CN105992229A - Method and device for enforcement of district segmentation in wireless communication network - Google Patents
Method and device for enforcement of district segmentation in wireless communication network Download PDFInfo
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Abstract
The present invention provides a method for enforcement of district segmentation in a wireless communication network. The method comprises the steps: A, determining the isolation loss case between different mRRHs in a district; B, determining the user distribution condition in the district; and C, enforcing the district segmentation according to the isolation loss condition and the user distribution condition. The present invention further provides a BBU device for enforcing the district segmentation in the wireless communication network. The device comprises an isolation loss determination device configured to determine the isolation loss conditions between different mRRHs in the district; a user distribution determination device configured to determine the user distribution condition in the distribution; and a district segmentation device configured to enforce district segmentation according to the isolation loss condition and the user distribution condition.
Description
Technical field
The present invention relates to wireless communication field, in particular it relates to one is in radio communication
Network is implemented method and the equipment thereof of community segmentation.
Background technology
Community segmentation is the radio coverage a cell site in wireless communication system
It is divided into two or more new cell site.Implementing community segmentation can be at original cell site
Region in extra capacity is provided.
In the past few decades, mobile data services amount (traffic) is fast with the quantity indicating level
Surging and rise, it causes the cellular network demand to higher capacity and more preferable covering performance.By
Data business volume in 70% betides indoor, it is therefore necessary to meet the industry under indoor situations
Business demand.Yet with serious outdoor to the indoor path loss that penetrates, use and have for indoor
Traditional uniform network of the base station, outdoor macro cell covered is problematic.Nowadays, there is many
In-door covering scheme can be used, such as small-cell and digital distributed antenna system based on optical fiber
(DAS).By the structure small-cell, base station of multiple low cost low-power consumptions, this small-cell includes
Microcell, picocell and millimicro community.DAS based on optical fiber is by by center baseband unit
(BBU) constitute with distributed micropower far end radio frequency head (mRRH).They are passed through light
Fine connection, and transmission base band (I/Q data) among them.
Demand for services under indoor situations is time dependent.Portfolio with daytime and night,
Working day and weekend and different.The most also with spatial variations, in system chambers, meeting room and warehouse
Traffic pattern and demand the most different.Community segmentation is that a preferable selection is to solve these
The phenomenon of load change.But most communities splitting scheme focuses simply on conventional fractionation, such as
Segmentation etc. in the way of 1: 3 or 1: 4, in indoor solution the deployment of mRRH be irregular also
And business demand has the typical characteristic with change in time and space.If machine is still implemented in community segmentation
The decile of tool, is as a rule the problem that cannot solve load balance.On the other hand, if
Antenna is separated by several meters of distributions, then isolation loss (isolation loss) will be the highest, this meaning
What these two antennas were entirely isolated, it is possible to use frequency reuse, in this case we
Need not implement frequency division, because frequency reuse also can solve the pressure of ever-increasing portfolio
Power.The scheme isolation loss special sometimes through some will not be the highest, such as to multiple antennas power
Reassigning, frequency reuse scheme the most still can be used.Analyze when implementing community segmentation
When, most researcheres are solely focused on the state of load, and do not combine antenna isolation characteristic
Implement united optimization.The present invention will pay close attention to irregular indoor cell split and combine antenna every
Optimize from characteristic, and the community segmentation in the application is analyzed with reference to above mentioned based on light
Fine DAS framework.
Summary of the invention
In order to realize the purpose of the present invention, a first aspect of the present invention provides a kind of at channel radio
The method implementing community segmentation in communication network, wherein, including step: A. confirms in community different
Isolation loss situation between mRRH；B. the user distribution situation in described community is confirmed；C.
Community segmentation is implemented according to described isolation loss situation and described user distribution situation.
Particularly, described step A also includes: sets up isolation according to described isolation loss situation and damages
Consumption table；Described step B also includes: set up user profile table according to described user distribution situation.
Particularly, described step C specifically includes: C1., according to described user profile table, confirms to live
Jump the sum of user calculate the demand number N of new community；C2. according to described user profile table, from
Unallocated mRRH finds out and there is the mRRH of most number of users as target mRRH；C3.
