CN101686078B - Data transmission method and data transmission device - Google Patents
Data transmission method and data transmission device Download PDFInfo
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- CN101686078B CN101686078B CN2008102233617A CN200810223361A CN101686078B CN 101686078 B CN101686078 B CN 101686078B CN 2008102233617 A CN2008102233617 A CN 2008102233617A CN 200810223361 A CN200810223361 A CN 200810223361A CN 101686078 B CN101686078 B CN 101686078B
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Abstract
The invention discloses a data transmission method and a data transmission device, which are used for solving the problem of inter-cell interference. The method comprises the following steps: determining the direction information of a terminal positioned at the edge of a cell relative to the cell, and determining a directional area the cell needs to avoid according to the direction information; according to the directional area the cell needs to avoid, determining a service terminal of the cell on each resource and a beamforming direction of the service terminal, and determining a beamforming weight vector according to the beamforming direction; and on each resource, performing beamforming transmission on data transmitted to the service terminal according to the beamforming weight vector. In the scheme provided by the invention, the spatial orientation information of an edge terminal and scheduling information on time frequency resources are taken into consideration, and the inter-cell interference is avoided effectively.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of method and device of transfer of data.
Background technology
(Long Term Evolution, LTE) system supports descending wave beam forming transmission to the Long Term Evolution of 3-G (Generation Three mobile communication system).Wherein wave beam forming is meant that the base station is according to terminal (User Equipment; UE) feedack or the base station information self estimating out; On each physical antenna of transmitting terminal, introduce different weighted values, the signal that is transmitted into each UE is concentrated in the narrower beam area.Adopt the method for this wave beam forming can strengthen the UE received signal to noise ratio, simultaneously,, therefore, also can reduce the interference of other UE outside this angle direction because the energy of emission all concentrates in the narrower beam angle scope.
When receiving terminal is separated timing to the received signal; The part that can processing procedure that introduce the different weights value on the physical antenna be used as channel variation; The fading channel of the equivalence that the UE dedicated reference symbols that can use same process figuration to handle once estimates UE to be experienced is considered the actual channel fading and the influence of weighting figuration in the estimation procedure.
The wave beam forming technology can reduce the interference that other UE are produced; And in the prior art when design beam figuration weighing vector; Do not take all factors into consideration attitude information and the resource scheduling information of cell edge UE; Therefore, in the prior art and the characteristic of utilization wave beam forming not yet in effect control the interference that wave beam that this sub-district forms is caused the edge UE of neighbor cell.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of method and device of transfer of data, the interference problem that the wave beam that this sub-district forms when solving transfer of data in the prior art is caused the edge UE of neighbor cell.
The method of a kind of transfer of data that the embodiment of the invention provides comprises:
The UE that confirms to be positioned at cell edge is the directional information of this sub-district relatively, confirms the direction zone that said sub-district needs are avoided according to this directional information;
According to the direction zone that said sub-district needs are avoided, confirm the service UE of said sub-district on each resource, reach the wave beam forming direction of said service UE, confirm the weighing vector of wave beam forming according to said wave beam forming direction;
On said each resource,, the data that send to said service terminal are carried out the wave beam forming transmission according to said wave beam forming weighing vector.
The device of a kind of transfer of data that the embodiment of the invention provides comprises:
The direction determination module is used to confirm to belong to the UE directional information of this sub-district relatively that is positioned at cell edge, confirms the direction zone that said sub-district needs are avoided according to this directional information;
Scheduler module, the service UE of said sub-district on each resource confirmed in the direction that is used for avoiding according to said sub-district needs zone, and the wave beam forming direction of said edge UE, confirms the wave beam forming weighing vector according to said wave beam forming direction;
Sending module is used on said each resource according to said wave beam forming weighing vector, and the data that send to said service UE are carried out the wave beam forming transmission.
