CN101977404B - Load balancing method and system - Google Patents
Load balancing method and system Download PDFInfo
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- CN101977404B CN101977404B CN201010523886.XA CN201010523886A CN101977404B CN 101977404 B CN101977404 B CN 101977404B CN 201010523886 A CN201010523886 A CN 201010523886A CN 101977404 B CN101977404 B CN 101977404B
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Abstract
The invention discloses a load balancing method and system, which are used for realizing load balancing among an inner circle, an outer circle and an adjacent area and improving the utilization rate of wireless resources of an air interface and the system throughput. The load balancing method comprises the following steps: when the load balancing period comes, if determining the load balancing conditions of the inner and outer circles are met and terminals meeting the inner and outer circles switching condition exist, selecting a terminal meeting the inner and outer circles switching condition and judging whether the terminal meets the inner and outer circles acceptance judgment condition; and if the terminal meets the inner and outer circles acceptance judgment condition, switching the selected the terminal conforming to the inner and outer circles switching condition between the inner and outer circles.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of load-balancing method and system.
Background technology
Partial frequency multiplexing (FFR, Fractional Frequency Reuse) is a kind of technology that improves the availability of frequency spectrum, and in general, FFR technology relates to interior ring and the outer shroud of community.When there is multiple user in system, system needs comprehensive various factors to carry out load balance optimization.
With respect to wired communication system, wireless communication system is more responsive to external environment condition, and along with the movement of terminal, signal quality can change, and the available bandwidth resources of sector and loading condition also can be along with variations.
But, prior art does not have the RST of integrated terminal, with the resource service condition of interior ring, outer shroud and adjacent area, determine whether to carry out the load balancing between interior ring, outer shroud and adjacent area, cause the wireless resource utility efficiency of air interface and throughput of system all lower.
Summary of the invention
The embodiment of the present invention provides a kind of load-balancing method and system, in order to realize the load balancing between interior ring, outer shroud and adjacent area, improves wireless resource utility efficiency and the throughput of system of air interface.
A kind of load-balancing method that the embodiment of the present invention provides comprises:
When the cycle of load balancing arrives, if determine, meet inner and outer ring load balancing condition, and have the terminal that meets inner and outer ring switching condition, choose and meet the terminal of inner and outer ring switching condition and judge whether this terminal meets inner and outer ring acceptance judging condition;
When meeting inner and outer ring acceptance judging condition, the terminal that meets inner and outer ring switching condition of choosing is carried out to the switching between inner and outer ring.
A kind of load-balancing method that the embodiment of the present invention provides comprises:
When cycle of load balancing arrives, if determine, meet adjacent area load balancing condition, and have the terminal that meets adjacent area switching condition, choose terminal this terminal of anticipation of meeting adjacent area switching condition and whether meet adjacent area acceptance judging condition;
When meeting adjacent area acceptance judging condition, the terminal that meets adjacent area switching condition of choosing is carried out to the switching between adjacent area.
A kind of SiteServer LBS that the embodiment of the present invention provides comprises:
Judging unit, for when the cycle of load balancing arrives, if determine and meet inner and outer ring load balancing condition, and there is the terminal that meets inner and outer ring switching condition, choose and meet the terminal of inner and outer ring switching condition and judge whether this terminal meets inner and outer ring acceptance judging condition;
Switch unit, for when meeting inner and outer ring acceptance judging condition, to choose meet inner and outer ring switching condition terminal carry out the switching between inner and outer ring.
A kind of SiteServer LBS that the embodiment of the present invention provides comprises:
Judging unit, for when the cycle of load balancing arrives, if determine, meet adjacent area load balancing condition, and have the terminal that meets adjacent area switching condition, choose terminal this terminal of anticipation of meeting adjacent area switching condition and whether meet adjacent area acceptance judging condition;
Switch unit, for when meeting adjacent area acceptance judging condition, carries out the switching between adjacent area to the terminal that meets adjacent area switching condition of choosing.
The embodiment of the present invention, when the cycle of load balancing arrives, if determine and meet inner and outer ring load balancing condition, and there is the terminal that meets inner and outer ring switching condition, choose and meet the terminal of inner and outer ring switching condition and judge whether this terminal meets inner and outer ring acceptance judging condition; When meeting inner and outer ring acceptance judging condition, to choose meet inner and outer ring switching condition terminal carry out the switching between inner and outer ring, thereby realized the load balancing between inner and outer ring, improve wireless resource utility efficiency and the throughput of system of air interface.