Confirm whether the number of users of described target mRRH meets community segmentation threshold；If it is C31. full
Foot, then distribute a new community ID to described target mRRH, and described target mRRH
It is labeled as distributing mRRH；If be C32. unsatisfactory for, then according to the Scheme Choice of combined optimization
Go out at least one and can merge mRRH, be total to for described target mRRH and the described mRRH that merges
With one new community ID of distribution, and described target mRRH with described merge mRRH
It is labeled as distributing mRRH；C4. judge that the quantity of current community has reached described little
The demand number N in district；If reached, then community segmentation terminates；If not up to, then implementing step
Rapid C2.
Particularly, the described Scheme Choice according to combined optimization goes out at least one and can merge mRRH
Process specifically include: I., according to described isolation loss table, determines from unappropriated mRRH
One adjacent mRRH with described target mRRH with minimum isolation loss value；II. institute is judged
Whether the number of users stating adjacent mRRH meets minimum optional threshold value: if be unsatisfactory for, then
Described adjacent mRRH is labeled as allocated mRRH, and implements step I；If it is satisfied,
The most described adjacent mRRH is the merged mRRH of described target mRRH；III. confirm accumulative
Whether number of users meets described community segmentation threshold, and wherein said accumulative number of users is described target
The number of users of mRRH and all users merging mRRH corresponding to described target mRRH
Number sum: when described accumulative number of users is unsatisfactory for described community segmentation threshold, implements step I.
Particularly, described step A specifically includes: distributes one for each mRRH and is used for measuring
The Temporary Cell ID of isolation loss；The user side in each Temporary Cell is made to measure its place little
The SINR of the mRRH in district and the SINR of the mRRH of neighbor cell；
According to the measurement result of the user side in each Temporary Cell, calculate this Temporary Cell
Isolation loss value between mRRH and adjacent mRRH；Generate according to described isolation loss value
Isolation loss table.
Particularly, described isolation loss value is according to the multiple user sides in described Temporary Cell
Repetitive measurement result and the average that calculates.
Particularly, described step B specifically includes: i. obtains the upper of a user side not being positioned
The backup of row signal, wherein said backup includes multiple up vector signal；Ii. up letter is obtained
Road distribution information, and determine in described backup each mRRH corresponding to up vector signal and
Signal intensity；Iii. analyze the signal intensity of each up vector signal, to find out, there is maximum letter
The up vector signal of number intensity；Iv. the described up vector signal with maximum signal
Corresponding mRRH is as the main service mRRH of this user side；V. be confirmed whether the most not by
The user side of location: if had, implement step i；If it is not, generation user profile table.
A second aspect of the present invention provides one within a wireless communication network for implementing little differentiation
The BBU equipment cut, it is characterised in that including: isolation loss confirms device, and it is configured to really
Recognize the isolation loss situation between different mRRH in community；User distribution confirms device, its quilt
It is configured to the user distribution situation confirming in described community；Community segmenting device, it is configured to
Community segmentation is implemented according to described isolation loss situation and described user distribution situation.
Particularly, described isolation loss confirms that device includes: isolation loss table generation module, its
It is configured to set up isolation loss table according to described isolation loss situation；Described user distribution confirms
Device includes: user profile table generation module, and it is configured to according to described user distribution situation
Set up user profile table.
Particularly, described community segmenting device specifically includes: demand number confirms module, and it is joined
It is set to, according to described user profile table, confirm the sum of any active ues and calculate the demand number of community
N；First searches module, and it is configured to according to described user profile table, from unallocated mRRH
In find out and there is the mRRH of most number of users as target mRRH, and confirm described target
Whether the number of users of mRRH meets community segmentation threshold；Community segmentation module, it is configured
For distributing community ID to mRRH；Merging and confirm module, it is configured to according to combined optimization
Scheme Choice goes out at least one merged mRRH corresponding to described target mRRH；First sentences
Disconnected module, it is configured to judge that the quantity of current community has reached described community
Demand number N.
Particularly, described merging confirms that module specifically includes: second searches unit, and it is configured
According to described isolation loss table, determine from unappropriated mRRH one with described target
MRRH has the adjacent mRRH of minimum isolation loss value；Second judging unit, it is configured
For judging whether the number of users of described adjacent mRRH meets minimum optional threshold value: if be discontented with
Foot, then be labeled as allocated mRRH described adjacent mRRH；If it is satisfied, then it is described
Adjacent mRRH is the merged mRRH of described target mRRH；Cumulative calculation unit, its quilt
It is configured to confirm whether accumulative number of users meets described community segmentation threshold, wherein said accumulative use
Amount is that the number of users of described target mRRH closes with corresponding to all of described target mRRH
And the number of users sum of mRRH.
