Embodiment
Technical scheme provided by the present invention has finally solved descending interfere information and has obtained inadequate situation, makes that new UE assessment to descending interference when the Target cell Resources allocation is more accurate, disturbs thereby reduce, and promotes quality of service.Below in conjunction with accompanying drawing the specific embodiment of the present invention is described.
In implementation, owing to carry out resource allocation at Target cell, so this feeling the pulse with the finger-tip mark sub-district, sub-district in the application; Simultaneously, variable is a unit with the dBm actual value all in the implementation.
At first the time slot Determination of priority is described, to how determining that the sub-district of carrying out interference coordination describes, the sortord to time slot priority describes at last then.
One, to the time slot Determination of priority.
Fig. 1 is a time slot Determination of priority method implementing procedure schematic diagram, as shown in the figure, can comprise the steps:
Step 101, obtain the TCP that each disturbs each descending time slot of adjacent sub-district;
Step 102, determine time slot priority according to TCP.
In the enforcement, in step 101, determined sub-district of carrying out interference coordination in the scheme one can be adopted in the adjacent sub-district of the interference of the required TCP of obtaining, so just can utilize determined sub-district of carrying out interference coordination, determine in time slot priority according to time slot priority query traversal and trial access time institute's foundation.But, disturb adjacent sub-district for each, also can adopt other conventional meanses to determine, just adopt that aforesaid way determines carry out the sub-district of interference coordination the time, then can be because of using adjacent area that handover measurement reports, former thereby can obtain better effect to the received power difference of each adjacent area in the interference coordination alternative cell etc. according to switching UE.
In the enforcement of step 101, TCP (Transmitted carrier power, carrier transmit power) be the NodeB public measured value, measure the emission carrier power of each time slot and report with the percentage form of maximum transmission power, by certain processing method, the TCP of adjacent area between RSPA (Radio network Signalling Process Assemble, radio network signaling disposable plates) plate is obtained in the storage area of this plate neighboring BS information.When implementing, be to utilize in RNC, to have existed between different signal command boards to add in the communication mode and transmit TCP information and get final product such as a kind of simple processing method by certain processing method.
When execution in step 102, determining according to TCP in the enforcement of time slot priority that the mode below providing among the embodiment the following describes as follows:
Mode one
In the enforcement, behind the TCP measured value that obtains each each descending time slot that disturbs the adjacent area, can consider correction, therefore, further, can also comprise measured value:
TCP is handled in the following manner:
Wherein: α
iBe the path loss weighted value that obtains by the PCCPCH information calculations;
When each sub-district PCCPCH transmitting power is identical:
α
i=(PCCPCH_RSCP
i-PCCPCH_RSCP
t) (formula 1)
Or, each sub-district PCCPCH transmitting power not simultaneously:
α
i=(PCCPCH_RSCP
i-PCCPCH_Power
i)-(PCCPCH_RSCP
t-PCCPCH_Power
t) (formula 2)
The interfered cell that the representative of i subscript is current, the t subscript is represented Target cell, and unit is dB.
J, h represent h descending time slot of j carrier wave of sub-district respectively.
α
iRepresent the path loss weighting coefficient values of i interfered cell.
PCCPCH_Power represents the transmitting power of PCCPCH.
Concrete, disturb the adjacent area for each, because the TCP value is the transmitting power of NodeB side,, can set a switch control in the enforcement so can consider a path loss weight coefficient, decide whether need this weighting under the present case by it.Weighting scheme can not be enumerated one by one, and formula 1, formula 2 are two kinds of weights account forms wherein.Wherein, formula 1 thinks that all cell downlink maximum transmission power are identical, and formula 2 has considered that all cell downlink maximum transmission power may be different.
The effect of path loss weighted is to revise the potential serious interference degree of homogeneous-frequency adjacent-domain, because TCP is the transmitting power of base station, there is not the path loss influence, therefore need to revise, in order to avoid sub-district far away consistent, but may cause the situation of disturbing different influence to UE with nearer sub-district TCP.So be that example has been carried out implementation with formula 1, formula 2 among the embodiment; But, in theory, mode with other also is fine, as long as can realize revising the potential interference strength this purpose of homogeneous-frequency adjacent-domain, formula 1, formula 2 only are used to instruct those skilled in the art specifically how to implement the present invention, but do not mean and only can use formula 1, formula 2, can need come to determine the processing mode of corresponding path loss weighting in the implementation process in conjunction with practice.
