setting thresholding is target adjacent area, specifically comprises:
Determine when Serving cell down direction reaches load balancing condition, selecting itself and the adjacent area that the downlink load difference with overlapping covered adjacent area reaches the first thresholding is target adjacent area;
Determine when Serving cell up direction reaches load balancing condition, selecting itself and the adjacent area that the uplink load difference with overlapping covered adjacent area reaches the second thresholding is target adjacent area;
Determine when uplink and downlink direction in Serving cell all reaches load balancing condition, select itself and the downlink load difference with overlapping covered adjacent area to reach the first thresholding or itself and adjacent area that the uplink load difference with overlapping covered adjacent area reaches the second thresholding is target adjacent area.
Further, in order to reach a plurality of with covering adjacent area after adopting balance policy, reach the effect of each minizone load balancing, when Yi Ge community reaches high load capacity, balanced load process need considers that this community is to each eligible load size with covering adjacent area equilibrium, can determine to the load of each target adjacent area equilibrium and be no more than Serving cell when 1/2nd of preload and this current load difference in target adjacent area, now, in step S302, according to the load of each target adjacent area, determine to the number of users of each target adjacent area equilibrium, specifically comprise:
To each target adjacent area, determining need to be to the load of this target adjacent area equilibrium, and this load is no more than Serving cell when 1/2nd of preload and this current load difference in target adjacent area;
Determine that needing balanced number of users is the minimum number that reaches the product of this load and preset proportion.
Wherein, preset proportion is in order to guarantee that target adjacent area can have part surplus to receive the user of follow-up access, this ratio can be set according to actual conditions, under extreme case, this ratio can be set as 100%, receive the balanced user who comes, or this ratio can be set as 0%, the user who does not receive equilibrium to come with all strength.
Preferably, the embodiment of the present invention provides a kind of and determines to the method for the load of this target adjacent area equilibrium, now, to each target adjacent area, determining need to be to the load of this target adjacent area equilibrium, this load is no more than Serving cell when 1/2nd of preload and this current load difference in target adjacent area, specifically comprises:
To each target adjacent area, determine to be to the load of this target adjacent area equilibrium:
Wherein, m is target adjacent area number, and Ls represents the load of Serving cell, and Ln_i is the load of i target adjacent area; Ln_j is the load of the target adjacent area of current judgement.
Further, when configuration A4 measures, can consider user's position and user self load, consider Target cell to this user's coverage condition and consider to reach equilibrium object fast and effectively by the larger user of the load of balanced high load capacity direction, reduce drop rate;
Choosing user's stage realizes by safeguarding a balanced user list the consideration of above-mentioned 2 factors, in list, by taking into account user A3 positional information measurement reporting information, user's position is considered, now, this equilibrium user list is: by reporting in A3 positional information adjacent area to have the user of Target cell to come list according to the descending order of load in the high load capacity direction of Qi community, start; Again other users are sorted backward successively according to the identical comparison principle of customer charge.
In order to make load balancing more efficient, can be when configuration A4 measures, A3 measurement report with reference to reporting of user, now, in step S303, according to the balanced user list of determining according to customer charge in advance, the A4 that the user of respective numbers is configured to the frequency of respective objects adjacent area measures, and specifically comprises:
According to customer charge order from big to small, to reporting adjacent area in the user of A3 measurement report, be that the A4 that the user of target adjacent area configures the frequency of respective objects adjacent area measures;
When the number of users of measuring as the A4 of the frequency of certain target adjacent area of configuration is less than the determined number of users to this target adjacent area equilibrium, never report in the user of A3 measurement report, the A4 that according to customer charge order from big to small, user is configured the frequency of respective objects adjacent area measures, until configure the number of users that the A4 of the frequency of this target adjacent area measures, reaches the determined number of users to this target adjacent area equilibrium.
For example, the step that load balancing is carried out in base station for the scene shown in Fig. 4, CellA(community A) comprises:
Step 1: judge successively its with cover adjacent area CellB, CellC difference threshold comparison, choose target adjacent area (supposing that Liang Ge community all meets difference threshold condition);
Step 2: calculating CellA needs respectively balanced number of users to calculating Xiang Liang community after CellB and CellC need respectively balanced load size and preset proportion, as to balanced m the user of CellB, to n user of CellC equilibrium;
Step 3: according to balanced user list, preferential to select to report adjacent area in A3 positional information measurement report be that the user of CellB, CellC carries out A4 and measures configuration; If the user to CellB equilibrium who selects is not enough m or to the user of CellC equilibrium not enough n, need to be from balanced user list according to load is descending, chooses other users and configure together A4(and meet that finally to choose number of users be m+n).
