CN101998669A - 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
- Publication number
- CN101998669A CN101998669A CN2009101896167A CN200910189616A CN101998669A CN 101998669 A CN101998669 A CN 101998669A CN 2009101896167 A CN2009101896167 A CN 2009101896167A CN 200910189616 A CN200910189616 A CN 200910189616A CN 101998669 A CN101998669 A CN 101998669A
- Authority
- CN
- China
- Prior art keywords
- base station
- cooperative base
- cooperative
- user
- information
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
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 Mobile Telecommunications-Advanced, senior international mobile communication) standard.In the cellular system of channeling, presence of intercell interference has become the principal element of restriction mobile communication performance in global scope, and the basic thought of Co-MIMO then is to coordinate a plurality of signal of base station transmission, to alleviate inter-cell interference.In the Co-MIMO system, (Base Station, what BS) will cooperate simultaneously is that (Mobile Station MS) provides communication service to a plurality of users in a plurality of base stations.
The base station collaboration technology is a key technology in the Co-MIMO system, adopts the base station collaboration technology to replace traditional resource contention pattern in the cooperate mode of shared resource of multi-user, promotes the capacity of whole system and increases the reliability of link.Existing base station collaboration mode mainly comprises two classes: the cooperation that 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 then is meant the cooperation of user according to the situation application base station of oneself.Corresponding existing cooperation framework also comprises two classes: static cooperation and dynamic cooperative.The former is meant and delimit the cooperation scope on the region, and the base station resource of cooperation is provided.The latter then is meant according to the variation or the business demand of concrete environment and dynamically adjusts the cooperation scope, and the base station resource and the clear and definite collaboration object of cooperation are provided.
In the dynamic cooperative framework, because its reasonability and flexibility to resource allocation and utilization, Co-MIMO system research and key in application framework have been become gradually, and how under the framework of dynamic cooperative, make cooperative base station realize effectively connecting, promptly 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, provide a kind of than more efficient and mode reliably to the user provides between the relevant base station of collaboration services interactive information and coordinates resource.
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, and described cooperative base station information table is used to inform that described each cooperative base station needs users in collaboration information and other cooperative base station information;
Receive the feedback information of described each cooperative base station, whether described feedback information is used to identify 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 cooperative base station information, make up the cooperative base station information table corresponding with described user according to user feedback;
First sending module is used for described cooperative base station information table is sent to each cooperative base station of user feedback, and described cooperative base station information table is used to inform that described each cooperative base station needs users in collaboration information and other cooperative base station information;
Receiver module, be used to receive the feedback information of described each cooperative base station, whether described feedback information is used to identify 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;
Second sending module is used for 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 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 is used 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 to identify 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 to receive described cooperative base station information table, whether participate in cooperation according to described cooperative base station information table, self channel conditions and the decision of 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 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, provide a kind of than more efficient and mode reliably to the user provides between the relevant base station of collaboration services interactive information and coordinates resource.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The cooperation MIMO system schematic diagram that Fig. 1 embodiment of the invention provides;
User's Driven Dynamic collaboration process figure that Fig. 2 embodiment of the invention provides;
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 is obtained under the creative work prerequisite.
Fig. 1 is the Co-MIMO general-purpose system model schematic diagram that the embodiment of the invention provides.As shown in Figure 1, in the Co-MIMO system, what cooperated simultaneously in a plurality of base stations 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 user's Driven Dynamic collaboration process.
Fig. 2 is user's Driven Dynamic collaboration process figure that the embodiment of the invention provides.As shown in Figure 2, user's Driven Dynamic collaboration process comprises:
S10, the user inserts 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 inserts 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 that the user selects is exactly user's a 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 above description to user's Driven Dynamic collaboration process, user's Driven Dynamic collaboration process mainly comprises following three big steps as can be known:
1) user access network, application (or acceptance) business, and the user is chosen as its serving base station 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 be primarily aimed at above-mentioned first one and the second step user to go fixed dynamic cooperative process, and a kind of dynamic connection method of base station collaboration is provided, and is between the base station mutually interactive information and coordinates the 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 as MIMO-OFDM system, LTE system or WiMAX system etc., this 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 gives base station under it with the feedback information of these cooperative base station.
