CN102833755A - Method and device for constructing CoMP (Coordinated Multi-Point) cell coordination set - Google Patents
Method and device for constructing CoMP (Coordinated Multi-Point) cell coordination set Download PDFInfo
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- CN102833755A CN102833755A CN2011101625849A CN201110162584A CN102833755A CN 102833755 A CN102833755 A CN 102833755A CN 2011101625849 A CN2011101625849 A CN 2011101625849A CN 201110162584 A CN201110162584 A CN 201110162584A CN 102833755 A CN102833755 A CN 102833755A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/022—Site diversity; Macro-diversity
- H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
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- H04J11/005—Interference mitigation or co-ordination of intercell interference
- H04J11/0053—Interference mitigation or co-ordination of intercell interference using co-ordinated multipoint transmission/reception
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Abstract
The invention discloses a method and a device for constructing a CoMP (Coordinated Multi-Point) cell coordination set, which are used for reducing the calculation complexity and promoting the system performance. The method comprises the following steps of: determining terminals to be subjected to CoMP operation and generating a CoMP terminal list; selecting a terminal from the CoMP terminal list; and if acquiring information of adjacent terminals in a preset range around the selected terminal by utilizing a positioning technology, selecting base stations which the adjacent terminals belong to to form a first CoMP cell coordination set of the selected terminal, wherein the selected terminal and the adjacent terminals to be subjected to CoMP operation share the first CoMP cell coordination set. The device comprises a CoMP terminal list generating module, a selecting module and a CoMP cell coordination set constructing module. After the method and the device which are disclosed by the invention are adopted, position information of users is introduced when the CoMP cell coordination set is constructed and the same coordination cluster is adopted for the users at close positions, so that the calculation complexity is reduced and the system performance is effectively promoted.
Description
Technical field
The present invention relates to wireless communication technology field, relate in particular to a kind of method and device of structure multipoint cooperative transmission (CoMP) cell cooperative collection.
Background technology
Existing LTE-Advanced (evolution of LTE) system adopts the identical networking technology; The access way of OFDM (OFDM) makes user's in the sub-district information-bearing on mutually orthogonal different sub carrier; Thereby avoided the interference of the multiple access between the user in the sub-district; But can't suppress presence of intercell interference (ICI, Inter-Cell Interference).For Cell Edge User, useful signal intensity is little, and is simultaneously big from the interference signal intensity of neighbor cell, makes edge customer can not get good service.Therefore, presence of intercell interference is suppressed to for problem demanding prompt solution in the LTE-Advanced system.
In order to address this problem, industry proposed various technology once, like power control, channeling, random disturbances elimination etc. flexibly.These technology all can improve the edge customer throughput, but are reduced to cost with the sub-district entire throughput.In this case, multipoint cooperative transmission (CoMP) technology is suggested.
The CoMP technology is to utilize cooperation between a plurality of transmission points that separate on the geographical position to realize the technology of transfer of data, and wherein, a plurality of transmission points are meant various network side joint ingress, include but not limited to evolution base station (eNB) or wireless relay nodes.The principle of this technology is that a plurality of base stations adopt the mode of distributed network MIMO to edge customer service to be provided synergistically, thereby improves effective Signal to Interference plus Noise Ratio of edge customer effectively, and is as shown in Figure 1.The prerequisite that adopts this technology is to construct appropriate C oMP cell cooperative collection, promptly CoMP bunch earlier.
Make up CoMP cooperation collection and be meant that several base stations of selection form one bunch from adjacent a plurality of base stations.Existing C oMP cooperation collection construction method mainly contains three types, and one type is to form CoMP bunch with fixed form, and characteristics are to select the base station of fixed number to form bunch, the cooperative cluster that all users are corresponding identical, and method is simple, but promotes limited to systematic function; Another kind of is that customer-centric forms CoMP bunch, can form according to user's demand bunch, and performance boost is bigger, but complexity is too high; Also have one type and be based on fixation of C oMP bunch; Customer-centric forms final CoMP bunch; Characteristics are to confirm a big cooperation collection (cooperation collection in advance) in advance; Concentrate the base station of dynamically selecting participation to cooperate according to user's request in preparatory cooperation then, these class methods are compromises of preceding two class methods, and then the compromise between availability and the complexity.The 3rd class methods are that many methods are discussed in the industry.
