KR20110020394A - Apparatus and method for data transmission of mobile station in wireless communication system - Google Patents

Abstract

PURPOSE: An apparatus and method for data transmission of a mobile station in a wireless communication system are provided to maximize the efficiency of network resources by ignoring a decoding result of a received fading burst. CONSTITUTION: In an apparatus and method for data transmission of a mobile station in a wireless communication system, it is determined whether a fading bursts is included in a plurality of bursts to be transmitted. The location of the fading bursts is transmitted to a base station(300) in a determination process. A burst excluding the fading burst is transmitted to the base station. The bursts are allocated from the base station. The location and size of the allocated burst is checked. An MAC PDU is generated based on data to be transmitted. The existence of the fading burst is determined based on the size of the allocated burst and the generated MAC PDU.

Description

Apparatus and method for data transmission of a terminal in a wireless communication system {APPARATUS AND METHOD FOR DATA TRANSMISSION OF MOBILE STATION IN WIRELESS COMMUNICATION SYSTEM}

The present invention relates to an apparatus and method for transmitting data of a terminal in a wireless communication system, and in particular, minimizes power consumption of a terminal due to transmission of a meaningless padding MAC PDU (Media Access Control Packet Data Unit) in a wireless communication system, and minimizes network resources. The present invention relates to a data transmission apparatus and a method for maximizing efficiency.

In 4th Generation (hereinafter referred to as '4G') communication system, active research to provide users with various Quality of Service (QoS) service using transmission speed of about 100Mbps Is going on. Particularly, in 4G communication systems, studies are being actively conducted to support high-speed services in a form of guaranteeing mobility and QoS in a broadband wireless access (BWA) communication system such as a wireless local area network network system and a wireless urban area network system. Is going on. In addition, the representative communication system is the Institute of Electrical and Electronics Engineers (IEEE) 802.16 system.

As one wireless communication system conforming to the IEEE 802.16 standard, there is a mobile worldwide interoperability for microwave access (WiMAX) system. In the WiMAX system, a terminal manages an uplink (UL) transmission queue for each connection according to a QoS type, and a media access control (MAC) scheduler in the terminal is stored in the queue. Performs a bandwidth request (BR) based on data. Then, when resources are allocated from the base station according to the band request, the terminal transmits data in the form of MAC PDU (Media Access Control Packet Data Unit) through the allocated resources.

However, until the resource allocation according to the band request, that is, the terminal performs the band request, the base station receives the band request, and then the resource is allocated to the terminal via the allocation scheduler of the base station, several frames A delay of a frame may occur. In this case, there is a lack of synchronization between the band request and resource allocation, and thus, a terminal may transmit a padding MAC PDU which is meaningless data through the allocated resource.

Meanwhile, scheduling schemes include unsolicited grant services (UGS), real-time polling services (rtPS), non-real-time polling services (nrtPS), and best effort (BE) schemes defined in the IEEE 802.16 system. There is a newly defined extended-real-time polling service (ertPS) scheme in 802.16e. In all scheduling methods except the UGS, the terminal performs a band request as described above, and the base station allocates as many resources as necessary to the terminal. On the other hand, when the service connection is made once, the UGS periodically allocates a resource of a certain size to the terminal without a special band request. When such an unsolicited grant occurs, the terminal may also transmit a meaningless padding MAC PDU through the allocated resource.

As described above, when there is no data to be transmitted through the allocated resources, the terminal transmits the padding MAC PDU which is meaningless data having no contents. Due to such a meaningless transmission of the padded MAC PDU, unnecessary power consumption may occur in the terminal and waste of network resources in the system. If multiple terminals are connected to the system, the waste of network resources may be more severe. In addition, in a system in which a hybrid automatic repeat request (HARQ) technology is applied, when a cyclic redundancy check (CRC) error occurs for a padding MAC PDU, the base station can actually allocate meaningless resources for retransmission of unnecessary padding MAC PDUs. As a result, the efficiency of network resources may be significantly reduced. In addition, due to such deterioration of network resources, cell throughput and temporary call connection delay may occur.

