WO2010034264A1

WO2010034264A1 - Method and device for measurement report

Info

Publication number: WO2010034264A1
Application number: PCT/CN2009/074281
Authority: WO
Inventors: 宋巍巍; 于映辉; 马慧; 王燕
Original assignee: 华为技术有限公司
Priority date: 2008-09-28
Filing date: 2009-09-28
Publication date: 2010-04-01
Also published as: CN101686472A; CN101686472B

Abstract

A method and a device for measurement report are provided in the embodiments of the present invention, and the method comprises the following steps that: measuring frequency band signal quality of the service cell and the neighbor cells; when the frequency band signal quality of the service cell and the neighbor cells fulfils a measurement event requirement, reporting the frequency band signal quality which fulfils the measurement event to the service cell. The embodiments of the present invention converges the service cell configuration measurement event in spectrum, which guarantees that the user equipment searches cells and performs complete measurement according the above measurement time, reports the frequency band signal quality which fulfils the measurement event requirement, and enables the current service frequency band to have a signal with good quality.

Description

Method and device for measuring report

The present application claims priority to Chinese Patent Application No. 2008-10169224, the entire disclosure of which is hereby incorporated by reference.

Technical field

The embodiments of the present invention relate to the field of communications, and in particular, to a method and an apparatus for measuring and reporting.

Background technique

At the World Radiocommunication Conference (WRC07) in Geneva, Switzerland, the International Telecommunications Union (ITU) has delineated four new frequency bands for the third and fourth generation mobile communication systems, namely 3. 4G~3. 6GHz. 200MHz bandwidth, 2. 3G~2. 4GHz 100MHz bandwidth, 698M~806MHz 108MHZ bandwidth and 450M~470MHz 20MHz bandwidth. However, due to the different distribution in different countries, the IMT frequency band finally obtained by each operator is likely to be discontinuous. Therefore, in order to ensure the quality of service for high-bandwidth and high-speed services, spectrum aggregation technology requirements are introduced into LTE-A (Long Term Evolution). -Advanced, long term evolution) system. Spectrum aggregation can be applied to both continuous and non-continuous 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 a cell at the configured frequency point, and performs measurement on the cell it searches for. After the UE obtains the measurement result, how to report the measurement result to the network side, there are two ways: periodic report and event trigger report. The invention relates to an event-triggered reporting method. The event-triggered reporting mode means that the network side defines multiple measurement reporting events, and the serving cell configures or modifies measurement events in the RRC Connection Reconfiguration for each connected UE. If the measurement result of the UE meets the measurement event requirement, the measurement result is triggered, and the measurement result that meets the measurement event requirement is reported to the serving cell through the measurement report, and the serving cell manages according to the measurement result and related radio resource management. The algorithm (RRM) makes the switching decision.

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

The EUTRA system measures events (including co-frequency and inter-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 neighboring cell is higher than the serving cell by an offset value;

A4 event: the signal quality of the neighboring 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 neighboring cell is higher than the absolute threshold 2;

Different system measurement events:

B1 event: the signal quality of the neighboring 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 neighboring cell is higher than the absolute threshold 2;

The UE configures the measurement event in the measuremen t Configuration cell of the RRC Connection Reconfiguration message, including configuring the name of the measurement event and the related threshold.

In the case where the serving cell is an aggregated cell, a new requirement is that the LTE-A UE can simultaneously receive and transmit data on multiple frequency bands. The attenuation between different frequency layers is different, and the coverage between the aggregated carriers is different. When the signal quality of the current receiving and transmitting data band of the UE is degraded, or the signal quality of the current non-serving frequency band is better than the current serving frequency band, the network side needs to be able to The operating frequency band is replaced in time by the UE reporting the event, thereby ensuring correct and efficient transmission of the UE data.

In the process of implementing the present invention, the inventors have found that at least the following problems exist in the prior art: In the spectrum aggregation scenario, the existing measurement event cannot support the UE to comprehensively report the measurement results of the aggregate serving cell and the neighboring cell. Summary of the invention

The embodiment of the invention provides a method and a device for measuring and reporting, so as to implement comprehensive measurement and report measurement results of the UE in the aggregated cell, so as to ensure that the current service frequency band has high quality signals, and ensure that the UE data is correctly and efficiently transmitted.