Particularly, described isolation loss confirms that device also includes: community distribution module, it is joined
It is set to each mRRH and distributes one for measuring the Temporary Cell ID of isolation loss；Measure and control
Module, its user side being configured such that in each Temporary Cell measures its community, place
The SINR of mRRH and the SINR of the mRRH of neighbor cell；Isolation computing module, it is joined
It is set to the measurement result according to the user in each Temporary Cell, calculates this Temporary Cell
Isolation loss value between mRRH and adjacent mRRH.
Particularly, described isolation loss value is according to the multiple user sides in described Temporary Cell
Repetitive measurement result and the average that calculates.
Particularly, described user distribution confirms that device specifically includes: backup acquisition module, its quilt
It is configured to obtain the backup of the up vector signal of a user side not being positioned, wherein said
Backup includes multiple up vector signal；Signal analysis module, it is configured to obtain up
Channel allocation information, and determine each mRRH corresponding to up vector signal in described backup
And signal intensity；Signal confirms module, its letter being configured to analyze each up vector signal
Number intensity, to find out the up vector signal with maximum signal, and described in have
The mRRH corresponding to up vector signal of big signal intensity is as the main service of this user side
mRRH。
Accompanying drawing explanation
By reading retouching in detail with reference to made non-limiting example is made of the following drawings
Stating, the other features, objects and advantages of the present invention will become more apparent:
Fig. 1 shows the schematic diagram implementing segmentation community in prior art；
Fig. 2 shows according to one disclosed in this invention within a wireless communication network for implementing
The module map of the BBU equipment of community segmentation；
Fig. 3 shows in an indoor cell, is detected not by scheme disclosed in this invention
With the schematic diagram of isolation loss situation between mRRH；
Fig. 4 shows according to isolation loss between the different mRRH of a kind of detecting disclosed in this invention
The method flow diagram of situation；
Fig. 5 shows in an indoor cell, little by scheme disclosed in this invention detecting
The system schematic of user distribution situation in district；
Fig. 6 shows according to a kind of use detecting in community different mRRH disclosed in this invention
The method flow diagram of family distribution situation；
Fig. 7 shows the community signal that community is implemented segmentation according to scheme disclosed in this invention
Figure；And
Fig. 8 shows and implements community within a wireless communication network according to one disclosed in this invention
The method flow diagram of segmentation.
Detailed description of the invention
In the specific descriptions of following preferred embodiment, by with reference to constituting a present invention part
Appended accompanying drawing.Appended accompanying drawing has been illustrated by way of example the spy being capable of the present invention
Fixed embodiment.The embodiment of example is not intended as the limit all embodiments according to the present invention.
It is appreciated that without departing from the scope of the present invention, it is possible to use other embodiments,
Structural or the amendment of logicality can also be carried out.Therefore, following specific descriptions not limit
Property processed, and the scope of the present invention is defined by the claims appended hereto.Although additionally, explanation
Book describes the step of method in a particular order, but this does not requires that or implies necessary
Perform these operations according to this particular order, or have to carry out the most shown operation ability
Realizing desired result, on the contrary, the step of description can change execution sequence.Additionally or standby
Multiple steps are merged into a step and are performed by selection of land, it is convenient to omit some step, and/or will
One step is decomposed into multiple step and performs.
The right of Fig. 1 shows the process of existing segmentation community (cell), and this process is used for
Expand the capacity of mobile communication system.In this example, the area of radio coverage of big cell site
Territory is reduced antenna height by regulation power level and/or use and is divided to reduce overlay area
Cut.The radio of cell site is reduced by changing the border of the radio frequency of cell site
Overlay area (with as further for community separated effect), and allow to add new
Cell site.Left side Fig. 1 shows the indoor cell splitting scheme for indoor wireless networks,
Along with the increase of portfolio, 3 communities are equally divided to 16 Ge Xin communities.
As a rule, in open environment out of doors, macrocell is the hexagonal shape of rule,
So community splitting scheme is the splitting scheme using approximation 1: 3 or 1: 4, and existing indoor used
Splitting scheme is almost identical with outdoor scheme.The shortcoming of this kind of community splitting scheme is as follows:
1) segmentation Shi Ba community in current area is divided into several small-cell regularly.It is rough estimate
With division.Such as, in the situation that portfolio is bigger, to the building average mark of 9 layers
Joining 3 communities, each community is responsible for covering 3 floors.
