CN103079210A - Methods, evolved Node B and system for coordinating downlink interference between cells - Google Patents
Methods, evolved Node B and system for coordinating downlink interference between cells Download PDFInfo
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Abstract
The invention discloses methods, an evolved Node B and a system for coordinating downlink interference between cells. One of the methods comprises the following steps that the evolved Node B acquires the relative narrowband Tx power (RNTP) indication information of adjacent evolved Node Bs, and if the Tx power of N evolved Node Bs on the same resource block exceeds a preset threshold, N-1 evolved Node Bs in the N evolved Node Bs perform scheduled resource regulation on corresponding scheduling users on the resource block, wherein N is more than or equal to 2. According to the technical scheme, the interference can be coordinated more accurately, the interface between the cells can be reduced, and the system resource efficiency can be improved.
Description
Technical field
The present invention relates to the communications field, particularly, relate to disturbance coordination method, base station and system.
Background technology
In the wireless communication system, the base station communicates by uplink downlink and terminal, and wherein, down link refers to that the base station arrives the direction of terminal, is also referred to as forward link; Up link refers to the direction of terminal to base station, is also referred to as reverse link.A plurality of terminals can be simultaneously by down link from the base station receive data, also can send data by up link to the base station simultaneously.
OFDM (Orthogonal Frequency Division Multiplexing, abbreviation OFDM) in the system, when base station and a plurality of terminal are carried out transfer of data by down link in the residential quarter, these down links are orthogonal, can avoid disturbing in the residential quarter, and the down link of terminal is not quadrature in the different districts, so, terminal just may be subject to the dl interference of other neighbor cell base station, i.e. the descending interference in minizone.If the descending serious interference in minizone will cause power system capacity to reduce, the transmission capacity of Cell Edge User reduces, and affects the covering performance of system.
The Inter-Cell Interference Coordination technology is carried out coordinated allocation or scheduling by the resource to adjacent a plurality of residential quarters, can avoid distributing identical resource to the edge customer of neighbor cell, and to user terminal (User Equipment, abbreviation UE) transmitting power is controlled, thereby can be effectively reduced the descending interference in minizone.
In order to implement Inter-Cell Interference Coordination, need more mutual schedule informations between the base station.At present, in 3GPP E-UTRAN technical specification, defined neighbor cell base station (evolved Node B, abbreviation eNB) mode of mutual Relative Narrowband TX Power (Relative Narrowband Tx Power is referred to as RNTP) indication realizes the Inter-Cell Interference Coordination technology between.In this technical specification, at first cell available resources is divided into N Resource Block (Resource Block is called for short RB), index is RB 0, RB 1 ..., RB N-1; Then generate RNTP indication bitmap for the RB index, each bit wherein can value " 0 " or " 1 ", and, the transmitting power of " 0 " expression cell base station on this RB do not have to surpass the threshold value that sets in advance, and the transmitting power of " 1 " expression cell base station on this RB surpasses the threshold value that sets in advance; Cell base station sends to neighbor cell base station to the RNTP indication that generates again, and RNTP indication form and mutual schematic diagram are as shown in Figure 1; Last cell base station can know that according to the RNTP indication of receiving the transmitting power of neighbor cell base station on which RB is high, for fear of on these RB neighbor cell base station being produced interference, this cell base station can adopt lower transmitting power or not carry out user's scheduling at these RB.
Above-mentioned interference coordination schemes can reduce or avoid the descending interference between neighbor cell to a certain extent, but has some problems.A problem is, if two neighbor cell base station send to the other side's RNTP indication and are " 1 " in position corresponding to certain RB, so according to such scheme, two base stations all can respond the RNTP indication " 1 " that the other side sends, carry out transmitting power adjustment or the adjustment of user's scheduling resource for this RB, thereby can reduce system resource efficient.Another problem is, the base station receives that the RNTP indication that certain neighbor cell base station sends is " 1 " in position corresponding to certain RB, if strong jamming can't be caused to this adjacent base station dispatched users in this base station on this RB, just there is no need to respond the RNTP indication " 1 " that this adjacent base station sends, and such scheme is not considered this point, may cause the system resource Efficiency Decreasing.
Summary of the invention
The present invention proposes a kind of minizone downlink interference collaboration method, base station and system, to realize more accurately interference coordination, reduces presence of intercell interference, improves system resource efficient.
The invention provides the coordination approach of the descending interference in a kind of minizone, comprising:
The base station obtains the RNTP indication information of adjacent base station, if there be N the transmitting power of base station on same Resource Block to surpass default thresholding, then the scheduling resource adjustment is carried out to the corresponding dispatched users on this Resource Block in wherein N-1 base station;
Described N 〉=2.
Further, described N-1 base station of dispatched users being carried out the scheduling resource adjustment is individual for the N-1 that priority is lower on same Resource Block.
Further, described method is specially:
If the transmitting power of base station on a Resource Block surpasses default thresholding, then described base station judges whether the RNTP indication of receiving from each neighbor cell base station also exists transmitting power to surpass default thresholding at described correspondence position, surpass in the adjacent base station of default thresholding whether comprise the base station that priority is higher than described base station if then further judge transmitting power, if comprise then described base station to its dispatched users operation dispatching resource adjusting operation on described Resource Block.
Further, described method also comprises:
If each adjacent base station of RNTP indication judgement that receive from each neighbor cell base station described base station all surpasses default thresholding in the transmitting power of described Resource Block correspondence position, then described base station arranges transmitting power raising sign to its dispatched users on described Resource Block.
The present invention also provides the coordination approach of the descending interference in a kind of minizone, comprising:
The base station obtains the RNTP indication information of adjacent base station, if a base station is not to have the transmitting power of adjacent base station on this Resource Block to surpass default thresholding on the Resource Block of limit priority, when any situation below the appearance, described base station is adjusted its dispatched users:
(1) residential quarter, place, described base station is the strong interferers residential quarter of the dispatched users of described adjacent base station;
(2) transmitting power of described base station on described Resource Block surpasses default thresholding.
Further, described method is specially:
When described situation (1) occurring, if the transmitting power of described base station on described Resource Block do not surpass default thresholding, described base station refers to its dispatched users adjustment: described base station arranges transmitting power to its corresponding dispatched users and reduces sign.
Further, described method is specially:
When described situation (1) occurring, if the transmitting power of described base station on described Resource Block also surpasses default thresholding, described base station refers to its dispatched users adjustment: the scheduling resource adjustment is carried out to its corresponding dispatched users in described base station.
Further, described method also comprises:
Described base station obtains the RNTP indication information of adjacent base station, if the transmitting power of adjacent base station does not all surpass the budget thresholding on a Resource Block, and the transmitting power of described base station surpasses default thresholding, and then described base station arranges transmitting power raising sign to its corresponding dispatched users.
