CN102088783A - Interference coordination method and device based on dynamic link adaptation - Google Patents
Interference coordination method and device based on dynamic link adaptation Download PDFInfo
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- CN102088783A CN102088783A CN2011100256014A CN201110025601A CN102088783A CN 102088783 A CN102088783 A CN 102088783A CN 2011100256014 A CN2011100256014 A CN 2011100256014A CN 201110025601 A CN201110025601 A CN 201110025601A CN 102088783 A CN102088783 A CN 102088783A
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Abstract
The invention discloses an interference coordination method and device based on dynamic link adaptation. The method is characterized by comprising: a base station (BS) establishes link adaptive parameters according to the interference situation; the BS determines the selected link adaptive parameter and resource allocation scheme according to the interference situation of a user side; and the BS controls a user side to implement the determined link adaptive parameter and resource allocation scheme. By utilizing an interference coordination technology based on dynamic link adaptation, communication interference in a heterogeneous network can be effectively inhibited.
Description
Technical field
The present invention relates to the communications field, be specifically related to a kind of disturbance coordination method and device based on dynamic link self adaptation (MCS).
Background technology
In follow-on broadband wireless communication network, how support bigger bandwidth under the bandwidth in current wireless communication system, become a key factor that improves inter-cell user terminal throughput and user terminal average throughput.
At present, long-term technology evolution (Long Term Evolution in third generation partner program, LTE) in, particularly in heterogeneous network, there is dissimilar base station (BS), this brings difficulty for the distribution of Physical Cell Identifier, particularly when the quantity of dissimilar BS is big, very easily makes the distribution of Physical Cell Identifier produce conflict; Simultaneously, because dissimilar BS has overlay area separately, therefore bring stern challenge to Inter-Cell Interference Coordination.Not relevant at present disturbance coordination method can effectively suppress Communication Jamming.
Summary of the invention
In view of this, it is a kind of based on adaptive disturbance coordination method of dynamic link and device that main purpose of the present invention is to provide, to guarantee that the Communication Jamming in the heterogeneous network is realized effectively inhibition.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of base station BS is set up the link circuit self-adapting parameter according to disturbed condition based on the adaptive disturbance coordination method of dynamic link, and this method also comprises:
BS determines the link circuit self-adapting parameter and the Resource Allocation Formula of selection according to the disturbed condition of user side UE, and controls UE and carry out fixed described link circuit self-adapting parameter and Resource Allocation Formula.
Described link circuit self-adapting parameter is included in and marks off in other resource allocation table of comparisons of level, also comprises corresponding interference level in this table.
The link circuit self-adapting parameter of described definite selection and the process of Resource Allocation Formula comprise:
BS is provided with link circuit self-adapting and selects threshold value;
UE measures the disturbed condition of neighbour region BS, and the measured value that will measure gained reports BS;
BS determines link circuit self-adapting parameter and the Resource Allocation Formula selected in view of the above with measured value and the adaptively selected threshold comparison of preset link received;
The process that described control UE carries out fixed link circuit self-adapting parameter and Resource Allocation Formula comprises:
BS notice fixed link circuit self-adapting parameter of UE and Resource Allocation Formula;
UE receives and carries out described link circuit self-adapting parameter and Resource Allocation Formula.
Further comprise:
Dynamically adjust described link circuit self-adapting according to the long-term interference measurement results of UE and select threshold value.
Carrying out the described method that reports is:
Select prevailing interference or strong jamming to report according to disturbed condition; Perhaps,
Select a plurality of interference to report according to the threshold value that reports that sets in advance.
A kind of based on the adaptive interference coordination device of dynamic link, this device comprises link circuit self-adapting maintenance unit, link circuit self-adapting decision package, link circuit self-adapting performance element; Wherein,
Described link circuit self-adapting maintenance unit is used for setting up the link circuit self-adapting parameter according to disturbed condition, and the link circuit self-adapting parameter of being set up is notified to the link circuit self-adapting decision package;
Described link circuit self-adapting decision package is used for according to definite link circuit self-adapting parameter and the Resource Allocation Formula of selecting of the disturbed condition of UE, and described link circuit self-adapting parameter and Resource Allocation Formula are notified to the link circuit self-adapting performance element;
Described link circuit self-adapting performance element is used to control UE and carries out fixed described link circuit self-adapting parameter and Resource Allocation Formula.
