CN105208602A - Load balancing method and device - Google Patents
Load balancing method and device Download PDFInfo
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- CN105208602A CN105208602A CN201510671660.7A CN201510671660A CN105208602A CN 105208602 A CN105208602 A CN 105208602A CN 201510671660 A CN201510671660 A CN 201510671660A CN 105208602 A CN105208602 A CN 105208602A
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- occupation rate
- resources occupation
- main plot
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- polymerization terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/08—Load balancing or load distribution
Abstract
The invention discloses a load balancing method, and relates to the technical field of communication. The load balancing method is used for being capable of achieving load balancing of a terminal in a base station. The method comprises the steps that the resource consumption rate of a main cell, the resource consumption rates of all auxiliary cells and the resource consumption rates of non-carrier aggregation terminals in the main cell within the preset time are obtained; whether the resource consumption rate of the main cell, the resource consumption rates of all the auxiliary cells and the resource consumption rates of the non-carrier aggregation terminals in the main cell meet preset conditions or not is judged; when the resource consumption rate of the main cell, the resource consumption rates of all the auxiliary cells and the resource consumption rates of the non-carrier aggregation terminals in the main cell meet the preset conditions, the current non-carrier aggregation terminal with the largest resource consumption rate of the main cell is switched to the current auxiliary cell with the smallest resource consumption rate. The load balancing method is suitable for being used in the process of load balancing in the base station.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of method and device of load balancing.
Background technology
Carrier aggregation technology is an important technology in LTE-Advanced.Carrier aggregation refers to that the data of user can be transmitted on multiple member carrier (CC, ComponentCarrier) simultaneously, is equivalent to the transmission bandwidth adding user.CC represents a up-link carrier or a descending carrier.Generally member carrier can be divided into main member carrier (PCC, and auxiliary member carrier (SCC primaryCC), secondaryCC) so that manage member carrier, and specify that each UE is up to an a up PCC and descending PCC.Descending PCC and up PCC is associated and constitutes main plot (PCell); Descending SCC and optional up SCC is associated and constitutes auxiliary community (SCell).
Compared with SCell, PCell has some specific character, and as PCell can not carry out deexcitation, UE only performs activation/deactivation mechanism on SCell; User (UE) only on PCell to base station (eNB) transmitting physical uplink control information etc.In carrier aggregation system, LTE-AUE can configure multiple CC for transfer of data.Consider that PCC and SCC also exists otherness, compared with SCC, PCC needs additional support to manage the transmission of uplink control information, part signaling and SPS dispatching services data.If CC as PCC access user or business too much time, having exceeded this CC can carry to greatest extent, can cause controlling resource reprovision and increasing a large amount of signaling consumption, user or business also can be caused to can not get timely scheduling, affect the communication quality of user.
Because user selects resident carrier wave according to certain principle, user transfers to from idle IDLE state and connects CONNECTED state, its resident carrier wave becomes the PCell of this user, each CC like this under same eNB may occur that user distribution is unbalanced, as PCC, oneself is in saturation condition to some CC, and other CC are not utilized fully as its resource of PCC.Therefore, in carrier aggregation system, between each CC under same eNB, there will be the problem of load imbalance.
Summary of the invention
Embodiments of the invention provide a kind of method and device of load balancing, can realize the load balancing of terminal in base station.
For achieving the above object, embodiments of the invention adopt following technical scheme:
Embodiments provide a kind of method of load balancing, comprising:
Obtain the resources occupation rate of the resources occupation rate of main plot, the resources occupation rate of each auxiliary community and non-carrier polymerization terminal in described main plot in Preset Time;
Judge whether the resources occupation rate of the resources occupation rate of described main plot, each auxiliary local resource occupancy and non-carrier polymerization terminal in described main plot meets pre-conditioned;
When the resources occupation rate of main plot, each auxiliary local resource occupancy and non-carrier polymerization terminal meets pre-conditioned in the resources occupation rate of described main plot, by the current non-carrier maximum in the resources occupation rate of described main plot polymerization terminal switch in the minimum auxiliary community of Current resource occupancy.
The embodiment of the present invention additionally provides a kind of device of load balancing, comprising:
Acquiring unit, for obtaining the resources occupation rate of the resources occupation rate of main plot in Preset Time, the resources occupation rate of each auxiliary community and non-carrier polymerization terminal in described main plot;
Judging unit, for judging whether the resources occupation rate of the resources occupation rate of described main plot, each auxiliary local resource occupancy and non-carrier polymerization terminal in described main plot meets pre-conditioned;
Switch unit, for when the resources occupation rate of main plot, each auxiliary local resource occupancy and non-carrier polymerization terminal meets pre-conditioned in the resources occupation rate of described main plot, by the current non-carrier maximum in the resources occupation rate of described main plot polymerization terminal switch in the minimum auxiliary community of Current resource occupancy.
