CN103037403A - Measurement method in heterogeneous network - Google Patents
Measurement method in heterogeneous network Download PDFInfo
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- CN103037403A CN103037403A CN2011103015132A CN201110301513A CN103037403A CN 103037403 A CN103037403 A CN 103037403A CN 2011103015132 A CN2011103015132 A CN 2011103015132A CN 201110301513 A CN201110301513 A CN 201110301513A CN 103037403 A CN103037403 A CN 103037403A
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Abstract
Provided is a measurement method in a heterogeneous network. The measurement method includes measurement limit indicates through measurement information, measurement subframe collection is allocated, and user experience (UE) of users executes limit measurement to small cells to be measured according to measurement subframes. Reliability of measurement under an idle state of a regional resource center (RRC) is improved.
Description
Technical field
The present invention relates to communication technical field, more specifically, relate to the method for measurement in a kind of heterogeneous network.
Background technology
In the LTE-Advanced network, in order to provide focus to cover and to enlarge cell coverage area, introduced the network configuration of heterogeneous network.Heterogeneous network refers to dispose lower powered node in macro base station (macro eNB) overlay area, thereby forms the heterogeneous network system that comprises different node types.Low power nodes comprises little base station (pico eNB), Home eNodeB (Home eNB) and relay base station (Relay eNB).
Cause more cell border areas owing to introducing small-cell in the heterogeneous network, thereby caused serious interference.In addition, introduced expansion (Range expansion) technology that covers for Microcell (pico cell) among the LTE R10.Range expansion refers in order to alleviate the load of macrocell (marco cell), the coverage of expansion Microcell specially.Specifically, UE can increase a skew (bias) at signal strength signal intensity (RSRP) or the signal quality (RSRQ) of Microcell when judging access macrocell or Microcell, and wherein bias is a positive number, so that UE more easily is linked into Microcell.
When adopting Range expansion technology, the lower guild of user (UE) in the Microcell extended region scope suffers the severe jamming from macrocell, causes being in the possibility that UE in the Microcell extended region scope can not correctly receive its transmission of data and greatly improves.How effectively to alleviate and even eliminate Microcell to introduce the interference problem bring be to improve the key of LTE-advanced systematic function.
The problems referred to above that solve of gap frame (ABS) have almost been introduced among the LTE R10.Specifically, when being positioned at the serious Pico UE of being disturbed of Microcell edge when receiving the descending sub frame of little base station, macro base station will send the ABS subframe, disturb with the down channel that reduces edge Pico UE.The ABS subframe is service data transmission not.
The introducing meeting of ABS mechanism exerts an influence to the measurement of UE, and this is because the RSRQ of Microcell on ABS and non-ABS has larger difference.Because macro base station does not use ABS transmission control signal and the business datum relevant with UE, thereby the interference that is subject on the ABS of Microcell is less, but not the interference that is subject on the ABS is larger.When UE measured ABS and non-ABS type subframe, both RSRQ measured values had larger difference.In order to address this problem, increase the reliability that UE measures, following restriction has been carried out in the measurement to the UE under the RRC connection status among the R10:
1) macro eNB is that macro UE configuration is to the Restriction of the Measuring of adjacent cell
Because macro UE need to measure a plurality of adjacent cells, wherein incessantly comprises pico cell, also can comprise common macro cell, need to adopt restricted measurement and only have to the measurement of pico cell.When therefore macro eNB is the restriction of macro UE allocating and measuring, except wanting the set of allocating and measuring subframe, also to configure the cell list corresponding with measuring the subframe set, namely Physical Cell Identifier (PCI) tabulation.UE receives and can carry out corresponding restricted measurement for the adjacent cell that belongs in the PCI scope, and carry out common measurement for the adjacent cell that does not belong in this PCI scope after this Restriction of the Measuring configuration.
2) pico eNB is that pico UE configuration is to the Restriction of the Measuring of Serving cell
For the measurement of the pico UE that is positioned at pico cell edge to pico cell, limit it and measure at ABS.UE receives after the Restriction of the Measuring configuration, can carry out restricted measurement for the Serving cell of oneself.
Yet under the RRC idle condition, UE equally also needs Serving cell and adjacent cell are measured, thereby carries out cell reselection process.In the heterogeneous network of having introduced the ABS technology, the UE under the RRC idle condition still will carry out restricted measurement, otherwise measurement result is with unreliable.How indicating UE to carry out restricted measurement under the RRC idle condition is a still an open question.