Described link circuit self-adapting parameter is included in and marks off in other resource allocation table of comparisons of level, also comprises corresponding interference level in this table;
Described device is arranged at and comprises can communicating in the functional entity of control UE of BS.
Described link circuit self-adapting decision package when definite link circuit self-adapting parameter of selecting and Resource Allocation Formula, is used for:
Link circuit self-adapting is set selects threshold value;
UE is measured the disturbed condition of neighbour region BS and measured value and the adaptively selected threshold comparison of preset link that reports in view of the above, determine link circuit self-adapting parameter and the Resource Allocation Formula selected in view of the above;
Described link circuit self-adapting performance element when control UE carries out fixed link circuit self-adapting parameter and Resource Allocation Formula, is used for:
Notice fixed link circuit self-adapting parameter of UE and Resource Allocation Formula make UE receive and carry out described link circuit self-adapting parameter and Resource Allocation Formula.
Described link circuit self-adapting decision package is further used for:
Dynamically adjust described link circuit self-adapting according to the long-term interference measurement results of UE and select threshold value.
Described UE carries out giving the correct time on described, is used for:
Select prevailing interference or strong jamming to report according to disturbed condition; Perhaps,
Select a plurality of interference to report according to the threshold value that reports that sets in advance.
The present invention is based on the adaptive interference coordination technique of dynamic link, can guarantee the Communication Jamming in the heterogeneous network is realized effectively suppressing.
Description of drawings
Fig. 1 is the interference coordination flow chart of the embodiment of the invention;
Fig. 2 is an interference coordination general flow chart of the present invention;
Fig. 3 is the interference coordination installation drawing of the embodiment of the invention.
Embodiment
Dissimilar BS in the heterogeneous network, such as Femto sub-district, Home eNodeB, microcellulor (MicroCell), domestic information machine etc., can set up the link circuit self-adapting parameter, such as Modulation and Coding Scheme (MCS, Modulation Coding Scheme) etc., can comprise contents such as disturbed condition, the resource allocation table of comparisons.In fact, different link circuit self-adapting parameter and Resource Allocation Formula can be set according to different disturbed conditions.Especially, for strongly disturbing scene, Resource Allocation Formula must be guaranteed to keep quadrature with the resource of strong jamming part, reduces to greatest extent and disturbs; Simultaneously, the link circuit self-adapting parameter will select to guarantee the parameter of minimum communicating requirement, for example, changes Modulation and Coding Scheme into minimum order of modulation and coded system.
Can link circuit self-adapting be set by functional entitys such as BS and select threshold value, this threshold value waits to determine by interference, path loss, but is not limited thereto; (User Equipment UE) can measure the disturbed condition of neighbour region BS to user side, for example, measures interference signal intensity, path loss etc., and the measurement results such as measured value that will measure gained report BS; BS selects threshold comparison with measured value and the link circuit self-adapting received, and determines the link circuit self-adapting parameter and the Resource Allocation Formula of selection; Afterwards, BS can notify fixed link circuit self-adapting parameter of UE and Resource Allocation Formula, and receives and carry out described link circuit self-adapting parameter and Resource Allocation Formula by UE.
By aforesaid operations, based on the setting of link circuit self-adapting parameter, UE can select link circuit self-adapting parameter and Resource Allocation Formula according to disturbed condition, effectively reduces Communication Jamming, particularly presence of intercell interference.Simultaneously,, the interference of UE can be carried out classification and handle, guarantee significantly to have reduced presence of intercell interference under the situation of communication quality by carrying out the setting that link circuit self-adapting is selected threshold value.
Referring to Fig. 1, Fig. 1 is the interference coordination flow chart of the embodiment of the invention, and this flow process may further comprise the steps:
Step 101:BS sets up the link circuit self-adapting parameter according to disturbed condition, and this parameter can be included in the resource allocation table of comparisons, can also comprise corresponding interference level etc. in this table;
Step 102:BS is provided with link circuit self-adapting and selects threshold value, and this threshold value can wait to determine, but be not limited thereto by interference, path loss;
Step 103:UE measures the disturbed condition of neighbour region BS, and the measurement results such as measured value that will measure gained report BS;
Step 104:BS selects threshold comparison with measured value and the link circuit self-adapting received, determines link circuit self-adapting parameter and the Resource Allocation Formula selected in view of the above;
Step 105:BS notice fixed link circuit self-adapting parameter of UE and Resource Allocation Formula;
Step 106:UE receives and carries out described link circuit self-adapting parameter and Resource Allocation Formula.
