CN102984722A - Measuring and collocation method in interference coordination mechanism - Google Patents
Measuring and collocation method in interference coordination mechanism Download PDFInfo
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- CN102984722A CN102984722A CN2011102620518A CN201110262051A CN102984722A CN 102984722 A CN102984722 A CN 102984722A CN 2011102620518 A CN2011102620518 A CN 2011102620518A CN 201110262051 A CN201110262051 A CN 201110262051A CN 102984722 A CN102984722 A CN 102984722A
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Abstract
The invention provides a measuring and collocation method in an interference coordination mechanism. According to the principle that subframe sets of absolute blank subframes (ABS) adopted among Picos in mutual strong interference are not intersected, a macro Pico coordinates the subframe sets of the ABS for each Pico in the coverage area, then each Pico determines measuring subsets adopted by user equipment (UE) in each area to measure the Pico of adjacent areas according to the subframe sets of the ABS of each adjacent area, and informs the UE in each area. According to the measuring and collocation method in the interference coordination mechanism, the UE can measure the adjacent areas in mutual strong interference according to the different measuring subsets, and therefore accurate measurement of the adjacent areas can be achieved.
Description
Technical field
The present invention relates to the resource distribution technology in the mobile communication system, particularly relate to the measurement collocation method under a kind of interference coordination mechanism.
Background technology
Interference coordination mechanism is the job (Work Item) of 3GPP Rel-11 under the heterogeneous network.Heterogeneous network refers to that low power nodes is placed in the macro base station coverage area by cloth, forms the heterogeneous system with the different node types that cover.Low power nodes (Low Power Node, LPN) comprises that little base station (Pico), less radio-frequency zoom out (Remote Radio Head, RRH), relaying (Relay) and Home eNodeB (Home eNB, Femto) etc.The technology of the remarkable elevator system throughput of low power nodes energy and network whole efficiency also can be brought extra heterogeneous network presence of intercell interference simultaneously.Isomery scene for macro base station (Macro)+Pico, in Rel-10, consider employing scope expansion (Range Expansion) technology, being subscriber equipment (UE) carries out that the residential quarter is selected or when switching at macrocell and Microcell, can increase a deviant in Reference Signal Received Power (RSRP) value of Microcell, namely work as λ
Pico+ λ
Bias〉=λ
Macro, UE then selects to access Microcell, otherwise, select access macrocell, wherein λ
BiasBe deviant, λ
PicoBe the RSRP value from Microcell that UE measures, λ
MacroThe RSRP value from macrocell that measures for UE.
The employing of Range Expansion technology is equivalent to artificially enlarge the coverage of Pico base station, therefore the downstream signal of the macro base station received of the edge customer (Pico UE1 as shown in Figure 1) under the enlarged area of Pico base station will be better than the downstream signal of Pico base station, if do not take effective interference coordination mechanism, the edge customer that is in the extended region of Pico base station can't proper communication.Almost gap frame (ABS) method is the disturbance coordination method that Rel-10 determines, is applicable to FDD and TDD system.Specifically, when being disturbed serious Pico UE when receiving the descending sub frame of Pico base station, macro base station will send the ABS subframe, disturb with the down channel that reduces edge Pico UE.The ABS subframe only comprises district's level reference signal (CRS), channel condition information-reference signal (CSI-RS), Physical Broadcast Channel (PBCH), master sync signal (PSS), auxiliary synchronous signals (SSS), the information such as paging (Paging) and system information block 1 (SIB 1), not transmitting data service.
Shown in Figure 2 is a heterogeneous network scene that intensive Pico disposes, and can have mutual strong jamming between the Pico under this scene, such as the Pico1 among Fig. 2 and Pico2.When the ABS scheme was used under this scene, Pico1 need to use the different ABS subframe collection that occurs simultaneously as sky with Pico2, so that be in the Pico UE proper communication of Pico1 and Pico2 covering lap.At this moment, when Macro UE will measure Pico1 and Pico2, need to carry out at the ABS of each base station subframe collection.If Pico3 is subject to pico4 and Pico5 strong jamming, Pico3UE also needs to dispose different measurement subframe collection to the measurement of Pico4 and Pico5.Yet for the configuration of UE to the measurement subframe collection of adjacent cell, present agreement only supports that the base station is that the subframe collection is measured in one of UE configuration.So under this scene, some UE can't finish accurately adjacent cell measurement.
This shows that under the macro+pico scene that intensive Pico disposes, when UE need to carry out adjacent cell measurement to a plurality of Pico that interfere with each other, adopt the existing system agreement, UE can't finish the Measurement accuracy to its adjacent cell.
Summary of the invention
In view of this, main purpose of the present invention is to provide the measurement collocation method under a kind of interference coordination mechanism, and the method can guarantee that UE measures accurately to the adjacent area.