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

Measuring the frequency band signal quality of the serving cell and the neighboring cell; when the frequency band signal quality of the serving cell and the neighboring cell meets the measurement event requirement

The frequency band signal quality that satisfies the measurement event is reported to the serving cell.

An embodiment of the present invention provides an apparatus for measuring and reporting, including:

a measuring unit, configured to measure a frequency band signal quality of the serving cell and the neighboring cell;

The reporting unit is configured to report, when the frequency band signal quality of the serving cell and the neighboring cell meets the measurement event requirement, the frequency band signal quality that satisfies the measurement event to the serving cell.

Compared with the prior art, the embodiment of the invention has at least the following advantages:

The multi-band measurement event is configured by the user equipment, and the spectrum aggregation serving cell and the neighboring cell are comprehensively measured, and the quality of the frequency band signal satisfying the measurement event requirement is reported, so that the current service frequency band has a high quality signal. DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without paying creative labor.

FIG. 1 is a schematic flowchart of a method according to an embodiment of the present disclosure;

2 is a schematic flowchart of a method according to an embodiment of the present invention;

3 is a schematic structural diagram of an apparatus according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of an apparatus according to an embodiment of the present invention. detailed description

The invention is described below in conjunction with the drawings and specific embodiments.

An embodiment of the present invention provides a method for measuring reporting, as shown in FIG. 1 , including the following steps: Step slO1, measuring frequency band signal quality of a serving cell and a neighboring cell; and performing signal quality of a frequency band of a serving cell and a neighboring cell When the measurement event requirement is met, step sl02 is executed.

Step sl02, reporting the frequency band signal quality that satisfies the above measurement event to the serving cell.

By using the method provided by the embodiment of the present invention, the user equipment configures a multi-band measurement event, performs comprehensive measurement on the spectrum aggregation serving cell and the neighboring cell, and reports the frequency band signal quality that satisfies the measurement event requirement, so that the current service frequency band has high quality. signal of. The present invention will be further described below in conjunction with specific application scenarios.

The embodiment of the present invention provides a method for measuring a report. In the case of an aggregation scenario, that is, a serving cell or a neighboring cell is an aggregated cell, it is necessary to modify a measurement event in the prior art or add a new measurement event to be fully reported. Signal quality of the serving cell and the adjacent cell band.

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

Step s201: Configure a frequency band signal quality measurement event in a spectrum aggregation service cell service set and a service set outside the service set;

When the serving cell is an aggregated cell, the data transmission and reception data band currently used by the UE is measured, and when the quality of the current data band of the data transmission and reception of the UE decreases, the intra-cell frequency band switching is performed.

For the case where the serving cell is an aggregated cell, the concept of a Serving Set is defined. The service set, that is, the UE, stores a frequency set that simultaneously monitors the PDCCH channel, and the Serving Set may include one main frequency or multiple frequencies.

When the Serving Set contains only one primary frequency band, that is, the aggregated cell adopts one mode of the primary frequency band and the other is the secondary frequency band, and a new measurement event is needed to use the frequency band with better signal quality as the serving cell. Main frequency band. When the quality of the mainband signal is degraded, the measurement event is reported, and the primary frequency band is replaced by the serving cell to ensure that the UE can receive data with high quality.

When a plurality of frequency bands are included in the Serving Set, that is, the UE can simultaneously monitor certain frequency bands in the serving cell, and a new measurement reporting event needs to be added. When the current UE receives and receives data band signal quality degradation, the measurement event is reported, and the frequency band is replaced by the serving cell. , thereby ensuring that the UE can receive data with high quality.

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

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

Specifically, including:

A. Add new measurement events;

The above added measurement events include:

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

The measurement event is applied to replace the service band when the signal quality of the current service set band is degraded. When the signal quality of any frequency band in the UE service set deteriorates, the network side replaces the UE service frequency band according to the reported event, thereby preventing the data transmission quality from degrading.

The frequency band set of the reporting cell after the event is triggered may be a frequency band that satisfies the condition that the signal quality in the Serving set is lower than the outer band of the Serving set; or may only report the highest frequency point outside the Serving set that satisfies the condition according to the weakening characteristic of the frequency band. According to the weakening characteristic of the frequency band, it can be approximated that the frequency of the frequency signal higher than the frequency point in the Serving set is lower than some frequency bands outside the Serving set, and the signal quality lower than the frequency of the Serving set satisfies the event. Measurement event AY: The Serving set outer band is one offset lower than the best signal band in the service set.

