CN101426224A - Method, system and equipment for measurement result reporting - Google Patents
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Abstract
An embodiment of the invention discloses a measured result reporting method which comprises the following procedures: measuring the current parameter of pilot channel for obtaining the current measurement result; comparing the current measurement result with the stored measurement result, and reporting the measurement result when the comparing result satisfies the reporting condition. The embodiment of the invention simultaneously discloses a measurement result reporting system and device. The user terminal (UE) can report the current measurement result of pivot channel to a base station (NodeB) with the method, system and device described by the embodiment of the invention thereby the subsequent NodeB can schedule satisfying the current signal channel according to the received measurement result for increasing the service quality of network.
Description
Technical Field
The present invention relates to mobile communication technologies, and in particular, to a method, a system, and a device for reporting a channel quality measurement result in a communication system.
Background
In the protocol version of R7, a common Channel data transmission state (CELL-FACH) enhancement function is introduced, and a User Equipment (UE) supports receiving Downlink data through a High Speed Downlink Shared Channel (HS-DSCH) in the CELL-FACH state. In the uplink direction, the UE needs to report whether the transmitted data is correctly received, and the measured information such as the current pilot channel quality. Since the uplink of CELL _ FACH adopts Random Access Channel (RACH), it is impossible to transmit feedback information such as Channel Quality Indication (CQI) and Acknowledgement (ACK), so that the UE can only report the corresponding measurement result through the RACH.
Fig. 1 is a schematic diagram of a measurement result reported by a UE in the prior art. As shown in fig. 1, the UE measures parameters such as Received Signal Power Code (RSCP) of a pilot channel or chip energy (Ec)/noise Power density (N0) according to relevant parameters configured in a System Information Block (SIB) 11/SIB12 broadcasted within a Cell, such as Cell selection relevant Information, an intra-frequency measurement indication, or an inter-frequency measurement indication, and reports a measurement result to a Radio Network Controller (RNC) through a Cell Update message sent on an RACH channel during a UE position change or a periodic Cell Update (Cell Update). The RNC carries the measurement result received from the RACH channel in a 'transmission Power Level' header field of an HS-DSCH Frame Protocol (FP, Frame Protocol) data Frame header and sends the measurement result to a base station (NodeB). And the NodeB performs scheduling according to the measurement result, for example, configures a High Speed Shared control Channel (HS-SCCH) and a multi-Channel selection (MCS) for High Speed physical downlink Shared Channel (HS-PDSCH) transmission, and a transmission power for the UE.
In the scheme shown in fig. 1, although the UE can measure the RSCP or Ec/N0 of the pilot channel in real time according to the parameters in the system message SIB11/SIB12, the measured measurement result can be reported to the RNC only when the Cell Update procedure is performed. Therefore, when the channel environment changes and the original reported measurement result no longer conforms to the current channel environment, if the Cell Update message is not sent, the UE cannot report a new measurement result to the RNC, so that the NodeB cannot perform scheduling conforming to the current situation according to the current channel environment, thereby affecting the Quality of Service (QoS) of the network.
Disclosure of Invention
The embodiment of the invention provides a method for reporting a measurement result, which can improve the service quality of a network.
The embodiment of the invention provides a system for reporting a measurement result, which can improve the service quality of a network.
The embodiment of the invention provides a device for reporting a measurement result, which can improve the service quality of a network.
The technical scheme of the embodiment of the invention is realized as follows:
a method for reporting a measurement result comprises the following steps:
measuring the current parameters of the pilot channel to obtain the current measurement result;
and comparing the current measurement result with the stored measurement result, and reporting the current measurement result when the comparison result meets the reporting condition.
A measurement result reporting device, the device comprising: the device comprises a receiving unit, a comparing unit and a reporting unit;
the receiving unit is used for receiving the current measurement result periodically reported by the user equipment UE;
the comparison unit is used for comparing whether the absolute value of the difference value between the current measurement result received by the receiving unit and the previous reported measurement result pre-stored by the receiving unit is greater than or equal to the set reporting threshold or not;
and the reporting unit is used for reporting the current measurement result when the comparison result shows that the absolute value of the difference is greater than or equal to a set reporting threshold.
