CN101686472B - Method and device for reporting measurement - Google Patents

Abstract

The embodiment of the present invention discloses a method and device for measurement reporting, including the following steps: measuring the frequency band signal quality of the serving cell and adjacent cells; when the frequency band signal quality of the serving cell and adjacent cells meets the requirements of the measurement event, Reporting the signal quality of the frequency band satisfying the measurement event to the serving cell. The embodiment of the present invention configures measurement events in the spectrum aggregation serving cell to ensure that the UE searches for the cell according to the above measurement time and performs comprehensive measurements, and reports the signal quality of the frequency band that meets the requirements of the measurement event, so that the current service frequency band has high-quality signals.

Description

A method and device for measuring and reporting

technical field

The embodiments of the present invention relate to the communication field, and in particular to a method and device for measurement reporting.

Background technique

At the World Radiocommunication Conference (WRC07) held in Geneva, Switzerland in 2007, the International Telecommunication Union (ITU) delineated four new frequency bands for the third-generation and fourth-generation mobile communication systems, namely 200MHz bandwidth from 3.4G to 3.6GHz , 100MHz bandwidth from 2.3G to 2.4GHz, 108MHz bandwidth from 698M to 806MHz, and 20MHz bandwidth from 450M to 470MHz. However, due to the different allocation conditions in different countries, the IMT frequency bands obtained by each operator may not be continuous. Therefore, in order to ensure the service quality of high-bandwidth and high-speed services, spectrum aggregation technology needs to be introduced into LTE-A (Long Term Evolution -Advanced, long-term evolution) system. Spectrum aggregation can be applied to both contiguous and non-contiguous frequency bands.

In the active state mobility management, the network side configures a measurement frequency point for the UE (User Equipment) as a measurement target, and the UE searches for cells on the configured frequency point, and measures the cells it searches for. After the UE obtains the measurement result, there are two ways how to report the measurement result to the network side: periodic reporting and event-triggered reporting. The present invention relates to an event-triggered reporting manner. The event-triggered reporting method means that the network side defines a variety of measurement reporting events, and the serving cell configures or modifies measurement events in RRC Connection Reconfiguration for each connected UE. If the measurement result of the UE meets the measurement event requirements, the reporting of the measurement results is triggered, and the measurement results meeting the measurement event requirements are reported to the serving cell through the measurement report, and the serving cell performs handover according to its measurement results and related radio resource management algorithms (RRM) Decide.

In the LTE system, there are two types of measurement events:

EUTRA system measurement events (including same frequency and different frequency):

A1 event: The signal quality of the serving cell is higher than the absolute threshold;

A2 event: The signal quality of the serving cell is lower than the absolute threshold;

A3 event: The signal quality of the adjacent cell is higher than that of the serving cell by an offset value;

A4 event: The signal quality of the adjacent cell is higher than the absolute threshold;

A5 event: The signal quality of the serving cell is lower than the absolute threshold 1, and the signal quality of the adjacent cell is higher than the absolute threshold 2;

Different system measurement events:

B1 event: the signal quality of the adjacent cell is higher than the absolute threshold;

B2 event: the signal quality of the serving cell is lower than the absolute threshold 1, and the signal quality of the adjacent cell is higher than the absolute threshold 2;

The serving cell configures the measurement event for the UE in the measurementConfiguration information element of the RRC Connection Reconfiguration message, including the name of the configured measurement event and related thresholds.

For the case where the serving cell is an aggregated cell, a new requirement is that the LTE-A UE can simultaneously receive and send data on multiple frequency bands. The attenuation between different frequency layers is different, and the coverage of aggregated carriers is different. When the signal quality of the UE's current reception and transmission data frequency band decreases, or the signal quality of the current non-service frequency band is better than the current service frequency band, the network side needs to be able to Change the working frequency band in time through the UE reporting events, thereby ensuring the correct and efficient transmission of UE data.

In the process of implementing the present invention, the inventor finds that there are at least the following problems in the prior art:

In the spectrum aggregation scenario, the existing measurement events cannot support the UE to comprehensively report the measurement results of the aggregated serving cell and neighboring cells.

