CN105992229B - A kind of method and its equipment for implementing cell segmentation within a wireless communication network - Google Patents
A kind of method and its equipment for implementing cell segmentation within a wireless communication network Download PDFInfo
- Publication number
- CN105992229B CN105992229B CN201510089889.XA CN201510089889A CN105992229B CN 105992229 B CN105992229 B CN 105992229B CN 201510089889 A CN201510089889 A CN 201510089889A CN 105992229 B CN105992229 B CN 105992229B
- Authority
- CN
- China
- Prior art keywords
- mrrh
- cell
- isolation loss
- target
- users
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention provides a kind of methods for implementing cell segmentation within a wireless communication network, wherein comprising steps of the isolation loss situation in A. confirmation cell between difference mRRH；B. confirm the user distribution situation in the cell；C. cell segmentation is implemented according to the isolation loss situation and the user distribution situation.Furthermore the present invention also provides a kind of within a wireless communication network for implementing the BBU equipment of cell segmentation, characterized by comprising: isolation loss confirms device, is configured as the isolation loss situation in confirmation cell between difference mRRH；User distribution confirms device, is configured as confirming the user distribution situation in the cell；Cell segmenting device is configured as implementing cell segmentation according to the isolation loss situation and the user distribution situation.
Description
Technical field
The present invention relates to wireless communication fields, in particular it relates to which a kind of implement cell within a wireless communication network
The method and its equipment of segmentation.
Background technique
Cell segmentation be the radio coverage of a cell site in wireless communication system is divided into two or
More new cell sites.Additional capacity can be provided in the region of original cell site by implementing cell segmentation.
In the past few decades, mobile data services amount (traffic) is rapidly increased with the quantity for indicating grade, is caused
To the cellular network demand of higher capacity and better covering performance.Since 70% data business volume is to betide interior
, it is therefore necessary to meet the business demand under indoor situations.However since serious outdoor to indoor penetrates path loss, tool is used
Traditional uniform network of outdoor macro cell base station for in-door covering is problematic.Nowadays, there are many in-door coverings
Scheme is available, such as cell and the digital distributed antenna system (DAS) based on optical fiber.Pass through multiple low cost low-power consumptions
Base station constructs cell, which includes Microcell, picocell and millimicro cell.Passed through center based on the DAS of optical fiber
Base Band Unit (BBU) and distributed micropower far end radio frequency head (mRRH) are constituted.They are connected by optical fiber, and at him
Among transmission base band (I/Q data).
Demand for services under indoor situations changes over time.Portfolio with daytime and night, working day and weekend and
It is different.Equally also with spatial variations, the traffic pattern and demand in system chambers, meeting room and warehouse are also different.Cell segmentation
It is a phenomenon that preferable selection is to solve these load variations.But most cell splitting schemes focus simply on conventional point
It cuts, such as is divided in a manner of 1: 3 or 1: 4, the deployment of mRRH is irregular in indoor solution and business demand has allusion quotation
The characteristic with change in time and space of type.It is usually that can not solve to load if still implementing mechanical equal part to cell segmentation
The problem of balance.On the other hand, if antenna is separated by several meters of distributions, isolation loss (isolation loss) will be very
It is high, it means that this two antennas were entirely isolated, frequency reuse can be used, we do not need to implement in this case
Frequency segmentation, because frequency reuse also can solve the pressure of ever-increasing portfolio.Sometimes through some special schemes every
Will not be too high from loss, such as multiple antennas power is reassigned, frequency reuse scheme is still available in such cases.Work as implementation
When cell segmentation analysis, most researchers are solely focused on the state of load, join without implementing in conjunction with antenna isolation characteristic
The optimization of conjunction.The present invention will pay close attention to irregular indoor cell and divide and optimize in conjunction with antenna isolation characteristic, and the application
In cell segmentation analysis refer to the above mentioned DAS framework based on optical fiber.
Summary of the invention
In order to achieve the object of the present invention, the first aspect of the present invention provide it is a kind of implement within a wireless communication network it is small
Distinguish the method cut, wherein comprising steps of the isolation loss situation in A. confirmation cell between difference mRRH；B. described in confirmation
User distribution situation in cell；C. cell segmentation is implemented according to the isolation loss situation and the user distribution situation.
Particularly, the step A further include: isolation loss table is established according to the isolation loss situation；The step B is also
It include: that user profile table is established according to the user distribution situation.
Particularly, the step C is specifically included: C1. confirms the sum and meter of any active ues according to the user profile table
Calculate the demand number N of new cell；C2. it according to the user profile table, is found out from unallocated mRRH with most numbers of users
MRRH is as target mRRH；C3. confirm whether the number of users of the target mRRH meets cell segmentation threshold；C31. if it is full
Foot then distributes a new cell ID to the target mRRH, and the target mRRH is labeled as to have distributed mRRH；C32. such as
Fruit is unsatisfactory for, then goes out at least one combinable mRRH according to the Scheme Choice of combined optimization, be the target mRRH and it is described can
Merge mRRH joint distribution one new cell ID, and the target mRRH and combinable mRRH is labeled as having distributed
mRRH；C4. judge whether the quantity of current cell has reached the demand number N of the cell；If reached, cell segmentation
Terminate；If not up to, implementation steps C2.