The embodiment of the present invention, when the cycle of load balancing arrives, if determine, meet adjacent area load balancing condition, and have the terminal that meets adjacent area switching condition, choose terminal this terminal of anticipation of meeting adjacent area switching condition and whether meet adjacent area acceptance judging condition; When meeting adjacent area acceptance judging condition, the terminal that meets adjacent area switching condition of choosing is carried out to adjacent area switching, thereby realized the load balancing between adjacent area, improve wireless resource utility efficiency and the throughput of system of air interface.
Accompanying drawing explanation
The overall procedure schematic diagram of a kind of load-balancing method that Fig. 1 provides for the embodiment of the present invention;
The idiographic flow schematic diagram of a kind of load-balancing method that Fig. 2 provides for the embodiment of the present invention;
The overall procedure schematic diagram of a kind of load-balancing method that Fig. 3 provides for the embodiment of the present invention;
The idiographic flow schematic diagram of a kind of load-balancing method that Fig. 4 provides for the embodiment of the present invention;
The structural representation of a kind of SiteServer LBS that Fig. 5 provides for the embodiment of the present invention;
The structural representation of a kind of SiteServer LBS that Fig. 6 provides for the embodiment of the present invention.
Embodiment
The embodiment of the present invention provides a kind of load-balancing method and system, in order to realize the load balancing between interior ring, outer shroud and adjacent area, improves wireless resource utility efficiency and the throughput of system of air interface.
The object of the embodiment of the present invention is to provide a kind of load balancing scheme based on FFR.
The load balancing scheme based on FFR that the embodiment of the present invention provides, the system that is characterised in that can be closed RST and the interior ring of terminal by dynamic ground heddle, the resource service condition of outer shroud and adjacent area, determine whether to carry out interior ring, load balancing between outer shroud and adjacent area, load balancing is based on RRM (RRM, Radio Resource Management) mechanism, by RRM mechanism, system can be obtained ring in system, the present situation of outer shroud and adjacent area resource, and according to interior ring, the actual situation cycle triggering load balancing that takies of outer shroud and adjacent area resource, utilance and the throughput of system of interface-free resources have greatly been improved.
The load balancing scheme based on FFR that the embodiment of the present invention provides, comprises the load balancing two parts between load balancing and the adjacent area between interior ring, outer shroud.
The technical scheme embodiment of the present invention being provided below in conjunction with accompanying drawing describes.
Referring to Fig. 1, the load-balancing method between a kind of interior ring, outer shroud that the embodiment of the present invention provides totally comprises step:
S101, when cycle of load balancing arrives, if determine and meet inner and outer ring load balancing condition, and there is the terminal that meets inner and outer ring switching condition, choose and meet the terminal of inner and outer ring switching condition and judge whether this terminal meets inner and outer ring acceptance judging condition.
S102, when meeting inner and outer ring acceptance judging condition, the terminal that meets inner and outer ring switching condition of choosing is carried out to the switching between inner and outer ring.
Preferably, described inner and outer ring load balancing condition is:
Terminal is changed to the load balancing condition of outer shroud from interior ring cutting, or terminal is switched to the load balancing condition of interior ring from outer shroud.
Preferably, terminal is changed to the load balancing condition of outer shroud from interior ring cutting, being comprised:
Interior ring wireless bandwidth time interval resource occupancy is greater than interior ring load balancing and exits thresholding;
Outer shroud wireless bandwidth time interval resource occupancy is less than outer shroud load balancing and enters thresholding.
Preferably, terminal is switched to the load balancing condition of interior ring from outer shroud, comprises:
Outer shroud wireless bandwidth time interval resource occupancy is greater than outer shroud load balancing and exits thresholding;
Interior ring wireless bandwidth time interval resource occupancy is less than interior ring load balancing and enters thresholding.
Preferably, when meeting when terminal is changed to the load balancing condition of outer shroud from interior ring cutting, the step of choosing the terminal that meets inner and outer ring switching condition comprises:
Choose the minimum interior ring terminal of down receiving signal intensity indication RSSI.
Preferably, when meeting when terminal is switched to the load balancing condition of interior ring from outer shroud, determining, exist the step of the terminal that meets inner and outer ring switching condition to comprise:
As the outer shroud CINR of the highest outer shroud terminal of Carrier-to-Interface ratio CINR, be greater than interior ring CINR exit thresholding and CINR table tennis thresholding and, determine that existence meets the terminal of inner and outer ring switching condition.