Embodiments provide a kind of method and device of load balancing, by obtaining the resources occupation rate of the resources occupation rate of main plot, the resources occupation rate of each auxiliary community and non-carrier polymerization terminal in described main plot in Preset Time, and determine whether to carry out load balancing based on these parameters, effectively can avoid network congestion, ensure communication quality.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The method flow diagram of a kind of load balancing that Fig. 1 provides for the embodiment of the present invention;
The composition frame chart of the device of a kind of load balancing that Fig. 2 provides for the embodiment of the present invention;
The composition frame chart of the device of a kind of load balancing that Fig. 3 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The method of a kind of load balancing that the embodiment of the present invention provides, be applicable to use in the network of carrier aggregation technology, the method has base station to perform, and idiographic flow as shown in Figure 1, comprising:
101, the resources occupation rate of the resources occupation rate of main plot, the resources occupation rate of each auxiliary community and non-carrier polymerization terminal in described main plot in Preset Time is obtained.
Above parameter can obtain in the following manner:
Receive the measurement report of non-carrier polymerization terminal to report, described measurement report carries the RSRP measurement result to main plot and adjacent area, according to described measurement report, determine the resources occupation rate of the resources occupation rate of main plot in Preset Time, the resources occupation rate of each auxiliary community and non-carrier polymerization terminal in described main plot.
102, judge whether the resources occupation rate of the resources occupation rate of described main plot, each auxiliary local resource occupancy and non-carrier polymerization terminal in described main plot meets pre-conditioned.
Wherein, as follows for whether meeting pre-conditioned determination methods:
When the resources occupation rate of described main plot, each auxiliary local resource occupancy and non-carrier polymerization terminal meets formula in the resources occupation rate of described main plot
time, then determine that the resources occupation rate of described main plot, each auxiliary local resource occupancy and non-carrier polymerization terminal meets pre-conditioned in the resources occupation rate of described main plot.
When the resources occupation rate of described main plot, each auxiliary local resource occupancy and non-carrier polymerization terminal does not meet formula in the resources occupation rate of described main plot
time, then determine that the resources occupation rate of the resources occupation rate of described main plot, each auxiliary local resource occupancy and non-carrier polymerization terminal in described main plot does not meet pre-conditioned.
Wherein, described PRB_P is the resources occupation rate of main plot, described PRB_Si is the resources occupation rate of the i-th Ge Fu community, and PRB_NonCA_UE_i is the resources occupation rate of i-th non-carrier polymerization terminal in main plot, and ɑ is load dispatch coefficient, according to network, its value can expect that situation sets, for embodying cell load desired value height, when ɑ value is larger, characterizing expection main plot load can be heavier, when ɑ value is less, characterizing expection main plot load can be lighter.
103, when the resources occupation rate of main plot, each auxiliary local resource occupancy and non-carrier polymerization terminal meets pre-conditioned in the resources occupation rate of described main plot, by the current non-carrier maximum in the resources occupation rate of described main plot polymerization terminal switch in the minimum auxiliary community of Current resource occupancy.
Supplementary notes, when not meeting pre-conditioned, can not carry out load balancing to the terminal in current base station.
It should be noted that, if need simultaneously for multiple non-carrier polymerization terminal carry out load balancing time, the PRB_NonCA_UE_i in main plot is carried out from small to large sequence and is designated as set A,
A={A1, A2 ..., An} (wherein, A1 >=A2 ..., >=An)
The terminal in set A corresponding to maximum is selected to switch successively.
It should be added that, when having several for the You Fu community that measures of non-carrier polymerization terminal in a main plot, the resources occupation rate of multiple adjacent area is carried out descending sequence, is designated as set B,
B={B1, B2 ..., Bn} (wherein, B1 >=B2 ..., >=Bn)
In first-selected set B, the auxiliary community of the minimum correspondence of resource utilization value is as target handover cell.
When determining that a terminal needs to carry out load balancing switching, base station needs to carry out resource access in target handover cell, is the interface-free resources that this terminal to apply is new after the success of resource access.
After resource bid success, base station sends to terminal and reshuffles RRCConnectionReconfigration message, and indicating terminal initiates switching action; Behind terminal access target handover cell, terminal transmission has been reshuffled RRCConnectionReconfigrationComplete message indicating terminal and has been accessed Target cell; After base station receives RRCConnectionReconfigrationComplete message, discharge the resource that this terminal takies in cell-of-origin.