Particularly, the process that the Scheme Choice according to combined optimization goes out at least one combinable mRRH specifically includes:
I. according to the isolation loss table, determine that one has minimum isolation loss value with the target mRRH from unappropriated mRRH
Adjacent mRRH；II. judge whether the number of users of the adjacent mRRH meets minimum optional threshold value: if conditions are not met, then
The adjacent mRRH is labeled as allocated mRRH, and implementation steps I；If it is satisfied, then the adjacent mRRH is the target
The combinable mRRH of mRRH；III. confirm whether accumulative number of users meets the cell segmentation threshold, wherein the accumulative user
Number is the sum of the number of users of the number of users and all combinable mRRH corresponding to the target mRRH of the target mRRH: working as institute
When stating accumulative number of users and being unsatisfactory for the cell segmentation threshold, implementation steps I.
Particularly, the step A is specifically included: distributing one for measuring the Temporary Cell of isolation loss for each mRRH
ID；So that the user terminal in each Temporary Cell measures the SINR's of the mRRH of its place cell and mRRH of neighboring community
SINR；
According to the measurement result of the user terminal in each Temporary Cell, the mRRH and adjacent mRRH of the Temporary Cell are calculated
Between isolation loss value；Isolation loss table is generated according to the isolation loss value.
Particularly, the isolation loss value be according to the multiple measurement results of a plurality of clients in the Temporary Cell and
Calculated mean value.
Particularly, the step B is specifically included: i. obtains the backup of the uplink signal of a user terminal not positioned,
It wherein include multiple uplink vector signals in the backup；Ii. it obtains up channel and distributes information, and determine each in the backup
MRRH and signal strength corresponding to a uplink vector signal；Iii. the signal strength of each uplink vector signal is analyzed, to look for
Provide the uplink vector signal of maximum signal；Iv. the uplink vector signal institute described with maximum signal is right
Main service mRRH of the mRRH answered as the user terminal；V. it is confirmed whether that there are also the user terminals not positioned: if there is then, implementing
Step i；If it is not, generating user profile table.
The second aspect of the present invention provides a kind of BBU equipment divided within a wireless communication network for implementing cell,
It is characterised by comprising: isolation loss confirms device, it is configured as the isolation loss feelings in confirmation cell between difference mRRH
Condition；User distribution confirms device, is configured as confirming the user distribution situation in the cell；Cell segmenting device, quilt
It is configured to implement cell segmentation according to the isolation loss situation and the user distribution situation.
Particularly, the isolation loss confirmation device includes: isolation loss table generation module, is configured as according to
Isolation loss situation establishes isolation loss table；The user distribution confirmation device includes: user profile table generation module, is matched
It is set to and user profile table is established according to the user distribution situation.
Particularly, the cell segmenting device specifically includes: demand number confirmation module is configured as according to the user
Distribution table confirms the sum of any active ues and calculates the demand number N of cell；First searching module, is configured as according to
User profile table finds out the mRRH with most numbers of users as target mRRH from unallocated mRRH, and confirms the mesh
Whether the number of users of mark mRRH meets cell segmentation threshold；Cell divides module, is configured as distributing cell ID to mRRH；
Merge confirmation module, be configured as being gone out according to the Scheme Choice of combined optimization at least one corresponding to the target mRRH can
Merge mRRH；First judgment module is configured as judging the need whether quantity of current cell has reached the cell
Seek several N.
Particularly, the merging confirmation module specifically includes: the second searching unit, is configured as being damaged according to the isolation
Table is consumed, an adjacent mRRH with the target mRRH with minimum isolation loss value is determined from unappropriated mRRH；Second
Judging unit is configured as judging whether the number of users of the adjacent mRRH meets minimum optional threshold value: if conditions are not met,
The adjacent mRRH is then labeled as allocated mRRH；If it is satisfied, then the adjacent mRRH be the target mRRH can
Merge mRRH；Cumulative calculation unit is configured as confirming whether accumulative number of users meets the cell segmentation threshold, wherein institute
State the user that accumulative number of users is the number of users and all combinable mRRH corresponding to the target mRRH of the target mRRH
The sum of number.
Particularly, the isolation loss confirms device further include: cell distribution module is configured as each mRRH distribution
One for measuring the Temporary Cell ID of isolation loss；Control module is measured, is configured such that in each Temporary Cell
The SINR of the mRRH of the SINR and neighboring community of the mRRH of cell where user terminal measures it；Computing module is isolated, is configured
For according to the measurement result of the user in each Temporary Cell, calculate between the mRRH of the Temporary Cell and adjacent mRRH every
From loss value.
Particularly, the isolation loss value be according to the multiple measurement results of a plurality of clients in the Temporary Cell and
Calculated mean value.