1 is a diagram illustrating a data transmission and reception method between a base station and a terminal in a wireless communication system to which a general HARQ technology is applied.

Referring to FIG. 1, the terminal 130 is allocated a resource for data transmission from the base station 100 (step 101 and 102), and transmits data in the form of a MAC PDU through the resource allocated in the corresponding frame. (Step 103, step 104). At this time, the base station 100 checks whether there is a CRC error with respect to the data received from the terminal 130. If the CRC error is not detected, the base station 100 provides a resource for transmitting new data to the terminal 130. If a CRC error is detected, allocate resources for retransmission of data that failed to be received. Meanwhile, when the amount of data to be transmitted through the terminal 130 is smaller than the amount of resources allocated from the base station 100 (steps 105 and 106), the terminal 130 transmits the data through the allocated resources in the corresponding frame ( In step 107, the padding MAC PDU, which is meaningless data, may be transmitted through the remaining allocated resources (step 108). In this case, as the CRC error is not detected for the data received from the terminal 130, the base station 100 may continuously allocate resources for transmitting new data to the terminal 130 (step 109). In step 110, the terminal 130 continuously transmits data through the allocated resources in the corresponding frame (step 111), and transmits padding MAC PDU, which is meaningless data, through the remaining allocated resources (step 112). ). In this case, as a CRC error is detected for the padding MAC PDU received from the terminal 130 (step 113), the base station 100 allocates the resource for transmitting new data to the terminal 130 (step 114). In addition, it is possible to allocate a meaningless resource for retransmission of the padding MAC PDU which failed to receive in the previous frame (step 115). This situation may continue until retransmission of the unsuccessful padded MAC PDU is successful (steps 116 to 122), which would significantly reduce the efficiency of network resources.

In order to prevent terminal power consumption and network resource waste due to the transmission of the padded MAC PDU, a scheme in which the terminal does not transmit the padding MAC PDU may be considered. However, if the terminal does not transmit the padding MAC PDU in this way, the packet error of the terminal increases, and accordingly the base station determines that the air condition of the terminal is not good, Modulation and Coding for the terminal Scheme level constraints or inappropriate power control may be performed.

Therefore, there is a need for an improved data transmission scheme to solve the above problems.

An object of the present invention is to provide an apparatus and method for transmitting data of a terminal in a wireless communication system.

Another object of the present invention is to provide a data transmission apparatus and method for minimizing power consumption of a terminal due to transmission of meaningless padding MAC PDU in a wireless communication system and maximizing efficiency of network resources.

Still another object of the present invention is to provide a padding MAC by inserting an extended subheader when generating a MAC PDU constituting a burst when the terminal transmits a plurality of bursts in one frame in a wireless communication system. An apparatus and method are provided for indicating information about a location of a padding burst composed only of PDUs.

It is still another object of the present invention to provide an apparatus and method for omitting transmission of a padding burst consisting of only padding MAC PDUs when a terminal transmits a plurality of bursts in one frame in a wireless communication system.

Still another object of the present invention is a MAC PDU in which an extended subheader (that is, a subheader for indicating information on a location of a padding burst composed only of a padding MAC PDU) is inserted into a burst received from a terminal in a wireless communication system. If so, the base station provides an apparatus and method for ignoring the decoding result of the padding burst received at the location.

Still another object of the present invention is a MAC PDU in which an extended subheader (that is, a subheader for indicating information on a location of a padding burst composed only of a padding MAC PDU) is inserted into a burst received from a terminal in a wireless communication system. In this case, the present invention provides an apparatus and method for not allocating a meaningless resource for retransmission of unnecessary padding bursts even if a CRC error occurs for a padding burst received at a corresponding location.

According to a first aspect of the present invention for achieving the above objects, a data transmission method of a terminal in a wireless communication system, a process of determining whether there is a padding burst of a plurality of bursts to be transmitted, and the presence of the padding burst When determined, characterized in that it comprises the step of transmitting the location information of the padding burst to the base station.

