CN101998669B - Dynamic connection method based on base station cooperation, base station, cooperation multi-input multi-output system - Google Patents
Dynamic connection method based on base station cooperation, base station, cooperation multi-input multi-output system Download PDFInfo
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Abstract
The embodiment of the invention discloses a dynamic connection method based on base station cooperation, comprising the following steps: constructing a cooperative base station information table corresponding to a subscriber according to cooperative base station information fed back by the subscriber; transmitting the cooperative base station information table to various cooperative base stations fed back by the subscriber; receiving the feedback information of each cooperative base station, wherein the feedback information is used for marking whether each cooperative base station can participate in cooperation; determining the cooperative base stations capable of participating in the cooperation according to the feedback information of the each cooperative base station; updating the information tables of the cooperative stations; and transmitting the updated cooperative base station information tables to the cooperative base stations capable of participating in the cooperation. Correspondingly, the embodiment of the invention also discloses a base station and a cooperation multi-input multi-output system. Through the technical scheme, the cooperative base station information table is constructed, and an efficient and reliable mode is provided for mutual information and coordination resource among related base stations participating in cooperation service.
Description
Technical field
The present invention relates to the communications field, particularly a kind of dynamic connection method of base station collaboration, base station and cooperation multi-input multi-output system.
Background technology
Collaboration MIMO (Co-MIMO, Cooperative Multiple-Input Multiple-Output, the cooperation multiple-input and multiple-output) technology has been regarded as a key physical layer technology of IMT-Advanced (International MobileTelecommunications-Advanced, IMT-Advanced) standard.In the cellular system of channeling, presence of intercell interference has become the principal element of moving-limiting communication performance in global scope, and the basic thought of Co-MIMO then is the signal transmission of coordinating a plurality of base stations, to alleviate inter-cell interference.In the Co-MIMO system, what a plurality of base stations (Base Station, BS) will cooperate simultaneously provides communication service for a plurality of users (Mobile Station, MS).
The base station collaboration technology is a key technology in the Co-MIMO system, adopts the base station collaboration technology can replace in the mode of multi-user Cooperation shared resource traditional resource contention pattern, promotes the capacity of whole system and increases the reliability of link.Existing base station collaboration mode mainly comprises two classes: the cooperation that the cooperation that the base station drives and user drive.The former is that the base station determines the collaboration region according to situation own and that peripheral base station covers, does not need user's participation.The latter refers to that then the user is according to the cooperation of the situation application base station of oneself.Corresponding existing cooperation framework also comprises two classes: static cooperation and dynamic cooperative.The former refers in region delimitation cooperation scope, and the base station resource of cooperation is provided.Latter refers to dynamically adjust the cooperation scope according to the variation of specific environment or business demand, and base station resource and the clear and definite collaboration object of cooperation are provided.
In the dynamic cooperative framework, because reasonability and flexibility that it distributes and utilize resource, become gradually the crucial framework of Co-MIMO system research and application, and how under the framework of dynamic cooperative, make cooperative base station realize effectively connecting, namely how to make up the cooperation relation between the base station under the dynamic cooperative framework, will become the dynamic cooperative framework and can dispose and enforceable key issue.
Summary of the invention
The embodiment of the invention provides a kind of dynamic connection method, base station and cooperation multi-input multi-output system of base station collaboration, by making up the cooperative base station information table, for participating in as the user provides between the relevant base station of collaboration services interactive information and coordinates resource, provide a kind of than more efficient and reliable mode.
The embodiment of the invention provides a kind of dynamic connection method of base station collaboration, comprising:
According to the cooperative base station information of user feedback, make up the cooperative base station information table corresponding with described user;
Described cooperative base station information table is sent to each cooperative base station of user feedback, described cooperative base station information table is for user profile and other cooperative base station information of informing that described each cooperative base station need to cooperate;
Receive the feedback information of described each cooperative base station, whether described feedback information is used for identifying described each cooperative base station can participate in cooperation, and described feedback information is that described each cooperative base station is made according to described cooperative base station information table and self-condition;
According to the feedback information of described each cooperative base station, definite cooperative base station that can participate in cooperating is upgraded described cooperative base station information table, and the cooperative base station information table after upgrading is sent to the described cooperative base station that can participate in cooperating.
