CN106879022A - The resource allocation methods and device in the Base Band Unit pond of wireless access network - Google Patents
The resource allocation methods and device in the Base Band Unit pond of wireless access network Download PDFInfo
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- CN106879022A CN106879022A CN201510916679.3A CN201510916679A CN106879022A CN 106879022 A CN106879022 A CN 106879022A CN 201510916679 A CN201510916679 A CN 201510916679A CN 106879022 A CN106879022 A CN 106879022A
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000013468 resource allocation Methods 0.000 title claims description 17
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- 230000008569 process Effects 0.000 claims abstract description 12
- 238000012545 processing Methods 0.000 claims description 35
- 230000005012 migration Effects 0.000 claims description 11
- 238000013508 migration Methods 0.000 claims description 11
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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
- H04W28/0289—Congestion control
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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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Abstract
The invention provides method, the device of the process resource that Base Band Unit pond is distributed in the access network of cordless communication network, wherein, Base Band Unit pond corresponds to multiple virtual base stations, and the distribution of resource realizes that the load moved is in units of virtual base station by moving load.The present invention no longer sticks to the distribution of resource in small, broken bits from a new angle, but changes to move load, and the load once moved always is least unit with a virtual base station, that is, once moving a virtual base station or multiple virtual base stations.It is these load all the time all in the resource in the virtual base station distribution Base Band Unit pond for changing in most reasonable and feasible mode by means of the invention it is possible to the more effectively substantial amounts of virtual base station corresponding to organization and management Base Band Unit pond.
Description
Technical field
The present invention relates to the resource allocation in wireless communication field, more particularly to the resource pool of cloud access net.
Background technology
Centralized processing in cloud access net (Cloud-RAN) has been considered as future wireless system net
The important solutions of network.In the nearest document on the 5th generation wireless communication technology (5G),
It is also a topic for hot topic to focus on.This new RAN frameworks be mainly characterized by concentrate
Base Band Unit (BBU) pond of formula and distributed remote radio-frequency maser (RRH).Based on what is focused on
RAN can solve many challenges that operator is faced with, and such as base station number is big, power consumption is high, fund branch
Raising, base station utilization rate are low rapidly to go out and run expenditure.
To be embodied as based on the RAN for focusing on, all of base station both corresponds to identical BBU ponds,
Shared in order to the disposal ability between base station.The observation of industry shows, the different districts being geographically separated
Load it is very low with the correlation of the relation of time, that is, these cells not necessarily reach each simultaneously
From peak load, also not necessarily simultaneously reach respective valley load.As a result,
The process resource collected in BBU ponds can be shared between base station, it is possible to the corresponding income of expection, make
Obtaining operator can provide less processing unit (for example, CPU) to reduce input, or close
Idle processing unit is reducing energy consumption.Research shows, the gain in BBU ponds can reach 22% with
On.
BBU ponds can correspond to hundreds of base stations, and these base stations are realized by real-time virtual platform
Mutually isolated, this allows even more base stations in terms of ten to operate on same main frame simultaneously.How
The so many base stations of organization and management and how for these load real-time changes base station distribution resource, be
The huge challenge that cloud access wire side faces.
The content of the invention
The purpose of the embodiment of the present invention be desirable to provide a kind of distribution method in resource, device and
System, to solve the above mentioned problem in the presence of especially cloud access net.
According to the first aspect of the invention, there is provided distribute base in a kind of access network of cordless communication network
The method of the process resource in tape cell pond, wherein, the Base Band Unit pond corresponds to multiple virtual base stations,
Characterized in that, the distribution of the resource is realized by moving load, the load moved is with void
Plan base station is unit.
Further, multiple virtual base stations are served in the Base Band Unit pond by multiple host, wherein,
The distribution of the resource moves load between being included in the multiple host.
Further, the Base Band Unit passes through at least one host services in multiple virtual base stations, and
Every main frame has multiple processing units, and the distribution of the resource is included in the multiple of main frame
Load is moved between processing unit.
Further, the multiple virtual base stations based on coordinated multipoint transmission are arranged at by same main frame
Same processing unit is supported.
Further, the method includes at least one in the following：Each main frame is worked as into front bearing
Load is defined as overload by lotus compared with a first threshold higher than the main frame of the first threshold
Main frame；The current load of each main frame is compared with a Second Threshold, and by load less than described
The main frame of Second Threshold is defined as underload main frame.