According to a second aspect of the present invention, a data receiving method of a base station in a wireless communication system, the process of obtaining the position information of the padding burst from the terminal, and the process of not referring to the decoding result of the burst received at the corresponding position at the time of scheduling Characterized in that it comprises a.

According to a third aspect of the present invention, a terminal for data transmission in a wireless communication system determines whether a padding burst exists among a plurality of bursts to be transmitted, and when the presence of the padding burst is determined, location information of the padding burst MAC PDU encoder for generating a; and RF transmitter for transmitting the location information of the generated padding burst to the base station.

According to a fourth aspect of the present invention, a base station for data reception in a wireless communication system, the MAC PDU decoder for obtaining the position information of the padding burst from the terminal, decoding the burst received at the corresponding position and outputs a decoding result; And a scheduler that does not refer to the decoding result at the time of scheduling.

According to the present invention, when the terminal transmits a plurality of bursts in one frame in the wireless communication system, when generating a MAC PDU constituting the burst, an extended subheader is inserted to place a padding burst composed of only padding MAC PDUs. By indicating the information about, and after the transmission of the padding burst, there is an advantage that can minimize the power consumption of the terminal due to the transmission of the meaningless padding MAC PDU. In addition, when there is a MAC PDU inserted with the extended subheader in the burst received from the terminal, the base station ignores the decoding result of the padding burst received at the corresponding location, thereby maximizing the efficiency of network resources. have. In particular, when a CRC error occurs for a padded MAC PDU, the base station does not actually allocate meaningless resources for retransmission of unnecessary padding MAC PDUs, and thus, cell performance and call connection delays are reduced by saving network resources. There is an advantage you can get.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings. In describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

Hereinafter, a description will be given of a data transmission technique for minimizing power consumption of a terminal due to transmission of a meaningless padding MAC PDU in a wireless communication system and maximizing efficiency of network resources. In particular, when the terminal transmits a plurality of bursts in one frame, when generating the MAC PDU constituting the burst, by inserting an extended subheader, instructs information about the location of the padding burst consisting of only the padding MAC PDU, and then padding A data transmission technique for omitting burst transmission will be described. In addition, when there is a MAC PDU inserted with the extended subheader in the burst received from the terminal, a data reception technique for the base station to ignore the decoding result of the padding burst received at the corresponding location will be described.

Hereinafter, the present invention will be described using an Orthogonal Frequency Division Multiplexing (OFDM) / Orthogonal Frequency Division Multiple Access (OFDMA) scheme as an example. The same applies to other wireless communication systems. In a typical OFDM / OFDMA-based wireless communication system, the physical layer packet unit is a burst. One burst may include at least one MAC PDU having the above structure, and the receiving end extracts the MAC PDU from the received burst.

2 is a diagram schematically illustrating a structure of a MAC PDU in a wireless communication system according to the present invention.

Referring to FIG. 2, a PDU of a MAC layer transmitted through a wireless section basically has a form in which a MAC header 200 is added before a payload 204, and the payload 204 Cyclic Redundancy Checking (CRC) 206 may be further added after the.

According to an embodiment of the present invention, a padding indication extended subheader (PIES) may be transmitted as a subheader for indicating information on the location of a padding burst including only padding MAC PDUs, which is the payload 204. ) And the extended subheader 202 between the MAC header 200. The type of the extension subheader 202 is set to 7 to indicate the padding indication extension subheader.

Here, the padding indication extension subheader has a format shown in Table 1 below.

Name Size (bit) Description Symbol offset 6 Burst symbol index Subchannel Offset 6 Burst subchannel index Zone Offset 2 Zone index Rsv 2

As shown in Table 1, the padding indication extension subheader includes a symbol offset field indicating a start symbol index of a padding burst in an uplink frame, a subchannel offset field indicating a start subchannel index of a padding burst, and a padding burst. A zone offset field indicating a zone index and a reserved field (Rsv: Reserved) field are included.

3 is a diagram illustrating a method of transmitting and receiving data between a base station and a terminal in a wireless communication system to which the HARQ technology according to the present invention is applied.

