CN102932931A - Base station coordination method and device - Google Patents
Base station coordination method and device Download PDFInfo
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- CN102932931A CN102932931A CN2011102300806A CN201110230080A CN102932931A CN 102932931 A CN102932931 A CN 102932931A CN 2011102300806 A CN2011102300806 A CN 2011102300806A CN 201110230080 A CN201110230080 A CN 201110230080A CN 102932931 A CN102932931 A CN 102932931A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/022—Site diversity; Macro-diversity
- H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
Abstract
The invention discloses a base station coordination method and a base station coordination device. The method comprises the following steps that a base station which initiates coordination determines resources to be distributed to user equipment (UE); other base stations, except for the base station which initiates the coordination, in a coordinated multi-point transmission/reception (COMP) set coordinate with and choose the UE which is suitable for the resources from the UE which is managed by the respective base stations, wherein the COMP set comprises all the base stations which are capable of distributing and processing the resources. By the base station coordination method and the base station coordination device, the restraint of priority is not included in the conditions of initiating the coordination, and coordination opportunities can be effectively increased.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of base station collaboration method and device.
Background technology
Standard as the 4th generation communication system (4G), IMT-Advanced (Intelligent Multimode Terminal-Advanced, improved intelligent multi mode terminal) has higher requirement for the performance of system, especially the frequency efficiency of up-downgoing had higher requirement.
COMP (Coordinated multi-pointtransmission/reception, cooperative multipoint transmission) be a kind ofly can enlarge the speed rates coverage, improve cell edge service quality and throughput, and the technology of throughput of system, as the important technology that improves the system spectrum utilance, obtained paying close attention to widely.So-called cooperative multipoint transmission, namely one or more UE (User Equipment, subscriber equipment) are served in a plurality of base station collaboration transmission.The COMP of 3GPP definition comprises 2 kinds of scenes, and a kind of is the multipoint cooperative scheduling, namely by mutual schedule information between the adjacent node, reaches and disturbs the coordination of attaining the Way between each cell transmission signal; Another kind is that multi-point joint is processed, namely between a plurality of cooperative nodes by sharing data and CSI (Channel Situation Information, channel condition information), schedule information etc., uniting for the targeted customer provides service.Do not need mutual too many information between each node of advantage of multipoint cooperative scheduling, wave point is impact not, and its shortcoming is to obtain the cooperation transmission gain, to the not contribution of raising of spectrum utilization efficiency.Multi-point joint is processed and can be obtained grand diversity and cooperation transmission gain, can obtain the processing gain of high-order antenna.Its shortcoming is need a large amount of data messages and CSI information mutual, and complexity is high.
The cooperative multipoint transmission Organization Chart as shown in Figure 1, link to each other by X2 Interface (light mouth) between serving BS Serving eNode-B and the cooperative base station Collaborative eNode-B, two base stations provide resource for UE0 and UE1 simultaneously, and X2 interface is undefined at present.
Be positioned at the user of cell edge and the distance of neighbor cell and the distance of Serving cell and have comparativity, submit to the characteristics of network MIMO (Multi-Input Multi-Output, multiple-input and multiple-output).In addition, edge customer is main objects interfered (the descending interference that is subject to adjacent cells is gone up guild simultaneously and disturbed adjacent cells).Current main employing be FFR (Fractional Frequency Reuse, the partial frequency multiplexing technology) and the means of power control, FFR disturbs the strategy of hiding, in this manner, if collaborative, can bring larger performance boost for edge customer, improve simultaneously the overall performance of system.
Now the mode classification of COMP is elaborated:
(1) JP (Joint Processing, joint transmission), index is according to available on the base station of collaboration set.Comprise 2 kinds of situations:,
(a) joint transmission (JT), namely (all or part of) base station in each collaboration set is to the UE the transmission of data;
The base station of cooperation sends data (relevant or uncorrelated) simultaneously to UE, improves received signal quality or active elimination to the interference of other UE.
(b) DCS (Dynamic Channel Selection, dynamic channel is selected) refers to that a base station in the COMP set sends data to UE.