A measurement result reporting device, the device comprising: the device comprises a receiving unit, a comparing unit and a reporting unit;
the receiving unit is used for receiving a difference value between a current measurement result periodically reported by the User Equipment (UE) and a measurement result which is prestored and reported last time;
the comparing unit is used for comparing whether the absolute value of the difference value received by the receiving unit is greater than or equal to a set reporting threshold or not;
and the reporting unit is used for reporting the current measurement result when the comparison result shows that the absolute value of the difference is greater than or equal to a set reporting threshold.
A measurement result reporting device, the device comprising: the device comprises a measuring unit, a comparing unit and a reporting unit;
the measuring unit is used for measuring the current parameters of the pilot channel and obtaining the current measuring result;
the comparison unit is used for comparing the current measurement result in the measurement unit with the measurement result stored by the comparison unit;
and the reporting unit is used for reporting the current measurement result in the measurement unit when the comparison result of the comparison unit meets the stored reporting condition.
A measurement result reporting system comprises: reporting a subsystem and a base station NodeB;
the reporting subsystem is used for measuring the current parameters of the pilot channel, obtaining the current measurement result, comparing the current measurement result with the stored measurement result, and reporting the current measurement result to the NodeB when the comparison result meets the reporting condition;
and the NodeB is used for receiving the current measurement result reported by the reporting subsystem.
It can be seen that, by adopting the technical scheme of the embodiment of the present invention, the current parameters of the pilot channel are measured, the current measurement result is compared with the stored measurement result, and when the comparison result meets the reporting condition, the current measurement result is reported. Compared with the prior art, the scheme of the embodiment of the invention is not limited to reporting the measurement result of the pilot channel in the CellUpdate process any more, but after the measurement result of the pilot channel is obtained, if the preset reporting condition is met through comparison, the measurement result is reported, so that the subsequent NodeB can schedule according with the current channel environment in time according to the received measurement result, and the network service quality is improved.
Drawings
Fig. 1 is a schematic diagram of a measurement result reported by a UE in the prior art.
FIG. 2 is a flow chart of a first embodiment of the method of the present invention.
FIG. 3 is a flow chart of a second embodiment of the method of the present invention.
Fig. 4 is a schematic structural diagram of the system according to the embodiment of the present invention.
FIG. 5 is a schematic structural diagram of a first embodiment of the apparatus of the present invention.
FIG. 6 is a schematic diagram of the composition of a second embodiment of the apparatus of the present invention.
Detailed Description
In the embodiment of the invention, the current parameters of the pilot channel are measured to obtain the current measurement result; and comparing the current measurement result with the stored measurement result, and reporting the current measurement result when the comparison result meets the reporting condition.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings by way of examples.
FIG. 2 is a flow chart of a first embodiment of the method of the present invention. As shown in fig. 2, the following steps may be included:
201: and measuring the current parameters of the pilot channel and acquiring the current measurement result.
In this step, the UE obtains the current measurement result by measuring the current parameter of the pilot channel. The specific measurement method can adopt the measurement method in the prior art. How to measure is not the key to realize the scheme of the invention and is not described in detail.
The pilot channel parameter may be RSCP, Ec/N0, or the like.
202: and comparing the current measurement result with the stored measurement result, and reporting the current measurement result when the comparison result meets the reporting condition.
In this step, the current measurement result is compared with a measurement result that is previously stored and reported last time, for example, whether the absolute value of the difference between the current measurement result and the measurement result is greater than or equal to a preset reporting threshold is judged, if so, the current measurement result is reported, otherwise, the reporting is not performed. For the measurement result obtained by the first measurement, the measurement result corresponding to the measurement result reported last time does not exist, so the measurement result can be directly reported without comparison.
In practical applications, the measurement and comparison described in 201 and 202 can be performed by the UE alone or by the UE and the RNC in combination. And when the comparison result meets the reporting condition, reporting the current measurement result to the NodeB by the RNC. Wherein, the measurement is completed by the UE, and the comparison can be completed by the UE or the RNC.
It should be noted that the embodiment shown in fig. 2 is only an example, and is not used to limit the technical solution of the present invention. For example, in practical applications, the reporting condition mentioned in 202 may be reporting only if the current measurement result is different from the stored measurement result, and does not need to be compared with the reporting threshold. In addition, when comparing, other known comparison methods can be adopted besides the method of comparing the current measurement result with the measurement result which is stored in advance and reported last time.
