KR100641766B1 - Data delivery method for hybrid ARQ type 2/3 on the downlink of wide-band wireless communication system - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to a data transfer method for a hybrid automatic retransmission request 2/3 scheme in downlink of a broadband wireless communication system, and a computer-readable recording medium having recorded thereon a program for realizing the method.

2. The technical problem to be solved by the invention

According to the present invention, in the implementation of Hybrid ARQ type II / III for efficient packet data service in a wireless communication system, the transmitting end (wireless network) includes information on the RLC-PDU on the downlink so as to perform combining. To provide a data transmission method for transmitting the HARQ-RLC-Control-PDU to the receiving end (mobile station) more stably and a computer-readable recording medium recording a program for realizing the method.

3. Summary of Solution to Invention

The present invention relates to a data transfer method in the hybrid ARQ type II / III application for efficient data transmission in a wireless communication system, wherein the mobile station is directly connected to a mobile station to allocate radio resources to the mobile station. When the SRNC interworking with the wireless communication core network and the CRNC for managing the common channel of the wireless network are separated from each other and exist in different wireless networks when the call is connected, the RLC in the RLC layer of the SRNC Refer to the header part information of the RLC-PDU for the part (HARQ-RLC-Control-PDU) containing the information on the RLC-PDU needed to generate a PDU and support Hybrid ARQ type II / III. Generating a first step; A second step of transmitting the generated RLC-PDU and the HARQ-RLC-Control-PDU to a MAC-D processing a general user part in a MAC layer through a logical channel; Transmitting the RLC-PDU and the HARQ-RLC-Control-PDU in the MAC-D of the SRNC to a MAC-C / SH that processes a shared / shared channel portion in the MAC layer of the CRNC through a transport channel; Three steps; A fourth step of transforming the RLC-PDU and the HARQ-RLC-Control-PDU into a transport block in the MAC-C / SH of the CRNC and transmitting the transport block to a physical layer of a base station through a transport channel; And a fifth step of processing the transport block in a form of wireless transmission at the physical layer of the base station and transmitting the transport block to the mobile station through a physical channel.

4. Important uses of the invention

The present invention is used for Hybrid ARQ type II / III in mobile communication system.

Hybrid ARQ type II / III, downlink, association indicator, asynchronous network, data identifier

Description

Data delivery method for hybrid ARQ type 2/3 on the downlink of wide-band wireless communication system in downlink of broadband wireless communication system             

1 is an explanatory diagram showing a general RCPC or RCPT code.

2 is an exemplary configuration diagram of a general wideband wireless communication network (W-CDMA).

3 is an exemplary configuration diagram of a general asynchronous mobile communication system (UTRAN).

4 is a protocol stack diagram of the asynchronous mobile communication system (UTRAN) of FIG.

Figure 5a is a detailed configuration example of an asynchronous mobile communication system (UTRAN) when the RNC to which the present invention is applied both SRNC function and CRNC function.

Figure 5b is a detailed configuration example of asynchronous mobile communication system (UTRAN) when a specific RNC to which the present invention is applied performs the function of the CRNC and other RNC performs the function of the SRNC.

6 is an explanatory diagram showing a relationship between a conventional RLC-PU, an RLC-PDU, a MAC-PDU, and a transport block;

7 is a diagram illustrating an embodiment of a data transfer method in a transmitting end according to the present invention.

8 is a diagram illustrating an embodiment of a data transfer method at a receiving end according to the present invention;

9 is a flowchart of an embodiment of a data delivery method according to the present invention;

10 is a flowchart illustrating a data delivery method in the case of using an association indicator according to the present invention.

* Explanation of symbols for the main parts of the drawings

100: mobile station 200: asynchronous wireless network

300: wireless communication core network

The present invention relates to a data transmission method for a hybrid automatic retransmission request type 2/3 (Hybrid ARQ type II / III) over a downlink of a broadband wireless communication system. Efficient packet data service in next-generation mobile communication based asynchronous wireless communication system (W-CDMA) such as International Mobile Telecommunication (IMT-2000) and Universal Mobile Telecommunications System (UMTS), which are being standardized in North America and Europe. In the implementation of Hybrid ARQ Type II / III, a downlink shared channel (DSCH) is used to extract the RLC-PDU (Radio Link Control-Protocol Data Unit) and HARQ-RLC-Control-PDUs extracted from the PDUs. And a computer-readable recording medium having recorded thereon a program for realizing the method. It is.

The terms used in the present invention are defined as follows.

"RNC-Radio Link Controller (RLC)" is a control station-radio link control protocol layer entity.

"RNC-Radio Network Controller-Medium Access Control Dedicated Entity" is an entity dedicated to a control station-media access control protocol layer terminal.

"RNC-Radio Network Controller-Medium Access Control Common / Shared Entity" is a control station-media access control protocol layer terminal shared / shared entity.