The embodiment of the invention provides a kind of base station, comprising:
Make up module, be used for the cooperative base station information according to user feedback, make up the cooperative base station information table corresponding with described user;
The first sending module, for each cooperative base station that described cooperative base station information table is sent to user feedback, described cooperative base station information table is for user profile and other cooperative base station information of informing that described each cooperative base station need to cooperate;
Receiver module, be used for receiving the feedback information of described each cooperative base station, whether described feedback information is used for identifying described each cooperative base station can participate in cooperation, and described feedback information is that described each cooperative base station is made according to described cooperative base station information table and self-condition;
Determine update module, be used for the feedback information according to described each cooperative base station, definite cooperative base station that can participate in cooperating is upgraded described cooperative base station information table;
The second sending module, the cooperative base station information table after being used for upgrading sends to the described cooperative base station that can participate in cooperating.
The embodiment of the invention provides a kind of cooperation multi-input multi-output system, comprises at least one terminal, the affiliated base station of described terminal and at least one cooperative base station,
Described terminal for the cooperative base station information of each the described cooperative base station that will select, sends to the affiliated base station of described terminal;
The affiliated base station of described terminal is used for according to described cooperative base station information, makes up the cooperative base station information table corresponding with described terminal; Described cooperative base station information table is sent to each cooperative base station that described terminal is selected; Receive the feedback information of described each cooperative base station, whether described feedback information is used for identifying described each cooperative base station can participate in cooperation; According to the feedback information of described each cooperative base station, definite cooperative base station that can participate in cooperating is upgraded described cooperative base station information table, and the cooperative base station information table after upgrading is sent to the described cooperative base station that can participate in cooperating;
Described cooperative base station, be used for receiving described cooperative base station information table, determine whether participate in cooperation according to described cooperative base station information table, self channel conditions and surrounding resources distribution condition, and determination result is fed back to the affiliated base station of described terminal with the form of feedback information.
The embodiment of the invention is by above technical scheme, by the cooperative base station information architecture cooperative base station information table according to user feedback, and upgrade the cooperative base station information table according to the feedback information of cooperative base station, for participating in as the user provides between the relevant base station of collaboration services interactive information and coordinates resource, provide a kind of than more efficient and reliable mode.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The cooperation MIMO system schematic diagram that Fig. 1 embodiment of the invention provides;
The dynamic cooperative flow chart that the user that Fig. 2 embodiment of the invention provides drives;
The dynamic connection method flow chart of a kind of base station collaboration that Fig. 3 embodiment of the invention provides;
The dynamic connection method flow chart of a kind of base station collaboration that Fig. 4 embodiment of the invention provides;
The dynamic connection method flow chart of a kind of base station collaboration that Fig. 5 embodiment of the invention provides;
A kind of architecture of base station figure that Fig. 6 embodiment of the invention provides;
A kind of architecture of base station figure that Fig. 7 embodiment of the invention provides;
A kind of cooperation MIMO system schematic diagram that Fig. 8 embodiment of the invention provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Fig. 1 is the Co-MIMO general system model schematic diagram that the embodiment of the invention provides.As shown in Figure 1, in the Co-MIMO system, what a plurality of base stations cooperated simultaneously provides communication service for a plurality of portable terminals.For making the technical scheme that the embodiment of the invention provides of understanding that persons skilled in the art can be more directly perceived and vivid, in Co-MIMO system shown in Figure 1, do an introduction by the dynamic cooperative flow process that the user drives.
Fig. 2 is the dynamic cooperative flow chart that the user that provides of the embodiment of the invention drives.As shown in Figure 2, the dynamic cooperative flow process of user's driving comprises:
S10, the user accesses cellular network, is chosen to be the dominant base of its service, i.e. base station under the user.
In the present embodiment, after the user accesses cellular network, according to application business and oneself communication conditions and demand, can select a cellular cell, when this cellular cell has a base station, this base station in this cellular cell of user selection is exactly user's dominant base, also is called base station under the user, in following examples of the present invention, the implication of dominant base is all like this.When this cellular cell had a plurality of base station, determining of dominant base was identical with definite mode of base station, user place in the existing cellular network, just repeats no more at this.
S20, dominant base inform this user's class of service and corresponding QoS;
Behind the selected dominant base of user, dominant base can be informed this user's class of service and corresponding these users' of QoS business demand.
S30, the user is according to oneself communication conditions and the business demand cooperative base station that is chosen as its service;
S40, the mutual interactive information in selected base station is also coordinated the cooperation resource;
S50, the one or more base stations that resource can be provided for the user in the selected base station are for the user provides collaboration services.
