CN109586861A - A kind of carrier aggregation system load-balancing method and device - Google Patents
A kind of carrier aggregation system load-balancing method and device Download PDFInfo
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- CN109586861A CN109586861A CN201710897695.1A CN201710897695A CN109586861A CN 109586861 A CN109586861 A CN 109586861A CN 201710897695 A CN201710897695 A CN 201710897695A CN 109586861 A CN109586861 A CN 109586861A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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Abstract
The embodiment of the present invention provides a kind of carrier aggregation system load-balancing method and device, this method comprises: when monitoring load balancing trigger condition, according to the corresponding local resource load information of boundary user each in carrier aggregation system, user to be adjusted is chosen from boundary user, and is chosen target from cell involved in the corresponding local resource load information of user to be adjusted and accessed cell；Generate cell handover configurations data, and it is issued to user current service cell to be adjusted and the target access corresponding base station of cell, so that base station carries out resource reconfiguration according to cell handover configurations data, the switching that user to be adjusted accesses cell from current service cell to target is completed.Using scheme provided in an embodiment of the present invention, the load of cell in adjustment carrier aggregation system can be switched by the cell of boundary user, cell-overload is avoided the occurrence of, ensures the load balancing for the carrier aggregation system that carrier aggregation subdistrict and non-carrier aggregation cell coexist, improves resource utilization.
Description
Technical field
The present embodiments relate to wireless communication technology field more particularly to a kind of carrier aggregation system load-balancing methods
And device.
Background technique
Carrier aggregation technology is an important technology in LTE-Advanced, refers to that the data of user can be in multiple CC
Simultaneous transmission on (Component Carrier, member carrier), the transmission bandwidth equivalent to increase user.CC represents one
As soon as a up-link carrier or descending carrier, a uplink CC and a downlink CC are associated structure by certain corresponding relationship
At a carrier aggregation subdistrict, so carrier wave polymerization is also referred to as cell aggregation.For the ease of the management to member carrier, one
As member carrier can be divided into PCC (Primary CC, main member carrier) and SCC (Secondary CC, auxiliary member carry
Wave).Correspondingly, main carrier cell may make up by uplink main member carrier and downlink main member carrier, by downlink secondary member carrier
It may make up secondary carrier cell with downlink secondary member carrier.
The selection of member carrier is an important component in carrier aggregation technology, and multiple member carriers polymerize to be formed
Wider aggregate bandwidth, the superiority and inferiority of member carrier directly affects the quality of channel, and then influences the performance of communication system.
Currently, each supports that the user of carrier wave polymerization can configure a main member carrier and several auxiliary members carry
Wave.It is existing to be selected based on RSRP (Reference Signal Receiving Power, Reference Signal Received Power)
Member carrier specifically selects main member carrier of the carrier wave with maximum RSRP value as user, so that the channel of user
Quality is fully guaranteed.However, the coverage area due to low frequency carrier signal is wider than the coverage area of high frequency carrier, a certain area
The low frequency carrier signal that user in domain selects RSRP value high will will lead to the overload of low frequency carrier signal, cause major-minor in region
Load imbalance between carrier cell.
In order to solve the problems, such as the load imbalance between existing major-minor carrier cell, the existing one kind that proposes is moved based on user
Dynamic member carrier selection scheme, the range of the covering according to needed for user determine the carrier wave alternative collection of the user, are loading
Balance factor selects member carrier of the biggish carrier wave of coverage area as user under conditions of meeting given threshold value, when in cell
After carrier switch is triggered, new carrier wave is selected to substitute SINR (the Signal to Interferenceplus of user
Noise Ratio, Signal to Interference plus Noise Ratio) it is lower than the member carrier of threshold value, the load between carrier wave polymerization is ensured with this
It is balanced.
However, since existing load balancing scheme only considers the load balancing between member carrier, therefore, it is impossible to meet carrier wave
The load balancing demand for the carrier aggregation system that aggregation cell and non-carrier aggregation cell coexist.
Summary of the invention
In view of drawbacks described above in the prior art or deficiency, be intended to provide a kind of carrier aggregation system load-balancing method and
Device can ensure the load balancing for the carrier aggregation system that carrier aggregation subdistrict and non-carrier aggregation cell coexist, and improve money
Source utilization rate.
In a first aspect, the embodiment of the invention provides a kind of carrier aggregation system load-balancing methods, comprising:
It is corresponding small according to boundary user each in the carrier aggregation system when monitoring load balancing trigger condition
Area resource load information chooses user to be adjusted from boundary user；Wherein, the boundary user is to polymerize in the carrier wave
Main carrier cell, secondary carrier cell and non-carrier aggregation cell collectively cover the user in range in system；
According to the corresponding local resource load information of the user to be adjusted, from the corresponding cell money of the user to be adjusted
Target is chosen in each cell involved in the load information of source accesses cell；
Cell handover configurations data are generated, and are issued to the user current service cell to be adjusted and target access
The corresponding base station of cell, so that the base station carries out resource reconfiguration according to the cell handover configurations data, described in completion
User to be adjusted accesses the switching of cell from the current service cell to the target.