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, the feedback information of each cooperative base station of reception user feedback, whether this feedback information is used to identify each cooperative base station 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 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, provide a kind of than more efficient and mode reliably to the user provides between the relevant base station of collaboration services interactive information and coordinates resource.
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 as MIMO-OFDM system, LTE system or WiMAX system etc., this method comprises:
S110, the downlink business classification and relevant QoS demand of informing the user, this downlink business classification is used to make the user need to judge whether other base station that collaboration services is provided with relevant QoS demand;
The user's Driven Dynamic collaboration process that provides according to Fig. 2 after the user inserts 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 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 it can be the cooperative base station of this user collaboration service that the cooperative gain of base station that collaboration services can be provided greater than the cooperative gain threshold value, then classifies as it; 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,, send to base station under the user with the information of the cooperative base station of all provided collaboration services of selecting.
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) information of initiation cooperation requesting users;
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 to initiate users in collaboration, so can be as shown in Table 1 and Table 2 about this two users' cooperative base station information table:
| Initiate the cooperation requested user | 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 cooperation requested user | 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 3 or more multiple users in collaboration, 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 all 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, promptly 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, with table 1 is that example describes, 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 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 to identify each cooperative base station 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 decisions are cooperated, and base station 3 decisions do 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, promptly remove base station 3, and the cooperative base station information table after will upgrading sends to base station 1 and base station 2 on this hurdle of base station information that collaboration services is provided for the user.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 the decision of certain cooperative base station participates 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, learnt that certain cooperative base station decision does not participate in cooperation according to the feedback information that receives, under the user should stagger this base station and this user on frequency or time resource in the base station, to avoid producing big interference.
Need to prove that cooperation mode above-mentioned includes but are not limited to multi-user cooperate precoding, single user collaboration precoding, multi-user cooperate Space Time Coding, single user collaboration Space Time Coding etc.
The embodiment of the invention is by above technical scheme, by 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, provide a kind of than more efficient and mode reliably to the user provides between the relevant base station of collaboration services interactive information and coordinates resource.
With user and the mutual angle of base station bilateral, the technical scheme that the embodiment of the invention provides is described below.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 as MIMO-OFDM system, LTE system or WiMAX system etc., this 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 to make the user need to 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 it can be the cooperative base station of this user collaboration service that the cooperative gain of base station that collaboration services can be provided greater than the cooperative gain threshold value, then classifies as it;
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 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 it can be the cooperative base station of this user collaboration service that the cooperative gain of base station that collaboration services can be provided greater than the cooperative gain threshold value, then classifies as it; 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, with table 1 is that example describes, 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 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 to identify each cooperative base station 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 the decision of certain cooperative base station participates 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, learnt that certain cooperative base station decision does not participate in cooperation according to the feedback information that receives, under the user should stagger this base station and this user on frequency or time resource in the base station, to avoid producing big interference.
Need to prove that cooperation mode above-mentioned includes but are not limited to multi-user cooperate precoding, single user collaboration precoding, multi-user cooperate Space Time Coding, single user collaboration Space Time Coding etc.
The embodiment of the invention is by above technical scheme, by 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, provide a kind of than more efficient and mode reliably to the user provides between the relevant base station of collaboration services interactive information and coordinates resource.
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 cooperative base station information, make up the cooperative base station information table corresponding with this user according to user feedback;
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 gives base station under it with the feedback information of these cooperative base station.
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) information of initiation cooperation requesting users;
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.
First sending module 320 is used for the cooperative base station information table is sent to each cooperative base station of user feedback;
After structure module 310 had made up the cooperative base station information table, 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, 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 that 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 feedback information, determine to participate in the base station of cooperation, upgrade the cooperative base station information table according to each cooperative base station;
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, upgrade the cooperative base station information table, be about to the information that decision do not participate in the cooperative base station of cooperating and from the cooperative base station information table, delete according to feedback information.
The embodiment of the invention is by above technical scheme, by 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, provide a kind of than more efficient and mode reliably to the user provides between the relevant base station of collaboration services interactive information and coordinates resource.
As shown in Figure 7, in one embodiment, the base station of Fig. 5 correspondence can also comprise:
Inform module 300, be used to inform user's downlink business classification and relevant QoS demand, this downlink business classification is used to make the user need to 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 gives base station under it with the feedback information of these cooperative base station.
