KR20050119966A - Method for measurement reporting of the data amount on uplink mobile communication - Google Patents

Abstract

According to the present invention, when a user terminal generates data to be transmitted to an enhanced uplink dedicated channel in a mobile communication system supporting an enhanced uplink dedicated channel (hereinafter, referred to as an E-DCH) for a multimedia service, the amount of data is transmitted. Determining whether a measurement report event has occurred by comparing the measurement value with an absolute threshold value for the total amount of data and a relative threshold value for the amount of change of the data; and determining the measurement value when the measurement report event occurs. Including the reporting to the base station, the present invention can reduce the unnecessary reporting in the report on the measurement value from the user terminal to the scheduler as much as possible.

Description

Method of reporting data measurement of terminal for uplink communication in mobile communication system {METHOD FOR MEASUREMENT REPORTING OF THE DATA AMOUNT ON UPLINK MOBILE COMMUNICATION}

The present invention relates to an efficient transmission method of uplink data transmission in a mobile communication system, and to provide a method for measuring data to be transmitted using the improved uplink transmission method.

First, some terms used in the 3rd Generation Partnership Project (hereinafter referred to as 3GPP), definitions of the terms, and roles of the entities referred to by the terms will be described.

A base station controller (hereinafter referred to as RNC) is responsible for controlling a plurality of base stations (called node B) and user equipment (hereinafter referred to as UE), and a wireless access network and a core network (core network). , Hereinafter referred to as CN).

A base station (node B) is responsible for radio transmissions for a plurality of cells, and converts wired transmissions to wireless transmissions and wireless transmissions to wired transmissions.

Cell is the basic service area in the wireless access network and all communication is performed based on the cell as a basic concept.

A user equipment (hereinafter referred to as UE) communicates with a base station within a cell radius.

The radio resource controller (hereinafter referred to as RRC) layer is located in the RNC and the UE. The RRC layer in the RNC performs all the control roles for the call such as control, measurement, call setup, and data transmission control of radio resources.The RRC layer located in the UE also establishes, maintains, and manages calls such as call setup and measurement. It plays all the roles for and is also called Layer 3.

The radio link controller (hereinafter referred to as RLC) layer is located in the RNC and the UE. It is located under the RRC layer and is responsible for the transmission and recovery of actual data through logical channels.

Medium access controller (hereinafter referred to as MAC) layer is RLC layer Located in the lower part, the amount of data suitable for transmission is determined according to the wireless environment, and the determined amount of data is taken from the RLC. It is connected to the physical layer and a transport channel.

The physical layer plays a role of generating and receiving a physical channel and performs a channel encoding process and a mapping of transport channels to physical channels and vice versa. It also includes the role up to actual RF transmission.

The logical channel is a channel between the RLC layer and the MAC layer, and is divided into a common logical channel and a dedicated logical channel according to its characteristics. In addition, the common logical channel and the dedicated logical channel may be referred to as a common control logical channel (common control logical channel, CCCH), common data logical channel (hereinafter referred to as CTCH) according to the nature of the data transmitted to the logical channels. And a dedicated control logic channel (hereinafter referred to as DCCH), a dedicated control data channel (hereinafter referred to as DTCH), and the like. Each logical channel has a priority according to the nature of the data transmitted by each logical channel, and the data of the high-priority logical channels are transmitted first.

The transport channel is a channel between the MAC and the physical layer, and one transport channel can transmit a plurality of logical channels. According to the nature, it is divided into a common transport channel (hereinafter referred to as TrCH) and a dedicated transport channel (hereinafter referred to as DCH).

The physical channel is a channel between the physical layer of the UE and the physical layer between node B, and is divided into a physical channel transmitting a pure physical channel and a transport channel. Uu indicates the interface between the UE and the RNC, IuB indicates the interface between the RNC and node B, and IuR indicates the interface between the RNC and the RNC.