"Node B-L1" is a base station-physical channel layer entity.

"UE-L1" is a terminal-physical channel layer entity.

"UE-MAC-C / SH (User Equipment-Medium Access Control Common / Shared Entity)" is a terminal-media access control protocol layer terminal common / shared entity.

"UE-User Equipment-Medium Access Control Dedicated Entity" is a UE-Media Access Control Protocol layer UE-dedicated entity.

"UE-User Equipment-Radio Link Control (RLC)" is a terminal-radio link control protocol layer entity.

"UE-User Equipment-Radio Resource Control (RRC)" is a terminal-radio resource control protocol layer entity.

"Iub" represents the interface between the control station (RNC) and the base station (Node B).

"Iur" represents an interface between the control station RNC and another control station RNC.

"Uu" represents a radio interface between a base station Node B and a terminal UE.

A "Logical channel" is a logical channel used for exchanging data between an RLC protocol entity and a MAC protocol entity.

A "transport channel" is a logical channel used for exchanging data between a MAC protocol entity and a physical layer.

"Physical channel" is an actual channel used to exchange data between a terminal and a system through a wireless environment.

When transmitting data to a mobile station (UE) in a wireless network of an asynchronous mobile communication system (UTRAN), it is possible to use "Hybrid ARQ type II / III", which has better throughput than "Hybrid ARQ type I".

FIG. 2 is an exemplary configuration diagram of a general wideband wireless communication network (W-CDMA), and illustrates an asynchronous mobile communication system (UTRAN) environment as an example.

As shown in FIG. 2, an asynchronous mobile communication system (UTRAN) includes a mobile station (UE) 100, an asynchronous wireless network 200, and a wireless communication core network (eg, a GSM-MAP core network) ( 300 is organically connected between. Efficient Hybrid ARQ type II / III is a technology applied between the mobile station 100 and the asynchronous wireless network 200. The ARQ type II / III is used to request retransmission from the receiving side to the transmitting side when there is an error in the received data. Technology. The protocol stack structure in this interworking structure is shown in FIG. 4.

3 is a detailed configuration example of a general asynchronous mobile communication system (UTRAN), where "Iu" is an interface between the wireless communication core network 300 and the asynchronous wireless network 200, and "Iur" is an asynchronous wireless network. A logical interface between the control station RNC of 200, and " Iub " represents an interface between the control station RNC and the base station (Node B), respectively. On the other hand, "Uu" represents an air interface between an asynchronous mobile communication system (UTRAN) and a mobile station (UE: User Equipment).

Here, Node B is a logical node that is responsible for radio transmission and reception from or to the UE in one or more cells.

In general, the asynchronous mobile communication system (UTRAN: UMTS Terrestrial Radio Access Network) checks the data transmitted from the transmitting side to the receiving side and requests retransmission to the transmitting side if there is an error in the received data. There is an Automatic Repeat ReQuest (ARQ) method, which is divided into three types: Automatic Retransmission Request (ARQ) types I, II, and III. The technical characteristics of each method are as follows.

Automatic retransmission request (ARQ) is an error control protocol that automatically detects that an error occurred during transmission and receives the block in which the error occurred. That is, as one of the error control methods in data transmission, when an error is detected, the system automatically generates a retransmission request signal and retransmits it from the wrong signal.

In the asynchronous mobile communication system (UTRAN), an ARQ scheme for requesting retransmission of an error-prone packet may be used to transmit packet data.

However, due to the instability of the wireless channel environment, when using this ARQ scheme, the number of retransmission requests may increase, thereby reducing throughput, which is an amount of data that can be sent in unit time. Therefore, ARQ can be used together with FEC (Forward Error Correction Coding) to reduce this problem. This is called Hybrid ARQ.

Hybrid ARQ has types I, II, and III according to the scheme.

In the case of Type I, one coding rate (e.g., No Coding, Rate 1/2, Rate 1/3, among convolutional coding) depending on the channel environment or required Quality of Service (QoS) If it is determined, it continues to use it, and the receiving end removes the previously received data when the retransmission request is made, and the transmitting end retransmits it at the previously transmitted coding rate. In this case, since the coding rate does not change according to the variable channel environment, the throughput may be reduced compared to Types II and III.

In case of Type II, when the receiver requests data retransmission, it does not remove it, but stores it in a buffer and combines it with the retransmitted data. That is, the first coding rate is transmitted at a high coding rate, and when retransmission is requested, the coding rate is transmitted at a lower coding rate, thereby combining with previously received data. performance can be significantly improved compared to Type I by performing maximal ratio combining. For example, if there is a mother code having a convolutional coding rate of 1/4, the punching rate is used to make a coding rate of 8/9, 2/3, 1 A coding rate such as / 4 can be created, which is called a rate compatible punctured convolutional (RCPC) code. This example is shown in FIG.