Particularly, the user distribution confirmation device specifically includes: backup obtains module, is configured as obtaining one not
The backup of the uplink vector signal of the user terminal positioned, wherein including multiple uplink vector signals in the backup；Signal point
Module is analysed, is configured as obtaining up channel distribution information, and determine in the backup corresponding to each uplink vector signal
MRRH and signal strength；Signal confirmation module is configured as analyzing the signal strength of each uplink vector signal, to find out
Uplink vector signal with maximum signal, and corresponding to the uplink vector signal with maximum signal
Main service mRRH of the mRRH as the user terminal.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, of the invention other
Feature, objects and advantages will become more apparent:
Fig. 1 shows the schematic diagram for implementing segmentation cell in the prior art；
Fig. 2 shows a kind of BBU divided within a wireless communication network for implementing cell disclosed according to the present invention
The module map of equipment；
Fig. 3 is shown in an indoor cell, and damage is isolated between detecting different mRRH in disclosed scheme through the invention
Consume the schematic diagram of situation；
Fig. 4 shows disclosed a kind of method flow for detecting isolation loss situation between different mRRH according to the present invention
Figure；
Fig. 5 is shown in an indoor cell, through the invention user distribution feelings in disclosed scheme detecting cell
The system schematic of condition；
Fig. 6 shows the method for the user distribution situation of difference mRRH in a kind of detecting cell disclosed according to the present invention
Flow chart；
Fig. 7 shows the cell schematic diagram that scheme disclosed according to the present invention implements segmentation to cell；And
Fig. 8 shows a kind of method flow for implementing cell segmentation within a wireless communication network disclosed according to the present invention
Figure.
Specific embodiment
In the following detailed description of the preferred embodiment, reference is constituted to the appended attached drawing of present invention a part.Institute
Attached attached drawing, which has been illustrated by way of example, can be realized specific embodiment.Exemplary embodiment is not intended to
Exhaustive all embodiments according to the present invention.It is appreciated that without departing from the scope of the present invention, can use other
Embodiment can also carry out the modification of structure or logic.Therefore, it is below specific descriptions and it is unrestricted, and this
The range of invention is defined by the claims appended hereto.In addition, although the step of method is described in specification in a particular order
Suddenly, but this does not require that or implies must execute these operations in this particular order, or have to carry out whole institutes
The operation shown just is able to achieve desired as a result, on the contrary, the step of describing can change and execute sequence.Additionally or alternatively, may be used
To omit certain steps, multiple steps are merged into a step and are executed, and/or a step is decomposed into multiple steps and is held
Row.
The process of existing segmentation cell (cell) is shown on the right of Fig. 1, which be used to expand mobile communication system
The capacity of system.In this example, the radio coverage area of big cell site is passed through regulation power rank and/or using reduction
Antenna height is divided with reducing overlay area.Cell site is reduced by the boundary of the radio frequency of change cell site
Radio coverage area (as the effect that cell is further separated), and allow to be added new cell site.It is left
Edge graph 1 shows the indoor cell splitting scheme for indoor wireless networks, and with the increase of portfolio, 3 cells are impartial
Segmentation to 16 new cells.
Usually, in open environment outdoors, macrocell is the hexagonal shape of rule, so cell segmentation side
Case is the splitting scheme with approximate 1: 3 or 1: 4, and existing indoor splitting scheme used is almost identical as outdoor scheme.It is this kind of
The shortcomings that cell splitting scheme, is as follows:
1) current area segmentation is cell to be regularly divided into several cells.It is rough estimate and divides.For example,
In the biggish situation of portfolio, to one 9 layers 3 cells of building mean allocation, each cell is responsible for covering 3 floors.
2) current area segmentation is not the distribution of instant tracking user to implement.Since the low speed of indoor user moves
It is dynamic, so tracking is feasible for cell cutting procedure and helps immediately, and it is not used in the prior art.
3) handover scheme and timing node of cell segmentation are fixed.Such as one the day time in building building will be assigned
3 cell ID only have a cell ID at night.The switching of number of cells will carry out on scheduled timing node, such as 21:
00。
4) it is not bound with the isolation loss characteristic of different antennae (mRRH, antenna are integrated on RRH) to implement to optimize,
Frequency reuse can be used between the mRRH of isolation.Sometimes isolation loss is not high but by some special schemes (such as in antenna
Regulation power), still frequency of use it can be reused between these nonideal isolated antennas.
In order to overcome above-mentioned technical problem in the prior art, the invention discloses one kind to implement within a wireless communication network
The method and its equipment of cell segmentation.Unlike the prior art, the scheme of segmentation cell disclosed in this invention is based on user
Distribution the case where and mRRH between isolation loss the case where, that is to say, that scheme disclosed in this invention avoids machine
Entire cell is fifty-fifty or robotically divided into multiple cells, but is damaged according to the isolation between the distribution situation and mRRH of user
The case where consumption, implements corresponding cell segmentation.
Before how introducing according to the implementation cell segmentation of the isolation loss situation and user distribution situation of mRRH, Wo Menxian
The scheme of isolation loss situation and detecting intra-cell users are distributed between the different mRRH of detecting disclosed in introduction according to the present invention
Scheme.