The enhanced uplink transmission technology proposed by 3GPP is also called uplink DCH and is also called E-DCH. The E-DCH indicates a dedicated channel using an enhanced uplink transmission technique or the enhanced uplink transmission technique.

Techniques supported by the E-DCH include scheduling of uplink data transmission and a hybrid automatic repeat request (HARQ) for increasing transmission reliability of a physical channel.

1 is a diagram illustrating a protocol structure of a mobile communication system supporting a conventional E-DCH.

In FIG. 1, the UE 101 transmits E-DCH data under scheduling of node B 102, and node B 102 transmits the received E-DCH data through IuB 151 to SRNC 103. To send. The SRNC 103 refers to the RNC in which the UE 101 is registered among the RNCs. When the RNC managing the node B 102 is another RNC other than the SRNC 103, the other RNC is called a controlled RNC (CRNC). When the RNC is present, the RNC managing the node B 102 is transmitted from the node B 102. E-DCH data is received by SRNC 103 via IuB 151 and IuR 152.

 Referring to the flow of data transmitted from the UE 101 to the SRNC 103 by the E-DCH in FIG. 1, the data transmitted in the RLC layer is transmitted through the DTCH 110 and the DCCH 111 to the MAC-d object 112. Is received). The MAC-d object 112 serves as a MAC layer for a dedicated transport channel. Data that have undergone appropriate processing in the MAC-d object 112 are received by the MAC-e object 113. The MAC-e object 113 receives an E-DCH transmission frame in consideration of the amount of data that can be transmitted to the E-DCH within the assigned data transmission rate by receiving the transmission from the scheduler located in the node B 102. And transmit to physical layer 114. The MAC-e object 113 also performs a HARQ control function. The physical layer 114 performs an appropriate physical layer operation on the received E-DCH transmission frame to correspond the E-DCH transmission frame to the physical channel 114 for E-DCH transmission. To send).

The physical layer 120 of the node B 102 receives the physical channel frame transmitted from the UE 101 and detects an E-DCH transmission frame. The physical layer 120 performs an error detection operation on the E-DCH transmission frame, and if an error occurs, performs the HARQ operation as set in the MAC-e object 121. When no error occurs, the received E-DCH transmission frame is transmitted to the MAC-e object 121. The MAC-e object 121 is an E-DCH by an E-DCH frame protocol (FP) processing unit 123 used for data transmission on IuB to transmit the received E-DCH transmission frame to the SRNC 103. It is processed into a data frame and transmitted to a transport network layer (hereinafter referred to as TNL) 124. The TNL 124 is a layer that is responsible for data transmission between the node B and the RNC. The TNL 124 transmits the transmitted E-DCH data frame to the TNL 130 of the SRNC 103 through the Iub 151. The TNL 130 transmits the received E-DCH data frame to the EDCH FP processor 131, and the EDCH FP processor 131 detects data after removing the frame format of the FP from the received data frame. It sends to the MAC-d object 132. The MAC-d object 132 transmits the received data to the RLC layer of the SRNC 103 through the corresponding DCCH 140 and DTCH 141.

As described in FIG. 1, an important matter in the E-DCH is to efficiently use uplink radio resources by scheduling uplink transmissions of UEs located in one cell. One of the most important factors in the scheduling is the priority according to the amount of data that the UE wants to transmit on the E-DCH and the quality of service (QoS) of the data. With reference to the amount of data the UE has and the QoS of the data, the scheduler of the base station allows the E-DCH transmissions by the respective UEs to be optimized. Therefore, in the E-DCH, a method of informing the scheduler of the amount of data according to the QoS of data that the UE currently has in a valid manner may be a major factor in determining the performance of scheduling.

In the conventional mobile communication system, in order to measure the amount of E-DCH data, the user terminal uses a traffic volume measurement (TVM) method that can measure how much data is in the E-DCH. Doing. For the TVM, 3GPP proposes two methods of periodic measurement and measurement caused by events. In the periodic measurement method, the UE performs measurement on one transport channel according to a period set by the SRNC, and reports the result to the SRNC according to the set period. The measurement method caused by the event is that the UE performs TVM according to the occurrence of a specific event, and reports the result to the SRNC.