Contents of the invention

Embodiments of the present invention provide a method and device for measurement reporting, so as to realize comprehensive measurement and reporting of measurement results by UEs in aggregated cells, thereby ensuring high-quality signals in the current service frequency band and correct and efficient transmission of UE data.

An embodiment of the present invention provides a method for measurement reporting, including the following steps:

Measure the frequency band signal quality of the serving cell and adjacent cells; when the frequency band signal quality of the serving cell and adjacent cells meets the measurement event requirements

Reporting the signal quality of the frequency band satisfying the measurement event to the serving cell.

An embodiment of the present invention provides a device for measurement reporting, including:

A measurement unit, used to measure the frequency band signal quality of the serving cell and adjacent cells;

A reporting unit, configured to report the frequency band signal quality meeting the measurement event to the serving cell when the frequency band signal quality of the serving cell and neighboring cells meets the measurement event requirement.

Compared with the prior art, the embodiments of the present invention have at least the following advantages:

Configure multi-band measurement events through user equipment, conduct comprehensive measurements on the spectrum aggregation serving cell and adjacent cells, and report the signal quality of the frequency band that meets the requirements of the measurement event, so that the current service frequency band has high-quality signals.

Description of drawings

Fig. 1 is a schematic flow chart of the method provided by the embodiment of the present invention;

Fig. 2 is a schematic flow chart of the method provided by the embodiment of the present invention;

Fig. 3 is a schematic structural diagram of a device provided by an embodiment of the present invention;

Fig. 4 is a schematic structural diagram of a device provided by an embodiment of the present invention.

Detailed ways

The present invention will be described below in conjunction with the accompanying drawings and specific embodiments.

An embodiment of the present invention provides a method for measurement reporting, as shown in FIG. 1 , including the following steps:

Step s101, measuring the frequency band signal quality of the serving cell and adjacent cells; when the frequency band signal quality of the serving cell and adjacent cells meets the measurement event requirements, execute step s102.

Step s102, reporting to the serving cell the signal quality of the frequency band satisfying the above measurement event.

By adopting the method provided by the embodiment of the present invention, the user equipment configures multi-band measurement events, conducts comprehensive measurements on the spectrum aggregation serving cell and adjacent cells, and reports the signal quality of the frequency band that meets the requirements of the measurement event, so that the current service frequency band has high quality signal of.

The present invention will be further introduced below in conjunction with specific application scenarios.

The embodiment of the present invention provides a measurement reporting method. For the aggregation scenario, that is, the serving cell or the adjacent cell is an aggregation cell, it is necessary to modify or add new measurement events in the prior art to fully report The signal quality of the serving cell and adjacent cell frequency bands.

Specifically, as shown in Figure 2, the following steps are included:

Step s201, configuring frequency band signal quality measurement events within and outside the service set of the spectrum aggregation serving cell;

When the serving cell is an aggregated cell, the frequency band for transmitting and receiving data currently used by the UE is measured, and when the signal quality of the frequency band for transmitting and receiving data currently used by the UE deteriorates, the frequency band switching within the cell is performed.

For the case where the serving cell is an aggregated cell, the concept of a serving set (Serving Set) is defined. The serving set is a set of frequencies that UE saves and monitors the PDCCH channel at the same time. The Serving Set can contain one main frequency or multiple frequencies.

When the Serving Set contains only one main frequency band, that is, the aggregated cell uses one main frequency band and the other as auxiliary frequency bands, a new measurement event needs to be added to use the frequency band with better signal quality as the main frequency band of the serving cell. When the signal quality of the main frequency band decreases, the measurement event is reported, and the main frequency band is changed through the serving cell to ensure that the UE can receive data with high quality.

When the Serving Set contains multiple frequency bands, that is, the UE can monitor some frequency bands in the serving cell at the same time, it is necessary to add a new measurement reporting event. When the signal quality of the current UE sending and receiving data frequency band decreases, report the measurement event and change the frequency band through the serving cell. , so as to ensure that the UE can receive data with high quality.