Preferably, the method also comprises:
During terminal initial access, if exist with the multicarrier adjacent area covering, obtaining the inner and outer ring load information of adjacent area by RRM RRM, is the carrier frequency that this terminal is selected access according to the inner and outer ring load information of adjacent area.
Referring to Fig. 2, the load-balancing method between a kind of interior ring, outer shroud that the embodiment of the present invention provides specifically comprises step:
S201, system enable FFR, when monitoring the system load balancing cycle while arriving, trigger load balancing flow process, start to perform step S202.
S202, according to the resource service condition of inner and outer ring, judge that system is current and whether meet the inner and outer ring load balancing condition of carrying out.
Particularly, the condition that load balancing control is initiated to select some terminal (MS, Mobile Station) to change to outer shroud by interior ring cutting comprises:
Ring load balancing exits thresholding T1 (for example 80%) in interior ring time slot (Slot) resources occupation rate >; And,
Outer shroud Slot resources occupation rate < outer shroud load balancing enters thresholding T2 (for example 50%).
The condition that load balancing control is initiated to select some terminal MS to be switched to interior ring by outer shroud comprises:
Outer shroud Slot resources occupation rate > outer shroud load balancing exits thresholding T3 (for example 90%); And,
Ring load balancing enters thresholding T4 (for example 70%) in interior ring Slot resources occupation rate <.
If do not meet above-mentioned condition, wait for load balancing next time, return to execution step S201; If meet, perform step S203.
S203, check in system whether have the terminal MS that meets inner and outer ring switching condition, actual conditions is as follows:
In the time of need to selecting terminal MS to change to outer shroud from interior ring cutting:
Can select down receiving signal intensity indication (RSSI, Receive Signal Strength Indicator) minimum terminal to be switched to outer shroud.
In the time of need to selecting terminal MS to be switched to interior ring from outer shroud:
Can select the highest outer shroud terminal of Carrier-to-Interface ratio (CINR, Carrier-to-Interference-and-Noise Ratio) to be switched to interior ring, and meet:
In the outer shroud CINR > of this terminal, ring CINR exits thresholding (for example 10 or 15)+CINR table tennis thresholding delta (for example 5 or 6).
If the terminal not meeting the demands in system, waits for load balancing next time, return to execution step S201; If had, execution step S204.
Wherein, the order of step S202 and S203 can be exchanged.
S204, from the current terminal that meets inner and outer ring switching condition, choose a terminal MS, execution step S205.
S205, system inner and outer ring acceptance judging module, utilize situation according to wireless bandwidth time interval resource, judges whether to receive this MS.
Particularly, confirm whether the Slot resource of inner and outer ring meets the requirement of terminal MS, during acceptance judging according to non-multiple-input and multiple-output B array (MIMOB, Multiple Input Multiple Output Matrix B) mode carry out acceptance judging, if can not receive this terminal MS, wait for load balancing next time, return to execution step S201; If received, pass through, perform step S206;
S206, the MS choosing is carried out to inner and outer ring switching.
Referring to Fig. 3, the load-balancing method between a kind of adjacent area that the embodiment of the present invention provides totally comprises step:
S301, when cycle of load balancing arrives, if determine, meet adjacent area load balancing condition, and have the terminal that meets adjacent area switching condition, choose terminal this terminal of anticipation of meeting adjacent area switching condition and whether meet adjacent area acceptance judging condition.
S302, when meeting adjacent area acceptance judging condition, the terminal that meets adjacent area switching condition of choosing is carried out to the switching between adjacent area.
Preferably, if current sector comprises real time business terminal, described adjacent area load balancing condition comprises:
The outer shroud wireless bandwidth time interval resource utilance of current sector base stations is greater than the light thresholding of the first load balancing;
The outer shroud wireless bandwidth time interval resource utilance of neighbor base station is less than the heavy thresholding of the first load balancing;
The outer shroud wireless bandwidth time interval resource utilance of current sector base stations be greater than neighbor base station outer shroud wireless bandwidth time interval resource utilance and first table tennis thresholding and.
Preferably, if only include non-real-time service terminal in current sector, described adjacent area load balancing condition comprises:
The outer shroud wireless bandwidth time interval resource utilance of current sector base stations is greater than the light thresholding of the first load balancing;
The outer shroud wireless bandwidth time interval resource utilance of neighbor base station is less than the heavy thresholding of the first load balancing;
The outer shroud wireless bandwidth time interval resource utilance of current sector base stations be greater than neighbor base station outer shroud wireless bandwidth time interval resource utilance and first table tennis thresholding and;
The terminal number that accesses current sector base stations is greater than the light thresholding of the second load balancing;
The terminal number of access neighbor base station is less than the heavy thresholding of the second load balancing;
The terminal number that accesses current sector base stations be greater than access neighbor base station terminal number and second table tennis thresholding and.