It can be seen that, compared with the prior art, the solution of the embodiment of the present invention is not limited to reporting the measurement result of the pilot channel in the CellUpdate process, but reports the measurement result of the pilot channel if the measurement result is obtained and the preset reporting condition is satisfied by comparison, so that the subsequent NodeB can schedule the channel according with the current channel environment in time according to the received measurement result, thereby improving the network service quality.
The embodiments of the present invention are described in further detail below with reference to specific examples.
FIG. 3 is a flow chart of a second embodiment of the method of the present invention. In this embodiment, the UE completes the measurement and comparison functions at the same time. In this embodiment, the UE measures the current parameter of the pilot channel in real time, such as the value of RSCP or Ec/N0, obtains the current measurement result, compares the current measurement result with the measurement result that is previously stored and reported last time, and determines whether to report the current measurement result according to the comparison result. As shown in fig. 3, the following steps may be included:
301: and the UE measures the current parameters of the pilot channel to obtain the current measurement result.
Before this step, may further include: and the RNC transmits the expanded system message SIB11/SIB12 to the UE through cell broadcasting. The extension mentioned here refers to adding two new cells in the system message SIB11/SIB12, where one cell is used to carry information indicating whether the UE needs to report the measurement result according to the change of the channel environment, and the other cell is used to carry reporting conditions. Wherein the indication information may be set to 0 or 1. For example, when the indication information is 1, it indicates that the RNC needs the UE to report the current measurement result according to the channel environment change, and when the indication information is 0, it indicates that the RNC does not need the UE to report the current measurement result according to the channel environment change. When RNC does not need UE to report current measurement result according to channel environment change, cell carrying report condition information can be set to null.
For example, in this embodiment, the first cell may carry information indicating whether the UE needs to perform difference detection reporting according to the current measurement result and the measurement result stored last time, and the other cell is used to carry reporting threshold information.
In the above process, the RNC may determine whether the UE needs to report the current measurement result according to the difference value according to the actual situation. For example, if the RNC determines that the UE is in the CELL _ FACH enhanced state, it may be determined that the UE needs to report the current measurement result according to the difference.
And the UE measures the current parameters of the pilot channel according to the indication information carried in the received system message SIB11/SIB 12.
302: and the UE calculates the absolute value of the difference between the current measurement result and the stored measurement result reported last time.
303: the UE compares whether the calculated absolute value of the difference is greater than or equal to a preset reporting threshold, if so, 304 is executed; otherwise, return to execute 301.
The preset reporting threshold mentioned in this step is the reporting threshold carried in the system message SIB11/SIB12 sent by the RNC to the UE. UE compares the absolute value of the difference between the current measurement result and the previous reported measurement result to see if the absolute value is greater than or equal to the reporting threshold, and executes different operations according to the comparison result: if so, then 304 is performed; otherwise, it can be considered that the change of the current channel environment does not significantly affect the scheduling of the NodeB, and the current change is ignored, and the process returns to execute 301.
In general, the value of the reporting threshold may be set to 4-10 dB, but in practical applications, the specific value of the reporting threshold needs to be determined according to the current usage environment and network conditions.
304: and the UE reports the current measurement result to the NodeB through the RNC.
In this step, reference may be made to the method in the prior art for how to report the measurement result, and details are not described herein.
Further, in the subsequent process, the NodeB may perform scheduling according to the received measurement result, for example, reconfigure the retransmission times and the transmission power for the UE. How to perform scheduling is the prior art and is not described in detail.
305: the UE updates the saved measurement results and then returns to 301.
The UE updates the stored measurement result reported last time with the current measurement result reported this time for the next comparison, and then returns to 301, that is, measures the current parameter of the pilot channel again, and determines whether to report according to the situation, which is not described herein again.
It should be noted that fig. 3 is only an example, and is not used to limit the technical solution of the present invention. For example, before 301, the indication that whether difference detection reporting is required and the reporting threshold information are sent to the UE by the RNC may be carried by using the system message SIB11/SIB12 shown in fig. 3, or may be carried by using a dedicated measurement control message of the Uu interface or a custom message, and the specific implementation manner is not limited. Moreover, the scheme of the embodiment of the invention is not only suitable for the CELL _ FACH enhanced state, but also suitable for other Radio Resource Control (RRC) states, such as a CELL-Dedicated connection (CELL _ DCH) state.