The embodiment of the invention provides a kind of method and device of transfer of data; Each the edge UE that confirms to be positioned at the sub-district in embodiments of the present invention is the directional information of this sub-district relatively, confirms the direction zone that these sub-district needs are avoided according to this directional information, when carrying out scheduling of resource; Consider that the direction that need avoid this sub-district is regional; Confirm the service UE of this sub-district on each resource, reach the wave beam forming direction of this service UE, and confirm the wave beam forming weighing vector according to the wave beam forming direction; On each resource,, the data that send to this service UE are carried out the wave beam forming transmission according to this wave beam forming weighing vector.Therefore adopt embodiment provided by the invention to take into full account attitude information and the running time-frequency resource schedule information of edge UE, thereby can effectively avoid the interference of minizone.
Description of drawings
Fig. 1 is the method flow diagram of a kind of transfer of data of providing in the embodiment of the invention;
The embodiment flow chart of the transfer of data that Fig. 2 provides for the embodiment of the invention;
The neighbor cell sketch map of Fig. 3 for providing in the embodiment of the invention;
The apparatus structure sketch map of the transfer of data that Fig. 4 provides for the embodiment of the invention.
Embodiment
The interference problem that for the wave beam of effectively controlling this sub-district formation neighbor cell edge UE is caused in the embodiment of the invention; Take all factors into consideration the resource scheduling information of attitude information and the edge UE of cell edge UE, thereby can effectively avoid interference among adjacent cells.As shown in Figure 1, the flow chart of a kind of data transmission method that provides for the embodiment of the invention specifically may further comprise the steps:
S101: the UE that confirms to be positioned at cell edge is the directional information of this sub-district relatively, confirms the direction zone that said sub-district needs are avoided according to this directional information.
Wherein, the UE that confirms the to be positioned at cell edge directional information of this sub-district relatively comprises:
Said each edge UE directional information of this sub-district is relatively confirmed according to the uplink pilot signal that each the edge UE that receives sends in the sub-district; Wherein be positioned at the UE of cell edge, the Serving cell of this edge UE possibly also possibly be the neighbor cell of this sub-district for this sub-district.
Or; The Serving cell of edge UE is according to the pilot signal strength of the neighbor cell of edge UE feedback; And the geographical location information of the neighbor cell of preserving, confirm each edge UE directional information of each sub-district relatively, and this information is sent to said each neighbor cell.
S102: according to the direction zone that said sub-district needs are avoided, confirm the service UE of this sub-district on each resource, and the wave beam forming direction of said service UE, confirm the wave beam forming weighing vector according to said wave beam forming direction.
Wherein, the edge termination that belongs to this sub-district comprises that the Serving cell of this edge termination is this sub-district.
Confirm the service UE of this sub-district on each resource; And the wave beam forming direction of said service UE comprises: when controlling the scheduling of resource of a plurality of sub-districts by same evolved base station (eNB); The direction zone that eNB avoids according to each sub-district needs in these a plurality of sub-districts belongs to the directional information of the edge termination of this sub-district and the schedule information of neighbor cell service UE; Confirm the service UE of this sub-district on each resource, and the wave beam forming direction of said service UE; Or
Rule according to being provided with is confirmed the service UE of this sub-district on each resource, and the wave beam forming direction of said service UE.
Direction zone according to said sub-district needs are avoided confirm the service terminal of said sub-district on each resource, and the wave beam forming direction of said service terminal comprises further:
The direction zone of avoiding according to said sub-district needs and the schedule information of neighbor cell service terminal are confirmed the service terminal of said sub-district on each resource, and the wave beam forming direction of said service terminal.
Direction zone according to said sub-district needs are avoided confirm the service terminal of said sub-district on each resource, and the wave beam forming direction of said service terminal comprises further:
Direction according to said sub-district needs are avoided is regional, and belongs to the directional information of the said relatively sub-district of edge termination of said sub-district, confirms the service terminal of said sub-district on each resource, and the wave beam forming direction of said service terminal.
Direction zone according to said sub-district needs are avoided confirm the service terminal of said sub-district on each resource, and the wave beam forming direction of said service terminal comprises further:
The directional information of the direction zone of avoiding according to said sub-district needs, the said relatively sub-district of edge termination that belongs to said sub-district and the schedule information of neighbor cell service terminal; Confirm the service terminal of said sub-district on each resource, and the wave beam forming direction of said service terminal.