By the description of the above dynamic cooperative flow process that the user is driven, the dynamic cooperative flow process that drives of user mainly comprises following three large steps as can be known:
1) user access network, application (or acceptance) business, and the user is chosen as the base station of its service according to oneself communication conditions and demand;
2) the mutual interactive information in selected base station, and coordinate the cooperation resource;
3) the one or more base stations that resource can be provided for the user in the selected base station are for the user provides collaboration services.
The embodiment of the invention is exactly to go fixed dynamic cooperative process mainly for above-mentioned First and second step user, and a kind of dynamic connection method of base station collaboration is provided, and is mutual interactive information between the base station and coordination cooperation resource.
As shown in Figure 3, the embodiment of the invention provides a kind of dynamic connection method of base station collaboration, and the method is applied in as shown in Figure 2 the cooperation MIMO system or other communication system, and such as MIMO-OFDM system, LTE system or WiMAX system etc., the method comprises:
S101 according to the cooperative base station information of user feedback, makes up the cooperative base station information table corresponding with this user;
By the flow process among Fig. 2 as can be known, select the affiliated base station of oneself the user after, user's downlink business and relevant QoS demand can be informed in the base station under the user, and the user just can judge whether to need other base station that collaboration services is provided like this, to satisfy the QoS demand of such downlink business.After the user need to determine other base station that collaboration services is provided, can be according to predefined criterion, selection can provide the cooperative base station of collaboration services, and the information of these cooperative base station is fed back to base station under it.
After the base station receives the information of these cooperative base station of user feedback under the user, can be according to cooperative base station information table of these information architectures.
S102 sends to the cooperative base station information table each cooperative base station of user feedback;
After cooperative base station information table structure was finished, the base station can be with this cooperative base station information table under the user, each cooperative base station of user feedback before sending to.
S103, whether the feedback information of each cooperative base station of reception user feedback, this feedback information are used for each cooperative base station of sign can participate in cooperation;
After each cooperative base station of user feedback receives the cooperative base station information table, each cooperative base station can determine whether participating in cooperation according to self channel conditions and surrounding resources distribution condition, and determination result is fed back to base station under the user in the mode of feedback information.
S104 according to the feedback information of each cooperative base station of user feedback, determines the cooperative base station that can participate in cooperating, and upgrades the cooperative base station information table, and the cooperative base station information table after upgrading is sent to the cooperative base station that can participate in cooperating.
After the feedback information of each cooperative base station is received in the base station under the user, determine to participate in the base station of cooperation according to feedback information, and upgrade the cooperative base station information table, the final cooperative base station information table after will upgrading at last sends to the base station that participates in cooperation.
The embodiment of the invention is by above technical scheme, by the cooperative base station information architecture cooperative base station information table according to user feedback, and upgrade the cooperative base station information table according to the feedback information of cooperative base station, for participating in as the user provides between the relevant base station of collaboration services interactive information and coordinates resource, provide a kind of than more efficient and reliable mode.
As shown in Figure 4, the embodiment of the invention provides a kind of dynamic connection method of base station collaboration, and the method is applied in as shown in Figure 2 the cooperation MIMO system or other communication system, and such as MIMO-OFDM system, LTE system or WiMAX system etc., the method comprises:
S110, the downlink business classification and relevant QoS demand of informing the user, this downlink business classification is used for making the user need judge whether other base station that collaboration services is provided with relevant QoS demand;
The dynamic cooperative flow process that the user who provides according to Fig. 2 drives after the user accesses cellular network, can be chosen as the dominant base of its service as can be known, i.e. base station under the user.
Select the affiliated base station of oneself the user after, user's downlink business and relevant QoS demand can be informed in the base station under the user, and the user just can judge whether to need other base station that collaboration services is provided like this, to satisfy the QoS demand of such downlink business.
If the user need to determine other base station that collaboration services is provided, then in one embodiment, the user can detect by the signal strength signal intensity that receives or the information such as channel quality or signal to noise ratio or Signal to Interference plus Noise Ratio can provide the base station of collaboration services at present, and judges whether the cooperative gain between itself and these base station reaches predefined cooperative gain threshold value; If can provide the cooperative gain of base station of collaboration services greater than the cooperative gain threshold value, then it being classified as can be the cooperative base station of this user collaboration service; In one embodiment, the cooperative gain between user and certain base station can recently quantize with the noise of user side, can also recently quantize with the letter drying of user side in another embodiment, can also quantize with channel quality in another embodiment.
After the user finishes judgement, with the information of the cooperative base station of all provided collaboration services of selecting, send to base station under the user.
Need to prove, in one embodiment, if the user determines not need other base station that collaboration services is provided, then follow-up of user with its under the base station communicate.