Referring to FIG. 3, the terminal 1 330-1 is allocated a resource for data transmission from the base station 300 (steps 301 and 302), and data of a MAC PDU type through the resources allocated in the corresponding frame. (Step 303, step 304). In this case, the base station 300 checks whether there is a CRC error with respect to the data received from the terminal 1 330-1, and if the CRC error is not detected, new data is sent to the terminal 1 330-1. Allocate a resource for transmission of a resource, and if a CRC error is detected, allocate a resource for retransmission of data that fails to be received.

On the other hand, when the amount of data to be transmitted through this is smaller than the amount of resources allocated from the base station 300 (steps 305 and 306), the terminal 1 330-1 has a padding burst including only padding MAC PDUs. Determine. If it is determined that there is a padding burst, the terminal 1 330-1 inserts a padding indication extension subheader into data to be transmitted through the allocated resource in the corresponding frame and transmits the same to the location of the padding burst. Information is indicated (step 307), and transmission of the padding burst through the remaining allocated resources is omitted (step 308).

At this time, the base station 300 ignores the decoding result of the padding burst received at the padding burst position, if the data received from the terminal 1 (330-1), the extension subheader is inserted, there is, Do not allocate resources for retransmission of the padding burst, perform MCS level restriction, perform power control, or the like.

If the CRC error does not occur as a result of decoding the padding burst, the base station 300 may continuously allocate resources for transmitting new data to the terminal 1 330-1 (steps 309 and 310). ). At this time, if the amount of data to be transmitted through this is still less than the amount of resources allocated from the base station 300, the terminal 1 (330-1) continues to extend the padding instruction to the data to be transmitted through the allocated resources in the frame The subheader may be inserted and transmitted to indicate information on the location of the padding burst (step 311), and transmission of the padding burst through the remaining allocated resources may be omitted (step 312).

At this time, the base station 300 also ignores the decoding result of the padding burst received at the padding burst position, as data of the extended subheader is inserted among the data received from the terminal 1 330-1. . If a CRC error occurs as a result of decoding the padding burst (step 313), the base station 300 recognizes that the corresponding burst is a padding burst, and is meaningless to the terminal 1 330-1 for retransmission of the padding burst. Do not allocate resources. Instead, the corresponding resource may be allocated to the terminal 2 330-2. That is, the base station 300 continuously allocates the remaining resources except for the retransmission of the padding burst among the resources previously allocated to the terminal 1 330-1 (step 314), and the terminal 1 330. In step 315, the resource not allocated to the terminal 1 may be allocated to the terminal 2 330-2.

Thereafter, the terminal 1 330-1 and the terminal 2 330-2 transmit data through the allocated resources in the corresponding frame (steps 316 and 317), and the base station 300 receives the received data. Unless a CRC error is detected, resources are continuously allocated to the terminal 1 330-1 and the terminal 2 330-2 (steps 318 and 319).

4 is a flowchart illustrating a data transmission method of a terminal in a wireless communication system.

Referring to FIG. 4, in step 401, the terminal receives a map MAP including burst allocation information of data from the base station, and in step 403, decodes the received map to position itself of the burst assigned to the corresponding frame. And size.

Thereafter, the terminal generates a MAC PDU based on the data to be transmitted in step 405.

In step 407, the terminal determines whether a padding burst is present based on the size of the burst allocated to the terminal and the generated MAC PDU. For example, when a plurality of bursts are allocated from the base station, but the amount of MAC PDUs to be transmitted through is smaller than the total bursts allocated from the base station, the terminal pads some bursts among the plurality of bursts allocated from the base station. It can be configured as a padding burst consisting only of. Therefore, when the amount of MAC PDUs to be transmitted through this is small compared to the size of the burst allocated from the base station, the terminal may determine the presence of the padding burst.

In step 409, the UE determines whether the presence of the padding burst is determined.

In step 409, when the presence of the padding burst is determined, the terminal generates a padding instruction extension subheader including the location information of the padding burst in step 411, and in step 413, a padding MAC for configuring the padding burst. After inserting the generated padding indication extension subheader into the remaining MAC PDUs other than the PDU, the process proceeds to step 415.