FIG. 2 is a diagram illustrating an operation of measuring an amount of uplink data of a user terminal in a conventional mobile communication system. In FIG. 2, when a specific event indicated by reference numerals 4a and 4b occurs, the TVM is performed. . Event 4a reports the result of TVM to SRNC when the total amount of data in the RLC buffer of the plurality of logical channels corresponding to the transport channel deviates from a preset threshold 201, and event 4b indicates the transport channel. If the total amount of data in the RLC buffer of the plurality of logical channels corresponding to the lower than the predetermined threshold value 202 is to report the result of the TVM to the SRNC. The threshold values 201 and 202 applied to the 4a and 4b events may be the same or may have different values.

If the total amount exceeds the threshold 201 and a predetermined triggering timer (Time To Trigger) expires, the UE determines that event 4a has occurred at time 210.

The TVM measures the total amount of data generated for any TrCH owned by the UE, and if it is difficult to process the data generated by the UE by setting the TrCH, change the TrCH type or generate the TrCH compared to a preset TrCH capability. When the amount of data to be made is small, it is used to reset the TrCH having a lower capability by changing the configuration of the preset TrCH. Therefore, in TVM, the total amount of data in one TrCH is considered more important than the amount of data generated in each of the logical channels corresponding to any TrCH. Accordingly, repeating the same report on the same event as in steps 210 and 211 may inform the SRNC determining the TrCH configuration of the UE that it is urgently needed to change the TrCH type or configuration of the UE. This is a useful element.

However, as described with reference to FIG. 1, the report of the amount of data for the E-DCH indicates to the scheduler controlling the E-DCH transmission of the cell in which the UE is located, how much data the UE has which priority. Once the scheduler is informed of the amount of data that the UE has, the scheduler makes appropriate scheduling in consideration of the amount and priority of data reported from the UE.

In the TVM, however, the same event is repeatedly reported as shown in 210 and 211 of FIG. 2.

Therefore, the TVM used in the conventional system is not suitable for the UE to report the amount of data in the E-DCH.

Accordingly, the present invention provides a method for measuring the amount of data of the UE to effectively support the E-DCH scheduling in the mobile communication system to solve the above problems.

Still another object of the present invention is to provide a method for a UE to measure an amount of data for each priority in consideration of the priority of data.

Another object of the present invention is to schedule the amount of data reported from the UE by the scheduler controlling the E-DCH transmission in calculating the total amount of data to be transmitted by the base station by the base station measuring the amount of data received from the UE. It provides a way to efficiently perform.

The preferred embodiment of the present invention for achieving the above objects,

When the user terminal generates data to be transmitted to the enhanced uplink dedicated channel, measuring the amount of data, comparing the measured value with an absolute threshold for the total amount of data, and a relative threshold for the amount of change in the data Determining whether a report event has occurred, and reporting the measurement value to a base station when the measurement report event occurs.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that in the following description, only parts necessary for understanding the operation according to the present invention will be described, and descriptions of other parts will be omitted so as not to distract from the gist of the present invention.

The present invention is a method applicable to all mobile communication systems supporting an efficient method of uplink mobile communication in a wireless mobile communication network. For convenience of description, the present invention will be described using a 3GPP standard which is a standard of a third generation asynchronous mobile communication system.

The scheduler located in the MAC-e object of node B receives the amount of data received by the UEs from all UEs in the cell that wants to transmit data to the E-DCH and adjusts the E-DCH transmissions of the UEs accordingly. do. The amount of data possessed by the UEs is called a buffer status (hereinafter referred to as BS). When the scheduler receives a BS from each of the UEs, the scheduler performs appropriate scheduling for data to be transmitted to the E-DCH in consideration of the priority of the BS of each UE and the data of each UE. The data used by the scheduler may include transmit power that can be used by the UE in addition to the BS of the UE, but the detailed description of the transmit power that can be used by the UE is not closely related to the present invention.