Step 4: reporting of user A4 triggers user and switches.In epicycle balancing procedure, for the user who reports A4, balanced front m user to CellB and to front n the user of CellC only.
Step 5: load balancing cycle timer is again overtime, enters next round load balancing process.
In order further to prevent the generation of pingpang handoff, the method also comprises:
The user who is switched to Serving cell by load balancing from other community is carried out to mark, in setting-up time, avoid the user of institute's mark to switch go back to cell-of-origin.
For be switched to the user of Serving cell by load balancing, if desired by load balancing, switch go back to cell-of-origin, its configuration A4 is not measured.
Now, according to the balanced user list of determining according to customer charge in advance, when the A4 that the user of respective numbers is configured to the frequency of respective objects adjacent area measures, avoid the A4 that the mark user of Yu Qi cell-of-origin, target adjacent area is configured to the frequency of this target adjacent area to measure.
Further, when user's measurement of institute's mark reports request to switch go back to cell-of-origin, also comprise:
If the priority of frequency that this user is switched to Serving cell, does not configure A4 to this user and measures for switching back the priority of the frequency of cell-of-origin higher than this, this A4 measurements is generally mobility reason A4 measurement;
If the priority of frequency that this user is switched to Serving cell for switching back the priority of the frequency of cell-of-origin, is only switched go back to cell-of-origin by this user in Serving cell spectrum efficiency during lower than default thresholding lower than this.
The embodiment of the present invention is also corresponding provides a kind of base station, as shown in Figure 5, comprising:
Determining unit 502, for according to the load of each target adjacent area, determines to the number of users of each target adjacent area equilibrium;
Further, selected cell 501 specifically for:
Determine when Serving cell reaches load balancing condition, the adjacent area of selecting itself and the load difference with overlapping covered adjacent area to reach setting thresholding is target adjacent area.
Preferably, selected cell 501 specifically for:
Determine when Serving cell down direction reaches load balancing condition, selecting itself and the adjacent area that the downlink load difference with overlapping covered adjacent area reaches the first thresholding is target adjacent area;
Determine when Serving cell up direction reaches load balancing condition, selecting itself and the adjacent area that the uplink load difference with overlapping covered adjacent area reaches the second thresholding is target adjacent area;
Determine when uplink and downlink direction in Serving cell all reaches load balancing condition, select itself and the downlink load difference with overlapping covered adjacent area to reach the first thresholding or itself and adjacent area that the uplink load difference with overlapping covered adjacent area reaches the second thresholding is target adjacent area.
Further, determining unit 502 specifically for:
To each target adjacent area, determining need to be to the load of this target adjacent area equilibrium, and this load is no more than Serving cell when 1/2nd of preload and this current load difference in target adjacent area;
Determine that needing balanced number of users is the minimum number that reaches the product of this load and preset proportion.
Further, determining unit 502 is to each target adjacent area, and determining need to be to the load of this target adjacent area equilibrium, and this load is no more than Serving cell when 1/2nd of preload and this current load difference in target adjacent area, specifically comprises:
To each target adjacent area, determine to be to the load of this target adjacent area equilibrium:
Wherein, m is target adjacent area number, and Ls represents the load of Serving cell, and Ln_i is the load of i target adjacent area; Ln_j is the load of the target adjacent area of current judgement.
Preferably, dispensing unit 503 specifically for:
According to customer charge order from big to small, to reporting adjacent area in the user of A3 measurement report, be that the A4 that the user of target adjacent area configures the frequency of respective objects adjacent area measures;
When the number of users of measuring as the A4 of the frequency of certain target adjacent area of configuration is less than the determined number of users to this target adjacent area equilibrium, never report in the user of A3 measurement report, the A4 that according to customer charge order from big to small, user is configured the frequency of respective objects adjacent area measures, until configure the number of users that the A4 of the frequency of this target adjacent area measures, reaches the determined number of users to this target adjacent area equilibrium.