2) distribution following the trail of user that current area segmentation is not instant is implemented.Due to indoor
The low speed of user moves, and is feasible so immediately following the trail of for community cutting procedure and helps,
And be not used in prior art.
3) handover scheme and the timing node of community segmentation is fixing.Such as one building, building white
It time will be allocated 3 community ID, only have a community ID evening.Cutting of number of cells
Change commanders and carry out on predetermined timing node, such as 21:00.
4) isolation being not bound with different antennae (mRRH, antenna is integrated on RRH) is damaged
Consumption characteristic is implemented to optimize, and can use frequency reuse between the mRRH of isolation.Sometimes isolate
But it is lost the highest by some special schemes (such as at antenna adjustments power), the most permissible
Frequency reuse is used between these nonideal isolated antennas.
In order to overcome above-mentioned technical problem of the prior art, the invention discloses a kind of wireless
Communication network is implemented method and the equipment thereof of community segmentation.Unlike the prior art, the present invention
The scheme of disclosed segmentation community be between situation and the mRRH of distribution based on user every
From situation about being lost, say, that scheme disclosed in this invention with avoiding mechanization handle
Whole community is divided into multiple community fifty-fifty, but according to the distribution situation of user, and mRRH
Between the situation of isolation loss implement the segmentation of corresponding community.
How community is implemented according to isolation loss situation and the user distribution situation of mRRH introducing
Before segmentation, we first introduce and damage according to isolation between detecting disclosed in this invention different mRRH
The scheme of consumption situation and the scheme of detecting intra-cell users distribution.
As in figure 2 it is shown, Fig. 2 discloses one within a wireless communication network for implementing little differentiation
The module map of the BBU equipment 200 cut, this equipment 200 includes: community segmenting device 210,
Isolation loss confirms that device 220, user distribution confirm device 230, and wherein, isolation loss confirms
Device 220 is for confirming in community the isolation loss situation between different mRRH, user distribution
Confirm that device 230 is for confirming the distribution situation of user in community.
It is to be noted that described isolation loss confirms that device 220 and user distribution confirm device
230 it is not necessary to be contained in described equipment 200, and it can also be independent device.
Below as a example by the indoor cell shown in Fig. 3, in conjunction with module map and the stream of Fig. 4 of Fig. 2
Journey figure is introduced according to the side of isolation loss situation between detecting disclosed in this invention different mRRH
Case:
Have during community 1 has the service area of 16 mRRH, each mRRH in figure 3
Having the user of varying number, the isolation loss value between each mRRH is different.In order to really
Isolation loss value between these mRRH fixed, it is possible to implement the method shown in Fig. 4.
In step 402, distribution 221 mRRH of module in community are as mRRH to be measured
(such as select mRRH11), for this mRRH (mRRH11) and its adjacent mRRH divide
Fen Pei an interim community ID that be used for measuring isolation loss；
In step 404, control module 222 is measured to this mRRH (mRRH11) user
End (such as UE2, UE3) transmitting control commands so that this mRRH (mRRH11) service
User side in region measures this mRRH (mRRH11) SINR and neighbor cell in
The SINR of mRRH.
In a step 406, computing module 223 is isolated, from user side (such as UE2, UE3)
Receive measurement result and calculate the isolation loss value between this mRRH and adjacent mRRH.?
In the present invention, the isolation loss value between the mRRH that mRRH is adjacent is this mRRH
The difference of the SINR of the mRRH that SINR is adjacent, such as mRRH11With mRRH7It
Between isolation loss value be (SINR11-SINR7).Due to the different user side in mRRH
Being positioned at the diverse location of this Serving cell, we cannot know that user side is in the center of community
Position or marginal position.Therefore, in the present invention, we record based on different user end
SINR and calculate the isolation loss value of acquisition and implement average computation, as the user measured in community
When number is abundant, the result of this isolation loss value will be the most accurate.The isolation that this calculates is damaged
Consumption value will be sent in isolation loss table generation module 224 generate isolation loss table.
In a step 408, being confirmed whether the mRRH that the most non-repeating query is arrived, if had, selecting
Next mRRH is as mRRH to be measured, and is again carried out step 402-406.When in community
All mRRH after all repeating query is crossed, isolation loss table generation module 224 is in step 410
Generate isolation loss table.
From the perspective of statistical average, if testing time long enough, the number of times of test is enough
Many, the result of the isolation loss recorded by said method is the most accurate.Once isolation loss table
Being established, it can be used for a long time, such as: half a year or until building is fitted up again.