So, if switch opens, then TCP value in adjacent area is done and can be treated to:
If close, then directly use current TCP value TCP '
I, j, h=TCP
I, j, hThe meaning of its value still is a percentage.
In the enforcement, behind the TCP measured value that obtains each each descending time slot that disturbs the adjacent area, can consider whether Target cell is counted interference effect, therefore, further, can also comprise:
Obtain the TCP of each descending time slot of this sub-district, and disturb the TCP of adjacent sub-district to determine time slot priority according to this sub-district and each.
In concrete the enforcement, when Target cell is counted interference effect, a switch can simply be set, whether Target cell is counted consideration in order to control, if this switch opens, then the TCP with this sub-district includes final priority consideration in, otherwise only uses the adjacent area except that Target cell to calculate.
After having determined the TCP of time slot priority, in execution in step 102, can implement as follows according to aforesaid way:
(formula 3)
Or,
(formula 4)
Wherein, j, h represent h descending time slot of j carrier wave of sub-district respectively, and N is for disturbing the adjacent area number.
The interfered cell that the representative of i subscript is current, t is a Target cell, P
J, hBe the priority of h descending time slot of j carrier wave.
For TCP
I, j, h, in the mode one,, therefore also can replace with TCP ' owing to directly use the TCP value
I, j, hAlso promptly, if switch opens, then TCP value in adjacent area is done following processing:
If close, then directly use current TCP value TCP '
I, j, h=TCP
I, j, hThe meaning of its value still is a percentage.
The reason that illustrates is, in following mode two, owing to changed computational methods, so TCP has been with subscript, to show the difference with mode one;
MaxTransPower
iBe this sub-district maximum transmission power, it is the important parameter of RNC, generally all can see this parameter by the Operation and Maintenance interface, also promptly can know this parameter by RNC.
In concrete the enforcement, when calculating time slot priority, according to the measured value that obtains and the control of two switches, can be to h the total interference value of descending time slot statistics of j carrier wave of Target cell, N is an interference adjacent area number; Using the TCP measured value like this, control through two switches, and the consideration of path loss weighting, finally obtain time slot priority, because concrete account form is a lot, as long as, can not enumerate one by one here total can count the mode of the interference value of a time slot and can adopt, in above-mentioned dual mode, formula 3 has been described a kind of priority account form of not considering Target cell TCP; 4 of formula have been described a kind of priority account form of considering Target cell TCP.
Mode two
Upgrading for each carrier wave of each sub-district under the current RNC, descending time slot TCP cycle, in order to interference coordination with reference to the time, because TCP is the NodeB public measured value, and may there be the different UE in a plurality of positions in this descending time slot, these UE are different with the position relation of current switching UE, and the interference that causes is also inequality.Therefore, further, can also implement as follows so that reach descending more accurately interference assessment.
1, obtains the user's of each carrier wave of all sub-districts, each time slot under the current RNC AOA (Angel OfArrival, arrive angle) and TCP special measurement information, in concrete the enforcement, these parameters also can obtain by being configured to NodeB periodic report or reporting events;
2, obtain the PCCPCH_RSCP information of all connection UE under the current RNC, in concrete the enforcement, these parameters also can be by being configured to UE periodic report or reporting events; Report mode to comprise:
1), disposes all UE periodic report pilot measurements.
2), introduce new event definition, when satisfying entry condition or satisfying and all trigger UE report measurement report when leaving condition.The just general measurement report that switches usefulness is reporting measurement reports when satisfying entry condition only, in order to support the measurement report that interference coordination needs, has added at the satisfied UE reporting measurement reports that also triggers when leaving condition.Whether can control by a parameters R eportOnLeave satisfying when leaving condition reporting measurement reports.Specifically can be with reference to the A3 event implementation among the TS36.331.
In the enforcement, can by the GOB directional diagram interference of each time slot be proofreaied and correct according to the user's of each carrier wave, each time slot AOA.
The meaning of proofreading and correct is that user AOA direction is tabled look-up on the GOB directional diagram, and obtains possible figuration gain on actual this direction, is used for the weighting of back to transmitting power, to embody the effect of intelligent antenna figuration.