Existing method dynamically selects to participate in cooperation according to each user's demand mostly in cooperative cluster in advance base station, wherein or have and adopt the parameter thresholding to judge to select the method for final cooperative cluster or the method that adopts complicated algorithm to select final cooperative cluster is arranged.But along with the expansion of network size, existing these methods still can be brought the rapid increase of complexity, and performance but possibly not have the corresponding problem that promotes.
Summary of the invention
The technical problem that the present invention will solve provides a kind of method and device of the CoMP of structure cell cooperative collection, reduces computation complexity, the elevator system performance.
For solving the problems of the technologies described above, the invention provides a kind of method of structure multipoint cooperative transmission (CoMP) cell cooperative collection, comprising:
Confirm the terminal of pending CoMP operation, generate the CoMP terminal list;
From said CoMP terminal list, select the terminal;
If utilize location technology to obtain the information of the adjacent end in selected terminal surrounding preset range; Then choose the affiliated base station of adjacent end and form a CoMP cell cooperative collection at selected terminal, the shared said CoMP cell cooperative collection of adjacent end of selected terminal and pending CoMP operation.
Further, the said terminal of confirming pending CoMP operation generates the CoMP terminal list, comprising:
According to the QoS parameter terminal that the selection needs carry out the CoMP operation from preset network area, according to QoS parameter sorted in the terminal that said needs carry out the CoMP operation, generate the CoMP terminal list.
Further, saidly according to QoS parameter sorted in the terminal that needs carry out CoMP operation, comprising: according to service quality sorted in the terminal that needs carry out the CoMP operation, the contact bank that service quality is the poorest up front;
From said CoMP terminal list, select the terminal, comprising: preferentially select the poorest terminal of service quality.
Further, said if utilize the information of the adjacent end of location technology acquisition in selected terminal surrounding preset range, then choose the CoMP cell cooperative collection that selected terminal is formed in the affiliated base station of adjacent end, comprising:
Utilize location technology to obtain selected location information of terminals; Whether judgement has adjacent end in this terminal surrounding preset range; If have; Then utilize location technology to obtain the information of the adjacent end in this selected terminal surrounding preset range, choose the CoMP cell cooperative collection that selected terminal is formed in the affiliated base station of adjacent end.
Further; If judgement does not have adjacent end in this terminal surrounding preset range; Then utilize location technology to obtain the information of the one or more base stations in this selected terminal surrounding preset range, choose the 2nd CoMP cell cooperative collection that this selected terminal is formed in the interior one or more base stations of selected terminal surrounding preset range.
Further, saidly choose the CoMP cell cooperative collection that selected terminal is formed in base station under the adjacent end, comprising: choose under all adjacent end in the base station load factor and form a said CoMP cell cooperative collection less than the base station of preset first thresholding.
Further; The 2nd CoMP cell cooperative collection at this selected terminal is formed in said one or more base stations of choosing in the selected terminal surrounding preset range, comprising: choose in all base stations in the selected terminal surrounding preset range load factor and form said the 2nd CoMP cell cooperative collection less than the base station of preset second thresholding.
Further; After the one CoMP cell cooperative collection at selected terminal is formed completion; The adjacent end of this selected terminal of deletion and pending CoMP operation from said CoMP terminal list; Continuation is selected the terminal from said CoMP terminal list, make up the CoMP cell cooperative collection at selected terminal, in said CoMP terminal list, do not have the terminal till.
Further, said method also comprises: regularly all service quality of carrying out the terminal of CoMP operation are checked, whether upgraded the CoMP cell cooperative collection at this terminal with decision.
For solving the problems of the technologies described above, the present invention also provides a kind of device of structure multipoint cooperative transmission (CoMP) cell cooperative collection, and comprise CoMP terminal list generation module, select module, and CoMP cell cooperative collection structure module, wherein:
Said CoMP terminal list generation module is used for the terminal that definite pending CoMP operates, and generates the CoMP terminal list;
Said selection module is used for selecting the terminal from said CoMP terminal list;
Said CoMP cell cooperative collection makes up module; Be used for when utilizing location technology to obtain the information of the adjacent end in selected terminal surrounding preset range; Choose the affiliated base station of adjacent end and form a CoMP cell cooperative collection at selected terminal, the shared said CoMP cell cooperative collection of adjacent end of selected terminal and pending CoMP operation.