In order to achieve the above object, the technical scheme of the present invention's proposition is:
Measurement collocation method under a kind of interference coordination mechanism, the method may further comprise the steps:
Strongly disturbing little base station Pico notifies to described macro base station with existing mutually in the macro base station coverage in advance for a, Operation and Maintenance network element, and for there being mutually strongly disturbing each described Pico, will existing mutually with this Pico, strongly disturbing adjacent Pico notifies to this Pico;
B, macro base station are each the Pico configuration ABS subframe collection in its coverage according to the disjoint principle of ABS subframe collection that adopts between the mutual strongly disturbing Pico;
Mutual strongly disturbing each Pico according to the notice of described macro base station or the mutual notice between adjacent described Pico, is known the described ABS subframe collection of strongly disturbing adjacent Pico with it in c, the described macro base station coverage;
D, when described macro base station need to carry out to the UE of this residential quarter nearby region measurement when configuration, in the described ABS subframe collection scope of each described Pico, determine the measurement subframe collection that each described Pico is corresponding, and notice is to described UE; When the described Pico that has the adjacent Pico of strong jamming need to carry out to the UE of this residential quarter the nearby region measurement configuration, in the described ABS subframe collection scope of each adjacent Pico strongly disturbing with it, determine the measurement subframe collection that each adjacent Pico is corresponding, and notice is to described UE.
In sum, measurement collocation method under the interference coordination mechanism that the present invention proposes, macro base station is according to the disjoint principle of almost gap frame ABS subframe collection that adopts between the mutual strongly disturbing Pico, be each the Pico configuration ABS subframe collection in its coverage, afterwards, the measurement subset of employing when this residential quarter UE measures adjacent area Pico is determined according to the ABS subframe collection of each adjacent area Pico in each base station, and notice is to this residential quarter UE.Like this, UE can measure different strong jamming adjacent areas according to different measurement subsets, thereby can realize the Measurement accuracy to the adjacent area.
Description of drawings
Fig. 1 is the descending interference schematic diagram in the isomery scene of existing system Macro+Pico;
Fig. 2 is the heterogeneous network scene schematic diagram that intensive Pico disposes in the existing system;
Fig. 3 is the schematic flow sheet of the embodiment of the invention one.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with the accompanying drawings and the specific embodiments.
Core concept of the present invention is: informing macro base station by Operation and Maintenance network element (OAM) in advance, is mutually strongly disturbing between which pico in its coverage, and OAM also informs the pico base station, and which mutual strongly disturbing adjacent pico has with its existence; Macro base station is that the abs mode that has strongly disturbing Pico with it also can be known in the Pico base station after Pico distributed abs mode; Then on this basis, macro base station and Pico base station for its UE disposes a plurality of measurement subsets adjacent cell is measured.
Fig. 3 is the schematic flow sheet of the embodiment of the invention one, and as shown in Figure 3, this embodiment one mainly may further comprise the steps:
Utilize this step, macro base station can be known for which mutual strongly disturbing Pico in its coverage, and each Pico also can know and the mutual strongly disturbing adjacent Pico of its existence simultaneously.In actual applications, can be when network construction, OAM carries out described notice, and correspondingly, if variation has occured the Pico in the network, OAM also needs to upgrade dynamically.
Here, according to the disjoint principle of ABS subframe collection that adopts between the mutual strongly disturbing Pico, can guarantee that the ABS subframe collection of strongly disturbing each Pico configuration is not identical mutually.
Mutual strongly disturbing each Pico according to the notice of described macro base station or the mutual notice between adjacent described Pico, is known the described ABS subframe collection of strongly disturbing adjacent Pico with it in step 303, the described macro base station coverage.
This step is used for making mutual strongly disturbing each Pico to know the ABS subframe collection of the strong jamming residential quarter that is adjacent, in order to dispose on this basis the measurement subframe collection of each neighbor cell for this residential quarter UE.
Particularly, this step can adopt following method to realize:
Method one, for mutual strongly disturbing each Pico in the described macro base station coverage, described macro base station is by the base station configuration updating information of X2 interface, will be with it the described ABS subframe collection of strongly disturbing adjacent Pico notify to this Pico.
Mutual strongly disturbing each Pico by the base station configuration updating information of X2 interface, notifies the described ABS subframe collection of self to strongly disturbing adjacent Pico with it in method two, the described macro base station coverage.
Realized said method one method notified by macro base station, method two have realized by the mutual method of notice between the Pico.
Here, utilize the ABS subframe collection of each Pico, come to determine the measurement subframe collection that adopts when this Pico measured, like this owing to guaranteed that the ABS subframe collection of different Pico is different in the step 302, correspondingly, based on this obtain to measurement subframe collection corresponding to different Pico also with difference, thereby can guarantee that the measurement that UE adopts the different adjacent areas of different measuring subframe set pair to carry out does not interfere with each other yet, and it is hereby ensured that UE carries out the accuracy of nearby region measurement.
Particularly, the measurement subframe collection that described each described Pico is corresponding can or be the complete or collected works of the described ABS subframe collection of each described Pico for the subset of the described ABS subframe collection of each described Pico.
Measurement subframe collection corresponding to described each adjacent Pico can or be that measurement subframe collection corresponding to each adjacent Pico is the described ABS subframe collection of each adjacent Pico for the subset of the described ABS subframe collection of each adjacent Pico.