Below the AOA according to each reporting of user is carried out angular divisions, the enforcement of calculating descending interference more accurately describes.
For every time slot list user, directly TCP is deposited in the corresponding list cell of maximum direction.
For every time slot multi-user's situation, need to calculate respectively, a comprehensive more maximum direction unit deposits in.Computational methods are as follows:
The RNC side is preserved GOB (the Grid Of Beam of the coupling antenna type of different districts, the beam scanning method) directional diagram, estimation according to AOA, in directional diagram, be maximum with the AOA direction, and with the angle of figuration direction maximum within a thresholding (for example 3dB), confirm its position in following table.For the multi-user, a plurality of users' directional diagram need be superposeed, and consideration and the angle of figuration direction maximum in a threshold range, deposit in respectively.
For aforesaid way, only preserved the angle of maximum direction and disturbed, do not think over the influence of secondary lobe, can will consider that every user side that more carefully will finish deposits in to stack, superposes at next step, to obtain better effect.Because the inaccuracy that directional diagram is estimated may more produce effect for bigger differential seat angle here.
The RNC side can one of periodic maintenance have been considered the interference reference quantity of direction, can pass through a switch here, considers to carry out the interference assessment of different accuracy.When switch cuts out, consider a kind of rough assessment, promptly, can select any spacing for angular range to a kind of periodic maintenance of choosing of each sub-district such as following table, only example is wherein a kind of below:
For certain carrier wave, be example with certain sector, per 10 degree keep a value, the time slot transmitting power behind TCP ' the expression weighted direction
TCP ' AOA angular range |
TS1 |
TS2 |
TS3 |
TS4 |
TS5 |
TS6 |
-59 to-50 |
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|
|
|
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|
-49 to-40 |
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|
|
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|
... |
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|
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|
-9 to 0 |
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|
1 to 10 |
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|
11 to 20 |
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|
|
|
|
... |
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51 to 60 |
|
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|
|
|
|
During for switch opens, according to the PCCPCH RSCP of the every user's periodic report in front, the path loss that can obtain every user is:
PathLoss=PCCPCH_Power-PCCPCH_RSCP (formula 5)
Then behind the path loss that obtains each UE, can approximate calculation go out of the interference of each descending time slot of certain carrier wave of current area,, only list two kinds here for numerous methods to other sub-district:
For K user of h descending time slot of j carrier wave, consider that it takies the influence of resource and path loss:
(formula 6)
BRU_NUM
kBe meant k BRU (Basic Resource Unit, the basic resources unit) number that the user is shared.
For K user of h descending time slot of j carrier wave, consider that it takies the influence of resource and path loss and AOA:
Formula 7
Wherein: Directional_Coeff (AOA_est
I, k) be the figuration gain that AOA finds on the GOB directional diagram.
One of RNC side periodic maintenance has been considered the interference reference quantity of direction, to a kind of periodic maintenance of choosing of each sub-district such as following table:
Time slot transmitting power behind TCP ' the expression weighted direction
TCP’ |
TS1 |
TS2 |
TS3 |
TS4 |
TS5 |
TS6 |
Carrier wave 1 |
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|
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|
Carrier wave 2 |
|
|
|
|
|
|
... |
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|
Carrier wave N |
|
|
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|
|
|
Need use the UE of new resources for current at Target cell, the interference reference information that can use first two steps to obtain at RNC disturbs to be evaded.
TCP ' is revised TCP value, and still the percentage form with maximum transmission power reports, and by certain processing method, the TCP ' of (between the RSPA plate) adjacent area between plate is obtained in the storage area of this plate neighboring BS information.
For N homogeneous-frequency adjacent-domain of all current time slots, for h descending time slot of j carrier wave of Target cell, calculate its priority, because statistical is a lot, only be wherein two kinds for example here:
When the accurate assessment switch opens,
(formula 8)
When the accurate assessment switch cuts out,
(formula 9)
By above-mentioned enforcement as can be seen.In mode one, TCP '
I, j, hAccount form is:
Perhaps TCP '
I, j, h=TCP '
I, j, h
P
J, hAccount form is:
Or,
In mode two, TCP '
I, j, account form is:
Or,
P
J, hAccount form is:
Perhaps
Wherein, mode one is a kind of simplification evaluation measures; Second mode is a kind of evaluation measures more accurately; Dual mode has all been used this statistic of TCP, and parameter alpha of mode one usefulness has characterized the weight coefficient that path loss changes; And mode two has also been selected directive gain (directional_coeff) to each UE except TCP, and accurate circuit loss value (pathloss), so more accurate than alpha.