Summary of the invention
The embodiment of the invention proposes the method for measurement in a kind of heterogeneous network, improves the reliability of measuring under the RRC idle condition.
The technical scheme of the embodiment of the invention is as follows:
Method of measurement in a kind of heterogeneous network, the method comprises:
Restriction of the Measuring is indicated by measuring message;
The set of allocating and measuring subframe;
User UE carries out restricted measurement according to measuring the subframe set to residential quarter to be measured.
Described residential quarter to be measured is adjacent cell, and described configuration further comprises: adjacent cell Physical Cell Identifier (PCI) scope that configuration is corresponding;
Described UE carries out restricted measurement according to the set of measurement subframe to residential quarter to be measured and comprises: UE carries out restricted measurement according to measuring subframe set and described PCI scope to residential quarter to be measured.
Described measurement message comprises system information, and described residential quarter to be measured comprises Serving cell, and described indication comprises: at system information block SIB2 or SIB3 indicating.
Described measurement message comprises system information, and described residential quarter to be measured comprises co-frequency cell, and described indication comprises: at the SIB4 indicating.
Described measurement message comprises system information, and described residential quarter to be measured comprises alien-frequency district, and described indication comprises: at the SIB5 indicating.
Described measurement message comprises system information, and described residential quarter to be measured comprises Serving cell and adjacent cell, and described indication comprises: at SIB2 or SIB3 indicating.
Described measurement message comprises beep-page message, and described residential quarter to be measured comprises Serving cell and adjacent cell, and described indication comprises: at the beep-page message indicating.
Described measurement subframe set is what to configure respectively for different adjacent cell PCI scopes.
The set of described measurement subframe is to configure in needs limit the information of adjacent cell of measurement.
Can find out from technique scheme, in embodiments of the present invention, Restriction of the Measuring is indicated by measuring message; The set of allocating and measuring subframe, UE just can carry out restricted measurement to residential quarter to be measured according to measuring the subframe set like this.Therefore, in the heterogeneous network that has configured ABS, UE also can carry out restricted measurement under the RRC idle condition, thereby improves the reliability of measuring.
Description of drawings
Fig. 1 is the method for measurement schematic flow sheet in the embodiment of the invention heterogeneous network.
Embodiment
For making the purpose, technical solutions and advantages of the present invention express clearlyer, the present invention is further described in more detail below in conjunction with drawings and the specific embodiments.
In embodiments of the present invention, the Restriction of the Measuring under the connected state is notified to UE by the RRC dedicated signaling, and UE can not receive the RRC dedicated signaling under the Idle state, therefore can only notify UE by measuring message.Particularly, Restriction of the Measuring is indicated by measuring message, the set of allocating and measuring subframe, and UE just can carry out restricted measurement to residential quarter to be measured according to measuring the subframe set like this.Therefore, in the heterogeneous network that has configured ABS, UE also can carry out restricted measurement under the RRC idle condition, thereby improves the reliability of measuring.
Be elaborated below in conjunction with the method for measurement schematic flow sheet in accompanying drawing 1 heterogeneous network, specifically may further comprise the steps:
Step 101, Restriction of the Measuring are indicated by measuring message.
Under the RRC idle condition, Restriction of the Measuring is indicated by measuring message.Wherein, measure message and comprise system information and beep-page message.Be directed to different residential quarters to be measured, in different system information block (SIB) or beep-page message, indicate.System information refers to the system information in the LTE system, and beep-page message refers to the beep-page message in the LTE system.
Scheme one
Restriction of the Measuring under the RRC idle condition is indicated by system information, and for different cell types, Restriction of the Measuring is indicated in different SIB.
(1) to the Restriction of the Measuring of Serving cell at SIB2 or SIB3 indicating.
In existing system, the information that Serving cell is relevant is included among SIB2 or the SIB3, therefore can be at SIB2 or SIB3 indicating to the Restriction of the Measuring of Serving cell.
(2) to the Restriction of the Measuring of the adjacent cell of (intra-frequency) frequently at the SIB4 indicating.
Therefore in existing system, the relevant information of the adjacent cell of intra-frequency is included among the SIB4, can be at the SIB4 indicating for the Restriction of the Measuring of the adjacent cell of intra-frequency.