Further, balanced unit 504 also for:
The user who is switched to Serving cell by load balancing from other community is carried out to mark, in setting-up time, avoid the user of institute's mark to switch go back to cell-of-origin.
Further, dispensing unit 503 also for:
According to the balanced user list of determining according to customer charge in advance, when the A4 that the user of respective numbers is configured to the frequency of respective objects adjacent area measures, avoid the A4 that the mark user of Yu Qi cell-of-origin, target adjacent area is configured to the frequency of this target adjacent area to measure.
Preferably, this base station also comprises:
Processing unit, while reporting request to switch go back to cell-of-origin for the user's measurement when institute's mark, if the priority of frequency that this user is switched to Serving cell higher than this for switching back the priority of the frequency of cell-of-origin, this user not being configured to A4 measures, if the priority of frequency that this user is switched to Serving cell for switching back the priority of the frequency of cell-of-origin, is only switched go back to cell-of-origin by this user in Serving cell spectrum efficiency during lower than default thresholding lower than this.
The embodiment of the present invention also provides a kind of base station, comprising:
Processor, while being configured to reach load balancing condition for definite Serving cell, according to the load condition of adjacent area, from having with Serving cell the target adjacent area that overlapping covered adjacent area, load balancing is carried out in selection; According to the load of each target adjacent area, determine to the number of users of each target adjacent area equilibrium; According to the balanced user list of determining according to customer charge in advance, the A4 that the user of respective numbers is configured to the frequency of respective objects adjacent area measures, A4 is measured as and measures Serving cell signal and neighboring area signal, and reports A4 measurement result when neighboring area signal is better than setting thresholding; To report the user equilibrium of A4 measurement result to corresponding target adjacent area.
This processor can also be configured to for realizing other function of the load-balancing method that the embodiment of the present invention provides.
When this processor carries out the transmitting-receiving of corresponding message, can be by transmitting-receiving Interface realization.
The embodiment of the present invention provides a kind of load equalization method and base station, selection is carried out behind the target adjacent area of load balancing, determine respectively to the number of users of each target adjacent area equilibrium, again according to the balanced user list of determining according to customer charge in advance, the A4 that the user of respective numbers is configured to the frequency of respective objects adjacent area measures, finally will report the user equilibrium of A4 measurement result to corresponding target adjacent area, make it possible to as far as possible the larger user equilibrium of load to adjacent area, and for each, being configured A4 respectively measures, pointed, when reporting of user A4 measurement result, explanation is to this user, the signal of the target adjacent area that A4 measures is better than the signal of Serving cell, so this user equilibrium is arrived to corresponding target adjacent area, can to load balancing, control preferably, reduce table tennis balanced, the appearance of the phenomenons such as frequent switching.
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 complete hardware implementation example, implement software example or in conjunction with the form of the embodiment of software and hardware aspect completely.And the present invention can adopt the form that wherein includes the upper computer program of implementing of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code one or more.
The present invention is with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present invention, equipment (system) and computer program.Should understand can be in computer program instructions realization flow figure and/or block diagram each flow process and/or the flow process in square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction of carrying out by the processor of computer or other programmable data processing device is produced for realizing the device in the function of flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame on computer or other programmable devices.
Although described the preferred embodiments of the present invention, once those skilled in the art obtain the basic creative concept of cicada, can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (18)
1. a load equalization method, is characterized in that, comprising:
Determine when Serving cell reaches load balancing condition, according to the load condition of adjacent area, from thering is with Serving cell the target adjacent area that overlapping covered adjacent area, load balancing is carried out in selection;
According to the load of each target adjacent area, determine to the number of users of each target adjacent area equilibrium;
According to the balanced user list of determining according to customer charge in advance, the A4 that the user of respective numbers is configured to the frequency of respective objects adjacent area measures, described A4 is measured as and measures Serving cell signal and neighboring area signal, and reports A4 measurement result when neighboring area signal is better than setting thresholding;
To report the user equilibrium of A4 measurement result to corresponding target adjacent area.
2. the method for claim 1, it is characterized in that, when described definite Serving cell reaches load balancing condition, according to the load condition of adjacent area, from thering is with Serving cell the target adjacent area that overlapping covered adjacent area, load balancing is carried out in selection, specifically comprise:
Determine when Serving cell reaches load balancing condition, the adjacent area of selecting itself and the load difference with overlapping covered adjacent area to reach setting thresholding is target adjacent area.