S120, the information of the cooperative base station of the provided collaboration services of reception user feedback according to this information, makes up the cooperative base station information table;
After the base station receives the information of these cooperative base station of user feedback under the user, can be according to cooperative base station information table of these information architectures.
In one embodiment, the user's that each base station is served for it cooperative base station information table can comprise following main contents:
1) user's of initiation cooperation request information;
2) the cellular cell information at this user place, i.e. base station information under this user;
2) participation provides the base station information of collaboration services for this user.
In one embodiment, supposing the system has two users that initiate cooperation, so can be as shown in Table 1 and Table 2 about this two users' cooperative base station information table:
| Initiate the user profile of cooperation request | Base station information under the user | The base station information of collaboration services is provided for the user |
| The user 1 | Base station 3 | Base station 1, base station 2, base station 3 |
Table 1 is about user 1 cooperative base station information table
| Initiate the user profile of cooperation request | Base station information under the user | The base station information of collaboration services is provided for the user |
| The user 2 | Base station 7 | Base station 2, base station 4 |
Table 2 is about user 2 cooperative base station information table
Certainly in other embodiments, system may also have the user of 3 or more multiple cooperations, and is about the structure of these users' cooperative base station information table, similar with table 1 and table 2 so.
Need to prove that base station 2 is arranged in table 1 and the table 2, the described base station 3 of the user of table 1 also is the base station that collaboration services is provided for the user, and this illustrates that same base station can participate in a plurality of cooperation set simultaneously, namely can a plurality of users of collaboration services.
S130 sends to the cooperative base station information table each cooperative base station of user feedback;
After cooperative base station information table structure is finished, the base station can be with this cooperative base station information table under the user, each cooperative base station of user feedback before sending to that is to say, the base station can send to relevant base station with all users' of its service cooperative base station information table under the user.As in one embodiment, after base station under the user had made up the cooperative base station information table, according to the information in the table 1, for user 1, affiliated base station of the user 1 (base station 3) can feed back to base station 1 with table 1, base station 2 and base station 3.According to the information in the table 2, for user 2, affiliated base station of the user 2 (base station 7) can feed back to base station 2 and base station 4 with table 2.
After each cooperative base station is received the cooperative base station information table that sends the affiliated base station of user, can determine whether participating in cooperation according to the information in the cooperative base station information table and self channel conditions, and determination result is fed back to base station under the user in the mode of feedback information.
In one embodiment, describe as an example of table 1 example, base station 1, base station 2 and base station 3 receive user 1 described base station (base station 3), behind the table 1 that sends, base station 1 according to table 1 can learn own may be for user 1 provides cooperation, and can know to also have base station 2 and base station 3 also may provide cooperation for user 1 together with oneself according to table 1.At this moment, base station 1 will be according to the situation of self and the channel conditions between own and user, perhaps also might be according to channel conditions and the resource allocation conditions between own and base station 2 and the base station 3, decide and oneself whether participate in cooperation, perhaps according to self situation and the channel conditions between own and user and and base station 2 and base station 3 between channel conditions and resource allocation conditions, determine oneself whether to participate in cooperation, and determination result is fed back to base station under the user in the mode of feedback information.More vivid, if in one embodiment, channel conditions between base station 1 and the user 1 is good, channel conditions between base station 1 and base station 2 and the base station 3 is also good, but base station 1 self duty ratio is more serious, base station 1 just may determine not participate in cooperating for user 1 in this case so.Decision process about base station 2 and base station 3 is similar, repeats no more.
S140 receives the feedback information of each cooperative base station, and whether this feedback information is used for each cooperative base station of sign can participate in cooperation;
S150 according to the feedback information of each cooperative base station, determines to participate in the base station of cooperation, upgrades the cooperative base station information table, and the cooperative base station information table after upgrading is sent to the base station that participates in cooperation.
After the feedback information of each cooperative base station is received in the base station under the user, determine to participate in the base station of cooperation according to feedback information, and upgrade the cooperative base station information table, the final cooperative base station information table after will upgrading at last sends to the base station that participates in cooperation.
Such as, in one embodiment, according to the information shown in the table 1, for user 1, base station 1, base station 2 and base station 3 understand according to self channel conditions and surrounding resources distribution condition determining whether participating in cooperation after receiving the cooperative information table that base station 3 sends.Suppose in one embodiment, base station 1 and base station 2 determine to cooperate, and base station 3 determines not participate in cooperation, the base station 1 so, base station 2 and base station 3 feed back to base station 3 with the determination result of oneself, and the cooperative base station information table is upgraded according to feedback result in base station 3, namely remove base station 3 on this hurdle of base station information that collaboration services is provided for the user, and the cooperative base station information table after will upgrading sends to base station 1 and base station 2.After selected final cooperative base station, these cooperative base station will provide collaboration services for the user like this.