The present invention also provides the coordination base station of the descending interference in a kind of minizone:
Described base station comprises acquisition of information module, judge module and adjusting module;
Described acquisition of information module is for the RNTP indication information that obtains neighbor cell;
Described judge module, be used for when the transmitting power of base station on a Resource Block surpasses default thresholding, judge the base station that whether exists on described Resource Block transmitting power to surpass default thresholding in the adjacent base station, judge further that then transmitting power surpasses in the adjacent base station of presetting thresholding whether comprise the base station that priority is higher than described base station, then indicates described adjusting module to the dispatched users operation dispatching resource adjustment of described base station on described Resource Block if comprise if exist;
Described adjusting module is used for according to indication the dispatched users operation dispatching resource adjusting operation on the described Resource Block.
Further, described judge module also is used for surpassing default thresholding when the transmitting power of base station on a Resource Block, and when the transmitting power of each adjacent base station on described Resource Block all do not surpass default thresholding, the indication adjusting module arranged transmitting power to the dispatched users on the described Resource Block and improves sign;
Described adjusting module also is used for according to described indication the dispatched users on the described Resource Block being arranged transmitting power and improves sign.
The present invention also provides the coherent system of the descending interference in a kind of minizone;
Described system comprises selects module and adjusting module;
Described selection module is used for selecting N-1 base station wherein that the corresponding dispatched users on the described Resource Block is carried out the scheduling resource adjustment when occurring N the transmitting power of base station on same Resource Block above default thresholding; Described N 〉=2;
Described adjusting module carries out the scheduling resource adjustment to the corresponding dispatched users on the described Resource Block after being used for receiving described indication;
Described adjusting module is positioned at each base station.
Further, described selection module is selected N-1 lower base station of priority from described Resource Block.
The present invention also provides the coordination base station of the descending interference in a kind of minizone;
Described base station comprises acquisition of information module, judge module and adjusting module;
Described acquisition of information module is for the RNTP indication information that obtains neighbor cell;
Described judge module, be used for when described base station be not when having the transmitting power of adjacent base station on this Resource Block to surpass on the Resource Block of limit priority to preset thresholding, judge whether to exist following situation:
(1) residential quarter, place, described base station is the strong interferers residential quarter of the dispatched users of described adjacent base station;
(2) transmitting power of described base station on described Resource Block surpasses default thresholding;
If judge to have above any situation, then indicate adjusting module that the dispatched users of described base station on described Resource Block adjusted;
Described adjusting module is used for according to indication the dispatched users on the described Resource Block being adjusted.
Further, when described situation (1) occurring, described judge module judges further whether the transmitting power of described base station on described Resource Block surpasses default thresholding, if do not surpass, described being designated as arranges transmitting power reduction sign to corresponding dispatched users;
Described adjusting module arranges transmitting power reduction sign to corresponding dispatched users after receiving described indication.
Further, when described situation (1) occurring, described judge module judges further whether the transmitting power of described base station on described Resource Block surpasses default thresholding, if surpass, described being designated as arranges transmitting power reduction sign to corresponding dispatched users;
Described adjusting module receives that described indication arranges transmitting power to corresponding dispatched users and reduces sign.
Further, described judge module also is used for when the transmitting power of adjacent base station on the Resource Block does not all surpass the budget thresholding, whether the transmitting power of judging described base station surpasses default thresholding, then indicates adjusting module that corresponding dispatched users is arranged transmitting power raising sign as surpassing;
Described adjusting module arranges transmitting power raising sign to corresponding dispatched users after receiving described indication.
Two problems that the present invention is directed to above-mentioned interference coordination schemes and existence thereof propose a kind of minizone downlink interference collaboration method, can carry out more accurately interference coordination, reach the effect that reduces presence of intercell interference and improve system resource efficient.
Description of drawings
Fig. 1 is RNTP indication form and mutual schematic diagram.
Fig. 2 is minizone of the present invention downlink interference collaboration method flow chart.
Fig. 3 is application example one of the present invention, application example two and application example three cell base station interference coordination schematic diagrames.
Embodiment
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearer, clear, hereinafter further describe the present invention in connection with drawings and Examples.Need to prove, in the situation that do not conflict, embodiment and the feature among the embodiment among the present invention can make up mutually, and embodiment described in the present invention only is used for explaining the present invention, is not intended to limit the present invention.
In order to reduce the descending interference in minizone, can adopt the Inter-Cell Interference Coordination technology, coordinate neighbor cell user's scheduling resource, the transmitting power of control terminal reduces presence of intercell interference intensity, improves system resource efficient.
The present invention proposes a kind of minizone downlink interference collaboration method, its flow chart specifically may further comprise the steps as shown in Figure 2:
Step F 201 is base station configuration interference coordination cycle and resource prioritization according to configuration rule.
Step F 202, base station judge whether the interference coordination cycle arrive, if do not arrive, and execution in step F205 then, otherwise, if arrive, execution in step F203 then.
Step F 203, base station are obtained the RNTP indication information that neighbor cell base station sends, and perhaps, the base station obtains the RNTP indication information of neighbor cell base station transmission and the strong interferers cell information of neighbor cell base station dispatched users.
Step F 204, base station are carried out the interference coordination operation based on resource prioritization, perhaps, the interference coordination operation based on resource prioritization and strong interferers residential quarter is carried out in the base station, dispatched users to the residential quarter is adjusted, and comprises adjusting scheduling resource and/or transmitting power, preserves the interference coordination result.
Step F 205, base station are carried out user's scheduling and transfer of data.
Further, the interference coordination cycle is less than the base station scheduling cycle, can adopt default configuration or configured by systematic unity.
Further, resource prioritization is included as the different priority of same asset configuration of neighbor cell, can adopt default configuration or is configured by systematic unity.
By above-mentioned inter-cell interference coordination method, can solve the interference coordination that exists in the correlation technique inaccurate and cause the lower problem of system resource efficient, described method can be carried out more accurately interference coordination operation, and then has reached the effect that reduces presence of intercell interference and improve system resource efficient.
Embodiment one
The present embodiment provides a kind of minizone downlink interference collaboration method, comprise: the base station obtains the RNTP indication information of adjacent base station, if there be N the transmitting power of base station on same Resource Block to surpass default thresholding, then the scheduling resource adjustment is carried out to the corresponding dispatched users on this Resource Block in wherein N-1 base station; Wherein, N 〉=2.
Further, N-1 base station of dispatched users being carried out the scheduling resource adjustment is individual for the N-1 that priority is lower on same Resource Block.
Further, if the transmitting power of base station on a Resource Block surpasses default thresholding (being that the RNTP indication that the base station sends to neighbor cell base station is " 1 " at this resource correspondence position), then the base station judges whether the RNTP indication of receiving from each neighbor cell base station also exists transmitting power to surpass default thresholding (namely being designated as " 1 ") at correspondence position, surpass in the adjacent base station of default thresholding whether comprise the base station that priority is higher than described base station if then further judge transmitting power, if comprise then described base station to its dispatched users operation dispatching resource adjusting operation on this Resource Block.
Further, said method also comprises: judge that each adjacent base station all surpasses default thresholding (namely being 0 in the correspondence position indication) in the transmitting power of described Resource Block correspondence position if the RNTP that receive from each neighbor cell base station the base station indicates, then the base station arranges transmitting power raising sign to its dispatched users on described Resource Block.