Two, carry out the determining of sub-district of interference coordination.
When determining time slot priority, need to determine that each disturbs adjacent sub-district, disturb adjacent sub-district to describe to how to determine below.
Fig. 2 is the cell determining method implementing procedure schematic diagram that carries out interference coordination, as shown in the figure, can comprise the steps:
Step 201, obtain the measurement report that UE reports;
Step 202, obtain the pilot measurement result of cell-of-origin, Target cell and other adjacent area according to measurement report;
Step 203, determine to carry out the sub-district of interference coordination according to the pilot measurement result.
When obtaining the measurement report that UE reports, one of can be in the following manner or combination obtain measurement report:
The internal measurement report acquisition measurement report that the alien frequencies incident that the same frequency incident that reports by UE in the handoff procedure obtains measurement report, report by UE in the handoff procedure is obtained measurement report, reported by UE in the handoff procedure.
Concrete, in step 201,202 enforcement, the same frequency incident (as 1G) that can report according to UE in the handoff procedure, alien frequencies incident (as 2A), inner (additional) measurement report with frequency/alien frequencies, obtain the pilot measurement result of cell-of-origin, Target cell and other adjacent area, and will obtain the Neighboring Cell List of Target cell, can remember in the enforcement and make AdjCellList.
In the enforcement, obtaining the pilot measurement result is to do at the resource selection under the handoff scenario, so in order to simplify realization, can adopt the handover measurement reporting information to select to carry out the sub-district of interference coordination; Certainly, can allow under the RNC each NodeB and UE all measure and report, but implement more complicated like this.
In the enforcement of step 203, when determining to carry out the sub-district of interference coordination, can determine to carry out the sub-district of interference coordination by following mode according to the pilot measurement result:
PCCPCH_RSCP
TargetCell-PCCPCH_RSCP
OtherCell-i<δ (formula 10), wherein:
PCCPCH_RSCP
TargetCellBe the pilot measurement end value of Target cell,
PCCPCH_RSCP
OtherCell-iBe the pilot measurement end value of adjacent area i,
δ is Target cell and adjacent area pilot tone difference, in the enforcement, for fear of being selected in of too many more weak adjacent area, so set this thresholding.
In the formula, the PCCPCH of PCCPCH_RSCP is basic Common Control Physical Channel (PrimaryCommon Control Physical Channel), and RSCP is received signal code power (Received SignalCode Power).Select this value to use, be because this value generally can be thought " reception pilot signal strength ", be that a UE inserts the sub-district, and the important parameters of using in the switching cell judgement, be that this value must (for example-85dBm) can insert greater than a certain thresholding, this value difference of two sub-districts just can be adjudicated switching greater than some thresholdings, so this value is one of The key factor, so select it.In the enforcement, also can adopt other parameters, be to want to reach same function to get final product.
Concrete, for each adjacent area, by just judging behind the pilot measurement result who searches each sub-district among the AdjCellList.
Further, can further include in the enforcement: when in determine to carry out the sub-district of interference coordination according to the pilot measurement result, not comprising the cell-of-origin, the cell-of-origin is increased in the sub-district of carrying out interference coordination.
Concrete, all that are met formula 10 are disturbed Neighboring Cell List; If do not comprise the cell-of-origin in the tabulation, then replenish adding, and think that the pilot tone of cell-of-origin is PCCPCH_RSCP
TargetCell-th
Switch relative threshold, consider in order to increase the weighting that the cell-of-origin is disturbed.In the enforcement, do not comprise the judgement of cell-of-origin in the formula 10, but after being met all interference Neighboring Cell List of formula 10,, then replenishing adding, and think that the pilot tone of cell-of-origin is PCCPCH_RSCP if do not comprise the cell-of-origin in the tabulation
TargetCell-th
Commutation is to thresholding, consider to increase the weighting that the cell-of-origin is disturbed.Since should Target cell when switching greater than a cell-of-origin N dB, i.e. switching dependent threshold in the formula is so be weighted to Target cell pilot value-relative threshold to it.