In one embodiment, if the base station is according to the feedback information that receives under the user, after learning that certain cooperative base station determines to participate in cooperation, the base station also needs to determine collaboration communication mode that this user is adopted under the user, thereby satisfies the required QoS demand of this customer service; If after the affiliated base station of user according to the feedback information that receives, learnt that certain cooperative base station determines not participate in cooperation, under the user should stagger this base station and this user on frequency or time resource in the base station, to avoid producing large interference.
Need to prove that cooperation mode above-mentioned includes but are not limited to multi-user Cooperation precoding, the cooperation precoding of alone family, multi-user Cooperation Space Time Coding, alone family cooperation Space Time Coding etc.
The embodiment of the invention is by above technical scheme, by the cooperative base station information architecture cooperative base station information table according to user feedback, and upgrade the cooperative base station information table according to the feedback information of cooperative base station, for participating in as the user provides between the relevant base station of collaboration services interactive information and coordinates resource, provide a kind of than more efficient and reliable mode.
The below describes the technical scheme that the embodiment of the invention provides with user and the mutual angle of base station bilateral.As shown in Figure 5, the embodiment of the invention provides a kind of dynamic connection method of base station collaboration, and the method is applied in as shown in Figure 2 the cooperation MIMO system or other communication system, and such as MIMO-OFDM system, LTE system or WiMAX system etc., the method comprises:
The user is informed in the base station under the S210, user downlink business classification and relevant QoS demand, this downlink business classification is used for making the user need judge whether other base station that collaboration services is provided with relevant QoS demand;
S220, user need to judge whether other base station that collaboration services is provided, to satisfy the QoS demand of this downlink business;
If do not need other base station that collaboration services is provided, then the user only with its under the base station communicate, if need its base station that collaboration services is provided, execution in step S230 then.
S230, user detect the base station that collaboration services can be provided at present, and judge whether it reaches predefined cooperative gain threshold value; If can provide the cooperative gain of base station of collaboration services greater than the cooperative gain threshold value, then it being classified as can be the cooperative base station of this user collaboration service;
In one embodiment, if the user need to determine other base station that collaboration services is provided, then in one embodiment, the user can detect by the signal strength signal intensity that receives or the information such as channel quality or signal to noise ratio or Signal to Interference plus Noise Ratio can provide the base station of collaboration services at present, and judges whether the cooperative gain between itself and these base station reaches predefined cooperative gain threshold value; If can provide the cooperative gain of base station of collaboration services greater than the cooperative gain threshold value, then it being classified as can be the cooperative base station of this user collaboration service; In one embodiment, the cooperative gain between user and certain base station can recently quantize with the noise of user side, can also recently quantize with the letter drying of user side in another embodiment, can also quantize with channel quality in another embodiment.
S240, after step S230 finished, the information of the cooperative base station of all provided collaboration services that the user will select sent to the affiliated base station of user;
The information of the cooperative base station of the provided collaboration services of base station reception user feedback according to this information, makes up the cooperative base station information table corresponding with this user under the S250, user;
The cooperative base station information table corresponding with the user in one embodiment can be as described in Table 1, in one embodiment can be as described in Table 2, do not repeat them here.
The base station sends to the cooperative base station information table each cooperative base station of user feedback under the S260, user;
After cooperative base station information table structure is finished, the base station can be with this cooperative base station information table under the user, each cooperative base station of user feedback before sending to that is to say, the base station can send to relevant base station with all users' of its service cooperative base station information table under the user.As in one embodiment, after base station under the user had made up the cooperative base station information table, according to the information in the table 1, for user 1, affiliated base station of the user 1 (base station 3) can feed back to base station 1 with table 1, base station 2 and base station 3.According to the information in the table 2, for user 2, affiliated base station of the user 2 (base station 7) can feed back to base station 2 and base station 4 with table 2.
S270, each cooperative base station receives the cooperative base station information table that send the affiliated base station of user, can determine whether participating in cooperation according to the information in the cooperative base station information table and self channel conditions, and determination result is fed back to base station under the user in the mode of feedback information.