Preferably, determine and exist the step of the terminal that meets adjacent area switching condition to comprise:
When the quantity of terminal of the current sector base stations of access is greater than preset value, determines and have the terminal that meets adjacent area switching condition.
Preferably, the method also comprises:
During terminal initial access, if exist with the multicarrier adjacent area covering, obtaining the inner and outer ring load information of adjacent area by RRM RRM, is the carrier frequency that this terminal is selected access according to the inner and outer ring load information of adjacent area.
Referring to Fig. 4, the load-balancing method between a kind of adjacent area that the embodiment of the present invention provides specifically comprises step:
S401, system enable FFR, when monitoring the system load balancing cycle while arriving, trigger load balancing flow process, start to perform step S402.
S402, by RRM mechanism, obtain the resource service condition of adjacent area, judge that system is current and whether meet adjacent area load balancing condition, specific as follows:
When only including real time business terminal in system, or both comprised when real time business terminal also comprises non-real-time service terminal, adjacent area load balancing condition comprises:
The light thresholding T5 of Slot resource utilization > the first load balancing of current sector base stations (for example 60%);
The heavy thresholding T6 of Slot resource utilization < the first load balancing of neighbor base station (for example 90%);
Slot resource utilization+the first table tennis thresholding the T7 of the Slot resource utilization > neighbor base station of current sector base stations (for example 10%).
When only including non-real-time service terminal in system, adjacent area load balancing condition comprises:
The light thresholding T5 of Slot resource utilization > the first load balancing of current sector base stations (for example 60%);
The heavy thresholding T6 of Slot resource utilization < the first load balancing of neighbor base station (for example 90%);
Slot resource utilization+the first table tennis thresholding the T7 of the Slot resource utilization > neighbor base station of current sector base stations (for example 10%);
Access the light thresholding T8 of terminal number > the second load balancing (for example 40) of current sector base stations;
The terminal number < heavy thresholding T9 of the second load balancing (for example 100) of access neighbor base station;
Access the terminal number+the second table tennis thresholding T10 (for example 20) of the terminal number > access neighbor base station of current sector base stations.
If do not meet above-mentioned adjacent area load balancing condition, wait for load balancing next time, return to execution step S401; If met, execution step S403.
S403, check whether to exist in system and meet the terminal MS that switch adjacent area.
For example, whether the terminal quantity in connecting system is greater than X (for example 10);
If do not met, wait for load balancing next time, return to execution step S401; Otherwise, execution step S404.
Wherein, the order of step S402 and S403 can be exchanged.
The terminal MS of S404, the terminal MS of choosing a CINR lower (for example, lower than a certain preset value) from the MS of current access system or RSSI lower (for example, lower than a certain preset value), execution step S405.
S405, system adjacent area acceptance judging module, utilize situation according to wireless bandwidth time interval resource, and whether anticipation can receive this MS; If can not receive, wait for load balancing next time, return to execution step S401.If can receive, perform step S406.
S406, the terminal MS of choosing is carried out to the switching between adjacent area.
Referring to Fig. 5, a kind of SiteServer LBS that the embodiment of the present invention provides comprises:
Judging unit 101, for when the cycle of load balancing arrives, if determine and meet inner and outer ring load balancing condition, and there is the terminal that meets inner and outer ring switching condition, choose and meet the terminal of inner and outer ring switching condition and judge whether this terminal meets inner and outer ring acceptance judging condition.
Preferably, described judging unit 101 comprises:
Whether cycle monitoring unit 201, arrived for the cycle of monitoring load equilibrium;
Inner and outer ring load balancing condition judgment unit 202, for when the cycle of load balancing arrives, determines whether to meet inner and outer ring load balancing condition; Wherein, described inner and outer ring load balancing condition is: terminal is changed to the load balancing condition of outer shroud from interior ring cutting, or terminal is switched to the load balancing condition of interior ring from outer shroud;
Whether inner and outer ring acceptance judging unit 204, for judging the terminal that meets inner and outer ring switching condition of choosing, meet inner and outer ring acceptance judging condition.
Preferably, described inner and outer ring load balancing condition judgment unit 202, whether that determines meets the load balancing condition of terminal being changed to outer shroud from interior ring cutting, comprising:
Interior ring wireless bandwidth time interval resource occupancy is greater than interior ring load balancing and exits thresholding;
Outer shroud wireless bandwidth time interval resource occupancy is less than outer shroud load balancing and enters thresholding.