Meanwhile, a code that can be obtained by punching a Turbo code is called a "Rate Compatible Punctured Turbo" code. Referring to FIG. 1, when the first transmission is performed at a coding rate of 8/9, and the retransmission relation is ver (0), an error is detected by checking a cyclic redundancy check (CRC). If found, this data is stored in a buffer and requires retransmission. In this case, retransmission is performed at a coding rate of 2/3, and the retransmission relation is ver (1). Here, the receiving end combines ver (0) stored in the buffer and ver (1) received, and decodes this value to check the CRC. Repeat this process until no error is found in the CRC test, and the recently transmitted ver (n) is combined with the previously transmitted ver (n-a) (0 <a ≦ n).

In case of Type III, it is almost the same as Type II. The difference is that before recombining the retransmitted data ver (n) with ver (na), first decode and then check the CRC. Send this value to the upper layer. If an error occurs, it is combined with ver (n-a) and the CRC is checked to determine whether to retransmit.

As such, the asynchronous mobile communication system (UTRAN) uses Hybid ARQ type II / III for efficient data transmission. Hybid ARQ type II / III is initially coded at a high coding rate, and when retransmitted, is coded at a low coding rate, and combined at the receiving end for throughput. ). Therefore, in order to combine, the protocol data unit (PDU) sequence number, the number of retransmissions, and the version must be known in advance, and this information must be guaranteed using a low coding rate regardless of the retransmission coding rate.

However, in the case of Hybid ARQ type II / III in the asynchronous mobile communication system (UTRAN), since an initial transmission is transmitted at a high coding rate, the possibility of an error in the header portion of the RLC-PDU increases. Therefore, a method of more stably transmitting the RLC-PDU header is required.

In order to meet the above requirements, the present invention proposes that when a hybrid ARQ type II / III implementation for efficient packet data service in a wireless communication system is performed, a transmitting end (wireless network) is performed on a downlink so as to perform combining. Data transfer method for transmitting the part containing information about RLC-PDU (HARQ-RLC-Control-PDU) to the receiving end (mobile station) more stably and a program for realizing the method can be read by a computer The purpose is to provide a recording medium.

In order to achieve the above object, the present invention provides a data transfer method in a hybrid ARQ type II / III application for efficient data transmission in a wireless communication system. Controlling Radio Network Controller (SRNC) for allocating radio resources to mobile stations and providing services to the mobile station by interworking with a wireless communication core network when a call is connected, and CRNC (Controlling) for managing common channels of a wireless network When Radio Network Controllers (hereinafter referred to as "CRNC") are separated from each other and exist in different radio networks, an RLC-PDU (Radio Link Control) in the RLC layer of the SRNC. A part containing information on the RLC-PDU necessary for generating a Protocol Data Unit (hereinafter referred to as "RLC-PDU") and supporting Hybrid ARQ type II / III (hereinafter referred to as "HARQ-RLC-Control"). -PDU " Hereinafter), the first step of generating by referring to the header portion information of the RLC-PDU; Medium Access Control Dedicated (MAC-D) for processing a general user portion in a MAC (Medium Access Control, MAC) layer through the generated RLC-PDU and the HARQ-RLC-Control-PDU A second step of transmitting "MAC-D" below; Medium Access Control (MAC-C / SH) for processing the shared / shared channel part in the MAC layer of the CRNC through the RLC-PDU and the HARQ-RLC-Control-PDU in the MAC-D of the SRNC through a transport channel. A third step of transmitting to Common / Shared, hereinafter referred to as "MAC-C / SH"; A fourth step of transforming the RLC-PDU and the HARQ-RLC-Control-PDU into a transport block in the MAC-C / SH of the CRNC and transmitting the transport block to a physical layer of a base station through a transport channel; And a fifth step of processing the transport block in a form of wireless transmission in the physical layer of the base station and transmitting the transport block to the mobile station through a physical channel.

The present invention also stores the received RLC-PDU in a buffer, extracts the RLC-PDU stored in the buffer using the HARQ-RLC-Control-PDU, and extracts the extracted RLC-PDU. The method further includes a sixth step of transmitting the response to the wireless network after the analysis and the transmission to the upper layer.