Further; Said CoMP terminal list generation module is used to adopt following mode to confirm the terminal of pending CoMP operation; Generate the CoMP terminal list: according to the QoS parameter terminal that the selection needs carry out the CoMP operation from preset network area; According to QoS parameter sorted in the terminal that said needs carry out the CoMP operation, the contact bank that service quality is the poorest generates the CoMP terminal list up front;
Said selection module is used for adopting following mode to select the terminal from said CoMP terminal list: preferentially select the poorest terminal of service quality.
Further; Said CoMP cell cooperative collection makes up module and is used to adopt following mode when utilizing location technology to obtain the information of the adjacent end in selected terminal surrounding preset range, chooses the CoMP cell cooperative collection that selected terminal is formed in the affiliated base station of adjacent end:
Utilize location technology to obtain selected location information of terminals; Whether judgement has adjacent end in this terminal surrounding preset range; If have; Then utilize location technology to obtain the information of the adjacent end in this selected terminal surrounding preset range, choose the CoMP cell cooperative collection that selected terminal is formed in the affiliated base station of adjacent end;
When if said CoMP cell cooperative collection structure module also is used in judging this terminal surrounding preset range, not having adjacent end; Utilize location technology to obtain the information of the one or more base stations in this selected terminal surrounding preset range, choose the 2nd CoMP cell cooperative collection that this selected terminal is formed in the interior one or more base stations of selected terminal surrounding preset range.
Further, said CoMP cell cooperative collection structure module is used for adopting following mode to choose the CoMP cell cooperative collection that selected terminal is formed in the affiliated base station of adjacent end: the base station load factor is formed a said CoMP cell cooperative collection less than the base station of preset first thresholding under choosing all adjacent end;
Said CoMP cell cooperative collection makes up module and is used for adopting following mode to choose the 2nd CoMP cell cooperative collection at this selected terminal of composition, one or more base stations in the selected terminal surrounding preset range: all base station load factors of choosing in the selected terminal surrounding preset range are formed said the 2nd CoMP cell cooperative collection less than the base station of preset second thresholding.
Further, said device also comprises update module, and it is used for regularly all service quality of carrying out the terminal of CoMP operation being checked, to determine whether to upgrade the CoMP cell cooperative collection at this terminal.
Adopt the method for the invention and device; Owing to consider some similar characteristic of close positions user; When making up CoMP cell cooperative collection, introduce user position information, the user of close positions has been adopted identical cooperative cluster, greatly reduced computation complexity.In addition, the present invention improves wireless communications environment in small area, have more practical significance, effectively the elevator system performance.
Description of drawings
Fig. 1 is for adopting CoMP technology and the communication system sketch map that does not adopt the CoMP technology;
Fig. 2 utilizes location technology for the embodiment of the invention 1 and makes up the flow chart of cooperation collection;
Fig. 3 utilizes location technology for the embodiment of the invention 2 and makes up the flow chart of cooperation collection;
Fig. 4 utilizes location technology for the embodiment of the invention 2 and makes up the sketch map of cooperation collection.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, hereinafter will combine accompanying drawing that embodiments of the invention are elaborated.Need to prove that under the situation of not conflicting, embodiment among the application and the characteristic among the embodiment be combination in any each other.
Embodiment 1
As shown in Figure 2, the method that present embodiment makes up CoMP cell cooperative collection may further comprise the steps:
This CoMP terminal list is confirmed according to QoS parameter, specifically can adopt following method to confirm:
Carry out the portable terminal that CoMP operates according to QoS parameter selection needs from this preset network area, and the portable terminal that these need carry out the CoMP operation is sorted, obtain above-mentioned CoMP terminal list according to certain QoS parameter.
The portable terminal that need carry out CoMP operation is generally and is in cell edge and is disturbed more serious terminal.Above-mentionedly be used for choosing the QoS parameter that need carry out the CoMP operating mobile terminal and comprise in the following parameter one or more: signal interference ratio (Signal Interference Noise Ratio is called for short SINR), Reference Signal Received Quality (Reference Signal Receive Quality; Abbreviation RSRQ), reference signal incoming level (Reference Signal Receive Power; Be called for short RSRP), and the function that comprises above-mentioned one or more parameters.Behind selected QoS parameter with the terminal that elects; Set the threshold values of this QoS parameter, QoS parameter measured value and the threshold values of presetting all portable terminals in the network area are compared, as a rule; If measured value is lower than this threshold values and just thinks the in poor service of this user terminal; Need carry out the CoMP operation, all user terminals that need carry out the CoMP operation are sorted according to service quality, (promptly the size according to measured value sorts the contact bank that service quality is the poorest up front; For example that measured value is minimum contact bank is up front), obtain the CoMP terminal list.Preferentially the poorest user of service is carried out the CoMP operation.