Additionally, due to the resource for the Temporary Cell ID of test is limited, this programme can pass through
Subregion is implemented, it means that again separately after the mRRH in a region is tested
One region is implemented said method.
We further illustrate the method by an example below, as a example by Fig. 3, in this region
There are 16 mRRH, work as mRRH11As need measure mRRH time, mRRH11Place
Community be test cell, UE2 and UE3 is in the covering of this community.UE2 and UE3 detects
mRRH11With adjacent mRRHi(i=1,2 ..., 16, and i ≠ 11) SINR and lead to
Cross service mRRH11All SINR detected are fed back to BBU.Measurement knot according to UE2
Fruit can obtain the isolation loss value of correspondence, owing to we cannot know the particular location of UE2,
This means that we do not know that UE2 is positioned at center or the cell edge area of test cell.Logical
Often, it is accurate that the data result that the user of only center of housing estate records can be set up between mRRH
Isolation loss value.Therefore, we use the mode of cumulative mean, to by UE2's and UE3
The isolation loss value that measurement result obtains implements average operation to obtain final isolation loss table.
Matrix I is the exemplary isolation loss table obtained based on the distribution situation shown in Fig. 3:
In the table, the arithemetic unit in matrix is dB, and the result of the 11st row the 1st row is 32,
This means mRRH1And mRRH11Between isolation loss be 32dB.From these data,
Both distances space loss that is far or that cause because of construction material decay is the highest.
Below with the schematic diagram shown in Fig. 5, it is situated between in conjunction with the module map of Fig. 2 and the flow chart of Fig. 6
Continue and a kind of detect the scheme of user distribution situation in community according to presently disclosed:
This programme problem to be solved is to identify which distributed mRRH user is mostly in
In coverage.In distributed mRRH system, user connects from the mRRH that each are different
Accept row composite signal, but user cannot distinguish between the signal of each mRRH.In the present invention,
We are confirmed in the coverage which mRRH user is mainly situated in by upward signal.
In step 602, backup acquisition module 231 obtains certain user from each mRRH
The backup of the up vector signal of end, and this backup is sent true to the signal communicating with connection
Recognizing in module 232, wherein this user side is the user side needing determined distributing position.
In step 604, signal obtains in confirming the module 232 baseband processing unit from Fig. 5
Taking up channel distribution information, this up channel distribution information indicates each up vector signal
Corresponding relation with each mRRH.Described signal confirms that module 232 is divided according to this up channel
Join information, confirm the signal intensity of up vector signal of corresponding different mRRH (such as
SINR), and confirm the result (signal of the up vector signal received by each mRRH
Intensity) send to the signal analysis module 233 communicating with connection.
In step 606, the signal intensity of each up vector signal of signal analysis module analysis,
To find out the up vector signal with maximum signal, and in step 608 having
The mRRH corresponding to up vector signal of big signal intensity is as the main service of this user side
mRRH.Described analysis result will be sent in user profile table generation module 234.
In step 610, can reaffirm and whether also have the distribution of user side to need to confirm,
If it has, be then again carried out step 602-608, if it is not, implement step 612, with
Family distribution table generation module 234 generates user profile table.In a specific embodiment,
This user profile table can represent with following matrix form (matrix F)
Wherein coordinate 1010 represents mRRH11Deployed position, 0000 is mRRH1Deployment
Position, matrix value 13 means mRRH11Covering under have 13 users activated.
Isolation loss situation and detecting intra-cell users between different mRRH how is detected having introduced
After distribution situation, how introduction is utilized isolation loss situation and detecting between mRRH little by we
In district, segmentation is implemented in community by user distribution situation.
Below as a example by the indoor cell shown in Fig. 7, in conjunction with module map and the stream of Fig. 8 of Fig. 2
The introduction of journey figure is according to the scheme of segmentation community disclosed in this invention:
Community segmenting device 210 includes as shown in Figure 2: demand number confirms module 211, first
Search module 212, community segmentation module the 213, first judge module 214 and merge confirmation module.
Merge and confirm that module includes second lookup unit the 215, second judging unit 216 and cumulative calculation
Unit 217.
When segmentation is implemented in community by needs, in step 802, user distribution confirms device 230
First confirm the user distribution situation in current area, and generate the transmission of corresponding user profile table extremely
Demand number confirms that module 211 and first is searched in module 212.