Preferably, described inner and outer ring load balancing condition judgment unit 202, whether that determines meets the load balancing condition that terminal is switched to interior ring from outer shroud, comprising:
Outer shroud wireless bandwidth time interval resource occupancy is greater than outer shroud load balancing and exits thresholding;
Interior ring wireless bandwidth time interval resource occupancy is less than interior ring load balancing and enters thresholding.
Preferably, when meeting when terminal is changed to the load balancing condition of outer shroud from interior ring cutting, described terminal judges unit 203, chooses the minimum interior ring terminal of down receiving signal intensity indication RSSI.
Preferably, when meeting when terminal is switched to the load balancing condition of interior ring from outer shroud, described terminal judges unit 203, as the outer shroud CINR of the highest outer shroud terminal of Carrier-to-Interface ratio CINR, be greater than interior ring CINR exit thresholding and CINR table tennis thresholding and, determine that existence meets the terminal of inner and outer ring switching condition.
Preferably, this system also comprises:
Initial access processing unit, for when terminal initial accesses, if determine the multicarrier adjacent area existing with covering, by RRM RRM, obtain the inner and outer ring load information of adjacent area, for example resource utilization, number of users is the carrier frequency that this terminal is selected access according to the inner and outer ring load information of adjacent area.Thereby terminal is received on the carrier frequency that load is lighter as far as possible, reached the object of load balancing.
Referring to Fig. 6, a kind of SiteServer LBS that the embodiment of the present invention provides comprises:
Judging unit 301, for when the cycle of load balancing arrives, if determine, meet adjacent area load balancing condition, and have the terminal that meets adjacent area switching condition, choose terminal this terminal of anticipation of meeting adjacent area switching condition and whether meet adjacent area acceptance judging condition.
Switch unit 302, for when meeting adjacent area acceptance judging condition, carries out the switching between adjacent area to the terminal that meets adjacent area switching condition of choosing.
Preferably, described judging unit 301 comprises:
Whether cycle monitoring unit 401, arrived for the cycle of monitoring load equilibrium;
Load balancing condition judgment unit, adjacent area 402, for when the cycle of load balancing arrives, determine whether to meet adjacent area load balancing condition, wherein, if determine, current sector comprises real time business terminal, and described adjacent area load balancing condition comprises: the outer shroud wireless bandwidth time interval resource utilance of current sector base stations is greater than the light thresholding of the first load balancing; The outer shroud wireless bandwidth time interval resource utilance of neighbor base station is less than the heavy thresholding of the first load balancing; The outer shroud wireless bandwidth time interval resource utilance of current sector base stations be greater than neighbor base station outer shroud wireless bandwidth time interval resource utilance and first table tennis thresholding and;
Terminal judges unit 403, for when the cycle of load balancing arrives, determines whether to have the terminal that meets adjacent area switching condition, when existence meets the terminal of adjacent area switching condition, chooses the terminal that meets adjacent area switching condition;
Acceptance judging unit, adjacent area 404, whether the terminal that meets adjacent area switching condition of choosing for anticipation, meet adjacent area acceptance judging condition.
Preferably, load balancing condition judgment unit, described adjacent area 402, only includes non-real-time service terminal if determine in current sector, and described adjacent area load balancing condition comprises:
The outer shroud wireless bandwidth time interval resource utilance of current little fan base station is greater than the light thresholding of the first load balancing;
The outer shroud wireless bandwidth time interval resource utilance of neighbor base station is less than the heavy thresholding of the first load balancing;
The outer shroud wireless bandwidth time interval resource utilance of current sector base stations be greater than neighbor base station outer shroud wireless bandwidth time interval resource utilance and first table tennis thresholding and;
The terminal number that accesses current sector base stations is greater than the light thresholding of the second load balancing;
The terminal number of access neighbor base station is less than the heavy thresholding of the second load balancing;
The terminal number that accesses current sector base stations be greater than access neighbor base station terminal number and second table tennis thresholding and.
Preferably, described terminal judges unit 403, when the quantity of terminal of the current sector base stations of access is greater than preset value, determines and has the terminal that meets adjacent area switching condition.