The 3GPP standard uses a method of assigning an appropriate priority to each logical channel in order to determine a transmission rank in a wireless network. Data that can be transmitted on the logical channel is an inter-active (Inter-Active, IA) that requires interaction between a transmitter and a receiver, such as RRC control signal, CN control signal, voice data, streaming data and web browsing. Data, and data such as file download (Back Ground, hereinafter referred to as BG). The priority assigned to the logical channel is eight. In general, the logical channel transmitting the control signal may have the highest priority, and the priority of the logical channel may be lowered in the order of voice data, streaming data, IA, and BG. The priority for setting the priority may be a transmission delay time request value and a transmission tolerance rate required for each data.

As described in FIG. 1, the E-DCH uses a method of maximizing uplink transmission efficiency by introducing a MAC-e object. Maximizing the uplink transmission efficiency may include allocating appropriate uplink resources to each UE by identifying the characteristics of data of different UEs while increasing the overall uplink rate by using the limited radio resources with each other. Can be. Therefore, if the meaning of the BS in the E-DCH is defined as the amount for each priority of the data to be transmitted by the UE, not simply the total amount of data to be transmitted to the E-DCH owned by the UE, the scheduling in the E-DCH is further increased. Efficient

In the present invention, in the E-DCH, the BS is defined as the amount of data for the priority of data to be transmitted by the UE. The priority queues serve to recombine different logical channels by priority. Different priority queues have the same priority. Therefore, the sum of data of different priority queues having the same priority also becomes BS.

The BS can be an indication that there is data to be transmitted to the E-DCH and informs the scheduler of the amount of data the UE has for each priority. Therefore, after a certain amount of BS is reported to the scheduler, the BS does not need to be reported again for a while. Since the UE transmits the BS to the scheduler only when the amount of data to be transmitted to the E-DCH is greater than or equal to a certain threshold value or when a separate event occurs, the scheduler determines the change in the amount of data that the UE has, I can schedule it.

In the present invention, the events proposed for the reporting of the BS are as follows.

Event A: BS> 0 (if data of any priority occurs first)

Event B: BS> Threshold_High (when the total amount of data for any priority exceeds a certain high absolute threshold

Event C: DELTA_BS> DELTA_H (if the amount of newly generated data for a certain priority has exceeded a certain value since the last BS report)

Event D: DELTA_BS <DELTA_L (if the amount of newly generated data for any priority since the last BS report has dropped below a certain value)

Event E: BS <Threshold_Low (when the total amount of data for any priority falls below a certain lower absolute threshold)

Event F: BS = 0 (when the total amount of data for any priority has reached 0, i.e. there is no more data for the UE to send for any priority)

Among the events, event A and event F may be special cases of event B and event E. In addition, DELTA_H used in the event C may be defined in two ways. Firstly, DELTA_H can be defined as the difference between the amount of data reported since the last BS and the second, and secondly, DELTA_H can be defined considering the amount of data transmitted since the last BS and the amount of data reported since the last BS. Can be. The second method is more accurate than the first method because the UE continuously tracks the amount of transmitted data and determines DELTA_H by reflecting a change in the amount of current data.

The two methods used to define the DELTA_H may be equally applied to the method of defining the DELTA_L.

The DELTA_H and DELTA_L are relative thresholds distinguished from the Threshold_High and Threshold_Low which are absolute thresholds.

An advantage of using the relative threshold is that it is possible to reduce the possibility of unnecessary BS reporting than using a simple absolute threshold.

The values of Threshold_High and Threshold_Low defined for the events may be the same or different, and the values of DELTA_H and DELTA_L may be the same or different.

When one absolute threshold is used as one, the BS report is unnecessarily repeated when the amount of data of the UE is steadily increased or when data cannot be transmitted through the E-DCH due to insufficient scheduling. In addition, when a plurality of absolute thresholds are set in order to reduce unnecessary BS reporting, it is difficult to appropriately set the plurality of absolute thresholds.

