CN102076096A - CoMP realizing method and device and base station - Google Patents
CoMP realizing method and device and base station Download PDFInfo
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- CN102076096A CN102076096A CN2011100056037A CN201110005603A CN102076096A CN 102076096 A CN102076096 A CN 102076096A CN 2011100056037 A CN2011100056037 A CN 2011100056037A CN 201110005603 A CN201110005603 A CN 201110005603A CN 102076096 A CN102076096 A CN 102076096A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/04—Error control
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- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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- H—ELECTRICITY
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Abstract
本发明公开了一种CoMP的实现方法、装置及基站，该方法包括：获取被判决用户的当前服务小区与邻区的参考信号接收功率RSRP的差值；确定差值小于预设门限值的用户为备选边缘用户，不小于预设门限值的用户为中心用户；将备选边缘用户中的符合预设条件的用户确定为中心用户，以使其在中心频带内进行频选调度；对中心用户做CoMP。本发明实施例公开的CoMP的实现方法，采用将部分边缘用户判决为中心用户，根据ICIC调度准则，这部分中心用户可在更宽的频带上调度，可获得一定的调度增益。而这部分中心用户引入的干扰可以通过CoMP技术来加以抑制，获得CoMP干扰抑制增益。因此可以进一步提高ICIC结合CoMP性能的目的。
The invention discloses a CoMP implementation method, device and base station. The method includes: obtaining the difference between the reference signal received power RSRP of the current serving cell of the judged user and the adjacent cell; determining that the difference is less than a preset threshold value The user is a candidate edge user, and the user not less than the preset threshold value is a central user; among the candidate marginal users, the user who meets the preset conditions is determined as a central user, so that it can perform frequency selection scheduling in the central frequency band; Do CoMP for the central user. The implementation method of CoMP disclosed in the embodiment of the present invention adopts the decision of part of edge users as central users. According to the ICIC scheduling rule, these central users can be scheduled on a wider frequency band, and a certain scheduling gain can be obtained. The interference introduced by this part of the central users can be suppressed through the CoMP technology to obtain a CoMP interference suppression gain. Therefore, the purpose of ICIC combined with CoMP performance can be further improved.
Description
Technical field
The present invention relates to the communications field, relate in particular to implementation method, device and the base station of a kind of coordinate multipoint technology CoMP.
Background technology
CoMP (coordinated multi-point) is a kind of coordinate multipoint technology, comprises that descending CoMP emission and up CoMP receive.Up CoMP reception receives uniting of user data by a plurality of sub-districts and improves user's throughput, utilizes the mode of Combined Treatment to obtain transmission gain.CoMP comprises in the base station inter-eNodeB CoMP between intra-eNodeB and base station.Intra-eNodeB CoMP cooperation occurs in the base station, is the cooperation between the different districts in the same base station.Inter-eNodeB CoMP cooperation occurs between different base stations, is the cooperation between the different districts of different base station.
ICIC (Inter-Cell Interference Coordination) is a kind of interference coordination technique of minizone, avoids this Cell Edge User to use identical frequency resource with the adjacent area edge customer as far as possible.It is that frequency band is divided into 3 parts that the ICIC frequency domain is coordinated, and each sub-district use 1/3 frequency band wherein is as the edge customer frequency band, and remaining 2/3 frequency band is as the central user frequency band.
ICIC frequency domain tuning algorithm need be edge band and center frequency-band with frequency band division, makes edge customer scheduling at edge band as far as possible.Therefore the ICIC algorithm is divided into edge customer and central user with the user area.
The judgement of ICIC edge customer is based on descending RSRP (Reference Signal Receiving Power, Reference Signal Received Power) measures, when the difference of adjacent area RSRP and this sub-district RSRP during less than default thresholding, judge that promptly the user is an edge customer, if be not less than, then user's judgement is central user.
When up intra-eNodeB CoMP and ICIC technology combined, ICIC made the edge customer of neighbor cell use different frequency resources, has reduced the interference between the edge customer of adjacent area, thereby has improved the edge customer throughput.And CoMP utilizes to disturb to obtain to disturb to suppress to gain to improve CoMP user's performance gain.When CoMP user is the ICIC edge customer, the interference between the edge customer frequency band because ICIC has staggered, make interference level descend, therefore make CoMP obtain interference rejection capability and descend, therefore caused ICIC to compare the decline of the performance gain of CoMP in conjunction with the performance gain of CoMP.