In embodiments of the present invention, confirm the service UE of this sub-district on each resource, and the wave beam forming direction of said service UE comprises according to the rule that is provided with:
According to the direction zone that these sub-district needs are avoided, on each resource, avoid all direction that need avoid zones, confirm the service UE of this sub-district on each resource, and the wave beam forming direction of said service UE; Or
Resource limit scope according to edge UE in each sub-district that is provided with; Direction according to these sub-district needs are avoided is regional; Confirm that the direction that on each resource, need avoid this sub-district is regional, and confirm the service UE of this sub-district on each resource, and the wave beam forming direction of said service UE; Or
According to the frequency hopping rule of edge UE, and the direction that this sub-district need be avoided is regional, and confirm that the direction that on each resource, need avoid is regional, and confirm the service UE of this sub-district on each resource, and the wave beam forming direction of said service UE.
Confirm that according to said wave beam forming direction the wave beam forming weighing vector comprises:
Estimate the uplink channel information of said edge termination according to the uplink pilot signal of edge termination; Confirm the descending channel information of said edge termination according to said uplink channel information, confirm the wave beam forming weighing vector according to said descending channel information and said wave beam forming direction.
S103: on said each resource,, the data that send to said service UE are carried out the wave beam forming transmission according to said wave beam forming weighing vector.
In embodiments of the present invention, resource comprises: time resource and/or frequency resource.
Below in conjunction with Figure of description the embodiment of the invention is carried out detailed explanation.
As shown in Figure 2, the embodiment of the transfer of data that provides for the embodiment of the invention may further comprise the steps:
S201: the signal that sends to the edge UE of sub-district can cause interference to its neighbor cell.When Serving cell confirms whether UE is edge UE; Can judge through the information that ascending control channel or Uplink Shared Channel report according to each UE; This information that reports comprises the pilot signal strength of its neighbor cell that UE measures, and the sub-district ID of detected neighbor cell.
When the information that reports according to UE when the Serving cell of this UE confirms that this UE is cell edge UE; The sub-district ID of its neighbor cell that the Serving cell of this UE reports according to this edge UE; To the relevant information that the neighbor cell of this UE sends this UE, wherein the relevant information of this UE comprises: the frequency hopping Rule Information of the ID of this UE and/or this UE etc.
S202: after confirming to be positioned at the UE of cell edge, obtain this edge UE directional information of this sub-district relatively in embodiments of the present invention.
And the method for obtaining the direction of relative this sub-district of edge UE comprises:
Edge UE sends uplink pilot signal (Sounding Reference Signal according to being configured in of network on official hour and the frequency; SRS); Receive the SRS of the UE transmission that is positioned at this cell edge when the sub-district after, estimate this edge UE direction of this sub-district relatively according to this SRS.
Perhaps; Also can be by the Serving cell of this edge UE, according to the pilot signal strength of the neighbor cell of this edge UE feedback, and combine the geographical location information of neighbor cell; Estimate the directional information of this edge UE, and this directional information is sent to the neighbor cell of this sub-district with respect to each sub-district.
S203: according to the edge UE that is positioned at this sub-district that obtains, but Serving cell is the edge UE directional information of this sub-district relatively of neighbor cell, confirms the direction zone that need avoid this sub-district, the direction zone that just need avoid during the wave beam forming of this sub-district.
As shown in Figure 3, the edge UE that is arranged in sub-district 1 comprises: UE11, UE12, UE32 and UE21.Wherein, The Serving cell of UE11 and UE12 is sub-district 1; The Serving cell of UE32 is sub-district 3, the Serving cell of UE21 is sub-district 2, is that UE11, UE12, UE32 and UE21 are relatively after the directional information of this sub-district when sub-district 1 has obtained edge UE; Then, confirm the direction zone that to avoid sub-district 1 according to the directional information of the relative sub-district 1 of UE32 with UE21.And the neighbor cell of UE11 comprises sub-district 3, and therefore, sub-district 3 obtains the relatively directional information of this sub-district of UE11, and then the direction zone that need avoid, sub-district 3 comprises according to what edge UE11 confirmed and avoids direction; The neighbor cell of UE12 comprises sub-district 2, and therefore, sub-district 2 obtains the relatively directional information of this sub-district of UE12, and then the direction zone that need avoid, sub-district 2 comprises according to what edge UE12 confirmed and avoids direction.