Second aspect, the embodiment of the invention also provides a kind of carrier aggregation system load balancing apparatus, comprising:
User's selection unit to be adjusted, when for monitoring load balancing trigger condition, according to the carrier aggregation system
In each corresponding local resource load information of boundary user, user to be adjusted is chosen from boundary user；Wherein, the side
Boundary user is to collectively cover in the carrier aggregation system in main carrier cell, secondary carrier cell and non-carrier aggregation cell
User in range；
Target accesses cell selection unit, for according to the corresponding local resource load information of the user to be adjusted, from
Target, which is chosen, in each cell involved in the corresponding local resource load information of the user to be adjusted accesses cell；
Load Balance Unit for generating cell handover configurations data, and is issued to user's current service to be adjusted
Cell and the target access the corresponding base station of cell, so that the base station is carried out according to the cell handover configurations data
The switching that the user to be adjusted accesses cell from the current service cell to the target is completed in resource reconfiguration.
The third aspect, the embodiment of the invention also provides a kind of electronic equipment, including processor, memory and bus,
In:
The processor, the memory complete mutual communication by bus；
The processor can call the computer program in memory, to execute above-mentioned first aspect embodiment offer
The step of carrier aggregation system load-balancing method.
Fourth aspect, the embodiment of the invention also provides a kind of computer readable storage mediums, are stored thereon with computer
Program realizes that the carrier aggregation system load provided such as above-mentioned first aspect embodiment is equal when the program is executed by processor
The step of weighing apparatus method.
Carrier aggregation system load-balancing method and device provided in an embodiment of the present invention, in advance from carrier aggregation system
Collect the local resource load information of each user in each base station；When monitoring load balancing trigger condition, loaded according to local resource
Information collectively covers in the boundary user in range from main carrier cell, secondary carrier cell and non-carrier aggregation cell
User to be adjusted is chosen, and chooses the corresponding target access cell of the user to be adjusted；To user current service cell to be adjusted
Cell handover configurations data are issued with the target access corresponding base station of cell, so that base station is according to cell handover configurations data
Resource reconfiguration is carried out, the switching that user to be adjusted accesses cell from the current service cell to target is completed.In this way, passing through side
The cell of boundary user switches, and the load of cell in adjustable carrier aggregation system avoids the occurrence of cell-overload, ensures that carrier wave is poly-
The load balancing for closing the carrier aggregation system that cell coexists with non-carrier aggregation cell, improves the utilization of resources of carrier aggregation system
Rate.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 shows the structural schematic diagram of carrier aggregation system according to an embodiment of the invention；
Fig. 2 shows the exemplary flows of carrier aggregation system load-balancing method according to an embodiment of the invention
Figure；
Fig. 3 shows the structural representation of carrier aggregation system load balancing apparatus according to an embodiment of the invention
Figure；
Fig. 4 shows the entity structure schematic diagram of electronic equipment according to an embodiment of the invention.
Specific embodiment
Clear, complete description is carried out to technical solution of the present invention below with reference to attached drawing, it is clear that described implementation
Example is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is general
Logical technical staff obtained all other embodiment without making creative work belongs to the present invention and is protected
The range of shield.
The terms such as " module " used in this application, " device " be intended to include with computer-related entity, such as it is but unlimited
In hardware, firmware, combination thereof, software or software in execution.For example, module can be, and it is not limited to: processing
Process, processor, object, executable program, the thread of execution, program and/or the computer run on device.For example, it counts
Calculating the application program run in equipment and this calculating equipment can be module.One or more modules can be located in execution
In one process and/or thread, a module can also be located on a computer and/or be distributed in two or more calculating
Between machine.
The technical solution that the invention will now be described in detail with reference to the accompanying drawings.
With reference to Fig. 1, it illustrates the structural schematic diagrams of carrier aggregation system according to an embodiment of the invention.Such as Fig. 1
Shown, the carrier aggregation system 100 of one embodiment of the invention may include: OMC (Operation and Maintenance
Center, operation and maintenance center) 101, several base stations 102 and user terminal 103 (user can be referred to as below).
Wherein, there are the situations that carrier aggregation subdistrict and non-carrier aggregation cell coexist in carrier aggregation system 100.It is practical
In, base station 102 can be divided into the base station CA for supporting CA (Carrier Aggregation, carrier wave polymerization) and not support
The non-base station CA of CA；The base station CA can provide carrier aggregation subdistrict, if carrier aggregation subdistrict may include a main carrier cell and
Dry secondary carrier cell；The non-base station CA can provide non-carrier aggregation cell.Correspondingly, the user 103 in carrier aggregation system 100
It can access carrier aggregation subdistrict or non-carrier aggregation cell.