3 is a diagram illustrating an operation of measuring the amount of data in the E-DCH presented in the present invention, in which two absolute thresholds 301 and 302 and two relative thresholds 303 and 304 are used.

Event 311 is a case in which the UE reports the BS measurement result to the scheduler in the node B's MAC-e object when the BS is greater than Threshold_High (301). Event 312 is DELTA_H (303) than the amount of data of the BS previously reported. When the above-mentioned new data occurs, or after a certain amount or more is transmitted from the data amount of the last reported BS, new data of the DELTA_H 303 or more occurs. Reference numeral 313 denotes an event for reporting a BS when the value of DELTA_L 304 decreases from the data amount of the BS reported last time. An example of the event of reference numeral 313 may be to discard the sender data by RLC discarding of the RLC. The data discard function of the RLC is a function for guaranteeing the QoS of the data, and means that the data whose validity is lost is discarded at the transmitting end without being transmitted.

When the UE discards the data as described above, it may be reported to the RLC of the SRNC by RLC signaling. However, due to signaling transmission delay, the scheduler in the MAC-e object of the Node B cannot quickly learn the BS status of the UE. In reference numeral 314, when the BS is smaller than the Threshold_low 302, an event occurs when the amount of data to be transmitted to the E-DCH is gradually reduced or there is no more data to transmit.

4 is a diagram illustrating a flow of a BS measurement and reporting method algorithm according to an embodiment of the present invention, the terminal performs the BS measurement and reporting for a predetermined specific group. The measurement group is set by one priority, and may be a group of logical channels having the same priority or a group of priority queues having the same priority as described above. Here, an example of an algorithm for a case where an event according to Threshold_High (301), DELTA_H (303), DELTA_L (304), and Threshold_Low (302) occurs in a specific measurement group or measurement groups is shown. In step 401, the UE sets a measurement group in consideration of the priority of logical channels to be transmitted to the E-DCH. In step 402, appropriate absolute thresholds 301 and 302 and relative thresholds 303 and 304 are set according to the characteristics of the data of each measurement group. In step 403, the BS for each measurement group is measured, and in step 404, the BS of the measurement groups determines whether an event exceeding Threshold_H occurs in step 403. If it does not occur, the process proceeds to step 408, and if it occurs, in step 405, DELTA_BS determines whether an event exceeding DELTA_H occurs for the measurement groups in which the event occurred. If an event that exceeds DELTA_H does not occur in step 405, the process proceeds to step 408. If the event does not occur, the process proceeds to step 408. In case of occurrence, it is determined whether the BS exceeds the threshold_low in step 407. If it is determined in step 407 that the event has not occurred, the process returns to step 403. If an event occurs, in step 408, the measurement result for the event is generated and transmitted.

5A or 5B illustrate information transmitted from a base station controller to a user terminal in order to support a measurement method according to an exemplary embodiment of the present invention. The information illustrated in FIG. 5A or 5B is transmitted from the SRNC to the UE when the E-DCH channel is configured or when reconfiguring the configured E-DCHs.

FIG. 5A is information required when the measurement group consists of a set of logical channels, and FIG. 5B is information required when the measurement group consists of a set of priority queues.

5A and 501 indicate an information group name, and the measurement group identifier 502 is an identifier used for identification of a measurement group, and the number thereof may be appropriately determined by the SRNC. For example, the number of priorities of data to be transmitted to the E-DCH by the UE As long as it can be. Reference numeral 503 denotes identifiers of logical channels corresponding to the measurement group using the measurement group identifier 502, and several logical channels may correspond to one measurement group. 504 indicates a threshold for an event where the BS exceeds a certain absolute threshold, 505 indicates a threshold for an event where the BS is below a certain absolute threshold, 506 indicates a threshold for an event where the BS exceeds a certain relative threshold, 507 indicates a threshold for an event where the BS is below a certain relative threshold.