In the embodiment of the invention; Because the actual wave beam that forms all has certain width; Therefore the angle parameter Δ is set in embodiments of the present invention, according to the UE that is positioned at this cell edge, but Serving cell is the directional information of relative this sub-district of edge UE of neighbor cell; According to the scope within the direction positive and negative deviation Δ angle, the direction zone that need avoid when confirming this sub-district wave beam forming.Wherein, the angle parameter Δ is confirmed according to the specific algorithm of wave beam forming.For example the direction of the relative sub-district 2 of UE12 is 43 degree, and the angle parameter Δ of setting is 5 degree, and the direction zone that need avoid in the time of then can knowing sub-district 2 wave beam formings does, sub-district 2 is from 38 directions spent in the 48 degree scopes relatively.
Owing to belong to the edge UE of neighbor cell; Can in neighbor cell, be assigned on certain resource; Therefore, when confirming the wave beam forming direction of service UE and service UE of each sub-district in embodiments of the present invention, need confirm according to neighbor cell scheduling situation on corresponding resource.
As shown in Figure 3; The edge UE that belongs to the interference that possibly receive sub-district 1 of neighbor cell comprises: UE32 and UE21; Wherein UE32 is assigned on the resource 2 by sub-district 3, and UE21 is assigned on the resource 2 by sub-district 2, so sub-district 1 has both direction to avoid on resource 2; Be the direction of the relative sub-district 1 of UE32, and the direction of the relative sub-district 1 of UE21.
S204: do scheduling of resource; Direction according to these sub-district needs are avoided is regional; The directional information that belongs to the edge termination of this sub-district, and the scheduling of resource situation of neighbor cell are confirmed the service UE of sub-district on each resource; And the wave beam forming direction of service UE, confirm the wave beam forming weighing vector according to this wave beam forming direction.
Wherein, when the service UE of confirming is the center UE of sub-district, then according to the transmission mode transmission of prior art according to its setting.When the service UE of confirming is edge UE; The weighing vector of wave beam forming then is set for this edge UE; Wherein, the weighing vector of wave beam forming need guarantee to reduce the interference of this sub-district on each the direction zone that need avoid on this resource under the prerequisite to the gain of service UE when being set as far as possible.
At time division duplex (Time Division Duplex; TDD) in the system, if edge UE has sent uplink SRS, then the Serving cell of this edge UE is when definite wave beam forming weighing vector; The uplink SRS of at first sending according to edge UE is estimated the uplink channel information of this UE; Then, according to the uplink channel information that estimates, utilize the reciprocity of TDD system channel can obtain the descending channel information of this UE; At last, can confirm the wave beam forming weighing vector according to this descending channel information and wave beam forming direction.
S205: network terminal is to each service UE sending controling instruction, and indication sends to the shared resource of data of this UE, and the modulation system and the code rate that send to each data flow of this UE.Adopt this resource, send data to this service UE.
When the service UE of sub-district is edge UE, the data behind the weighting figuration that will obtain according to the weighing vector of wave beam forming, the antenna transmission through this sub-district is to this service UE.In sending the occupied Resource Block of data, comprise, this edge UE is used for the dedicated pilot of demodulating data, and dedicated pilot adopts with Resource Block of living in and sends the identical weighting figuration of data parameter.
Service UE receives the data of sending according to control signaling and dedicated pilot, and the data that receive are deciphered.
In embodiments of the present invention, scheduling of resource is confirmed the service UE of sub-district on each resource, and the method for the direction of the wave beam forming of service UE comprises:
Embodiment one:
When a plurality of sub-districts of cooperation were controlled by same eNB, this eNB was responsible for the resource allocation of all sub-districts.Because preserve the direction area information that the needs of each sub-district are avoided among this eNB, when concrete scheduling of resource, according to the directional information of each edge UE, each sub-district is avoided on the direction zone that needs are avoided, forming wave beam.