The preferential the poorest terminal of service quality of selecting, this selecteed terminal can be called the feudal lord.
Specifically comprise:
Utilize location technology to obtain selected location information of terminals; Whether judgement has adjacent end in this terminal surrounding preset range; If have; Then utilize location technology to obtain information (the for example terminal iidentification and the positional information of the adjacent end in this selected terminal surrounding preset range; Can confirm the base station under this terminal according to terminal iidentification, and whether this terminal is in the medium information of CoMP terminal list), choose the CoMP cell cooperative collection that selected terminal is formed in base station under the adjacent end.If judge and in this terminal surrounding preset range, do not have adjacent end; Then utilize location technology to obtain the information (for example Base Station Identification) of the one or more base stations in this selected terminal surrounding preset range, choose the 2nd CoMP cell cooperative collection that this selected terminal is formed in the interior one or more base stations of selected terminal surrounding preset range.
The preferential base station of selecting load to compare less gets into the cooperation collection.Comprise: choose under all adjacent end in the base station load factor and form a said CoMP cell cooperative collection less than the base station of preset first thresholding.And, choose in all base stations in the selected terminal surrounding preset range load factor and form said the 2nd CoMP cell cooperative collection less than the base station of preset second thresholding.
The preset scope of this selected terminal surrounding can be called the consular district, and it is the geometric ranges at center that the consular district can be made as with the feudal lord position.Adjacent end in this consular district can be described as feudal lord's subordinate terminal.
Above-mentioned location technology comprises: satellite radio location, terrestrial wireless location, perhaps various location technologies such as hybrid location determination technology.
After the CoMP cell cooperative collection at selected terminal was formed completion, this adjacent end if the adjacent end of pending CoMP operation is arranged, was then also deleted in this selected terminal of deletion from this CoMP terminal list.Continuation is to the operation of the repetition of the terminal in CoMP terminal list above-mentioned steps 220-230, and all terminals have all made up CoMP cell cooperative collection in the CoMP terminal list.
After forming the CoMP cell cooperative collection at selected terminal, CoMP operation is carried out at selected terminal, and promptly the base station collaboration concentrated of the affiliated base station at selected terminal and said CoMP cell cooperative is to selected terminal transmission data.
Preferably, regularly all service quality of carrying out the terminal of CoMP operation are checked, whether upgraded the CoMP cell cooperative collection at this terminal with decision.Be lower than preset threshold if characterize the measured value of the parameter of service quality,, upgrade the CoMP cell cooperative collection at this terminal then to this terminal repeated execution of steps 230.
Through terminal and the shared CoMP cell cooperative of adjacent end collection, make that all users in the CoMP terminal list in the consular district adopt identical cooperative cluster, needn't calculate separately for each user, reduced amount of calculation, reduced complexity.
The device of realizing said method comprises CoMP terminal list generation module, selects module, and CoMP cell cooperative collection structure module, wherein:
Said CoMP terminal list generation module is used for the terminal that definite pending CoMP operates, and generates the CoMP terminal list;
Said selection module is used for selecting the terminal from said CoMP terminal list;
Said CoMP cell cooperative collection makes up module; Be used for when utilizing location technology to obtain the information of the adjacent end in selected terminal surrounding preset range; Choose the affiliated base station of adjacent end and form a CoMP cell cooperative collection at selected terminal, the shared CoMP cell cooperative collection of adjacent end of selected terminal and pending CoMP operation.
Preferably; This CoMP terminal list generation module is used to adopt following mode to confirm the terminal of pending CoMP operation; Generate the CoMP terminal list: according to the QoS parameter terminal that the selection needs carry out the CoMP operation from preset network area; According to QoS parameter sorted in the terminal that said needs carry out the CoMP operation, the contact bank that service quality is the poorest generates the CoMP terminal list up front; Said selection module is used for adopting following mode to select the terminal from said CoMP terminal list: preferentially select the poorest terminal of service quality.
