KR20080072116A - Apparatus and method for using diversed versions frames in broadband wireless communication system - Google Patents

Abstract

An apparatus and a method for using frames of various versions in a broadband wireless communication system are provided to include frame version information into an FCH in the broadband wireless communication system, thereby using the frames of the various versions including frames of conventional standards simultaneously. A method for using frames of various versions in a broadband wireless communication system comprises the following steps of: determining a version of a current frame(601); generating an FCH(Frame Control Header) including frame version information(603); checking whether a frame starts(605); transmitting a preamble for the sync acquisition of a terminal(607); mapping the generated FCH to a corresponding resource area and transmitting the FCH(609); mapping a MAP message according to the version of the current frame and transmitting the MAP message(611); and performing communication according to the version of the current frame(613).

Description

Apparatus and method for using various versions of frames in a broadband wireless communication system {APPARATUS AND METHOD FOR USING DIVERSED VERSIONS FRAMES IN BROADBAND WIRELESS COMMUNICATION SYSTEM}

1 is a diagram illustrating a frame structure in a general broadband wireless communication system.

2 is a block diagram of a base station in a broadband wireless communication system according to the present invention;

3 is a block diagram illustrating a detailed block configuration for a frame control header (FCH) transmission path of a base station in a broadband wireless communication system according to the present invention;

4 is a block diagram of a terminal in a broadband wireless communication system according to the present invention;

5 is a block diagram illustrating a detailed block configuration of an FCH analysis path of a terminal in a broadband wireless communication system according to the present invention;

6 is a diagram illustrating a communication procedure of a base station in a broadband wireless communication system according to an embodiment of the present invention;

7 is a diagram illustrating a communication procedure of a terminal in a broadband wireless communication system according to an embodiment of the present invention;

8 is a diagram schematically showing an example of operating a first frame of a broadband wireless communication system according to the present invention;

9 is a view schematically showing a second frame operation example of a broadband wireless communication system according to the present invention; and

10 is a diagram schematically showing a third frame operation example of the broadband wireless communication system according to the present invention;

The present invention relates to a broadband wireless communication system, and more particularly, to an apparatus and method for using a multi-frame structure in a broadband wireless communication system.

In the 4th Generation (hereinafter referred to as '4G') communication system, which is a next generation communication system, active to provide users with services having various Quality of Service (QoS) with a transmission rate of about 100 Mbps Research is ongoing. 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 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 communication system.

The IEEE 802.16 communication system supports orthogonal frequency division multiplexing (OFDM) / orthogonal frequency division multiple access (OFDMA) to support a broadband transmission network on a physical channel of the wireless communication system. Communication system using Orthogonal Frequency Division Multiple Access.

A general frame structure in a broadband wireless communication system such as the IEEE 802.16 communication system is shown in FIG. 1.

In FIG. 1, a downlink frame is a frame transmitted by a base station to terminals, and an uplink frame is a frame in which signals transmitted from a plurality of terminals are collected. The terminal acquires synchronization with the base station through a preamble and confirms the location and coding scheme of the MAP message through a frame control header (FCH). The terminal performs communication by checking the location and control information of the burst area allocated to the terminal through the map message. That is, the first information that the UE checks when receiving a frame is the FCH field. The FCH indicates the location and coding scheme of the map message according to the format of a map message already standardized. The map message also indicates the location of the control information and the burst area in accordance with the format of a frame already standardized. In this case, the IEEE 802.16 system divides the frequency band used by the frame and manages the data in segments. In this case, the segment including the FCH, that is, the frequency band index information is included in the preamble, and the terminal checks the FCH by obtaining the frequency band index information including the FCH through the preamble.

However, studies are still being conducted to improve the performance of broadband wireless communication systems, and a new frame may be proposed in some cases. Through the frame of the new structure, it is possible to provide improved map messages, burst channels, control channels, and the like. However, when the frame of the new structure is used, an error occurs because terminals using the frame of the current standard do not interpret the frame. That is, the frame of the current standard and the frame of the new structure cannot be operated at the same time, which means that there is a lack of compatibility in the communication system.