Further, the method also includes：For underload main frame determines the object main frame for load migration；
Expense according to needed for load migration, judges load is moved into the object main frame from the underload main frame,
Or load is moved into the underload main frame from the object main frame.
According to the second aspect of the invention, there is provided a kind of to be distributed in the access network of cordless communication network
The equipment of the process resource in Base Band Unit pond, wherein, the Base Band Unit pond corresponds to multiple virtual bases
Stand, it is characterised in that the equipment realizes described resource allocation by moving load, described to remove
The load of shifting is in units of virtual base station.
Further, multiple virtual base stations are served in the Base Band Unit pond by multiple host, wherein,
The equipment includes first module, is configured to move load between the multiple host described to realize
Resource allocation.
Further, the Base Band Unit pond passes through at least one host services in multiple virtual base stations,
And every main frame has multiple processing units, the equipment includes second unit, and the second unit is matched somebody with somebody
It is set to and moves load to realize the resource allocation between a multiple processing unit for main frame.
Further, the equipment carries out the resource allocation and causes the multiple based on coordinated multipoint transmission
Virtual base station is arranged to be supported by the same processing unit of same main frame.
Further, the first module is configured to, and execution includes at least one in the following：
The current load of each main frame is compared with a first threshold, and is higher than first threshold by load
The main frame of value is defined as overloading main frame；The current load of each main frame is compared with a Second Threshold,
And load is defined as underload main frame less than the main frame of the Second Threshold.
Further, the first module is additionally configured to：For underload main frame is determined for load migration
Object main frame；Expense according to needed for load migration, judges load is moved into institute from the underload main frame
Object main frame is stated, or load is moved into the underload main frame from the object main frame.
Further, the first module is additionally configured to：For overload main frame is determined for load migration
Object main frame；By it is described overload main frame at least one processing unit on whole load move
On one processing unit of the object main frame.
According to the third aspect of the invention we, there is provided the Base Band Unit pond in a kind of cordless communication network,
It is characterised in that it includes aforementioned device.
According to the fourth aspect of the invention, there is provided the access net system in a kind of cordless communication network,
It is characterised in that it includes foregoing Base Band Unit pond.
The present invention from a new angle, no longer stick to the distribution of resource in small, broken bits, but change with
Load is moved, and the load once moved always is least unit with a virtual base station, that is, one
It is secondary to move a virtual base station or multiple virtual base stations.By means of the invention it is possible to more effectively organize
With the substantial amounts of virtual base station corresponding to management Base Band Unit pond, with most rationally and feasible mode is as this
A little load are all the time all in the resource in the virtual base station distribution Base Band Unit pond for changing.
Brief description of the drawings
For the method and apparatus for describing that foregoing and other advantages of the present invention and feature can be obtained, will with
Illustrate to carry out more Wen Xiang to the various aspects being briefly described above in lower reference specific embodiment and accompanying drawing
Thin description.It should be appreciated that the simply exemplary embodiments of the invention described by these pictures, therefore
It is not considered as limiting the scope of the present invention.
Fig. 1 is a simplified diagram of C-RAN.
Fig. 2 a-2b are to distribute base band list in access network according to the cordless communication network of the embodiment of the present invention
The schematic diagram of the equipment of the resource in first pond.
Fig. 3 is the simplified diagram moved that virtual base station is realized in a main frame as load.
Fig. 4 is the virtualization schematic diagram of the radio protocol stack according to embodiments of the invention.
Fig. 5 is showing for the subgroup of the radio protocol stack realization of the virtualization according to embodiments of the invention
It is intended to.
Fig. 6 shows the differentiation of overload main frame and underload main frame in embodiments of the present invention.
Specific embodiment
Each embodiment of the invention is described in detail below in conjunction with accompanying drawing.
Fig. 1 shows an applicable simplified diagram of C-RAN of the present invention.Wherein, it is concise to rise
See the 5 virtual base station 2-6 that illustrate only in the wireless access network 0, these virtual base stations have respectively
Have long-distance radio frequency unit RRU to realize the intercommunication with Base Band Unit pond 1, the RRU of virtual base station with
Connected by optical fiber between Base Band Unit pond.These and other aspects of the invention will emphasis inquire into
It is exactly that the service traffics how to tackle on the 2-6 of base station of Base Band Unit pond 1 change and give the band of Base Band Unit pond 1
The load change come, so as to realize that hardware cost, energy cost (such as electric power) are distributed rationally.
