KR20090014792A - A method of allocation of radio resource in the wireless communication system and the device thereof - Google Patents

Abstract

A method of allocating a radio resource in a wireless communication system and a device thereof are provided to manage limited radio channel resources effectively between a base station and a terminal and reduce a load for allocating a radio resource. A terminal performs a registration process in a base station. The terminal has the same group index configuration information as the base station(S401). When the terminal needs generation of a service flow which enables group resource allocation like a VoIP service or video streaming(S402), the terminal and the base station perform a service flow generation process by using an MAC management message and the base station allocates a group index to the terminal(S403). The base station allocates resources for data burst transmission with regard to a corresponding group according to a resource allocating cycle of a group and informs the terminal of resource allocation information by using the group index(S404). The terminal receives and encodes a group burst indicated by the group index and processes a data packet which is transmitted to oneself(S405).

Description

A method and allocation of radio resource in the wireless communication system and the device

The present invention relates to a method for allocating radio resources to a terminal in a wireless communication system. More particularly, the present invention relates to a method for allocating, maintaining, and updating resources by grouping a plurality of terminals.

In a next-generation mobile communication system such as 3GPP Long Term Evolution (LTE) and 3GPP2 Ultra Mobile Broadband (UMB), a base station may support a group resource allocation scheme by allocating radio resources to a terminal. The group resource allocation method is to allocate resources between terminals that transmit and receive service data at regular intervals and to be allocated by the base station. Typical application services include VoIP (Voice over Intenet Protocol) and video streaming. In the group resource allocation scheme, in order to efficiently manage a group of VoIP-enabled terminals sharing time and frequency, terminals having similar path loss from the base station are set as a group, and a group of terminals allocates resources by one control channel. Get it.

1 illustrates an example in which a base station allocates resources to a mobile terminal in a group resource allocation scheme. In the conventional group resource allocation scheme, a base station configures a group of terminals, based on a resource allocation period according to an application service characteristic of the terminal. In addition, in the prior art, the base station allocates a physical burst to each terminal when allocating resources to the terminals, and informs the terminals of each physical burst allocation area through a resource allocation information message.

Alternatively, the same modulation and channel coding schemes for encoding physical bursts may be allocated to terminals with the same terminal, thereby configuring a physical burst to allocate resources. In this case, MAC (Medium Access Control) Protocol Data Units (PDUs) of each terminal may be combined to form one physical burst. At this time, the base station transmits a resource allocation information message to inform the terminals of physical burst allocation information (ie, resource allocation region, modulation and coding rate, terminal identifier, and connection identifier indicating each service). In the form of a broadcast, the identifiers or connection identifiers of the terminals related to the burst are included in the message so that the terminals receive and process the burst, or the connection identifier is omitted from the message so that all terminals receive the burst. Decoding may be used to process its own Medium Access Control (MAC) Protocol Data Unit (PDU).

FIG. 2 illustrates a frame structure in which a base station allocates a physical burst to a terminal and indicates a resource allocation information (MAP) message indicating the same in a conventional broadband wireless access system based on the IEEE 802.16 system. An example is shown.

Table 1 shows an example of the MAP information element indicating the downlink burst allocation information of the resource allocation information message (MAP) for informing the base station in assigning the data burst to the terminal.

Syntax Size Notes DL-MAP_IE () { DIUC 4 bits if (DIUC == 15) { Extended DIUC dependent IE variable See clauses following 8.4.5.3.1 } else { if (INC_CID == 1) { The DL-MAP starts with INC_CID = 0. INC_CID is toggled between 0 and 1 by the CID-SWITCH_IE () (8.4.5.3.7) N_ CID 8 bits Number of CIDs assigned for this IE for (n = 0; n <N_CID; n ++) { CID 16 bits } } OFDMA Symbol offset 8 bits Subchannel offset 6 bits Boosting 3 bits 000: normal (not boosted); 001: +6 dB; 010: -6 dB; 011: +9 dB; 100: +3 dB; 101: -3 dB; 110: -9 dB; 111: -12 dB; No . OFDMA Symbols 7 bits No . Subchannels 6 bits Repetition Coding Indication 2 bits 0b00-No repetition coding of 0b01-Repetition coding of 2 used 0b10-Repetition coding of 4 used 0b11-Repetition coding of 6 used } }

In the prior art, the base station may perform group resource allocation by allocating a group having a period suitable for an application service of the terminal to the terminal and periodically assigning radio resources to the group. In addition, the base station may configure MAC PDUs for a plurality of mobile terminals having the same Modulation and Coding Scheme (MCS) level according to the channel state as one physical burst. In the prior art, when a group resource is allocated, a plurality of physical bursts having different modulation schemes and code rates may be allocated according to MCS levels of respective mobile terminals included in the group. For this purpose, one group of burst allocation information shown in Table 1 may be allocated. For example, a plurality of resource allocation information messages may be included in this case. In this case, an increase in overhead of the resource allocation information message may occur.

SUMMARY OF THE INVENTION The present invention has been made to solve the problems of the prior art as described above, and an object of the present invention is to provide a method for increasing data transmission efficiency of a base station in a wireless communication system.

Another object of the present invention is to provide a data communication method supporting a group channel resource allocation scheme in a wireless communication system.

Another object of the present invention is to provide a data communication apparatus supporting a group channel resource allocation scheme in a wireless communication system and a terminal.

In order to solve the above technical problem, the present invention discloses a data communication method supporting a group channel resource allocation scheme in a wireless communication system.

An aspect of the present invention provides a data communication method in a wireless communication system that supports a group channel resource allocation scheme, and transmits data transmission control information and group index information including group index configuration information to specific terminals, and transmits the data to the specific terminals. Group data is transmitted to terminals belonging to the specific group by using control information.

According to another aspect of the present invention, a data communication method in a terminal supporting a group channel resource allocation method includes receiving data reception control information and group index information including group index configuration information from a base station and using the reception control information. To receive group data from the base station.

In one aspect of the present invention, a data communication method in a wireless communication system supporting a group channel resource allocation scheme for allocating channel resources using at least two or more terminals as a group includes at least two group indexes and each group index. Transmitting the specific group index selected from the group index configuration information including the data transmission control information corresponding to the terminal to the terminals belonging to the specific group and transmitting the group data to the specific group using the transmission control information corresponding to the specific group index. Characterized in that it comprises the step of transmitting to the terminals belonging to.

In another aspect of the present invention, a data communication method in a terminal that supports a channel resource allocation scheme for allocating channel resources using at least two or more terminals as a group includes receiving a group index from a base station and at least two or more groups. Acquiring data reception control information corresponding to the received group index from group index configuration information including indexes and data reception control information corresponding to each group index, and using the obtained data reception control information. And receiving the group data transmitted from the.

In still another aspect of the present invention, a wireless communication system apparatus supporting a group channel resource allocation scheme for allocating channel resources using at least two or more terminals as a group includes at least two group indexes and data corresponding to each group index. Terminals belonging to the specific group using the means for transmitting the specific group index selected from the group index configuration information including the transmission control information to the terminals belonging to the specific group and the transmission control information corresponding to the specific group index. It characterized in that it comprises a means for transmitting to.

In still another aspect of the present invention, a terminal apparatus supporting a group channel resource allocation scheme for allocating channel resources using at least two or more terminals as a group includes: means for receiving a group index from a base station; Means for obtaining data reception control information corresponding to the received group index from the group index configuration information including data reception control information corresponding to each group index, and transmitted from the base station using the obtained data reception control information. And means for receiving group data.

When the base station of the present invention allocates a radio resource to the terminal, through the group resource allocation and update method in consideration of the channel state and application service characteristics, there are the following effects.

First, there is an effect to efficiently manage the limited radio channel resources between the base station and the terminal, reducing the burden for radio resource allocation.

Secondly, the terminal may not decode in the silent section, thereby reducing the overhead of the terminal.

According to the preferred embodiments of the present invention described below with reference to the accompanying drawings, the configuration, operation and other features of the present invention will be readily understood.

The embodiments described below are related to the case where the present invention is applied to the IEEE 802.16e system and the IEEE 802.16m system, which are standard standards for a multi-carrier multiple access system considering the mobility of a terminal [IEEEStd 802.16e-2005 And http://www.ieee802.org/16/published.html]

3 is a flowchart illustrating an example for group resource allocation between a terminal and a base station according to an embodiment of the present invention. In this case, the service flow refers to a flow of data such as packets in one direction on a connection between the base station and the terminal. In the following embodiments of the present invention, a base station is a node connected to a backbone network and performs communication with a terminal. The terminal is a node connected to the base station, and the type of the terminal connected to the base station may be mobile or fixed at a specific location. In FIG. 3 according to an embodiment of the present invention, the base station shares group index configuration information with the terminal prior to group resource allocation for group resource allocation.

Here, the group index configuration information refers to a set of control information including a plurality of group indexes and data transmission control information corresponding to each group index.

The group index according to an embodiment of the present invention refers to identification information that is grouped by the base station on at least one terminal to which the terminals are currently connected to the group for the grouping of the terminals and attached to the groups.

For grouping according to an embodiment of the present invention, parameters for configuring group index configuration information including data transmission control information, which are control information related to transmission and reception of data, are proposed. The data transmission control information refers to control information related to a data processing method performed by a transmitting side to transmit data to a receiving side in an actual channel space. Here, the data processing method includes an error correction technique for encoding encoded data according to a predetermined coding scheme and mapping the encoded data into symbols representing positions according to amplitude and phase constellation. Modulation method, a method of obtaining a time point at which data is transmitted on the antenna, and the like. In more detail, data transmission control information according to an embodiment of the present invention is data that provides information on a modulation and coding scheme applied before transmitting a data frame in channel space, a frame allocation period and an offset related to the transmission time of the frame. It serves as transmission control information. From the standpoint of the receiving side, the data transmission control information means control information necessary for successfully transmitting data sent by the transmitting side, and may be used instead of the term data reception control information. Data reception control information according to an embodiment of the present invention means control information related to a data processing method performed to receive data to a receiver. Here, the data processing method is a method of indicating the view information between the data received on the receiving antenna, a demodulation method for demapping from the transmitted transmitted modulation symbols back to the encoded data, and the coded according to the predetermined decoding method. Decoding methods for decoding data, and the like. In more detail, the data reception control information according to an embodiment of the present invention includes information related to a demodulation and decoding scheme for receiving and using a data frame sent by a transmitter and a transmission time of the frame. The parameters constituting the group index configuration information proposed in the embodiment of the present invention are as follows.

-Group index: index indicating group resource allocation

Period: Group resource allocation cycle

Allocation frame offset: a frame offset indicating when a group resource is allocated

MCS indicator: indicator indicating modulation scheme and code rate

-(Optional) allocation area: group resource allocation size and allocation area

Grouping according to an embodiment of the present invention is performed according to the parameters of the group index configuration information indicating the above-described data transmission control information. For example, a method of dividing the terminals with the same modulation scheme and code rate of the data currently being serviced, and allocating the frames at a specific point in time (allocation of frame allocation) in each of the predetermined resource allocation cycles may be used. . In addition, a group index for identifying each group is assigned to the divided groups as described above. That is, in an embodiment according to the present invention, the terminals can know their group information by receiving at least two or more group indexes and group index configuration information including data transmission control information corresponding to each group index. It is possible to communicate with the base station based on this.

In addition, other parameters related to data transmission and reception may be used as the criteria for grouping according to an embodiment of the present invention.

There are a static method and a dynamic method in which the group index configuration information defined according to an embodiment of the present invention is shared with the terminal.

The static configuration is a manner in which the terminals and the base station share the same group index configuration information in advance without separate information exchange for group index configuration. On the other hand, in the dynamic configuration method, when the group index is configured, the terminals and the base station exchange information with each other through negotiation with each other in the service generation process after initial network registration or network registration of the terminal. Alternatively, the base station may be achieved by delivering group index configuration information to the terminals. Static methods also have parameters that correspond to the above dynamic methods.

In FIG. 3, after the terminal performs a registration process with the base station, the terminal has the same group index configuration information as the base station (S401). That is, as described above, the UE informs the UE of group index configuration information such as a group index, a resource allocation period, and a resource allocation frame offset in advance so that the UE can know the resource allocation time for transmitting and receiving data. Even if a resource is allocated without resource allocation information from the base station, the terminal can transmit and receive data through a radio resource allocated to the terminal.

 The generation of a service flow in a real time packet service such as VoIP is done by Dynamic Service Addition (DSA). That is, in the case of an application service such as VoIP, a side to transmit sends a DSA REQ (Request), which is MAC management messages of a MAC layer, and the receiving side sends a DSA-RSP (Response), which is a response thereto. Therefore, when the terminal needs to generate a service flow capable of allocating group resources such as VoIP service or video streaming (S402), the terminal and the base station perform a service flow generation procedure using a MAC management message. The group index is allocated to the terminal (S403). At this time, the first group index is determined based on the downlink signal quality report information received from the terminal through a channel quality information channel (hereinafter referred to as CQICH) or a MAC management message.

The base station allocates resources for data burst transmission for the corresponding group according to the resource allocation period of the group, and informs the terminals of resource allocation information using the group index of the resource allocation information message (S404). The terminals receive and decode the group burst indicated by the group index allocated in the service generation process, and process the data packet transmitted to itself (S405). The base station transmits a group burst according to the resource allocation period of the group (S406), and the terminal processes it after receiving it as in step S405 (S407). The main configuration of the embodiment of the present invention has been described above with reference to FIG. 3, and detailed group index configuration information according to an embodiment of the present invention is described next.

4 illustrates group index configuration information according to an embodiment of the present invention. As shown in FIG. 4, in the group resource allocation method, a frame allocation period and allocation determined by the base station by grouping terminals having the same MCS level according to the MCS level, burst allocation period, and allocation frame offset for the burst data to be transmitted to the terminal. Group the groups according to the offset and assign terminals to the corresponding group. That is, it means a group resource allocation method through a predefined group index according to an MCS level, a burst allocation period, and an allocation frame offset according to a modulation method and a code rate. Here, the coding scheme may use various methods such as a convolutional coding scheme, a turbo coding scheme, and a low density parity check scheme (LDPC).

The group index structure of FIG. 4 illustrates an embodiment of a structure having four frames of an allocation period and an MCS level of eight levels. As shown in FIG. 4, the group index may implicitly indicate modulation scheme, code rate information, resource allocation period, and resource allocation frame offset. That is, for example, in FIG. 4, the group index 0 has an allocation frame offset of 0 when the group burst is allocated (i.e., assigned in a frame having a least significant bit (LSB) 2 bit value of frame number 00) and an allocation period of 4 Frame and modulation scheme and coding rate may indicate that the burst is encoded at QPSK 1/2 rate. Accordingly, when a specific group index is allocated from the base station, the terminal may receive a data burst in a corresponding frame at a corresponding period through a modulation scheme and a code rate implied by the group index. In this case, the base station may provide burst allocation information to the terminal by including a group index instead of the terminal identifier or the connection identifier in the resource allocation information message, and the modulation scheme and coding rate information of the corresponding group burst information resource allocation information message. Can be omitted from In addition, until the resource allocation is released, a predefined group index as shown in FIG. 4 may be allocated from the base station to the terminal when generating a service flow requiring group resource allocation. Hereinafter, a group index according to another period such as an allocation period of 2 frames or 6 frames may be defined, and a group index according to another MCS level such as 3 or 5 levels may be extended and defined. Such a group index may need to be changed or updated depending on the situation. The procedure is described below.

5 is a flowchart illustrating a group index update according to an embodiment of the present invention. Since the MCS level of the terminal is changed, it is necessary to update the group index between the base station and the terminal, the flow of the procedure for this. In FIG. 5, the terminal, which has a group resource allocation service activated and has been assigned the group index 0 from the base station, receives a group burst indicated by the group index 0 from the base station according to the resource allocation period of the group (S501). The base station transmits a group burst according to the resource allocation period of the group, and the terminal receives and processes it (S502). If a channel condition between the terminal and the base station changes and a need to change the MCS level for a signal received from the base station occurs (S503), the terminal performs a channel quality report using a fast feedback channel or MAC management message Alternatively, a change in the group index is requested using a UL signaling header or the like (S504).

The base station needs to change the group index of the terminal for MCS level update after receiving the channel quality report from the terminal, or when receiving a group index change request MAC management message from the terminal. Allocates a new group index of the MCS level suitable for the terminal (S505), and assigns the changed group index to the terminal using a resource allocation information message (DL-MAP), a MAC management message, or a DL signaling (sub) header. To transfer (S506). After receiving the new group index, the terminal receives the group burst of the MCS level changed from the base station in accordance with a group resource allocation period and processes it (S507).

In FIG. 5, the group index update operation when the MCS level of the UE is changed is taken as an example. In addition, the group index update operation may also be performed when the resource allocation period and the resource allocation frame offset are changed.

In order to transmit and receive a group burst through a group resource allocation method, which is an object of the present invention, the base station configures and transmits MAC PDUs of terminals having the same group index as a group burst, and the terminals assigned the group index receive the group burst. After decoding, the MAC PDU may be selectively processed through an identifier uniquely assigned to the terminal, such as a connection identifier in a MAC header, during the MAC PDU processing. Apart from this, it is also possible to predefine detailed allocation information for each terminal in a group burst. See below.

6 illustrates a subburst group configuration according to an embodiment of the present invention. Apart from the group assignment for the terminal, when the base station allocates a group burst, the base station pre-defines sub burst allocation information for each of the terminals and informs the terminal so that the terminal is assigned to itself within its group burst. Only relevant data can be processed. In this case, the resource allocation size, resource allocation order and location of the sub bursts are determined in advance, and a group sub burst identifier indicating the sub bursts is assigned to the terminal, so that the terminal receives the data delivered to itself without additional information even if the terminal receives the group burst. To be handled.

FIG. 6 illustrates an embodiment in which a plurality of subbursts are combined to form a group burst. As shown in FIG. 6, the group burst may be divided into a predetermined size when allocated to each of the terminals. When the base station allocates a sub burst identifier to the terminal and informs the resource allocation size of the sub burst in advance, Sub-Burst Identifier can know the location and size of its subburst from group burst without additional allocation information. In addition, if a sub burst allocation rule in a group is defined in advance, the terminal may receive the sub burst for itself without additional allocation information even if the group resource allocation region is changed as shown in FIG. 6. If the sub burst allocation size is changed, the base station provides the entire sub burst allocation information to the terminals having the corresponding group index through a resource allocation information message, so that the terminals can update the sub burst configuration information. Can be.

7 is a view for explaining a group CID allocation method according to an embodiment of the present invention. It is necessary to allocate a plurality of bursts for a terminal having a specific group index within one frame. To this end, the present invention proposes a Group CID (Group Connection Identifier). In the group CID allocation according to an embodiment of the present invention, the base station may allocate a group CID to the terminal for allocating several group bursts for each group index. In the group burst allocation method through the group index described above, one group burst can be allocated in one frame per group index. If a group burst is to be allocated, the group burst can be distinguished from the group index. Requires group CID. That is, a group index means an allocation period, a modulation scheme, and a code rate of a group burst, and may be scheduled with different group bursts between the terminals having the same period, modulation scheme, and code rate through a group CID. . The group CID may be allocated in the process of generating a service flow of the terminal, and each group burst may be indicated in the resource allocation information message through the group CID.

8 illustrates a group index deactivation operation according to an embodiment of the present invention. When a terminal uses a service such as VoIP, when the burst in its group burst corresponds to a silence section, it is inefficient for the terminal to decode the burst corresponding to its group index. . In order to prepare for such a case, a temporary group index deallocation method is proposed. To this end, processing is performed by distinguishing between an active area and an inactive area. The process before S830 is the same as that of FIG. 4. In the case of the deactivation region (S830), the base station transmits the deactivation indicator to the terminal using the resource allocation information message (DL-MAP), the MAC management message, or the DL signaling (sub) header (S840). The terminal that receives the deactivation indicator does not decode the group burst (S850) transmitted to it (S860). After the silence period is eliminated and it is necessary to send packet data to the terminal (S870), the base station transmits an activation indicator to the terminal (S880). Thereafter, the terminal decodes the burst S890 transmitted to the user in a period allocated to the terminal (S895). In addition, the terminal may determine that the uplink burst is an inactive area to create an inactivation indicator to replace the corresponding role of the base station using a MAC management message or a UL signaling header. With this function, when the terminal receiving the burst corresponding to the silent period receives the deactivation indicator, the terminal does not decode the burst corresponding to the group index in the corresponding frame, thereby preventing battery capacity consumption and reducing the burden on the base station. .

The data communication method according to an embodiment of the present invention has been described above. Next, an apparatus having a function of a data communication method according to an embodiment of the present invention will be described. According to an aspect of the present invention, there is provided a wireless communication system apparatus, comprising: means for transmitting a specific group index selected from group index configuration information including at least two or more group indexes and data transmission control information corresponding to each group index, to terminals belonging to a specific group; Means for transmitting group data to terminals belonging to the specific group by using transmission control information corresponding to the specific group index, and transmitting the group index configuration information to the terminals before transmitting the group index. do.

In addition, a terminal supporting a data communication method according to an embodiment of the present invention includes group index configuration information including means for receiving a group index from a base station, at least two or more group indexes, and data reception control information corresponding to each group index. Means for obtaining data reception control information corresponding to the received group index from and means for receiving group data transmitted from the base station using the obtained data reception control information.