Preferably; Said CoMP cell cooperative collection makes up module and is used to adopt following mode when utilizing location technology to obtain the information of the adjacent end in selected terminal surrounding preset range; Choose the affiliated base station of adjacent end and form a CoMP cell cooperative collection at selected terminal: utilize location technology to obtain selected location information of terminals; Whether judgement has adjacent end in this terminal surrounding preset range; If have, then utilize location technology to obtain the information of the adjacent end in this selected terminal surrounding preset range, choose the CoMP cell cooperative collection that selected terminal is formed in the affiliated base station of adjacent end;
When if said CoMP cell cooperative collection structure module also is used in judging this terminal surrounding preset range, not having adjacent end; Utilize location technology to obtain the information of the one or more base stations in this selected terminal surrounding preset range, choose the 2nd CoMP cell cooperative collection that this selected terminal is formed in the interior one or more base stations of selected terminal surrounding preset range.
Preferably, said CoMP cell cooperative collection structure module is used for adopting following mode to choose the CoMP cell cooperative collection that selected terminal is formed in the affiliated base station of adjacent end: the base station load factor is formed a said CoMP cell cooperative collection less than the base station of preset first thresholding under choosing all adjacent end; Said CoMP cell cooperative collection makes up module and is used for adopting following mode to choose the 2nd CoMP cell cooperative collection at this selected terminal of composition, one or more base stations in the selected terminal surrounding preset range: all base station load factors of choosing in the selected terminal surrounding preset range are formed said the 2nd CoMP cell cooperative collection less than the base station of preset second thresholding.
Preferably, said device also comprises update module, and it is used for regularly all service quality of carrying out the terminal of CoMP operation being checked, to determine whether to upgrade the CoMP cell cooperative collection at this terminal.
Embodiment 2
For the ease of implementing and understanding the present invention, with a concrete example said method is described below.The QoS parameter that present embodiment relates to is: Signal Interference and Noise Ratio (SINR, Signal InterferenceNoise Ratio).As shown in Figure 3, may further comprise the steps:
Step 310 is confirmed CoMP cooperate in advance collection and in advance CoMP operating terminal tabulation; Specifically comprise:
310-1: divide a geographic area (such as shopping centre, down town, cities and towns etc.) as required, with Network Access Points such as base station all in this zone as a big preparatory cooperation collection C
0
310-2: to C
0In all terminal U
NonCoMP={ u
NonCoMP_j(not comprising the terminal of having confirmed to carry out the CoMP operation) calculating signal interference ratio SINR
NCj, and with threshold values SINR_Threshold
0Relatively, all terminals less than threshold values all add preparatory CoMP operating terminal tabulation.
Step 320 is confirmed preferential CoMP terminal list (being the CoMP terminal list among the embodiment 1); Specifically comprise:
To the terminal in the preparatory CoMP operating terminal tabulation, press the Signal to Interference plus Noise Ratio ordering, the contact bank of Signal to Interference plus Noise Ratio difference obtains preferential CoMP terminal list in front;
330-1: with first terminal u in the preferential CoMP terminal list
CoMPopt_0(coming the terminal of front) is defined as the feudal lord terminal, utilizes location technology to obtain this feudal lord's location information of terminals (like two-dimensional coordinate) through network side, and will be that radius centered is the consular district of the scope definition of R for this terminal with this feudal lord terminal, and be as shown in Figure 4;
330-2: utilize location technology to confirm the identification information of all user terminals in the consular district (subordinate terminal at feudal lord terminal), confirm the base station under each subordinate terminal, and then confirm the information such as load factor of these base stations according to those identification informations;
Step 340 is confirmed the CoMP cell cooperative collection at feudal lord terminal; Specifically comprise:
Base station under the subordinate terminal all in the consular district, feudal lord terminal is investigated, if the base station load factor is lower than preset thresholding, this base station is selected into the CoMP cell cooperative set at feudal lord terminal; If there is not the base station selected, perhaps the load factor of each base station is all very high, and location technology then capable of using is oriented the CoMP cell cooperative set of the lower base station of one or more nearest load factor as this feudal lord terminal.
If judge that subordinate terminal belongs to preferential CoMP terminal list, then subordinate terminal adopts identical CoMP cell cooperative collection with the feudal lord terminal; This subordinate terminal and feudal lord terminal all add CoMP operating terminal collection, and from preferential CoMP terminal list, delete.