In the embodiment of the present invention, OMC101 can polymerize system with carrier wave by OM (Optical Mode, optical mode) link
Each base station 102 in system 100 carries out signaling transmitting and information transmission.
Based on above-mentioned carrier aggregation system 100, it is equal that one embodiment of the invention provides a kind of carrier aggregation system load
Weighing apparatus method.With reference to Fig. 2, it illustrates the exemplary of carrier aggregation system load-balancing method according to an embodiment of the invention
Flow chart.
The executing subject of each step is the OMC in carrier aggregation system in embodiment illustrated in fig. 2.
In the embodiment of the present invention, OMC can be collected from base station in carrier aggregation system the current load information of each cell and
Local resource of the user occupied by serving cell.In practical application, base station can report the base station corresponding from OM chain road direction OMC
Cell access user occupied by local resource and the load information of cell dynamic-change information, so that OMC is timely
Grasp the current load information of each cell.OMC can determine the user accessed in carrier aggregation system according to user's measurement report
Current service cell and neighboring community, and obtain user corresponding RSRP on current service cell and neighboring community
Value.
For each user in carrier aggregation system, to local resource of the user occupied by current service cell,
Current service cell and several neighboring communities respectively current load information and user in current service cell and adjacent small
Corresponding RSRP value is decoupled in area, constructs the corresponding local resource load information of the user.Wherein, user is current
The local resource that serving cell occupies includes: PRB (Physical Resource Block, Physical Resource Block)；Load information is extremely
Few includes following a kind of: cell PRB occupancy, online user number, online user's uplink and downlink flow.
In the embodiment of the present invention, the current service cell of user may include a main carrier cell；Alternatively, user's works as
Preceding serving cell may include a main carrier cell and one or more secondary carrier cells；Alternatively, the current service of user is small
Area may include a non-carrier aggregation cell.
As shown in Fig. 2, the carrier aggregation system load-balancing method of one embodiment of the invention, may include walking as follows
It is rapid:
S210: corresponding according to boundary user each in carrier aggregation system when monitoring load balancing trigger condition
Local resource load information chooses user to be adjusted from boundary user.
In the embodiment of the present invention, load balancing trigger condition include at least it is following any one: preset load is equal
The weighing apparatus period reaches, new user is accessed in carrier aggregation system, in carrier aggregation system old user exit, in carrier aggregation system
It is more than given threshold that the data service bandwidth demand of accessing user, which changes,.In this way, in carrier aggregation system each cell load
In the case where changing or periodically triggering carries out load balancing to adjust the load of cell in carrier aggregation system, can avoid
Existing cell-overload ensures that carrier aggregation system maintains load balancing state, improves the level of resources utilization.Wherein, carrier wave polymerize
The state of system load balancing is primarily referred to as each cell in carrier aggregation system and normally provides service, does not occur overload phenomenon.
It, can be in order to realize carrier aggregation subdistrict and the load balancing of carrier aggregation system that non-carrier aggregation cell coexists
Consider based on the cell for collectively covering the user in range in main carrier cell, secondary carrier cell and non-carrier aggregation cell
Switching is to realize.Wherein, common in main carrier cell, secondary carrier cell and non-carrier aggregation cell in carrier aggregation system
User in coverage area can be described as boundary user.
In the embodiment of the present invention, when triggering carries out load balancing, it can choose from boundary user for realizing carrier wave
The user to be adjusted of each inter-cell load equilibrium in paradigmatic system.
Specifically, each corresponding local resource load information of boundary user in the available carrier aggregation system of OMC.
Later, user to be adjusted is chosen from boundary user with the local resource load information of acquisition according to actual needs.
Wherein, the local resource load information of user may include following data: user is occupied by the current service cell
Local resource, current service cell and neighboring community respectively current load information and user in current service cell and
Corresponding RSRP value in neighboring community.
In the embodiment of the present invention, OMC can be according to the corresponding local resource of boundary user each in carrier aggregation system
Load information determines each boundary user corresponding RSRP value in main carrier cell, wherein local resource load information includes:
User's corresponding RSRP value on current service cell and neighboring community.
Then, according to each boundary user in main carrier cell corresponding RSRP value, choose one or more boundary users
For user to be adjusted, main carrier cell release burden is given so as to subsequent, improves the bearer rate of main carrier cell.
For example, can be chosen at corresponding RSRP value in main carrier cell be lower than set the boundary user of RSRP threshold value as to
Adjust user；Alternatively, corresponding RSRP value is ranked up in main carrier cell to each boundary user, it is chosen at main carrier cell
The boundary user of upper corresponding RSRP value the smallest one or specified quantity is user to be adjusted.