The purpose of above-mentioned enforcement is: use the scope that the interference coordination alternative cell is determined in adjacent area that handover measurement reports; And poor according to switching UE to the received power of each adjacent area in the interference coordination alternative cell, remove the more weak adjacent area of interference, thereby avoided multiprocessing and increased error; Also the cell-of-origin is replenished at last and enter, it is more thorough to make to the consideration of disturbing.
Three, the sortord of time slot priority.
Fig. 3 as shown in the figure, can comprise the steps: for the method implementing procedure schematic diagram that the ordering by time slot priority inserts
Step 301, in current SDCA time slot priority query, shielding TCP interference value is greater than the DL time slot of thresholding;
Step 302, according to the shielding after SDCA time slot priority list insert;
Step 303, the UE of access failure is carried out reduction of speed;
If still with regard to access failure, all UL, DL time slot all according to behind the SDCA time slot queuing strategy ordering acquisition time slot priority list, are inserted behind step 304 reduction of speed.
All UL, DL time slot are meant that those time slots of deleting greater than the DL time slot of thresholding at deletion TCP interference value are at all interior time slots.
In the enforcement, when Target cell being carried out carrier wave/time slot ordering, admittance, the SDCA of Target cell (Slow Dynamic Channel Allocation, slow dynamic channel allocation) carrier frequency sort method acquiescence adopts NodeB public-measurement, DL (Down Link, down link) time slot queuing strategy acquiescence adopts the NodeB public-measurement, UL (Up Link, up link) time slot queuing strategy is not done the method that the original configuration in sub-district is still adopted in requirement here.When DL adopts TCP to measure, can be with reference to the P that obtains in the aforementioned formula
J, hEnforcement.In the enforcement, the SDCA that adopts is a kind of RRM (Radio Resource Management, RRM) algorithm, the mode of adjusting can be according to the professional different choice of fixing queuing, the BRU of fixed service (Basic Resource Unit, basic resources unit) several queueing forms such as resource selection also can control the uplink and downlink timeslot of the preferential access of each carrier frequency of every sub-district (N frequency).Then be based on the SDCA of public-measurement in the present embodiment.
In order to prevent that from both there had been the DL time slot of TCP maximum in certain carrier wave, there is the DL time slot of TCP minimum again, this carrier wave that comprehensively gets off is at last still come the situation of front.Here adopt 2 resources of taking turns to attempt:
The first round, with total time slot deletion of disturbing TCP more than or equal to thresholding (configurable under the sub-district) of DL time slot,, sort according to above-mentioned said SDCA carrier wave/time slot queuing strategy, obtain carrier wave/time slot priority list, insert.The total number of DL time slot need deduct deleted time slot during the carrier wave ordering.If access failure needs to attempt reduction of speed, if still just failure behind the reduction of speed enters next round.
Second takes turns, and all UL, DL time slot all participate in above-mentioned said SDCA carrier wave/time slot queuing strategy, sort, and obtain carrier wave/time slot priority list, insert.
Further, can also take the number of resources difference according to business, carrier wave priority and time slot priority can be considered simultaneously.
Behind the priority weighting that obtains all uplink and downlink timeslots, carrier wave priority does not re-use the average weight ordering of all time slots, but from each carrier wave, select satisfy resource requirement on/descending time slot combination, and obtain the priority weighting of this combination by the up-downgoing weighting.For example the up-downgoing demand of to be switched business is single time slot, then calculates following table according to the time slot priority factors:
Combination of resources |
Priority weighting |
Combination of resources |
Priority weighting |
Carrier wave 1 TS1/TS3 |
|
Carrier wave 2 TS1/TS3 |
|
Carrier wave 1 TS1/TS4 |
|
Carrier wave 2 TS1/TS4 |
|
Carrier wave 1 TS1/TS5 |
|
Carrier wave 2 TS1/TS5 |
|
Carrier wave 1 TS1/TS6 |
|
Carrier wave 2 TS1/TS6 |
|
Carrier wave 1 TS2/TS3 |
|
Carrier wave 2 TS2/TS3 |
|
Carrier wave 1 TS2/TS4 |
|
Carrier wave 2 TS2/TS4 |
|
Carrier wave 1 TS2/TS5 |
|
Carrier wave 2 TS2/TS5 |
|
Carrier wave 1 TS2/TS6 |
|
Carrier wave 2 TS2/TS6 |
|
...... |
...... |
...... |
...... |
Finally, the priority that all alternative resources that calculate are made up sorts, preferential time slot combination the carrying out resource allocation trial of selecting the best.