Further, the base station specifically comprises dispatched users operation dispatching resource adjusting operation:
Step 101: described base station judges whether to exist the resource collection that meets the following conditions: the RNTP indication correspondence position that free time and neighbor cell base station send in the residential quarter is the resource of " 0 ", and dispatched users to be adjusted RNTP when these resource scheduling is designated as the resource collection of " 0 ";
If there is such resource collection, then described base station obtains in this resource collection the resource of dispatched users best performance to be adjusted, and this resource is distributed to dispatched users to be adjusted, discharges simultaneously the original scheduling resource of dispatched users to be adjusted; The adjustment of user's scheduling resource finishes.If there is not such resource collection, then execution in step 102.
Step 102: described base station judges whether to exist the resource collection that meets the following conditions: free time and resource prioritization are higher than the resource of each neighbor cell base station in the residential quarter;
Then obtain in these resources the resource of dispatched users best performance to be adjusted if exist, this resource is distributed to dispatched users to be adjusted, to discharge simultaneously the original scheduling resource of dispatched users to be adjusted; Then, described base station judges that the RNTP of dispatched users to be adjusted on the scheduling resource after the adjustment indicates whether to be " 1 ", if be " 1 ", then described base station arranges transmitting power raising sign to dispatched users to be adjusted; The adjustment of user's scheduling resource finishes.If there is not then execution in step 103.
Step 103: whether described base station is judged to exist in the scheduling resource of other dispatched users in the residential quarter makes dispatched users to be adjusted RNTP when these resources scheduling be designated as the resource of " 0 " and corresponding dispatched users set thereof;
If the set of described dispatched users exists, then described base station obtains dispatched users and the corresponding resource collection thereof that dispatched users RNTP when the original scheduling resource scheduling of dispatched users to be adjusted in this dispatched users set is designated as " 0 "; If described resource collection exists, then described base station obtains in this resource collection the resource of dispatched users best performance to be adjusted and the dispatched users of correspondence thereof, exchange the scheduling resource of this dispatched users and dispatched users to be adjusted, and reduce sign for this dispatched users arranges transmitting power; The adjustment of user's scheduling resource finishes.
If there are not then execution in step 104 in described dispatched users set or described resource collection.
Step 104: described base station is judged that intra-cell resource priority is higher than and whether is had in the dispatched users on the resource of each neighbor cell base station that RNTP is designated as the dispatched users of " 0 " and corresponding scheduling resource set thereof when the original scheduling resource scheduling of dispatched users to be adjusted;
If exist, then described base station obtains in this resource collection the resource of dispatched users best performance to be adjusted and the dispatched users of correspondence thereof, exchange the scheduling resource of this dispatched users and dispatched users to be adjusted, and for arranging transmitting power, this dispatched users reduces sign, then, described base station judges that the RNTP of dispatched users to be adjusted on the scheduling resource after the adjustment indicates whether to be " 1 ", if be " 1 ", then described base station is that dispatched users to be adjusted arranges transmitting power raising sign; The adjustment of user's scheduling resource finishes.If there is not then execution in step 105.
Step 105: described base station judges whether other dispatched users in the residential quarter exist when the original scheduling resource scheduling of dispatched users to be adjusted RNTP to be designated as the dispatched users of " 0 ";
If exist base station then to obtain the dispatched users of these dispatched users best performance when the original scheduling resource scheduling of dispatched users to be adjusted, the original scheduling resource of dispatched users to be adjusted is distributed to this dispatched users, and reduce sign for this dispatched users arranges transmitting power; The adjustment of user's scheduling resource finishes.If there is not then execution in step 106.
Step 106: described base station arranges transmitting power to dispatched users to be adjusted and reduces sign; The adjustment of user's scheduling resource finishes.
Embodiment two
The present embodiment provides the coordination approach of the descending interference in a kind of minizone, comprising:
The base station obtains the RNTP indication information of adjacent base station, if a base station is not to have the transmitting power of adjacent base station on this Resource Block to surpass default thresholding on the Resource Block of limit priority, when any situation below the appearance, described base station is adjusted its dispatched users:
(1) residential quarter, place, described base station is the strong interferers residential quarter of the dispatched users of described adjacent base station;
(2) transmitting power of described base station on described Resource Block surpasses default thresholding.
Further, said method is specially: when described situation (1) occurring, if the transmitting power of described base station on described Resource Block also surpasses default thresholding, described base station refers to its dispatched users adjustment: the scheduling resource adjustment is carried out to its corresponding dispatched users in described base station.
When described situation (1) occurring, if the transmitting power of described base station on described Resource Block do not surpass default thresholding, described base station refers to its dispatched users adjustment: described base station arranges transmitting power to its corresponding dispatched users and reduces sign.
Further, said method also comprises: the base station obtains the RNTP indication information of adjacent base station, if the transmitting power of adjacent base station does not all surpass the budget thresholding on a Resource Block, and the transmitting power of described base station surpasses default thresholding, and then described base station arranges transmitting power raising sign to its corresponding dispatched users.
Further, in the described interference coordination operation based on resource prioritization and strong interferers residential quarter, described base station comprises the concrete steps of dispatched users operation dispatching resource adjusting operation:
Step 201: described base station judges whether to exist the resource collection that meets the following conditions: the RNTP indication correspondence position that free time and neighbor cell base station send in the residential quarter is the resource of " 0 ", and dispatched users to be adjusted RNTP when these resource scheduling is designated as the resource collection of " 0 ";
If exist, then described base station obtains in this resource collection the resource of dispatched users best performance to be adjusted, and this resource is distributed to dispatched users to be adjusted, discharges simultaneously the original scheduling resource of dispatched users to be adjusted; The adjustment of user's scheduling resource finishes.If there is not then execution in step 202.
Step 202: described base station judges whether to exist free time in the residential quarter and resource prioritization to be higher than the resource of each neighbor cell base station;
If exist then the base station to obtain in these resources the resource of dispatched users best performance to be adjusted, this resource is distributed to dispatched users to be adjusted, discharge simultaneously the original scheduling resource of dispatched users to be adjusted; Then, described base station judges that the RNTP of dispatched users to be adjusted on the scheduling resource after the adjustment indicates whether to be " 1 ", if be " 1 ", then described base station arranges transmitting power raising sign to dispatched users to be adjusted; The adjustment of user's scheduling resource finishes.If there is not then execution in step 203.
Step 203: described base station obtains the scheduling resource of other dispatched users in the residential quarter, and judges whether to exist dispatched users to be adjusted RNTP when these resource scheduling to be designated as the resource of " 0 " and corresponding dispatched users set thereof;
If the set of described dispatched users exists, then described base station obtains dispatched users and the corresponding resource collection thereof that dispatched users RNTP when the original scheduling resource scheduling of dispatched users to be adjusted in this dispatched users set is designated as " 0 "; If described resource collection exists, then described base station obtains in this resource collection the resource of dispatched users best performance to be adjusted and the dispatched users of correspondence thereof, exchange the scheduling resource of this dispatched users and dispatched users to be adjusted, and for arranging transmitting power, this dispatched users reduces sign, then, described base station obtains the neighbor cell base station that the priority of each neighbor cell base station on the resource after the dispatched users adjustment to be adjusted is higher than described base station, and the resource correspondence position of RNTP indication after dispatched users to be adjusted is adjusted that obtains these neighbor cell base station transmissions is neighbor cell base station and corresponding dispatched users and the strong interferers residential quarter of " 1 ", then judge whether these strong interferers residential quarters comprise residential quarter, place, described base station, if comprise, then described base station arranges transmitting power reduction sign to dispatched users to be adjusted; The adjustment of user's scheduling resource finishes.