As shown in Fig. 2, Fig. 2 disclose it is a kind of within a wireless communication network for implementing the BBU equipment 200 of cell segmentation
Module map, the equipment 200 include: cell segmenting device 210, isolation loss confirmation device 220, user distribution confirmation device 230,
Wherein, isolation loss confirmation device 220 is used to confirm the isolation loss situation in cell between difference mRRH, user distribution confirmation
Device 230 is used to confirm the distribution situation of user in cell.
It is to be noted that the isolation loss confirmation device 220 and user distribution confirmation device 230 are it is not necessary to packet
Contained in the equipment 200, it is also possible to independent device.
Below by taking indoor cell shown in Fig. 3 as an example, in conjunction with the module map of Fig. 2 and the flow chart introduction of Fig. 4 according to this hair
The scheme of isolation loss situation between the bright disclosed different mRRH of detecting:
Cell 1 has 16 mRRH in Fig. 3, has the user of different number in the service range of each mRRH, each
Isolation loss value between mRRH is different.In order to determine the isolation loss value between these mRRH, it is possible to implement shown in Fig. 4
Method.
In step 402, cell distribution module 221 using a mRRH as mRRH to be measured (such as selection mRRH11), for this
mRRH(mRRH11) and its adjacent mRRH distribute one respectively for measuring the interim cell ID of isolation loss；
In step 404, control module 222 is measured to the mRRH (mRRH11) user terminal (such as UE2, UE3) send control
System order the, so that mRRH (mRRH11) user terminal in coverage measures the mRRH (mRRH11) SINR and adjacent small
The SINR of mRRH in area.
In a step 406, computing module 223 is isolated, receives measurement result from user terminal (such as UE2, UE3) and calculates and be somebody's turn to do
Isolation loss value between mRRH and adjacent mRRH.In the present invention, the isolation loss between mRRH mRRH adjacent thereto
Value is the difference of the SINR of the SINR of mRRH mRRH adjacent thereto, such as mRRH11With mRRH7Between isolation loss value be
(SINR11-SINR7).Since the different user terminals in mRRH are located at the different location of the serving cell, we can not know use
Family end is the center or marginal position positioned at cell.Therefore, in the present invention, we are measured to based on different user end
SINR and calculate acquisition isolation loss value implement average computation, when measure cell in number of users it is enough when, the isolation
The result of loss value will be very accurate.The calculated isolation loss value will be sent to isolation loss table generation module
To generate isolation loss table in 224.
In a step 408, it is confirmed whether the mRRH arrived there are also non-repeating query, if there is then selecting next mRRH as to be measured
MRRH, and it is again carried out step 402-406.After all mRRH in cell all cross by repeating query, isolation loss table generation module
224 generate isolation loss table in step 410.
From the perspective of statistical average, if testing time long enough, the number of test is enough, passes through the above method
The result of the isolation loss measured is more accurate.Once isolation loss table is established, can by prolonged use, such as:
Half a year or until building fit up again.Further, since the resource of Temporary Cell ID for test is limited, this programme can be with
Implemented by subregion, it means that on implementing in another region again after the mRRH in a region is tested
State method.
We further illustrate this method by an example below, for Fig. 3, there is 16 mRRH in the region, when
mRRH11When as the mRRH for needing to measure, mRRH11The cell at place is the covering of test cell, UE2 and UE3 in the cell
In.UE2 and UE3 detects mRRH11With adjacent mRRHi(i=1,2 ..., 16, and i ≠ 11) SINR and by service mRRH11
All SINR detected are fed back to BBU.Corresponding isolation loss value can be obtained according to the measurement result of UE2, due to us
It can not know the specific location of UE2, it means that we do not know UE2 with being located at center or the cell edge of test cell
Band.In general, the data result that the user of only center of housing estate measures can establish the accurate isolation loss value between mRRH.Cause
This, we use the mode of cumulative mean, implement average operation to the isolation loss value of the measurement result acquisition by UE2 and UE3
To obtain final isolation loss table.Matrix I is the illustrative isolation loss table obtained based on distribution situation shown in Fig. 3:
In the table, the arithemetic unit in matrix is dB, the 11st row the 1st column the result is that 32, it means that mRRH1With
mRRH11Between isolation loss be 32dB.From the data, the two apart from it is far or because construction material decaying caused by
Space loss is very high.
Below with schematic diagram shown in fig. 5, it is public that institute according to the present invention is introduced in conjunction with the module map of Fig. 2 and the flow chart of Fig. 6
Open a kind of scheme for detecting user distribution situation in cell:
This programme problem to be solved is that identification user is mostly in the coverage area of which distribution mRRH.Dividing
In cloth mRRH system, user receives downlink composite signal from each different mRRH, but user cannot distinguish between it is each
The signal of mRRH.In the present invention, we confirm that user is mainly situated in the coverage area of which mRRH by uplink signal
In.
In step 602, backup acquisition module 231 obtains the uplink vector signal of some user terminal from each mRRH
Backup, and the backup is sent in the signal confirmation module 232 for communicating with connection, wherein the user terminal is to need to be measured
The user terminal of distributing position.