This event prepares the network side to replace the service band. When the signal quality of some frequency bands outside the serving cell becomes stronger, the network side reports the measurement event according to the measurement event, and switches the frequency band in time to obtain better quality of service. The triggering of the event reporting cell set includes: satisfying the condition Serving set outer band and the signal quality of all frequency bands in the Serving se t.

For the new measurement event Ax, Ay, 3⁄4 ReportConf igEUTRA information el ement, add the relevant event ID and related threshold.

ReportConf igEUTRA information element

- ASN1START

ReportConfigEUTRA :: = SEQUENCE {

Eventld CHOICE {

Event Ax SEQUENCE {

Ax - Thre sh oldl INTEGER (0) value range FFS ax - Thre sh old2 INTEGER (0) value range FFS

},

e vent Ay SEQUENCE {

ay-Threshold INTEGER (0), value range FFS

}

-- ASN1STOP

B. Modify the neighboring area measurement event;

The current Serving set outer frequency band in the serving cell is regarded as the frequency band of the neighboring cell, and the Servings internal frequency band is regarded as the entire frequency band of the serving cell, and the frequency band outside the service set is regarded as the frequency band of the neighboring cell, and the adjacent cells are regarded as The non-aggregated cell is reported according to the measurement result of the neighboring cell related measurement event A3 A4 A5, but the measurement related threshold at this time, the offset in the A3 event, the absolute threshold in A4, the absolute threshold 1 in A 5 and the absolute threshold 2 are based on The weakening condition between the frequency bands of the serving cell and the requirements for replacing the quality and performance of the frequency band signal are determined, which may be different from the related thresholds reported by the neighboring cells.

Step s202: Configure a quality measurement event of the serving cell and the adjacent cell band.

The measurement of the above band quality includes EUTRA system band measurement and different system band measurement.

For EUTRA system band measurements, modifications to the measurement events in the prior art are included. among them, Modifications to the measurement events reported by the quality of the serving cell include modifications to the following events:

The A1 event is modified to be the entire frequency band of the serving cell or does not require the Gap measurement band signal quality to be higher than the threshold; the UE reports the event indicating that the current serving cell signal quality is good, and does not need to measure the signal quality of the neighboring cell, and the network side can select according to the event. Turn off the measurement Gap.

The A2 event is modified to be a certain frequency band of the serving cell or does not require the Gap measurement band signal quality to be lower than the threshold; the UE reporting the event indicates that the current UE serving cell signal is inferior in some frequency bands, and the network side may not be the UE according to the event. Scheduling data in a frequency band with poor signal quality or considering switching.

The modification of measurement events for neighboring cells is based on two different assumptions:

Assumption 1: The UE does not know the aggregation situation of the neighboring cells, and regards the neighboring cells as non-aggregated cells; that is, the aggregated neighboring cells are treated as unrelated single-frequency cells.

In this case, for the A3 event: the signal quality of the neighboring cell is higher than the serving cell by an offset value, and the A5 event: 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; At this time, the serving cell is an aggregated cell, and the frequency band in which the neighboring cell compares with the aggregated serving cell may 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 types of reporting is that unnecessary reporting is reduced, that is, if there is a frequency band with a good signal quality in the current serving cell, the frequency band can be used for signal transmission without performing cell switching. However, if the current serving cell has a good signal quality in one frequency band and the signal quality in other frequency bands is poor, and the UE uses high-speed services and needs multiple frequency band services, cell switching is required. At this time, the A3 event will not be reported, and it can only be switched through A4 and A5.

C. The worst frequency in the Serving set. The advantage of this reporting is that the signal quality of the neighboring area is reported to be more sufficient. At the same time, if the network side reports the relevant event through the serving cell and replaces the frequency band without switching the cell, the neighboring area reports the result. Will be useless.

D, the weighted average signal quality in the Serving set, which is a compromise between the first two. Hypothesis 2: The UE knows the aggregation of neighboring cells;

When the serving cell is not an aggregated cell, and the measured neighboring cell is an aggregated cell, it needs to be judged. By comparing which signal quality of the neighboring cell is compared with the serving cell, there are two options: A. The best frequency band of the phased cell signal quality; B. The mean or weighted average of the available band signal quality of the neighboring cell.