Therefore, in order to maintain compatibility of the communication system, the frame of the new structure should be in the form of including the current standard as well as the new structure. Moreover, in view of the proposal of a new structure of frames in the future, an alternative to using various versions of frames at the same time should be proposed.

Accordingly, an object of the present invention is to provide an apparatus and method for simultaneously using various versions of a frame in a broadband wireless communication system.

Another object of the present invention is to provide an apparatus and method for informing a terminal of changing frame version information in a broadband wireless communication system.

Another object of the present invention is to provide an apparatus and method for notifying frame version information by using a frame control header (FCH) in a broadband wireless communication system.

According to a first aspect of the present invention for achieving the above object, a base station apparatus in a broadband wireless communication system, the control unit for determining the version of the frame to be used, and if the determined version is one of the versions of the new standard, the first version And a first MAC (Media Access Control) processing unit for generating an FCH including the first version index information, and a first transmission modem constituting a frame according to the first version.

According to a second aspect of the present invention for achieving the above object, in a broadband wireless communication system, a terminal device includes a reception modem for extracting at least one FCH from a received frame, converting it into a bit string, and outputting the bit stream; It characterized in that it comprises a MAC processing unit for checking the frame version through the version index.

According to a third aspect of the present invention for achieving the above object, a communication method of a base station in a broadband wireless communication system, the process of determining the version of the frame to be used, the first version wherein the determined version is one of the versions of the new standard In this case, the method includes generating a FCH including the first version index information, and constructing and transmitting a frame according to the first version.

According to a fourth aspect of the present invention for achieving the above object, a communication method of a terminal in a broadband wireless communication system, the process of extracting at least one FCH from the received frame, and the frame through the version index included in the FCH And checking a version and, if the frame version is a supported version, performing a communication through the frame.

According to a fifth aspect of the present invention for achieving the above object, a communication method of a base station in a broadband wireless communication system, the process of configuring a frame of the existing standard, the process of configuring a frame of the new standard, The process includes multiplexing a frame and a frame of a new standard. However, the control message of the frame of the new standard may not be interpreted by the existing terminal.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of 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 technique for simultaneously using various versions of a frame in a broadband wireless communication system. The present invention is described by taking an orthogonal frequency division multiplexing (hereinafter referred to as "OFDM") wireless communication system as an example, and may be equally applicable to other wireless communication systems.

First, a method of simultaneously using various versions proposed by the present invention will be described.

In order to simultaneously use the various versions of the frame, the proposed method of the present invention is to include version information in the frame. The version information is included in a frame control header (FCH) inserted after a preamble in a frame. First, look at the form of the FCH according to the conventional standard is shown in Table 1 below.

 Syntax  Size (bits)  Notes DL_Frame_Prefix_Fformat () {      Used subchannel bitmap   6 Bit # 0: Subchannel group 0 Bit # 1: Subchannel group 1 Bit # 2: Subchannel group 2 Bit # 3: Subchannel group 3 Bit # 4: Subchannel group 4 Bit # 5: Subchannel group 5    reserved One Shall be set to zero     Repetition_Coding_Indication  2 0b00-No repetition coding on DL-MAP 0b01-Repetion coding of 2 used on DL-MAP 0b10-Repetion coding of 4 used on DL-MAP 0b11-Repetion coding of 6 used on DL-MAP      Coding_Indication   3 0b000: CC encoding used on DL-MAP 0b001: BTC encoding used on DL-MAP 0b010: CTC encoding used on DL-MAP 0b011: ZT CC encoding used on DL-MAP 0b100: LDPC encoding used on DL-MAP 0b101 to 0b111- Reserved    DL-MAP_Length 8    reserved 4 Shall be set to zero }

In the <Table 1>, the 'Used subchannel bitmap' field is subchannel information to be used in the current frame, the 'Repetition_Coding_Indication' field is a repetition coding count of a MAP message, and the 'Coding_Indication' field is a map message. In the coding scheme, the 'DL-MAP_Length' field indicates the length of a map message. And, it includes five bits that are not used, and all five bits should be set to '0'.

Here, according to the present invention, the lower 4 bits of the unused 5 bits are used to indicate version information of the frame. The form of the FCH including the frame version information is shown in Table 2 below.