Resource Allocation Formula provided in an embodiment of the present invention is based on such background, i.e. Base Band Unit
The resource required for virtual base station 2-6 corresponding to pond 1 is time-varying, then Base Band Unit pond 1
Between main frame, and/or therefore the load of the processing unit of certain main frame be presented undesirable state sometimes.
In order to be more convenient to understand, learn about why the resource requirement of these virtual base stations is had with the time first
The characteristics of change.
The mobile service flow (corresponding to required resource) of virtual base station has double attribute：Cycle
Property and randomness.
● periodically：Mobile service flow has similar periodically change in the interval of 24 hours.
For example, in city, due to the office hours, the factor such as non-office hours may be from early 9
Point is higher to late 11 flows, and then relatively low at midnight.
● randomness：It will be appreciated by those skilled in the art that a load for base station is always in dynamic change,
Main cause includes change, the change of user and channel quality and the clothes of active users
The change of quantity of being engaged in.It is impossible to want the service traffics of Accurate Prediction next moment.
Transmission Time Interval (TTI) is one millisecond, that is, the change for processing load occurs extremely short
In time scale (in units of millisecond), but, completed in so small time scale
The dynamically distributes of resource are impossible.
One of problem that cloud access net 0 is proposed, is how to be managed on same main frame and supports many
Individual virtual base station.Discussed that by radio protocol stack (wireless stack) be multiple subtasks in the industry,
Such as physical layer, MAC layer accelerator, on a machine, one group of virtual base station for the treatment of it is same
Subtask.That is, the different subtasks of same virtual base station may be assigned to different main frames
Complete up.It was found by the inventors of the present invention that do so there are the following problems：
● realize that the synchronization between main frame is extremely difficult：Since a task for virtual base station may divide
On different main frames, the isochronous schedules between physical layer process and MAC layer can be very tired for cloth
It is difficult.If deploying multipoint cooperative (Coordinated Multiple between multiple base stations
Points Transmission/Reception, CoMP), then it is synchronous between different base station
It is a big problem.
● there are substantial amounts of signaling and data exchange between the subtask of same base station, and in different masters
Above-mentioned exchange potential between machine must cause between main frame more communication resource expenses on link,
Increase postpones, and reduces systematic function.
In the Resource Allocation Formula that the present inventor is proposed, to move load as embodiment mode,
And the base unit of the load moved is a virtual base station.Then, equivalent to allocating resources to one
Base station, without being allocated to a task or a user equipment (UE), thus, it is possible to avoid
Two problems stated.
Moreover, embodiments of the invention are also presented following advantage.Due in distribution Base Band Unit
During resource in pond 1, by as an entirety, this is caused from from the point of view of system a virtual base station
Come, the change in resources curve relative smooth needed for each load (that is, base station).Because,
In the administrative cell of virtual base station, the treatment that the good channel quality of some Consumer's Experiences is caused
Load is high, and the channel quality of other users experience difference causes low treatment load, and different users to set
Standby to use different services, these both contribute to smooth out demand of the virtual base station to process resource.
But if to user equipment or subtask, then huge load fluctuation will for treatment (calculating) resource allocation
The stage born acutely is difficult to scheduling of resource.
Therefore, the present invention is pointedly provided needs a kind of rational Dynamic Resource Allocation for Multimedia mechanism, according to
One embodiment, there is provided for the equipment of this resource allocation, as shown in Figure 2.This resource point
The Pooled resources of two-layer, i.e. ground floor can be divided to manage (Pool Resource Manager, PRM) with scheme
And Local resource management (Local Resource Manage, LRM) of the second layer.It may be noted that
It is that PRM and LRM can be used alone, and also may be used in combination.According to the letter that inventor is grasped
Breath, being perhaps used in combination helps to realize optimal effect.In one example, PRM is responsible for treatment
Load change when long, and LRM be responsible for process a main frame in short-term/transient load.
The load that the purpose of PRM is desirable to carry out between main frame merges, the master that reduction is used in idle
Machine number (or load convergence), so as to extend main frame service life, reducing energy consumption.And when busy
Section, PRM can will then overload or the virtual base station that is serviced of main frame of heavy duty will be moved by control
Under another main frame.That is, the main task that the Major Function of PRM is Pooled resources manager is negative
The migration of virtual base station between duty main frame.
By above-mentioned mechanism, service traffics change can in time scale greatly and small time scale
It is properly processed, pond gain (pooling gain) is it is achieved that performance is ensured.
According to this example, equipment 20 can include first module 22, for as needed, in many masters
Load is moved between machine.Equipment 20 can also include second unit 24, for as needed, one
Load is moved between multiple processing units in platform main frame.It should be clear that equipment 20 can also only have
There is first module or only there is second unit, the present invention is not required for having the two concurrently.
With network, the integrated and miniaturization of computer equipment, although show equipment 20 in figure
And two functional units being included in, it will be appreciated by those skilled in the art that the function of equipment 20
Multiple devices can be distributed in, for example, the multiple corresponding to Base Band Unit pond 1 shown in Fig. 2 b is main
On machine a-d.Wherein, because first module 22 needs the resource allocation between responsible different main frames, because
This can only configure the unit when realizing on a main frame, and without the redundancy in multiple main frames
Ground configuration, certainly, the configuration of this redundancy is also within the protection domain of appended claims.
Reference picture 2a-2b, BBU ponds 1 have multiple powerful main frames, lead on every mainboard of main frame
Often there are multiple central processing units (CPU), each CPU carries multiple CPU cores.Research display, one
Platform main frame can support that at least tens radio protocol stacks, and multiple protocol stacks are shared in the way of the time-division
One core.These main frames are connected with each other by express network.Second unit 24a-24d on each main frame
Periodically by each processing unit on main frame, (here, processing unit can refer to CPU, it is also possible to refer to CPU
On a core) service condition report to first module 22, second unit 22 understand the overall situation money
Source service condition.In busy, first module 22 by these virtual base stations with a virtual base station be base
Our unit is distributed on each main frame, to ensure performance and processing speed, and in idle, first module
22 are merged on a small amount of main frame these virtual base stations, and then idle main frame can shut down or standby
With reducing energy consumption.
It is preceding to have addressed, time of the treatment load that the service traffics of virtual base station are brought at 24 hours
Have periodically on yardstick, and then have randomness in small time scale.
If the treatment load of a main frame is too high, first module 22 understands some for being responsible for the main frame
Virtual base station is moved onto the relatively low main frame of load.In idle, if a treatment for main frame is carried
Lotus is very low, and first module 22 can be by control, all virtual base stations that this main frame is supported
All move on other main frames, and this main frame just can temporarily shut down.That is, implementation of the invention
In example, the load that inventor's suggestion is carried out in units of virtual base station is moved, rather than for a task increases
Add deduct under absorbed timeslice.
According to a preferred embodiment, because the scheduling of task is completed based on each CPU core
, when radio protocol stack is for virtualization, the radio protocol stack of all shared identical CPU cores is all
Must be in same fictitious host computer.If they are positioned in the different virtual of sharing CPU core
On machine, the operating system of bottom will be appreciated that multiple tasks, and can be adjusted with the cycle more than 1 millisecond
Spend these tasks, it would be possible to radio protocol stack can be caused to fail.Virtual base in embodiments of the invention
That stands moves different from the scheduling of resource and distribution mechanism in virtual platform and linux system tradition,
Frequently another problem of task switching is to cause very important expense, wastes substantial amounts of place
The reason device time.
The target of Pooled resources management (PRM) that first module 22 is realized is between idle execution main frame
Load merge (load convergence), to reduce the quantity of main frame used.In busy, first module 22
Some virtual base stations are moved to idle machines from busy main frame.The main of first module 22 is appointed
Business is that the load carried out between main frame moves decision-making, and the selection of the destination host that load is moved, control is virtual
Moved as load base station.
The target of the location resource allocation (LRM) that second unit 24a-24d is realized is that treatment is instantaneous to be carried
Lotus is fluctuated, and between processing unit in main frame (for example, between CPU, and/or CPU core)
Between load balance.Its main task is that the load carried out in main frame moves decision-making, and load is moved
Object processing unit selection, and control one main frame inside load move.
The work of second unit 24a-24d is again as shown in figure 3, certain main frame is (such as main shown in Fig. 2 b
Overall load on machine b) is not weighed, but between different processing units, such as CPU core 32-38,
Load distribution is uneven, for example, the load of core 32 is very low, and the load of core 36 is too high, therefore,
Some second units 24b by the machine, (move on main frame b) by the original virtual base station supported by core 36
The minimum core 32 of other cores, such as load, realizes good overall performance.In order to be located in very well
Reason transient load fluctuation, the cycle that each second unit carries out above-mentioned load scheduling is shorter than first module and enters
The cycle of the load scheduling between row main frame.
Specifically, second unit 24a-24d monitors the service condition of each CPU core of the machine respectively, and
Periodically reported to first module 22.In busy, if a payload processor for main frame is higher than one
Threshold value higher, the then load that can be triggered between main frame is moved.In idle, if a CPU for main frame
Core load is less than lower threshold, and all virtual base stations on this main frame will be distributed to some other master
Machine, and can then be turned off to energy-conservation as the main frame in source of moving out.
Hereinafter, illustrate these and other aspects of the invention in order to more full and accurate, to radio protocol stack plus
To introduce, wherein, reference picture 4-5.
BBU ponds 1 are built using general processing platform, and realizes simplified L2 stacks.Use Linux
Container (LXC) virtualizes radio protocol stack.LXC is that a kind of new lightweight is virtual
Change technology, it is allowed to run multiple independent virtual systems on a single server.It provides an appearance
Device is to local system and the complete logic isolation of every other container.Test shows that LXC almost can
The real-time performance of primary linux system is enough reached, this is for the base band in the wireless access network in 5G
Signal transacting is most important.Another important advantage of LXC is, it is possible to achieve on different containers
Memory sharing between two or more processes of operation, and this to be other virtual platforms do not support
's.This advantage causes that fast signal and data between virtual base station are exchanged into for reality, carries significantly
The performance of CoMP high.
In order to ensure real-time performance, each CPU core only carries a container, multiple wireless protocols
Stack (corresponding to multiple virtual base stations) is operated in the container, shares same CPU core, such as Fig. 4
It is shown.
Further, it is also possible to base station subgroup is defined, as shown in Figure 5.It is desirable that belonging to same subgroup
Base station can be supported by same CPU core, to reduce the data exchange institute between CoMP base stations
The delay for bringing.When load is allowed, multiple subgroups can also again share same CPU core, constitute
The base station of subgroup can also change according to the requirement of CoMP performances.For example, a base station can
To be before the member of the first subgroup, but in subsequent time, it is again into the member of the second subgroup.
Fig. 6 shows overload of the invention and underload a kind of exemplary differentiating method.Wherein,
First threshold T1 and relatively low Second Threshold T2 higher is defined, is overload on first threshold,
It is underload under Second Threshold, it is moderate to be considered as load between two threshold values.It is of the invention
One embodiment, only overloading main frame and the load of underload main frame needs consideration to be conditioned.
Illustrate that the load under present subject matter is moved below in conjunction with several specific examples.Wherein will
Moving between being related to main frame and in main frame.Hereinafter illustrate reference picture 2a-2b
Load between the main frame that example 1. is triggered by underload main frame is moved
Cpu usage report based on each main frame a-d obtained from each second unit 24a-d,
Be compared for the treatment load of each main frame and first threshold and Second Threshold by first module 22.It is false
Determining All hosts has identical disposal ability.If main frame a is underload, can be found for main frame a
One object main frame, this object main frame can preferably realize following purpose：
That is, the existing whole load on each core of main frame a, can move on to a certain of object main frame
On individual core.Existing load on these cores of main frame a can move on to one or more cores of object main frame
On, but the preferred fictitious host computer ensured originally on a core, after moving still on a core.
Object main frame, such as main frame b is determined, first module 22 may decide that the institute on main frame a
There is virtual base station to move on some or several cores of main frame b, or by all void on main frame b
Intend base station and move main frame a, this is depended on, and both direction is required respectively to move cost, typically,
It can take out of the virtual base station number on main frame to move cost, or takes out of all base stations on main frame
Total load requirements.When virtual base station is moved to main frame a from main frame b, it is also possible to which consideration will be in master
Virtual base station on the same core of machine b is moved on the same core of main frame a.Certainly, this area skill
Art personnel can also be adjusted to the allocative decision of this refinement, and these change case are still in the application
Within the protection domain of appended claims definition.
If first module 22 saves each main frame and the load information of each core, then complete
After above-mentioned load is moved, it is preferable that first module 22 also updates the respective host of preservation and its each
The load information of core.
After moving between first module 22 completes main frame, second unit can also enter as needed
Load reallocation between row processing unit such as core so that core as much as possible is participated on a main frame
Load sharing
In example 1, if the base station for meeting aforementioned condition could not be found, it is determined that by main frame a
Load is moved on multiple other main frames.Preferably, after moving, originally in a core of main frame a
On multiple bases war can also be on destination host a core.
If first module 22 saves each main frame and the load information of each core, then complete
After above-mentioned load is moved, it is preferable that first module 22 also updates the respective host of preservation and its each
The load information of core.After moving between first module 22 completes main frame, second unit can be with
The load reallocation between processing unit such as core is carried out as needed so that on a main frame as far as possible
Many core participates in load sharing
Load between the main frame that example 2. is triggered by overload main frame is moved
Cpu usage report based on each main frame a-d obtained from each second unit 24a-d,
Be compared for the treatment load of each main frame and first threshold and Second Threshold by first module 22.It is false
Determining All hosts has identical disposal ability.If main frame c overloads, then need thereon
A little virtual base stations move other main frames.Because the multiple base stations being operated under CoMP patterns are in main frame
Same core is located on c, then, after moving, preferably they are also by the same of destination host
Ensureing the performance of CoMP on individual core.After moving between first module 22 completes main frame,
Unit two can also as needed carry out the load reallocation between processing unit such as core so that one
Core as much as possible participates in load sharing on main frame.
The process for taking out of load from overload main frame c is summarized as follows：
First, the difference between the load and first threshold of calculating main frame c.
Then, core of all load on main frame c higher than the difference is found out, and therefrom compares load
A minimum core, it is assumed that its load is Lm。
Then, being found out on the main frame for using at other can receive load LmCore, this was searched
Journey can be based on Best-Fit/First-Fit algorithms.
If have found having such core on other main frames, by LmMove on the core for finding, and
Respective host and the load information of core that renewal is stored.Preferably, it is also single by second on main frame c
First 24c come carry out the load between local core reallocation, for example, current load is higher therefrom
One or more cores are moved out load to one or more relatively low cores of load.
If not found on other main frames can accommodate LmCore, then start one in shutdown
Or the main frame of resting state, and by LmMove the main frame.And update the load of associated host and core
Information.
The process that load is moved between a different processing units for main frame addressed before example 3. will
Further introduced in this example
Without loss of generality, in order in a main frame inner equilibrium load, second unit can be from most
The core of top load is selected virtual base station and is moved on a minimum core of load.It is, of course, preferable to
Ground, in above-mentioned moving, belonging to the virtual base station of same subgroup can move to ensure that they begin together
Correspond to a core eventually, it is ensured that the performance of CoMP
Specifically, (such as main frame d) obtains the load information of all cores on this main frame to main frame, and counts
Calculate average value.
It is then determined wherein load highest core, and subgroup list thereon.
It is determined that the wherein minimum core of load, and subgroup list thereon.
Extra load required for calculating the minimum core of filling load, can specifically be subtracted with the average value
Remove the difference gap obtained by the load of the core.
The corresponding load L of each subgroup on assumed (specified) load highest coreSubDifference is exhausted between gap
To value x.
Determine to obtain in each subgroup on load highest that core that subgroup of minimum x values.
Virtual base station in that minimum subgroup of x values on load highest core is moved into load most
On that low core.
Update two load informations of core.
In several embodiments provided by the present invention, it should be understood that disclosed system and method,
Can realize by another way.For example, system embodiment described above is only schematical,
For example, the division of each functional unit, can be only division of logic function, can there is another when actually realizing
Outer dividing mode.
It is described as separating component illustrate unit can be or may not be it is physically separate, make
For the part that unit shows can be or may not be physical location, you can with positioned at a place,
Or can also be distributed on multiple NEs.Can select according to the actual needs part therein or
Person whole units realize the purpose of this embodiment scheme.
In addition, during each functional unit in each embodiment of the invention can be integrated in a processing unit,
Can also be that unit is individually physically present, it is also possible to which two or more units are integrated in a list
In unit.Above-mentioned integrated unit can both be realized in the form of hardware, it would however also be possible to employ hardware adds software
The form of functional unit is realized.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all at this
Within the spirit and principle of invention, any modification, equivalent substitution and improvements done etc. should be included in
Within the scope of protection of the invention.
Claims (15)
1. the side of the process resource in Base Band Unit pond is distributed in a kind of access network of cordless communication network
Method, wherein, the Base Band Unit pond corresponds to multiple virtual base stations, it is characterised in that the money
The distribution in source realizes that the load moved is in units of virtual base station by moving load.
2. method according to claim 1, wherein, the Base Band Unit pond passes through many masters
Machine serves multiple virtual base stations, wherein, the distribution of the resource be included in the multiple host it
Between move load.
3. method according to claim 1, wherein, the Base Band Unit passes through at least one
Host services are in multiple virtual base stations, and every main frame has multiple processing units, the resource
Distribution moves load between being included in a multiple processing unit for main frame.
4. method according to claim 1, wherein, the multiple based on coordinated multipoint transmission is empty
Intend base station to be arranged at by the same processing unit support of same main frame.
5. method according to claim 1, wherein, including at least one in the following：
The current load of each main frame is compared with a first threshold, and by load higher than described
The main frame of first threshold is defined as overloading main frame；
The current load of each main frame is compared with a Second Threshold, and by load less than described
The main frame of Second Threshold is defined as underload main frame.
6. method according to claim 5, wherein, also include：
For underload main frame determines the object main frame for load migration；
Expense according to needed for load migration, it is described right to judge to move to load from the underload main frame
As main frame, or load is moved into the underload main frame from the object main frame.
7. a kind of process resource that Base Band Unit pond is distributed in the access network of cordless communication network
Equipment, wherein, the Base Band Unit pond corresponds to multiple virtual base stations, it is characterised in that described
Equipment realizes described resource allocation by moving load, and the load moved is with virtual base station
It is unit.
8. equipment according to claim 7, wherein, the Base Band Unit pond passes through many masters
Machine serves multiple virtual base stations, wherein, the equipment includes first module, is configured to described
Load is moved between multiple host to realize the resource allocation.
9. equipment according to claim 7, wherein, the Base Band Unit pond passes through at least one
Platform host services are in multiple virtual base stations, and every main frame has multiple processing units, the equipment
Including second unit, the second unit be configured to a multiple processing unit for main frame it
Between load is moved to realize the resource allocation.
10. equipment according to claim 8, wherein, the equipment carries out the resource point
It is arranged at by the same of same main frame with the multiple virtual base stations based on coordinated multipoint transmission are caused
Processing unit is supported.
11. equipment according to claim 8, wherein, the first module is configured to, and holds
Row includes at least one in the following：
The current load of each main frame is compared with a first threshold, and by load higher than described
The main frame of first threshold is defined as overloading main frame；
The current load of each main frame is compared with a Second Threshold, and by load less than described
The main frame of Second Threshold is defined as underload main frame.
12. equipment according to claim 11, wherein, the first module is additionally configured to：
For underload main frame determines the object main frame for load migration；
Expense according to needed for load migration, it is described right to judge to move to load from the underload main frame
As main frame, or load is moved into the underload main frame from the object main frame.
13. equipment according to claim 11, wherein, the first module is additionally configured to：
The object main frame for load migration is determined for overload main frame；
By it is described overload main frame at least one processing unit on whole load move it is described
On one processing unit of object main frame.
Base Band Unit pond in a kind of 14. cordless communication networks, it is characterised in that will including right
Seek the equipment any one of 7-13.
Access net system in a kind of 15. cordless communication networks, it is characterised in that including such as right
It is required that the Base Band Unit pond described in 14.
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| CN201510916679.3A CN106879022B (en) | 2015-12-10 | 2015-12-10 | Resource allocation method and device for baseband unit pool of radio access network |
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