511 represents the name of the information group, 512 measurement group identifier is an identifier used to identify the measurement group, the number can be appropriately determined by the SRNC, for example, the number of priorities of the data to be transmitted by the UE to the E-DCH have. 513 is an identifier of a MAC-d object flow corresponding to a measurement group using a measurement group identifier, and the MAC-d object flow corresponds to several logical channels. The logical channels may have different priorities and correspond to different priority queues according to their respective priorities. Accordingly, unlike the case where the logical channels correspond to the measurement group, when the priority queues correspond to the measurement group, the MAC-d layer flow ID of No. 513 and the priority queue identifier of No. 514 are required. The reason why the MAC-d object flow is used is that, unlike other transport channels, the E-DCH has only one transport channel configured to the UE to add or remove any services to the E-DCH or to remove it after the transmission ends. In this case, it is to smoothly add or remove an arbitrary service than when resetting the entire E-DCH. Threshold_High, Threshold_Low, Threshold_Low, Threshold_Low, Threshold_Low, Threshold_Low, Threshold_Low, Threshold_Low The value, Delta_High, refers to the threshold Delta_Low for the event where BS is lower than a specific relative threshold.

6 is a diagram illustrating an operation flow of a base station controller for a BS measurement method according to an embodiment of the present invention.

In step 601, the SRNC receives a request for establishing a radio access bearer (hereinafter referred to as RAB) for any UE in a cell controlled by the SRNC from the central network. The RAB is a transmission path of data and control signals from the central network to the UE. The CN requests the SRNC to set up RAB after the UE receives a data or voice call request for transmission.

In step 602, the SRNC analyzes the characteristics of data to be transmitted by the UE, and in step 603, performs proper priority allocation and RB setting according to the analysis result. In step 604, the SRNC determines whether to allow E-DCH transmission to the UE. If the SRNC does not allow E-DCH transmission, the SRNC performs a normal call setup operation in step 610.

If the SRNC decides to allow E-DCH transmission to the UE in step 604, each measurement group is set in step 605, and appropriate parameters necessary for each measurement group (shown in FIGS. 5A and 5B) are set. . In step 606, the SRNC transmits the E-DCH related information including the configured parameters to the node B in charge of transmitting the cell where the UE is located, and then, in step 607, the RB configuration information including the configured parameters is transmitted to the UE. Send to.

FIG. 7 is a diagram illustrating an operation flow of a base station scheduler that performs scheduling using a BS measurement method according to an embodiment of the present invention, and an operation of an event in which DELTA_BS becomes DELTA_L is omitted for convenience of description.

In step 701, node B receives E-DCH information related to a UE located in a cell in which node B is responsible for transmission from SRNC. In step 702, the node B configures E-DCH reception related items for the UE in a MAC-e entity according to the information received in step 701. The node B sets an appropriate priority of data of the UE to be transmitted from the E-DCH according to the items set in step 702 and prepares for scheduling. In step 704, the scheduler located in the MAC-e object of the node B determines whether the BS measurement result has been received from the UE. If the scheduler does not receive the BS, it waits until the BS is received. If the scheduler receives the BS, the scheduler stores the amount of data for each priority of the UE based on the BS measurement result in step 705. In step 706, the scheduler allocates an appropriate transmission rate for E-DCH transmission of the UE with reference to the amount of priority-specific data owned by the UE. In step 709, the scheduler determines whether a BS measurement result or an indicator indicating that there is no data to be sent from the UE is received. In step 709, the scheduler returns to step 704. Terminate transmission of logical channels or priority queues of the E-DCH according to the reported indicator for the UE.

8 is a diagram illustrating an operation flow of a user terminal for performing a measuring method according to an exemplary embodiment of the present invention.

In step 801, the UE recognizes that data to be transmitted has occurred, and transmits items related to the data to be transmitted to the central network in step 802. The UE receives an RB setup message from the SRNC in step 803, and determines whether there is information on the E-DCH in step 804. If it is recognized in step 804 that there is no information on the E-DCH, in step 820, data transmission is started after the normal call setup operation is performed. If it is recognized in step 804 that there is information on the E-DCH, in step 805, the E-DCH setting operation is performed based on the information received in step 803.