On the other hand, in step 409, when determining the non-existence of the padding burst, the terminal proceeds directly to step 415.

In step 415, the terminal configures a burst including at least one MAC PDU, and transmits the remaining bursts other than the padding burst to the base station in step 417.

Thereafter, the terminal terminates the algorithm according to the present invention.

5 is a flowchart illustrating a data reception method of a base station in a wireless communication system.

Referring to FIG. 5, the base station performs scheduling in step 501, configures a map MAP using the scheduling result in step 503, and transmits the configured map to the terminal.

In step 505, the base station receives a burst from the terminal and decodes the received burst. For example, the base station extracts a MAC PDU from the received burst and checks whether a CRC error exists for the extracted MAC PDU. If the CRC error is not detected, the base station may determine that the burst has been successfully received, and if the CRC error is detected, the base station may determine that the burst reception has failed.

In step 507, the base station determines whether a padding indication extension subheader exists in the MAC PDU extracted from the received burst.

In step 507, when there is no padding indication extension subheader in the extracted MAC PDU, the base station performs a normal function. For example, when it is determined that the burst has been successfully received, the base station allocates resources for transmitting a new burst to the terminal, and when it is determined that the burst reception has failed, the base station determines that the burst has failed. Allocate resources for retransmission.

In contrast, when the padding indication extension subheader exists in the extracted MAC PDU in step 507, the base station decodes the padding indication extension subheader in step 509 to determine the location of the padding burst.

In step 511, the base station receives a next burst and decodes the received next burst.

In step 513, the base station determines whether the position of the received next burst is the same as the position of the padding burst.

In step 513, when the position of the received next burst and the padding burst are not the same, the base station returns to step 511 and repeats the following steps.

In contrast, when the received burst is the same as the padding burst in step 513, the base station determines that the next burst is a padding burst in step 515 and ignores the decoding result of the padding burst. That is, it does not allocate resources for retransmission of the padding burst, perform MCS level restriction, perform power control, or the like.

The base station then terminates the algorithm according to the invention.

6 is a block diagram illustrating a configuration of a terminal in a wireless communication system.

As shown, the terminal is an RF receiver 600, OFDM demodulator 602, subcarrier demapper 604, demodulator 606, decoder 608, map (MAP) interpreter 610, MAC PDU encoder ( 612, the encoder 614, the modulator 616, the subcarrier mapper 618, the OFDM modulator 620, and the RF transmitter 622.

Referring to FIG. 6, the RF receiver 600 converts an RF signal received through an antenna into a baseband signal and outputs the baseband signal. The OFDM demodulator 602 calculates a fast fourier transform (FFT) of the baseband signal from the RF receiver 600 and outputs data in a frequency domain. The subcarrier demapper 604 extracts map (MAP) data from data in the frequency domain from the OFDM demodulator 602 and outputs it.

The demodulator 606 demodulates and outputs map data from the subcarrier demapper 604 according to a known modulation scheme. The decoder 608 decodes the map data from the demodulator 606 according to a coding scheme known in advance, and determines whether there is map information of the terminal itself, and provides map information of the terminal to the MAC layer.

The map analyzer 610 of the MAC layer interprets map information from the decoder 608 to determine the location and size of the burst assigned to the terminal itself, and outputs the location and size information of the assigned burst.

The MAC PDU encoder 612 generates a MAC PDU based on data to be transmitted to a base station, constructs a burst including at least one MAC PDU, and outputs the burst to the physical layer. In addition to the normal functionality, in accordance with the present invention, the MAC PDU encoder 612 uses the burst allocation location and size information from the map interpreter 610 of the MAC layer to determine the magnitude of the burst assigned to it and the generated If the presence of the padding burst is determined based on the MAC PDU, and if the presence of the padding burst is determined, a padding indication extension subheader including position information of the padding burst is generated to configure the padding burst to configure the padding burst. Except for inserting into the remaining MAC PDU. Here, the remaining bursts other than the padding bursts are transmitted to the base station through the physical layer.