Summary of the invention
In view of this, the invention provides implementation method and the device of a kind of coordinate multipoint technology CoMP, compare the problem that the performance gain of CoMP descends to solve ICIC in the prior art in conjunction with the performance gain of CoMP, its concrete scheme is as follows:
The implementation method of a kind of coordinate multipoint technology CoMP comprises:
Obtain the difference of the Reference Signal Received Power RSRP of the current service cell that is judged the user and adjacent area;
Determine that described difference is alternative edge customer less than the user of predetermined threshold value, is not less than the user-center user of described predetermined threshold value;
The pre-conditioned user that meets in the described alternative edge customer is defined as central user, so that it carries out frequency degree of recruiting in center frequency-band; Described central user is CoMP.
The implement device of a kind of coordinate multipoint technology CoMP comprises:
Acquisition module is used to obtain the difference of the Reference Signal Received Power RSRP of the current service cell that is judged the user and adjacent area;
First determination module is used for determining that described difference is alternative edge customer less than the user of predetermined threshold value, is not less than the user-center user of described predetermined threshold value;
Second determination module is used for the user that meeting of described alternative edge customer is pre-conditioned and is defined as central user, so that it carries out frequency degree of recruiting in center frequency-band;
The CoMP module is used for described central user is CoMP.
A kind of base station comprises: the implement device of aforesaid coordinate multipoint technology CoMP.
From technique scheme as can be seen, the implementation method of the disclosed CoMP of the embodiment of the invention adopts the mode of the certain customers in the edge customer of the prior art as central user, make that comparing original algorithm carries out frequency degree of recruiting in 1/3 edge band, can obtain the gain of more degree of recruiting frequently, the interference of Yin Ruing simultaneously, can eliminate by the CoMP technology, suppress to gain to realize obtaining to disturb, the purpose of elevator system performance has solved ICIC in the prior art and has compared the problem that the performance gain of CoMP descends in conjunction with the performance gain of CoMP.
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.
Fig. 1 is the flow chart of the implementation method of the disclosed a kind of CoMP of the embodiment of the invention;
Fig. 2 is the flow chart of the implementation method of the disclosed another CoMP of the embodiment of the invention;
Fig. 3 is the structural representation of the implement device of the disclosed a kind of CoMP of the embodiment of the invention.
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.
The invention discloses the implementation method of a kind of CoMP, its specific implementation is as described below:
The flow process of the implementation method of a kind of CoMP disclosed by the invention comprises as shown in Figure 1:
Step S11, obtain the difference of the Reference Signal Received Power RSRP of the current service cell that is judged the user and adjacent area;
Step S12, whether judge difference less than predetermined threshold value, if, execution in step S13 then, if not, execution in step S14 then;
This predetermined threshold value is the value of setting arbitrarily according to actual conditions.
Step S13, determine that the user is alternative edge customer, execution in step S15;
Alternative edge customer is not user's a true attribute, but the pilot process parameter of setting for convenience of follow-up judgement.Attribute of user still includes only: CEU (Cell edge user, edge customer) and CCU (Cell center user, central user).
Step S14, determine user-center user, execution in step S16;
Need attribute of user is set at CCU herein.
Step S15, the pre-conditioned user that meets in the alternative edge customer is defined as central user, so that it carries out frequency degree of recruiting in center frequency-band.
Be set at CCU with meeting pre-conditioned attribute of user in the alternative edge customer herein.
Step S16, central user is CoMP.
In this step, be that the user of CCU is CoMP to user property.Meet pre-conditioned user in the present embodiment when intra-eNodeB CoMP, can when inter-eNodeBCoMP, can be edge customer between the base station for base station inward flange user.Present embodiment does not limit and meets pre-conditioned number of users and type, so long as belong to the user of alternative edge customer, meet according to actual conditions set pre-conditioned, its attribute can be set at CCU as central user, in center frequency-band, carry out frequency degree of recruiting then, gain to obtain more degree of recruiting frequently, and introduce and disturb.
The interference that the central user of utilizing the CoMP technology that step S15 is determined is introduced suppresses, to obtain to disturb the inhibition gain.In the implementation method of the disclosed CoMP of present embodiment, with the mode of pre-conditioned user that meet in the edge customer that determines in the prior art as central user, make that comparing original algorithm carries out frequency degree of recruiting in 1/3 edge band, can obtain the gain of more degree of recruiting frequently, the interference of Yin Ruing simultaneously, can eliminate by the CoMP technology, suppress to gain the purpose of elevator system performance to realize obtaining to disturb.