Fig. 3 shows an implementation procedure of the scheme of the present invention when the UE independently completes measurement and comparison. In practical applications, the UE may perform the measurement and the RNC may perform the comparison. The specific implementation mode can be as follows:
and the RNC transmits a message to the UE, wherein the message carries an indication whether the periodical reporting is needed or not and reporting period information.
The issued message may be the system message SIB11/SIB12 mentioned in the embodiment shown in fig. 3, or may be a dedicated measurement control message through the Uu port, or a custom message.
UE measures the current parameter of the pilot channel, obtain the present measuring result, and report the present measuring result to RNC periodically; and the RNC compares whether the absolute value of the difference value between the current measurement result and the measurement result which is prestored by the RNC and reported last time is greater than or equal to the set reporting threshold, and if so, the RNC reports the current measurement result to the NodeB.
Or, the UE measures the current parameter of the pilot channel to obtain the current measurement result, and periodically calculates the difference value between the current measurement result and the measurement result which is prestored and reported last time, and reports the difference value to the RNC; and the RNC compares whether the absolute value of the received difference value is greater than or equal to the set reporting threshold, and if so, reports the current measurement result to the NodeB.
The UE can report the calculated difference value to the RNC and report the current measurement result so that the subsequent RNC can report the current measurement result to the NodeB; or, the RNC stores the measurement result when the UE reports for the first time, and then adds the difference value to the measurement result reported for the first time every time the difference value reported by the UE is received, thereby obtaining the current measurement result.
Therefore, when the comparison is completed by the RNC, the current measurement result of the pilot channel can be reported to the NodeB in time, so that the subsequent NodeB can schedule according with the current channel environment in time according to the received measurement result, and the network service quality is improved.
Based on the above method, fig. 4 is a schematic diagram of a composition structure of an embodiment of the system of the present invention. The method flows shown in fig. 2 and fig. 3 can be implemented based on the system shown in fig. 4. As shown in fig. 4, the system includes: reporting subsystem 41 and NodeB 42;
a reporting subsystem 41, configured to measure a current parameter of the pilot channel, obtain a current measurement result, compare the current measurement result with a stored measurement result, and report the current measurement result to the NodeB42 when the comparison result meets a reporting condition;
and the NodeB42 is configured to receive the current measurement result reported by the reporting subsystem 41.
The reporting subsystem 41 further includes: UE411 and RNC 412;
the UE411 is configured to measure a current pilot channel parameter, obtain a current measurement result, compare whether an absolute value of a difference between the current measurement result and a measurement result that is pre-stored and reported last time is greater than or equal to a set reporting threshold, and if so, report the current measurement result to the RNC 412;
the RNC412 is configured to report the current measurement result received from the UE411 to the NodeB 42.
Or,
the UE411 is configured to measure a current pilot channel parameter, obtain a current measurement result, and periodically report the current measurement result to the RNC 412;
the RNC412 is configured to compare whether an absolute value of a difference between the current measurement result received from the UE411 and a measurement result reported last time that is pre-stored is greater than or equal to a set reporting threshold, and if so, report the current measurement result to the NodeB 42.
Or,
the UE411 is configured to measure a current pilot channel parameter, obtain a current measurement result, periodically calculate a difference between the current measurement result and a measurement result that is pre-stored and reported last time, and report the difference to the RNC 412;
and the RNC is configured to compare whether the absolute value of the difference received from the UE411 is greater than or equal to the set reporting threshold, and if so, report the current measurement result to the NodeB 42.
FIG. 5 is a schematic structural diagram of a first embodiment of the apparatus of the present invention. As shown in fig. 5, the apparatus includes: a measuring unit 51, a comparing unit 52 and a reporting unit 53;
a measuring unit 51, configured to measure a current parameter of the pilot channel, and obtain a current measurement result;
a comparison unit 52 for comparing the current measurement result in the measurement unit 51 with the measurement result stored by itself;
a reporting unit 53, configured to report the current measurement result in the measurement unit 51 when the comparison result of the comparing unit 52 meets the stored reporting condition.