(2) CS/CB (Coordinated Scheduling/Beamforming, the equal arrangement/equal framework), index be according to only can using at serving BS, but the user is in the cooperation centralized dispatching or carry out beamforming.
In addition, consider from link direction, COMP also can be divided into: up link UL COMP and down link DL COMP, that main application is descending COMP at present.
When standard is discussed, substantially tend to arrange the method for native region priority at present, utilize priority that the residential quarter is divided, during for the UE scheduling resource, at first select the high residential quarter of priority, the defective of this method is the chance that has reduced the COMP cooperation.
In fact, the interference that UE under the different base station receives not necessarily the equity, need this moment cooperation to eliminate the interference that UE accepts, and the processed mode that adopts in the correlation technique has reduced the chance of COMP cooperation, may not reach this purpose in the situation that the needs cooperation is eliminated to disturb.For example, referring to Fig. 2, UE a can also receive the wireless signal b that NB2 sends except the signal a that receives base station NB1, and the signal a that NB1 is sent forms interference.Therefore and UE b not necessarily receives the interference signal a of NB1, and the UE under two base stations receives that disturbed condition is different, and it also is different eliminating the requirement of disturbing to whether needing to cooperate.And to the example of Fig. 2, only need to eliminate the interference that UE a receives just passable, and in actual motion, need to all carry out interference cancellation operation to two UE, cause the waste of resource.
Problem for having reduced the chance that COMP cooperates in the correlation technique, having caused the waste of resource not yet proposes effective solution at present.
Summary of the invention
Main purpose of the present invention is to provide a kind of base station collaboration method and device, to solve at least the chance that has reduced the COMP cooperation in the above-mentioned correlation technique, the problem that causes the waste of resource.
According to an aspect of the present invention, provide a kind of base station collaboration method, having comprised: the resource of user equipment (UE) is determined to be about to distribute in the base station of initiating cooperation; Selected to be applicable to the UE of described resource by the cooperation in the UE of separately management of other base stations except the base station of described initiation cooperation in the cooperative multipoint transmission COMP set, wherein, comprise in the described COMP set that all can carry out to described resource the base station of allocation process.
Preferably, the base station of described initiation cooperation is determined to be about to distribute to before the pre-allocation resource of UE, also comprise: each UE determines the measurement COMP set of self, wherein, comprise at least one sector in the described measurement COMP set, described UE can detect the down public guide frequency signal of described at least one sector, and the down public guide frequency signal strength signal intensity of described at least one sector surpasses predetermined threshold value.
Preferably, selected to be applicable to the UE of described resource by the cooperation in the UE of separately management of other base stations except the base station of described initiation cooperation in the COMP set, comprising: described other base stations judge that whether described resource is by the one or more UEs of preassignment to appointment; The UE of described resource is selected to be applicable in described other base stations according to judged result.
Preferably, the UE of described resource is selected to be applicable in described other base stations according to judged result, comprise: if described resource not by preassignment to specifying UE, described other base stations never participate in selecting among the preallocated UE UE and described other base station pairings, and described resource are distributed to the UE of successful matching.
Preferably, the UE of described resource is selected to be applicable in described other base stations according to judged result, comprising: if described resource by preassignment to specifying UE, described other base stations and described appointment UE match.
Preferably, described other base stations and described appointment UE match, and comprising: if successful matching, the pre-coding matrix of described resource is directly calculated in described other base stations according to the channel information of the UE of successful matching feedback; If match unsuccessfully, described pre-coding matrix is calculated according to the priority of the base station of the channel information of the unsuccessful UE of pairing feedback and described initiation cooperation in described other base stations.
Preferably, the pre-coding matrix of described resource is calculated in described other base stations in conjunction with the priority of the base station of described initiation cooperation, comprise: when the priority of the base station of described initiation cooperation was higher than the priority of described other base stations, described other base stations utilized the channel information that does not comprise described appointment UE feedback to calculate described pre-coding matrix; When the priority of the base station of described initiation cooperation was lower than the priority of described other base stations, pairing was forced to described appointment UE in described other base stations, and utilized the channel information of described appointment UE feedback to calculate described pre-coding matrix.