Preferably, this system also comprises:
Initial access processing unit, for when terminal initial accesses, if determine the multicarrier adjacent area existing with covering, by RRM RRM, obtain the inner and outer ring load information of adjacent area, for example resource utilization, number of users is the carrier frequency that this terminal is selected access according to the inner and outer ring load information of adjacent area.Thereby terminal is received on the carrier frequency that load is lighter as far as possible, reached the object of load balancing.
In sum, the embodiment of the present invention provides a kind of load-balancing technique, makes system comprehensive various key factors load is reasonably balanced to interior ring, outer shroud or adjacent area, thereby avoids as far as possible occurring system congestion.Be that the channel situation of integrated terminal and the resource service condition of interior ring, outer shroud and adjacent area are dynamically carried out reasonably equilibrium to the load of system, at utmost improve user's satisfaction, guarantee the throughput of system, greatly improve the utilance of Radio Resource.
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, completely implement software example or the form in conjunction with the embodiment of software and hardware aspect.And the present invention can adopt the form at one or more upper computer programs of implementing of computer-usable storage medium (including but not limited to magnetic disc store and optical memory etc.) that wherein include computer usable program code.
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 by 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 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 that makes to carry out by the processor of computer or other programmable data processing device produces the device for realizing the function of specifying at flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.
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 specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple 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 specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame on computer or other programmable devices.
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-balancing method, is characterized in that, the method comprises:
When the cycle of load balancing arrives, if determine, meet inner and outer ring load balancing condition, and have the terminal that meets inner and outer ring switching condition, choose and meet the terminal of inner and outer ring switching condition and judge whether this terminal meets inner and outer ring acceptance judging condition;
When meeting inner and outer ring acceptance judging condition, the terminal that meets inner and outer ring switching condition of choosing is carried out to the switching between inner and outer ring;
Wherein, described inner and outer ring load balancing condition is:
Terminal is changed to the load balancing condition of outer shroud from interior ring cutting, or terminal is switched to the load balancing condition of interior ring from outer shroud;
The described load balancing condition of terminal being changed to outer shroud from interior ring cutting, comprising:
Interior ring wireless bandwidth time interval resource occupancy is greater than interior ring load balancing and exits thresholding;
Outer shroud wireless bandwidth time interval resource occupancy is less than outer shroud load balancing and enters thresholding.
2. method according to claim 1, is characterized in that, terminal is switched to the load balancing condition of interior ring from outer shroud, comprising:
Outer shroud wireless bandwidth time interval resource occupancy is greater than outer shroud load balancing and exits thresholding;
Interior ring wireless bandwidth time interval resource occupancy is less than interior ring load balancing and enters thresholding.
3. method according to claim 1, is characterized in that, when meeting when terminal is changed to the load balancing condition of outer shroud from interior ring cutting, the step of choosing the terminal that meets inner and outer ring switching condition comprises:
Choose the minimum interior ring terminal of down receiving signal intensity indication RSSI.
4. method according to claim 1 and 2, is characterized in that, when meeting when terminal is switched to the load balancing condition of interior ring from outer shroud, determining, exists the step of the terminal that meets inner and outer ring switching condition to comprise:
As the outer shroud CINR of the highest outer shroud terminal of Carrier-to-Interface ratio CINR, be greater than interior ring CINR exit thresholding and CINR table tennis thresholding and, determine that existence meets the terminal of inner and outer ring switching condition.
5. method according to claim 1 and 2, is characterized in that, the method also comprises:
During terminal initial access, if exist with the multicarrier adjacent area covering, obtaining the inner and outer ring load information of adjacent area by RRM RRM, is the carrier frequency that this terminal is selected access according to the inner and outer ring load information of adjacent area.
6. a load-balancing method, is characterized in that, the method comprises:
When cycle of load balancing arrives, if determine, meet adjacent area load balancing condition, and have the terminal that meets adjacent area switching condition, choose terminal this terminal of anticipation of meeting adjacent area switching condition and whether meet adjacent area acceptance judging condition;
When meeting adjacent area acceptance judging condition, the terminal that meets adjacent area switching condition of choosing is carried out to the switching between adjacent area;
Wherein, if current sector comprises real time business terminal, described adjacent area load balancing condition comprises:
The outer shroud wireless bandwidth time interval resource utilance of current sector base stations is greater than the light thresholding of the first load balancing;
The outer shroud wireless bandwidth time interval resource utilance of neighbor base station is less than the heavy thresholding of the first load balancing;
The outer shroud wireless bandwidth time interval resource utilance of current sector base stations be greater than neighbor base station outer shroud wireless bandwidth time interval resource utilance and first table tennis thresholding and.