In addition, the apparatus shown in fig. 5 may further include: a receiving unit 54, configured to receive a message sent from the RNC, where the message carries an indication that difference detection reporting is required, and reporting threshold information; the measurement unit 51 measures the current parameters of the pilot channel according to the indication in the message, and obtains the current measurement result; the comparing unit 52 compares whether the absolute value of the difference between the current measurement result and the measurement result reported last time, which is pre-stored, is greater than or equal to the set reporting threshold; when the comparison result is greater than or equal to the set reporting threshold, the reporting unit 53 reports the current measurement result.
The comparing unit 52 may be further configured to update the stored measurement result with the reported current measurement result when the reporting unit 53 completes reporting.
FIG. 6 is a schematic diagram of the composition of a second embodiment of the apparatus of the present invention. As shown in fig. 6, the apparatus includes: a receiving unit 61, a comparing unit 62 and a reporting unit 63;
a receiving unit 61, configured to receive a current measurement result periodically reported by the UE;
a comparing unit 62, configured to compare whether an absolute value of a difference between the current measurement result received by the receiving unit 61 and a previous measurement result pre-stored by the receiving unit is greater than or equal to a set reporting threshold;
and a reporting unit 63, configured to report the current measurement result when the comparison result is that the absolute value of the difference is greater than or equal to the set reporting threshold.
Or,
a receiving unit 61, configured to receive a difference between a current measurement result periodically reported by the UE and a measurement result previously reported and stored in advance;
a comparing unit 62, configured to compare whether the absolute value of the difference value received by the receiving unit 61 is greater than or equal to a set reporting threshold;
and a reporting unit 63, configured to report the current measurement result when the comparison result is that the absolute value of the difference is greater than or equal to the set reporting threshold.
For a specific workflow of the system and apparatus embodiments shown in fig. 4, fig. 5, and fig. 6, please refer to the description of the corresponding part of the method, which is not repeated here.
It can be seen that, compared with the prior art, the solution of the embodiment of the present invention is not limited to reporting the measurement result of the pilot channel in the CellUpdate process, but after obtaining the measurement result of the pilot channel, it is determined whether the measurement result meets the preset reporting condition, and if so, the measurement result is reported, so that the subsequent NodeB can schedule the channel according to the received measurement result in time, such as adjusting the retransmission times and the transmission power in time, and improving the network service quality.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (17)
1. A method for reporting measurement results is characterized in that the method comprises the following steps:
measuring the current parameters of the pilot channel to obtain the current measurement result;
and comparing the current measurement result with the stored measurement result, and reporting the current measurement result when the comparison result meets the reporting condition.
2. The method of claim 1, wherein comparing the current measurement result with the stored measurement result, and when the comparison result satisfies a reporting condition, reporting the current measurement result comprises:
and the user terminal UE compares whether the absolute value of the difference between the current measurement result and the measurement result which is prestored and reported last time is greater than or equal to a set reporting threshold, and if so, reports the current measurement result.
3. The method of claim 2, wherein before measuring the current parameters of the pilot channel, further comprising:
and the UE receives a message sent by a Radio Network Controller (RNC), wherein the message carries an indication that the difference detection report needs to be carried out and the report threshold information.
4. The method of claim 2, wherein after reporting the current measurement result, further comprising:
and the UE updates the stored measurement result by using the reported current measurement result.
5. The method of claim 3, wherein the receiving, by the UE, the message sent by the RNC comprises: system messages, dedicated measurement control messages over the Uu port, or custom messages.
6. The method of claim 1, wherein comparing the current measurement result with the stored measurement result, and when the comparison result satisfies a reporting condition, reporting the current measurement result comprises:
the UE periodically reports the current measurement result to an RNC;
the RNC compares whether the absolute value of the difference value between the current measurement result and the measurement result which is prestored in advance and reported last time is larger than or equal to a set reporting threshold, if so, the RNC reports the current measurement result to the NodeB;
or,
the UE periodically calculates the difference value between the current measurement result and the measurement result which is prestored and reported last time, and reports the difference value to the RNC;
and the RNC compares whether the absolute value of the difference is greater than or equal to a set reporting threshold, and if so, the RNC reports the current measurement result to the NodeB.
7. The method of claim 6, wherein before measuring the current parameters of the pilot channel, further comprising:
and the RNC transmits a message to the UE, wherein the message carries an indication that the periodical reporting is required and reporting period information.