Identical cooperation collection because the geographical position is approaching, and is used in CoMP terminal in the same consular district, adopts that to call collaborative CS transmission plan perhaps more effectively simple this moment.Can formulate more effective transmission plan according to this characteristic.
This CoMP operating terminal collection is to have preserved all to carry out the set at the terminal of CoMP operation; CoMP terminal for this CoMP operating terminal is concentrated is regularly checked; Judge whether to need to upgrade the CoMP cell cooperative set at each terminal; Judge perhaps whether those terminals also need carry out CoMP operation etc., its service quality of periodical evaluation for example is if quality is lower than thresholding SINR_Threshold
0, then put it into preferential CoMP terminal list.
Follow-up relevant treatment comprises:
To the terminal execution in step 330-350 in the preferential CoMP terminal list, accomplish successively up to a CoMP cooperation collection generation job.
Regularly start the program of CoMP sub-clustering next time.
One of ordinary skill in the art will appreciate that all or part of step in the said method can instruct related hardware to accomplish through program, said program can be stored in the computer-readable recording medium, like read-only memory, disk or CD etc.Alternatively, all or part of step of the foregoing description also can use one or more integrated circuits to realize.Correspondingly, each the module/unit in the foregoing description can adopt the form of hardware to realize, also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
Certainly; The present invention also can have other various embodiments; Under the situation that does not deviate from spirit of the present invention and essence thereof; Those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (14)
1. one kind makes up the method that multipoint cooperative transmits (CoMP) cell cooperative collection, comprising:
Confirm the terminal of pending CoMP operation, generate the CoMP terminal list;
From said CoMP terminal list, select the terminal;
If utilize location technology to obtain the information of the adjacent end in selected terminal surrounding preset range; Then choose the affiliated base station of adjacent end and form a CoMP cell cooperative collection at selected terminal, the shared said CoMP cell cooperative collection of adjacent end of selected terminal and pending CoMP operation.
2. the method for claim 1 is characterized in that:
The said terminal of confirming pending CoMP operation generates the CoMP terminal list, comprising:
According to the QoS parameter terminal that the selection needs carry out the CoMP operation from preset network area, according to QoS parameter sorted in the terminal that said needs carry out the CoMP operation, generate the CoMP terminal list.
3. method as claimed in claim 2 is characterized in that:
Saidly according to QoS parameter sorted in the terminal that needs carry out CoMP operation, comprising: according to service quality sorted in the terminal that needs carry out the CoMP operation, the contact bank that service quality is the poorest up front;
From said CoMP terminal list, select the terminal, comprising: preferentially select the poorest terminal of service quality.
4. like claim 1 or 2 or 3 described methods, it is characterized in that:
Said if utilize the information of the adjacent end of location technology acquisition in selected terminal surrounding preset range, then choose the CoMP cell cooperative collection that selected terminal is formed in the affiliated base station of adjacent end, comprising:
Utilize location technology to obtain selected location information of terminals; Whether judgement has adjacent end in this terminal surrounding preset range; If have; Then utilize location technology to obtain the information of the adjacent end in this selected terminal surrounding preset range, choose the CoMP cell cooperative collection that selected terminal is formed in the affiliated base station of adjacent end.
5. method as claimed in claim 4 is characterized in that:
If judgement does not have adjacent end in this terminal surrounding preset range; Then utilize location technology to obtain the information of the one or more base stations in this selected terminal surrounding preset range, choose the 2nd CoMP cell cooperative collection that this selected terminal is formed in the interior one or more base stations of selected terminal surrounding preset range.
6. method as claimed in claim 4 is characterized in that:
Saidly choose the CoMP cell cooperative collection that selected terminal is formed in base station under the adjacent end, comprising: choose under all adjacent end in the base station load factor and form a said CoMP cell cooperative collection less than the base station of preset first thresholding.
7. method as claimed in claim 5 is characterized in that:
The 2nd CoMP cell cooperative collection at this selected terminal is formed in said one or more base stations of choosing in the selected terminal surrounding preset range, comprising: choose in all base stations in the selected terminal surrounding preset range load factor and form said the 2nd CoMP cell cooperative collection less than the base station of preset second thresholding.