This method can be applied in the user type judgement when combining of up intra-eNodeB CoMP and ICIC technology, equally also can be applied in the downlink user type identification, or the scene that inter-eNodeBCoMP combines with the ICIC technology between the base station, just under this scene, meet pre-conditioned user and be edge customer between the base station, it is defined as central user to realize above-mentioned purpose.And it is applied in descending CoMP and ICIC technology when combining, and its dispatching principle and up similar substantially, edge customer preferentially call at edge band, and central user is preferentially called at center frequency-band.Adopt high power to send for the edge customer frequency band, adopt low-power to send for the central user frequency band.By the ICIC edge customer frequency band that high power sends that staggers, can reduce the interference between the edge customer like this.The improvement algorithm of same similar up ICIC edge customer judgement will meet pre-conditioned edge customer and be judged to central user, call on center frequency-band.Can obtain degree of recruiting gain frequently this moment, and the interference that produces can be eliminated by the CoMP technology.
In addition, a last embodiment after above-mentioned steps, can also comprise:
Step S17, definite alternative edge customer except that described central user are edge customer.
The attribute of user of alternative edge customer except that attribute is CCU is set at CEU, determines that it is as edge customer.
Present embodiment do not limit central user is CoMP step before this step, can after determine edge customer, carry out again central user is done the process of CoMP to realize eliminating the purpose of disturbing equally.
The flow process of the implementation method of another CoMP disclosed by the invention comprises as shown in Figure 2:
Step S21, the difference of getting the Reference Signal Received Power RSRP of the current service cell that is judged the user and adjacent area;
Step S22, whether judge difference less than predetermined threshold value, if, execution in step S23 then, if not, execution in step S24 then;
Step S23, determine that the user is alternative edge customer;
Step S24, determine user-center user, execution in step S28;
Step S25, judge whether alternative edge customer is base station inward flange user, if, execution in step S26 then, if not, execution in step S27 then;
Step S26, determine that alternative edge customer is a central user, so that it carries out frequency degree of recruiting, execution in step S28 in center frequency-band;
Step S27, determine that alternative edge customer is an edge customer;
Step S28, central user is CoMP.
In the present embodiment, by alternative edge customer is further differentiated, the user's judgement that meets base station inward flange user condition in the alternative edge customer is central user, be understandable that, in the present embodiment, the judgement of the certain customers in the alternative edge customer can be preestablished according to the actual requirements for the condition of central user.For example, the user judgement that can set the edge customer condition between the base station that meets in the alternative edge customer is central user.Under frequency degree of recruiting, the base station inward flange user who is judged as central user can dispatch on 2/3 wideer center frequency-band, thereby the Resource Block that can obtain higher SINR (Signal toInterference plus Noise Ratio, Signal to Interference plus Noise Ratio) is dispatched this user.Compare original algorithm and in 1/3 edge band, carry out frequency degree of recruiting, can obtain the gain of more degree of recruiting frequently.The interference that base station inward flange user introduces can obtain to disturb the inhibition gain by the CoMP technology, therefore can obtain degree of recruiting gain frequently and interference simultaneously and suppress gain, has promoted ICIC in conjunction with the CoMP performance.
In the present embodiment for base station inward flange user's differentiation process can for: the current service cell of judging alternative edge customer and the adjacent area of the described RSRP of recording whether belong to identical base station if, then described alternative edge customer is base station inward flange user, if not, then described alternative edge customer is not base station inward flange user, and it is defined as edge customer.
For inter-eNodeB CoMP between the base station, the alternative edge customer that can select adjacent area with current service cell and the described RSRP of recording to belong to adjacent base station is defined as edge customer between the base station, with edge customer judgement between the base station for central user to realize above-mentioned purpose.
Simultaneously, the invention discloses the implement device of a kind of CoMP, its structure comprises as shown in Figure 3: acquisition module 31, first determination module 32, second determination module 33 and CoMP module 34, wherein:
Acquisition module 31 is used to obtain the difference of the Reference Signal Received Power RSRP of the current service cell that is judged the user and adjacent area; First determination module 32 is used for determining that described difference is alternative edge customer less than the user of predetermined threshold value, is not less than the user-center user of described predetermined threshold value; Second determination module 33 is used for the user that meeting of described alternative edge customer is pre-conditioned and is defined as central user, so that it carries out frequency degree of recruiting in center frequency-band; CoMP module 34 is used for described central user is CoMP.
Further, said apparatus also comprises: edge customer determination module 35 is used for determining that the alternative edge customer except that described central user is an edge customer.
Further, described second determination module 33 comprises:
First judgement unit 331 is used to judge whether described alternative edge customer is edge customer between base station inward flange user or base station;
The 3rd determining unit 332 is used for determining that edge customer is a central user between described base station inward flange user or base station.