Embodiments provide a kind of method of load balancing, by obtaining the resources occupation rate of the resources occupation rate of main plot, the resources occupation rate of each auxiliary community and non-carrier polymerization terminal in described main plot in Preset Time, and determine whether to carry out load balancing based on these parameters, effectively can avoid network congestion, ensure communication quality.
The embodiment of the present invention additionally provides a kind of device of load balancing, and as shown in Figure 2, this device comprises:
Acquiring unit 21, for obtaining the resources occupation rate of the resources occupation rate of main plot in Preset Time, the resources occupation rate of each auxiliary community and non-carrier polymerization terminal in described main plot.
Judging unit 22, for judging whether the resources occupation rate of the resources occupation rate of described main plot, each auxiliary local resource occupancy and non-carrier polymerization terminal in described main plot meets pre-conditioned.
Switch unit 23, for when the resources occupation rate of main plot, each auxiliary local resource occupancy and non-carrier polymerization terminal meets pre-conditioned in the resources occupation rate of described main plot, by the current non-carrier maximum in the resources occupation rate of described main plot polymerization terminal switch in the minimum auxiliary community of Current resource occupancy.
Optionally, described judging unit 22 is specifically for meeting formula when the resources occupation rate of described main plot, each auxiliary local resource occupancy and non-carrier polymerization terminal in the resources occupation rate of described main plot
time, determine that the resources occupation rate of described main plot, each auxiliary local resource occupancy and non-carrier polymerization terminal meets pre-conditioned in the resources occupation rate of described main plot; When the resources occupation rate of described main plot, each auxiliary local resource occupancy and non-carrier polymerization terminal does not meet formula in the resources occupation rate of described main plot
time, determine that the resources occupation rate of the resources occupation rate of described main plot, each auxiliary local resource occupancy and non-carrier polymerization terminal in described main plot does not meet pre-conditioned;
Wherein, described PRB_P is the resources occupation rate of main plot, and described PRB_Si is the resources occupation rate of the i-th Ge Fu community, and PRB_NonCA_UE_i is the resources occupation rate of i-th non-carrier polymerization terminal in main plot, and ɑ is load dispatch coefficient.
Optionally, as shown in Figure 3, described acquiring unit 21 comprises:
Receiver module 211, for receiving the measurement report of described terminal to report, described measurement report carries the RSRP measurement result to main plot and adjacent area.
Determination module 212, for according to described measurement report, determines the resources occupation rate of main plot in Preset Time, the resources occupation rate of each auxiliary community and the resources occupation rate of non-carrier polymerization terminal in described main plot.
Embodiments provide a kind of device of load balancing, by obtaining the resources occupation rate of the resources occupation rate of main plot, the resources occupation rate of each auxiliary community and non-carrier polymerization terminal in described main plot in Preset Time, and determine whether to carry out load balancing based on these parameters, effectively can avoid network congestion, ensure communication quality.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add required common hardware by software and realize, and can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Based on such understanding, technical scheme of the present invention can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product is stored in the storage medium that can read, as the floppy disk of computer, hard disk or CD etc., comprise some instructions and perform method described in each embodiment of the present invention in order to make a computer equipment (can be personal computer, server, or the network equipment etc.).
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.
Claims (6)
1. a method for load balancing, is characterized in that, comprising:
Obtain the resources occupation rate of the resources occupation rate of main plot, the resources occupation rate of each auxiliary community and non-carrier polymerization terminal in described main plot in Preset Time;
Judge whether the resources occupation rate of the resources occupation rate of described main plot, each auxiliary local resource occupancy and non-carrier polymerization terminal in described main plot meets pre-conditioned;
When the resources occupation rate of main plot, each auxiliary local resource occupancy and non-carrier polymerization terminal meets pre-conditioned in the resources occupation rate of described main plot, by the current non-carrier maximum in the resources occupation rate of described main plot polymerization terminal switch in the minimum auxiliary community of Current resource occupancy.
2. method according to claim 1, is characterized in that, whether the described resources occupation rate of resources occupation rate, each auxiliary local resource occupancy and non-carrier polymerization terminal in described main plot judging described main plot meets pre-conditioned comprising:
When the resources occupation rate of described main plot, each auxiliary local resource occupancy and non-carrier polymerization terminal meets formula in the resources occupation rate of described main plot
Time, then determine that the resources occupation rate of described main plot, each auxiliary local resource occupancy and non-carrier polymerization terminal meets pre-conditioned in the resources occupation rate of described main plot;
When the resources occupation rate of described main plot, each auxiliary local resource occupancy and non-carrier polymerization terminal does not meet formula in the resources occupation rate of described main plot
Time, then determine that the resources occupation rate of the resources occupation rate of described main plot, each auxiliary local resource occupancy and non-carrier polymerization terminal in described main plot does not meet pre-conditioned;
Wherein, described PRB_P is the resources occupation rate of main plot, and described PRB_Si is the resources occupation rate of the i-th Ge Fu community, and PRB_NonCA_UE_i is the resources occupation rate of i-th non-carrier polymerization terminal in main plot, and ɑ is load dispatch coefficient.