8. method as claimed in claim 4 is characterized in that:
After the one CoMP cell cooperative collection at selected terminal is formed completion; The adjacent end of this selected terminal of deletion and pending CoMP operation from said CoMP terminal list; Continuation is selected the terminal from said CoMP terminal list; Make up the CoMP cell cooperative collection at selected terminal, in said CoMP terminal list, do not have the terminal till.
9. the method for claim 1 is characterized in that:
Said method also comprises: regularly all service quality of carrying out the terminal of CoMP operation are checked, whether upgraded the CoMP cell cooperative collection at this terminal with decision.
10. a device that makes up multipoint cooperative transmission (CoMP) cell cooperative collection comprises CoMP terminal list generation module, selects module, and CoMP cell cooperative collection structure module, wherein:
Said CoMP terminal list generation module is used for the terminal that definite pending CoMP operates, and generates the CoMP terminal list;
Said selection module is used for selecting the terminal from said CoMP terminal list;
Said CoMP cell cooperative collection makes up module; Be used for when utilizing location technology to obtain the information of the adjacent end in selected terminal surrounding preset range; Choose the affiliated base station of adjacent end and form a CoMP cell cooperative collection at selected terminal, the shared said CoMP cell cooperative collection of adjacent end of selected terminal and pending CoMP operation.
11. device as claimed in claim 10 is characterized in that:
Said CoMP terminal list generation module is used to adopt following mode to confirm the terminal of pending CoMP operation; Generate the CoMP terminal list: according to the QoS parameter terminal that the selection needs carry out the CoMP operation from preset network area; According to QoS parameter sorted in the terminal that said needs carry out the CoMP operation; The contact bank that service quality is the poorest generates the CoMP terminal list up front;
Said selection module is used for adopting following mode to select the terminal from said CoMP terminal list: preferentially select the poorest terminal of service quality.
12., it is characterized in that like claim 10 or 11 described devices:
Said CoMP cell cooperative collection makes up module and is used to adopt following mode when utilizing location technology to obtain the information of the adjacent end in selected terminal surrounding preset range, chooses the CoMP cell cooperative collection that selected terminal is formed in the affiliated base station of adjacent end:
Utilize location technology to obtain selected location information of terminals; Whether judgement has adjacent end in this terminal surrounding preset range; If have; Then utilize location technology to obtain the information of the adjacent end in this selected terminal surrounding preset range, choose the CoMP cell cooperative collection that selected terminal is formed in the affiliated base station of adjacent end;
When if said CoMP cell cooperative collection structure module also is used in judging this terminal surrounding preset range, not having adjacent end; Utilize location technology to obtain the information of the one or more base stations in this selected terminal surrounding preset range, choose the 2nd CoMP cell cooperative collection that this selected terminal is formed in the interior one or more base stations of selected terminal surrounding preset range.
13. device as claimed in claim 12 is characterized in that:
Said CoMP cell cooperative collection makes up module and is used for adopting following mode to choose the CoMP cell cooperative collection that selected terminal is formed in the affiliated base station of adjacent end: the base station load factor is formed a said CoMP cell cooperative collection less than the base station of preset first thresholding under choosing all adjacent end;
Said CoMP cell cooperative collection makes up module and is used for adopting following mode to choose the 2nd CoMP cell cooperative collection at this selected terminal of composition, one or more base stations in the selected terminal surrounding preset range: all base station load factors of choosing in the selected terminal surrounding preset range are formed said the 2nd CoMP cell cooperative collection less than the base station of preset second thresholding.
14. device as claimed in claim 10 is characterized in that:
Said device also comprises update module, and it is used for regularly all service quality of carrying out the terminal of CoMP operation being checked, to determine whether to upgrade the CoMP cell cooperative collection at this terminal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110162584.9A CN102833755B (en) | 2011-06-16 | 2011-06-16 | Method and device for constructing CoMP (Coordinated Multi-Point) cell coordination set |
| PCT/CN2012/071739 WO2012171362A1 (en) | 2011-06-16 | 2012-02-28 | Method and device for establishing coordinated multi-point transmission cell coordination set |
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| CN201110162584.9A CN102833755B (en) | 2011-06-16 | 2011-06-16 | Method and device for constructing CoMP (Coordinated Multi-Point) cell coordination set |
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| CN102833755B CN102833755B (en) | 2017-04-12 |
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| WO (1) | WO2012171362A1 (en) |
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| CN102833755B (en) | 2017-04-12 |
| WO2012171362A1 (en) | 2012-12-20 |
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