Optionally, in the embodiment of the present invention, each corresponding cell of boundary user in carrier aggregation system is obtained in OMC
After resource load information, the user being affected to the load balancing of cell each in carrier aggregation system can be found, and make
For user to be adjusted.
Specifically, OMC can be corresponding according to each boundary user in the corresponding weight of each cell, carrier aggregation system
Local resource load information calculates local resource total amount occupied by each boundary user in carrier aggregation system.Wherein, cell
Resource load information may include: local resource of the user occupied by current service cell.
Then, OMC, can in calculating carrier aggregation system after local resource total amount occupied by each boundary user
With the local resource total amount according to occupied by each boundary user, choosing one or more boundary users is user to be adjusted.
For example, can be chosen at the local resource total amount that occupies is higher than the boundary user of the resource threshold set to be to be adjusted
User；Alternatively, can be ranked up to local resource total amount occupied by each boundary user, the local resource total amount occupied is chosen
The boundary user of highest one or specified quantity is user to be adjusted.
Wherein, in carrier aggregation system the corresponding weight of each cell be it is preconfigured, to distinguish different community to load
The overall performance of wave paradigmatic system influences.For example, the weight higher than secondary carrier cell can be set in the weight of main carrier cell, it is auxiliary
The weight of carrier cell is higher than the weight of non-carrier aggregation cell.
The calculating of the local resource total amount occupied by boundary user each in carrier aggregation system, can be by as follows
Mode is realized: being directed to each boundary user, OMC determines that the boundary is used from the corresponding local resource load information of the boundary user
Family local resource occupied by each cell；According to boundary user local resource occupied by each cell and each cell
Corresponding weight counts boundary user local resource total amount occupied in carrier aggregation system.
For example, the corresponding weight of main carrier cell is Q1, the corresponding weight of secondary carrier cell is Q2, non-carrier polymerization is small
The weight in area is Q3, in the case that boundary user current service cell includes a main carrier cell and a secondary carrier cell,
The product of boundary user local resource P1 occupied by main carrier cell weight Q1 corresponding with main carrier cell is calculated, and
The product of boundary user local resource P2 occupied by secondary carrier cell weight Q2 corresponding with secondary carrier cell；Later, will
Two obtained product values add up, and obtain boundary user local resource total amount occupied in carrier aggregation system.
S220: according to the corresponding local resource load information of user to be adjusted, from the corresponding local resource of user to be adjusted
Target is chosen in each cell involved in load information accesses cell.
In the embodiment of the present invention, after OMC chooses user to be adjusted, in order to realize, each minizone is negative in carrier aggregation system
Equilibrium is carried, corresponding target can be chosen for the user to be adjusted chosen and access cell.Selection about target access cell can
It is realized in a manner of using the following two kinds.
Mode one, OMC can determine each cell involved in the corresponding local resource load information of user to be adjusted.Its
In, each cell involved in the corresponding local resource load information of user to be adjusted includes the current service cell of user to be adjusted
With several neighboring communities.In practical application, when the current service cell of user is a main carrier cell, neighboring community can be with
Including secondary carrier cell, non-carrier aggregation cell.The current service cell of user is a main carrier cell and one or more
When secondary carrier cell, neighboring community may include other secondary carrier cells, non-carrier aggregation cell.The current service cell of user
When may include a non-carrier aggregation cell, neighboring community may include main carrier cell, secondary carrier cell.
Then, OMC can be for each cell involved in the corresponding local resource load information of user to be adjusted, really
The current load information of the fixed cell；The current load information of each cell is compared, cell conduct most lightly loaded is chosen
Target accesses cell.
Mode two considers that different community is different to the overall performance influence degree of carrier aggregation system, and OMC determines to be adjusted
It, can be corresponding according to cell each in carrier aggregation system after each cell involved in the corresponding local resource load information of user
Weight, the corresponding local resource load information of user to be adjusted, calculate each cell involved in the local resource load information
Current relative load.Wherein, local resource load information may include: that user current service cell and neighboring community respectively work as
Preceding load information.
In practical application, OMC can be for each involved in the corresponding local resource load information of user to be adjusted
It is small to calculate this according to the current load information of the cell in the corresponding weight of the cell and local resource load information for cell
The current relative load in area.For example, the weighting ratio in main carrier cell and secondary carrier cell, non-carrier aggregation cell is 5:2:
1, it, can be by 5/8 multiplied by main load for main carrier cell in the case that the load information of cell is specially cell PRB occupancy
The current cell PRB occupancy of wave cell, obtains the current relative load of main carrier cell.