3. method according to claim 1, is characterized in that, in described acquisition Preset Time, the resources occupation rate of main plot, the resources occupation rate of each auxiliary community and non-carrier polymerization terminal comprises in the resources occupation rate of described main plot:
Receive the measurement report of non-carrier polymerization terminal to report, described measurement report carries the RSRP measurement result to main plot and adjacent area;
According to described measurement report, determine the resources occupation rate of the resources occupation rate of main plot in Preset Time, the resources occupation rate of each auxiliary community and non-carrier polymerization terminal in described main plot.
4. a device for load balancing, is characterized in that, comprising:
Acquiring unit, for obtaining the resources occupation rate of the resources occupation rate of main plot in Preset Time, the resources occupation rate of each auxiliary community and non-carrier polymerization terminal in described main plot;
Judging unit, for judging whether the resources occupation rate of the resources occupation rate of described main plot, each auxiliary local resource occupancy and non-carrier polymerization terminal in described main plot meets pre-conditioned;
Switch unit, for when the resources occupation rate of main plot, each auxiliary local resource occupancy and non-carrier polymerization terminal meets pre-conditioned in the resources occupation rate of described main plot, by the current non-carrier maximum in the resources occupation rate of described main plot polymerization terminal switch in the minimum auxiliary community of Current resource occupancy.
5. device according to claim 4, is characterized in that, described judging unit is specifically for meeting formula when the resources occupation rate of described main plot, each auxiliary local resource occupancy and non-carrier polymerization terminal in the resources occupation rate of described main plot
Time, determine that the resources occupation rate of described main plot, each auxiliary local resource occupancy and non-carrier polymerization terminal meets pre-conditioned in the resources occupation rate of described main plot; When the resources occupation rate of described main plot, each auxiliary local resource occupancy and non-carrier polymerization terminal does not meet formula in the resources occupation rate of described main plot
Time, determine that the resources occupation rate of the resources occupation rate of described main plot, each auxiliary local resource occupancy and non-carrier polymerization terminal in described main plot does not meet pre-conditioned;
Wherein, described PRB_P is the resources occupation rate of main plot, and described PRB_Si is the resources occupation rate of the i-th Ge Fu community, and PRB_NonCA_UE_i is the resources occupation rate of i-th non-carrier polymerization terminal in main plot, and ɑ is load dispatch coefficient.
6. device according to claim 4, is characterized in that, described acquiring unit comprises:
Receiver module, for receiving the measurement report of described terminal to report, described measurement report carries the RSRP measurement result to main plot and adjacent area;
Determination module, for according to described measurement report, determines the resources occupation rate of main plot in Preset Time, the resources occupation rate of each auxiliary community and the resources occupation rate of non-carrier polymerization terminal in described main plot.
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CN108242986A (en) * | 2016-12-23 | 2018-07-03 | 大唐移动通信设备有限公司 | A kind of load-balancing method and device based on number of users |
CN109803313A (en) * | 2017-11-17 | 2019-05-24 | 电信科学技术研究院 | A kind of jamming control method, terminal and computer readable storage medium |
CN109996293A (en) * | 2018-01-02 | 2019-07-09 | 大唐移动通信设备有限公司 | A kind of method and apparatus of load balancing |
CN110505043A (en) * | 2018-05-17 | 2019-11-26 | 大唐移动通信设备有限公司 | Load-balancing method and device based on multi-carrier polymerizing |
WO2021027498A1 (en) * | 2019-08-13 | 2021-02-18 | 中兴通讯股份有限公司 | Traffic allocation management method, apparatus, base station, and storage medium |
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CN110505043A (en) * | 2018-05-17 | 2019-11-26 | 大唐移动通信设备有限公司 | Load-balancing method and device based on multi-carrier polymerizing |
CN110505043B (en) * | 2018-05-17 | 2020-10-30 | 大唐移动通信设备有限公司 | Load balancing method and device based on multi-carrier aggregation |
WO2021027498A1 (en) * | 2019-08-13 | 2021-02-18 | 中兴通讯股份有限公司 | Traffic allocation management method, apparatus, base station, and storage medium |
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