The encoder 614 of the physical layer encodes and outputs data from the MAC PDU encoder 612 according to a known coding scheme. The modulator 616 modulates and outputs data from the encoder 614 according to a known modulation scheme.

The subcarrier mapper 618 maps data from the modulator 616 to subcarriers and outputs the data. The OFDM modulator 620 performs inverse fast fourier transform (IFFT) operation on the subcarrier mapped data from the subcarrier mapper 618 and outputs data in the time domain. The RF transmitter 622 converts the baseband signal from the OFDM modulator 620 into an RF signal and transmits the RF signal through an antenna.

7 is a block diagram showing the configuration of a base station in a wireless communication system.

As shown, the base station is as shown, the base station is the RF receiver 700, OFDM demodulator 702, subcarrier demapper 704, demodulator 706, decoder 708, MAC PDU decoder 710 And a scheduler 712, a map (MAP) generator 714, an encoder 716, a modulator 718, a subcarrier mapper 720, an OFDM modulator 722, and an RF transmitter 724.

Referring to FIG. 7, the RF receiver 700 converts a radio frequency (RF) signal received through an antenna into a baseband signal and outputs the baseband signal. The OFDM demodulator 702 performs an FFT operation on the baseband signal from the RF receiver 700 and outputs data in a frequency domain. The subcarrier demapper 704 outputs data in the frequency domain from the OFDM demodulator 702 in burst units.

The demodulator 706 demodulates and outputs data from the subcarrier demapper 704 according to a known modulation scheme. The decoder 708 decodes the data from the demodulator 706 according to a coding scheme known in advance and provides it to the MAC layer.

The MAC PDU decoder 710 of the MAC layer extracts a MAC PDU from the burst data from the demodulator 706, performs decoding on the extracted MAC PDU, and provides a decoding result to the scheduler 712. For example, MAC header check and CRC error check are performed. At this time, according to the MAC header check result, the corresponding MAC PDU is processed as signaling or traffic in the high MAC layer. In addition, if the CRC error is not detected according to the CRC error check result, the MAC PDU is determined to have been successfully received, and if the CRC error is detected, the MAC PDU is determined to have failed to be received. In this case, the scheduler 712 may perform scheduling with reference to the decoding result. In addition to the normal function, according to the present invention, the MAC PDU decoder 710 checks whether a padding indication extension subheader exists in the MAC PDU extracted from the burst data, and when the padding indication extension subheader exists, The padding indication extension subheader is decoded to determine the location of the padding burst. The MAC PDU decoder 710 then ignores the decoding result of the padding burst received at the identified position. That is, the MAC PDU decoder 710 does not provide the decoding result of the padding burst to the scheduler 712, thereby causing the scheduler 712 to allocate resources for retransmission of the padding burst, or to restrict the MCS level restriction. Do not perform an operation such as performing power control or power control.

The scheduler 712 performs scheduling for frame communication and outputs a scheduling result. The map generator 714 generates map information by using the scheduling result from the scheduler 712 and outputs the generated map information.

The encoder 716 of the physical layer encodes the map information from the map generator 714 according to a known coding scheme and outputs map data. The modulator 718 modulates and outputs map data from the encoder 716 according to a known modulation scheme.

The subcarrier mapper 720 maps the map data from the modulator 718 to the subcarrier and outputs the map data. The OFDM modulator 722 IFFTs the subcarrier mapped data from the subcarrier mapper 720 and outputs data in the time domain. The RF transmitter 724 converts the baseband signal from the OFDM modulator 722 into an RF signal and transmits it through an antenna.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the following claims, but also by the equivalents of the claims.

1 is a diagram illustrating a data transmission and reception method between a base station and a terminal in a wireless communication system to which a general HARQ technology is applied;

2 is a view schematically showing the structure of a MAC PDU in a wireless communication system according to the present invention;

3 is a diagram illustrating a method for transmitting and receiving data between a base station and a terminal in a wireless communication system to which HARQ technology is applied according to the present invention;

4 is a flowchart illustrating a data transmission method of a terminal in a wireless communication system;

5 is a flowchart illustrating a data receiving method of a base station in a wireless communication system;

6 is a block diagram showing the configuration of a terminal in a wireless communication system, and

7 is a block diagram showing the configuration of a base station in a wireless communication system.