(3) to the Restriction of the Measuring of the adjacent cell of alien frequencies (inter-frequency) at the SIB5 indicating.
Therefore in existing system, the relevant information of the adjacent cell of inter-frequency is included among the SIB5, can be at the SIB5 indicating for the Restriction of the Measuring of the adjacent cell of inter-frequency.
The UE that is under the RRC idle condition receives after these SIB, can carry out restrictive measurement to Serving cell or some adjacent cell according to Restriction of the Measuring indication wherein.
Scheme two
Restriction of the Measuring under the RRC idle condition is indicated by system information, and to the Restriction of the Measuring of Serving cell and adjacent cell all at SIB2 or SIB3 indicating.In this scheme, can not distinguish adjacent cell is intra-frequency residential quarter or inter-frequency residential quarter.
The UE that is under the RRC idle condition receives after these SIB, can carry out restrictive measurement to Serving cell or some adjacent cell according to Restriction of the Measuring indication wherein.
Scheme three
Restriction of the Measuring under the RRC idle condition is indicated by beep-page message, and the Restriction of the Measuring of Serving cell and adjacent cell is all indicated in beep-page message.In this scheme, can not distinguish adjacent cell is intra-frequency residential quarter or inter-frequency residential quarter.
The UE that is under the RRC idle condition receives after the beep-page message, can carry out restrictive measurement to Serving cell or some adjacent cell according to Restriction of the Measuring indication wherein.
Step 102, the set of allocating and measuring subframe.
Restriction of the Measuring indication for Serving cell: be similar to the indicating means under the RRC connection status, can the allocating and measuring subframe gather, then Serving cell is carried out restricted measurement.
Restriction of the Measuring indication for adjacent cell: be similar to the indicating means under the RRC connection status, the set of allocating and measuring subframe and corresponding adjacent cell PCI scope.UE need to measure a plurality of adjacent cells, and in these adjacent cells, the ABS technology can be used in some residential quarter, and the ABS technology can not used in some residential quarter.For the residential quarter of having used the ABS technology, UE need to the measurement of limiting it property; And for the residential quarter of not using the ABS technology, UE does not need the measurement of limiting it property.Therefore, in the Restriction of the Measuring indication to adjacent cell, except wanting the set of allocating and measuring subframe, also to configure the PCI scope of corresponding with it adjacent cell.UE receives after this Restriction of the Measuring indication, only can carry out restricted measurement to the adjacent cell that is arranged in this PCI scope.
For the Restriction of the Measuring indication of adjacent cell, only can configure one and measure the subframe set, therefore can there be following problem.When the employed ABS subframe in a plurality of residential quarters that limits measurement when needs had common factor, what then measure configuration in the subframe set was the common factor of ABS subframe.But in the real system, different adjacent cells may be used diverse ABS, and does not occur simultaneously between these ABS, and above-mentioned collocation method will be no longer applicable this moment.
In order to address the above problem following two kinds of solutions are proposed.
(a) for the respectively allocating and measuring subframe set of different adjacent cell PCI scopes.
Indication measurement restriction tabulation wherein can configure a plurality of measurement subframe set and reach separately corresponding adjacent cell PCI scope.
Configure respectively different measurement subframe set for different adjacent cell PCI scopes.When UE carries out measurement to adjacent cell, can find according to the PCI of adjacent cell corresponding with it measurement subframe set, and gather indicated subframe in this measurements subframe and measure.
(b) limit measurement subframe set corresponding to the described adjacent cell of configuration in the information of adjacent cell of measurement at needs.
Determine to measure the subframe set for each adjacent cell indication that need to limit measurement.In the SIB4 and SIB5 of existing system, the relevant information of each adjacent cell is indicated in the capital, such as PCI be used for the side-play amount etc. of cell reselection, the measurement subframe set that this moment can configuration pin adopts this residential quarter in the information of residential quarter, how to configure is prior art.
Step 103, UE carry out restricted measurement according to measuring the subframe set to residential quarter to be measured.
For Serving cell, UE carries out restricted measurement according to measuring the subframe set to residential quarter to be measured.For adjacent cell, UE carries out restricted measurement according to measuring subframe set and corresponding PCI scope thereof for different residential quarters to be measured.