It should be noted that: in the step 101, the described resource allocation table of comparisons can be represented as shown in table 1.In the table 1, suppose to disturb to be divided into 6 grades that 1 grade is weak jamming, 6 grades is strong jamming; The link circuit self-adapting parameter is divided into 3 grades, and 1 grade is used for the poorest situation of link-quality, and 3 grades are used for the best situation of link-quality; All available resources are divided into 3 subclass, and the 1st subclass is specifically designed to the strong jamming scene.Wherein, interference level, link circuit self-adapting parameter and Resource Allocation Formula can increase and decrease number of levels as required and dynamically.
| Interference level | The link circuit self-adapting parameter | Resource Allocation Formula |
| 1 | 3 | 1、2、3 |
| 2 | 3 | 1、2、3 |
| 3 | 2 | 1、2 |
| 4 | 2 | 1、2 |
| 5 | 1 | 1 |
| 6 | 1 | 1 |
Table 1
In the step 102, described link circuit self-adapting selects threshold value dynamically to adjust according to the long-term interference measurement results of UE, for example, in the time period of determining, know that the interference of UE is strong, so, to heighten described threshold value, and force UE mainly to use set interference level high link circuit self-adapting parameter and Resource Allocation Formula, disturb with effective reduction; Perhaps, in the time period of determining, know the interference of UE a little less than, so, will turn down described threshold value, force UE mainly to use set interference level low link circuit self-adapting parameter and Resource Allocation Formula, disturb with effective reduction.
In the step 103, when UE measures and reports disturbed condition, can select prevailing interference or strong jamming to report, also can select a plurality of interference to report according to the threshold value that reports that sets in advance according to disturbed condition.
In conjunction with above technical description as can be known, the operation thinking that the present invention is based on the adaptive interference coordination technique of dynamic link can be represented as shown in Figure 2.Referring to Fig. 2, Fig. 2 is an interference coordination general flow chart of the present invention, and this flow process may further comprise the steps:
Step 210:BS sets up the link circuit self-adapting parameter according to disturbed condition.Certainly, the foundation of described parameter operation is not all will carry out again when carrying out interference coordination at every turn, but can only carry out once, and after repeatedly interference coordination process in equal described parameters of being set up of application.
Step 220:BS determines the link circuit self-adapting parameter and the Resource Allocation Formula of selection according to the disturbed condition of UE.
Step 230:BS control UE carries out fixed link circuit self-adapting parameter and Resource Allocation Formula.
In order to guarantee the smooth realization of Fig. 1 and the described technology contents of Fig. 2, can carry out setting as shown in Figure 3.Referring to Fig. 3, Fig. 3 is the interference coordination installation drawing of the embodiment of the invention, this device comprises continuous link circuit self-adapting maintenance unit, link circuit self-adapting decision package, link circuit self-adapting performance element, and above-mentioned each unit all can be arranged at BS etc. and can communicate in the functional entity of control UE.
In concrete the application, the link circuit self-adapting maintenance unit can be set up the link circuit self-adapting parameter according to disturbed condition, and the link circuit self-adapting parameter of being set up is notified to the link circuit self-adapting decision package; The link circuit self-adapting decision package can be determined the link circuit self-adapting parameter and the Resource Allocation Formula of selection according to the disturbed condition of UE, and described link circuit self-adapting parameter and Resource Allocation Formula are notified to the link circuit self-adapting performance element; The link circuit self-adapting performance element can be controlled UE and carry out fixed described link circuit self-adapting parameter and Resource Allocation Formula.
In sum as can be known, no matter be method or device, the present invention is based on the adaptive interference coordination technique of dynamic link, can guarantee the Communication Jamming in the heterogeneous network is realized effectively suppressing.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. one kind based on the adaptive disturbance coordination method of dynamic link, it is characterized in that base station BS is set up the link circuit self-adapting parameter according to disturbed condition, and this method also comprises:
BS determines the link circuit self-adapting parameter and the Resource Allocation Formula of selection according to the disturbed condition of user side UE, and controls UE and carry out fixed described link circuit self-adapting parameter and Resource Allocation Formula.