Although the present invention has been described above with reference to the embodiments, it will be apparent to those skilled in the art that the present invention may be modified and modified in various ways without departing from the spirit and scope of the present invention. You will understand. Therefore, it will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit and essential features of the present invention. Accordingly, the above detailed description should not be construed as limiting in all aspects, but should be considered as illustrative. The scope of the invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the invention are included in the scope of the invention.

1 illustrates an example of a group resource allocation method.

2 illustrates an example of a frame structure supported by an IEEE 802.16 based system.

3 illustrates a group resource allocation service flow according to an embodiment of the present invention.

4 illustrates a group index configuration according to an embodiment of the present invention.

5 is a flowchart illustrating a group index update according to an embodiment of the present invention.

6 illustrates a subburst group configuration according to an embodiment of the present invention.

7 illustrates group CID allocation according to an embodiment of the present invention.

8 illustrates a group index deactivation operation according to an embodiment of the present invention.

Claims (24)

A data communication method in a wireless communication system that supports a group channel resource allocation scheme for allocating channel resources using at least two or more terminals as one group, Transmitting a specific group index selected from group index configuration information including at least two or more group indexes and data transmission control information corresponding to each group index, to terminals belonging to a specific group; And And transmitting group data to terminals belonging to the specific group by using transmission control information corresponding to the specific group index. The method of claim 1, The data transmission control information includes information related to a modulation and channel coding scheme applied to the group data. The method of claim 1, The data transmission control information includes information related to a modulation and channel coding scheme applied to the group data, and at least one of a burst allocation period and an allocation frame offset for the group data transmission. The method of claim 1, And transmitting the group index configuration information to the terminals before transmitting the specific group index. The method of claim 1, Changing a group index for the terminal according to feedback information received from the terminal belonging to the specific group; And transmitting the changed group index to the terminal. The method of claim 1, The group index configuration information further comprises a sub-burst identifier (sub-burst identifier) for the terminals. The method of claim 6, And the subburst identifier is added for identification in the specific group with respect to the terminals regardless of the resource allocation area in the specific group. The method of claim 1, The group index configuration information further comprises a group connection identifier (group connection identifier) for the terminals. The method of claim 8, The group connection confirmer is added to the terminal to allocate resources belonging to at least one group in a resource allocation period. The method of claim 1, And wherein the data control information further includes an inactivation indicator for the terminals. The method of claim 10, The deactivation indicator is a data communication method, characterized in that indicating whether the silence period for the terminals. A data communication method in a terminal supporting a group channel resource allocation scheme for allocating channel resources using at least two terminals as one group. Receiving a group index from a base station; Obtaining data reception control information corresponding to the received group index from group index configuration information including at least two or more group indexes and data reception control information corresponding to each group index; And And receiving group data transmitted from the base station using the obtained data reception control information. The method of claim 12, The data reception control information includes information related to a modulation and channel coding scheme applied to the group data. The method of claim 12, The data reception control information includes information related to a modulation and channel coding scheme applied to the group data, and at least one of a burst allocation period and an allocation frame offset for transmitting the group data. The method of claim 12, And before receiving the group index, receiving the group index configuration information from the base station. The method of claim 12, Transmitting a request for changing a group index for the terminal to the base station according to a change in channel status between the terminal belonging to the specific group and the base station; And receiving the changed group index for the terminal from the base station. The method of claim 12, Receiving a sub-burst identifier from the base station. The method of claim 17, And the subburst identifier is added for identification in the specific group with respect to the terminals regardless of the resource allocation area in the specific group. The method of claim 12, Receiving a group connection identifier from the base station. The method of claim 19, And the group connection checker is added to receive resource allocation belonging to at least one group in a resource allocation period from the base station. The method of claim 12, Receiving an inactivity indicator from the base station. The method of claim 21, The deactivation indicator is a data communication method, characterized in that indicating whether the silence period for the terminals. A wireless communication system apparatus supporting a group channel resource allocation method for allocating channel resources by using at least two or more terminals as a group, Means for transmitting a specific group index selected from group index configuration information including at least two or more group indexes and data transmission control information corresponding to each group index, to terminals belonging to a specific group; And And means for transmitting group data to terminals belonging to the specific group by using transmission control information corresponding to the specific group index. A terminal device supporting a group channel resource allocation scheme for allocating channel resources by setting at least two or more terminals as one group. Means for receiving a group index from a base station; Means for obtaining data reception control information corresponding to the received group index from group index configuration information including at least two or more group indexes and data reception control information corresponding to each group index; And Means for receiving group data transmitted from the base station using the obtained data reception control information.

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