In step 604, signal confirmation module 232 obtains up channel distribution letter from the baseband processing unit in Fig. 5
Breath, up channel distribution information indicate the corresponding relationship of each uplink vector signal and each mRRH.The signal confirmation
Module 232 distributes information according to the up channel, the signal strength of the uplink vector signal of the corresponding different mRRH of confirmation (such as
SINR), and confirmation result (signal strength of uplink vector signal received by each mRRH) it is sent to the company of communicating with
In the signal analysis module 233 connect.
In step 606, signal analysis module analyzes the signal strength of each uplink vector signal, has maximum to find out
The uplink vector signal of signal strength, and in step 608 corresponding to the uplink vector signal with maximum signal
Main service mRRH of the mRRH as the user terminal.The analysis result will be sent in user profile table generation module 234.
In step 610, can reaffirm whether there are also the distributions of user terminal to need to confirm, if so, then real again
Step 602-608 is applied, if it is not, implementation steps 612, generate user profile table in user profile table generation module 234.
In a specific embodiment, which can be indicated with following matrix form (matrix F)
Wherein coordinate 1010 indicates mRRH11Deployed position, 0000 is mRRH1Deployed position, matrix value 13 means
mRRH11Covering under have 13 activation users.
After having introduced and how detecting between different mRRH isolation loss situation and detecting intra-cell users distribution situation, I
Will introduce and how cell be implemented to divide using isolation loss situation between mRRH and detecting intra-cell users distribution situation.
Below by taking indoor cell shown in Fig. 7 as an example, in conjunction with the module map of Fig. 2 and the flow chart introduction of Fig. 8 according to this hair
The scheme of bright disclosed segmentation cell:
It include: demand number confirmation module 211, the first searching module 212, cell in cell segmenting device 210 as shown in Figure 2
Divide module 213, first judgment module 214 and merges confirmation module.Merge confirmation module in include the second searching unit 215,
Second judgment unit 216 and cumulative calculation unit 217.
When needing to implement to divide to cell, in step 802, user distribution confirmation device 230 first confirms current area
In user distribution situation, and generate corresponding user profile table and be sent to demand number confirmation module 211 and the first searching module
In 212.
In step 804, demand number confirmation module 211 confirms the sum of any active ues according to user profile table and calculating is worked as
The demand number N of preceding cell, for example, if active user's number is 300, it is assumed that a cell can serve 50 users, that
Cell number after segmentation should be 6.
In step 806, the first searching module 212 finds out one in user profile table has most numbers of users
MRRH (in order to distinguish with other mRRH, which is called target mRRH by we).
In step 810, the first searching module 212 further confirms that whether the number of users of the target mRRH found out is full
The segmentation threshold of foot (being greater than or equal to) cell:
If it is satisfied, then implementation steps 816: cell segmentation module 213 to the target mRRH individually distribute one it is new
Cell ID, and the target mRRH labeled as mRRH has been distributed, to indicate that the mRRH has been carried out over-segmentation.If discontented
Foot, then implementation steps 812 and step 814: by merge confirmation module found out from the adjacent mRRH of target mRRH it is annexable
mRRH。
In step 812, the second searching unit 215 obtains isolation loss table from isolation loss confirmation device 220, then
According to the isolation loss table, a phase with target mRRH with minimum isolation loss value is determined from unappropriated mRRH
Adjacent mRRH.For example, if mRRH11It is target mRRH, and mRRH12It was not previously allocated new cell ID, then according to matrix
I, having the adjacent mRRH of minimum isolation loss value is exactly mRRH12。
What then the second searching unit 215 was found out there is the adjacent mRRH of minimum isolation loss value to inform the second judgement
Unit 216, second judgment unit 216 confirm whether the adjacent mRRH is worth merging with target mRRH, when adjacent mRRH institute
When the number of users having is considerably less, does not have the value being merged and therefore set the optional threshold of minimum in the present invention
Value, second judgment unit 216 judge whether the number of users of the adjacent mRRH meets and (be greater than or equal to) minimum optional threshold value,
If be unsatisfactory for the minimum optional threshold value, which is not the annexable adjacent mRRH to be looked for, at this point, this is adjacent
MRRH will be marked as having distributed mRRH to prevent from being chosen by second searching unit again.If it is optional to meet the minimum
When threshold value, which is the annexable adjacent mRRH to be looked for.
In step 814, cumulative calculation unit 217 obtains judging result from second judgment unit 216, and combinable
Adjacent mRRH be added with the number of users of target mRRH with confirm it is accumulative after number of users whether meet cell segmentation threshold:
The implementation steps 816 if meeting: cell divides module 213 and is the target mRRH and corresponds to target mRRH
The new cell ID of all combinable mRRH joint distributions one, and the target mRRH and the combinable mRRH are labeled as
MRRH is distributed.
Otherwise, it is next with minimum isolation loss value to inform that the second searching unit 215 continues to look for for cumulative calculation unit 217
Adjacent mRRH, it may be assumed that return step 812 continues to look for next annexable adjacent mRRH.