7. method according to claim 6, is characterized in that, if only include non-real-time service terminal in current sector, described adjacent area load balancing condition comprises:
The outer shroud wireless bandwidth time interval resource utilance of current sector base stations is greater than the light thresholding of the first load balancing;
The outer shroud wireless bandwidth time interval resource utilance of neighbor base station is less than the heavy thresholding of the first load balancing;
The outer shroud wireless bandwidth time interval resource utilance of current sector base stations be greater than neighbor base station outer shroud wireless bandwidth time interval resource utilance and first table tennis thresholding and;
The terminal number that accesses current sector base stations is greater than the light thresholding of the second load balancing;
The terminal number of access neighbor base station is less than the heavy thresholding of the second load balancing;
The terminal number that accesses current sector base stations be greater than access neighbor base station terminal number and second table tennis thresholding and.
8. according to the method described in claim 6 or 7, it is characterized in that, determine and exist the step of the terminal that meets adjacent area switching condition to comprise:
When the quantity of terminal of the current sector base stations of access is greater than preset value, determines and have the terminal that meets adjacent area switching condition.
9. according to the method described in claim 6 or 7, it is characterized in that, the method also comprises:
During terminal initial access, if exist with the multicarrier adjacent area covering, obtaining the inner and outer ring load information of adjacent area by RRM RRM, is the carrier frequency that this terminal is selected access according to the inner and outer ring load information of adjacent area.
10. a SiteServer LBS, is characterized in that, this system comprises:
Judging unit, for when the cycle of load balancing arrives, if determine and meet inner and outer ring load balancing condition, and there is the terminal that meets inner and outer ring switching condition, choose and meet the terminal of inner and outer ring switching condition and judge whether this terminal meets inner and outer ring acceptance judging condition;
Switch unit, for when meeting inner and outer ring acceptance judging condition, to choose meet inner and outer ring switching condition terminal carry out the switching between inner and outer ring;
Wherein, described judging unit comprises:
Whether cycle monitoring unit, arrived for the cycle of monitoring load equilibrium;
Inner and outer ring load balancing condition judgment unit, for when the cycle of load balancing arrives, determines whether to meet inner and outer ring load balancing condition; Wherein, described inner and outer ring load balancing condition is: terminal is changed to the load balancing condition of outer shroud from interior ring cutting, or terminal is switched to the load balancing condition of interior ring from outer shroud;
Terminal judges unit, for when the cycle of load balancing arrives, determines whether to have the terminal that meets inner and outer ring switching condition, when existence meets the terminal of inner and outer ring switching condition, chooses the terminal that meets inner and outer ring switching condition;
Whether inner and outer ring acceptance judging unit, for judging the terminal that meets inner and outer ring switching condition of choosing, meet inner and outer ring acceptance judging condition;
Described inner and outer ring load balancing condition judgment unit, whether definite meets the load balancing condition of terminal being changed to outer shroud from interior ring cutting, comprising:
Interior ring wireless bandwidth time interval resource occupancy is greater than interior ring load balancing and exits thresholding;
Outer shroud wireless bandwidth time interval resource occupancy is less than outer shroud load balancing and enters thresholding.
11. systems according to claim 10, is characterized in that, described inner and outer ring load balancing condition judgment unit, and whether definite meets the load balancing condition that terminal is switched to interior ring from outer shroud, comprising:
Outer shroud wireless bandwidth time interval resource occupancy is greater than outer shroud load balancing and exits thresholding;
Interior ring wireless bandwidth time interval resource occupancy is less than interior ring load balancing and enters thresholding.
12. systems according to claim 10, is characterized in that, when meeting when terminal is changed to the load balancing condition of outer shroud from interior ring cutting, described terminal judges unit, chooses the minimum interior ring terminal of down receiving signal intensity indication RSSI.
13. according to the system described in claim 10 or 11, it is characterized in that, when meeting when terminal is switched to the load balancing condition of interior ring from outer shroud, described terminal judges unit, as the outer shroud CINR of the highest outer shroud terminal of Carrier-to-Interface ratio CINR, be greater than interior ring CINR exit thresholding and CINR table tennis thresholding and, determine that existence meets the terminal of inner and outer ring switching condition.
14. according to the system described in claim 10 or 11, it is characterized in that, this system also comprises:
Initial access processing unit, for when terminal initial accesses, if determine the multicarrier adjacent area existing with covering, by RRM RRM, obtain the inner and outer ring load information of adjacent area, according to the inner and outer ring load information of adjacent area, be the carrier frequency that this terminal is selected access.