If there are not then execution in step 204 in described dispatched users set or described resource collection.
Step 204: described base station judges that intra-cell resource priority is higher than in the dispatched users on the resource of each neighbor cell base station, whether has that RNTP is designated as the dispatched users of " 0 " and corresponding scheduling resource set thereof when the original scheduling resource scheduling of dispatched users to be adjusted;
If existing then, described base station obtains in this resource collection the resource of dispatched users best performance to be adjusted and the dispatched users of correspondence thereof, exchange the scheduling resource of this dispatched users and dispatched users to be adjusted, and for arranging transmitting power, this dispatched users reduces sign, then, described base station judges that the RNTP of dispatched users to be adjusted on the scheduling resource after the adjustment indicates whether to be " 1 ", if be " 1 ", then described base station is that dispatched users to be adjusted arranges transmitting power raising sign; The adjustment of user's scheduling resource finishes.If there is not then execution in step 205.
Step 205: described base station judges whether to exist the RNTP when the original scheduling resource scheduling of dispatched users to be adjusted of other dispatched users in the residential quarter to be designated as the dispatched users of " 0 ";
If exist, then described base station obtains the dispatched users of these dispatched users best performance when the original scheduling resource scheduling of dispatched users to be adjusted, the original scheduling resource of dispatched users to be adjusted is distributed to this dispatched users, and reduce sign for this dispatched users arranges transmitting power; The adjustment of user's scheduling resource finishes.If there is not then execution in step 206.
Step 206: described base station arranges transmitting power to dispatched users to be adjusted and reduces sign; The adjustment of user's scheduling resource finishes.
Further, user's transmitting power is adjusted in described base station according to power adjustment sign, preserve the interference coordination result.
Further, the judgment criterion of described best performance comprises: SINR (the Signal to Interference and Noise Ratio) maximum of dispatched users on scheduling resource, perhaps, SNR (the Signal to Noise Ratio) maximum of dispatched users on scheduling resource, perhaps, SIR (the Signal to Interference Ratio) maximum of dispatched users on scheduling resource, perhaps, MCS (the Modulation and Coding Scheme) grade of dispatched users on scheduling resource is maximum.
Further, described power adjustment sign comprises that transmitting power reduces sign, transmitting power improves sign; Optionally, described power adjustment sign also comprises the constant sign of transmitting power.
Further, described interference coordination result comprises user's scheduling resource and user emission power.
Further, user's scheduling and transfer of data are carried out according to described interference coordination result in described base station.
Three advantageous applications examples below are provided, have been used for disturbance coordination method of the present invention is carried out specific description.
Application example one
As shown in Figure 3, base station eNB 1-eNB7 is seven neighbor cell base station, and three residential quarters are arranged under each eNB, and all there are 6 scheduling resource RB pieces each residential quarter: RB0, RB1, RB2, RB3, RB4, RB5; Be three cell configuration resource prioritizations, corresponding with RB, three residential quarters under the eNB1 are as example: Cell 1:[3,3,2,2,1,1], Cell 2:[1,1,3,3,2,2], Cell 3:[2,2,1,1,3,3].
In this application example, take Cell 2 as example, the neighbor cell of Cell 2 comprises Cell 1, Cell 3, Cell 4, Cell 9, Cell 7 and Cell 12, suppose that current time is interference coordination cycle due in, the RNTP indication information that Cell 2 sends according to resource prioritization configuration information and the neighbor cell base station that gets access to, execution comprises based on the interference coordination operation of resource prioritization:
Resource RB0 for Cell 2, suppose that the RNTP indication that Cell 2 sends to neighbor cell is " 1 " at the RB0 correspondence position, and the RNTP indication that Cell 2 receives from neighbor cell is not " 0 " entirely at the RB0 correspondence position, then to obtain the neighbor cell that the priority on this resource in the neighbor cell is higher than Cell 2 be Cell 1 to Cell 2, Cell 3, Cell 4, Cell 9, Cell 7 and Cell 12, and judge that there is " 1 " in the RNTP indication of receiving from the high neighbor cell of these priority at the RB0 correspondence position, then Cell 2 is to the dispatched users operation dispatching resource adjusting operation on its RB0.
Resource RB2 for Cell 2, suppose that the RNTP indication that Cell 2 sends to neighbor cell is " 1 " at the RB2 correspondence position, and the RNTP indication that Cell 2 receives from neighbor cell is " 0 " at the RB2 correspondence position, and then Cell 2 arranges transmitting power raising sign to the dispatched users on its RB2.
Resource RB4 for Cell 2, suppose that the RNTP indication that Cell 2 sends to neighbor cell is " 1 " at the RB4 correspondence position, and the RNTP indication that Cell 2 receives from neighbor cell is not " 0 " entirely at the RB4 correspondence position, then to obtain the neighbor cell that the priority on this resource in the neighbor cell is higher than Cell 2 be Cell 3, Cell 9 and Cell 12 to Cell 2, and suppose that there is " 1 " in the RNTP indication that Cell 2 receives from the high neighbor cell of these priority at the RB4 correspondence position, then Cell 2 is to the dispatched users operation dispatching resource adjusting operation on its RB4.
Wherein, Cell 2 comprises the dispatched users operation dispatching resource adjusting operation on its RB0 (or RB4):
Step S101:Cell 2 obtains the resource that RNTP indication correspondence position that free time in the residential quarter and neighbor cell send is " 0 ", and obtain the resource collection that dispatched users to be adjusted RNTP when the scheduling of these resources is designated as " 0 ", if this resource collection is not empty set, then Cell 2 obtains in this resource collection the resource to dispatched users best performance to be adjusted, this resource is distributed to dispatched users to be adjusted, discharge simultaneously the original scheduling resource RB0 of dispatched users to be adjusted (or RB4); The adjustment of user's scheduling resource finishes.If above-mentioned resource collection is then execution in step S102 of empty set.
Step S102:Cell 2 judges whether to exist free time in the residential quarter and resource prioritization to be higher than the resource of each neighbor cell, if there is the resource then obtain in these resources dispatched users best performance to be adjusted, this resource is distributed to dispatched users to be adjusted, discharge simultaneously the original scheduling resource RB0 of dispatched users to be adjusted (or RB4); Then, Cell 2 judges that the RNTP of dispatched users to be adjusted on the scheduling resource after the adjustment indicates whether to be " 1 ", if be " 1 ", then 2 pairs of dispatched users to be adjusted of Cell arrange transmitting power raising sign; The adjustment of user's scheduling resource finishes.If there is not then execution in step S103.