Based on same inventive concept, also provide in the embodiment of the invention and be used for the radio network controller that time slot priority is determined, the radio network controller that is used for the sortord of definite time slot priority, because these equipment principle of dealing with problems and time slot Determination of priority method, the method that inserts by the ordering of time slot priority are similar, therefore the enforcement of these equipment can repeat part and repeat no more referring to the enforcement of method.
Fig. 4 is used for radio network controller structural representation that time slot priority is determined, as shown in the figure, when the time slot priority of the sub-district of having determined to carry out interference coordination, can comprise in the radio network controller:
TCP acquisition module 401 is used to obtain the TCP of each descending time slot of the adjacent sub-district of each interference of carrying out interference coordination;
Priority determination module 402 is used for determining time slot priority according to TCP.
In the enforcement, the TCP acquisition module can also be further used for obtaining described TCP in the storage area of the neighboring BS information of local RSPA.
In the enforcement, the TCP acquisition module can also be further used for TCP is handled in the following manner:
Wherein: α
iBe the path loss weighted value that obtains by the PCCPCH information calculations;
When each sub-district PCCPCH transmitting power is identical:
α
i=(PCCPCH_RSCP
i-PCCPCH_RSCP
t)
Or, each sub-district PCCPCH transmitting power not simultaneously:
α
i=(PCCPCH_RSCP
i-PCCPCH_Power
i)-(PCCPCH_RSCP
t-PCCPCH_Power
t), wherein:
The interfered cell that the representative of i subscript is current, the t subscript is represented Target cell, and unit is dB, and j, h represent h descending time slot of j carrier wave of sub-district, α respectively
iRepresent the path loss weighting coefficient values of i interfered cell, PCCPCH_RSCP is the pilot measurement end value, and PCCPCH_Power represents the transmitting power of PCCPCH.
In the enforcement, the priority determination module can also be further used for determining by following formula when determining time slot priority according to TCP:
Wherein:
J, h represent h descending time slot of j carrier wave of sub-district respectively, and N is for disturbing the adjacent area number, and the i subscript is represented current interfered cell, and MaxTransPoweri is this sub-district maximum transmission power, P
J, hBe the priority of h descending time slot of j carrier wave.
In the enforcement, the TCP acquisition module can also be further used for obtaining the TCP of each descending time slot of this sub-district;
The priority determination module can also be further used for disturbing the TCP of adjacent sub-district to determine time slot priority according to this sub-district and each.
In the enforcement, the priority determination module can also be further used for when determining time slot priority according to TCP, presses following formula and handles:
, wherein:
J, h represent h descending time slot of j carrier wave of sub-district respectively, and N is for disturbing the adjacent area number, and the i subscript is represented current interfered cell, and t is a Target cell, MaxTransPower
iBe this sub-district maximum transmission power, P
J, hBe the priority of h descending time slot of j carrier wave.
In the enforcement, the TCP acquisition module can also be further used for obtaining the PCCPCH_RSCP information of all connection UE under the current RNC; And obtain the path loss of each UE by following formula:
PathLoss=PCCPCH_Power-PCCPCH_RSCP, wherein,
PathLoss is the path loss of UE, and PCCPCH_Power is the PCCPCH transmitting power of UE, and PPCCPCH_RSCP is the pilot measurement end value of UE.
In the enforcement, the TCP acquisition module can also be further used for K user's of h descending time slot of j carrier wave TCP is handled in the following manner:
Wherein:
BRU_NUM
kBe meant k the BRU of the basic resources unit that the user is shared number.
In the enforcement, the priority determination module can also be further used for when determining time slot priority according to TCP, presses following formula and handles:
For N homogeneous-frequency adjacent-domain of all current time slots, for h descending time slot of j carrier wave of Target cell,
Consider the AOA factor, can further include in the radio network controller:
AOA acquisition module 403 is used to obtain the AOA of the user of each carrier wave of all sub-districts, each time slot under the current RNC.