In step 804, demand number confirms that module 211 confirms active using according to user profile table
The sum at family also calculates the demand number N of current area, such as, if active user's number is 300
Individual, it is assumed that 50 users can be served in a community, then the community number after segmentation should be
6.
In step 806, first search module 212 and in user profile table, find out one have
(in order to distinguish with other mRRH, we are this mRRH for the at most mRRH of number of users
It is referred to as target mRRH).
In step 810, the first lookup module 212 further confirms that this target mRRH found out
Number of users whether meet the segmentation threshold of (being more than or equal to) community:
If it is satisfied, then implement step 816: segmentation module 213 in community is to described target mRRH
Individually one new community ID of distribution, and it is labeled as distributing mRRH described target mRRH,
To represent that this mRRH has been carried out over-segmentation.If be unsatisfactory for, then implement step 812 and
Step 814: confirm that module is found out from the adjacent mRRH of target mRRH and can be closed by merging
And mRRH.
In step 812, the second lookup unit 215 confirms to obtain device 220 from isolation loss
Obtain isolation loss table, then according to described isolation loss table, determine from unappropriated mRRH
One adjacent mRRH with this target mRRH with minimum isolation loss value.Such as, if
mRRH11It is target mRRH, and mRRH12It was not previously allocated new community ID, then
According to matrix I, the adjacent mRRH with minimum isolation loss value is exactly mRRH12。
What then the second lookup unit 215 was found out has the adjacent of minimum isolation loss value
MRRH informs that the second judging unit 216, the second judging unit 216 confirm this adjacent mRRH
Whether be worth merging with target mRRH, the number of users being had as adjacent mRRH is considerably less
Time, it does not have merged value, therefore, sets a minimum in the present invention optional
Threshold value, the second judging unit 216 judges whether the number of users of described adjacent mRRH meets (big
In or be equal to) minimum optional threshold value, if be unsatisfactory for this minimum optional threshold value, this is adjacent
MRRH is not annexable adjacent mRRH to be looked for, and now, this adjacent mRRH will be by
It is labeled as distributing mRRH to prevent from again being chosen by described second lookup unit.If it is full
During this minimum optional threshold value of foot, this adjacent mRRH is annexable adjacent mRRH to be looked for.
In step 814, cumulative calculation unit 217 obtains from the second judging unit 216 and sentences
Disconnected result, and the number of users of annexable adjacent mRRH and target mRRH is added to confirm
Whether the number of users after Lei Ji meets community segmentation threshold:
If met, implement step 816: community segmentation module 213 is described target mRRH
A new community is jointly distributed with all mRRH of merging corresponding to this target mRRH
ID, and it is labeled as distributing mRRH described target mRRH and the described mRRH of merging.
Otherwise, cumulative calculation unit 217 informs that the second lookup unit 215 continues to look for next tool
There is the adjacent mRRH of minimum isolation loss value, it may be assumed that return step 812 and continue to look for the next one can
The adjacent mRRH merged.
In step 818, the first judge module 214 is implemented in community segmentation module 213 every time
Confirm that the quantity of community has reached the demand number N of community after new cell-ids distribution；As
Fruit reaches, then community segmentation terminates；If not up to, then informing that the first lookup module 212 continues
Continuous enforcement step 808.
We further illustrate this splitting scheme, shown in Fig. 7 by a concrete example below
Community as a example by, it is assumed that isolation loss table as shown in matrix I, user profile table such as matrix F institute
Showing, community segmentation threshold is set as 35, and minimum optional threshold value is 5.
First, we can try to achieve the quantity required of the community after segmentation by calculating, it may be assumed that uses
Family sum is Total_UE_numbers=1+16+12+5+ ...+16+0+7+8=126, and community needs
The number is asked to be
Then, finding out the maximum in user profile table, this maximum is 20, and it is corresponding
mRRH9, owing to 20 less than community segmentation threshold 35, so needing to use the side of combined optimization
Case is this mRRH9Find out annexable adjacent mRRH, and for common little of they distribution one
District ID.Concrete, search out and mRRH in isolation loss table (matrix I)9Between every
From the mRRH that loss value is minimum.By searching it appeared that mRRH13Corresponding value is
9dB, is the minima in the 9th row.Due to mRRH9Number of users meet minimum optional threshold
Value, therefore can be as annexable adjacent mRRH.Cumulative mRRH9And mRRH13Use
Amount, once adds up number of users more than 35, and new community ID will be allocated；Find out down the most again
One annexable mRRH adds up.Herein, 20+16 ＞ 35 therefore, mRRH9With
mRRH13A common community ID is assigned.It is similar to, by identical step, little
District ID 2 and 3 can also be allocated.