Step S103:Cell 2 judges the scheduling resource of other dispatched users in the residential quarter, and judges whether to exist dispatched users to be adjusted RNTP when these resource scheduling to be designated as the resource of " 0 " and corresponding dispatched users set thereof;
If the set of this dispatched users exists, then Cell 2 obtains the resource collection that dispatched users RNTP when the original scheduling resource RB0 of dispatched users to be adjusted (or RB4) dispatches in this dispatched users set is designated as dispatched users and the correspondence thereof of " 0 "; If this resource collection exists, then Cell 2 obtains in this resource collection the resource of dispatched users best performance to be adjusted and the dispatched users of correspondence thereof, exchange the scheduling resource of this dispatched users and dispatched users to be adjusted, and reduce sign for this dispatched users arranges transmitting power; The adjustment of user's scheduling resource finishes.
If there are not then execution in step S104 in above-mentioned dispatched users set or resource collection.
Step S104:Cell 2 judges whether to exist the dispatched users that meets the following conditions and corresponding scheduling resource set thereof: intra-cell resource priority is higher than in the dispatched users on the resource of each neighbor cell when the original scheduling resource RB0 of dispatched users to be adjusted (or RB4) dispatch that RNTP is designated as the dispatched users of " 0 " and the scheduling resource of correspondence is gathered;
If existing then, Cell 2 obtains in this resource collection the resource of dispatched users best performance to be adjusted and the dispatched users of correspondence thereof, exchange the scheduling resource of this dispatched users and dispatched users to be adjusted, and for arranging transmitting power, this dispatched users reduces sign, then, Cell 2 judges that the RNTP of dispatched users to be adjusted on the scheduling resource after the adjustment indicates whether to be " 1 ", if be " 1 ", then Cell 2 improves sign for dispatched users to be adjusted arranges transmitting power; The adjustment of user's scheduling resource finishes.If there is not then execution in step S105.
Step S105:Cell 2 judges the dispatched users that whether exists when the original scheduling resource RB0 of dispatched users to be adjusted (or RB4) dispatches RNTP to be designated as " 0 " in the residential quarter in other dispatched users; If there is the dispatched users of then obtaining these dispatched users best performance when the original scheduling resource RB0 of dispatched users to be adjusted (or RB4) dispatches, the original scheduling resource RB0 of dispatched users to be adjusted (or RB4) is distributed to this dispatched users, and reduce sign for this dispatched users arranges transmitting power; The adjustment of user's scheduling resource finishes.If there is not then execution in step S106.
2 pairs of dispatched users to be adjusted of step S106:Cell arrange transmitting power and reduce sign; The adjustment of user's scheduling resource finishes.
In the application example one, the RNTP indication information that cell base station sends according to resource prioritization configuration information and the neighbor cell base station that gets access at interference coordination cycle due in, execution is based on the interference coordination operation of resource prioritization, adjust user's scheduling resource or transmitting power, reduce presence of intercell interference, improve system resource efficient.
Application example two
As shown in Figure 3, base station eNB 1-eNB7 is seven neighbor cell base station, and three residential quarters are arranged under each eNB, and all there are 6 scheduling resource RB pieces each residential quarter: RB0, RB1, RB2, RB3, RB4, RB5; Be three cell configuration resource prioritizations, corresponding with RB, three residential quarters under the eNB1 are as example: Cell 1:[3,3,2,2,1,1], Cell 2:[1,1,3,3,2,2], Cell 3:[2,2,1,1,3,3].
In this application example, suppose that the residential quarter can get access to the strong interferers cell information of other cell schedulings user under the same eNB (such as obtaining according to CoMP technology or baseband pool technology etc.), take Cell 2 as example, the neighbor cell of Cell 2 comprises Cell 1, Cell 3, Cell 4, Cell 9, Cell 7 and Cell 12, wherein, Cell 2 can get access to the strong interferers cell information of Cell 1 and Cell 3 dispatched users.Suppose that current time is interference coordination cycle due in, the RNTP indication information that Cell 2 sends according to resource prioritization configuration information, the neighbor cell base station received and the strong interferers cell information that gets access to, execution comprises based on the interference coordination operation of resource prioritization and strong interferers residential quarter:
Resource RB0 for Cell 2, suppose that the RNTP indication that Cell 2 sends to neighbor cell is " 1 " at the RB0 correspondence position, and the RNTP indication that Cell 2 receives from neighbor cell is not " 0 " entirely at the RB0 correspondence position, then to obtain the neighbor cell that the priority on this resource in the neighbor cell is higher than Cell 2 be Cell 1 to Cell 2, Cell 3, Cell 4, Cell 9, Cell 7 and Cell 12, and judge that the RNTP indication of Cell 1 and Cell 4 is " 1 " at the RB0 correspondence position its RNTP indication of receiving from the high neighbor cell of these priority, and Cell 1 and Cell 4 do not comprise Cell 2 in the strong interferers residential quarter of dispatched users on RB0, and then Cell 2 arranges transmitting power raising sign to the dispatched users on its RB0.
Resource RB2 for Cell 2, suppose that the RNTP indication that Cell 2 sends to neighbor cell is " 1 " at the RB2 correspondence position, and the RNTP indication that Cell 2 receives from neighbor cell is " 0 " at the RB2 correspondence position, and then Cell 2 arranges transmitting power raising sign to the dispatched users on its RB2.
Resource RB4 for Cell 2, suppose that the RNTP indication that Cell 2 sends to neighbor cell is " 1 " at the RB4 correspondence position, and the RNTP indication that Cell 2 receives from neighbor cell is not " 0 " entirely at the RB4 correspondence position, then to obtain the neighbor cell that the priority on this resource in the neighbor cell is higher than Cell 2 be Cell 3 to Cell 2, Cell 9 and Cell 12, and the RNTP indication of judging its Cell 3 from the RNTP indication that the high neighbor cell of these priority is received is " 1 " at the RB4 correspondence position, and Cell 3 comprises Cell 2 in the strong interferers residential quarter of dispatched users on RB4, and then Cell 2 is to the dispatched users operation dispatching resource adjusting operation on its RB4.
Resource RB5 for Cell 2, suppose that the RNTP indication that Cell 2 sends to neighbor cell is " 0 " at the RB5 correspondence position, and there is " 1 " in the RNTP indication that Cell 2 receives from neighbor cell at the RB5 correspondence position, then Cell 2 RNTP indication of obtaining Cell 1 its RNTP indication of receiving from neighbor cell is " 1 " at the RB5 correspondence position, and Cell 1 comprises Cell 2 in the strong interferers residential quarter of dispatched users on RB5, and then Cell 2 arranges transmitting power reduction sign to the dispatched users on its RB5.
Wherein, Cell 2 comprises the dispatched users operation dispatching resource adjusting operation on its RB4:
Whether step S201:Cell 2 judges that RNTP indication correspondence position that free time in the residential quarter and neighbor cell send is in the resource of " 0 " and exists dispatched users to be adjusted RNTP when these resources scheduling to be designated as the resource collection of " 0 "; If exist Cell 2 to obtain in this resource collection the resource of dispatched users best performance to be adjusted, this resource is distributed to dispatched users to be adjusted, discharge simultaneously the original scheduling resource RB4 of dispatched users to be adjusted; The adjustment of user's scheduling resource finishes.If there is not then execution in step S202.