Calculating the current relative load of each cell involved in the corresponding local resource load information of user to be adjusted
Later, relative load can be chosen from each cell involved in the corresponding local resource load information of user to be adjusted most light
Cell accesses cell as target.
S230: generate cell handover configurations data, and be issued to user current service cell to be adjusted and target access it is small
User to be adjusted is completed from current so that base station carries out resource reconfiguration according to area's handover configurations data in the corresponding base station in area
Switching of the serving cell to target access cell.
In the embodiment of the present invention, in order to realize, each inter-cell load is balanced in carrier aggregation system, can be by use to be adjusted
Family is switched to target access cell from current service cell.
Specifically, OMC can by step S210, S220 select user to be adjusted and its corresponding target access it is small
After area, condition needed for can accessing the switching of cell from current service cell to target according to user is generated corresponding small
Area's handover configurations data, and the cell handover configurations data distributing of generation to user current service cell to be adjusted and target is connect
Enter the corresponding base station of cell.In this way, the corresponding base station in user current service cell to be adjusted and target access cell can
To carry out resource reconfiguration according to cell handover configurations data, completes user to be adjusted and access cell from current service cell to target
Switching.
In practical application, current service cell is main carrier cell, supplemented by target access cell when carrier cell, Yong Hujin
The gravity treatment switching of the major-minor carrier cell of row.Current service cell is main carrier cell, and it is that non-carrier polymerization is small that target, which accesses cell,
Qu Shi, user carry out carrier aggregation subdistrict to the switching of non-carrier aggregation cell, and switch reasons are load balancing.Current service is small
Area is non-carrier aggregation cell, and when target access cell is main carrier cell, it is poly- to carrier wave that user carries out non-carrier aggregation cell
The switching of cell is closed, switch reasons are load balancing.
Optionally, in the embodiment of the present invention, in order to ensure the overall performance of carrier aggregation system, by step S210,
After S220 selects user to be adjusted and its corresponding target access cell, generating for making user to be adjusted from current clothes
It, can be first according to each in carrier aggregation system before cell handover configurations data needed for business cell switches to target access cell
The weight of cell calculates the current surplus resources total amount of carrier aggregation system；And according to the power of cell each in carrier aggregation system
Value, the surplus resources of carrier aggregation system are total after user to be adjusted is switched to target access cell from current service cell by calculation
Amount.In practical application, OMC can determine the surplus yield of each cell according to the current load information of each cell；Later, according to
The surplus yield of the weight of each cell and each cell counts the current surplus resources total amount of carrier aggregation system.
Then, the surplus resources total amount current with carrier aggregation system of the surplus resources total amount after calculation is compared,
If the surplus resources total amount after calculation is greater than the current surplus resources total amount of carrier aggregation system, cell handover configurations number is generated
According to.
In practical application, if the surplus resources total amount after calculation is less than or equal to the current surplus resources of carrier aggregation system
Total amount then can be chosen again target in different ways and be accessed cell with return step S220；Or it can be with return step
210, choose user to be adjusted again in different ways.
Optionally, in the embodiment of the present invention, step S220 is calculating the corresponding local resource load letter of user to be adjusted
It, can be involved by the corresponding local resource load information of user to be adjusted after the current relative load of each cell involved in ceasing
And each cell in choose most light several cells of relative load as target access cell.
Correspondingly, it can successively choose a target according to the sequence of relative load from small to large in step S230 and connect
Enter cell, user to be adjusted is switched to carrier wave polymerization system after the target access cell currently chosen by calculation from current service cell
The surplus resources total amount of system, if calculation after surplus resources total amount be less than or equal to carrier aggregation system it is current surplus resources it is total
Amount then chooses next target access cell.If the surplus resources total amount after calculation is greater than the current residue of carrier aggregation system
Total resources can then determine that the target access cell currently chosen is that final target accesses cell, and generates cell switching
Configuration data.
From the description above as can be seen that in carrier aggregation system load-balancing method provided in an embodiment of the present invention, needle
Load to the carrier aggregation system of the existing situation for being unable to satisfy and being coexisted there are carrier aggregation subdistrict and non-carrier aggregation cell
The problem of equalization requirement, the local resource load information of each user is collected in each base station from carrier aggregation system in advance；It is monitoring
When to load balancing trigger condition, according to local resource load information, from being in main carrier cell, secondary carrier cell and non-load
Wave aggregation cell, which collectively covers, chooses user to be adjusted in the boundary user in range, and chooses the corresponding mesh of the user to be adjusted
Tag splice enters cell；Then it issues cell to user current service cell to be adjusted and the target access corresponding base station of cell and cuts
Configuration data is changed, so that base station carries out resource reconfiguration according to cell handover configurations data, completes user to be adjusted from current service
Switching of the cell to target access cell.In this way, cell reselection or switching by boundary user, adjustable carrier wave polymerization system
The load of cell in system avoids the occurrence of cell-overload, ensures that the carrier wave that carrier aggregation subdistrict and non-carrier aggregation cell coexist is poly-
The load balancing of collaboration system, improves the resource utilization of carrier aggregation system.