2. method according to claim 1 is characterized in that, described link circuit self-adapting parameter is included in and marks off in other resource allocation table of comparisons of level, also comprises corresponding interference level in this table.
3. method according to claim 1 and 2 is characterized in that,
The link circuit self-adapting parameter of described definite selection and the process of Resource Allocation Formula comprise:
BS is provided with link circuit self-adapting and selects threshold value;
UE measures the disturbed condition of neighbour region BS, and the measured value that will measure gained reports BS;
BS determines link circuit self-adapting parameter and the Resource Allocation Formula selected in view of the above with measured value and the adaptively selected threshold comparison of preset link received;
The process that described control UE carries out fixed link circuit self-adapting parameter and Resource Allocation Formula comprises:
BS notice fixed link circuit self-adapting parameter of UE and Resource Allocation Formula;
UE receives and carries out described link circuit self-adapting parameter and Resource Allocation Formula.
4. method according to claim 3 is characterized in that, further comprises:
Dynamically adjust described link circuit self-adapting according to the long-term interference measurement results of UE and select threshold value.
5. method according to claim 3 is characterized in that, carries out the described method that reports to be:
Select prevailing interference or strong jamming to report according to disturbed condition; Perhaps,
Select a plurality of interference to report according to the threshold value that reports that sets in advance.
6. one kind based on the adaptive interference coordination device of dynamic link, it is characterized in that this device comprises link circuit self-adapting maintenance unit, link circuit self-adapting decision package, link circuit self-adapting performance element; Wherein,
Described link circuit self-adapting maintenance unit is used for setting up the link circuit self-adapting parameter according to disturbed condition, and the link circuit self-adapting parameter of being set up is notified to the link circuit self-adapting decision package;
Described link circuit self-adapting decision package is used for according to definite link circuit self-adapting parameter and the Resource Allocation Formula of selecting of the disturbed condition of UE, and described link circuit self-adapting parameter and Resource Allocation Formula are notified to the link circuit self-adapting performance element;
Described link circuit self-adapting performance element is used to control UE and carries out fixed described link circuit self-adapting parameter and Resource Allocation Formula.
7. device according to claim 6 is characterized in that,
Described link circuit self-adapting parameter is included in and marks off in other resource allocation table of comparisons of level, also comprises corresponding interference level in this table;
Described device is arranged at and comprises can communicating in the functional entity of control UE of BS.
8. according to claim 6 or 7 described devices, it is characterized in that,
Described link circuit self-adapting decision package when definite link circuit self-adapting parameter of selecting and Resource Allocation Formula, is used for:
Link circuit self-adapting is set selects threshold value;
UE is measured the disturbed condition of neighbour region BS and measured value and the adaptively selected threshold comparison of preset link that reports in view of the above, determine link circuit self-adapting parameter and the Resource Allocation Formula selected in view of the above;
Described link circuit self-adapting performance element when control UE carries out fixed link circuit self-adapting parameter and Resource Allocation Formula, is used for:
Notice fixed link circuit self-adapting parameter of UE and Resource Allocation Formula make UE receive and carry out described link circuit self-adapting parameter and Resource Allocation Formula.
9. device according to claim 8 is characterized in that, described link circuit self-adapting decision package is further used for:
Dynamically adjust described link circuit self-adapting according to the long-term interference measurement results of UE and select threshold value.
10. device according to claim 8 is characterized in that, described UE carries out giving the correct time on described, is used for:
Select prevailing interference or strong jamming to report according to disturbed condition; Perhaps,
Select a plurality of interference to report according to the threshold value that reports that sets in advance.
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| WO2013152666A1 (en) * | 2012-04-09 | 2013-10-17 | 华为技术有限公司 | Method and device for link adaptive control |
| WO2013170471A1 (en) * | 2012-05-17 | 2013-11-21 | Renesas Mobile Corporation | Mechanism for controlling communications using resource co-scheduling in inter-cell interference scenario |
| CN103857051A (en) * | 2012-12-07 | 2014-06-11 | 华为技术有限公司 | Scheduling method for uplink resources of user equipment and base stations |
| CN104285493A (en) * | 2013-04-19 | 2015-01-14 | 华为技术有限公司 | Method and device for determining resource |
| CN103414505B (en) * | 2013-08-29 | 2016-01-06 | 南京先锋硕通无线技术有限公司 | A kind of LTE femtocell user matching method that there is pattern and switch |
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Application publication date: 20110608 |