The embodiment of the invention is by above technical scheme, by 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, provide a kind of than more efficient and mode reliably to the user provides between the relevant base station of collaboration services interactive information and coordinates resource.
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 it can be the cooperative base station 30 of this user collaboration service that the cooperative gain of base station that collaboration services can be provided greater than the cooperative gain threshold value, then classifies as it.
In one embodiment, terminal 10 can detect the base station that collaboration services can be provided at present 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.
Under base station 20, be used for information according to the cooperative base station 30 of terminal 10 feedback, 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 to identify 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 used for informing its downlink business classification and relevant QoS demand to terminal 10 that this downlink business classification is used to make terminal 10 need to 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) information of initiation cooperation requesting users;
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 table 1 that the cooperative base station information table can be as in the previous examples or the mark.
In another embodiment, if cooperative base station 30 decisions 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 as the embodiment of Fig. 6 correspondence, in another embodiment can also be as described in the embodiment of Fig. 7 correspondence.
The embodiment of the invention is by above technical scheme, by 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, provide a kind of than more efficient and mode reliably to the user provides between the relevant base station of collaboration services interactive information and coordinates resource.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method, be to instruct relevant hardware to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at 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 (11)
1. the dynamic connection method of a base station collaboration is characterized in that, 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, and described cooperative base station information table is used to inform that described each cooperative base station needs users in collaboration information and other cooperative base station information;
Receive the feedback information of described each cooperative base station, whether described feedback information is used to identify 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, in described cooperative base station information according to user feedback, makes up before the cooperative base station information table corresponding with described user, also comprises:
Inform user's downlink business classification and relevant QoS demand, described downlink business classification is used to make described user need to 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.
3. the dynamic connection method of base station collaboration as claimed in claim 1 is characterized in that, described base station collaboration 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.
4. 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 the cooperation mode of the described cooperative base station that can participate in cooperating to described user.
5. a base station is characterized in that, comprising:
Make up module, be used for cooperative base station information, make up the cooperative base station information table corresponding with described user according to user feedback;
First sending module is used for described cooperative base station information table is sent to each cooperative base station of user feedback, and described cooperative base station information table is used to inform that described each cooperative base station needs users in collaboration information and other cooperative base station information;
Receiver module, be used to receive the feedback information of described each cooperative base station, whether described feedback information is used to identify 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;
Second sending module is used for the cooperative base station information table after upgrading is sent to the described cooperative base station that can participate in cooperating.
6. base station as claimed in claim 5 is characterized in that, described base station also comprises:
Inform module, be used to inform user's downlink business classification and relevant QoS demand, described downlink business classification is used to make described user need to 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.
7. base station as claimed in claim 5 is characterized in that, described base station collaboration 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.
8. 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 is used 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 to identify 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 to receive described cooperative base station information table, whether participates in cooperation according to described cooperative base station information table and the decision of self channel conditions, and determination result is fed back to the affiliated base station of described terminal with the form of feedback information.
9. system as claimed in claim 8 is characterized in that, the affiliated base station of described terminal also is used for:
Inform the downlink business classification and relevant QoS demand of described terminal, whether described downlink business classification is used to make described terminal judges to need the base station that collaboration services is provided with described relevant QoS demand.
10. system as claimed in claim 8 is characterized in that, after the cooperative base station that the affiliated base station of described terminal is determined to participate in cooperating, also is used for,
Determine the cooperation mode of the described cooperative base station that can participate in cooperating to described terminal.