According to another aspect of the present invention, a kind of base station collaboration system is provided, comprise in the base station of initiating cooperation and the cooperative multipoint transmission COMP set other base stations of base station except described initiation cooperation: the base station of described initiation cooperation, for the resource of determining to be about to distribute to user equipment (UE); Described other base stations are used for selecting to be applicable in the UE of separately management cooperation the UE of described resource, wherein, comprise in the described COMP set that all can carry out to described resource the base station of allocation process.
Preferably, initiating base station and described other base stations of cooperation also gathers for the measurement COMP of the UE that makes self-management, wherein, comprise at least one sector in the described measurement COMP set, described UE can detect the down public guide frequency signal of described at least one sector, and the down public guide frequency signal strength signal intensity of described at least one sector surpasses predetermined threshold value.
Preferably, described other base stations also are used for judging that whether described resource is by the one or more UEs of preassignment to appointment; Select to be applicable to the UE of described resource according to judged result.
Preferably, if described other base stations also be used for described resource not by preassignment to specifying UE, never participate in selecting among the preallocated UE UE and described other base stations to match, and described resource distributed to the UE of successful matching.
Preferably, if described other base stations also be used for described resource by preassignment to specifying UE, match with described appointment UE.
Preferably, if described other base stations also are used for successful matching, the direct channel information that feeds back according to the UE of successful matching calculates the pre-coding matrix of described resource; If match unsuccessfully, calculate described pre-coding matrix according to the priority of the base station of the channel information of the unsuccessful UE of pairing feedback and described initiation cooperation.
Preferably, when the priority that described other base stations also are used for the base station of described initiation cooperation is higher than the priority of described other base stations, utilize the channel information that does not comprise described appointment UE feedback to calculate described pre-coding matrix; When the priority of the base station of described initiation cooperation is lower than the priority of described other base stations, described appointment UE is forced pairing, and utilize the channel information of described appointment UE feedback to calculate described pre-coding matrix.
In embodiments of the present invention, the resource of UE is determined to be about to distribute in the base station of initiating cooperation, selected to be applicable to the UE of resource by the cooperation in the UE of separately management of other base stations except the base station of initiating cooperation in the COMP set, namely, in the condition that cooperation is initiated, do not have the constraint of priority in the embodiment of the invention, can effectively increase the cooperation chance.
Description of drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the cooperative multipoint transmission Organization Chart according to correlation technique;
Fig. 2 is the asymmetric cooperation scene graph according to correlation technique;
Fig. 3 is the process chart according to the base station collaboration method of the embodiment of the invention;
Fig. 4 is the structural representation that arranges according among the embodiment one of the embodiment of the invention;
Fig. 5 is the enforcement case scene graph according to the embodiment two of the embodiment of the invention;
Fig. 6 is the process chart according to the embodiment two of the embodiment of the invention;
Fig. 7 is the structural representation according to the base station collaboration system of the embodiment of the invention.
Embodiment
Hereinafter also describe in conjunction with the embodiments the present invention in detail with reference to accompanying drawing.Need to prove, in the situation that do not conflict, embodiment and the feature among the embodiment among the application can make up mutually.
Mention in the correlation technique, when standard is discussed, substantially tend to arrange the method for native region priority at present, utilize priority that the residential quarter is divided, during for the UE scheduling resource, at first select the high residential quarter of priority, the defective of this method is the chance that has reduced the COMP cooperation.In fact, the interference that UE under the different base station receives not necessarily the equity, need this moment cooperation to eliminate the interference that UE accepts, and the processed mode that adopts in the correlation technique has reduced the chance of COMP cooperation, may not reach this purpose in the situation that the needs cooperation is eliminated to disturb, and can cause the waste of resource.