Step S202:Cell 2 obtains the resource that free time in the residential quarter and resource prioritization are higher than each neighbor cell, and obtain in these resources resource to dispatched users best performance to be adjusted, this resource is distributed to dispatched users to be adjusted, discharge simultaneously the original scheduling resource RB4 of dispatched users to be adjusted; Then, Cell2 judges that the RNTP of dispatched users to be adjusted on the scheduling resource after the adjustment indicates whether to be " 1 ", if be " 1 ", then 2 pairs of dispatched users to be adjusted of Cell arrange transmitting power raising sign; The adjustment of user's scheduling resource finishes.If there is not then execution in step S203.
Whether step S203:Cell 2 judges to exist in the scheduling resource of other dispatched users in the residential quarter makes dispatched users to be adjusted RNTP when these resources scheduling be designated as the resource of " 0 " and corresponding dispatched users set thereof;
If the set of this dispatched users exists, then Cell 2 obtains dispatched users and the corresponding resource collection thereof that dispatched users RNTP when the original scheduling resource RB4 scheduling of dispatched users to be adjusted in this dispatched users set is designated as " 0 "; If this resource collection exists, then Cell 2 obtains in this resource collection the resource of dispatched users best performance to be adjusted and the dispatched users of correspondence thereof, exchange the scheduling resource of this dispatched users and dispatched users to be adjusted, and for arranging transmitting power, this dispatched users reduces sign, then, Cell2 obtains the neighbor cell that the priority of each neighbor cell on the resource after the dispatched users adjustment to be adjusted is higher than Cell 2, and the resource correspondence position of RNTP indication after dispatched users to be adjusted is adjusted that obtains these neighbor cell base station transmissions is neighbor cell and corresponding dispatched users and the strong interferers residential quarter of " 1 ", then judge whether these strong interferers residential quarters comprise Cell 2, if comprise, then 2 pairs of dispatched users to be adjusted of Cell arrange transmitting power reduction sign; The adjustment of user's scheduling resource finishes.
If there are not then execution in step S204 in above-mentioned dispatched users set or resource collection.
Step S204:Cell 2 judges that the intra-cell resource priority are higher than in the dispatched users on the resource of each neighbor cell, whether has that RNTP is designated as the dispatched users of " 0 " and corresponding scheduling resource set thereof when the original scheduling resource RB4 scheduling of dispatched users to be adjusted;
If existing then, Cell 2 obtains in this resource collection the resource of dispatched users best performance to be adjusted and the dispatched users of correspondence thereof, exchange the scheduling resource of this dispatched users and dispatched users to be adjusted, and for arranging transmitting power, this dispatched users reduces sign, then, Cell 2 judges that the RNTP of dispatched users to be adjusted on the scheduling resource after the adjustment indicates whether to be " 1 ", if be " 1 ", then Cell 2 improves sign for dispatched users to be adjusted arranges transmitting power; The adjustment of user's scheduling resource finishes.If there is not then execution in step S205.
Step S205:Cell 2 judges the dispatched users that whether exists when the original scheduling resource RB4 of dispatched users to be adjusted scheduling RNTP to be designated as " 0 " in the residential quarter in other dispatched users;
If exist Cell 2 then to obtain the dispatched users of these dispatched users best performance when the original scheduling resource RB4 scheduling of dispatched users to be adjusted, the original scheduling resource RB4 of dispatched users to be adjusted is distributed to this dispatched users, and reduce sign for this dispatched users arranges transmitting power; The adjustment of user's scheduling resource finishes.If there is not then execution in step S206.
2 pairs of dispatched users to be adjusted of step S206:Cell arrange transmitting power and reduce sign; The adjustment of user's scheduling resource finishes.
In the application example two, the RNTP indication information that cell base station sends according to resource prioritization configuration information, the neighbor cell base station received at interference coordination cycle due in and the strong interferers cell information that gets access to, execution is based on the interference coordination operation of resource prioritization and strong interferers residential quarter, adjust user's scheduling resource or transmitting power, reduce presence of intercell interference, improve system resource efficient.
Application example three
As shown in Figure 3, base station eNB 1-eNB7 is seven neighbor cell base station, and three residential quarters are arranged under each eNB, and all there are 6 scheduling resource RB pieces each residential quarter: RB0, RB1, RB2, RB3, RB4, RB5; Be three cell configuration resource prioritizations, corresponding with RB, three residential quarters under the eNB1 are as example: Cell 1:[3,3,2,2,1,1], Cell 2:[1,1,3,3,2,2], Cell 3:[2,2,1,1,3,3].
And cell base station assists neighbor cell base station to carry out the interference coordination operation by carry extra strong interferers residential quarter indication (also can carry the indication of strong interferers residential quarter by specific messages) in sending to the RNTP Indication message of neighbor cell.Take Cell 1 as example, the neighbor cell of Cell 1 comprises Cell 2, Cell 3, Cell 17, Cell 15, Cell 14 and Cell 12, Cell 1 obtains the strong interferers cell information of dispatched users, generate the strong interferers residential quarter indication corresponding with RB, and be carried in the RNTP Indication message that sends to corresponding neighbor cell, send to corresponding neighbor cell.Suppose that Cell 1 strong interferers residential quarter of dispatched users on RB0 is Cell 2, the strong interferers residential quarter on RB4 is Cell 15, and then Cell 1 carries the indication of strong interferers residential quarter in sending to the RNTP Indication message of Cell 2: [1,0,0,0,0,0]; In sending to the RNTP Indication message of Cell 15, carry the indication of strong interferers residential quarter: [0,0,0,0,1,0].
The RNTP indication that the neighbor cell base station that cell base station configures, receives according to resource prioritization sends and the strong interferers residential quarter indication of receiving, the interference coordination of carrying out based on resource prioritization and strong interferers residential quarter operates.
In this application example, suppose that current time is interference coordination cycle due in, take Cell 2 as example, the neighbor cell of Cell 2 comprises Cell 1, Cell 3, Cell 4, Cell 9, Cell 7 and Cell 12, Cell2 receives the RNTP Indication message that neighbor cell base station sends, and has obtained simultaneously the strong interferers residential quarter indication that neighbor cell base station sends.Suppose that Cell 2 receives that the strong interferers residential quarter of Cell 1 is designated as: [1,0,0,0,0,0]; The strong interferers residential quarter of receiving Cell 7 is designated as: [0,0,0,0,0,1], illustrating that Cell 1 comprises Cell 2 in the strong interferers residential quarter of dispatched users on RB0, Cell 7 comprises Cell 2 in the strong interferers residential quarter of dispatched users on RB5.Cell 2 carries out the interference coordination operation based on resource prioritization and strong interferers residential quarter according to resource prioritization configuration information, the RNTP indication information that the neighbor cell base station received sends and the strong interferers residential quarter indication of receiving, comprising:
Resource RB0 for Cell 2, suppose that the RNTP indication that Cell 2 sends to neighbor cell is " 1 " at the RB0 correspondence position, and the RNTP indication that Cell 2 receives from neighbor cell is not " 0 " entirely at the RB0 correspondence position, then to obtain the neighbor cell that the priority on this resource in the neighbor cell is higher than Cell 2 be Cell 1 to Cell 2, Cell 3, Cell 4, Cell 9, Cell 7 and Cell 12, and judge that the RNTP indication of Cell 1 and Cell 4 is " 1 " at the RB0 correspondence position its RNTP indication of receiving from the high neighbor cell of these priority, and can judge that according to the strong interferers residential quarter indication that the Cell 1 that Cell 2 receives sends Cell 1 comprises Cell 2 in the strong interferers residential quarter of dispatched users on RB0, then Cell 2 is to the dispatched users operation dispatching resource adjusting operation on its RB0.