In order to achieve the above object, the present invention provides a hybrid ARQ type II / III method for hybrid automatic retransmission for efficient data transfer, and is directly connected to a mobile station in a wireless communication system having a processor. Controlling Radio Network Controller (SRNC) for allocating radio resources to mobile stations and providing services to the mobile station by interworking with a wireless communication core network when a call is connected, and CRNC (Controlling) for managing common channels of a wireless network When Radio Network Controllers (hereinafter referred to as "CRNC") are separated from each other and exist in different radio networks, an RLC-PDU (Radio Link Control) in the RLC layer of the SRNC. A part containing information on the RLC-PDU necessary for generating a Protocol Data Unit (hereinafter referred to as "RLC-PDU") and supporting Hybrid ARQ type II / III (hereinafter referred to as "HARQ-RLC-Control"). -PDU ") A first function of generating an RS by referring to header portion information of the RLC-PDU; Medium Access Control Dedicated (MAC-D) for processing a general user portion in a MAC (Medium Access Control, MAC) layer through the generated RLC-PDU and the HARQ-RLC-Control-PDU A second function for transmitting to " MAC-D " Medium Access Control (MAC-C / SH) for processing the shared / shared channel part in the MAC layer of the CRNC through the RLC-PDU and the HARQ-RLC-Control-PDU in the MAC-D of the SRNC through a transport channel. A third function for transmitting to Common / Shared, hereinafter referred to as "MAC-C / SH"; A fourth function of transforming the RLC-PDU and the HARQ-RLC-Control-PDU into a transport block in the MAC-C / SH of the CRNC and transmitting the transport block to a physical layer of a base station through a transport channel; And a computer-readable recording medium having recorded thereon a program for realizing a fifth function of processing the transport block in a form of wireless transmission in the physical layer of the base station and transmitting the transport block to the mobile station through a physical channel.

The present invention also stores the received RLC-PDU in a buffer, extracts the RLC-PDU stored in the buffer using the HARQ-RLC-Control-PDU, and extracts the extracted RLC-PDU. The present invention provides a computer-readable recording medium having recorded thereon a program for realizing a sixth function of analyzing and transmitting to a higher layer and transmitting a response to the upper layer.

The present invention is a scheme for implementing a hybrid ARQ type II / III on the downlink of an asynchronous mobile communication system composed of a Control Radio Network Controller (CRNC) and a Serving Radio Network Controller (SRNC), using a packet data service. Applicable to the technical field.                     

According to the present invention, when a hybrid ARQ type II / III is used in an asynchronous mobile communication system in which a control radio network controller (CRNC) and a serving radio network controller (SRNC) exist in different asynchronous radio networks, Combining a coding rate with previously transmitted data and retransmitted data can improve the performance of the system and provide a service quality that can be satisfied by the user.

In order to perform combining in Hybrid ARQ type II / III, the receiving end should know the information on the RLC-PDU currently being received, and error protection for the part including the information on the RLC-PDU ) Should be sufficient.

To this end, the present invention generates a part (HARQ-RLC-Control-PUD) containing information on the RLC-PDU necessary to support Hybrid ARQ type II / III in the RLC protocol entity with reference to the RLC-PDU. . At this time, the HARQ-RLC-Control-PDU includes a sequence number of the RLC-PDU, a retransmission relationship number indicating a number of retransmissions, and the like.

The RLC-PDU and the generated HARQ-RLC-Control-PDU are transmitted from the RLC protocol entity to the MAC protocol entity using different kinds of logical channels or the same kind of logical channel. It is transmitted from the MAC protocol entity to the physical layer using one or two transport channels. In addition, it is transmitted from the transmitting end to the receiving end using one or two physical channels of the same type.

According to the present invention, by encoding the HARQ-RLC-Control-PDU at a low coding rate (low coding rate), it is possible to reduce the error of the portion containing the information about the RLC-PDU, and also at the receiving end Once the RLC-PDU has been stored in the buffer, only the HARQ-RLC-Control-PDU can be identified to determine how the data stored in the buffer can be processed, so that the information of the RLC-PDU is combined for the purpose of combining. There is no need to know in advance.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The asynchronous mobile communication system has an interworking structure as shown in FIG. Under this interworking structure, one or more control stations (RNC: Radio Network Controller) may exist in the asynchronous radio network (UTRAN: UMTS Terrestrial Radio Access Network (UTRAN) 200). Such a control station (RNC) may perform a Serving Radio Network Controller (SRNC) function, a Control Radio Radio Controller (CRNC) function, or both.

Here, the SRNC function is directly connected to the mobile station 100, allocates a radio resource to the mobile station 100, the RNC that can provide a service to the mobile station 100 by interworking with the wireless communication core network 300 at the time of call connection to be. The CRNC function refers to an RNC that exists in the entire asynchronous wireless network (UTRAN) 200 and manages a logical channel in the entire asynchronous wireless network (UTRAN) 200.

As such, the interworking structure and logical interface for the case where the RNC performs both the SRNC function and the CRNC function and when the specific RNC functions the CRNC function and the remaining RNC functions as the SRNC function are illustrated in FIGS. 5A and 5B.

In the present invention, there is one RNC functioning as a CRNC function in the asynchronous radio network (UTRAN) 200 in the interworking structure as shown in FIG. The present invention relates to a Type II / III implementation plan. That is, in the present embodiment, as a more preferred embodiment, it is assumed that a control radio network controller (CRNC) and a serving radio network controller (SRNC) exist in different asynchronous radio networks.

6 is an explanatory diagram showing a relationship between a conventional RLC-PU, an RLC-PDU, a MAC-PDU, and a transport block.