15. 1 kinds of SiteServer LBSs, is characterized in that, this system comprises:
Judging unit, for when the cycle of load balancing arrives, if determine, meet adjacent area load balancing condition, and have the terminal that meets adjacent area switching condition, choose terminal this terminal of anticipation of meeting adjacent area switching condition and whether meet adjacent area acceptance judging condition;
Switch unit, for when meeting adjacent area acceptance judging condition, carries out the switching between adjacent area to the terminal that meets adjacent area switching condition of choosing;
Wherein, described judging unit comprises:
Whether cycle monitoring unit, arrived for the cycle of monitoring load equilibrium;
Load balancing condition judgment unit, adjacent area, for when the cycle of load balancing arrives, determine whether to meet adjacent area load balancing condition, wherein, if determine, current sector comprises real time business terminal, and described adjacent area load balancing condition comprises: the outer shroud wireless bandwidth time interval resource utilance of current sector base stations is greater than the light thresholding of the first load balancing; The outer shroud wireless bandwidth time interval resource utilance of neighbor base station is less than the heavy thresholding of the first load balancing; The outer shroud wireless bandwidth time interval resource utilance of current sector base stations be greater than neighbor base station outer shroud wireless bandwidth time interval resource utilance and first table tennis thresholding and;
Terminal judges unit, for when the cycle of load balancing arrives, determines whether to have the terminal that meets adjacent area switching condition, when existence meets the terminal of adjacent area switching condition, chooses the terminal that meets adjacent area switching condition;
Whether acceptance judging unit, adjacent area, for judging the terminal that meets adjacent area switching condition of choosing, meet adjacent area acceptance judging condition.
16. systems according to claim 15, is characterized in that, load balancing condition judgment unit, described adjacent area only includes non-real-time service terminal if determine in current sector, and described adjacent area load balancing condition comprises:
The outer shroud wireless bandwidth time interval resource utilance of current sector base stations is greater than the light thresholding of the first load balancing;
The outer shroud wireless bandwidth time interval resource utilance of neighbor base station is less than the heavy thresholding of the first load balancing;
The outer shroud wireless bandwidth time interval resource utilance of current sector base stations be greater than neighbor base station outer shroud wireless bandwidth time interval resource utilance and first table tennis thresholding and;
The terminal number that accesses current sector base stations is greater than the light thresholding of the second load balancing;
The terminal number of access neighbor base station is less than the heavy thresholding of the second load balancing;
The terminal number that accesses current sector base stations be greater than access neighbor base station terminal number and second table tennis thresholding and.
17. systems according to claim 15, is characterized in that, described terminal judges unit, when the quantity of terminal of the current sector base stations of access is greater than preset value, is determined and had the terminal that meets adjacent area switching condition.
18. according to the system described in claim 15 or 16, it is characterized in that, this system also comprises:
Initial access processing unit, for when terminal initial accesses, if determine the multicarrier adjacent area existing with covering, obtains the inner and outer ring load information of adjacent area by RRM RRM, according to the inner and outer ring load information of adjacent area, be the carrier frequency that this terminal is selected access.
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| CN201010523886.XA CN101977404B (en) | 2010-10-28 | 2010-10-28 | Load balancing method and system |
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| CN101977404B true CN101977404B (en) | 2014-04-30 |
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| CN104581826B (en) * | 2013-10-24 | 2018-10-16 | 中国移动通信集团北京有限公司 | A kind of dynamic load balancing method and system |
| CN112671704B (en) * | 2020-11-18 | 2022-11-15 | 国网甘肃省电力公司信息通信公司 | Attack-aware mMTC slice resource allocation method and device and electronic equipment |
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| CN1716804A (en) * | 2004-06-30 | 2006-01-04 | 华为技术有限公司 | External circule power control method in CDMA communication system |
| CN1885732A (en) * | 2005-06-23 | 2006-12-27 | 上海华为技术有限公司 | Soft handover downlink power control system and its method |
| CN101594641A (en) * | 2009-07-01 | 2009-12-02 | 东南大学 | Intercell switching load balancing method based on service quality priority |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1716804A (en) * | 2004-06-30 | 2006-01-04 | 华为技术有限公司 | External circule power control method in CDMA communication system |
| CN1885732A (en) * | 2005-06-23 | 2006-12-27 | 上海华为技术有限公司 | Soft handover downlink power control system and its method |
| CN101594641A (en) * | 2009-07-01 | 2009-12-02 | 东南大学 | Intercell switching load balancing method based on service quality priority |
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