In the enforcement, the TCP acquisition module can also be further used for the AOA according to the user of each carrier wave, each time slot, by the GOB directional diagram interference of each time slot is proofreaied and correct.
In the enforcement, the TCP acquisition module can also be further used for K user's of h descending time slot of j carrier wave TCP is handled in the following manner:
Wherein: Directional_Coeff (AOA_est
I, k) be the figuration gain that AOA finds on the GOB directional diagram.
In the enforcement, the priority determination module can also be further used for when determining time slot priority according to TCP, presses following formula and handles:
For N homogeneous-frequency adjacent-domain of all current time slots, for h descending time slot of j carrier wave of Target cell,
In the enforcement, can further include in the radio network controller:
Measurement report module 404 is used to obtain the measurement report that UE reports;
Measurement result module 405 is used for the pilot measurement result according to measurement report acquisition cell-of-origin, Target cell and other adjacent area;
Interfered cell determination module 406 is used for determining to carry out according to the pilot measurement result sub-district of interference coordination.
In the enforcement, the measurement result module can also be further used for when obtaining the measurement report that UE reports, one of in the following manner or combination obtain measurement report:
The internal measurement report acquisition measurement report that the alien frequencies incident that the same frequency incident that reports by UE in the handoff procedure obtains measurement report, report by UE in the handoff procedure is obtained measurement report, reported by UE in the handoff procedure.
In the enforcement, the interfered cell determination module can also be further used for determining to carry out the sub-district of interference coordination by following mode when determining to carry out the sub-district of interference coordination according to the pilot measurement result:
PCCPCH_RSCP
TargetCell-PCCPCH_RSCP
OtherCell-i<δ, wherein:
PCCPCH_RSCP
TargetCellBe the pilot measurement end value of Target cell,
PCCPCH_RSCP
OtherCell-iBe the pilot measurement end value of adjacent area i,
δ is Target cell and adjacent area pilot tone difference.
In the enforcement, when the interfered cell determination module can also be further used for not comprising the cell-of-origin in determine to carry out the sub-district of interference coordination according to the pilot measurement result, the cell-of-origin is increased in the sub-district of carrying out interference coordination.
In the enforcement, the interfered cell determination module can also be further used for pilot tone with the cell-of-origin by PCCPCH_RSCP
TargetCell-th
Switch relative thresholdHandle.
Fig. 5 is the radio network controller structural representation that is used for the sortord of definite time slot priority, as shown in the figure, after definite time slot priority, can comprise in the radio network controller:
Shroud module 501 is used in current SDCA time slot priority query, and shielding TCP interference value is greater than the DL time slot of thresholding;
First access module 502 is used for inserting according to the SDCA time slot priority list after the shielding;
Reduction of speed module 503 is used for the UE of access failure is carried out reduction of speed;
Second access module 504, if be used for behind the reduction of speed still with regard to access failure, all UL, DL time slot are all obtained the time slot priority list according to the ordering of SDCA time slot queuing strategy after, insert.
In the enforcement, first access module can also be further used for taking the number of resources difference according to business, according to carrier wave priority and time slot prioritization.
For the convenience of describing, the each several part of the above device is divided into various modules with function or the unit is described respectively.Certainly, when enforcement is of the present invention, can in same or a plurality of softwares or hardware, realize the function of each module or unit.
From the foregoing description as seen, in the technical scheme that the embodiment of the invention provides:
By using the public-measurement amount of UTRAN side, obtain the co-channel interference reference of Target cell.
By using the special measurement of UE, obtain the interference coordination neighboring BS information of current UE.
By basis, adjacent area pilot tone difference thresholding, control the adjacent area and participate in the interference coordination algorithm.
Revise the potential interference strength in adjacent area by any path loss weighting scheme.
Further consider the special processing of cell-of-origin weighted value.
Adopt the selection of two-wheeled carrier wave, time slot etc.
The technical scheme that the embodiment of the invention provides can be so that can select the littler resource of descending interference to use at Target cell UE to be accessed, thereby avoided being subjected to strong jamming or produced strong jamming, promoted the customer service quality.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware embodiment, complete software implementation example or in conjunction with the form of the embodiment of software and hardware aspect.And the present invention can adopt the form that goes up the computer program of implementing in one or more computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.
The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out by the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device, make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of carrying out on computer or other programmable devices is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic creative notion of cicada, then can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.