For solving the problems of the technologies described above, the embodiment of the invention provides a kind of base station collaboration method, and its handling process comprises as shown in Figure 3:
The resource of UE is determined to be about to distribute in step S302, the base station of initiating to cooperate;
Step S304, by the UE that is applicable to above-mentioned resource in the COMP set except other base stations cooperation selection in the UE of separately management in the base station of initiating cooperation;
Wherein, comprise in the COMP set that all can carry out to above-mentioned resource the base station of allocation process.
In embodiments of the present invention, the resource of UE is determined to be about to distribute in the base station of initiating cooperation, selected to be applicable to the UE of resource by the cooperation in the UE of separately management of other base stations except the base station of initiating cooperation in the COMP set, namely, in the condition that cooperation is initiated, do not have the constraint of priority in the embodiment of the invention, can effectively increase the cooperation chance.
In a preferred embodiment, initiating the base station of cooperation determines to be about to distribute to before the pre-allocation resource of UE, each UE determines the measurement COMP set of self, wherein, measure in the COMP set and comprise at least one sector, UE can detect the down public guide frequency signal of at least one sector, and the down public guide frequency signal strength signal intensity of at least one sector surpasses predetermined threshold value.During enforcement, by relative intensity thresholding control survey COMP set, can reduce the cost of cooperation, additional income.
During enforcement, flow process as shown in Figure 3, step S304 is selected to be applicable to the UE of above-mentioned resource by the cooperation in the UE of separately management of other base stations except the base station of initiating cooperation in the COMP set, its handling process is as follows: above-mentioned resource is judged by the one or more UEs of preassignment to appointment in other base stations whether, and selects to be applicable to the UE of above-mentioned resource according to judged result.
In a preferred embodiment, the UE of resource can be selected to be applicable to according to judged result in other base stations, concrete, if above-mentioned resource not by preassignment to specifying UE, then other base stations never participate in selecting among the preallocated UE UE and described other base station pairings, and above-mentioned resource are distributed to the UE of successful matching.
During enforcement, the channel information that different resource is corresponding is different, therefore, in the process of pairing, can utilize channel information to match, if channel information can successful matching, just generation support resource can successful matching, and then above-mentioned resource may be distributed to the UE of successful matching.
Concrete, from the another one angle, if resource by preassignment to specifying UE, then match with appointment UE other base stations.
During enforcement, the pairing the possibility of result is successful matching, also may be that pairing is unsuccessful, difference according to the pairing result, the definite result of resource who whether is UE scheduling pre-scheduling is also different, during enforcement, if successful matching, then preferred processing mode comprises: if successful matching, the pre-coding matrix of above-mentioned resource is directly calculated in other base stations according to the channel information of the UE feedback of successful matching.
If configure unsuccessfully, preferred processing mode comprises: the pre-coding matrix of above-mentioned resource is calculated in other base stations according to the channel information of the unsuccessful UE feedback of pairing and the priority of initiating the base station of cooperation.
Other base stations are in conjunction with the pre-coding matrix of the priority computational resource of the base station of initiating cooperation herein, and its preferred processing mode comprises:
When the priority of the base station of initiation cooperation was higher than the priority of other base stations, other base stations utilized and do not comprise that the channel information of specifying the UE feedback calculates the pre-coding matrix of above-mentioned resource;
When the priority of the base station of initiation cooperation was lower than the priority of other base stations, pairing was forced to appointment UE in other base stations, and the channel information of utilization appointment UE feedback calculates the pre-coding matrix of above-mentioned resource.
For the embodiment of the invention being provided base station collaboration method elaboration ground clearer clearer, now describe with specific embodiment.
Embodiment one
Be provided with structure as shown in Figure 4 in the present embodiment, specifically comprise following each module, and enumerated the function of each module:
Pre-scheduling module: need to change at original system, increase the preassignment function of interface-free resources;
Up channel data reception module: be responsible for receiving the channel measurement data of UE by eating dishes without rice or wine to pass;
Downlink precoding module: change at original system, increase dynamic precoding function;
The COMP module: newly-increased module, safeguard the UE collaboration set, the resource collaboration collection, pre-coding matrix W calculates, and faces the information such as station mutual resource, channel, time, precoding.