As shown in Figure 3; UE32 is assigned on the resource 2 by sub-district 3; Therefore UE21 is assigned on the resource 2 by sub-district 2, and when confirming the service UE of sub-district 1 in resource 2, the direction of the relative sub-district 1 of this UE32 and UE21 just is the direction of avoiding of sub-district 1; So sub-district 1 can form the wave beam that points to UE12 on resource 2, perhaps this resource allocation is given the UE at 1 center, sub-district.If the direction of the relative sub-district 1 of UE11 is avoided in the direction scope the relative sub-district 1 of UE32, when promptly the space angle of UE11 and UE32 was less than the angle parameter Δ that is provided with, then being not sure of the service UE of sub-district 1 on resource 2 was UE11.
Embodiment two:
When dispatch respectively each sub-district; Preserve the directional information that belongs to neighbor cell but may receive relative this sub-district of edge UE of its interference in each sub-district; But this sub-district does not know what resource this edge UE is dispatched on by the neighbor cell under it, therefore, and in the concrete service UE of definite sub-district on each resource; When reaching the wave beam forming direction of service UE, can adopt following method:
Method one:
According to the direction area information that the sub-district needs are avoided, on each resource, all avoid all direction that need avoid zones, carry out the distribution of service UE resource.
As shown in Figure 3, preserve UE11 and UE31 directional information in the sub-district 2 with respect to sub-district 2, each direction is avoided according to the direction area information that the needs of this preservation are avoided in sub-district 2 on all resources when confirming service UE.
Method two:
Possible scope of resource when the edge UE of each this sub-district of cell scheduling is set; This scope of resource can calculate according to the ID of edge UE; When the UE of its sub-district of cell scheduling,, confirm service UE and the wave beam forming direction of service UE on each resource according to the setting of preserving.
As shown in Figure 3; UE31 is set is dispatched to (or being scheduled on some resources) on the resource 1; When the 2 scheduling edge UE of sub-district, according to this sub-district 2 is set and knows that UE31 can be dispatched on the resource 1 by sub-district 3, so sub-district 2 is when dispatching UE on resource 1; The direction zone that need avoid according to the relative UE31 needs of preserving, thus confirm service UE and the wave beam forming direction of service UE on resource 1.
Method three:
Edge UE can adopt the frequency hopping rule, and the Serving cell of edge UE is responsible for notifying neighbor cell with its frequency hopping rule.The sub-district is when dispatching; Frequency hopping rule according to the edge UE that belongs to neighbor cell is confirmed the scope of resource that this moment this edge UE can be assigned to; Avoid the direction of this edge UE on the resource in this scope with respect to this sub-district; And then confirm the service UE on this resource, and the wave beam forming direction of service UE.
Only need to share directional information and the schedule information of edge UE in embodiments of the present invention between the sub-district; And the data message that sends to UE need not shared between the sub-district; Therefore the information sharing amount between the sub-district reduces, and is applicable to that the minizone connects the situation of rate-constrained.
As shown in Figure 4, the embodiment of the invention provides a kind of device of transfer of data, comprising:
Scheduler module 41, the service UE of said sub-district on each resource confirmed in the direction that is used for avoiding according to said sub-district needs zone, and the wave beam forming direction of said service UE, confirms the wave beam forming weighing vector according to said wave beam forming direction;
Sending module 42 is used on said each resource according to said wave beam forming vector the data that send to said service UE being carried out the wave beam forming transmission.
Said direction determination module 40 comprises:
First direction is confirmed unit 400, is used for the uplink pilot signal according to the UE transmission that is positioned at cell edge that receives, and confirms each edge UE directional information of this sub-district relatively.
Said direction determination module 40 comprises:
Second direction is confirmed unit 401; Be used for pilot signal strength according to the neighbor cell of edge UE feedback; And the geographical location information of the neighbor cell of preserving, confirm each edge UE directional information of each sub-district relatively, and this directional information is sent to said each neighbor cell.
Said direction determination module 40 also comprises:
Avoid direction to confirm unit 402, be used for,, confirm the direction zone that to avoid said sub-district according to the angle parameter that is provided with according to this directional information.
Said scheduler module 41 comprises:
Said scheduler module 41 comprises:
Said scheduler module 41 comprises:
The 3rd scheduling unit 412; The directional information of the direction zone that is used for avoiding, the said relatively sub-district of edge termination that belongs to said sub-district and the schedule information of neighbor cell service terminal according to said sub-district needs; Confirm the service terminal of said sub-district on each resource, and the wave beam forming direction of said service terminal.
Said the 3rd scheduling unit 412 comprises:
The first scheduling sublayer unit; The direction zone that is used for avoiding according to said sub-district needs belongs to the directional information of the edge termination of this sub-district and the schedule information of neighbor cell service UE; Confirm the service UE of said sub-district on each resource, and the wave beam forming direction of said service UE.
Said the 3rd scheduling unit 412 comprises:
The second scheduling sublayer unit is used for confirming the service UE of said sub-district on each resource according to the rule that is provided with, and the wave beam forming direction of said service UE.
The said second scheduling sublayer unit comprises:
The first scheduling sublayer module, the direction that is used for avoiding zone according to said sub-district needs, the service UE of said sub-district on each resource confirmed in the direction zone of on each resource, avoiding said needs to avoid, and the wave beam forming direction of said service UE.
The said second scheduling sublayer unit comprises:
The second scheduling sublayer module; Be used for resource limit scope,, confirm the direction zone that on each resource, need avoid according to the direction zone that said sub-district needs are avoided according to the edge UE that is provided with; And confirm the service UE of said sub-district on each resource, and the wave beam forming direction of said service UE.
The said second scheduling sublayer unit comprises:
The 3rd scheduling sublayer module; Be used for frequency hopping rule, and the direction that said sub-district need be avoided is regional, confirms the direction zone that on each resource, need avoid according to edge UE; And confirm the service UE of said sub-district on each resource, and the wave beam forming direction of said service UE.
The embodiment of the invention provides a kind of method and device of transfer of data; The UE that confirms to be positioned at cell edge in embodiments of the present invention is the directional information of this sub-district relatively; Confirm the direction zone that these sub-district needs are avoided according to this directional information; When carrying out scheduling of resource, the direction zone of considering need to avoid this sub-district belongs to directional information and the schedule information of neighbor cell service UE of the edge termination of this sub-district; Confirm the service UE of this sub-district on each resource and the wave beam forming direction of this service UE; Confirm the wave beam forming weighing vector according to this wave beam forming direction, on each resource,, the data that send to this service UE are carried out the wave beam forming transmission according to this wave beam forming weighing vector.Therefore adopt embodiment provided by the invention to take into full account attitude information and the resource scheduling information of edge UE, thereby can effectively avoid the interference of minizone.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (21)
1. the method for a transfer of data is characterized in that, comprising:
The terminal of confirming to be positioned at cell edge is the directional information of this sub-district relatively, confirms the direction zone that said sub-district needs are avoided according to said directional information;
According to the direction zone that said sub-district needs are avoided, confirm the service terminal of said sub-district on each resource, and the wave beam forming direction of said service terminal, confirm the wave beam forming weighing vector according to said wave beam forming direction;
On said each resource,, the data that send to said service terminal are carried out the wave beam forming transmission according to said wave beam forming weighing vector.
2. the method for claim 1 is characterized in that, the direction zone according to said sub-district needs are avoided confirm the service terminal of said sub-district on each resource, and the wave beam forming direction of said service terminal comprises further:
According to the direction zone that said sub-district needs are avoided, reach the schedule information of neighbor cell service terminal, confirm the service terminal of said sub-district on each resource, and the wave beam forming direction of said service terminal.
3. the method for claim 1 is characterized in that, the direction zone according to said sub-district needs are avoided confirm the service terminal of said sub-district on each resource, and the wave beam forming direction of said service terminal comprises further:
Direction according to said sub-district needs are avoided is regional, and belongs to the directional information of the said relatively sub-district of edge termination of said sub-district, confirms the service terminal of said sub-district on each resource, and the wave beam forming direction of said service terminal.
4. like claim 1,2 or 3 described methods, it is characterized in that the direction zone according to said sub-district needs are avoided confirm the service terminal of said sub-district on each resource, and the wave beam forming direction of said service terminal comprises further:
The directional information of the direction zone of avoiding according to said sub-district needs, the said relatively sub-district of edge termination that belongs to said sub-district and the schedule information of neighbor cell service terminal; Confirm the service terminal of said sub-district on each resource, and the wave beam forming direction of said service terminal.
5. the method for claim 1 is characterized in that, the said terminal of confirming the to be positioned at cell edge directional information of this sub-district relatively comprises:
The uplink pilot signal that send according to each terminal that is positioned at this cell edge that receives the sub-district is confirmed each edge termination directional information of this sub-district relatively; Or
The Serving cell of edge termination is according to the pilot signal strength of the neighbor cell of edge termination feedback; And the geographical location information of the neighbor cell of preserving; Confirm each edge termination directional information of each sub-district relatively, and this directional information is sent to each said neighbor cell.
6. the method for claim 1 is characterized in that, confirms that according to said directional information the direction zone that said sub-district needs are avoided comprises:
According to this directional information,, confirm the direction zone that to avoid said sub-district according to the angle parameter that is provided with.
7. method as claimed in claim 4 is characterized in that, confirms the service terminal of said sub-district on each resource, and the wave beam forming direction of said service terminal comprises:
The direction zone that evolved base station is avoided according to said sub-district needs; The directional information and the schedule information of neighbor cell service terminal that belong to the edge termination of this sub-district; Confirm the service terminal of said sub-district on each resource, and the wave beam forming direction of said service terminal; Or
Rule according to being provided with is confirmed the service terminal of said sub-district on each resource, and the wave beam forming direction of said service terminal.
8. method as claimed in claim 7 is characterized in that, said rule according to setting is confirmed the service terminal of said sub-district on each resource, and the wave beam forming direction of said service terminal comprises:
According to the direction zone that said sub-district needs are avoided, the service terminal of said sub-district on each resource confirmed in the direction zone of on each resource, avoiding said needs to avoid, and the wave beam forming direction of said service terminal; Or
Resource limit scope according to edge termination in each sub-district that is provided with; Direction according to said sub-district needs are avoided is regional; Confirm that the direction that on each resource, need avoid is regional, and confirm the service terminal of said sub-district on each resource, and the wave beam forming direction of said service terminal; Or
According to the frequency hopping rule of edge termination, and the direction that said sub-district need be avoided is regional, and confirm that the direction that on each resource, need avoid is regional, and confirm the service terminal of said sub-district on each resource, and said service terminal wave beam forming direction.
9. the method for claim 1 is characterized in that, confirms that according to said wave beam forming direction the wave beam forming weighing vector comprises:
Estimate the uplink channel information of said edge termination according to the uplink pilot signal of edge termination; Confirm the descending channel information of said edge termination according to said uplink channel information, confirm the wave beam forming weighing vector according to said descending channel information and said wave beam forming direction.
10. the device of a transfer of data is characterized in that, this device comprises:
The direction determination module, the terminal that is used to confirm to be positioned at cell edge is the directional information of this sub-district relatively, confirms the direction zone that said sub-district needs are avoided according to said directional information;
Scheduler module, the service terminal of said sub-district on each resource confirmed in the direction that is used for avoiding according to said sub-district needs zone, and the wave beam forming direction of said service terminal, confirms the wave beam forming weighing vector according to said wave beam forming direction;
Sending module is used on said each resource according to said wave beam forming weighing vector, and the data that send to said service terminal are carried out the wave beam forming transmission.
11. device as claimed in claim 10 is characterized in that, said direction determination module comprises:
First direction is confirmed the unit, is used for the uplink pilot signal according to each terminal transmission that is positioned at cell edge that receives, and confirms each edge termination directional information of this sub-district relatively.
12. device as claimed in claim 10 is characterized in that, said direction determination module comprises:
Second direction is confirmed the unit; Be used for pilot signal strength according to the neighbor cell of edge termination feedback; And the geographical location information of the neighbor cell of preserving, confirm each edge termination directional information of each sub-district relatively, and this directional information is sent to each said neighbor cell.
13. device as claimed in claim 10 is characterized in that, said direction determination module also comprises:
Avoid direction to confirm the unit, be used for,, confirm the direction zone that to avoid said sub-district according to the angle parameter that is provided with according to this directional information.
14. device as claimed in claim 10 is characterized in that, said scheduler module comprises:
First scheduling unit, the service terminal of said sub-district on each resource confirmed in the direction that is used for avoiding according to said sub-district needs zone, and the schedule information of neighbor cell service terminal, and the wave beam forming direction of said service terminal.
15. device as claimed in claim 10 is characterized in that, said scheduler module comprises:
Second scheduling unit; The direction zone that is used for avoiding according to said sub-district needs; And belong to the directional information of the said relatively sub-district of edge termination of said sub-district, confirm the service terminal of said sub-district on each resource, and the wave beam forming direction of said service terminal.
16. device as claimed in claim 10 is characterized in that, said scheduler module comprises:
The 3rd scheduling unit; The directional information of the direction zone that is used for avoiding, the said relatively sub-district of edge termination that belongs to said sub-district and the schedule information of neighbor cell service terminal according to said sub-district needs; Confirm the service terminal of said sub-district on each resource, and the wave beam forming direction of said service terminal.
17. device as claimed in claim 16 is characterized in that, said the 3rd scheduling unit comprises:
The first scheduling sublayer unit; Be used for the direction zone avoided according to said sub-district needs in evolved base station; The directional information that belongs to the edge termination of this sub-district; And the schedule information of neighbor cell service terminal, confirm the service terminal of said sub-district on each resource, and the wave beam forming direction of said service terminal.
18. device as claimed in claim 16 is characterized in that, said the 3rd scheduling unit comprises:
The second scheduling sublayer unit is used for confirming the service terminal of said sub-district on each resource according to the rule that is provided with, and the wave beam forming direction of said service terminal.
19. device as claimed in claim 18 is characterized in that, the said second scheduling sublayer unit comprises:
The first scheduling sublayer module, the direction that is used for avoiding zone according to said sub-district needs, the service terminal of said sub-district on each resource confirmed in the direction zone of on each resource, avoiding said needs to avoid, and the wave beam forming direction of said service terminal.
20. device as claimed in claim 18 is characterized in that, the said second scheduling sublayer unit comprises:
The second scheduling sublayer module; Be used for resource limit scope according to the edge termination that is provided with; Direction according to said sub-district needs are avoided is regional; Confirm that the direction that on each resource, need avoid is regional, and confirm the service terminal of said sub-district on each resource, and the wave beam forming direction of said service terminal.
21. device as claimed in claim 18 is characterized in that, the said second scheduling sublayer unit comprises:
The 3rd scheduling sublayer module; Be used for frequency hopping rule, and the direction that said sub-district need be avoided is regional, confirms the direction zone that on each resource, need avoid according to edge termination; And confirm the service terminal of said sub-district on each resource, and the wave beam forming direction of said service terminal.
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| US8755355B2 (en) * | 2010-05-26 | 2014-06-17 | Telefonaktiebolaget L M Ericsson (Publ) | Methods and systems for user equipment positioning using intercell interference coordination |
| CN102572915B (en) * | 2010-12-20 | 2016-02-03 | 上海贝尔股份有限公司 | A kind of base station based on self adaptation layer beam excipient transmitting data stream and method |
| EP2656675B1 (en) | 2010-12-22 | 2017-06-14 | Telefonaktiebolaget LM Ericsson (publ) | Coordinated scheduling for time division duplex network |
| CN102170691B (en) * | 2011-05-20 | 2014-09-10 | 大唐移动通信设备有限公司 | Downlink channel power control method and device therefor |
| WO2014153761A1 (en) * | 2013-03-28 | 2014-10-02 | 华为技术有限公司 | Beam forming processing method and apparatus |
| CN112566276B (en) | 2015-08-06 | 2024-03-15 | 瑞典爱立信有限公司 | Method and device for transmission based on interception |
| CN108667550B (en) * | 2017-03-28 | 2020-02-14 | 华为技术有限公司 | Interference coordination method and device |
| CN111182629B (en) * | 2018-11-09 | 2023-04-07 | 深圳市中兴微电子技术有限公司 | Inter-cell interference coordination method, base station and storage medium |
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