It is pointed out that in the process (third time segmentation) producing community 2, mRRH11
By as target mRRH, mRRH11With mRRH7And mRRH10Between have identical isolation
Loss value 13dB, it below has the mRRH of 16dB8, it means that mRRH7With
mRRH10Compare mRRH8There is higher priority come and mRRH11Implement to merge, but this
Method finally selects mRRH8As annexable mRRH, this is because minimum optional threshold value quilt
Being set as 5, if the number of users of mRRH is less than 5, this mRRH will be left in the basket and not carry out
Merge, therefore, mRRH7And mRRH10Can not be merged.
Can obtain following after complete the segmentation of community according to the method disclosed in the present
The matrix of community ID:
This community ID matrix is the result of community segmentation.Wherein coordinate 1000 correspondence is
mRRH9, and the community ID of this mRRH is 4.It is pointed out that in segmentation community it
Before, the community ID of all mRRH is community 1.New cell-ids is not redistributed so remaining
MRRH still fall within community 1.When portfolio declines, and cell combining process should be carried out
To save power and to improve spectrum efficiency, the process that the segmentation of cell combining process Shi Yu community is reverse.
It is obvious to a person skilled in the art that the invention is not restricted to above-mentioned one exemplary embodiment
Details, and without departing from the spirit or essential characteristics of the present invention, it is possible to it
His concrete form realizes the present invention.Therefore, in any case from the point of view of, embodiment all should be regarded as
It is exemplary, and is nonrestrictive.Additionally, it will be evident that " an including " word is not excluded for
Other elements and step, and wording " one " is not excluded for plural number.Device claim is stated
Multiple elements can also be realized by an element.The first, the second word such as grade is used for representing name
Claim, and be not offered as any specific order.
Claims (14)
1. the method implementing community segmentation within a wireless communication network, wherein, including step:
A. the isolation loss situation between different mRRH in community is confirmed；
B. the user distribution situation in described community is confirmed；
C. community segmentation is implemented according to described isolation loss situation and described user distribution situation.
Method the most according to claim 1, wherein,
Described step A also includes: set up isolation loss table according to described isolation loss situation；
Described step B also includes: set up user profile table according to described user distribution situation.
Method the most according to claim 2, wherein, described step C specifically includes:
C1. according to described user profile table, confirm the sum of any active ues and calculate the need of community
Seek several N；
C2. according to described user profile table, find out from unallocated mRRH and there is most user
The mRRH of quantity is as target mRRH；
C3. confirm whether the number of users of described target mRRH meets community segmentation threshold；
C31. if it is satisfied, then distribute a new community ID to described target mRRH,
And it is labeled as distributing mRRH described target mRRH；
If be C32. unsatisfactory for, then going out at least one according to the Scheme Choice of combined optimization can
Merge mRRH, jointly distribute one for described target mRRH and the described mRRH of merging
Individual new community ID, and described target mRRH with described merge mRRH labelling
For distributing mRRH；
C4. judge that the quantity of current community has reached the demand number N of described community；
If reached, then community segmentation terminates；
If not up to, then implementing step C2.
Method the most according to claim 3, wherein, the described scheme according to combined optimization
Select at least one process that can merge mRRH to specifically include:
I. according to described isolation loss table, from unappropriated mRRH, one and described mesh are determined
Mark mRRH has the adjacent mRRH of minimum isolation loss value；
II. judge whether the number of users of described adjacent mRRH meets minimum optional threshold value:
If be unsatisfactory for, then described adjacent mRRH is labeled as allocated mRRH,
And implement step I；
If it is satisfied, then described adjacent mRRH is merging of described target mRRH
mRRH；
III. confirm whether accumulative number of users meets described community segmentation threshold, wherein said accumulative use
Amount be described target mRRH number of users with can corresponding to all of described target mRRH
The number of users sum of merging mRRH:
When described accumulative number of users is unsatisfactory for described community segmentation threshold, implement step I.
Method the most according to claim 2, wherein, described step A specifically includes:
One is distributed for the Temporary Cell ID measuring isolation loss for each mRRH；
The user side in each Temporary Cell is made to measure the SINR of mRRH of its community, place
SINR with the mRRH of neighbor cell；
According to the measurement result of the user side in each Temporary Cell, calculate this Temporary Cell
Isolation loss value between mRRH and adjacent mRRH；
Isolation loss table is generated according to described isolation loss value.