Up channel feedback module: finish the feedback to interference channel;
Channel measurement module: finish the measurement to service station, jamming station channel;
Based on said structure, the base station collaboration method that the embodiment of the invention provides may further comprise the steps:
The first step, UE detect all down public guide frequency signal strength signal intensities;
If certain downstream signal of second step surpasses threshold value with respect to the signal strength signal intensity in service station, then this downstream signal is carried out the full bandwidth channel measurement, all surpass the measurement COMP collection of the base station formation UE of thresholding;
The 3rd step, up channel feedback module according to resource information, the channel data amount of distributing, carry out automatic particle size matching to channel data, and channel data is issued the base station;
The 4th step, up channel data reception module detect channel data, issue the COMP module;
The 5th step, COMP module maintenance resources collaboration set, the notice scheduler module is carried out pre-scheduling, and according to the COMP collection of UE the resource information of pre-scheduling, channel information, temporal information is issued corresponding base station;
After the 6th step, COMP module are received the information that sends, according to the COMP set, carry out following pairing algorithm:
Set is matched if 1 corresponding resource, then never participates in preallocated user selection user and COMP not by preassignment;
If 2 corresponding resources by preassignment, are then matched with the user who uses this resource and COMP set, if w is then calculated in successful matching, utilize the sector of successful matching that UE is carried out scheduling of resource;
If 3 match unsuccessfully, and our station (being the sector) priority is high, does not consider the channel information that the our station feedback is come when then calculating w, does not also utilize our station that UE is carried out scheduling of resource;
If match unsuccessfully, and our station priority is low, forces pairing, calculates w, and utilizes our station that UE is carried out scheduling of resource.
Definite successful matching or unsuccessful after, calculate the downlink precoding matrix of the resource that can dispatch according to the channel information at the service station in the COMP set and other stations.
The 7th step, COMP module are issued the downlink precoding module to precoding information when scheduling of resource.
The base station collaboration method and apparatus that adopts the invention process to provide is compared with correlation technique, has following advantage:
1, disturb elimination with strong points, have just to disturb and eliminate, do not have to disturb and then carry out according to original flow process, independence is strong, reacts fast;
2, do not have the constraint of priority in the cooperation initiation condition, can effectively increase the cooperation chance;
3, asymmetric cooperation has reduced unnecessary information feedback;
4, asymmetric cooperation is at first taked to surpass the residential quarter of thresholding as the initial collaboration set of UE based on the common pilot signal relative intensity, the base station distributes decision resource collaboration collection to carry out the collaboration set control second time by resource, two collaboration set controls are more flexible, can be so that UE is more level and smooth in collaboration mode and the control of non-collaboration mode;
5, by relative intensity thresholding control UE collaboration set, can make the cooperation cost little, income is large.
Embodiment two
Referring to enforcement case scene graph shown in Figure 5, wherein,
CELLb is arranged, two sectors of CELLc below the NB2;
Sector of CELLa is arranged below the NB1;
The present Serving cell of UEa is CELLa, is in the border of CELLa and CELLb, therefore can receive the interference signal of CELLb;
The present Serving cell of UEb is CELLb; Be in the border of CELLb and CELLc, therefore can receive the interference signal of CELLc;
The present Serving cell of UEc is CELLc, is in the border of CELLa, CELLb, three residential quarters of CELLc, therefore can receive the interference signal of CELLb, CELLa.
Suppose that the resource that three UE distribute is all overlapping, if not overlapping then pre-coding matrix need not change, still process according to the mode of mentioning in the correlation technique.
Concrete collaboration method comprises as shown in Figure 6:
All descending RSRP (Received Signal Code Power that step S602, UEa observe to affiliated NB1 report, the down public guide frequency signal strength signal intensity, also can use other parameters to replace), if surpass thresholding then reporting channel information, this regular meeting reports the channel information at our station and CELLb station simultaneously.
All descending RSRP that step S604, UEb observe to affiliated NB2 report, if surpass thresholding then reporting channel information, this example reports the channel information at our station and CELLc station simultaneously.