In sum, more than be preferred embodiment of the present invention only, be not for limiting protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. the measurement collocation method under the interference coordination mechanism is characterized in that the method may further comprise the steps:
Strongly disturbing little base station Pico notifies to described macro base station with existing mutually in the macro base station coverage in advance for a, Operation and Maintenance network element, and for there being mutually strongly disturbing each described Pico, will existing mutually with this Pico, strongly disturbing adjacent Pico notifies to this Pico;
B, macro base station are each the Pico configuration ABS subframe collection in its coverage according to the disjoint principle of almost gap frame ABS subframe collection that adopts between the mutual strongly disturbing Pico;
Mutual strongly disturbing each Pico according to the notice of described macro base station or the mutual notice between adjacent described Pico, is known the described ABS subframe collection of strongly disturbing adjacent Pico with it in c, the described macro base station coverage;
D, when described macro base station need to carry out to the UE of this residential quarter nearby region measurement when configuration, in the described ABS subframe collection scope of each described Pico, determine the measurement subframe collection that each described Pico is corresponding, and notice is to described UE; When the described Pico that has the adjacent Pico of strong jamming need to carry out to the UE of this residential quarter the nearby region measurement configuration, in the described ABS subframe collection scope of each adjacent Pico strongly disturbing with it, determine the measurement subframe collection that each adjacent Pico is corresponding, and notice is to described UE.
2. method according to claim 1, it is characterized in that, described step c is: for mutual strongly disturbing each Pico in the described macro base station coverage, described macro base station is by the base station configuration updating information of X2 interface, will be with it the described ABS subframe collection of strongly disturbing adjacent Pico notify to this Pico.
3. method according to claim 1, it is characterized in that, described step c is: mutual strongly disturbing each Pico in the described macro base station coverage, by the base station configuration updating information of X2 interface, notify the described ABS subframe collection of self to strongly disturbing adjacent Pico with it.
4. method according to claim 1 is characterized in that, the measurement subframe collection that each described Pico is corresponding described in the steps d is the subset of the described ABS subframe collection of each described Pico.
5. method according to claim 1 is characterized in that, the measurement subframe collection that each described Pico is corresponding described in the steps d is the described ABS subframe collection of each described Pico.
6. method according to claim 1 is characterized in that, the measurement subframe collection that each adjacent Pico is corresponding described in the steps d is the subset of the described ABS subframe collection of each adjacent Pico.
7. method according to claim 1 is characterized in that, the measurement subframe collection that each adjacent Pico is corresponding described in the steps d is the described ABS subframe collection of each adjacent Pico.
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| CN104284421A (en) * | 2013-07-04 | 2015-01-14 | 株式会社Ntt都科摩 | Method and device for interference coordination of cell on multiple time domain resources |
| WO2016008118A1 (en) * | 2014-07-16 | 2016-01-21 | 华为技术有限公司 | Method and device for measuring radio resource management of adjacent cell |
| WO2018127026A1 (en) * | 2017-01-06 | 2018-07-12 | 中兴通讯股份有限公司 | Measurement configuration method, apparatus, network element, and system |
| WO2018184141A1 (en) * | 2017-04-04 | 2018-10-11 | Qualcomm Incorporated | Reduced power mode for millimeter wave base stations |
| US10993130B2 (en) | 2015-09-01 | 2021-04-27 | Huawei Technologies Co., Ltd. | Measurement method and apparatus |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104284421A (en) * | 2013-07-04 | 2015-01-14 | 株式会社Ntt都科摩 | Method and device for interference coordination of cell on multiple time domain resources |
| WO2016008118A1 (en) * | 2014-07-16 | 2016-01-21 | 华为技术有限公司 | Method and device for measuring radio resource management of adjacent cell |
| CN106537970A (en) * | 2014-07-16 | 2017-03-22 | 华为技术有限公司 | Method and device for measuring radio resource management of adjacent cell |
| US10638339B2 (en) | 2014-07-16 | 2020-04-28 | Huawei Technologies Co., Ltd. | Method for measuring neighboring cell radio resource management and apparatus |
| CN106537970B (en) * | 2014-07-16 | 2020-05-08 | 华为技术有限公司 | Method and device for measuring wireless resource management of adjacent cell |
| US10993130B2 (en) | 2015-09-01 | 2021-04-27 | Huawei Technologies Co., Ltd. | Measurement method and apparatus |
| WO2018127026A1 (en) * | 2017-01-06 | 2018-07-12 | 中兴通讯股份有限公司 | Measurement configuration method, apparatus, network element, and system |
| CN108282799A (en) * | 2017-01-06 | 2018-07-13 | 中兴通讯股份有限公司 | A kind of measuring configuration method, apparatus, network element and system |
| WO2018184141A1 (en) * | 2017-04-04 | 2018-10-11 | Qualcomm Incorporated | Reduced power mode for millimeter wave base stations |
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| CN102984722B (en) | 2015-06-24 |
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