Serving Set contains only one main frequency band, which can be regarded as a special case of multiple frequency bands in Serving Set. Both need to add measurement events that can detect the signal quality inside and outside the Serving Set.

In the embodiment of the present invention, by measuring the signal quality in the current Serving set and outside the Serving set of the serving cell, when the signal quality of the current Serving Set in the serving cell decreases, the Serving Set frequency band is switched in time to ensure high-quality transmission of UE data.

Specifically, including:

A. Add new measurement events;

The above added measurement events include:

Measurement event AX: The signal quality of any frequency band in the current Serving set of the serving cell is lower than the preset threshold, and the signal quality of the frequency band outside the Serving set is higher than the signal quality of the frequency band in the current Serving set by an offset value.

This measurement event is applied to change the service frequency band when the signal quality of the frequency band in the current service concentration deteriorates. When the signal quality of any frequency band in the UE service set deteriorates, the network side changes the service frequency band of the UE according to the reported event, so as to avoid the degradation of data transmission quality.

After triggering this event, the set of frequency bands reported to the cell can be a frequency band whose signal quality in the Serving set is lower than that of the frequency bands outside the Serving set; or according to the weakening characteristics of the frequency band, only the highest frequency point outside the Serving set that meets the conditions can be reported. According to the attenuation characteristics of the frequency band, it can be approximated that the signal quality of the frequency point higher than this frequency point in the Serving set is lower than that of some frequency bands outside the Serving set, and the signal quality of the frequency point lower than this frequency point outside the Serving set meets the event.

Measurement event AY: The frequency band outside the Serving set is lower than the frequency band with the best signal quality in the serving set by an offset value.

This event prepares for changing the service frequency band on the network side. When the signal quality of certain frequency bands outside the serving cell becomes stronger, the network side reports the measurement event and switches frequency bands in time to obtain better service quality. Triggering this event to report the set of cells includes: the signal quality of all frequency bands outside the Serving set and all frequency bands in the Serving set that meet the conditions.

For the newly added measurement events Ax and Ay, add related event IDs and related thresholds in ReportConfigEUTRA informationelement.

ReportConfigEUTRA information element

-ASN1START

ReportConfigEUTRA::= SEQUENCE{

eventId CHOICE{

………………………

eventAx SEQUENCE{

ax-Threshold1 INTEGER(0) --value range FFS

ax-Threshold2 INTEGER(0) --value range FFS

},

eventAy SEQUENCE{

ay-Threshold INTEGER(0), --valuerange FFS

}

},

………………………

}

--ASN1STOP

B. Modify the neighbor cell measurement event;

The frequency band outside the current Serving set in the serving cell is regarded as the frequency band of the adjacent cell, the frequency band in the Serving set is regarded as the entire frequency band of the serving cell, the frequency band outside the serving set is regarded as the frequency band of the adjacent cell, and the adjacent cells are regarded as non- The aggregated cell is reported according to the measurement results of the adjacent cell-related measurement events A3A4A5, but the measurement-related threshold at this time, the offset in A3 event, the absolute threshold in A4, the absolute threshold 1 and absolute threshold 2 in A5 are based on the frequency bands of the serving cell Factors such as the weakening situation between different frequency bands and the signal quality and performance requirements of changing frequency bands may be different from the relevant thresholds reported by adjacent cells.

Step s202, configure frequency band quality measurement events of the serving cell and neighboring cells.

The above frequency band quality measurement includes EUTRA system frequency band measurement and inter-system frequency band measurement.

For EUTRA system frequency band measurement, it includes modification of measurement events in the prior art. Among them, modifying the measurement events reported by the serving cell quality includes modifying the following events:

A1 event: modify the signal quality of all frequency bands of the serving cell or do not require Gap measurement bands to be higher than the threshold; UE reports this event to indicate that the current serving cell signal quality is very good, and there is no need to measure the signal quality of adjacent cells. The network side can choose according to this event Turn off Measure Gap.