After step S606, NB1 (owing to including only CELLa, being also referred to as NBa) receive the report of UEa, send the channel information of the CELLb of UEa measurement to NB2-CELLb (being called for short NBb), the resource allocation information of UEa.
After step S608, NB2-CELLb receive the report of UEb, send the channel information of the CELLc of UEb measurement to NB2-CELLc b (being called for short NBc).
The pre-coding matrix that step S610, NB1 still use the mode of correlation technique to produce to UEa.
Step S612, NB1 send the resource allocation information of UEa to NB2-CELLb.
All descending RSRP that step S614, UEc observe to affiliated NB2-CELLc report, and report simultaneously the channel information at our station and CELLb, two stations of CELLc.
After step S616, NB2-CELLc receive the report of UEc, send the channel information of the CELLb of UEc measurement to NB2-CELLb, the resource allocation information of UEc; Send the channel information of the CELLa of UEc measurement to NB1-CELLa, the resource allocation information of UEc.
Step S618, NB2-CELLB are to distributing to UEb, and the resource identical with UEa or UEc, according to the CELLb channel of UEa measurement, the CELLb channel that UEc measures, the CELLb channel that UEb measures, calculate the descending pre-coding matrix of UEb according to maximum leakage than principle.
Step S620, NB2-CELLc are to distributing to UEc, and the identical resource of UEc, and the CELLc channel that CELLc, the UEc that measures according to UEb measures calculates the descending pre-coding matrix of UEc according to maximum leakage than principle.
Step S622, NB1-CELLa are to distributing to UEa, and the identical resource of UEc, and the CELLa channel that CELLa, the UEa that measures according to UEc measures calculates the descending pre-coding matrix of UEa according to maximum leakage than principle.
NB2CELLB wherein, therefore the cooperation between the NB2-CELLC does not cooperate by the x2 interface owing to being under the same NB, is undertaken by modes such as shared variables; Cooperation between NB1 and the NB2 is undertaken by the x2 interface.
Based on same inventive concept, the embodiment of the invention also provides a kind of base station collaboration system, and its structural representation comprises other base stations 702 except the base station of initiating cooperation in the base station 701 of initiating cooperation and the cooperative multipoint transmission COMP set as shown in Figure 7:
Initiate the base station 701 of cooperation, be used for determining to be about to distribute to the resource of user equipment (UE);
In one embodiment, preferably, base station 701 and other base stations 702 of initiating cooperation can also be used for making the UE of self-management to determine that the measurement COMP of self gathers, wherein, measure in the COMP set and comprise at least one sector, UE can detect the down public guide frequency signal of at least one sector, and the down public guide frequency signal strength signal intensity of at least one sector surpasses predetermined threshold value.
In one embodiment, preferred, other base stations 702 can also be used for judging that whether above-mentioned resource is by the one or more UEs of preassignment to appointment; Select to be applicable to the UE of above-mentioned resource according to judged result.
In one embodiment, preferred, if other base stations 702 can also above-mentioned resource not by preassignment to specifying UE, never participate in selecting among the preallocated UE UE and other base stations to match, and above-mentioned resource distributed to the UE of successful matching.
In one embodiment, preferred, if other base stations 702 can also above-mentioned resource by preassignment to specifying UE, UE matches with appointment.
In one embodiment, preferred, if other base stations 702 can also be used for successful matching, the pre-coding matrix of the channel information computational resource that directly feeds back according to the UE of successful matching; If match unsuccessfully, calculate pre-coding matrix according to the channel information of the unsuccessful UE of pairing feedback and the priority of initiating the base station of cooperation.
In one embodiment, preferred, when the priority of the base station 701 that other base stations 702 can also initiate to cooperate is higher than the priority of other base stations 702, utilize not comprise the channel information calculating pre-coding matrix of specifying the UE feedback; When the priority of the base station 701 of initiation cooperation is lower than the priority of other base stations 702, force pairing to specifying UE, and utilize the channel information of appointment UE feedback to calculate pre-coding matrix.
As can be seen from the above description, the present invention has realized following technique effect:
In embodiments of the present invention, the resource of UE is determined to be about to distribute in the base station of initiating cooperation, selected to be applicable to the UE of resource by the cooperation in the UE of separately management of other base stations except the base station of initiating cooperation in the COMP set, namely, in the condition that cooperation is initiated, do not have the constraint of priority in the embodiment of the invention, can effectively increase the cooperation chance.
Obviously, those skilled in the art should be understood that, above-mentioned 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, thereby, they can be stored in the storage device and be carried out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, 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.Like this, the present invention is not restricted to any specific hardware and software combination.
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 (14)
1. a base station collaboration method is characterized in that, comprising:
The resource of user equipment (UE) is determined to be about to distribute in the base station of initiating cooperation;
Selected to be applicable to the UE of described resource by the cooperation in the UE of separately management of other base stations except the base station of described initiation cooperation in the cooperative multipoint transmission COMP set, wherein, comprise in the described COMP set that all can carry out to described resource the base station of allocation process.
2. method according to claim 1 is characterized in that, the base station of described initiation cooperation is determined to be about to distribute to before the pre-allocation resource of UE, also comprises:
Each UE determines the measurement COMP set of self, wherein, comprise at least one sector in the described measurement COMP set, described UE can detect the down public guide frequency signal of described at least one sector, and the down public guide frequency signal strength signal intensity of described at least one sector surpasses predetermined threshold value.
3. method according to claim 1 is characterized in that, is selected to be applicable to the UE of described resource by the cooperation in the UE of separately management of other base stations except the base station of described initiation cooperation in the COMP set, comprising:
Described other base stations judge that whether described resource is by the one or more UEs of preassignment to appointment;
The UE of described resource is selected to be applicable in described other base stations according to judged result.
4. method according to claim 3, it is characterized in that, the UE of described resource is selected to be applicable in described other base stations according to judged result, comprise: if described resource not by preassignment to specifying UE, described other base stations never participate in selecting among the preallocated UE UE and described other base station pairings, and described resource are distributed to the UE of successful matching.
5. method according to claim 3 is characterized in that, the UE of described resource is selected to be applicable in described other base stations according to judged result, comprising: if described resource by preassignment to specifying UE, described other base stations and described appointment UE match.
6. method according to claim 5 is characterized in that, described other base stations and described appointment UE match, and comprising:
If the pre-coding matrix of described resource is directly calculated in successful matching, described other base stations according to the channel information of the UE of successful matching feedback;
If match unsuccessfully, described pre-coding matrix is calculated according to the priority of the base station of the channel information of the unsuccessful UE of pairing feedback and described initiation cooperation in described other base stations.
7. method according to claim 6 is characterized in that, the pre-coding matrix of described resource is calculated in described other base stations in conjunction with the priority of the base station of described initiation cooperation, comprising:
When the priority of the base station of described initiation cooperation was higher than the priority of described other base stations, described other base stations utilized the channel information that does not comprise described appointment UE feedback to calculate described pre-coding matrix;
When the priority of the base station of described initiation cooperation was lower than the priority of described other base stations, pairing was forced to described appointment UE in described other base stations, and utilized the channel information of described appointment UE feedback to calculate described pre-coding matrix.
8. a base station collaboration system is characterized in that, comprises other base stations except the base station of described initiation cooperation in the base station of initiating cooperation and the cooperative multipoint transmission COMP set:
The base station of described initiation cooperation is for the resource of determining to be about to distribute to user equipment (UE);
Described other base stations are used for selecting to be applicable in the UE of separately management cooperation the UE of described resource, wherein, comprise in the described COMP set that all can carry out to described resource the base station of allocation process.
9. system according to claim 8, it is characterized in that, the base station of described initiation cooperation and described other base stations also are used for making the UE of self-management in the measurement COMP set of determining self, wherein, comprise at least one sector in the described measurement COMP set, described UE can detect the down public guide frequency signal of described at least one sector, and the down public guide frequency signal strength signal intensity of described at least one sector surpasses predetermined threshold value.
10. system according to claim 8 is characterized in that, described other base stations also are used for judging that whether described resource is by the one or more UEs of preassignment to appointment; Select to be applicable to the UE of described resource according to judged result.
11. system according to claim 10, it is characterized in that, if described other base stations also be used for described resource not by preassignment to specifying UE, never participate in selecting among the preallocated UE UE and described other base stations to match, and described resource distributed to the UE of successful matching.
12. system according to claim 10 is characterized in that, if described other base stations also be used for described resource by preassignment to specifying UE, match with described appointment UE.
13. system according to claim 12 is characterized in that, if described other base stations also are used for successful matching, the direct channel information that feeds back according to the UE of successful matching calculates the pre-coding matrix of described resource; If match unsuccessfully, calculate described pre-coding matrix according to the priority of the base station of the channel information of the unsuccessful UE of pairing feedback and described initiation cooperation.
14. system according to claim 13, it is characterized in that, when the priority that described other base stations also are used for the base station of described initiation cooperation is higher than the priority of described other base stations, utilize the channel information that does not comprise described appointment UE feedback to calculate described pre-coding matrix; When the priority of the base station of described initiation cooperation is lower than the priority of described other base stations, described appointment UE is forced pairing, and utilize the channel information of described appointment UE feedback to calculate described pre-coding matrix.
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| CN201110230080.6A CN102932931B (en) | 2011-08-11 | 2011-08-11 | Base station coordination method and device |
| PCT/CN2012/073187 WO2012152148A1 (en) | 2011-08-11 | 2012-03-28 | Base station cooperation method and system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100105404A1 (en) * | 2008-10-24 | 2010-04-29 | Qualcomm Incorporated | Acknowledgment based on short cell radio network temporary identifier |
| CN101778428A (en) * | 2009-01-14 | 2010-07-14 | 大唐移动通信设备有限公司 | Method, system and device for determining time frequency resource |
| CN101784103A (en) * | 2009-01-19 | 2010-07-21 | 大唐移动通信设备有限公司 | Method for scheduling users in a plurality of communities and wireless access network equipment thereof |
| CN101820631A (en) * | 2009-02-27 | 2010-09-01 | 中国移动通信集团公司 | Method for performing coordinated scheduling among base stations in mobile communication system and base stations |
| CN101895940A (en) * | 2010-07-26 | 2010-11-24 | 北京邮电大学 | Method for distributing resources between main service cell and coordinate cells |
Family Cites Families (3)
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| CN101741442B (en) * | 2008-11-20 | 2013-03-20 | 华为技术有限公司 | Method for confirming resource mapping in cooperative multicast transmission, network equipment and system |
| CN101888665B (en) * | 2009-05-13 | 2013-03-13 | 普天信息技术研究院有限公司 | Local scheduler-based multi-point cooperative transmission method |
| CN101932111B (en) * | 2009-06-26 | 2015-04-01 | 中兴通讯股份有限公司 | Method and system for resource scheduling between enhanced base stations |
-
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100105404A1 (en) * | 2008-10-24 | 2010-04-29 | Qualcomm Incorporated | Acknowledgment based on short cell radio network temporary identifier |
| CN101778428A (en) * | 2009-01-14 | 2010-07-14 | 大唐移动通信设备有限公司 | Method, system and device for determining time frequency resource |
| CN101784103A (en) * | 2009-01-19 | 2010-07-21 | 大唐移动通信设备有限公司 | Method for scheduling users in a plurality of communities and wireless access network equipment thereof |
| CN101820631A (en) * | 2009-02-27 | 2010-09-01 | 中国移动通信集团公司 | Method for performing coordinated scheduling among base stations in mobile communication system and base stations |
| CN101895940A (en) * | 2010-07-26 | 2010-11-24 | 北京邮电大学 | Method for distributing resources between main service cell and coordinate cells |
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| WO2012152148A1 (en) | 2012-11-15 |
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