KR20070048575A - Apparatus and method for supporting multi-link using of group of multi-hop in multi-hop relay cellular network with using two frequency band - Google Patents

Abstract

An apparatus and method for configuring a subframe to support multiple links by grouping multiple hops in a cellular network of a multi-hop relay method, the method comprising: collecting information of relays constituting a relay link to a destination; In the cellular network, comprising the steps of configuring a hop group according to the information of each other, allocating different time resources according to the configured hop groups, and transmitting the allocated time resource information to the respective repeaters. There is an advantage that the system efficiency can be increased by reducing the overhead due to the expansion of the service area of the base station and the operation switching gap.

Multi-hop, cellular network, frame structure, subframe, odd / even hops, superframe

Description

Apparatus and method for grouping multiple hops in a multi-hop relaying cellular network to support multilinks }

1 is a diagram illustrating a multi-link configuration of a typical multi-hop relay cellular network;

2 is a diagram illustrating a configuration of a cellular network composed of a general multi-hop;

3 illustrates multiple links between adjacent hops in a typical multi-hop relay cellular network;

4 is a diagram showing a frame structure of a general time division duplex system;

5 illustrates a subframe structure of a multi-hop link according to the prior art;

6 illustrates a subframe structure supporting group hop links for grouping multiple hops according to an embodiment of the present invention;

7 is a diagram illustrating a signal flow and an interference path in a cellular network using a multi-hop relay method according to an embodiment of the present invention;

8 is a diagram illustrating a signal flow and an interference path in a cellular network using a multi-hop relay method according to another embodiment of the present invention;

9 is a diagram illustrating resource allocation of subframes configured by grouping multiple hops in a multi-hop relay method according to an embodiment of the present invention;

10 illustrates a multi-hop link structure in a cellular network using a multi-hop relay method according to an embodiment of the present invention;

11 is a diagram illustrating a subframe structure configured by grouping multiple hops in a cellular network using a multi-hop relay method according to another embodiment of the present invention;

12 illustrates a subframe structure configured by grouping multiple hops in a cellular network using a multi-hop relay method according to another embodiment of the present invention;

13 illustrates a base station apparatus for grouping multiple hops according to the present invention;

14 illustrates an operation procedure of a base station for grouping multiple hops in a cellular network using a multi-hop relay method according to an embodiment of the present invention;

FIG. 15 illustrates a subframe structure simultaneously supporting a group hop link grouping multiple hops and a BS-MS link having a direct link according to an embodiment of the present invention; FIG.

16 is a diagram illustrating a superframe structure for providing group hop links grouping multiple hops according to an embodiment of the present invention in one frame unit; and

FIG. 17 illustrates a superframe for a communication link provided by a base station and a relay station in a two-hop broadband wireless access system according to an embodiment of the present invention. FIG.

The present invention relates to a cellular network using a multi-hop relay scheme, and more particularly, to support multiple links by grouping multiple hops in a cellular network using the multi-hop relay scheme. The present invention relates to a structure for configuring a subframe and an apparatus supporting the same.

One of the most important requirements of the 4th generation mobile communication system, which is being actively researched recently, is the configuration of a self-configurable wireless network. The autonomous adaptive wireless network refers to a wireless network capable of providing a mobile communication service by autonomously and distributedly configuring a wireless network without control of a central system. In addition, in the fourth generation mobile communication system, cells having a very small radius are installed to enable high-speed communication and to accommodate a larger amount of communication. In this case, centralized design using the current wireless network design method will not be possible. While such wireless networks must be distributed and controlled, they must be able to actively respond to environmental changes, such as the addition of new base stations. For the reasons described above, the 4G mobile communication system requires the configuration of an autonomous adaptive wireless network.

In order to realistically implement the autonomous adaptive wireless network required in the fourth generation mobile communication system, the technology applied in the ad hoc network should be introduced into the mobile communication system. A typical example of the above is a multi-hop relay cellular network, in which a multi-hop relay scheme, which is a technology applied in an ad hoc network, is introduced to a cellular network composed of fixed base stations. In the cellular network, since a communication is performed through a direct link between a base station and a mobile station, a reliable wireless communication link can be easily configured between the terminal and the base station.

However, since the location of the base station is fixed, it is difficult to provide an efficient service in a wireless environment in which the traffic distribution or the call demand is changed due to low flexibility of the wireless network configuration. In order to overcome this drawback, a relay technique is used to deliver data in the form of a multi-hop form by using a plurality of neighboring terminals or fixed relay stations. In addition, the multi-hop relay scheme can quickly reconfigure the network in response to changes in the surrounding environment, and more efficiently operate the entire wireless network. Therefore, the autonomous adaptive wireless network required in the 4G mobile communication system can be realistically implemented using the multi-hop relay cellular network as a model.

Another incentive for the multi-hop relay technology to be introduced into cellular networks is the burden of initial installation costs by covering a partial shadow area caused by insufficient field strength or by installing a relay station in an initial situation where service requirements are low. Can be reduced. It also has the advantage of widening cell service area and increasing system capacity.

1 shows a configuration of a typical multi-hop relay cellular network.

As shown in FIG. 1, the terminal 110 included in the area 101 of the base station 100 is directly connected to the base station 100 by a link, and is located outside the area 110 of the base station 100. The terminal 120 having a poor channel state from 100 is connected to the relay link through the relay station 130.

That is, the base station is located in the outer area of the base station area 101, or in order to provide a better wireless channel to the terminals (110, 120) in communication, or in the shaded area where the shielding is severe by a building, etc. Link is performed using 130 to communicate with the base station. Accordingly, the base station 100 can provide a high-speed data channel by applying a multi-hop relay scheme in a cell boundary region having a poor channel state, and can expand the cell service region. In addition, in a cellular network using a multi-hop relay scheme, a base station and a terminal (BS-MS) link, a base station and a relay station (BS-RS) link, and a relay station and a terminal (RS-MS) link exist.

In the multi-hop relay method using a repeater as shown in FIG. 1, a relay link may be set using a plurality of repeaters as shown in FIG. 2.

Figure 2 shows the configuration of a cellular network consisting of a typical multi-hop.

As shown in FIG. 2, the terminal 219 connected to the base station 201 by the relay link uses a plurality of repeaters 211, 213, 215, and 217 in which a communication link is not established using one repeater. Establish a communication link with the base station 201.

In this case, the operation between the repeaters 211, 213, 215, and 217 will be described in detail as shown in FIG. 3.

3 illustrates multiple links between adjacent hops in a typical multi-hop relay cellular network. The description below shows multiple links between two hops.

As shown in FIG. 3, a network between two hops includes (M-1) hop repeater 301, M hop repeater 303, M hop terminal 305, and (M + 1) hop terminal 307. And an (M + 1) hop repeater 309.

The (M-1) hop repeater 301 establishes a communication link with the M hop repeater 303 and the M hop terminal 305, and the M hop repeater 303 is connected with the (M + 1) hop terminal 307. A communication link is established with the (M + 1) hop repeater 309.

In this way, the communication link is extended from the base station 201 to the terminal 219 of the last stage in multiple hops.

In order to communicate not only with a base station but also with a multi-hop repeater, the mobile terminal in the cellular network needs to dynamically distribute resources (channels) provided in an air interface to each link of the multi-hop. In addition, the repeaters that make up the cellular network using the multi-hop relay method can receive continuous energy as a fixed type device according to each repeater. However, when the relay station supports mobility, a limited capacity battery is used as an energy source. For example, when a notebook PC (Personal Computer) or PDA (Personal Digital Assistants) is moved, it is difficult to supply stable energy. Therefore, the mechanism (Mechanism) that can save energy or save energy is being studied.

A frame structure for supporting a general cellular network is shown in FIG. 4.

4 shows the frame structure of a typical time division duplex system. In the following description, the horizontal axis represents the time domain and the vertical axis represents the frequency domain.

As illustrated in FIG. 4, one frame 400 is divided into a downlink subframe 411 and an uplink subframe 421. First, the downlink subframe 411 performs a function of transmitting a signal from a base station to a plurality of mobile stations, and includes control information including location information of a preamble signal of the base station and data allocated to a downlink burst. .

Next, the uplink subframe 421 performs a function of transmitting a signal from the plurality of mobile stations to a base station, and includes the base station ranging signal.

In addition, between the downlink subframe 411 and the uplink subframe 421, a TTG (Transmit / Receive Transition Gap) 431 which is a guard region for switching a mode from a base station to a transmission to reception operation. ), An RTG (Receive / Transmit Transition Gap) 441 is provided between the uplink subframe and the downlink subframe by the base station for mode switching from reception to transmission operation.

As described above, in order to support a cellular network using a multi-hop relay scheme in a frame structure of a time division duplex system, a frame structure as shown in FIG. 5 should be used.

5 shows a subframe structure of a multi-hop link according to the prior art. In the following description, the horizontal axis represents the time domain and the vertical axis represents the frequency domain.

As shown in FIG. 5, subframes of each hop link are sequentially allocated with different time slots in one subframe to configure a frame. That is, different time slots are sequentially assigned to the subframe 501 of the m-1 hop link, the subframe 503 of the m hop link, and the subframe 505 of the m + 1 hop link. For example, considering the network between the two hops shown in FIG. 3, the (M-1) hop repeater 301 and the M hop terminal 305 are assigned to the time slot 503 allocated for transmission of the M hop link. There is a signal for the link between and the link between the (M-1) hop repeater 301 and the M hop repeater 303.

As described above, when signaling on each hop is performed through a sequential time slot, an operation switching gap is required between transmissions of each hop since each hop needs to receive a signal from a previous hop and transmit a signal to a next hop. Done. In general, time-division duplex frames have a short frame length, taking into account feedback delays that seriously affect TCP (Transmit Control Protocol) throughput, ARQ / H-ARQ (Automatic Repeat Request), and closed loop control (Closed Loop Control) performance. Has Thus, multiple TTG / RTGs for multiple hops within the short frame length have a large overhead. As described above, when one subframe is divided into a plurality of time slots, it becomes an overhead for granularity of resource allocation of each hop, and a length of one time slot is reduced, thereby supplying a link due to power concentration. The problem arises in that the link budget is reduced.

Accordingly, an object of the present invention is to provide an apparatus and method for reducing transmission overhead in a cellular network using a multi-hop relay scheme.

Another object of the present invention is to provide a frame configuration method and apparatus for supporting the multi-hop grouping in order to reduce transmission overhead in a cellular network using a multi-hop relay scheme.

According to a first aspect of the present invention for achieving the above object, the operation method of a base station for supporting multiple links by grouping multiple hops in a cellular network of the multi-hop relay method, the repeater of the relays constituting the relay link to the destination Collecting information, configuring a hop group according to the collected relay stations, assigning different time resources according to the configured hop groups, and assigning the allocated time resource information to each of the repeaters. It characterized in that it comprises a process of transmitting.

According to a second aspect of the present invention, a subframe configuration method for supporting multiple links by grouping multiple hops in a cellular network of a multi-hop relay method, wherein a first section of the subframe is a subframe of an n-hop group link. And a subframe of n + 1 hop group link when the subframe transitions to the second section.

According to a third aspect of the present invention, a method of configuring a subframe for supporting multiple links by grouping multiple hops in a cellular network of a multi-hop relay method, wherein a first interval of the subframe is a subframe of a direct link with a base station And subframes of n-hop group links when transitioning to the second section of the subframe, and subframes of n + 1-hop group link when the subframe transitions to the third section. It characterized in that it comprises a process of configuring.

According to a fourth aspect of the present invention, a frame configuration method for supporting multiple links by grouping multiple hops in a cellular network of a multi-hop relay method includes: a subframe of an i th frame includes a subframe of a base station and a direct link, a subframe of the n-hop group link, and a subframe of the i + 1 th frame includes a subframe of the direct link with the base station, and a subframe of the n + 1 hop group link. It is done.

According to a fifth aspect of the present invention, a frame configuration method for supporting multiple links by grouping multiple hops in a cellular network of a multi-hop relay method includes an i-th frame, a direct link subframe of an eNB and a UE, and n hops. The subframe of the group link, and the i + 1 th frame, characterized in that it comprises a step of configuring the sub-frame of the link base frame of the base station and the terminal, and the subframe of the n + 1 hop group link.

According to a sixth aspect of the present invention, a frame configuration apparatus for supporting multiple links in a cellular network using multi-hop relay includes: a timing controller for providing a timing signal for transmission of each subframe according to the frame configuration scheme; And a frame generator for constructing a frame using the subframes according to a timing signal, and a resource scheduler for mapping each subframe included in the configured frame to a resource allocated to a burst of each link.

Hereinafter, exemplary embodiments of the present invention will be described in detail 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 method for configuring a subframe for reducing transmission overhead by grouping multiple hops in a cellular network using a multi-hop relay scheme and an apparatus supporting the same will be described. In other words, an operation switching gap is necessary because each hop simultaneously performs an operation of receiving a signal from a previous hop and transmitting a signal to a next hop. However, since the operation switching gap is not required for the link signals before the two hops and the link after the two hops, each of the hops is grouped into even and odd hops (which constitute a set of hops before and after two hops). A subframe configuration method and a device supporting the hop group to transmit a signal will be described.

The following description exemplifies a wireless communication system using a time division duplex and an orthogonal frequency division multiple access scheme, and the same applies to other multiple access schemes.

6 illustrates a subframe structure supporting multiple links by grouping multiple hops in a cellular network using a multi-hop relay method according to an exemplary embodiment of the present invention. In the following description, the horizontal axis represents the time domain and the vertical axis represents the frequency domain.

As shown in FIG. 6, one subframe includes a subframe 601 of an odd hop group link and a subframe 603 of an even hop group link. That is, the communication system within each hop does not need to consider the link signals before the two hops and the link after the two hops, so that the respective hops are grouped into even and odd hops (to form a set of hops before and after two hops). In-group hops configure a subframe of two hop group links to transmit signals within the same interval.

In addition, there is only one transition gap 605 between the subframe 601 of the odd hop group link and the subframe 603 of the even hop group link. Therefore, the overhead for the operation switching gap at a short frame length can be solved. In addition, since one subframe is not divided into time slots for each hop, the time slots for two hop-groups are divided so that the allocated time slots become longer, thereby solving the overhead of data granularity. In addition, since the transmission on each hop has a longer time slot than that of FIG. 5, the occupied band becomes smaller, and thus the link budget can be improved by concentrating power that a repeater having low power can obtain.

As shown in FIG. 6, multiple hops are grouped to form a subframe supporting multiple links. In this case, when the direct link between the base station and the terminal is regarded as a link irrelevant to the multi-hop relay link established by the relay station, as shown in FIG. 15, the multi-hop relay link and the direct link between the base station and the terminal may be simultaneously provided. have. Here, the multi-hop relay link means the odd hop group link and the even hop group link.

FIG. 15 illustrates a subframe structure simultaneously supporting a hop group link grouping multiple hops and a BS-MS link having a direct link according to an embodiment of the present invention.

As shown in FIG. 15, the subframe of the multi-hop relay link set by the relay station includes a subframe 1501 of an odd hop group link and a subframe 1511 of an even hop group link. In this case, each hop group link subframe 1501 and 1511 includes direct link (BS-MS link) information of the base station and the terminal. Here, the subframe of each hop group link and the direct link between the base station and the terminal are distinguished using different radio resources (eg, time and frequency).

As described above, FIGS. 6 and 15 divide one subframe into an even hop group link subframe and an odd hop group link subframe. In addition, transmission in one hop group may be considered in units of frames.

16 illustrates a superframe structure in which group hop links grouping multiple hops are provided in units of frames according to an embodiment of the present invention.

As shown in FIG. 16, the (L-1) -th frame includes an odd (2n-1) -hop group link and a direct link between the base station and the terminal, and the L-th frame includes an even (2n) -hop group link and the It includes a direct link between the base station and the terminal.

That is, the transmission for each hop group may be performed in one frame by extending the super frame structure including a plurality of frames. Here, one frame includes a downlink subframe and an uplink subframe continuously in time. In addition, the direct link between the base station and the terminal is included in each frame when considered independently of a multi-hop relay link, but is included in an odd hop group link frame when considered as a 1-hop link.

When using the super frame as shown in FIG. 16, the base station and the relay station using the super frame provide a communication link as shown in FIG.

17 illustrates a super frame for a communication link provided by a base station and a relay station in a two-hop broadband wireless access system according to an exemplary embodiment of the present invention.

As shown in FIG. 17, the base station provides a direct link with the terminal every frame. That is, the (L-1) th frame 1701 provides a direct link of the base station and the terminal and a link of the base station and the relay station. Thereafter, the L-th frame 1711 provides a direct link between the base station and the terminal.

On the other hand, the relay station provides the base station, the relay link, the relay station and the terminal link in a divided form so that transmission and reception operations are performed by time division multiplexing. For example, in the case of downlink, data is received from the base station through the relay link with the base station in the (L-1) th frame 1701. Thereafter, in the L th frame 1711, data is transmitted to the terminal through a terminal link with the relay station. Here, in consideration of time division in frame units, each communication link (eg, BS-RS link, RS-MS link) includes a downlink and an uplink.

However, when performing subframe or superframe transmission and reception configured as shown in FIGS. 6 and 15, interference occurs as illustrated in FIGS. 7 and 8. In the following description, FIG. 7 assumes multiple links between two hops, and FIG. 8 assumes multiple links between five hops.

7 illustrates signal flow and interference paths in a cellular network using a multi-hop relay method according to an exemplary embodiment of the present invention.

As shown in FIG. 7, when data is transmitted from the (M-1) hop 701 to the M hop 703 in the first section, the signal transmission from the (M + 1) hop 705 is performed by the M. When the M-hop 703 transmits data to the (M + 1) hop 705 from the M-hop 703, the transmission signal of the M-hop 703 is transmitted to the (M + 1) hop 705. Act as interference of the hop 701.

8 illustrates a signal flow and an interference path in a cellular network using a multi-hop relay method according to another embodiment of the present invention.

As shown in FIG. 8, when the odd-hop group 801, 805, 809 transmits a signal, and the even-hop group 803, 807, 811 receives a signal, all the hops signal through the same channel. The transmission causes interference not only to the target hop, but also to other hops in the hop group containing the target hop. For example, when relay station 3 805 transmits a signal to relay station 4 807 which is a target hop, it acts as interference to relay station 2 803 and relay station 6 811.

As described above, when a signal is transmitted and received using a hop group link, interference occurs due to a signal using the same hop group link. As shown in FIG. 9, each hop link included in one hop group link as shown in FIG. The subframes are divided into separate OFDM bursts to allocate different orthogonal resources. In other words, interference can be reduced by allocating orthogonal resources to each other and simultaneously transmitting signals.

Next, as shown in FIG. 10, even if the repeater is located a few hops away from the direct link, it may be considered to establish a communication link with the base station.

10 illustrates a multi-hop link structure in a cellular network using a multi-hop relay method according to an embodiment of the present invention.

As illustrated in FIG. 10, the relay stations 1005 and 1007 or the terminal 1009 positioned several hops away from the direct link may establish a direct link with the base station. Therefore, the direct link and the relay link should be established in the relay station or the terminal of the link that is many hops apart, so the direct link and the relay link should be distinguished.

FIG. 11 illustrates a subframe structure for grouping multiple hops in a cellular network using a multi-hop relay method according to another embodiment of the present invention. Hereinafter, a method of configuring a subframe for a direct link and a relay link in one frame as shown in FIG. 10. In the following description, the horizontal axis represents the time domain and the vertical axis represents the frequency domain.

As shown in FIG. 11, one frame includes a direct link subframe 1101, a subframe 1103 of an odd hop group link of a multi-hop link, and a subframe 1105 of an even hop group link.

In order to distinguish between the direct link and the relay link, the direct link subframe 1101 and the relay link subframes 1103 and 1105 are allocated different time slots. In addition, since the subframe of the relay link does not need an operation switching gap for the link signals before two hops and after two hops, the respective hops are grouped into even and odd hops (the two hops before and after two hops). Configure a subframe of two hop group links.

That is, the signal transmission of the direct link is multiplexed with the signal transmission of the relay link in the form of time division multiplexing and is not simultaneously performed. Here, the positions of the time slots of the subframe 1105 of the even hop group link and the subframe 1103 of the odd hop group link may be interchanged.

In addition, operations are performed between the direct link subframe 1101 and the subframe 1103 of the odd hop group link and between the subframe 1103 of the odd hop group link and the subframe 1105 of the even hop group link. There are transition gaps 1107 and 1109.

In the above-described structure, each time period in the subframe is not only a time slot divided into zones in one frame but also a super-frame in consideration of time slots for one or more frame periods. It can be configured in the form.

12 illustrates a subframe structure for grouping multiple hops in a cellular network using a multi-hop relay method according to another embodiment of the present invention. In the following description, a method of configuring a subframe for a direct link and a relay link over two frames will be described.

As shown in FIG. 12, the i-th frame 1200 includes a subframe 1201 of a direct link and a subframe 1203 of an odd hop group link, and the i + 1th frame 1210 of the direct link It consists of a subframe 1211 and a subframe 1213 of an even hop group link.

In addition, since the direct link between the base station and the terminal can be set independently of the multi-hop link set by the relay station, the subframe 1213 of the odd hop group link and the subframe 1213 of the even hop group link or Both may exist in each of the frames 1200 and 1210.

In the above-described subframe configuration, since one operation switching gap is required in one subframe, the system capacity can be increased by reducing the overhead for the operation switching gap. In addition, since one subframe is divided into two time slots, data granularity is smaller than that of a plurality of time slots, thereby increasing spectral efficiency. In addition, as time slots occupy for resources of the same capacity increase, the frequency band that can be occupied becomes smaller, thereby improving link budget due to power concentration.

13 shows a base station (relay station) device for grouping and transmitting multiple hops according to the present invention.

The frame arrangement shown in FIG. 13 includes a frame configurator 1301, a timing controller 1303, a resource scheduler 1305, a modulator 1307, a digital / analog converter 1309, and And a radio frequency (RF) processor 1311.

The frame configurator 1301 generates a subframe for transmitting the data provided from the upper end to the destination. For example, when the frame configurator 1301 is included in a base station, a subframe to be transmitted to a terminal or a relay station connected by the direct link is configured. If included in the relay, it configures a subframe to be transmitted to the terminal or relay station connected by the relay link.

In this case, the frame configurator 1301 receives a timing signal for transmitting the generated subframes from the timing controller 1303 to one frame from the timing controller 1303 and outputs the timing signal to the next relay or the terminal.

The resource scheduler 1305 allocates the subframes provided from the frame configurator 1301 to the burst of each link allocated to each subframe and outputs the subframes.

The modulator 1307 receives the subframes allocated to the burst of each link from the resource scheduler 1305, modulates the subframes according to a predetermined modulation scheme, and then converts the digital signal into an analog signal in the digital / analog converter 1309. .

The RF processor 1311 converts the digital signal provided by the digital-to-analog converter 1309 into an RF signal by transmitting the frequency upward and transmits the RF signal through an antenna.

As described above, in order to configure a subframe by dividing two hop groups of an even hop group and an odd hop group, a base station searches a path to a destination and transmits resource allocation information for each relay station to each relay station. send.

14 illustrates an operation procedure of a base station for grouping multiple hops in a cellular network using a multi-hop relay method according to an exemplary embodiment of the present invention.

Referring to FIG. 14, in step 1401, the base station collects information of relay stations for establishing a relay link from a cellular network to a destination (terminal).

Thereafter, the base station proceeds to steps 1403 and 1405 to form a hop group by dividing into even and odd hops based on the collected information.

If the hop group is configured, the base station proceeds to step 1407 and allocates time slots in subframes to the two hop groups (even-hop group and odd-hop group) using a scheduler.

In step 1409, the base station allocates a burst-type resource to a repeater configured in the two hop groups (even-hop group and odd-hop group) according to the time slots allocated to the two hop groups. Here, the time slot information allocated to each hop group is common control information, transmitted through the base station, and may be relayed through a repeater.

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 configuring a subframe for a hop group link by grouping multiple hops in a cellular network using a multi-hop relay scheme, the cellular network reduces overhead due to an expansion of a service area and an operation switching gap. There is an advantage that can increase the system efficiency, such as increased system capacity.

Claims (32)

A method of operating a base station for supporting multiple links by grouping multiple hops in a cellular network of a multi-hop relay method, Collecting information of the relay stations constituting the relay link to the destination; Forming a hop group according to the collected relay stations; Allocating different time resources according to the configured hop groups; And transmitting the allocated time resource information to each of the repeaters. The method of claim 1, And the information of the relay stations includes the hop number of the relay stations. The method of claim 1, The hop group, characterized in that comprising the step of configuring divided into an even hop group and an odd hop group. A subframe configuration method for supporting multiple links by grouping multiple hops in a cellular network of a multi-hop relay method, The first interval of the subframe, the process of configuring a subframe of the n-hop group link, And when the subframe transitions to the second section, configuring a subframe of an n + 1 hop group link. The method of claim 4, wherein The first interval and the second interval, characterized in that for assigning different time slots. The method of claim 4, wherein The first section and the second section further comprises a direct link subframe of the base station and the terminal. The method of claim 4, wherein The subframes of each hop link included in the subframes of the respective hop group links are divided into subframes by allocating bursts based on orthogonal resources. The method of claim 7, wherein The orthogonal resource is one of time, frequency, space, code. A subframe configuration method for supporting multiple links by grouping multiple hops in a cellular network of a multi-hop relay method, The first period of the subframe, the process of configuring a subframe of the direct link with the base station; Configuring a subframe of an n-hop group link when transitioning to a second section of the subframe; And when the subframe transitions to the third section, configuring a subframe of an n + 1 hop group link. The method of claim 9, And the subframe of the direct link includes subframes of the base station and the terminal link and subframes of the base station and the relay station link. The method of claim 9, The first section, the second section and the third section, characterized in that the different time slots are assigned to distinguish. The method of claim 9, The second section and the third section, characterized in that further comprises a direct link subframe of the base station and the terminal. The method of claim 9, The subframes of each hop link included in the subframes of the respective hop group links are divided into subframes by allocating bursts based on orthogonal resources. The method of claim 13, The orthogonal resource is one of time, frequency, space, code. A frame configuration method for supporting multiple links by grouping multiple hops in a cellular network of a multi-hop relay method, The subframe of the i-th frame includes a subframe of the direct link with the base station and a subframe of the n-hop group link, The subframe of the i + 1 th frame includes a subframe of the direct link with the base station and a subframe of the n + 1 hop group link. The method of claim 15, The first period of the subframe of the i-th frame, the process of configuring a subframe of the direct link with the base station, The second period of the subframe includes the step of configuring a subframe of the n hop group link. The method of claim 16, The second period of the subframe further comprises a direct link subframe of the base station and the terminal. The method of claim 16, The first interval and the second interval, characterized in that for assigning different time slots. The method of claim 15, The first period of the subframe of the i + 1 th frame comprises: configuring a subframe of the direct link with the base station; The second period of the subframe includes the step of configuring a subframe of the n + 1 hop group link. The method of claim 19, The second period of the subframe further comprises a direct link subframe of the base station and the terminal. The method of claim 19, The first interval and the second interval, characterized in that for assigning different time slots. The method of claim 15, The subframes of each hop link included in the subframes of the respective hop group links are divided into subframes by allocating bursts based on orthogonal resources. The method of claim 22, The orthogonal resource is one of time, frequency, space, code. A frame configuration method for supporting multiple links by grouping multiple hops in a multi-hop relay cellular network, i-th frame, a process of configuring a direct link subframe of the base station and the terminal, and a subframe of the n hop group link, i + 1 th frame, comprising a link subframe of the base station and the terminal, and a subframe of the n + 1 hop group link. The method of claim 24, The subframes of the link included in each of the frames, characterized in that to divide the sub-frame by assigning a burst based on orthogonal resources. The method of claim 24, The orthogonal resource is one of time, frequency, space, code. In the frame configuration apparatus for supporting multiple links in a cellular network using a multi-hop relay, A timing controller providing a timing signal to be transmitted of each subframe according to the frame configuration method; A frame generator constituting a frame using the subframes according to the timing signal; And a resource scheduler for mapping each subframe included in the configured frame to a resource allocated to a burst of each link. The method of claim 27, The subframes of the timing controller include a subframe of the direct link, a subframe of the n hop group link, and a subframe of the n + 1 hop group link. The method of claim 27, The frame generator, Under the control of the timing controller, the first interval allocates the subframe of the n hop link to the burst, And a second interval assigns a subframe of n + 1 hop links to the burst. The method of claim 29, The first interval and the second interval, characterized in that to allocate different time slots. The method of claim 27, The frame generator, Under the control of the timing controller, the first section allocates a subframe of the direct link to the burst, The second interval allocates a subframe of an n hop link to the burst, And a third section allocates a subframe of n + 1 hop link to the burst. The method of claim 31, wherein The first section, the second section and the third section, it characterized in that the different time slots are assigned to distinguish.

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