As shown in FIG. 6, one or several RLC-PUs become one RLC-PDU, an RLC-PDU is mapped to a MAC-PDU, and a MAC-PDU is a transport block of a physical layer. ) And the CRC is added.

In addition, the physical layer is transmitted through an encoding process such as encoding, rate matching, interleaver, and the like, and the CRC is demodulated, de-interleaver, and decoded after receiving the CRC. Check to determine if there is an error in the transmitted data. If an error exists, retransmission is requested, and the data in which the error occurs is stored in a buffer. At this time, the retransmitted RLC-PDU performs a decoding by combining with the RLC-PDU having an error stored in the buffer and then checks the CRC. In this case, it is necessary to know the number of RLC-PDUs currently received and the number of versions in order to combine them. In addition, in the case of Hybrid ARQ Type II / III, since an initial transmission is transmitted at a high coding rate, the possibility of an error in the header portion of the RLC-PDU increases.

In order to solve this problem, a HARQ-RLC-Control-PDU having information on a header part is generated from the RLC-PDU and transmitted together with the RLC-PDU.

That is, the RLC protocol entity generates an RLC-PDU and then configures HARQ-RLC-Control-PDU with reference to the header part information of the RLC-PDU.

In addition, the RLC protocol entity transmits the RLC-PDU and the generated HARQ-RLC-Control-PDU to the MAC protocol entity. In this case, different types of logical channels may be used or the same type of logical channels may be used.

When using different types of logical channels, the RLC-PDU uses a logical channel such as a dedicated traffic channel (DTCH), and the HARQ-RLC-Control-PDU uses a logical channel such as a dedicated control channel (DCCH). The channel is used, and the primitive is MAC-Data-REQ.

Meanwhile, when using the same kind of logical channel, the RLC-PDU and the HARQ-RLC-Control-PDU use a logical channel such as a dedicated traffic channel (DTCH), and a MAC-Data-REQ as a primitive. Use                     

In the MAC protocol entity, the received RLC-PDU and the HARQ-RLC-Control-PDU are transformed into transport blocks and transmitted to the physical layer. In this case, one transport channel is used, which is a transport block in which a RLC-PDU is transformed and a MAC-PDU (including RLC-PDU) (a) and a HARQ-RLC-Control-PDU, which is a transport block. PDU (including Control-RLC-PDU) (b) is transmitted through a transport channel such as a DSCH and the like, and PHY-Data-REQ is used as a primitive. In this case, the PHY-Data-REQ primitive may be used for each of the MAC-PDU (a) and the MAC-PDU (b), or MAC-PDU (a) and MAC-PDU (b) using one PHY-Data-REQ primitive ) May be transmitted to a physical layer.

In the physical layer, the received MAC-PDU (a) and MAC-PDU (b) are encoded by encoding, rate matching, interleaver and modulation, and a 10ms radio frame. frame), and transmits it to the receiving end (mobile station). In this case, one physical channel is used, and the MAC-PDU (a) and the MAC-PDU (b) are transformed into 10ms radio frames, and then physical such as a physical downlink shared channel (PDSCH). Use the channel to transmit to the receiving end (mobile station).

First, a data transmission process of a transmitting end (asynchronous radio network (UTRAN)) when using Hybrid ARQ type II / III in the asynchronous mobile communication system proposed in the present invention will be described with reference to FIG.

As shown in FIG. 7, the RLC protocol entity of the SRNC, the MAC-D protocol entity of the SRNC, the MAC-C / SH protocol entity of the CRNC, and the physical layer of the SRNC are normal by each RRC protocol entity. Initialization is performed to perform an operation (701).

Thereafter, the RLC protocol entity of the SRNC receives data to be transmitted from the upper layer to the receiving end (702). At this time, the RLC protocol entity makes the received data into an RLC-PDU and generates a HARQ-RLC-Control-PDU for using Hybrid ARQ type II / III based on the information of the header part of the created RLC-PDU. do. The generated RLC-PDU and the HARQ-RLC-Control-PDU are then transmitted to the MAC-D protocol entity of the SRNC through different types of logical channels or the same type of logical channel (703 and 704).

In this case, if different types of logical channels are used, the RLC protocol entity transmits the generated RLC-PDU to the MAC-D protocol entity of the SRNC through a logical channel such as DTCH (703), and generates the generated HARQ-RLC. The control-PDU is transmitted to the MAC-D protocol entity of the SRNC via a logical channel such as DCCH (704).

Meanwhile, when using the same kind of logical channel, the RLC protocol entity transmits the generated RLC-PDU and HARQ-RLC-Control-PDU to the MAC-D protocol entity of the SRNC through a logical channel such as DTCH (703, 704). .

In this case, the RLC-PDU and HARQ-RLC-Control-PDU generated by the RLC protocol entity are transmitted to the MAC-D protocol entity of the SRNC using different types of logical channels. In this RLC protocol entity operation, in order to maintain the association between the RLC-PDU and the HARQ-RLC-Control-PDU, an association indicator may be generated and transmitted together with each PDU when transmitting the RLC-PDU and HARQ-RLC-Control-PDU. have. Call processing procedure for this will be described later in FIG.

Next, the MAC-D protocol entity of the SRNC that receives the RLC-PDU and the HARQ-RLC-Control-PDU from the RLC protocol entity of the SRNC transmits it to the MAC-C / SH protocol entity of the CRNC (705,706).

Subsequently, in the MAC-C / SH protocol entity of the CRNC that receives the RLC-PDU and the HARQ-RLC-Control-PDU from the MAC-D protocol entity of the SRNC, the received RLC-PDU is transformed into a MAC-PDU (a), After transforming the received HARQ-RLC-Control-PDU into a MAC-PDU (b), the DSCH transmission channel to transmit the modified MAC-PDU (a), MAC-PDU (b) through a transmission channel such as DSCH Scheduling In operation 707, the MAC-PDU (a) and the MAC-PDU (b) are transmitted to a physical layer of the Node B through a transmission channel such as a DSCH.

Here, if the MAC-C / SH protocol entity of the CRNC receives an association indicator with each PDU indicating an association between the RLC-PDU and the HARQ-RLC-Control-PDU from the RLC protocol entity, the association indicator has the same value. The above operation 707 is performed with respect to the RLC-PDU and the HARQ-RLC-Control-PDU.

Subsequently, the MAC-PDU (a) received at the physical layer of Node B receiving the MAC-PDU (a) and the MAC-PDU (b) from the MAC-C / SH protocol entity of the CRNC. ), Encoding, rate matching, interleaver and modulation operation are performed on the MAC-PDU (b), and the MAC-PDU (a) and MAC-PDU (b) are 10ms radio frames. After modification, the signal is transmitted to a receiving end (mobile station) through a physical channel such as PDSCH (709). At this time, in the physical layer of Node B, a transport format indicator 1 (TFI1) and a transport format indicator 2 (TFI2) for the MAC-PDU (a) and the MAC-PDU (b) are MAC-C. / SH receives each PDU from the protocol entity and transmits it to the receiving end (mobile station) through a physical channel such as DPCH (708).

Now, referring to FIG. 8, a data transmission process of a receiver (mobile station) when using Hybrid ARQ type II / III in the asynchronous mobile communication system proposed by the present invention will be described.

As shown in FIG. 8, first, an RRC protocol entity, an RLC protocol entity, a MAC-D protocol entity, a MAC-C / SH protocol entity, and a physical layer may perform normal operations at each protocol entity. Initialization is made (801).

Subsequently, in the physical layer of the receiver, RLC-PDUs (MAC-PDU (a)) and HARQ-RLC-Control-PDUs (MAC-PDU (b)) transmitted from a transmitter through a physical channel such as PDSCH are selected. Receive a 10 ms radio frame with 802. The physical layer of the receiver receives TFI1 and TFI2, which are information necessary to perform physical layer operations on the RLC-PCU and HARQ-RLC-Control-PDU received through a physical channel such as DPCH ( 803).                     

Next, in the physical layer of the receiver, a demodulation process and a de-interleaver are performed on a 10ms radio frame having TFI2 and HARQ-RLC-Control-PDU among TFI1 and TFI2 received through a physical channel such as DPCH. In operation 804, the UE decodes the MAC-PDU, decodes it, and transmits the transformed MAC-PDU to the MAC-C / SH protocol entity using a transport channel such as a DSCH. At this time, the 10ms radio frame having the received TFI1 and RLC-PDU is stored in the buffer. A data identifier for identifying the RLC-PDU stored in the buffer is generated and transmitted to the MAC-C / SH protocol entity like the modified MAC-PDU.

Subsequently, the MAC-C / SH protocol entity receives the MAC-PDU having the HARQ-RLC-Control-PDU and the data identifier from the physical layer, and then transforms the MAC-PDU into the HARQ-RLC-Control-PDU. After that, the HARQ-RLC-Control-PDU and the data identifier are transmitted to the MAC-D protocol entity (805).

Then, the MAC-D protocol entity receiving the HARQ-RLC-Control-PDU and the data identifier from the MAC-C / SH protocol entity uses the logical channel such as DTCH if the same type of logical channel is used for HARQ-RLC. Send the Control-PDU and the data identifier to the RLC protocol entity (806). On the other hand, when using different types of logical channels, the HARQ-RLC-Control-PDU and the data discriminator transmit to the RLC protocol entity using a logical channel such as DCCH.

After that, the RLC protocol entity analyzes the received HARQ-RLC-Control-PDU, extracts a sequence number, a version number, and the like, and then uses a control SAP as a parameter of the CRLC-HARQ-IND primer having the sequence number, version number, and data identifier as parameters. The TV is sent to the RRC protocol entity (807).

Next, in the RRC protocol entity, the CPHY-HARQ-REQ primitive of the Control SAP between RRC and L1 is assigned a sequence number, a version number, and a data identifier received from the CRLC-HARQ-IND primitive through the Control SAP between RRC and L1. physical layer) (808).

Subsequently, the physical layer of the receiver extracts a 10 ms radio frame having a RLC-PDU stored in a buffer and a TFI1 using a received data identifier, and then extracts a 10 ms radio frame extracted using a TFI1, a sequence number, and a version number. After the demodulation process, the de-interleaver, and the decoding, the MAC-PDU is transformed into a MAC-PDU, and then transmitted to the MAC-C / SH protocol entity through a transmission channel such as a DSCH (809).

Then, the MAC-C / SH protocol entity interprets the received MAC-PDU, transforms it into an RLC-PDU, and transmits the MAC-PDU to the MAC-D protocol entity (810).

Thereafter, the MAC-D protocol entity transmits the received RLC-PDU to the RLC protocol entity through a logical channel such as DTCH (811). In this case, if a logical channel of the same type is used, it is transmitted to the RLC protocol entity through a logical channel such as DTCH, which is a channel such as HARQ-RLC-Control-PDU. If different types of logical channels are used, they are transmitted to the RLC protocol entity through a logical channel such as DTCH, which is a different channel from the HARQ-RLC-Control-PDU.

Next, the RLC protocol entity interprets the received RLC-PDU and transmits it to the higher layer (812).

Now, with reference to Figure 9 will be described in more detail the data transmission method when using Hybrid ARQ type II / III in the asynchronous mobile communication system proposed in the present invention.

First, SRNC-MAC-D receives the data from the upper layer, and makes the RLC-PDU the received data, and generates the RLC-PDU through the logical channel (MAC-D-Data-REQ primitive) such as DTCH. Send to protocol entity (901).

Subsequently, the SRNC-RLC protocol entity generates a HARQ-RLC-Control-PDU using the information of the header part in the generated RLC-PDU. In this case, the generated HARQ-RLC-Control-PDU includes information such as a sequence number and a version number. The SRNC-RLC protocol entity transmits the generated HARQ-RLC-Control-PDU to the SRNC-MAC-D protocol entity through a logical channel (MAC-D-Data-REQ primitive) such as DCCH (902).

Here, if the same type of logical channel is used, the SRC-RLC protocol entity uses the generated HARQ-RLC-Control-PDU as the DTCH logical channel, which is the same logical channel through which the RLC-PDU is transmitted. Accordingly, the SRNC-RLC protocol entity transmits the generated HARQ-RLC-Control-PDU to the SRNC-MAC-D protocol entity via a logical channel (MAC-D-Data-REQ primitive) such as DTCH.

Next, the SRNC-MAC-D protocol entity that receives the RLC-PDU through a logical channel (MAC-D-Data-REQ primitive), such as DTCH, uses the MAC-C / SH-Data-REQ primitive to RLC-PDU. Send to the CRNC-MAC-C / SH protocol entity (903). In this case, the transmitted form is defined in the Iur interface that defines the interface between the SRNC and the CRNC.

In addition, the SRNC-MAC-D protocol entity that receives the HARQ-RLC-Control-PDU through a logical channel (MAC-D-Data-REQ primitive) such as DCCH uses a MAC-C / SH-Data-REQ primitive. The HARQ-RLC-Control PDU is sent to the CRNC-MAC-C / SH protocol entity (904). In this case, the transmitted form is defined in the Iur interface that defines the interface between the SRNC and the CRNC.

Here, if the same type of logical channel is used, the SRNC-MAC-D protocol entity that receives the HARQ-RLC-Control-PDU through a logical channel (MAC-D-Data-REQ primitive) such as DTCH may use MAC- The HARQ-RLC-Control PDU is transmitted to the CRNC-MAC-C / SH protocol entity using the C / SH-Data-REQ primitive. In this case, the transmitted form is defined in the Iur interface that defines the interface between the SRNC and the CRNC.

Meanwhile, the CRNC-MAC-C / SH protocol entity performs DSCH transmission scheduling to transmit the received RLC-PDU and HARQ-RLC-Control-PDU through a transport channel such as DSCH, and then TFI1 for the RLC-PDU. And TFI2 for HARQ-RLC-Control-PDU, and the RLC-PDU and HARQ-RLC-RLC-Control-PDU are changed to MAC-PDU (905). At this time, the MAC-PDU modified RLC-PDU is MAC-PDU (a), the MAC-PDU modified HARQ-RLC-Cotnrol-PDU is MAC-PDU (b).

In the CRNC-MAC-C / SH protocol entity, the MAC-PDU (a) having the RLC-PDU and the allocated TFI1 are allocated to the Node B of the Node B through a transport channel (PHY-Data-REQ primitive) such as DSCH. In operation 906, the physical layer is transmitted to a physical layer. In this case, the transmitted form is a form defined in the Iub interface that defines the interface between the RNC and Node B.