A2 event: Modify the signal quality of certain frequency bands in the serving cell or do not require Gap measurement frequency bands to be lower than the threshold; UE reports this event to indicate that the signal quality of certain frequency bands in the current UE serving cell is poor. According to this event, the network side may not be responsible for the UE Schedule data or consider handover on frequency bands with poor signal quality.

The modification of neighbor cell measurement events is based on two different assumptions:

Assumption 1: The UE is not aware of the aggregation of adjacent cells, and regards the adjacent cells as non-aggregated cells; that is, the aggregated adjacent cells are treated as several unrelated single-frequency cells.

In this case, for event A3: the signal quality of the neighboring cell is higher than the serving cell by an offset value, and for event A5: the signal quality of the serving cell is lower than the absolute threshold 1, and the signal quality of the neighboring cell is higher than the absolute threshold 2; if At this time, the serving cell is an aggregated cell, and the frequency bands for comparing adjacent cells with the aggregated serving cell can have the following options:

A. The best frequency in the Serving set; B. The best frequency band in all frequency bands of the serving cell. The advantage of these two reports is that unnecessary reports are reduced, that is, if there is a frequency band with good signal quality in the current serving cell, the frequency band can be used for signal transmission without cell handover. However, if the current serving cell happens to have good signal quality in one frequency band and poor signal quality in other frequency bands, and the UE uses high-speed services and needs services in multiple frequency bands, cell handover is required. At this time, the A3 event will not be reported, and can only be switched through A4 and A5.

C. The worst frequency in the Serving set. The advantage of this kind of reporting is that the signal quality of the neighboring cell is reported more fully. But at the same time, if the network side reports related events through the serving cell and changes the frequency band without switching the cell, the result of this kind of neighboring cell report will be useless.

D. The weighted average signal quality in Serving set, this method is a compromise between the first two methods.

Assumption 2: UE knows about the aggregation of adjacent cells;

When the serving cell is not an aggregated cell, but the measured adjacent cell is an aggregated cell, it is necessary to judge which signal quality of the adjacent cell to compare with the serving cell. There are two options: A. The frequency band with the best signal quality in the adjacent cell; B. The mean value or weighted mean value of the signal quality of the available frequency bands of adjacent cells.

When both the serving cell and the adjacent cell are aggregated cells, the following methods can be used for A3 and A5: A. The frequency band with the best signal quality in the adjacent cell and the best frequency in the Serving set of the serving cell or the best frequency in all frequency bands of the serving cell The best frequency bands are compared; B, the weighted average of the two is compared.

It is necessary to add a related indication which processing method to use in the configured related measurement event. Different measurement events can use the same comparison method, or they can be different.

Use one or more of the original adjacent cell measurement events A3, A4, and A5 to report the change of the signal quality of the frequency band outside the service set in the serving cell. For the same measurement event, the threshold used for reporting the adjacent cell and the frequency band outside the service set Can be different:

ReportConfigEUTRA information element

--ASN1START

ReportConfigEUTRA::= SEQUENCE{

eventId CHOICE{

………………………

eventA3 SEQUENCE{

a3_compare_indication INTEGER(0) --value range FFS

a3s-Threshold INTEGER(0) --value range FFS

a3n-Threshold INTEGER(0) --value range FFS

},

eventA4 SEQUENCE{

a4_compare_indication INTEGER(0) --value range FFS

a4s-Threshold INTEGER(0) --value range FFS

a4n-Threshold INTEGER(0) --value range FFS

}

eventA5 SEQUENCE{

a5_compare_indication INTEGER(0) --value range FFS

a5s-Threshold1 INTEGER(0) --value range FFS

a5n-Threshold1 INTEGER(0) --value range FFS

a5s-Threshold2 INTEGER(0) --value range FFS

a5n-Threshold2 INTEGER(0) --value range FFS

}

},

………………………

}

■ASN1STOP

ReportConfigEUTRA information element

■ASN1START

compare_indication INTEGER(0) --value range FFS

ReportConfigEUTRA::= SEQUENCE{

eventId CHOICE{

………………………

eventA3 SEQUENCE{

a3s-Threshold INTEGER(0) --value range FFS

a3n-Threshold INTEGER(0) --value range FFS

},

eventA4 SEQUENCE{

a4s-Threshold INTEGER(0) --value range FFS

a4n-Threshold INTEGER(0) --value range FFS

}

eventA5 SEQUENCE{

a5s-Threshold1 INTEGER(0) --value range FFS

a5n-Threshold1 INTEGER(0) --value range FFS

a5s-Threshold2 INTEGER(0) --value range FFS

a5n-Threshold2 INTEGER(0) --value range FFS

}

},

………………………

}

■ASN1STOP

For inter-system frequency band measurement, the modification of measurement events B1 and B2 is the same as the above-mentioned modification of measurement events A3, A4 and A5, and it is judged which signal quality in the spectrum aggregation cell is used for comparison in the two hypothetical cases.

Step s203, measuring the frequency band signal quality of the serving cell and neighboring cells according to the measurement events in the above steps;

Wherein, the UE performs periodic measurement on the serving cell, and at the same time searches for adjacent cells, and performs measurement on the searched adjacent cells according to the above measurement events.

Step s204, when the measured frequency band signal quality of the serving cell and neighboring cells meets the measurement event requirements, report the frequency band signal quality to the serving cell.

When the above-mentioned measured frequency band signal quality meets the measurement event requirements, the relevant measurement event is triggered, and the frequency band signal quality that meets the measurement event requirements is reported to the serving cell through the measurement report, and the serving cell receives the event measurement result reported by the UE, that is, the event meets the event requirements According to the signal quality of the frequency band, a suitable cell is selected for the UE to perform the handover operation according to the result, so as to ensure the current service quality of the UE.

By adopting the method provided by the embodiment of the present invention, the user equipment configures multi-band measurement events, conducts comprehensive measurements on the spectrum aggregation serving cell and adjacent cells, and reports the measurement results, so that the current service frequency band has high-quality signals.

An embodiment of the present invention provides a measurement reporting device, as shown in Figure 3, including:

The measurement unit 31 is used to measure the frequency band signal quality of the serving cell and adjacent cells;

The reporting unit 32 is configured to report the frequency band signal quality meeting the measurement event requirement to the serving cell when the frequency band signal quality of the serving cell and neighboring cells meets the measurement event requirement.

By using the device provided by the embodiment of the present invention, the user equipment configures multi-band measurement events, conducts comprehensive measurements on the spectrum aggregation serving cell and adjacent cells, and reports the signal quality of the frequency band that meets the requirements of the measurement event, so that the current service frequency band has high quality signal of.

An embodiment of the present invention provides a measurement reporting device, as shown in Figure 4, including:

The configuration unit 41 is configured to configure multi-band signal quality measurement events between the serving cell and the adjacent cell;

The measurement unit 42 is used to measure the frequency band signal quality of the serving cell and the adjacent cell, and determine whether the frequency band signal quality of the serving cell and the adjacent cell meets the measurement event requirements configured by the configuration unit 41;

The reporting unit 43 is configured to report to the serving cell the signal quality of the frequency band that satisfies the above measurement event.

Wherein, the above configuration unit 41 includes:

The internal configuration subunit 411 is configured to configure signal quality measurement events in the serving set and outside the serving set in the serving cell.

The service configuration subunit 412 is configured to configure multi-band measurement events of the serving cell.

The neighbor configuration subunit 413 is configured to configure the multi-band measurement event of the neighbor cell according to the aggregation of the serving cell and the neighbor cell.

The measuring unit 42 includes:

The periodic measurement subunit 421 is used to periodically measure the signal quality of the frequency band of the serving cell;

The adjacent measurement subunit 422 is configured to search for adjacent cells and measure the frequency band signal quality of the searched adjacent cells.

By using the device provided by the embodiment of the present invention, the user equipment configures multi-band measurement events, conducts comprehensive measurements on the spectrum aggregation serving cell and adjacent cells, and reports the signal quality of the frequency band that meets the requirements of the measurement event, so that the current service frequency band has high quality signal of.

Through the above description of the embodiments, those skilled in the art can clearly understand that the present invention can be realized by hardware, or by software plus a necessary general hardware platform. Based on this understanding, the technical solution of the present invention can be embodied in the form of software products, which can be stored in a non-volatile storage medium (which can be CD-ROM, U disk, mobile hard disk, etc.), including several The instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute the methods described in various embodiments of the present invention.

In a word, the above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (9)

1. the method that measurement reports is characterized in that, may further comprise the steps:

Interior and the outer band signal mass measurement event of services set of configuration service residential quarter services set;

Dispose described Serving cell and neighbor cell multi-band signal mass measurement event;

Measure the band signal quality of Serving cell and neighbor cell; When the band signal quality of described Serving cell and neighbor cell satisfies the measurement event requirement, report the band signal quality that satisfies described measurement event requirement to described Serving cell.

2. the method for claim 1 is characterized in that, described configuration service residential quarter and neighbor cell multi-band signal mass measurement event comprise:

The multiband measurement event of configuration service residential quarter; Described measurement event is specially: whole frequency bands of Serving cell or do not need Gap to measure the band signal quality to be higher than the threshold value that sets in advance; Serving cell partial-band or do not need Gap to measure the band signal quality to be lower than the threshold value that sets in advance;

Dispose the multiband measurement event of neighbor cell according to the polymerization situation of Serving cell and neighbor cell; Described polymerization situation comprises that described Serving cell is aggregation cell, and described neighbor cell is non-polymeric residential quarter; Or described Serving cell is non-polymeric residential quarter, and described neighbor cell is aggregation cell; Or described Serving cell and described neighbor cell all are aggregation cell.

3. the method for claim 1 is characterized in that, disposes in the described Serving cell services set to comprise with the outer band signal mass measurement event of services set:

Dispose the first measurement event, described the first measurement event is that arbitrary band signal quality is lower than the threshold value that sets in advance in the Serving cell current service collection, and the outer band signal quality of Serving cell current service collection is than the high bias of band signal quality in the current service collection;

Dispose the second measurement event, described the second measurement event is that the outer frequency band of Serving cell current service collection is than the low bias of the best frequency band of signal quality in the services set.

4. the method for claim 1 is characterized in that, the band signal quality of measuring Serving cell and neighbor cell comprises:

The described Serving cell band signal of periodic measurement quality;

Search for described neighbor cell and also measure the band signal quality of the neighbor cell that searches.

5. the method for claim 1 is characterized in that, reports the band signal quality that satisfies described measurement event requirement to be specially to described Serving cell:

When the band signal quality satisfies the measurement event requirement, trigger described measurement event, report the band signal quality that satisfies described measurement event to described Serving cell.

6. the device that measurement reports is characterized in that, comprising:

Dispensing unit is used for interior and the outer band signal mass measurement event of services set and described Serving cell and neighbor cell multi-band signal mass measurement event of services set in the configuration service residential quarter;

Measuring unit is for the band signal quality of measuring Serving cell and neighbor cell;

Report the unit, be used for when the band signal quality of described Serving cell and neighbor cell satisfies the measurement event requirement, report to described Serving cell and satisfy the band signal quality that described measurement event requires.

7. device as claimed in claim 6 is characterized in that, described dispensing unit comprises:

The internal configurations subelement is used for disposing the interior and outer band signal mass measurement event of services set of services set in the described Serving cell.

8. device as claimed in claim 6 is characterized in that, described dispensing unit also comprises:

The service configuration subelement is for the multiband measurement event of configuration service residential quarter;

The disposed adjacent subelement is used for the multiband measurement event according to the polymerization situation configuration neighbor cell of Serving cell and neighbor cell.

9. device as claimed in claim 6 is characterized in that, described measuring unit comprises:

The period measurement unit is used for the described Serving cell band signal of periodic measurement quality;

Adjacent measurement, the band signal quality that is used for searching for described neighbor cell and measures the neighbor cell that searches.

Images