Resource RB2 for Cell 2, suppose that the RNTP indication that Cell 2 sends to neighbor cell is " 1 " at the RB2 correspondence position, and the RNTP indication that Cell 2 receives from neighbor cell is " 0 " at the RB2 correspondence position, and then Cell 2 arranges transmitting power raising sign to the dispatched users on its RB2.
Resource RB4 for Cell 2, suppose that the RNTP indication that Cell 2 sends to neighbor cell is " 1 " at the RB4 correspondence position, and the RNTP indication that Cell 2 receives from neighbor cell is not " 0 " entirely at the RB4 correspondence position, then to obtain the neighbor cell that the priority on this resource in the neighbor cell is higher than Cell 2 be Cell 3 to Cell 2, Cell 9 and Cell 12, and the RNTP indication of judging its Cell 3 from the RNTP indication that the high neighbor cell of these priority is received is " 1 " at the RB4 correspondence position, and Cell 2 does not receive the strong interferers residential quarter indication that Cell 3 sends, illustrate that Cell 3 does not comprise Cell 2 in the strong interferers residential quarter of dispatched users on RB4, then Cell 2 arranges transmitting power raising sign to the dispatched users on its RB4.
Resource RB5 for Cell 2, suppose that the RNTP indication that Cell 2 sends to neighbor cell is " 0 " at the RB5 correspondence position, and there is " 1 " in the RNTP indication that Cell 2 receives from neighbor cell at the RB5 correspondence position, then Cell 2 RNTP indication of obtaining Cell 7 its RNTP indication of receiving from neighbor cell is " 1 " at the RB5 correspondence position, and can judge that according to the strong interferers residential quarter indication that the Cell 7 that Cell 2 receives sends Cell 7 comprises Cell 2 in the strong interferers residential quarter of dispatched users on RB5, then Cell 2 arranges transmitting power reduction sign to the dispatched users on its RB5.
Wherein, Cell 2 comprises the dispatched users operation dispatching resource adjusting operation on its RB0:
Step S301:Cell 2 judges whether the resource collection that meets the following conditions: the RNTP indication correspondence position that free time and neighbor cell send in the residential quarter is the resource of " 0 ", and dispatched users to be adjusted RNTP when these resources scheduling is designated as the resource collection of " 0 ";
If exist then Cell 2 to obtain in this resource collection the resource of dispatched users best performance to be adjusted, this resource is distributed to dispatched users to be adjusted, discharge simultaneously the original scheduling resource RB0 of dispatched users to be adjusted; The adjustment of user's scheduling resource finishes.If there is not then execution in step S302.
Step S302:Cell 2 judges whether to exist free time in the residential quarter and resource prioritization to be higher than the resource of each neighbor cell;
Then obtain in these resources the resource of dispatched users best performance to be adjusted if exist, this resource is distributed to dispatched users to be adjusted, to discharge simultaneously the original scheduling resource RB0 of dispatched users to be adjusted; Then, Cell 2 judges that the RNTP of dispatched users to be adjusted on the scheduling resource after the adjustment indicates whether to be " 1 ", if be " 1 ", then 2 pairs of dispatched users to be adjusted of Cell arrange transmitting power raising sign; The adjustment of user's scheduling resource finishes.If there is not then execution in step S303.
Whether step S303:Cell 2 judges to exist in the scheduling resource of other dispatched users in the residential quarter makes dispatched users to be adjusted RNTP when these resources scheduling be designated as the resource of " 0 " and corresponding dispatched users set thereof;
If the set of this dispatched users exists, then Cell 2 obtains dispatched users and the corresponding resource collection thereof that dispatched users RNTP when the original scheduling resource RB0 scheduling of dispatched users to be adjusted in this dispatched users set is designated as " 0 "; If this resource collection exists, then Cell 2 obtains in this resource collection the resource of dispatched users best performance to be adjusted and the dispatched users of correspondence thereof, exchange the scheduling resource of this dispatched users and dispatched users to be adjusted, and for arranging transmitting power, this dispatched users reduces sign, then, Cell2 obtains the neighbor cell that the priority of each neighbor cell on the resource after the dispatched users adjustment to be adjusted is higher than Cell 2, and the resource correspondence position of RNTP indication after dispatched users to be adjusted is adjusted that obtains these neighbor cell base station transmissions is neighbor cell and corresponding dispatched users and the strong interferers residential quarter of " 1 ", then judge whether these strong interferers residential quarters comprise Cell 2, if comprise, then 2 pairs of dispatched users to be adjusted of Cell arrange transmitting power reduction sign; The adjustment of user's scheduling resource finishes.
If there are not then execution in step S304 in above-mentioned dispatched users set or resource collection.
Step S304:Cell 2 judges that intra-cell resource priority is higher than and whether has in the dispatched users on the resource of each neighbor cell that RNTP is designated as the dispatched users of " 0 " and corresponding scheduling resource set thereof when the original scheduling resource RB0 scheduling of dispatched users to be adjusted;
If existing then, Cell 2 obtains in this resource collection the resource of dispatched users best performance to be adjusted and the dispatched users of correspondence thereof, exchange the scheduling resource of this dispatched users and dispatched users to be adjusted, and for arranging transmitting power, this dispatched users reduces sign, then, Cell 2 judges that the RNTP of dispatched users to be adjusted on the scheduling resource after the adjustment indicates whether to be " 1 ", if be " 1 ", then Cell 2 improves sign for dispatched users to be adjusted arranges transmitting power; The adjustment of user's scheduling resource finishes.If there is not then execution in step S305.
Step S305:Cell 2 judges the dispatched users that whether exists when the original scheduling resource RB0 of dispatched users to be adjusted scheduling RNTP to be designated as " 0 " in the residential quarter in other dispatched users;
If exist Cell 2 then to obtain the dispatched users of these dispatched users best performance when the original scheduling resource RB0 scheduling of dispatched users to be adjusted, the original scheduling resource RB0 of dispatched users to be adjusted is distributed to this dispatched users, and reduce sign for this dispatched users arranges transmitting power; The adjustment of user's scheduling resource finishes.If there is not then execution in step S306.
2 pairs of dispatched users to be adjusted of step S306:Cell arrange transmitting power and reduce sign; The adjustment of user's scheduling resource finishes.
In the application example three, cell base station indicates to assist neighbor cell base station to carry out the interference coordination operation by carry the strong interferers residential quarter in sending to the RNTP Indication message of neighbor cell base station; Cell base station at interference coordination cycle due in according to resource prioritization configuration information, the RNTP indication information that the neighbor cell base station received sends and the strong interferers residential quarter indication of receiving, execution is based on the interference coordination operation of resource prioritization and strong interferers residential quarter, adjust user's scheduling resource or transmitting power, reduce presence of intercell interference, improve system resource efficient.