In one embodiment, describe as an example of table 1 example, base station 1, base station 2 and base station 3 receive user 1 described base station (base station 3), behind the table 1 that sends, base station 1 according to table 1 can learn own may be for user 1 provides cooperation, and can know to also have base station 2 and base station 3 also may provide cooperation for user 1 together with oneself according to table 1.At this moment, base station 1 will be according to the situation of self and the channel conditions between own and user, perhaps also might be according to channel conditions and the resource allocation conditions between own and base station 2 and the base station 3, decide oneself whether to participate in cooperation, and determination result is fed back to base station under the user in the mode of feedback information.
The base station receives the feedback information of each cooperative base station under the S280, user, and whether this feedback information is used for each cooperative base station of sign can participate in cooperation;
The base station of cooperation is determined to participate in according to the feedback information of each cooperative base station in the base station under the S290, user, upgrades the cooperative base station information table, and the cooperative base station information table after upgrading is sent to the base station that participates in cooperation.
In one embodiment, if the base station is according to the feedback information that receives under the user, after learning that certain cooperative base station determines to participate in cooperation, the base station also needs to determine collaboration communication mode that this user is adopted under the user, thereby satisfies the required QoS demand of this customer service; If after the affiliated base station of user according to the feedback information that receives, learnt that certain cooperative base station determines not participate in cooperation, under the user should stagger this base station and this user on frequency or time resource in the base station, to avoid producing large interference.
Need to prove that cooperation mode above-mentioned includes but are not limited to multi-user Cooperation precoding, the cooperation precoding of alone family, multi-user Cooperation Space Time Coding, alone family cooperation Space Time Coding etc.
The embodiment of the invention is by above technical scheme, by the cooperative base station information architecture cooperative base station information table according to user feedback, and upgrade the cooperative base station information table according to the feedback information of cooperative base station, for participating in as the user provides between the relevant base station of collaboration services interactive information and coordinates resource, provide a kind of than more efficient and reliable mode.
As shown in Figure 6, the embodiment of the invention provides a kind of base station, and this base station comprises:
Make up module 310, be used for the cooperative base station information according to user feedback, make up the cooperative base station information table corresponding with this user;
By the flow process among Fig. 2 as can be known, select the affiliated base station of oneself the user after, user's downlink business and relevant QoS demand can be informed in the base station under the user, and the user just can judge whether to need other base station that collaboration services is provided like this, to satisfy the QoS demand of such downlink business.After the user need to determine other base station that collaboration services is provided, can be according to predefined criterion, selection can provide the cooperative base station of collaboration services, and the information of these cooperative base station is fed back to base station under it.
After the base station received the information of these cooperative base station of user feedback under the user, making up module 310 can be according to cooperative base station information table of these information architectures.
In one embodiment, the cooperative base station information table can comprise following main contents:
1) user's of initiation cooperation request information;
2) the cellular cell information at this user place, i.e. base station information under this user;
2) participation provides the base station information of collaboration services for this user.
In one embodiment, the cooperative base station information table can as in the previous examples table 1 or table 2 shown in.
The first sending module 320 is for each cooperative base station that the cooperative base station information table is sent to user feedback;
After structure module 310 had made up the cooperative base station information table, the first sending module 320 can be with this cooperative base station information table, each cooperative base station of user feedback before sending to.
After cooperative base station information table structure is finished, the first sending module 320 of base station can be with this cooperative base station information table under the user, each cooperative base station of user feedback before sending to, that is to say, the first sending module 320 meetings of base station send to relevant base station with all users' of its service cooperative base station information table under the user.As in one embodiment, after base station under the user had made up the cooperative base station information table, according to the information in the table 1, for user 1, affiliated base station of the user 1 (base station 3) can feed back to base station 1 with table 1, base station 2 and base station 3.According to the information in the table 2, for user 2, affiliated base station of the user 2 (base station 7) can feed back to base station 2 and base station 4 with table 2.
After each cooperative base station of user feedback receives the cooperative base station information table, can determine whether participating in cooperation according to self channel conditions and surrounding resources distribution condition, and determination result be fed back to the receiver module 330 of base station under the user in the mode of feedback information.
Determine update module 340, be used for the feedback information according to each cooperative base station, determine to participate in the base station of cooperation, upgrade the cooperative base station information table;
After the feedback information of each cooperative base station is received in the base station under the user, determine to participate in the base station of cooperation according to feedback information, upgrade the cooperative base station information table, the information that is about to determine not participate in the cooperative base station that cooperates is deleted from the cooperative base station information table.