 Syntax  Size (bits)  Notes DL_Frame_Prefix_Fformat () {     informative fields  20-23 Informative Elements depending on version index (The format of these fields shall be changed depending on version index)     Version Index  v (1 to 4) Version Index of this frame Nth version of frame is expressed by [N mod 2 ^V ] Version Index }

In Table 2, the 'informative Fields' field is a meaning including a 'Used subchannel bitmap' field, a 'Repetition_Coding_Indication' field, a 'Coding_Indication' field, and a 'DL-MAP_Length' field shown in <Table 1>, The 'Version Index' indicates an index of the current frame version.

In order to ensure backward compatibility with the conventional standard, the present invention defines a case where the value of the 'Version Index' field is '0' as a case in which a frame according to the conventional standard is used. That is, when the base station uses a frame according to the conventional standard, the value of the 'Version Index' field is set to '0'. Therefore, the conventional standard rule that the unused bit should be set to '0' is not violated. Accordingly, the terminal using only the frame of the conventional standard can also use the frame of the new structure. If the terminal using only the frame of the conventional standard receives a frame whose value of the 'Version Index' field is not '0', the terminal classifies the current frame into an unavailable frame and does not perform communication during the corresponding frame period. Do not.

Hereinafter, a configuration and an operation procedure of a base station and a terminal for performing communication using a frame including frame version information as described above will be described in detail with reference to the accompanying drawings. Hereinafter, the present invention will be described on the assumption that two versions of a frame are used.

2 is a block diagram of a base station in a broadband wireless communication system according to the present invention.

As shown in FIG. 2, the base station includes a control unit 200, a first MAC (Media Access Control) processor 202-1, a second MAC processor 202-2, and a first transmission modem 204-1. ), A second transmission modem 204-2, a multiplexer 206, and a radio frequency (RF) transmitter 208. Here, the first MAC processing unit 202-1 and the first transmission modem 204-1 are blocks for constructing a frame according to the conventional standard, and the second MAC processing unit 202-2 and the second transmission modem are Assume that 204-2 is a block for configuring a frame according to the new standard.

The controller 200 determines a version of a frame to be used for each frame and controls the overall operation of the MAC layer and the physical layer according to the version. For example, the controller 200 performs resource scheduling. In addition, the controller 200 controls generation and transmission of a control message, frame configuration, and transmission of the MAC layer according to the scheduling result.

The first MAC processor 202-1 generates a MAC control message and a burst signal according to the first version frame. In particular, the first MAC processor 202-1 generates an FCH including version information corresponding to a frame according to a first version. For example, the first MAC processing unit 202-1 sets the 'Version Index' field as the index value of the corresponding version in the FCH of the form as shown in Table 2. If the first version is a frame version according to the conventional standard, by setting the index value of the first version to '0', a terminal that does not support various versions of the frame may configure an FCH.

The second MAC processing unit 202-2 generates a MAC control message and a burst signal according to the second version. In particular, according to the present invention, the FCH generation unit 212 in the first MAC processing unit 202-1 generates an FCH including frame version information. For example, the FCH generation unit 212 sets the index value of the second version in the 'Version Index' field in the FCH of the type as shown in Table 2 below. In addition, the second MAC processing unit 202-2 generates a map message indicating resource allocation information according to the scheduling result of the control unit 200.

The first transmission modem 204-1 configures a frame including a data bit string and a control message according to the first version frame, and converts the frame into a baseband signal. That is, the first transmission modem 204-1 generates baseband OFDM symbols through decoding, modulation, and inverse fast fourier transform (IFFT) operations. In addition, the first transmission modem 204-1 generates a preamble for frame synchronization, and inserts and outputs the preamble as the first symbol of every frame.

The second transmission modem 204-2 forms a frame including a data bit string and a control message according to the second version, and converts the frame into a baseband signal. The detailed configuration of the second transmission modem 204-2 will be described below with reference to FIG.