3. method as claimed in claim 2, is characterized in that, when described definite Serving cell reaches load balancing condition, the adjacent area of selecting itself and the load difference with overlapping covered adjacent area to reach setting thresholding is target adjacent area, specifically comprises:
Determine when Serving cell down direction reaches load balancing condition, selecting itself and the adjacent area that the downlink load difference with overlapping covered adjacent area reaches the first thresholding is target adjacent area;
Determine when Serving cell up direction reaches load balancing condition, selecting itself and the adjacent area that the uplink load difference with overlapping covered adjacent area reaches the second thresholding is target adjacent area;
Determine when uplink and downlink direction in Serving cell all reaches load balancing condition, select itself and the downlink load difference with overlapping covered adjacent area to reach the first thresholding or itself and adjacent area that the uplink load difference with overlapping covered adjacent area reaches the second thresholding is target adjacent area.
4. the method for claim 1, is characterized in that, according to the load of each target adjacent area, determines to the number of users of each target adjacent area equilibrium, specifically comprises:
To each target adjacent area, determining need to be to the load of this target adjacent area equilibrium, and this load is no more than Serving cell when 1/2nd of preload and this current load difference in target adjacent area;
Determine that needing balanced number of users is the minimum number that reaches the product of this load and preset proportion.
5. method as claimed in claim 4, it is characterized in that, described to each target adjacent area, determining need to be to the load of this target adjacent area equilibrium, this load is no more than Serving cell when 1/2nd of preload and this current load difference in target adjacent area, specifically comprises:
To each target adjacent area, determine to be to the load of this target adjacent area equilibrium:
Wherein, m is target adjacent area number, and Ls represents the load of Serving cell, and Ln_i is the load of i target adjacent area; Ln_j is the load of the target adjacent area of current judgement.
6. the method for claim 1, is characterized in that, the described balanced user list according to determining according to customer charge in advance, and the A4 that the user of respective numbers is configured to the frequency of respective objects adjacent area measures, and specifically comprises:
According to customer charge order from big to small, to reporting adjacent area in the user of A3 measurement report, be that the A4 that the user of target adjacent area configures the frequency of respective objects adjacent area measures;
When the number of users of measuring as the A4 of the frequency of certain target adjacent area of configuration is less than the determined number of users to this target adjacent area equilibrium, never report in the user of A3 measurement report, the A4 that according to customer charge order from big to small, user is configured the frequency of respective objects adjacent area measures, until configure the number of users that the A4 of the frequency of this target adjacent area measures, reaches the determined number of users to this target adjacent area equilibrium.
7. the method for claim 1, is characterized in that, also comprises:
The user who is switched to Serving cell by load balancing from other community is carried out to mark, in setting-up time, avoid the user of institute's mark to switch go back to cell-of-origin.
8. method as claimed in claim 7, it is characterized in that, the described balanced user list according to determining according to customer charge in advance, when the A4 that the user of respective numbers is configured to the frequency of respective objects adjacent area measures, avoid the A4 that the mark user of Yu Qi cell-of-origin, target adjacent area is configured to the frequency of this target adjacent area to measure.
9. method as claimed in claim 7, is characterized in that, when user's measurement of institute's mark reports request to switch go back to cell-of-origin, also comprises:
If the priority of frequency that this user is switched to Serving cell, does not configure A4 to this user and measures for switching back the priority of the frequency of cell-of-origin higher than this;
If the priority of frequency that this user is switched to Serving cell for switching back the priority of the frequency of cell-of-origin, is only switched go back to cell-of-origin by this user in Serving cell spectrum efficiency during lower than default thresholding lower than this.
10. a base station, is characterized in that, comprising:
Selected cell, while reaching load balancing condition for definite Serving cell, according to the load condition of adjacent area, from having with Serving cell the target adjacent area that overlapping covered adjacent area, load balancing is carried out in selection;
Determining unit, for according to the load of each target adjacent area, determines to the number of users of each target adjacent area equilibrium;
Dispensing unit, for the balanced user list according to determining according to customer charge in advance, the A4 that the user of respective numbers is configured to the frequency of respective objects adjacent area measures, described A4 is measured as and measures Serving cell signal and neighboring area signal, and reports A4 measurement result when neighboring area signal is better than setting thresholding;
Balanced unit, for reporting the user equilibrium of A4 measurement result to corresponding target adjacent area.