Claims (18)

In the data transmission method of the terminal in a wireless communication system, Determining whether a padding burst exists among a plurality of bursts to transmit; When the presence of the padding burst is determined, transmitting location information of the padding burst to a base station. The method of claim 1, And transmitting the remaining bursts other than the padding bursts to the base station. The method of claim 1, Receiving a plurality of bursts from a base station; Determining the location and size of the allocated plurality of bursts; Generating a MAC PDU based on the data to be transmitted. The method of claim 3, wherein The presence or absence of the padding burst is determined based on the size of the total allocated burst and the generated MAC PDU. The method of claim 1, wherein the transmitting of the location information of the padding burst includes: Generating a padding indication extension subheader including position information of the padding burst; Inserting the generated padding indication extension subheader into the remaining MAC PDUs except for the padding MAC PDU constituting the padding burst; Configuring a burst including at least one MAC PDU; And transmitting the remaining bursts other than the padding bursts to the base station. The method of claim 5, wherein the padding instruction extension subheader, And at least one of a field indicating a start symbol index of the padding burst, a field indicating a start subchannel index of the padding burst, and a field indicating a zone index to which the padding burst belongs. In the method of receiving data of a base station in a wireless communication system, Obtaining location information of the padding burst from the terminal; And not referring to the decoding result of the burst received at the corresponding position at the time of scheduling. The method of claim 7, wherein the obtaining of the position information of the padding burst, Receiving a burst from the terminal; Extracting a MAC PDU from the received burst; And when the padding indication extension subheader exists in the extracted MAC PDU, decoding the padding indication extension subheader to obtain position information of the padding burst. The method of claim 8, wherein the padding instruction extension subheader, And at least one of a field indicating a start symbol index of the padding burst, a field indicating a start subchannel index of the padding burst, and a field indicating a zone index to which the padding burst belongs. In the terminal for data transmission in a wireless communication system, A MAC PDU encoder for determining whether a padding burst exists among a plurality of bursts to be transmitted, and generating position information of the padding burst when the presence of the padding burst is determined; And an RF transmitter for transmitting the location information of the generated padding burst to a base station. 11. The method of claim 10, The RF transmitter is characterized in that for transmitting the burst other than the padding burst to the base station. 11. The method of claim 10, And a map interpreter for allocating the plurality of bursts from a base station and for determining the location and size of the allocated plurality of bursts, The MAC PDU encoder, characterized in that for generating a MAC PDU based on the data to be transmitted. 13. The method of claim 12, Whether the padding burst is present is determined based on the size of the total allocated burst and the generated MAC PDU. The method of claim 10, wherein the MAC PDU encoder, Means for generating a padding indication extension subheader comprising position information of the padding burst; Means for inserting the generated padding indication extension subheader into the remaining MAC PDUs except for the padding MAC PDU constituting the padding burst; Means for constructing a burst comprising at least one MAC PDU. 15. The method of claim 14, wherein the padding indication extension subheader, And at least one of a field indicating a start symbol index of the padding burst, a field indicating a start subchannel index of the padding burst, and a field indicating a zone index to which the padding burst belongs. In the base station for receiving data in a wireless communication system, A MAC PDU decoder obtaining position information of a padding burst from a terminal, decoding a burst received at a corresponding position, and outputting a decoding result; And a scheduler that does not refer to the decoding result at the time of scheduling. The method of claim 16, wherein the MAC PDU decoder, Means for receiving a burst from the terminal; Means for extracting a MAC PDU from the received burst; Means for decoding the padding indication extension subheader to obtain position information of the padding burst when the padding indication extension subheader is present in the extracted MAC PDU. 18. The apparatus of claim 17, wherein the padding indication extension subheader is: And at least one of a field indicating a start symbol index of the padding burst, a field indicating a start subchannel index of the padding burst, and a field indicating a zone index to which the padding burst belongs.

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