By above-mentioned explanation and preferred embodiment, a kind of minizone downlink interference collaboration method is provided, solved the interference coordination that exists in the correlation technique inaccurate and cause the lower problem of system resource efficient, described method can be carried out more accurately interference coordination operation, and then has reached the effect that reduces presence of intercell interference and improve system resource efficient.
Obviously, those skilled in the art should be understood that, each module of the present invention or each step can realize with general calculation element, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, carried out by calculation element thereby they can be stored in the storage device, perhaps they are made into respectively each integrated circuit modules, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.So the present invention is not restricted to the combination of any specific hardware and software.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (16)
1. the coordination approach of the descending interference in minizone comprises:
The base station obtains the RNTP indication information of adjacent base station, if there be N the transmitting power of base station on same Resource Block to surpass default thresholding, then the scheduling resource adjustment is carried out to the corresponding dispatched users on this Resource Block in wherein N-1 base station;
Described N 〉=2.
2. the method for claim 1 is characterized in that:
Described N-1 base station of dispatched users being carried out the scheduling resource adjustment is individual for the N-1 that priority is lower on same Resource Block.
3. method as claimed in claim 2 is characterized in that, described method is specially:
If the transmitting power of base station on a Resource Block surpasses default thresholding, then described base station judges whether the RNTP indication of receiving from each neighbor cell base station also exists transmitting power to surpass default thresholding at described correspondence position, surpass in the adjacent base station of default thresholding whether comprise the base station that priority is higher than described base station if then further judge transmitting power, if comprise then described base station to its dispatched users operation dispatching resource adjusting operation on described Resource Block.
4. method as claimed in claim 3 is characterized in that, described method also comprises:
If each adjacent base station of RNTP indication judgement that receive from each neighbor cell base station described base station all surpasses default thresholding in the transmitting power of described Resource Block correspondence position, then described base station arranges transmitting power raising sign to its dispatched users on described Resource Block.
5. the coordination approach of the descending interference in minizone comprises:
The base station obtains the RNTP indication information of adjacent base station, if a base station is not to have the transmitting power of adjacent base station on this Resource Block to surpass default thresholding on the Resource Block of limit priority, when any situation below the appearance, described base station is adjusted its dispatched users:
(1) residential quarter, place, described base station is the strong interferers residential quarter of the dispatched users of described adjacent base station;
(2) transmitting power of described base station on described Resource Block surpasses default thresholding.
6. method as claimed in claim 5 is characterized in that, described method is specially:
When described situation (1) occurring, if the transmitting power of described base station on described Resource Block do not surpass default thresholding, described base station refers to its dispatched users adjustment: described base station arranges transmitting power to its corresponding dispatched users and reduces sign.
7. method as claimed in claim 5 is characterized in that, described method is specially:
When described situation (1) occurring, if the transmitting power of described base station on described Resource Block also surpasses default thresholding, described base station refers to its dispatched users adjustment: the scheduling resource adjustment is carried out to its corresponding dispatched users in described base station.
8. method as claimed in claim 5 is characterized in that, described method also comprises:
Described base station obtains the RNTP indication information of adjacent base station, if the transmitting power of adjacent base station does not all surpass the budget thresholding on a Resource Block, and the transmitting power of described base station surpasses default thresholding, and then described base station arranges transmitting power raising sign to its corresponding dispatched users.
9. the coordination base station of the descending interference in minizone is characterized in that:
Described base station comprises acquisition of information module, judge module and adjusting module;
Described acquisition of information module is for the RNTP indication information that obtains neighbor cell;
Described judge module, be used for when the transmitting power of base station on a Resource Block surpasses default thresholding, judge the base station that whether exists on described Resource Block transmitting power to surpass default thresholding in the adjacent base station, judge further that then transmitting power surpasses in the adjacent base station of presetting thresholding whether comprise the base station that priority is higher than described base station, then indicates described adjusting module to the dispatched users operation dispatching resource adjustment of described base station on described Resource Block if comprise if exist;
Described adjusting module is used for according to indication the dispatched users operation dispatching resource adjusting operation on the described Resource Block.
10. base station as claimed in claim 9 is characterized in that:
Described judge module also is used for surpassing default thresholding when the transmitting power of base station on a Resource Block, and when the transmitting power of each adjacent base station on described Resource Block all do not surpass default thresholding, the indication adjusting module arranged transmitting power to the dispatched users on the described Resource Block and improves sign;
Described adjusting module also is used for according to described indication the dispatched users on the described Resource Block being arranged transmitting power and improves sign.
11. the coherent system of the descending interference in minizone is characterized in that:
Described system comprises selects module and adjusting module;
Described selection module is used for selecting N-1 base station wherein that the corresponding dispatched users on the described Resource Block is carried out the scheduling resource adjustment when occurring N the transmitting power of base station on same Resource Block above default thresholding; Described N 〉=2;
Described adjusting module carries out the scheduling resource adjustment to the corresponding dispatched users on the described Resource Block after being used for receiving described indication;
Described adjusting module is positioned at each base station.
12. system as claimed in claim 11 is characterized in that:
Described selection module is selected N-1 lower base station of priority from described Resource Block.
13. the coordination base station of the descending interference in minizone is characterized in that:
Described base station comprises acquisition of information module, judge module and adjusting module;
Described acquisition of information module is for the RNTP indication information that obtains neighbor cell;
Described judge module, be used for when described base station be not when having the transmitting power of adjacent base station on this Resource Block to surpass on the Resource Block of limit priority to preset thresholding, judge whether to exist following situation:
(1) residential quarter, place, described base station is the strong interferers residential quarter of the dispatched users of described adjacent base station;
(2) transmitting power of described base station on described Resource Block surpasses default thresholding;
If judge to have above any situation, then indicate adjusting module that the dispatched users of described base station on described Resource Block adjusted;
Described adjusting module is used for according to indication the dispatched users on the described Resource Block being adjusted.
14. base station as claimed in claim 13 is characterized in that:
When described situation (1) occurring, described judge module judges further whether the transmitting power of described base station on described Resource Block surpasses default thresholding, if do not surpass, described being designated as arranges transmitting power reduction sign to corresponding dispatched users;
Described adjusting module arranges transmitting power reduction sign to corresponding dispatched users after receiving described indication.
15. base station as claimed in claim 13 is characterized in that:
When described situation (1) occurring, described judge module judges further whether the transmitting power of described base station on described Resource Block surpasses default thresholding, if surpass, described being designated as arranges transmitting power reduction sign to corresponding dispatched users;
Described adjusting module receives that described indication arranges transmitting power to corresponding dispatched users and reduces sign.
16. base station as claimed in claim 13 is characterized in that:
Described judge module also is used for when the transmitting power of adjacent base station on the Resource Block does not all surpass the budget thresholding, whether the transmitting power of judging described base station surpasses default thresholding, then indicates adjusting module that corresponding dispatched users is arranged transmitting power raising sign as surpassing;
Described adjusting module arranges transmitting power raising sign to corresponding dispatched users after receiving described indication.
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