The above is preferred embodiment of the present invention only, is 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 (9)
1. the method for measurement in the heterogeneous network is characterized in that, the method comprises:
Restriction of the Measuring is indicated by measuring message;
The set of allocating and measuring subframe;
User UE carries out restricted measurement according to measuring the subframe set to residential quarter to be measured.
2. the method for measurement in the heterogeneous network according to claim 1 is characterized in that, described residential quarter to be measured is adjacent cell, and described configuration further comprises: adjacent cell Physical Cell Identifier (PCI) scope that configuration is corresponding;
Described UE carries out restricted measurement according to the set of measurement subframe to residential quarter to be measured and comprises: UE carries out restricted measurement according to measuring subframe set and described PCI scope to residential quarter to be measured.
3. the method for measurement in the heterogeneous network according to claim 1 is characterized in that, described measurement message comprises system information, and described residential quarter to be measured comprises Serving cell, and described indication comprises: at system information block SIB2 or SIB3 indicating.
4. the method for measurement in the heterogeneous network according to claim 1 is characterized in that, described measurement message comprises system information, and described residential quarter to be measured comprises co-frequency cell, and described indication comprises: at the SIB4 indicating.
5. the method for measurement in the heterogeneous network according to claim 1 is characterized in that, described measurement message comprises system information, and described residential quarter to be measured comprises alien-frequency district, and described indication comprises: at the SIB5 indicating.
6. the method for measurement in the heterogeneous network according to claim 1 is characterized in that, described measurement message comprises system information, and described residential quarter to be measured comprises Serving cell and adjacent cell, and described indication comprises: at SIB2 or SIB3 indicating.
7. the method for measurement in the heterogeneous network according to claim 1 is characterized in that, described measurement message comprises beep-page message, and described residential quarter to be measured comprises Serving cell and adjacent cell, and described indication comprises: at the beep-page message indicating.
8. the method for measurement in the heterogeneous network according to claim 2 is characterized in that, described measurement subframe set is what to configure respectively for different adjacent cell PCI scopes.
9. the method for measurement in the heterogeneous network according to claim 2 is characterized in that, described measurement subframe set is to configure in needs limit the information of adjacent cell of measurement.
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| CN2011103015132A CN103037403A (en) | 2011-09-28 | 2011-09-28 | Measurement method in heterogeneous network |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103843288A (en) * | 2011-09-26 | 2014-06-04 | 黑莓有限公司 | Method and system for small cell discovery in heterogeneous cellular networks |
| WO2018236172A1 (en) * | 2017-06-23 | 2018-12-27 | Lg Electronics Inc. | Method for performing measurement and device supporting the same |
| CN109309969A (en) * | 2017-07-26 | 2019-02-05 | 株式会社Kt | The method and device thereof of measurement processing are controlled in the rrc-idle mode |
| CN111526532A (en) * | 2019-02-02 | 2020-08-11 | 华为技术有限公司 | Cell measurement method and device |
-
2011
- 2011-09-28 CN CN2011103015132A patent/CN103037403A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| NEW POSTCOM: "《3GPP TSG RAN WG2 Meeting #75，R2-114133，idle mode cell reselection considerations》", 26 August 2011 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103843288A (en) * | 2011-09-26 | 2014-06-04 | 黑莓有限公司 | Method and system for small cell discovery in heterogeneous cellular networks |
| WO2018236172A1 (en) * | 2017-06-23 | 2018-12-27 | Lg Electronics Inc. | Method for performing measurement and device supporting the same |
| CN110915254A (en) * | 2017-06-23 | 2020-03-24 | Lg电子株式会社 | Method of performing measurement and apparatus supporting the same |
| US11096081B2 (en) | 2017-06-23 | 2021-08-17 | Lg Electronics Inc. | Method for performing measurement and device supporting the same |
| CN110915254B (en) * | 2017-06-23 | 2023-09-12 | Lg电子株式会社 | Method for performing measurement and apparatus supporting the same |
| CN109309969A (en) * | 2017-07-26 | 2019-02-05 | 株式会社Kt | The method and device thereof of measurement processing are controlled in the rrc-idle mode |
| CN111526532A (en) * | 2019-02-02 | 2020-08-11 | 华为技术有限公司 | Cell measurement method and device |
| CN111526532B (en) * | 2019-02-02 | 2022-04-05 | 华为技术有限公司 | Cell measurement method and device |
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