When the serving cell and the neighboring cell are both aggregated cells, the following manners can be adopted for A3 and A5: A. The best frequency band of the adjacent cell signal quality and the best frequency in the Serving set of the serving cell or the most of all the frequency bands of the serving cell The good frequency band is compared; B. The weighted average of the two is compared. In the relevant measurement event of the configuration, it is necessary to increase the relevant indication to adopt which processing method. Different measurement events can be the same or different.

Using the original neighboring cell to measure one or more of the events A3, A4, and A5 to report the change of the signal quality of the out-of-band frequency band in the serving cell, and the threshold used by the neighboring cell and the outer band of the service set for the same measurement event Can be different:

ReportConfigEUTRA information element

-- ASN1 START

ReportConfigEUTRA :: - SEQUENCE {

Eventld CHOICE {

Event A3 SEQUENCE {

A3_compare_indication INTEGER (0) value ige FFS a3s-Threshold INTEGER (0 value nge FFS a3n-Threshold INTEGER (0) value iige FFS eventA4 SEQUENCE {

A4_compare_indication INTEGER (0) value ige FFS a4s-Threshold INTEGER (0) value age FFS a4n-Threshold INTEGER (0) value age FFS event A5 SEQUENCE {

A5_compare_indication INTEGER (0) due nge FFS a5s-Thresholdl INTEGER (0) alue nge FFS a5n-Thresholdl INTEGER (0) alue nge FFS a5s-Threshold2 INTEGER (0) due age FFS a5n-Threshold2 INTEGER (0) alue nge FFS

■ ASN1 STOP

ReportConfigEUTRA information element

■ ASN1 START

Compare indication INTEGER (0) value range FFS ReportConfigEUTRA ::: SEQUENCE {

Eventld CHOICE {

Event A3 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 event A5 SEQUENCE {

a5s-Thresholdl INTEGER (0) value ige FFS a5n-Thresholdl INTEGER (0) value ige FFS a5s-Threshold2 INTEGER (0) value ige FFS a5n-Threshold2 INTEGER (0) value ige FFS

■ ASN1 STOP

For the different system band measurement, the modification of the measurement events Bl, B2 is the same as the above modification of the measurement events A3, A4 and A5, and it is judged in which case which signal quality in the spectrum aggregation cell is used for comparison.

Step s203: Measure a frequency band signal quality of the serving cell and the neighboring cell according to the measurement event in the foregoing step;

The UE performs periodic measurement on the serving cell, searches for neighboring cells at the same time, and performs measurement on the searched neighboring cells according to the foregoing measurement event.

Step s204: When the signal quality of the measured serving cell and the neighboring cell band meets the measurement event requirement, the signal quality of the frequency band is reported to the serving cell.

When the measured signal quality of the frequency band meets the measurement event requirement, the related measurement event is triggered, and the quality of the frequency band signal that meets the measurement event requirement is reported to the serving cell by the measurement report, and the serving cell receives the event measurement result reported by the UE, that is, the event requirement is met. According to the result, the UE selects a suitable cell to perform a handover operation according to the result, and ensures the current service quality of the UE.

By using the method provided by the embodiment of the present invention, the user equipment configures a multi-band measurement event, performs comprehensive measurement on the spectrum aggregation serving cell and the neighboring cell, and reports the measurement result, so that the current service frequency band has a high-quality signal.

An embodiment of the present invention provides a device for measuring and reporting, as shown in FIG. 3, including:

The measuring unit 31 is configured to measure frequency band signal quality of the serving cell and the neighboring cell; The reporting unit 32 is configured to report, when the frequency band signal quality of the serving cell and the neighboring cell meets the measurement event requirement, the quality of the frequency band signal that meets the measurement event requirement is reported to the serving cell.

By using the apparatus provided by the embodiment of the present invention, the user equipment configures a multi-band measurement event, performs comprehensive measurement on the spectrum aggregation serving cell and the neighboring cell, and reports the frequency band signal quality that satisfies the measurement event requirement, so that the current service frequency band has high quality. signal of. An embodiment of the present invention provides a device for measuring and reporting, as shown in FIG. 4, including:

The configuration unit 41 is configured to configure a multi-band signal quality measurement event of the serving cell and the neighboring cell. The measuring unit 42 is configured to measure the frequency band signal quality of the serving cell and the neighboring cell, and determine whether the quality of the frequency band signal of the serving cell and the neighboring cell is The reporting event requirement is met by the configuration unit 41. The reporting unit 43 is configured to report the quality of the frequency band signal that satisfies the measurement event to the serving cell. The configuration unit 41 includes:

The internal configuration sub-unit 411 is configured to configure a signal quality measurement event in the service set and the service set outer band in the serving cell.

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

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

The measuring unit 42 includes:

The period measurement subunit 421 is configured to periodically measure the serving cell frequency band signal quality; the neighboring measurement subunit 422 is configured to search for the neighboring cell and measure the frequency band signal quality of the searched neighboring cell.

By using the apparatus provided by the embodiment of the present invention, the user equipment configures a multi-band measurement event, performs comprehensive measurement on the spectrum aggregation serving cell and the neighboring cell, and reports the frequency band signal quality that satisfies the measurement event requirement, so that the current service frequency band has high quality. signal of. Through the description of the above embodiments, those skilled in the art can clearly understand the present invention. It can be implemented in hardware or by means of software plus the necessary general hardware platform. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a USB flash drive, a mobile hard disk, etc.), including several The instructions are for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments of the present invention.

In summary, the above description is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims

Claim

A method for measuring and reporting, characterized in that it comprises the following steps:

The frequency band signal quality that satisfies the measurement event requirement is reported to the serving cell.

2. The method of claim 1, further comprising:

And configuring, by the serving cell and the neighboring cell, a multi-band signal quality measurement event.

3. The method according to claim 2, wherein the configuring the serving cell multi-band signal quality measurement event comprises:

And configuring the serving cell service set and the service set outer band signal quality measurement event.

The method according to claim 2, wherein the configuring the serving cell and the adjacent cell multi-band signal quality measurement event comprises:

Configuring a multi-band measurement event of the serving cell; the measurement event is specifically: the total frequency of the serving cell or the Gap measurement band signal quality is higher than a preset threshold; the serving cell partial frequency band or the Gap measurement band signal quality is lower than the pre-predetermined Set threshold;

Configuring a multi-band measurement event of the neighboring cell according to the aggregation situation of the serving cell and the neighboring cell; the aggregation situation includes the serving cell being an aggregated cell, the neighboring cell being a non-aggregated cell; or the serving cell being non- And the neighboring cell is an aggregated cell; or the serving cell and the neighboring cell are both aggregated cells.

The method according to claim 3, wherein configuring the service cell service set and the service set outer band signal quality measurement event comprises:

Configuring a first measurement event, where the signal quality of any frequency band in the current service set of the serving cell is lower than a preset threshold, and the signal quality of the current service set outer band of the serving cell is higher than that of the current service set. An offset value;

Configuring a second measurement event, where the second measurement event is a current service set outer band ratio of the serving cell The signal quality within the service set is preferably one band lower than the offset value.

The method according to claim 1, wherein measuring the frequency band signal quality of the serving cell and the neighboring cell comprises:

Periodically measuring the signal quality of the serving cell band;

Searching for the neighboring cell and measuring the frequency band signal quality of the searched neighboring cell.

The method according to claim 1, wherein the signal quality of the frequency band that satisfies the measurement event requirement is reported to the serving cell:

When the frequency band signal quality meets the measurement event requirement, the measurement event is triggered, and the quality of the frequency band signal satisfying the measurement event is reported to the serving cell.

8. A device for measuring and reporting, characterized in that it comprises:

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

9. The device of claim 8, further comprising:

And a configuration unit, configured to configure a multi-band signal quality measurement event of the serving cell and the neighboring cell.

The apparatus according to claim 9, wherein the configuration unit comprises: an internal configuration subunit, configured to configure a service set in the service cell and a service set outband signal quality measurement event.

The apparatus according to claim 10, wherein the configuration unit further comprises: a service configuration subunit, configured to configure a multi-band measurement event of the serving cell;

The neighboring configuration subunit is configured to configure a multi-band measurement event of the adjacent cell according to the aggregation situation of the serving cell and the neighboring cell.

The device according to claim 8, wherein the signal measuring unit comprises: a period measuring unit, configured to periodically measure a signal quality of the serving cell band;

a neighboring measurement unit, configured to search the neighboring cell and measure a frequency band of the searched neighboring cell Signal quality.