11. base stations as claimed in claim 10, is characterized in that, described selected cell specifically for:
Determine when Serving cell reaches load balancing condition, the adjacent area of selecting itself and the load difference with overlapping covered adjacent area to reach setting thresholding is target adjacent area.
12. base stations as claimed in claim 11, is characterized in that, described selected cell specifically for:
Determine when Serving cell down direction reaches load balancing condition, selecting itself and the adjacent area that the downlink load difference with overlapping covered adjacent area reaches the first thresholding is target adjacent area;
Determine when Serving cell up direction reaches load balancing condition, selecting itself and the adjacent area that the uplink load difference with overlapping covered adjacent area reaches the second thresholding is target adjacent area;
Determine when uplink and downlink direction in Serving cell all reaches load balancing condition, select itself and the downlink load difference with overlapping covered adjacent area to reach the first thresholding or itself and adjacent area that the uplink load difference with overlapping covered adjacent area reaches the second thresholding is target adjacent area.
13. base stations as claimed in claim 10, is characterized in that, described determining unit specifically for:
To each target adjacent area, determining need to be to the load of this target adjacent area equilibrium, and this load is no more than Serving cell when 1/2nd of preload and this current load difference in target adjacent area;
Determine that needing balanced number of users is the minimum number that reaches the product of this load and preset proportion.
14. base stations as claimed in claim 13, it is characterized in that, described determining unit is to each target adjacent area, and determining need to be to the load of this target adjacent area equilibrium, this load is no more than Serving cell when 1/2nd of preload and this current load difference in target adjacent area, specifically comprises:
To each target adjacent area, determine to be to the load of this target adjacent area equilibrium:
Wherein, m is target adjacent area number, and Ls represents the load of Serving cell, and Ln_i is the load of i target adjacent area; Ln_j is the load of the target adjacent area of current judgement.
15. base stations as claimed in claim 10, is characterized in that, described dispensing unit specifically for:
According to customer charge order from big to small, to reporting adjacent area in the user of A3 measurement report, be that the A4 that the user of target adjacent area configures the frequency of respective objects adjacent area measures;
When the number of users of measuring as the A4 of the frequency of certain target adjacent area of configuration is less than the determined number of users to this target adjacent area equilibrium, never report in the user of A3 measurement report, the A4 that according to customer charge order from big to small, user is configured the frequency of respective objects adjacent area measures, until configure the number of users that the A4 of the frequency of this target adjacent area measures, reaches the determined number of users to this target adjacent area equilibrium.
16. base stations as claimed in claim 10, is characterized in that, described balanced unit also for:
The user who is switched to Serving cell by load balancing from other community is carried out to mark, in setting-up time, avoid the user of institute's mark to switch go back to cell-of-origin.
17. base stations as claimed in claim 16, is characterized in that, described dispensing unit also for:
According to the balanced user list of determining according to customer charge in advance, when the A4 that the user of respective numbers is configured to the frequency of respective objects adjacent area measures, avoid the A4 that the mark user of Yu Qi cell-of-origin, target adjacent area is configured to the frequency of this target adjacent area to measure.
18. base stations as claimed in claim 16, is characterized in that, also comprise:
Processing unit, while reporting request to switch go back to cell-of-origin for the user's measurement when institute's mark, if the priority of frequency that this user is switched to Serving cell higher than this for switching back the priority of the frequency of cell-of-origin, this user not being configured to A4 measures, if the priority of frequency that this user is switched to Serving cell for switching back the priority of the frequency of cell-of-origin, is only switched go back to cell-of-origin by this user in Serving cell spectrum efficiency during lower than default thresholding lower than this.
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| CN201310745659.5A CN103686857A (en) | 2013-12-30 | 2013-12-30 | Load balancing method and base station |
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| CN111356179A (en) * | 2018-12-21 | 2020-06-30 | 中兴通讯股份有限公司 | Load balancing method, device, equipment and storage medium |
| CN111918336A (en) * | 2019-05-07 | 2020-11-10 | 中国移动通信集团湖北有限公司 | Method, device, base station and computer storage medium for determining distribution cell |
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