In step 818, first judgment module 214 is implemented in cell segmentation module 213 every time after new community-ids distribution
Whether the quantity of confirmation cell has reached the demand number N of cell；If reached, cell segmentation terminates；If not up to,
Inform that the first searching module 212 continues implementation steps 808.
We further illustrate the splitting scheme by a specific example below, by taking cell shown in Fig. 7 as an example, it is assumed that
Isolation loss table is as shown in matrix I, and user profile table is as shown in matrix F, and cell segmentation threshold is set as 35, minimum optional threshold value
It is 5.
Firstly, we can acquire the quantity required of the cell after dividing by calculating, it may be assumed that total number of users Total_
UE_numbers=1+16+12+5+ ...+16+0+7+8=126, cell demand number are
Then, the maximum value in user profile table is found out, which is 20, corresponds to mRRH9, since 20 less than cell
Segmentation threshold 35, so needing using the scheme of combined optimization to be the mRRH9Annexable adjacent mRRH is found out, and is divided for them
With a common cell ID.Specifically, being searched out in isolation loss table (matrix I) and mRRH9Between isolation loss value
The smallest mRRH.By searching for caning be found that mRRH13Corresponding value is 9dB, is the minimum value in the 9th row.Due to mRRH9's
Number of users meets minimum optional threshold value, therefore can be used as annexable adjacent mRRH.Cumulative mRRH9And mRRH13User
Number, once accumulative number of users is more than 35, new cell ID will be assigned；Otherwise find out again next annexable mRRH carry out it is tired
Add.Herein, 20+16 > 35 therefore, mRRH9And mRRH13A common cell ID is assigned.Similar, by identical
Step, cell ID 2 and 3 can also be assigned.
It should be pointed out that in the process (third time is divided) for generating cell 2, mRRH11By as target mRRH,
mRRH11With mRRH7And mRRH10Between have identical isolation loss value 13dB, below there is the mRRH of 16dB8, this meaning
MRRH7And mRRH10Compare mRRH8Come and mRRH with higher priority11Implement to merge, but this method final choice
mRRH8As annexable mRRH, this is because minimum optional threshold value is set to 5, if the number of users of mRRH less than 5, is somebody's turn to do
MRRH will be ignored without merging, therefore, mRRH7And mRRH10It cannot be merged.
The matrix of cell ID below can be obtained after the segmentation that method disclosed according to the present invention completes cell:
Cell ID matrix is the result of cell segmentation.It is mRRH that wherein coordinate 1000 is corresponding9, and the mRRH's is small
Area ID is 4.It should be pointed out that the cell ID of all mRRH is cell 1 before dividing cell.So it is remaining not again
The mRRH of distribution new community-ids still falls within cell 1.When portfolio declines, cell combining process should be carried out to save power
And spectrum efficiency is improved, cell combining process is to divide reversed process with cell.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
How from the point of view of, the present embodiments are to be considered as illustrative and not restrictive.In addition, it will be evident that one word of " comprising " not
Exclude other elements and steps, and wording "one" be not excluded for plural number.The multiple element stated in device claim can also
To be implemented by one element.The first, the second equal words are used to indicate names, and are not indicated any particular order.
Claims (12)
1. a kind of method for implementing cell segmentation within a wireless communication network, wherein comprising steps of
A. confirm the isolation loss situation in cell between different micropower far end radio frequency head mRRH；
B. confirm the user distribution situation in the cell, and user profile table is established according to the user distribution situation；
C. cell segmentation is implemented according to the isolation loss situation and the user distribution situation,
Wherein, the step C is specifically included:
C1. according to the user profile table, confirm the sum of any active ues and calculate the demand number N of cell；
C2. according to the user profile table, the mRRH with most numbers of users is found out from unallocated mRRH as target
mRRH；
C3. confirm whether the number of users of the target mRRH meets cell segmentation threshold；
C31. if it is satisfied, then distributing a new cell ID to the target mRRH, and the target mRRH labeled as
Distribute mRRH；
It C32. is the target if conditions are not met, then going out at least one combinable mRRH according to the Scheme Choice of combined optimization
The mRRH and combinable mRRH joint distribution one new cell ID, and the target mRRH and the combinable mRRH are marked
It is denoted as and has distributed mRRH；
C4. judge whether the quantity of current cell has reached the demand number N of the cell；
If reached, cell segmentation terminates；
If not up to, implementation steps C2.
2. according to the method described in claim 1, wherein,
The step A further include: isolation loss table is established according to the isolation loss situation.
3. according to the method described in claim 1, wherein, it is combinable that the Scheme Choice according to combined optimization goes out at least one
The process of mRRH specifically includes:
I. according to the isolation loss table, determine that one with the target mRRH there is minimum damage is isolated from unappropriated mRRH
The adjacent mRRH of consumption value；
II. judge whether the number of users of the adjacent mRRH meets minimum optional threshold value:
If conditions are not met, the adjacent mRRH is then labeled as allocated mRRH, and implementation steps I；
If it is satisfied, then the adjacent mRRH is the combinable mRRH of the target mRRH；
III. confirm whether accumulative number of users meets the cell segmentation threshold, wherein the accumulative number of users is the target
The sum of the number of users of the number of users of mRRH and all combinable mRRH corresponding to the target mRRH:
When the accumulative number of users is unsatisfactory for the cell segmentation threshold, implementation steps I.