In step 806, the BS measures the BS and the aforementioned events A to E occur. In step 807, the UE reports the BS to the scheduler located in the MAC-e object of the node B. In step 808, data is transmitted to the E-DCH according to the data scheduling information allocated from the scheduler. In step 809, it is determined whether there is no more data to be transmitted for each priority, that is, whether or not an event F has occurred. In step 809, if there is data to be transmitted for each priority, the UE returns to step 806. do. If it is determined in step 811 that there is no more data to transmit, in step 812, a transmission end indicator or BS = 0 for a priority without data to be transmitted is transmitted to node B.

As described above, the present invention provides a method for validating data possessed by the UEs from UEs using the uplink transmission to scheduling required for the efficiency of the uplink transmission in a mobile communication system using an improved technology for the efficiency of uplink transmission. It is about how to measure and report by method. The method proposed in the present invention provides a suitable measurement concept that can reduce the way for the UE to report the amount of data unnecessarily, and also allows the report to be suitable for the nature of each data so that the scheduler can efficiently schedule data. A method was provided. Therefore, a more efficient uplink transmission method is provided.

1 is a diagram illustrating a protocol structure of a mobile communication system supporting a conventional E-DCH.

2 is a diagram illustrating an operation of measuring an amount of E-DCH data of a user terminal in a conventional mobile communication system.

3 is a diagram illustrating the operation of measuring the amount of data in the E-DCH presented in the present invention.

4 is a flowchart illustrating a BS measurement and reporting algorithm according to an embodiment of the present invention.

5A and 5B illustrate information transmitted from a base station controller to a user terminal to support BS measurement according to an embodiment of the present invention.

6 illustrates the operation of a base station controller for BS measurements in accordance with an embodiment of the present invention.

7 is a diagram illustrating an operation of a base station scheduler for performing scheduling by a BS measurement method according to an embodiment of the present invention.

8 is a diagram illustrating an operation of a user terminal for performing a measuring method according to an exemplary embodiment of the present invention.

Claims (11)

In the data measurement report method of the user terminal in a mobile communication system, Measuring the amount of data when a user terminal generates data to be transmitted to an enhanced uplink dedicated channel; Comparing the measurement value with an absolute threshold value for the total amount of data and a relative threshold value for the amount of change in the data to determine whether a measurement report event has occurred; And reporting the measurement value to a base station when the measurement report event occurs. The method as claimed in claim 1, wherein the measuring process measures the amount of data for each priority in consideration of the priority of data owned by the user terminal. The method as claimed in claim 2, wherein the priority of data of the user terminal is determined according to a measurement group identifier. 4. The method of claim 3, wherein the measurement group identifier is received from an RNC via a radio access bearer (RAB) message. 4. The method of claim 3, wherein the measurement group identifier is an identifier of logical channels determined by a wireless network controller. The method of claim 1, wherein the absolute threshold is divided into an upper absolute threshold and a lower absolute threshold, and the relative threshold is divided into an upper relative threshold and a lower relative threshold. 7. The method of claim 6, wherein the measurement is above the upper absolute threshold, or the measurement is below the lower absolute threshold, And when the amount of change in the measurement becomes greater than or equal to the upper relative threshold or when the amount of change in the measurement becomes less than or equal to the lower relative threshold. 7. The method of claim 6, wherein the upper or lower relative threshold is determined by the difference between the previously reported measurement and the measurement. 7. The method of claim 6, wherein the upper or lower relative threshold is determined by a previously reported measurement and the measurement and a measurement after a previous report. The method as claimed in claim 1, wherein the thresholds are received from a wireless network controller together with enhanced uplink dedicated channel configuration information. 2. The method of claim 1, further comprising reporting the measurement to a base station if the data is first generated or if the total amount of data is zero.