Described first judgement unit 331 comprises: second differentiates subelement 3311, is used to judge whether the current service cell of described alternative edge customer and described adjacent area belong to same base; The 4th determines subelement 3312, is used for determining that the alternative edge customer that described current service cell and described adjacent area belong to same base is base station inward flange user.
Present embodiment do not limit CoMP implement device structure as shown in Figure 3, can realize that function adjusts its concrete structure accordingly according to it, so long as can realize the structure of the function of this device, all be the scope of present embodiment protection.
The course of work between above-mentioned each unit is as described below:
After acquiring unit obtains the difference of Reference Signal Received Power RSRP of the current service cell that is judged the user and adjacent area; First determining unit judges that whether described difference is less than predetermined threshold value, described difference is defined as alternative edge customer less than the user of predetermined threshold value, the user who is not less than described predetermined threshold value is defined as central user, second determining unit is selected to meet pre-conditioned user and is defined as central user from described alternative edge customer, make this part user on wideer frequency band, to dispatch, obtain certain scheduling gain.And the interference that this part user introduces can be CoMP to described central user by the CoMP unit and be suppressed, and obtains CoMP and disturbs and suppress gain.Therefore can further improve the purpose of ICIC in conjunction with the CoMP performance.
Further, the invention also discloses a kind of base station, comprise the CoMP device, this device is used to obtain the difference of the Reference Signal Received Power RSRP of the current service cell that is judged the user and adjacent area; Determine that described difference is alternative edge customer less than the user of predetermined threshold value, is not less than the user-center user of described predetermined threshold value; The pre-conditioned user that meets in the described alternative edge customer is defined as central user, so that it carries out frequency degree of recruiting in center frequency-band; Described central user is CoMP.
The concrete structure of the CoMP device in the present embodiment can be as shown in Figure 3.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.For the disclosed device of embodiment, because it is corresponding with the embodiment disclosed method, so description is fairly simple, relevant part partly illustrates referring to method and gets final product.
The professional can also further recognize, the unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with electronic hardware, computer software or the combination of the two, for the interchangeability of hardware and software clearly is described, the composition and the step of each example described prevailingly according to function in the above description.These functions still are that software mode is carried out with hardware actually, depend on the application-specific and the design constraint of technical scheme.The professional and technical personnel can use distinct methods to realize described function to each specific should being used for, but this realization should not thought and exceeds scope of the present invention.
The method of describing in conjunction with embodiment disclosed herein or the step of algorithm can directly use the software module of hardware, processor execution, and perhaps the combination of the two is implemented.Software module can place the storage medium of any other form known in random asccess memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or the technical field.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (10)
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100056037A CN102076096B (en) | 2011-01-12 | 2011-01-12 | CoMP realizing method and device and base station |
| PCT/CN2012/070208 WO2012094995A1 (en) | 2011-01-12 | 2012-01-11 | Method, device and enodeb for implementing comp |
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| CN2011100056037A CN102076096B (en) | 2011-01-12 | 2011-01-12 | CoMP realizing method and device and base station |
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| CN105519157A (en) * | 2013-11-01 | 2016-04-20 | 上海贝尔股份有限公司 | Inter-cell interference suppression method and device |
| WO2015061924A1 (en) * | 2013-11-01 | 2015-05-07 | 上海贝尔股份有限公司 | Method and apparatus for inter-cell interference suppression |
| CN105519157B (en) * | 2013-11-01 | 2019-05-07 | 上海诺基亚贝尔股份有限公司 | Method and device for inter-cell interference suppression |
| CN106304089A (en) * | 2015-05-11 | 2017-01-04 | 普天信息技术有限公司 | A downlink CoMP implementation method and access device |
| CN106304089B (en) * | 2015-05-11 | 2019-07-23 | 普天信息技术有限公司 | A kind of downlink CoMP implementation method and access device |
| CN106714306A (en) * | 2015-07-14 | 2017-05-24 | 普天信息技术有限公司 | Dynamic allocation method of CoMP resource and base station |
| WO2018001013A1 (en) * | 2016-06-30 | 2018-01-04 | 中兴通讯股份有限公司 | Method and device for eliminating co-frequency interference |
| CN107567096A (en) * | 2016-06-30 | 2018-01-09 | 中兴通讯股份有限公司 | Eliminate the method and device of co-channel interference |
| CN107567096B (en) * | 2016-06-30 | 2021-01-22 | 中兴通讯股份有限公司 | Method and device for eliminating co-channel interference |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012094995A1 (en) | 2012-07-19 |
| CN102076096B (en) | 2013-08-28 |
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