The multiplexer 206 multiplexes the signals from the first transmission modem 204-1 and the second transmission modem 204-2 in units of frames according to the multiplexing scheme. Here, the multiplexing method may be a time division method or a frequency division method. In the case of the time division scheme, the multiplexer 206 performs the same function as a time switch to output signals from the first transmission modem 204-1 in a predetermined frame section and the first in a predetermined frame section. 2 outputs signals from transmit modem 204-2. In addition, in the frequency division scheme, the multiplexer 206 separates signals from the first transmission modem 204-1 and the second transmission modem 204-2 into different intermediate frequency (IF) bands. Convert the signal to and synthesize it. However, signals from the first transmission modem 204-1 should be converted into an intermediate frequency band corresponding to the band used by the frame of the conventional standard.

The RF transmitter 208 converts the signals provided from the multiplexer 206 into RF band signals and transmits them through an antenna.

In the configuration described with reference to FIG. 2, the first MAC processing unit 202-1 and the second MAC processing unit 202-2 perform MAC layer operations according to respective versions. However, if actually configured, the first MAC processing unit 202-1 and the second MAC processing unit 202-2 may be configured as one MAC processing unit. In FIG. 2, this is shown separately to emphasize that two versions of the frame are configured. In addition, the first transmission modem 204-1 and the second transmission modem 204-2 may also be configured as one transmission modem in actual configuration.

3 shows a detailed block configuration of the FCH transmission path of the base station in the broadband wireless communication system according to the present invention.

Referring to FIG. 3, the base station includes the FCH generator 212, the encoder 302, the modulator 303, the resource mapper 306, the OFDM modulator 308, and the RF transmitter 208. do.

The FCH generator 212 generates an FCH including frame version information. For example, the FCH generation unit 212 sets the index value of the version in the 'Version Index' field in the FCH of the type as shown in Table 2. The encoder 302 encodes the bit string of the FCH generated by the FCH generator 212 according to the corresponding scheme. The modulator 304 receives the encoded FCH from the encoder 302 and modulates it according to the corresponding scheme to convert it into a complex symbol.

The resource mapper 306 maps the complex symbol of the FCH provided from the modulator 304 to the corresponding resource region. The OFDM modulator 308 converts the frequency domain signal provided from the resource mapper 306 into a time domain OFDM symbol through an inverse fast fourier transform (IFFT) operation. The RF transmitter 208 converts and amplifies signals provided from the multiplexer 206 into RF band signals and transmits the signals through an antenna.

4 is a block diagram of a terminal in a broadband wireless communication system according to the present invention.

As shown in FIG. 4, the terminal includes an RF processor 400, a demultiplexer 402, a first receive modem 404-1, a second receive modem 404-2, and a first MAC processor 406. -1), a second MAC processing unit 406-2 and a control unit 408.

The RF processor 400 converts an RF band signal received through an antenna into a baseband signal. In this case, the conversion to the baseband signal is a case of time division multiplexing of different versions of the frame, and the conversion to the intermediate frequency band signal is a case of frequency division multiplexing of different versions of the frame.

The demultiplexer 402 classifies the received signals into frame units according to the corresponding demultiplexing scheme and outputs the received signals to the first receiving modem 404-1 or the second receiving modem 404-2. For example, the demultiplexing scheme may be a time division scheme or a frequency division scheme. In the case of the time division scheme, the demultiplexer 402 performs the same function as a time switch, and outputs signals to the first receiving modem 404-1 in a predetermined frame section and the second in a predetermined frame section. Output signals to transmit modem 404-2. In addition, in the frequency division scheme, the demultiplexer 402 band-filters the signals from the RF receiver 400 so that the signals of the first band are transmitted to the first transmission modem 404-1 and the signals of the second band. Output to the second transmit modem 404-2.

The first receiving modem 404-1 interprets a frame according to the first version and converts the frame into a bit string. In other words, the first receiving modem 404-1 obtains frame synchronization through the preamble provided from the demultiplexer 402, and performs fast Fourier transform (FFT) operations on signals according to the first version. The received signal is extracted and converted into a bit string through demodulation and decoding.

The second receiving modem 404-2 interprets the second version of the frame and converts the burst and control signals into bit strings. The detailed configuration of the second reception modem 404-2 will be described below with reference to FIG.