4. according to the method described in claim 2, wherein, the step A is specifically included:
One is distributed for measuring the Temporary Cell ID of isolation loss for each mRRH；
So that the user terminal in each Temporary Cell measures the SINR's of the mRRH of its place cell and mRRH of neighboring community
SINR；
According to the measurement result of the user terminal in each Temporary Cell, calculate between the mRRH of the Temporary Cell and adjacent mRRH
Isolation loss value；
Isolation loss table is generated according to the isolation loss value.
5. according to the method described in claim 4, wherein, the isolation loss value is according to multiple use in the Temporary Cell
The multiple measurement results at family end and calculated mean value.
6. according to the method described in claim 2, wherein, the step B is specifically included:
I. the backup of the uplink signal of a user terminal not positioned is obtained, wherein including multiple uplink vectors in the backup
Signal；
Ii. it obtains up channel and distributes information, and determine mRRH and letter corresponding to each uplink vector signal in the backup
Number intensity；
Iii. the signal strength of each uplink vector signal is analyzed, to find out the uplink vector signal with maximum signal；
Iv. using mRRH corresponding to the uplink vector signal with maximum signal as the main service of the user terminal
mRRH；
V. it is confirmed whether that there are also the user terminals that are not positioned: if there is then, implementation steps i；If it is not, generating user distribution
Table.
7. a kind of within a wireless communication network for implementing the BBU equipment of cell segmentation, characterized by comprising:
Isolation loss confirms device, is configured as the isolation loss situation in confirmation cell between difference mRRH；
User distribution confirms device, is configured as confirming the user distribution situation in the cell, and according to the user
Distribution situation establishes user profile table；
Cell segmenting device is configured as implementing small differentiation according to the isolation loss situation and the user distribution situation
It cuts,
Wherein, the cell segmenting device specifically includes:
Demand number confirmation module is configured as confirming the sum of any active ues according to the user profile table and calculates cell
Demand number N；
First searching module is configured as being found out from unallocated mRRH according to the user profile table with most users
The mRRH of quantity confirms whether the number of users of the target mRRH meets cell segmentation threshold as target mRRH；
Cell divides module, is configured as distributing cell ID to mRRH；
Merge confirmation module, is configured as going out according to the Scheme Choice of combined optimization at least one corresponding to the target mRRH
Combinable mRRH；
First judgment module is configured as judging the demand number the N whether quantity of current cell has reached the cell.
8. equipment according to claim 7, which is characterized in that
The isolation loss confirms that device includes:
Isolation loss table generation module is configured as establishing isolation loss table according to the isolation loss situation.
9. equipment according to claim 7, which is characterized in that the merging confirmation module specifically includes:
Second searching unit is configured as according to the isolation loss table, determined from unappropriated mRRH one with it is described
Target mRRH has the adjacent mRRH of minimum isolation loss value；
Second judgment unit is configured as judging whether the number of users of the adjacent mRRH meets minimum optional threshold value: such as
Fruit is unsatisfactory for, then the adjacent mRRH is labeled as allocated mRRH；If it is satisfied, then the adjacent mRRH is the target
The combinable mRRH of mRRH；
Cumulative calculation unit is configured as confirming whether accumulative number of users meets the cell segmentation threshold, wherein described tired
Meter number of users be the target mRRH number of users with corresponding to the target mRRH all combinable mRRH number of users it
With.
10. equipment according to claim 8, which is characterized in that the isolation loss confirms device further include:
Cell distribution module is configured as each mRRH and distributes one for measuring the Temporary Cell ID of isolation loss；
Control module is measured, the mRRH of cell where the user terminal being configured such that in each Temporary Cell measures it
The SINR of SINR and the mRRH of neighboring community；
Computing module is isolated, is configured as the measurement result according to the user in each Temporary Cell, calculates the Temporary Cell
MRRH and adjacent mRRH between isolation loss value.
11. equipment according to claim 10, which is characterized in that the isolation loss value is according in the Temporary Cell
A plurality of clients multiple measurement results and calculated mean value.