The second sending module 350, the cooperative base station information table after being used for upgrading sends to the base station that participates in cooperation.
The embodiment of the invention is by above technical scheme, by the cooperative base station information architecture cooperative base station information table according to user feedback, and upgrade the cooperative base station information table according to the feedback information of cooperative base station, for participating in as the user provides between the relevant base station of collaboration services interactive information and coordinates resource, provide a kind of than more efficient and reliable mode.
As shown in Figure 7, in one embodiment, the base station that Fig. 5 is corresponding can also comprise:
Inform module 300, for the downlink business classification and relevant QoS demand of informing the user, this downlink business classification is used for making the user need judge whether other base station that collaboration services is provided with relevant QoS demand.；
By the flow process among Fig. 2 as can be known, select the affiliated base station of oneself the user after, user's downlink business and relevant QoS demand can be informed in the base station under the user, and the user just can judge whether to need other base station that collaboration services is provided like this, to satisfy the QoS demand of such downlink business.After the user need to determine other base station that collaboration services is provided, can be according to predefined criterion, selection can provide the cooperative base station of collaboration services, and the information of these cooperative base station is fed back to base station under it.
The embodiment of the invention is by above technical scheme, by the cooperative base station information architecture cooperative base station information table according to user feedback, and upgrade the cooperative base station information table according to the feedback information of cooperative base station, for participating in as the user provides between the relevant base station of collaboration services interactive information and coordinates resource, provide a kind of than more efficient and reliable mode.
As shown in Figure 8, the embodiment of the invention provides a kind of cooperation multi-input multi-output system, i.e. Co-MIMO system comprises:
At least one terminal 10, the affiliated base station 20 of terminal 10 and at least one cooperative base station 30,
The information of the cooperative base station 30 of all the provided collaboration services that will select is provided terminal 10, sends to the affiliated base station 20 of terminal 10;
In another embodiment, before the information of the cooperative base station 30 of all provided collaboration services that terminal 10 will be selected sent to described base station 20, terminal 10 also was used for,
Detect and to provide the base station of collaboration services at present, and judge whether it reaches predefined cooperative gain threshold value; If can provide the cooperative gain of base station of collaboration services greater than the cooperative gain threshold value, then it being classified as can be the cooperative base station 30 of this user collaboration service.
In one embodiment, terminal 10 can by signal strength signal intensity or channel quality information or the information such as signal to noise ratio or Signal to Interference plus Noise Ratio that receive, detect the base station that collaboration services can be provided at present.
Under base station 20, be used for the information according to the cooperative base station 30 of terminal 10 feedbacks, make up the cooperative base station information table corresponding with terminal 10; The cooperative base station information table is sent to each cooperative base station 30 of user feedback; Receive the feedback information of each cooperative base station 30, whether this feedback information is used for sign cooperative base station 30 can participate in cooperation; According to feedback information, determine to participate in the base station of cooperation, upgrade the cooperative base station information table, the cooperative base station information table after upgrading is sent to the base station that participates in cooperation.
In one embodiment, affiliated base station 20 can also be for informing its downlink business classification and relevant QoS demand to terminal 10, and this downlink business classification is used for making terminal 10 need judge whether other base station that collaboration services is provided with relevant QoS demand.
In one embodiment, the cooperative base station information table can comprise following main contents:
1) user's of initiation cooperation request information;
2) the cellular cell information at this user place, i.e. base station information under this user;
2) participation provides the base station information of collaboration services for this user.
In one embodiment, shown in the cooperative base station information table can be as in the previous examples the table 1 or mark.
In another embodiment, if cooperative base station 30 determines to participate in cooperation, the cooperative base station information table after the renewal that base station 10 sends under then will receiving is for terminal 10 provides collaboration services.
In one embodiment, the concrete structure of affiliated base station 20 and function can be moulded such as embodiment corresponding to Fig. 6, in another embodiment can also be as described in embodiment corresponding to Fig. 7.
The embodiment of the invention is by above technical scheme, by the cooperative base station information architecture cooperative base station information table according to user feedback, and upgrade the cooperative base station information table according to the feedback information of cooperative base station, for participating in as the user provides between the relevant base station of collaboration services interactive information and coordinates resource, provide a kind of than more efficient and reliable mode.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in above-described embodiment method, to come the relevant hardware of instruction to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process such as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.
The above only is several embodiments of the present invention, and those skilled in the art can carry out various changes or modification to the present invention and do not break away from the spirit and scope of the present invention according to application documents are disclosed.