8. The method according to any of claims 1-7, wherein the pilot channel parameter is received signal code power, RSCP, or chip energy, Ec, noise power density, N0.
9. The method according to any of claims 1 to 7, wherein after reporting the current measurement result, further comprising: and the NodeB carries out scheduling according to the received measurement result.
10. A measurement result reporting device is characterized in that the device comprises: the device comprises a receiving unit, a comparing unit and a reporting unit;
the receiving unit is used for receiving the current measurement result periodically reported by the user equipment UE;
the comparison unit is used for comparing whether the absolute value of the difference value between the current measurement result received by the receiving unit and the previous reported measurement result pre-stored by the receiving unit is greater than or equal to the set reporting threshold or not;
and the reporting unit is used for reporting the current measurement result when the comparison result shows that the absolute value of the difference is greater than or equal to a set reporting threshold.
11. A measurement result reporting device is characterized in that the device comprises: the device comprises a receiving unit, a comparing unit and a reporting unit;
the receiving unit is used for receiving a difference value between a current measurement result periodically reported by the User Equipment (UE) and a measurement result which is prestored and reported last time;
the comparing unit is used for comparing whether the absolute value of the difference value received by the receiving unit is greater than or equal to a set reporting threshold or not;
and the reporting unit is used for reporting the current measurement result when the comparison result shows that the absolute value of the difference is greater than or equal to a set reporting threshold.
12. A measurement result reporting device is characterized in that the device comprises: the device comprises a measuring unit, a comparing unit and a reporting unit;
the measuring unit is used for measuring the current parameters of the pilot channel and obtaining the current measuring result;
the comparison unit is used for comparing the current measurement result in the measurement unit with the measurement result stored by the comparison unit;
and the reporting unit is used for reporting the current measurement result in the measurement unit when the comparison result of the comparison unit meets the stored reporting condition.
13. The apparatus of claim 12, further comprising:
a receiving unit, configured to receive a message sent from a radio network controller RNC, where the message carries an indication that difference detection reporting is required, and reporting threshold information;
the measuring unit measures the current parameters of the pilot channel according to the indication in the message to obtain the current measuring result; the comparison unit compares whether the absolute value of the difference value between the current measurement result and the measurement result which is pre-stored by the comparison unit and reported last time is larger than or equal to a set reporting threshold; and the reporting unit reports the current measurement result when the comparison result shows that the absolute value of the difference is greater than or equal to a set reporting threshold.
14. The device according to claim 12 or 13, wherein the comparing unit is further configured to update the saved measurement result with the reported current measurement result.
15. A system for reporting measurement results is characterized in that the system comprises: reporting a subsystem and a base station NodeB;
the reporting subsystem is used for measuring the current parameters of the pilot channel, obtaining the current measurement result, comparing the current measurement result with the stored measurement result, and reporting the current measurement result to the NodeB when the comparison result meets the reporting condition;
and the NodeB is used for receiving the current measurement result reported by the reporting subsystem.
16. The system of claim 15, wherein the reporting subsystem further comprises: a user terminal UE and a radio network controller RNC;
the UE is used for measuring the current parameters of the pilot channel, obtaining the current measurement result, comparing whether the absolute value of the difference value between the current measurement result and the measurement result which is prestored and reported last time is greater than or equal to the set reporting threshold, and if so, reporting the current measurement result to the RNC;
and the RNC is used for reporting the current measurement result received from the UE to the NodeB.
17. The system of claim 15, wherein the reporting subsystem further comprises: UE and RNC;
the UE is used for measuring the current parameters of a pilot channel, obtaining the current measurement result and periodically reporting the current measurement result to the RNC;
the RNC is used for comparing whether the absolute value of the difference value between the current measurement result received from the UE and the measurement result which is prestored and reported last time is greater than or equal to a set reporting threshold, if so, the RNC reports the current measurement result to the NodeB;
or,
the UE is used for measuring the current parameters of the pilot channel, obtaining the current measurement result, periodically calculating the difference value between the current measurement result and the measurement result which is prestored and reported last time, and reporting the difference value to the RNC;
and the RNC is used for comparing whether the absolute value of the difference value received from the UE is greater than or equal to a set reporting threshold, and if so, the RNC reports the current measurement result to the NodeB.
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