12. equipment according to claim 8, which is characterized in that the user distribution confirmation device specifically includes:
Backup obtains module, is configured as obtaining the backup of the uplink vector signal of a user terminal not positioned, wherein
It include multiple uplink vector signals in the backup；
Signal analysis module is configured as obtaining up channel distribution information, and determines each uplink vector in the backup
MRRH corresponding to signal and signal strength；
Signal confirmation module is configured as analyzing the signal strength of each uplink vector signal, to find out with peak signal
The uplink vector signal of intensity, and using mRRH corresponding to the uplink vector signal with maximum signal as the use
The main service mRRH at family end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510089889.XA CN105992229B (en) | 2015-02-27 | 2015-02-27 | A kind of method and its equipment for implementing cell segmentation within a wireless communication network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510089889.XA CN105992229B (en) | 2015-02-27 | 2015-02-27 | A kind of method and its equipment for implementing cell segmentation within a wireless communication network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105992229A CN105992229A (en) | 2016-10-05 |
| CN105992229B true CN105992229B (en) | 2019-08-27 |
Family
ID=57038836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510089889.XA Active CN105992229B (en) | 2015-02-27 | 2015-02-27 | A kind of method and its equipment for implementing cell segmentation within a wireless communication network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105992229B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106879011B (en) * | 2017-04-19 | 2020-01-24 | 北京佰才邦技术有限公司 | Method and device for cell networking |
| CN113015177B (en) * | 2019-12-20 | 2022-08-23 | ***通信有限公司研究院 | Cell splitting method, device and medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102256350A (en) * | 2010-05-21 | 2011-11-23 | 鼎桥通信技术有限公司 | Positioning method |
| CN103222299A (en) * | 2012-12-06 | 2013-07-24 | 华为技术有限公司 | Downlink direction remote radio unit selection decision method and apparatus |
| CN103546260A (en) * | 2012-07-10 | 2014-01-29 | 华为技术有限公司 | Multi-radio remote unit cell-shared coordinating multipoint transmission method and device |
| CN103688585A (en) * | 2013-06-07 | 2014-03-26 | 华为技术有限公司 | Signal transmission method and device for multi-RRU co-cell |
| CN103841582A (en) * | 2013-12-30 | 2014-06-04 | 上海华为技术有限公司 | Control method and device |
-
2015
- 2015-02-27 CN CN201510089889.XA patent/CN105992229B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102256350A (en) * | 2010-05-21 | 2011-11-23 | 鼎桥通信技术有限公司 | Positioning method |
| CN103546260A (en) * | 2012-07-10 | 2014-01-29 | 华为技术有限公司 | Multi-radio remote unit cell-shared coordinating multipoint transmission method and device |
| CN103222299A (en) * | 2012-12-06 | 2013-07-24 | 华为技术有限公司 | Downlink direction remote radio unit selection decision method and apparatus |
| CN103688585A (en) * | 2013-06-07 | 2014-03-26 | 华为技术有限公司 | Signal transmission method and device for multi-RRU co-cell |
| CN103841582A (en) * | 2013-12-30 | 2014-06-04 | 上海华为技术有限公司 | Control method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105992229A (en) | 2016-10-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104160725B (en) | Method for carrying out geographical load balancing using distributing antenna system | |
| US8774800B2 (en) | UE initiated frequency partitioning based CoMP scheme for downlink cellular communications | |
| CN104641695B (en) | Energy saving method in cellular communication system | |
| CN103491553B (en) | A kind of wave beam adjustment method and equipment | |
| US9020060B2 (en) | Virtual multiple-input multiple-output communication method and device | |
| WO2013112082A1 (en) | A network node, a low power radio base station and methods therein for controlling resource distribution | |
| CN101384056B (en) | Scheduling method for service division sector access by uplink packet | |
| US10285186B2 (en) | System and method for grouping and selecting transmission points | |
| CN105451244B (en) | A kind of cover probability estimation method of small base station cooperation | |
| CN102905277B (en) | A kind of base station, the system and method for selection cooperative node | |
| CN103249160B (en) | A kind of resource allocation methods in lte-a system under CoMP | |
| CN105992229B (en) | A kind of method and its equipment for implementing cell segmentation within a wireless communication network | |
| CN103002495A (en) | Assessment method and device of wireless network structure | |
| Park et al. | A new traffic load based cell zooming algorithm in dense small cell environments | |
| EP2519069B1 (en) | Base station, communication terminal, usable radio resource setting method, and base station control program | |
| CN103052112B (en) | A kind of load balancing method between cells and base station | |
| CN101606409A (en) | Method based on the cell pattern managing radio resources | |
| EP2848066B1 (en) | JOINT ASSIGNMENT AND SCHEDULING FOR OVERLAPPING CoMP CLUSTERS | |
| CN104768230B (en) | A kind of chance interference management method for isomery Cellular Networks | |
| CN102970706A (en) | Selection method and base station for collaborative feedback set | |
| Taranetz et al. | A circular interference model for wireless cellular networks | |
| Ghosh et al. | Optimising CDMA cell planning with soft handover | |
| Jamaa et al. | Quality indicator matrices and their contribution to WCDMA network design | |
| CN104144445A (en) | Cell selection method, base station and wireless communication system | |
| KR102192239B1 (en) | Method for Cluster-based Load Balancing in Cellular Networks |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 201206 Shanghai, Pudong Jinqiao Ning Bridge Road, No. 388, No. Applicant after: Shanghai NOKIA Baer Limited by Share Ltd Address before: 201206 Shanghai, Pudong Jinqiao Ning Bridge Road, No. 388, No. Applicant before: Shanghai Alcatel-Lucent Co., Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |