CN103228014B - Plot joint dispatching method and plot joint dispatching system - Google Patents
Plot joint dispatching method and plot joint dispatching system Download PDFInfo
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Abstract
The invention provides a kind of plot joint dispatching method, including: step 102, from multiple Microcells, select the Microcell that at least two is associated, and the Microcell composition described at least two being associated is used for the cell cluster of combined dispatching；Step 104, coordinates the user scheduling information that each Microcell in described cell cluster is corresponding, and combined coding is federated user schedule information；Step 106, sends described federated user schedule information to the terminal serviced by described cell cluster.The invention allows for a kind of plot joint dispatching system.By technical scheme, the Microcell of dense distribution can be carried out the division of cell cluster, thus be scheduling coordinating between interior multiple Microcells, same cells bunch, it is ensured that comprise the transmission reliability of the control signaling of user scheduling information.
Description
Technical field
The present invention relates to communication technical field, in particular to a kind of plot joint dispatching method and
A kind of plot joint dispatching system.
Background technology
The subject study (RP-122032) of Microcell is opened in 3GPP Rel-12.Microcell
Include the micro-base station of Pico() and Femto(Home eNodeB).The main purpose of this problem be for
The scene proposed in early stage Microcell demand behaviors (TR36.932), optimizes design further and improves frequency
Spectrum efficiency, reduction control signaling and pilot-frequency expense.Dispose for indoor and hot spot region, statement of requirements
Point out that Microcell dense deployment can improve the data rate of user, but mutual interference is the most more
Seriously.How to solve one of the main research range that the communication reliability under dense deployment is this problem.
Rel-11 and before in version, had, for Pico and Femto, the class that some interference eliminate
Topic research.Pico provides the scheme of a kind of hot spot service shunting, and research has found that Pico base station
Transmit power less (compared with macro base station), the effect of service distributing is less obvious, and Pico's is negative
Carry only about 60%.To this end, 3GPP proposes cell coverage expansion (Cell Range
Expansion) technology, makes terminal priority access Pico little by arranging access amount of bias (bias)
District.But the Pico in CRE region service terminal receive from macro base station jamming power very
Greatly, carried out two problems of eICIC and feICIC for this 3GPP, passed through ABS(Almost
Blank subframe) the time-multiplexed control signal of macro base station and Pico of technology, it is ensured that control
The reliability of channel.Femto is the Home eNodeB that a kind of user arranges, is connect by modes such as ADSL
Enter to core net, relatively more random in indoor deployed position, not through the network planning of operator,
It is possible that the scene that multiple Femto are closely.Femto often uses CSG simultaneously
(Close Subscribe Group) configures, and i.e. only provides service for authorized user, and Femto is to neighbouring
The interference of unauthorized user the biggest.For this problem, 3GPP provides Femto power
The interference management modes such as control, control channel frequency multiplexing solve interference problem, but at Femto base
The region that density of standing is big is still and can not work very well.
The control signaling of PDCCH carrying contains user scheduling information and data message instruction, is eventually
End is properly received the guarantee of information.Being different from data message, PDCCH signal can not be with HARQ etc.
Technical protection, therefore it is required that error probability is less than 1%.In 3GPP Rel-11 studies, for
PDCCH carries the less problem of dispatch, it is proposed that ePDCCH problem extends descending control and believes
The capacity in road.
But in the deployment scenario research of 3GPP RAN1, intensive Microcell scene is defined as one
Disposing 4 same frequency Microcells in floor, this scene disposes more crypto set than traditional Pico.And
And different from traditional F emto, multiple Microcells use OSG(Open Subscribe Group) join
Put, i.e. validated user can access any Microcell.The covering weight of multiple Microcells in this scene
Closing, annoyance level will be serious than Pico and Femto before Rel-11, existing interference management
Method can not effectively eliminate interference, the reliability of signalling it is difficult to ensure that, for multiple capable and experienced
The signal transmission method disturbing source becomes most important and problem demanding prompt solution.
Summary of the invention
The present invention is based on the problems referred to above, it is proposed that a kind of plot joint dispatching technology, can be to close
The Microcell of collection distribution carries out the division of cell cluster, thus the multiple Microcells interior in same cells bunch it
Between be scheduling coordinate, it is ensured that comprise the transmission reliability of the control signaling of user scheduling information.
In view of this, the present invention proposes a kind of plot joint dispatching method, including: step 102,
From multiple Microcells, select the Microcell that at least two is associated, and described at least two is correlated with
The Microcell composition of connection is for the cell cluster of combined dispatching；Step 104, coordinates in described cell cluster
The user scheduling information that each Microcell is corresponding, and combined coding is federated user schedule information；Step
106, described federated user schedule information is sent to the terminal serviced by described cell cluster.
In this technical scheme, i.e. there is more strongly disturbing Microcell in " Microcell being associated ", logical
Cross and these Microcells are formed coordinates user tune between cell cluster, and all Microcells in cell cluster
Degree information, thus send comprise the control signaling of user scheduling information time, can avoid receiving small
Interference between district, is conducive to improving the reliability controlling signalling process, meets error probability low
In the requirement of 1%.
In technique scheme, it is preferable that described step 102 includes: in the plurality of Microcell
Each Microcell measure the parameter preset between other Microcell respectively；Wherein, when measuring
When the numerical value of the parameter preset arrived is less than or equal to the first threshold preset, by corresponding for this parameter preset
Microcell is added in described cell cluster, and/or when at least one Microcell and other Microcell it
Between the numerical value of parameter preset both less than preset Second Threshold time, will at least one Microcell described work
For head community, and by described head community and and at least one described head community between parameter preset
Numerical value adds to described cell cluster less than or equal to the Microcell of described first threshold.
In this technical scheme, can be according to actual conditions, the number to first threshold, Second Threshold etc.
Value is configured, to be adapted to actual requirement.Propose two kinds of situations: in the case of the first herein,
After parameter preset and first threshold are compared, directly determine whether as in current area bunch
Microcell；In the case of the second, first select to lift one's head community, then according to other Microcells with should
Disturbed condition between head community, determines whether the Microcell interior as current area bunch, its
In, the number of head community can be one or more, when there is many heads community simultaneously, is conducive to
The robustness of current area bunch.It should be noted that specifically, can be used alone both the above side
Formula carries out the generation of cell cluster, it is also possible to use both the above mode to select Microcell simultaneously,
If use both the above mode simultaneously, then Microcell is meeting any of which situation or is meeting two kinds simultaneously
During situation, can be added in current area bunch.
In technique scheme, it is preferable that described parameter preset includes: coupling loss and/or return
Pass chain-circuit time delay.
In this technical scheme, only enumerate wherein both relatively conventional parameters, it is apparent that relevant
, other parameters of the disturbed condition that can reflect small interval are also readily apparent that, it should belong to
Within protection scope of the present invention.
In technique scheme, it is preferable that described step 102 includes: obtain the right of terminal to report
The measurement report of the pilot signal strength of the plurality of Microcell；Wherein, when described pilot signal strength
During more than or equal to the signal strength threshold preset, Microcell corresponding for this pilot signal strength is added
To described cell cluster.
In this technical scheme, except the first situation above-mentioned, the second situation, it is also proposed that the 3rd
The situation of kind, the pilot signal strength i.e. detected by terminal, thus judge between the Microcell of correspondence
Disturbed condition, and be divided to correspondence cell cluster in.Certainly, the third situation can be individually real
Existing, it is also possible to jointly to realize with the first situation, the second situation.If use three of the above side simultaneously
Formula, then Microcell is when meeting any of which situation or meeting three kinds of situations simultaneously, can be added
To current area bunch.
In technique scheme, it is preferable that described step 104 also includes: in described cell cluster
By return link and/or the information receiving and transmitting function of terminal between Microcell, it is achieved described user is adjusted
The coordination of degree information.
In this technical scheme, specifically, the return link between the Microcell in cell cluster can be adopted
With interfaces such as X2, S1, and return link time delay can be detected, when return link time delay
During more than or equal to the time delay numerical value preset, the information receiving and transmitting function of Selection utilization terminal, it is achieved to association
The forwarding of tune information；When return link time delay is less than the time delay numerical value preset, Selection utilization passback chain
Coordination information is directly transmitted on road.
In technique scheme, it is preferable that described step 106 also includes: by described cell cluster
And one of the predetermined threshold value that the numerical value of the parameter preset between other Microcell is both less than specified or many
Individual Microcell is as head community, and is sent the scheduling of described federated user by one or more described head communities
Information, wherein, described parameter preset includes coupling loss and/or return link time delay；Or by described
All Microcells in cell cluster send described federated user scheduling letter jointly at identical running time-frequency resource
Breath.
In this technical scheme, jointly send federated user schedule information by all Microcells, permissible
The terminal making this information of reception obtains diversity gain.
According to another aspect of the invention, it is also proposed that a kind of plot joint dispatching system, including: point
Group administrative unit, for selecting the Microcell that at least two is associated from multiple Microcells, and will
The Microcell composition that described at least two is associated is for the cell cluster of combined dispatching；Information generates single
Unit, for coordinating the user scheduling information that each Microcell in described cell cluster is corresponding, parallel connection is compiled in collaboration with
Code is federated user schedule information；Information transmitting unit, for sending out described federated user schedule information
Deliver to the terminal serviced by described cell cluster.
In this technical scheme, i.e. there is more strongly disturbing Microcell in " Microcell being associated ", logical
Cross and these Microcells are formed coordinates user tune between cell cluster, and all Microcells in cell cluster
Degree information, thus send comprise the control signaling of user scheduling information time, can avoid receiving small
Interference between district, is conducive to improving the reliability controlling signalling process, meets error probability low
In the requirement of 1%.
In technique scheme, it is preferable that described grouping management unit includes: parameter measurement sub-list
Unit, for each Microcell controlled in the plurality of Microcell measure respectively the Microcell with other it
Between parameter preset；Judgement processes subelement, for being less than when the numerical value measuring the parameter preset obtained
Or during equal to the first threshold preset, Microcell corresponding for this parameter preset is added to described cell cluster
In, and/or when the numerical value of the parameter preset between at least one Microcell and other Microcell is the least
When default Second Threshold, using at least one Microcell described as head community and little by described
District and and at least one described head community between the numerical value of parameter preset less than or equal to described first
The Microcell of threshold value is added to described cell cluster.
In this technical scheme, can be according to actual conditions, the number to first threshold, Second Threshold etc.
Value is configured, to be adapted to actual requirement.Propose two kinds of situations: in the case of the first herein,
After parameter preset and first threshold are compared, directly determine whether as in current area bunch
Microcell；In the case of the second, first select to lift one's head community, then according to other Microcells with should
Disturbed condition between head community, determines whether the Microcell interior as current area bunch, its
In, the number of head community can be one or more, when there is many heads community simultaneously, is conducive to
The robustness of current area bunch.It should be noted that specifically, can be used alone both the above side
Formula carries out the generation of cell cluster, it is also possible to use both the above mode to select Microcell simultaneously,
If use both the above mode simultaneously, then Microcell is meeting any of which situation or is meeting two kinds simultaneously
During situation, can be added in current area bunch.
In technique scheme, it is preferable that described parameter preset includes: coupling loss and/or return
Pass chain-circuit time delay.
In this technical scheme, only enumerate wherein both relatively conventional parameters, it is apparent that relevant
, other parameters of the disturbed condition that can reflect small interval are also readily apparent that, it should belong to
Within protection scope of the present invention.
In technique scheme, it is preferable that described grouping management unit includes: it is single that report processes son
Unit, obtains the measurement report of the pilot signal strength to the plurality of Microcell of terminal to report, works as institute
When stating pilot signal strength more than or equal to the signal strength threshold preset, by this pilot signal strength pair
The Microcell answered is added to described cell cluster.
In this technical scheme, except the first situation above-mentioned, the second situation, it is also proposed that the 3rd
The situation of kind, the pilot signal strength i.e. detected by terminal, thus judge between the Microcell of correspondence
Disturbed condition, and be divided to correspondence cell cluster in.Certainly, the third situation can be individually real
Existing, it is also possible to jointly to realize with the first situation, the second situation.If use three of the above side simultaneously
Formula, then Microcell is when meeting any of which situation or meeting three kinds of situations simultaneously, can be added
To current area bunch.
In technique scheme, it is preferable that described information generating unit controls in described cell cluster
By return link and/or the information receiving and transmitting function of terminal between Microcell, it is achieved described user is adjusted
The coordination of degree information.
In this technical scheme, specifically, the return link between the Microcell in cell cluster can be adopted
With interfaces such as X2, S1, and return link time delay can be detected, when return link time delay
During more than or equal to the time delay numerical value preset, the information receiving and transmitting function of Selection utilization terminal, it is achieved to association
The forwarding of tune information；When return link time delay is less than the time delay numerical value preset, Selection utilization passback chain
Coordination information is directly transmitted on road.
In technique scheme, it is preferable that described information transmitting unit controls in described cell cluster
One or more communities send described federated user schedule information, or control the institute in described cell cluster
Microcell is had jointly to send described federated user schedule information at identical running time-frequency resource；Wherein, by institute
State in cell cluster the predetermined threshold value that the numerical value of the parameter preset between other Microcell is both less than specified
One or more Microcells as described head community.
In this technical scheme, jointly send federated user schedule information by all Microcells, permissible
The terminal making this information of reception obtains diversity gain.
By above technical scheme, the Microcell of dense distribution can be carried out the division of cell cluster, from
And be scheduling coordinating between interior multiple Microcells, same cells bunch, it is ensured that comprise user scheduling letter
The transmission reliability of the control signaling of breath.
Accompanying drawing explanation
Fig. 1 shows the flow chart of plot joint dispatching method according to an embodiment of the invention；
Fig. 2 shows the block diagram of plot joint dispatching system according to an embodiment of the invention；
Fig. 3 shows the most multiple Microcells combined dispatching user scheduling information
Particular flow sheet.
Detailed description of the invention
In order to be more clearly understood that the above-mentioned purpose of the present invention, feature and advantage, below in conjunction with attached
The present invention is further described in detail by figure and detailed description of the invention.It should be noted that not
In the case of conflict, the feature in embodiments herein and embodiment can be mutually combined.
Elaborate a lot of detail in the following description so that fully understanding the present invention, but,
The present invention can implement to use other to be different from other modes described here, therefore, and the present invention
Protection domain do not limited by following public specific embodiment.
Fig. 1 shows the flow chart of plot joint dispatching method according to an embodiment of the invention.
As it is shown in figure 1, plot joint dispatching method according to an embodiment of the invention, including: step
102, from multiple Microcells, select the Microcell that at least two is associated, and by described at least two
The individual Microcell composition being associated is for the cell cluster of combined dispatching；Step 104, coordinates described community
The user scheduling information that each Microcell in bunch is corresponding, and combined coding is federated user scheduling letter
Breath；Step 106, sends described federated user schedule information to the end serviced by described cell cluster
End.
In this technical scheme, i.e. there is more strongly disturbing Microcell in " Microcell being associated ", logical
Cross and these Microcells are formed coordinates user tune between cell cluster, and all Microcells in cell cluster
Degree information, thus send comprise the control signaling of user scheduling information time, can avoid receiving small
Interference between district, is conducive to improving the reliability controlling signalling process, meets error probability low
In the requirement of 1%.
In technique scheme, it is preferable that described step 102 includes: in the plurality of Microcell
Each Microcell measure the parameter preset between other Microcell respectively；Wherein, when measuring
When the numerical value of the parameter preset arrived is less than or equal to the first threshold preset, by corresponding for this parameter preset
Microcell is added in described cell cluster, and/or when at least one Microcell and other Microcell it
Between the numerical value of parameter preset both less than preset Second Threshold time, will at least one Microcell described work
For head community, and by described head community and and at least one described head community between parameter preset
Numerical value adds to described cell cluster less than or equal to the Microcell of described first threshold.
In this technical scheme, can be according to actual conditions, the number to first threshold, Second Threshold etc.
Value is configured, to be adapted to actual requirement.Propose two kinds of situations: in the case of the first herein,
After parameter preset and first threshold are compared, directly determine whether as in current area bunch
Microcell；In the case of the second, first select to lift one's head community, then according to other Microcells with should
Disturbed condition between head community, determines whether the Microcell interior as current area bunch, its
In, the number of head community can be one or more, when there is many heads community simultaneously, is conducive to
The robustness of current area bunch.It should be noted that specifically, can be used alone both the above side
Formula carries out the generation of cell cluster, it is also possible to use both the above mode to select Microcell simultaneously,
If use both the above mode simultaneously, then Microcell is meeting any of which situation or is meeting two kinds simultaneously
During situation, can be added in current area bunch.
In technique scheme, it is preferable that described parameter preset includes: coupling loss and/or return
Pass chain-circuit time delay.
In this technical scheme, only enumerate wherein both relatively conventional parameters, it is apparent that relevant
, other parameters of the disturbed condition that can reflect small interval are also readily apparent that, it should belong to
Within protection scope of the present invention.
In technique scheme, it is preferable that described step 102 includes: obtain the right of terminal to report
The measurement report of the pilot signal strength of the plurality of Microcell；Wherein, when described pilot signal strength
During more than or equal to the signal strength threshold preset, Microcell corresponding for this pilot signal strength is added
To described cell cluster.
In this technical scheme, except the first situation above-mentioned, the second situation, it is also proposed that the 3rd
The situation of kind, the pilot signal strength i.e. detected by terminal, thus judge between the Microcell of correspondence
Disturbed condition, and be divided to correspondence cell cluster in.Certainly, the third situation can be individually real
Existing, it is also possible to jointly to realize with the first situation, the second situation.If use three of the above side simultaneously
Formula, then Microcell is when meeting any of which situation or meeting three kinds of situations simultaneously, can be added
To current area bunch.
In technique scheme, it is preferable that described step 104 also includes: in described cell cluster
By return link and/or the information receiving and transmitting function of terminal between Microcell, it is achieved described user is adjusted
The coordination of degree information.
In this technical scheme, specifically, the return link between the Microcell in cell cluster can be adopted
With interfaces such as X2, S1, and return link time delay can be detected, when return link time delay
During more than or equal to the time delay numerical value preset, the information receiving and transmitting function of Selection utilization terminal, it is achieved to association
The forwarding of tune information；When return link time delay is less than the time delay numerical value preset, Selection utilization passback chain
Coordination information is directly transmitted on road.
In technique scheme, it is preferable that described step 106 also includes: by described cell cluster
And one of the predetermined threshold value that the numerical value of the parameter preset between other Microcell is both less than specified or many
Individual Microcell is as head community, and is sent the scheduling of described federated user by one or more described head communities
Information, wherein, described parameter preset includes coupling loss and/or return link time delay；Or by described
All Microcells in cell cluster send described federated user scheduling letter jointly at identical running time-frequency resource
Breath.
In this technical scheme, jointly send federated user schedule information by all Microcells, permissible
The terminal making this information of reception obtains diversity gain.
Fig. 2 shows the block diagram of plot joint dispatching system according to an embodiment of the invention.
As in figure 2 it is shown, plot joint dispatching system 200 according to an embodiment of the invention, including:
Grouping management unit 202 is small for select from multiple Microcells that at least two is associated
District, and the Microcell composition described at least two being associated is used for the cell cluster of combined dispatching；Information
Signal generating unit 204, for coordinating the user scheduling letter that each Microcell in described cell cluster is corresponding
Cease, and combined coding is federated user schedule information；Information transmitting unit 206, for by described
Share family schedule information to send to the terminal serviced by described cell cluster.
In this technical scheme, i.e. there is more strongly disturbing Microcell in " Microcell being associated ", logical
Cross and these Microcells are formed coordinates user tune between cell cluster, and all Microcells in cell cluster
Degree information, thus send comprise the control signaling of user scheduling information time, can avoid receiving small
Interference between district, is conducive to improving the reliability controlling signalling process, meets error probability low
In the requirement of 1%.
In technique scheme, it is preferable that described grouping management unit 202 includes: parameter measurement
Subelement 2022, measures and other respectively for each Microcell controlled in the plurality of Microcell
Microcell between parameter preset；Judgement processes subelement 2024, pre-for obtain when measurement
When the numerical value of setting parameter is less than or equal to the first threshold preset, by Microcell corresponding for this parameter preset
Add in described cell cluster, and/or pre-when between at least one Microcell and other Microcell
During the Second Threshold that the numerical value of setting parameter is both less than preset, using at least one Microcell described as little
District, and by described head community and and at least one described head community between the numerical value of parameter preset little
In or add in described cell cluster equal to the Microcell of described first threshold.
In this technical scheme, can be according to actual conditions, the number to first threshold, Second Threshold etc.
Value is configured, to be adapted to actual requirement.Propose two kinds of situations: in the case of the first herein,
After parameter preset and first threshold are compared, directly determine whether as in current area bunch
Microcell；In the case of the second, first select to lift one's head community, then according to other Microcells with should
Disturbed condition between head community, determines whether the Microcell interior as current area bunch, its
In, the number of head community can be one or more, when there is many heads community simultaneously, is conducive to
The robustness of current area bunch.It should be noted that specifically, can be used alone both the above side
Formula carries out the generation of cell cluster, it is also possible to use both the above mode to select Microcell simultaneously,
If use both the above mode simultaneously, then Microcell is meeting any of which situation or is meeting two kinds simultaneously
During situation, can be added in current area bunch.
In technique scheme, it is preferable that described parameter preset includes: coupling loss and/or return
Pass chain-circuit time delay.
In this technical scheme, only enumerate wherein both relatively conventional parameters, it is apparent that relevant
, other parameters of the disturbed condition that can reflect small interval are also readily apparent that, it should belong to
Within protection scope of the present invention.
In technique scheme, it is preferable that described grouping management unit 202 includes: report processes
Subelement 2026, obtains the measurement of the pilot signal strength to the plurality of Microcell of terminal to report
Report, when described pilot signal strength is more than or equal to the signal strength threshold preset, by this pilot tone
In the Microcell interpolation extremely described cell cluster that signal strength signal intensity is corresponding.
In this technical scheme, except the first situation above-mentioned, the second situation, it is also proposed that the 3rd
The situation of kind, the pilot signal strength i.e. detected by terminal, thus judge between the Microcell of correspondence
Disturbed condition, and be divided to correspondence cell cluster in.Certainly, the third situation can be individually real
Existing, it is also possible to jointly to realize with the first situation, the second situation.If use three of the above side simultaneously
Formula, then Microcell is when meeting any of which situation or meeting three kinds of situations simultaneously, can be added
To current area bunch.
In technique scheme, it is preferable that described information generating unit 2024 controls described community
By return link and/or the information receiving and transmitting function of terminal between bunch interior Microcell, it is achieved to described
The coordination of user scheduling information.
In this technical scheme, specifically, the return link between the Microcell in cell cluster can be adopted
With interfaces such as X2, S1, and return link time delay can be detected, when return link time delay
During more than or equal to the time delay numerical value preset, the information receiving and transmitting function of Selection utilization terminal, it is achieved to association
The forwarding of tune information；When return link time delay is less than the time delay numerical value preset, Selection utilization passback chain
Coordination information is directly transmitted on road.
In technique scheme, it is preferable that described information transmitting unit 2026 controls described community
One or more bunch interior communities send described federated user schedule informations, or control described cell cluster
Interior all Microcells send described federated user schedule information jointly at identical running time-frequency resource；Its
In, the numerical value of the parameter preset between in described cell cluster and other Microcell is both less than specified
One or more Microcells of predetermined threshold value are as described head community.
In this technical scheme, jointly send federated user schedule information by all Microcells, permissible
The terminal making this information of reception obtains diversity gain.
Fig. 3 shows the most multiple Microcells combined dispatching user scheduling information
Particular flow sheet.
As it is shown on figure 3, the most multiple Microcells combined dispatching user scheduling letter
The idiographic flow of breath includes:
Step 302, composition combined dispatching region, adjacent Microcell.
Step 304, coordinates the user scheduling information between the Microcell in combined dispatching region, and will
Schedule information combined coding in region.
Step 306, sends federated user schedule information.
Specifically, in step 302, building form for combined dispatching region includes following several:
First kind of way: based on the coupling loss between base station
1) determine and be there is a need to carry out that combined dispatching region (or being referred to as " cell cluster ") divides is micro-
Community, all Microcells such as selected in certain area coverage divide, or by preliminary inspection
Survey and judge to there are all Microcells interfered；
2) coupling loss between the detection of each Microcell and other Microcells, such as Microcell A,
B, C ... measuring the coupling loss obtained is CLAB、CLAC、CLBC……；
3) by the numerical value of these coupling losses and coupling loss thresholding CLTCompare, and select coupling to damage
The numerical value of consumption is less than or equal to thresholding CLTMicrocell composition cell cluster.
Wherein it is possible to step 3) is improved, then 3 after improving) including:
A) numerical value with the coupling loss of other Microcells is respectively less than or equal to pre-determined threshold CLH's
Community is as head community；
B) coupling loss between other Microcells all of and head community is calculated, by measured value and coupling
Close loss thresholding CLTCompare, and select the numerical value of coupling loss less than or equal to thresholding CLTSmall
District, by head community and these selected Microcell composition cell clusters.
The second way: based on the return link time delay between base station
1) determine and be there is a need to carry out that combined dispatching region (or being referred to as " cell cluster ") divides is micro-
Community, all Microcells such as selected in certain area coverage divide, or by preliminary inspection
Survey and judge to there are all Microcells interfered；
2) the return link time delay between the detection of each Microcell and other Microcells, such as Microcell
A, B, C ... measuring the return link time delay obtained is LAB、LAC、LBC……；
3) by the numerical value of these return link time delays and return link time delay thresholding LTCompare, and select
The numerical value of return link time delay is less than or equal to thresholding LTMicrocell composition cell cluster.
Wherein it is possible to step 3) is improved, then 3 after improving) including:
A) numerical value with the return link time delay of other Microcells is respectively less than or equal to pre-determined threshold LH
Community as head community；
B) the return link time delay between other Microcells all of and head community is calculated, by measured value
With return link time delay thresholding LTCompare, and select the numerical value of return link time delay less than or equal to door
Limit LTMicrocell, by head community and these selected Microcells composition cell clusters.
The third mode: based on the disturbed condition between the base station that terminal measurement is arrived
1) determine and be there is a need to carry out that combined dispatching region (or being referred to as " cell cluster ") divides is micro-
Community, all Microcells such as selected in certain area coverage divide, or by preliminary inspection
Survey and judge to there are all Microcells interfered；
2) pilot signal strength about above-mentioned Microcell of terminal to report is obtained；
3) being compared with threshold T by pilot signal strength, selection intensity is more than threshold T
Base station, to form cell cluster.
It is of course also possible in step 2) in, by terminal actively leading each Microcell measured
Frequently signal strength signal intensity compares with threshold T, and only more than the base station of threshold T, intensity is reported clothes
Business base station, then adjacent base station is according to the candidate base station composition bunch of terminal to report.
It should be noted that specifically, can be used alone above-mentioned three kinds of modes and form cell cluster, also
Therefrom can be collectively forming cell cluster by optionally various ways；Wherein, when selecting various ways, small
District can be to meet any one situation therein, or needs to meet all situations.This
Outward, when selecting various ways, the built-up sequence of multiple modes is also arbitrary, such as when selecting the
When one and the second situation, i.e. can obtain one by coupling loss first by the first situation
Individual cell candidates bunch, then uses the second situation, i.e. by return link time delay to this cell candidates
Microcell in bunch is screened further；Or first use the second situation to obtain cell candidates bunch, then
By the first situation, cell candidates bunch is screened.
In step 304, the coordination of user scheduling information is carried out between the multiple Microcells in cell cluster
Time, various ways can be used, transmit such as directly through return link and/or utilize terminal to carry out
Forward.
Specifically, can be by during to return link when using the interface such as X2, S1 between Microcell
Prolong and detect, when return link time delay is less, such as less than or equal to preset threshold value time, the most directly
Connect use return link；When return link time delay is bigger, then terminal is used to forward.Certainly,
Specifically can use one or more in above various ways.
Within step 306, cell cluster needs to be sent to the federated user schedule information obtained service
Terminal, can use following any-mode:
1) the head base station in community sends federated user schedule information；
2) all base stations in community all send identical federated user scheduling at identical running time-frequency resource
Information, now terminal can obtain diversity gain.
Technical scheme is described in detail, it is contemplated that intensive Microcell scene above in association with accompanying drawing
Under, the interference in small interval may cause the control signaling comprising user scheduling information in transmitting procedure
Producing excessive error probability, therefore, the present invention proposes a kind of plot joint dispatching method and one
Plot joint dispatching system, can carry out the division of cell cluster to the Microcell of dense distribution, thus
It is scheduling between multiple Microcells that same cells bunch is interior coordinating, it is ensured that comprise user scheduling information
Control the transmission reliability of signaling.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for
For those skilled in the art, the present invention can have various modifications and variations.All essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included in the present invention
Protection domain within.
Claims (12)
1. a plot joint dispatching method, it is characterised in that including:
Step 102, selects the Microcell that at least two is associated from multiple Microcells, and by institute
State Microcell composition that at least two the is associated cell cluster for combined dispatching, described in be associated micro-
For there is more strongly disturbing Microcell in community；
Step 104, coordinates the user scheduling information that each Microcell in described cell cluster is corresponding, and
Combined coding is federated user schedule information；
Step 106, sends described federated user schedule information to the end serviced by described cell cluster
End.
Plot joint dispatching method the most according to claim 1, it is characterised in that described step
Rapid 102 include:
Each Microcell in the plurality of Microcell measures presetting between other Microcell respectively
Parameter；
Wherein, when the numerical value measuring the parameter preset obtained is less than or equal to the first threshold preset,
Microcell corresponding for this parameter preset is added to described cell cluster, and/or
The numerical value of the parameter preset between at least one Microcell and other Microcell is both less than preset
Second Threshold time, using at least one Microcell described as head community, and by described head community and
And the numerical value of the parameter preset between at least one described head community is less than or equal to described first threshold
Microcell is added to described cell cluster.
Plot joint dispatching method the most according to claim 2, it is characterised in that described pre-
Setting parameter includes:
Coupling loss and/or return link time delay.
Plot joint dispatching method the most according to any one of claim 1 to 3, its feature
Being, described step 102 includes:
Obtain the measurement report of the pilot signal strength to the plurality of Microcell of terminal to report；
Wherein, when described pilot signal strength is more than or equal to the signal strength threshold preset, should
The Microcell that pilot signal strength is corresponding is added to described cell cluster.
Plot joint dispatching method the most according to any one of claim 1 to 3, its feature
Being, described step 104 also includes:
By return link and/or the information receiving and transmitting merit of terminal between Microcell in described cell cluster
Can, it is achieved the coordination to described user scheduling information.
Plot joint dispatching method the most according to any one of claim 1 to 3, its feature
Being, described step 106 also includes:
The numerical value of the parameter preset between in described cell cluster and other Microcell is both less than specified
One or more Microcells of predetermined threshold value are as head community, and sent out by one or more described head communities
Send described federated user schedule information；
Or jointly sent described associating by all Microcells in described cell cluster at identical running time-frequency resource
User scheduling information.
7. a plot joint dispatching system, it is characterised in that including:
Grouping management unit is small for select from multiple Microcells that at least two is associated
District, and the Microcell composition described at least two being associated is used for the cell cluster of combined dispatching, described
For there is more strongly disturbing Microcell in the Microcell being associated；
Information generating unit, for coordinating the user scheduling that each Microcell in described cell cluster is corresponding
Information, and combined coding is federated user schedule information；
Information transmitting unit, for sending described federated user schedule information to being taken by described cell cluster
The terminal of business.
Plot joint dispatching system the most according to claim 7, it is characterised in that described point
Group administrative unit includes:
Parameter measurement subelement, measures respectively for each Microcell controlled in the plurality of Microcell
And the parameter preset between other Microcell；
Judgement processes subelement, for when measuring the numerical value of the parameter preset obtained less than or equal to presetting
First threshold time, corresponding for this parameter preset Microcell is added to described cell cluster, and/or
The numerical value of the parameter preset between at least one Microcell and other Microcell is both less than preset
Second Threshold time, using at least one Microcell described as head community, and by described head community and
And the numerical value of the parameter preset between at least one described head community is less than or equal to described first threshold
Microcell is added to described cell cluster.
Plot joint dispatching system the most according to claim 8, it is characterised in that described pre-
Setting parameter includes:
Coupling loss and/or return link time delay.
10. according to the plot joint dispatching system according to any one of claim 7 to 9, its feature
Being, described grouping management unit includes:
Report processes subelement, obtains the pilot signal strength to the plurality of Microcell of terminal to report
Measurement report, when described pilot signal strength more than or equal to preset signal strength threshold time, will
The Microcell that this pilot signal strength is corresponding is added to described cell cluster.
11. according to the plot joint dispatching system according to any one of claim 7 to 9, its feature
Be, described information generating unit control between the Microcell in described cell cluster by return link and
/ or the information receiving and transmitting function of terminal, it is achieved the coordination to described user scheduling information.
12. according to the plot joint dispatching system according to any one of claim 7 to 9, its feature
Being, described information transmitting unit controls one or more communities in described cell cluster and sends described
Federated user schedule information, or control all Microcells in described cell cluster at identical running time-frequency resource
The described federated user schedule information of common transmission；
Wherein, by the numerical value of the parameter preset between in described cell cluster and other Microcell both less than
One or more Microcells of the predetermined threshold value specified are as described head community.
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| WO2015024176A1 (en) * | 2013-08-20 | 2015-02-26 | 华为技术有限公司 | Resource scheduling method and apparatus |
| CN104125598B (en) * | 2014-08-07 | 2017-11-17 | 宇龙计算机通信科技(深圳)有限公司 | Communication means and communication system based on microcell base station |
| CN106576353B (en) * | 2014-08-27 | 2020-01-10 | 华为技术有限公司 | Configuration device, configuration equipment and configuration method of ABS |
| CN110012479A (en) * | 2018-01-05 | 2019-07-12 | 中国移动通信有限公司研究院 | Network element in a kind of load management method and functions of wireless |
| CN110650548B (en) * | 2019-09-20 | 2021-11-23 | 展讯通信（上海）有限公司 | Method and equipment for multi-cell data transmission |
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