Method the most according to claim 5, wherein, described isolation loss value is according to institute
The average stating the repetitive measurement result of the multiple user sides in Temporary Cell and calculate.
Method the most according to claim 2, wherein, described step B specifically includes:
I. the backup of the upward signal of a user side not being positioned, wherein said backup are obtained
Include multiple up vector signal；
Ii. obtain up channel distribution information, and determine each up vector signal in described backup
Corresponding mRRH and signal intensity；
Iii. analyze the signal intensity of each up vector signal, to find out, there is maximum signal
Up vector signal；
Iv. the mRRH corresponding to the described up vector signal with maximum signal is made
Main service mRRH for this user side；
V. the user side not also being positioned it is confirmed whether: if had, implement step i；If
No, then user profile table is generated.
8., within a wireless communication network for implementing a BBU equipment for community segmentation, it is special
Levy and be to include:
Isolation loss confirms device, and it is configured to confirm in community between different mRRH
Isolation loss situation；
User distribution confirms device, and it is configured to the user distribution feelings confirming in described community
Condition；
Community segmenting device, it is configured to divide according to described isolation loss situation and described user
Cloth situation implements community segmentation.
Equipment the most according to claim 8, it is characterised in that
Described isolation loss confirms that device includes:
Isolation loss table generation module, its be configured to according to described isolation loss situation set up every
From attrition table；
Described user distribution confirms that device includes:
User profile table generation module, it is configured to set up according to described user distribution situation use
Family distribution table.
Equipment the most according to claim 9, it is characterised in that described community segmentation dress
Put and specifically include:
Demand number confirms module, and it is configured to according to described user profile table, confirms active using
The sum at family also calculates the demand number N of community；
First searches module, and it is configured to according to described user profile table, from unallocated
MRRH finds out and there is the mRRH of most number of users as target mRRH, and confirm
Whether the number of users of described target mRRH meets community segmentation threshold；
Community segmentation module, it is configured to distribute community ID to mRRH；
Merging and confirm module, its Scheme Choice being configured to according to combined optimization goes out at least one
Merged mRRH corresponding to described target mRRH；
First judge module, it is configured to judge that the quantity of current community has reached
The demand number N of described community.
11. equipment according to claim 10, it is characterised in that described merging confirms mould
Block specifically includes:
Second searches unit, and it is configured to according to described isolation loss table, from unappropriated
MRRH determining, has the adjacent of minimum isolation loss value with described target mRRH
mRRH；
Second judging unit, it is configured to judge that the number of users of described adjacent mRRH is
The no optional threshold value of satisfied minimum: if be unsatisfactory for, then be labeled as described adjacent mRRH
The mRRH of distribution；If it is satisfied, then described adjacent mRRH is described target mRRH
MRRH can be merged；
Cumulative calculation unit, it is configured to confirm whether accumulative number of users meets described little differentiation
Cut threshold value, wherein said accumulative number of users be described target mRRH number of users with correspond to
All number of users sums merging mRRH of described target mRRH.
12. equipment according to claim 9, it is characterised in that described isolation loss is true
Recognize device also to include:
Community distribution module, it is configured to each mRRH and distributes one for measuring isolation
The Temporary Cell ID of loss；
Measuring control module, its user side being configured such that in each Temporary Cell measures it
The SINR of the mRRH of community, place and the SINR of the mRRH of neighbor cell；
Isolation computing module, it is configured to the measurement knot according to the user in each Temporary Cell
Really, the isolation loss value between the mRRH of this Temporary Cell and adjacent mRRH is calculated.
13. equipment according to claim 12, it is characterised in that described isolation loss value
Be the repetitive measurement result according to the multiple user sides in described Temporary Cell and calculate equal
Value.
14. equipment according to claim 9, it is characterised in that described user distribution is true
Recognize device to specifically include:
Backup acquisition module, its up arrow being configured to obtain a user side not being positioned
The backup of amount signal, wherein said backup includes multiple up vector signal；
Signal analysis module, it is configured to obtain up channel distribution information, and determines described
Each mRRH corresponding to up vector signal and signal intensity in backup；
Signal confirmation module, its signal intensity being configured to analyze each up vector signal,
To find out the up vector signal with maximum signal, and it is strong to have peak signal described in handle
The mRRH corresponding to up vector signal of degree is as the main service mRRH of this user side.
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