Claims (8)
1. the dynamic connection method of a base station collaboration is characterized in that, comprising:
Inform user's downlink business classification and relevant QoS demand, described downlink business classification is used for making described user need judge whether the base station that collaboration services is provided with described relevant QoS demand, to satisfy the relevant QoS demand of described downlink business classification;
According to the cooperative base station information of user feedback, make up the cooperative base station information table corresponding with described user;
Described cooperative base station information table is sent to each cooperative base station of user feedback, described cooperative base station information table is for user profile and other cooperative base station information of informing that described each cooperative base station need to cooperate;
Receive the feedback information of described each cooperative base station, whether described feedback information is used for identifying described each cooperative base station can participate in cooperation, and described feedback information is that described each cooperative base station is made according to described cooperative base station information table and self-condition;
According to the feedback information of described each cooperative base station, definite cooperative base station that can participate in cooperating is upgraded described cooperative base station information table, and the cooperative base station information table after upgrading is sent to the described cooperative base station that can participate in cooperating.
2. the dynamic connection method of base station collaboration as claimed in claim 1 is characterized in that, described cooperative base station information table comprises:
Described user's information, the information of the information of the cellular cell at described user place and each cooperative base station of described user feedback.
3. the dynamic connection method of base station collaboration as claimed in claim 1 is characterized in that, after the described cooperative base station of determining to participate in cooperating, also comprises:
Determine that the described cooperative base station that can participate in cooperating is to described user's cooperation mode.
4. a base station is characterized in that, comprising:
Inform module, for the downlink business classification and relevant QoS demand of informing the user, described downlink business classification is used for making described user need judge whether the base station that collaboration services is provided with described relevant QoS demand, to satisfy the relevant QoS demand of described downlink business classification;
Make up module, be used for the cooperative base station information according to user feedback, make up the cooperative base station information table corresponding with described user;
The first sending module, for each cooperative base station that described cooperative base station information table is sent to user feedback, described cooperative base station information table is for user profile and other cooperative base station information of informing that described each cooperative base station need to cooperate;
Receiver module, be used for receiving the feedback information of described each cooperative base station, whether described feedback information is used for identifying described each cooperative base station can participate in cooperation, and described feedback information is that described each cooperative base station is made according to described cooperative base station information table and self-condition;
Determine update module, be used for the feedback information according to described each cooperative base station, definite cooperative base station that can participate in cooperating is upgraded described cooperative base station information table;
The second sending module, the cooperative base station information table after being used for upgrading sends to the described cooperative base station that can participate in cooperating.
5. base station as claimed in claim 4 is characterized in that, described cooperative base station information table comprises:
Described user's information, the information of the information of the cellular cell at described user place and each cooperative base station of described user feedback.
6. a cooperation multi-input multi-output system comprises at least one terminal, and the affiliated base station of described terminal and at least one cooperative base station is characterized in that,
Described terminal for the cooperative base station information of each the described cooperative base station that will select, sends to the affiliated base station of described terminal;
The affiliated base station of described terminal, for the downlink business classification and relevant QoS demand of informing described terminal, whether described downlink business classification is used for making described terminal judges need the base station that collaboration services is provided with described relevant QoS demand; According to described cooperative base station information, make up the cooperative base station information table corresponding with described terminal; Described cooperative base station information table is sent to each cooperative base station that described terminal is selected; Receive the feedback information of described each cooperative base station, whether described feedback information is used for identifying described each cooperative base station can participate in cooperation; According to the feedback information of described each cooperative base station, definite cooperative base station that can participate in cooperating is upgraded described cooperative base station information table, and the cooperative base station information table after upgrading is sent to the described cooperative base station that can participate in cooperating;
Described cooperative base station is used for receiving described cooperative base station information table, determines whether participate in cooperation according to described cooperative base station information table and self channel conditions, and determination result is fed back to the affiliated base station of described terminal with the form of feedback information.
7. system as claimed in claim 6 is characterized in that, after the cooperative base station that the affiliated base station of described terminal is determined to participate in cooperating, also be used for,
Determine that the described cooperative base station that can participate in cooperating is to the cooperation mode of described terminal.
8. system as claimed in claim 6 is characterized in that, described terminal sends to before the affiliated base station of described terminal in the cooperative base station information of each the described cooperative base station that will select, also be used for,
Detection can provide the base station of collaboration services, and judges whether the cooperative gain of described base station reaches predefined cooperative gain threshold value; If the cooperative gain of described base station greater than the cooperative gain threshold value, then classifies as described cooperative base station with described base station.
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