The carrier aggregation system load-balancing method provided based on the above embodiment, with reference to Fig. 3, it illustrates according to this hair
The structural schematic diagram of the carrier aggregation system load balancing apparatus of bright one embodiment.In practical application, carrier aggregation system is negative
Carrying balancer can be specially to be exclusively used in carrier aggregation system load balancing in OMC in carrier aggregation system shown in Fig. 1
Application apparatus.
As shown in figure 3, the carrier aggregation system load balancing apparatus 300 of user terminal provided in an embodiment of the present invention can be with
It include: user's selection unit 301, target access cell selection unit 302 and Load Balance Unit 303 to be adjusted.
Wherein, user's selection unit 301 to be adjusted is for being polymerize when monitoring load balancing trigger condition according to carrier wave
Each corresponding local resource load information of boundary user, chooses user to be adjusted from boundary user in system.
Wherein, boundary user is main carrier cell, secondary carrier cell and non-carrier polymerization in carrier aggregation system
Cell collectively covers the user in range.
Wherein, load balancing trigger condition include at least it is following any one:
Preset load balancing period reaches, accesses new user in carrier aggregation system, is old in carrier aggregation system
It is more than given threshold that user, which exits, the data service bandwidth demand of accessed user changes in carrier aggregation system.
In the embodiment of the present invention, the corresponding local resource load information of user may include: user in current service cell
Occupied local resource, current service cell and neighboring community respectively current load information and user in current service
Corresponding Reference Signal Received Power RSRP value in cell and neighboring community.
Wherein, the local resource occupied includes at least following a kind of: PRB, user's saturation；Load information includes at least such as
Lower one kind: cell PRB occupancy, online user number, online user's uplink and downlink flow.
Target accesses cell selection unit 302 according to the corresponding local resource load information of user to be adjusted, to be adjusted
Target is chosen in each cell involved in the corresponding local resource load information of user accesses cell.
Load Balance Unit 303 is for generating cell handover configurations data, and it is small to be issued to user's current service to be adjusted
Area and target access the corresponding base station of cell, so that base station carries out resource reconfiguration according to cell handover configurations data, complete
User to be adjusted accesses the switching of cell from current service cell to target.
In the embodiment of the present invention, user's selection unit 301 to be adjusted can be according to boundary user each in carrier aggregation system
Corresponding local resource load information determines each boundary user corresponding RSRP value in main carrier cell；According to each side
Boundary user corresponding RSRP value in main carrier cell, choosing one or more boundary users is user to be adjusted.
Optionally, user's selection unit 301 to be adjusted can be according to the corresponding weight of cell each in carrier aggregation system, load
Each corresponding local resource load information of boundary user in wave paradigmatic system calculates each boundary in carrier aggregation system and uses
Local resource total amount occupied by family；According to local resource total amount occupied by each boundary user, one or more sides are chosen
Boundary user is user to be adjusted.
In the embodiment of the present invention, target access cell selection unit 302 can determine the corresponding cell money of user to be adjusted
Each cell involved in the load information of source；For each small involved in the corresponding local resource load information of user to be adjusted
Area determines the current load information of the cell；The current load information of each cell is compared, cell most lightly loaded is chosen
Cell is accessed as target.
Optionally, target access cell selection unit 302 can according to the corresponding weight of cell each in carrier aggregation system,
The corresponding local resource load information of user to be adjusted, calculates the current phase of each cell involved in the local resource load information
To load；Most light small of relative load is chosen from each cell involved in the corresponding local resource load information of user to be adjusted
Area accesses cell as target.
In the embodiment of the present invention, Load Balance Unit 303 can be calculated according to the weight of cell each in carrier aggregation system
The current local resource total amount of carrier aggregation system；According to the weight of cell each in carrier aggregation system, calculate use to be adjusted
Family switches to the local resource total amount of carrier aggregation system after target access cell from current service cell；If the cell after calculation
Total resources is less than the current local resource total amount of carrier aggregation system, then generates cell handover configurations data.
Optionally, target access cell selection unit 302 according to the corresponding weight of cell each in carrier aggregation system, wait adjust
The corresponding local resource load information of whole user calculates current relatively negative of each cell involved in the local resource load information
It carries；Most light several of relative load are chosen from each cell involved in the corresponding local resource load information of user to be adjusted
Cell accesses cell as target.In this way, sequence of the Load Balance Unit 303 according to relative load from small to large, successively chooses
One target accesses cell, after user to be adjusted is switched to the target access cell currently chosen by calculation from current service cell
The local resource total amount of carrier aggregation system, if to be greater than or equal to carrier aggregation system current for local resource total amount after calculation
Local resource total amount then chooses next candidate target access cell.If the local resource total amount after calculation polymerize less than carrier wave
The current local resource total amount of system can then determine that the target access cell currently chosen is that final target accesses cell,
And generate cell handover configurations data.
It should be appreciated that in all units recorded in carrier aggregation system load balancing apparatus 300 and the method for Fig. 2 description
There are corresponding relationships for step.It is negative to be equally applicable to carrier aggregation system for the operation above with respect to method description and feature as a result,
Balancer 300, unit wherein included are carried, details are not described herein.
With reference to Fig. 4, it illustrates the entity structure schematic diagrames of electronic equipment according to an embodiment of the invention.Such as Fig. 4
Shown, which may include: processor (processor) 401, memory (memory) 402 and bus 403,
In, processor 401, memory 402 completes mutual communication by bus 403.Processor 401 can call memory 402
In computer program, to execute method provided by above-mentioned embodiment illustrated in fig. 2, for example,
When monitoring load balancing trigger condition, provided according to the corresponding cell of boundary user each in carrier aggregation system
Source load information chooses user to be adjusted from boundary user；Wherein, boundary user is that main carrier is in carrier aggregation system
Cell, secondary carrier cell and non-carrier aggregation cell collectively cover the user in range；It is corresponding small according to user to be adjusted
Area resource load information chooses target access from each cell involved in the corresponding local resource load information of user to be adjusted
Cell；Generate cell handover configurations data, and be issued to user current service cell to be adjusted and target access cell it is respectively right
It is small from current service to complete user to be adjusted so that base station carries out resource reconfiguration according to cell handover configurations data in the base station answered
Switching of the area to target access cell.
The embodiment of the present invention provides a kind of non-transient computer readable storage medium, non-transient computer readable storage medium
Computer program is stored, computer program makes computer execute method provided by above-mentioned embodiment illustrated in fig. 2, for example,
When monitoring load balancing trigger condition, provided according to the corresponding cell of boundary user each in carrier aggregation system
Source load information chooses user to be adjusted from boundary user；Wherein, boundary user is that main carrier is in carrier aggregation system
Cell, secondary carrier cell and non-carrier aggregation cell collectively cover the user in range；It is corresponding small according to user to be adjusted
Area resource load information chooses target access from each cell involved in the corresponding local resource load information of user to be adjusted
Cell；Generate cell handover configurations data, and be issued to user current service cell to be adjusted and target access cell it is respectively right
It is small from current service to complete user to be adjusted so that base station carries out resource reconfiguration according to cell handover configurations data in the base station answered
Switching of the area to target access cell.
In addition, the logical order in above-mentioned memory can be realized and as independence by way of SFU software functional unit
Product when selling or using, can store in a computer readable storage medium.Based on this understanding, of the invention
Technical solution substantially the part of the part that contributes to existing technology or the technical solution can be with software in other words
The form of product embodies, which is stored in a storage medium, including some instructions use so that
One computer equipment (can be personal computer, server or the network equipment etc.) executes each embodiment side of the present invention
The all or part of the steps of method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can store journey
The medium of sequence code.
The embodiment of base station described above is only schematical, wherein the unit as illustrated by the separation member
It may or may not be physically separated, component shown as a unit may or may not be physics list
Member, it can it is in one place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of the modules achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creativeness
Labour in the case where, it can understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of carrier aggregation system load-balancing method characterized by comprising
When monitoring load balancing trigger condition, provided according to the corresponding cell of boundary user each in the carrier aggregation system
Source load information chooses user to be adjusted from boundary user；Wherein, the boundary user is in the carrier aggregation system
Middle main carrier cell, secondary carrier cell and non-carrier aggregation cell collectively cover the user in range；
It is negative from the corresponding local resource of the user to be adjusted according to the corresponding local resource load information of the user to be adjusted
Information carrying, which ceases, chooses target access cell in related each cell；
Cell handover configurations data are generated, and are issued to the user current service cell to be adjusted and target access cell
It is completed described wait adjust so that the base station carries out resource reconfiguration according to the cell handover configurations data corresponding base station
Whole user accesses the switching of cell from the current service cell to the target.
2. the method according to claim 1, wherein the load balancing trigger condition includes at least as follows arbitrarily
It is a kind of:
The preset load balancing period reaches, accesses new user, the carrier aggregation system in the carrier aggregation system
It is more than given threshold that middle old user, which exits, the data service bandwidth demand of accessed user changes in the carrier aggregation system.
3. the method according to claim 1, wherein described according to boundary user each in the carrier aggregation system
Corresponding local resource load information, chooses user to be adjusted from boundary user, comprising:
According to the corresponding local resource load information of boundary user each in the carrier aggregation system, each boundary user is determined
The corresponding Reference Signal Received Power RSRP value in main carrier cell；The local resource load information includes: that user is working as
Corresponding RSRP value on preceding serving cell and neighboring community；
According to each boundary user, corresponding RSRP value, selection one or more boundary users are use to be adjusted in main carrier cell
Family.
4. the method according to claim 1, wherein described according to boundary user each in the carrier aggregation system
Corresponding local resource load information, chooses user to be adjusted from boundary user, comprising:
It is respectively right according to each boundary user in the corresponding weight of cell each in the carrier aggregation system, the carrier aggregation system
The local resource load information answered calculates local resource total amount occupied by each boundary user in the carrier aggregation system；
The local resource load information includes: local resource of the user occupied by current service cell；
According to local resource total amount occupied by each boundary user, choosing one or more boundary users is user to be adjusted.
5. the method according to claim 1, wherein described according to the corresponding local resource of the user to be adjusted
It is small to choose target access from each cell involved in the corresponding local resource load information of the user to be adjusted for load information
Area, comprising:
According to the corresponding weight of cell each in the carrier aggregation system, the corresponding local resource load letter of the user to be adjusted
Breath, calculates the current relative load of each cell involved in the local resource load information；Wherein, the local resource load letter
Breath includes: user current service cell and neighboring community respectively current load information；
It is most light that relative load is chosen from each cell involved in the corresponding local resource load information of the user to be adjusted
Cell accesses cell as the target.
6. -5 any method according to claim 1, which is characterized in that before the generation cell handover configurations data,
Include:
According to the weight of cell each in the carrier aggregation system, it is total to calculate the current surplus resources of the carrier aggregation system
Amount；
According to the weight of cell each in the carrier aggregation system, calculation switches the user to be adjusted from current service cell
The surplus resources total amount of the carrier aggregation system after to target access cell；
Correspondingly, the generation cell handover configurations data, comprising:
If the surplus resources total amount after calculation is greater than the current surplus resources total amount of the carrier aggregation system, generates cell and cut
Change configuration data.
7. method according to claim 4 or 5, which is characterized in that
The weight of the main carrier cell is higher than the weight of the secondary carrier cell, and the weight of the secondary carrier cell is higher than non-load
The weight of wave aggregation cell.
8. a kind of carrier aggregation system load balancing apparatus characterized by comprising
User's selection unit to be adjusted, when for monitoring load balancing trigger condition, according to each in the carrier aggregation system
The corresponding local resource load information of boundary user, chooses user to be adjusted from boundary user；Wherein, the boundary is used
Family is that main carrier cell, secondary carrier cell and non-carrier aggregation cell collectively cover range in the carrier aggregation system
Interior user；
Target accesses cell selection unit, for according to the corresponding local resource load information of the user to be adjusted, from described
Target, which is chosen, in each cell involved in the corresponding local resource load information of user to be adjusted accesses cell；
Load Balance Unit for generating cell handover configurations data, and is issued to the user current service cell to be adjusted
The corresponding base station of cell is accessed with the target, so that the base station carries out resource according to the cell handover configurations data
The switching that the user to be adjusted accesses cell from the current service cell to the target is completed in reconfiguration.
9. a kind of electronic equipment, which is characterized in that including processor, memory and bus, in which:
The processor, the memory complete mutual communication by bus；
The processor can call the computer program in memory, to execute as described in claim 1-7 any one
The step of method.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is by processor
It realizes when execution such as the step of claim 1-7 any one the method.
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| CN112788674A (en) * | 2019-11-07 | 2021-05-11 | 维沃移动通信有限公司 | Switching method, configuration method, terminal and network equipment |
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| CN102264141A (en) * | 2010-05-25 | 2011-11-30 | 华为技术有限公司 | Method, device and system for processing multi carrier |
| CN102264093B (en) * | 2010-05-31 | 2015-09-16 | 株式会社Ntt都科摩 | A kind of changing method, mobile terminal and base station |
| CN104427552B (en) * | 2013-09-02 | 2018-03-30 | 普天信息技术研究院有限公司 | A kind of method of load balancing in carrier aggregation |
| CN104301948B (en) * | 2014-09-05 | 2017-12-22 | 中国联合网络通信集团有限公司 | Cell switching method and device in a kind of carrier aggregation network |
| CN104363619B (en) * | 2014-10-28 | 2017-09-19 | 北京邮电大学 | The load-balancing method and system of a kind of mobile radio communication |
| CN105163351B (en) * | 2015-10-21 | 2018-09-18 | 重庆邮电大学 | Multiple cell resource allocation methods based on efficiency in a kind of LTE system |
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