11. system as claimed in claim 8 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910189616 CN101998669B (en) | 2009-08-21 | 2009-08-21 | Dynamic connection method based on base station cooperation, base station, cooperation multi-input multi-output system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910189616 CN101998669B (en) | 2009-08-21 | 2009-08-21 | Dynamic connection method based on base station cooperation, base station, cooperation multi-input multi-output system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101998669A true CN101998669A (en) | 2011-03-30 |
| CN101998669B CN101998669B (en) | 2013-04-24 |
Family
ID=43787931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910189616 Expired - Fee Related CN101998669B (en) | 2009-08-21 | 2009-08-21 | Dynamic connection method based on base station cooperation, base station, cooperation multi-input multi-output system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101998669B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017015941A1 (en) * | 2015-07-30 | 2017-02-02 | 华为技术有限公司 | Wireless local area network communication method, and related device and system |
| CN106686675A (en) * | 2016-12-21 | 2017-05-17 | 电信科学技术研究院 | Device and method for determining node group providing communication service for terminals |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007123029A1 (en) * | 2006-04-20 | 2007-11-01 | Mitsubishi Electric Corporation | Method for transmitting and receiving signals in cooperative, multi-user, multi-input, multi-output network |
| CN101364826A (en) * | 2007-08-08 | 2009-02-11 | 华为技术有限公司 | Integrated realizing method, system and base station for macrodiversity incorporating and interference control |
| CN101389115A (en) * | 2008-11-07 | 2009-03-18 | 北京工业大学 | Collaboration communication method for multi-cell base station dynamic clustering |
-
2009
- 2009-08-21 CN CN 200910189616 patent/CN101998669B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007123029A1 (en) * | 2006-04-20 | 2007-11-01 | Mitsubishi Electric Corporation | Method for transmitting and receiving signals in cooperative, multi-user, multi-input, multi-output network |
| CN101364826A (en) * | 2007-08-08 | 2009-02-11 | 华为技术有限公司 | Integrated realizing method, system and base station for macrodiversity incorporating and interference control |
| CN101389115A (en) * | 2008-11-07 | 2009-03-18 | 北京工业大学 | Collaboration communication method for multi-cell base station dynamic clustering |
Non-Patent Citations (2)
| Title |
|---|
| LG ELECTRONICS: "《3GPP TSG RAN WG1 Meeting #56 R1-090657》", 13 February 2009 * |
| LG ELECTRONICS: "《3GPP TSG RAN WG1 Meeting #56b R1-091189》", 27 March 2009 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017015941A1 (en) * | 2015-07-30 | 2017-02-02 | 华为技术有限公司 | Wireless local area network communication method, and related device and system |
| CN106686675A (en) * | 2016-12-21 | 2017-05-17 | 电信科学技术研究院 | Device and method for determining node group providing communication service for terminals |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101998669B (en) | 2013-04-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9288817B2 (en) | Method and system for coordinated scheduling based on cell priority | |
| CN102684835B (en) | Method and equipment for reporting multi-point channel state information | |
| CN101686549B (en) | Resource allocation method | |
| CN101730181B (en) | Inter-cell interference mitigation signaling methods and apparatus | |
| CN102326341B (en) | The method of transmission and receiving feedback information and mobile station/base station apparatus thereof | |
| CN101932024A (en) | Downlink control information transmitting method and device | |
| CN103369539A (en) | Method and device for coordinating interference | |
| CN102696256A (en) | Communication apparatus and communication method | |
| CN101997583A (en) | Method and device for pairing uplink multi-user multi-input multi-output (MIMO) users supporting cooperation multi-point transmission | |
| CN101964980B (en) | Method and device for coordinating inter-cell interference | |
| CN102754475B (en) | Method and device for determining coordinated multi-point transmission coordinated set | |
| CN104954970B (en) | A kind of method and system of the resource allocation of D2D | |
| KR101518828B1 (en) | Communication system and method for communicating thereof | |
| CN103999513A (en) | Uplink power control for MU-MIMO | |
| CN104602347A (en) | Method and equipment for coordinating cell on plurality of resource blocks | |
| CN102025464A (en) | Method and system for precoding coordination of downlink multi-base station multi-input and multi-output | |
| CN107079472A (en) | Method and apparatus for determining access node cluster | |
| CN104159304A (en) | Device to device (D2D) communication method, and base station | |
| CN104320814A (en) | CoMP clustering method and inter-cell resource scheduling method | |
| CN102395158B (en) | Load balance optimization method considering user service quality requirements in mobile communication system | |
| CN103619022A (en) | Method and device for interference coordination between cells in heterogeneous network | |
| CN102638297B (en) | Cooperating transmission node and selection method for paired users | |
| CN101998669B (en) | Dynamic connection method based on base station cooperation, base station, cooperation multi-input multi-output system | |
| CN101965060A (en) | Method for coordinated multi-point transmission and reception and corresponding base station | |
| CN109716846A (en) | It is that the radio channel estimation updated distributes resource according to the validity currently estimated |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20160821 |