The first MAC processor 406-1 processes the MAC control message and the burst according to the frame of the first version. For example, the first MAC processor 406-1 checks the location and coding scheme of the map message through the FCH and checks the allocated resource region through the map message according to the first version.

The second MAC processing unit 406-2 processes the MAC control message and the burst according to the second version. In particular, according to the present invention, the FCH analyzer 416 in the second MAC processor 406-2 checks the version of the frame through the FCH. For example, the FCH analyzer 416 checks the frame version through the value of the 'Version Index' field in the FCH of the type as shown in Table 2. That is, the second MAC processor 406-2 processes the MAC control message and the burst according to the version confirmed by the FCH analyzer 416.

The controller 408 controls the overall operation of the MAC layer and the physical layer according to the version of the received frame. In particular, according to the present invention, the controller 408 controls the output of the demultiplexer 402 according to the frame version confirmed by the FCH analyzer 416.

In the case of the frequency division scheme, the configuration of checking the frame version through the FCH will be described in detail. The first reception modem 404-1 and the second reception modem 406 extract the FCH in each frequency band. Each extracted FCH is output to the second MAC processing unit 406-1. That is, the version of the frame processed by each receiving modem is confirmed by the second MAC processing unit 406-1.

FIG. 5 shows a detailed block configuration of an FCH analysis path of a terminal in a broadband wireless communication system according to the present invention.

As shown in FIG. 5, the terminal includes an RF receiver 400, an OFDM demodulator 502, an FCH extractor 504, a demodulator 506, a decoder 508, and an FCH analyzer 416. It is composed.

The RF processor 400 converts an RF band signal received through an antenna into a baseband signal. The OFDM demodulator 502 converts a time domain OFDM symbol provided from the RF processor 400 into frequency domain signals through a fast fourier transform (FFT) operation. The FCH extractor 504 extracts an FCH signal among frequency domain signals provided from the OFDM demodulator 502.

The demodulator 506 demodulates the FCH signal provided from the FCH extractor 504 according to a corresponding scheme and converts it into a bit string. The decoder 508 decodes the bit string provided from the demodulator 506 according to the corresponding scheme. The FCH analyzer 416 checks the version of the frame through the FCH provided from the decoder 508. For example, the FCH analyzer 416 checks the frame version through the value of the 'Version Index' field in the FCH of the type as shown in Table 2.

6 illustrates a communication procedure of a base station in a broadband wireless communication system according to an embodiment of the present invention.

Referring to FIG. 6, the base station determines the version of the current frame in step 601. That is, the base station selects one of the plurality of supportable frame versions. If different versions of frames are classified and used for each frequency band, step 601 may be omitted. That is, the base station uses a version of the frame for each frequency band.

After determining the frame version, the base station proceeds to step 603 to generate an FCH including frame version information. For example, the base station records the frame version index in the 'Version Index' field in the FCH of the type as shown in Table 2. In this case, when different versions of frames are classified and used for each frequency band, the base station generates FCHs corresponding to the number of frames used for each frequency band.

Thereafter, the base station proceeds to step 605 and checks whether the start time of the frame.

If the start time of the frame, the base station proceeds to step 607 and transmits a preamble for synchronization acquisition of the terminal.

Subsequently, the base station proceeds to step 609 and maps the FCH generated in step 603 to the corresponding resource region of the frame for transmission. In this case, when different versions of the frame are classified and used for each frequency band, the base station maps and transmits the FCH according to the version corresponding to each frequency band.

After transmitting the FCH, the base station proceeds to step 611 to map and transmit a map message according to the version of the current frame to the corresponding resource region.

In step 613, the base station performs communication according to the version of the current frame. That is, the base station configures and transmits a downlink frame according to the frame structure of the corresponding version, and analyzes the received uplink frame.

7 illustrates a communication procedure of a terminal in a broadband wireless communication system according to an embodiment of the present invention.

Referring to FIG. 7, the terminal acquires frame synchronization using the preamble received in step 701.

After acquiring the frame synchronization, the terminal proceeds to step 703 and checks the version of the current frame through the received FCH. For example, the terminal receives the FCH having the structure as shown in Table 2 and checks the version of the current frame through the value of the 'Version Index' field. In this case, when different versions of frames are classified and used for each frequency band, the terminal receives each FCH in each frequency band and checks the version of the frame used in each frequency band.

After checking the version of the current frame, the terminal proceeds to step 705 and determines whether the checked version is a supported version.

If the version of the current frame cannot be supported, the terminal proceeds to step 711 and checks whether the next frame is a reception time. That is, the terminal does not communicate in the current frame and waits for the next frame.

On the other hand, if the version of the current frame can support, the terminal proceeds to step 707 to extract and decode the map message according to the frame version. Here, the information for extracting the map message is confirmed through the FCH.

After checking the map message, the terminal proceeds to step 709 to perform communication using the allocated resources. In other words, the terminal extracts a received signal from the allocated downlink resource region, maps the transmitted signal to the allocated uplink resource region, and transmits the signal.

Thereafter, the terminal proceeds to step 711 and checks whether it is a next frame reception time, and returns to step 701 if it is a next frame reception time.

8 schematically illustrates a first frame operation example of the broadband wireless communication system according to the present invention.

8 illustrates a case in which different versions of frames are operated by time division multiplexing. In this case, it is assumed that the terminal 1 supporting only the frame existing standard and the terminal 2 supporting both the frame existing standard and '1' perform communication.

As shown in FIG. 8, the terminal 1 performs communication using only frames that are existing standards. That is, when the frame of the existing standard and the frame of the new standard are used alternately, the terminal 1 communicates using half of the entire frame. On the other hand, since the terminal 2 can support both the existing standard frame and the new standard frame, the terminal 2 performs communication using both versions of the frame.

9 schematically illustrates a second frame operation example of the broadband wireless communication system according to the present invention.

9 shows a case in which different versions of frames are operated by frequency division multiplexing. In this case, it is assumed that the terminal 1 supporting only the frame existing standard and the terminal 2 supporting both the frame existing standard and '1' perform communication.

As shown in FIG. 9, the terminal 1 performs communication using only a band for a frame that is an existing standard. On the other hand, since the terminal 2 supports both the existing standard and the new standard, the terminal 2 communicates using all the bands.

In this case, the system may use a frame that is a new standard in the band for the frame that is the existing standard. In this case, the terminal 1 determines that a new standard frame is received in the corresponding band through the FCH in the frame and does not perform communication in the frame. Meanwhile, in the same situation, the terminal 2 confirms that a frame having a new standard is received in the corresponding band through the FCH in the frame, interprets the frame according to the new standard, and performs communication.

Referring to the reason why the terminal 1 can use only the frame of the existing standard, the terminal 1 checks the frequency band index in which the frame of the existing standard is located through a preamble received for frame synchronization, and determines the FCH in the corresponding frequency band. Check it. That is, since the terminal 1 does not interpret a band that does not correspond to the frequency band index identified through the preamble, only the frame of the existing standard is used.

10 schematically illustrates a third frame operation example of the broadband wireless communication system according to the present invention.

FIG. 10 illustrates a case in which different versions of frames are operated by time division multiplexing as shown in FIG. However, FIG. 10 illustrates a case in which the downlink frame and the uplink frame are not continuous, and the uplink frame appears one frame later. In this case, it is assumed that the terminal 1 supporting only the frame existing standard and the terminal 2 supporting both the frame existing standard and '1' perform communication.

As shown in FIG. 10, the terminal 1 performs communication using only frames that are existing standards. That is, when the frame of the existing standard and the frame of the new standard are used alternately, the terminal 1 communicates using half of the entire frame. On the other hand, since the terminal 2 can support both the existing standard frame and the new standard frame, the terminal 2 performs communication using both versions of the frame. At this time, since the map in the downlink frame received by each terminal represents the uplink resource allocation of the next frame instead of the current frame, each terminal performs uplink communication in the next frame.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible 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.

As described above, by including frame version information in a frame control header (FCH) in a broadband wireless communication system, various versions of a frame including a frame of a conventional standard can be used simultaneously.

Claims (28)

A base station apparatus in a broadband wireless communication system, A controller for determining a version of a frame to be used; A first media access control (MAC) processor for generating a frame control header (FCH) including the first version index information when the determined version is a first version that is one of versions of a new standard; And a first transmitting modem constituting a frame according to the first version. The method of claim 1, The first MAC processing unit, And displaying the first version index information by using a reserved field which is not used in an existing standard among the fields in the FCH. The method of claim 1, A second MAC processor for generating an FCH according to the existing standard when the determined version is a version of an existing standard; And a second transmitting modem constituting a frame according to the existing standard. The method of claim 3, wherein And a multiplexer for temporally classifying and multiplexing a frame according to the new standard and a frame according to the existing standard. The method of claim 3, wherein And a multiplexer for multiplexing the frames according to the new standard and the frames according to the existing standard into frequency bands. The method of claim 1, The first transmission modem, An encoder for encoding the FCH according to a corresponding scheme; A modulator for converting a bit string from the encoder into a complex symbol; A mapper for mapping a complex symbol from the modulator to a corresponding resource region; And an OFDM modulator for converting signals mapped to the resource domain into time-domain orthogonal frequency division multiplexing (OFDM) symbols through an inverse fast fourier transform (IFFT) operation. A terminal device in a broadband wireless communication system, A receiving modem which extracts at least one frame control header (FCH) from the received frame, converts it into a bit stream, and outputs And a media access control (MAC) processor for identifying a frame version through a version index included in the FCH. The method of claim 7, wherein The MAC processing unit, characterized in that for checking the version index through the Reserved (Reserved) field of the FCH. The method of claim 7, wherein If the frame version is a version that cannot be supported, further comprising a control unit for controlling not to perform communication in the frame. The method of claim 7, wherein And a demultiplexer for classifying the received frames according to the identified frame version into time periods. The method of claim 7, wherein And a demultiplexer for classifying the received frames according to the identified frame version into frequency bands. The method of claim 7, wherein And the reception modem extracts the FCH after acquiring frame synchronization using a preamble. The method of claim 7, wherein The receiving modem, An OFDM decoder that transforms a time-domain Orthogonal Frequency Division Multiplexing (OFDM) symbol into frequency-domain signals through a Fast Fourier Transform (FFT) operation, An extractor for extracting the FCH from the frequency domain signals; A demodulator for converting a signal from the extractor into a bit string; And a decoder for channel decoding the bit stream from the demodulator. In a communication method of a base station in a broadband wireless communication system, Determining a version of a frame to be used; Generating a frame control header (FCH) including the first version index information when the determined version is a first version which is one of versions of a new standard; And constructing and transmitting the frame according to the first version. The method of claim 14, And the first version index information is recorded in a reserved field not used in an existing standard among the fields in the FCH. The method of claim 14, When the determined version is a version of an existing standard, generating a FCH according to the existing standard; The method further comprises the step of configuring a frame according to the existing standard. The method of claim 16, The frame according to the new standard and the frame according to the existing standard, characterized in that divided by time and multiplexed. The method of claim 16, The frame according to the new standard and the frame according to the existing standard are classified into frequency bands and multiplexed. In a communication method of a terminal in a broadband wireless communication system, Extracting at least one frame control header (FCH) from a received frame; Checking a frame version through a version index included in the FCH; If the frame version is a supported version, performing a communication through the frame. The method of claim 19, The version index, characterized in that confirmed through the Reserved (Reserved) field of the FCH. The method of claim 19, If the frame version is a version that is not supported, further comprising the step of waiting for the next frame without performing a communication in the frame. The method of claim 19, And classifying the received frames according to the identified frame version into time periods. The method of claim 19, And classifying the received frames according to the identified frame version into frequency bands. The method of claim 19, And obtaining frame synchronization using a preamble. In a communication method of a base station in a broadband wireless communication system, The process of configuring the frame of the existing standard, The process of constructing a frame of the new standard, Including a process of multiplexing the frame of the existing standard and the frame of the new standard, The control message of the frame of the new standard is characterized in that the existing terminal can not interpret. The method of claim 25, The control message, characterized in that it comprises the frame version (Version) information. The method of claim 25, The control message, characterized in that the frame control header (FCH). The method of claim 25, The multiplexing method is time division multiplexing or frequency division multiplexing.

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