In addition, the CRNC-MAC-C / SH protocol entity uses a MAC-PDU (b) having a HARQ-RLC-Control-PDU and a node through a transport channel (PHY-Data-REQ primitive) such as a DSCH using an allocated TFI1. A physical layer of the Node B is transmitted (907). At this time, the transmitted form is a form defined in the Iub interface defining the interface between the RNC and Node B (Node B).

Subsequently, coding is performed on the MAC-PDU (a) having the received RLC-PDU and the MAC-PDU (b) having the HARQ-RLC-Control-PDU in the physical layer of Node B. After deforming to a 10ms radio frame through an interleaver and a modulation process, the modified 10ms radio frame is transmitted to a mobile station (UE) through a physical channel such as PDSCH (908).

The physical layer of Node B transmits the received TFI1 and TFI2 to the mobile station UE through a physical channel such as DPCH (909).

Then, the UE-L1 of the receiving end (mobile station) receives a 10ms radio frame having an RLC-PDU and a HARQ-RLC-Control-PDU from a Node B-L1 through a physical channel such as a PDSCH, and then through a physical channel such as a DPCH. Receives TFI1, TF2, and performs demodulation, de-interleaver, and decoding on 10ms radio frame having TFI2 and HARQ-RLC-Control-PDU among the received contents, and then performs MAC-PDU Transform. Then, a 10ms radio frame having the received TFI1 and the RLC-PDU is stored in a buffer, and a data identifier for distinguishing the 10ms radio frame stored in the buffer is generated. Thereafter, the UE-L1 transmits the MAC-PDU (b) and the data discriminator to the UE-MAC-C / SH protocol entity through a transport channel (PHY-Data-IND primitive) such as DSCH (910).

Thereafter, the UE-MAC-C / SH protocol entity transforms the received MAC-PDU into a HARQ-RLC-Control-PDU, and then uses the MAC-C / SH-Data-IND primitive to identify the HARQ-RLC-Control-PDU. And the data discriminator to the UE-MAC-D protocol entity (911).

Next, the UE-MAC-D protocol entity transmits the HARQ-RLC-Control-PDU and the data identifier to the UE-RLC protocol entity through a logical channel (MAC-D-Data-IND primitive) such as DCCH (912). . In this case, if the same type of logical channel is used, the UE-MAC-D protocol entity uses the HARQ-RLC-Control-PDU and the data distinguisher through a logical channel (MAC-D-Data-IND primitive) such as DTCH. Send to the RLC protocol entity.

Subsequently, the UE-RLC protocol entity analyzes the received HARQ-RLC-Control-PDU and extracts a sequence number and a version number. In operation 913, the data identifier, the sequence number, and the version number are transmitted to the UE-RRC protocol entity as a primitive of the CRLC-HARQ-IND using a Control SAP defined between the UE-RLC and the UE-RRC.

Subsequently, in the UE-RRC protocol entity, a Control SAP, which is defined between the current UE-L1 and the UE-RRC, has a CPHY-HARQ-REQ primitive having the received data identifier, Sequence Number, and Version Number as primitive parameters. In step 914, the UE transmits the UE-L1 to the UE-L1.

Subsequently, the UE-L1 extracts a 10ms radio frame having a RLC-PDU stored in a buffer and a TFI1 using the received data identifier, and then demodulates the decode process for the 10ms radio frame extracted using the TFI1, Sequence Number, and Version Number. After de-interleaver, decoding, and transforming into a MAC-PDU, a MAC-PDU having an RLC-PDU is transferred to a UE-MAC- through a transport channel (PHY-Data-IND primitive) such as a DSCH. Transmit to C / SH protocol entity (915).

Next, the UE-MAC-C / SH protocol entity interprets the received MAC-PDU and transforms it into an RLC-PDU, and then converts the RLC-PDU into a UE-MAC-D using MAC-C / SH-Data-IND. Send to protocol entity (916).

Subsequently, the UE-MAC-D protocol entity transmits the received RLC-PDU to the UE-RLC protocol entity through a logical channel (MAC-D-Data-IND primitive) such as DTCH (917).

Finally, the UE-RLC protocol entity interprets the received RLC-PDU, converts it to the original data format, transmits the same to the upper layer, and transmits a response to the SRNC-RLC protocol entity (918).

Now, referring to FIG. 10 for a data transmission method when an association indicator is used for association between an RLC-PDU and a HARQ-RLC-Control-PDU when using Hybrid ARQ type II / III in the asynchronous mobile communication system presented in the present invention. It will be described in more detail.                     

Here, the association indicator is an indicator expressing an association between the RLC-PDU and the HARQ-RLC-Control-PDU generated based on the header portion of the RLC-PDU. This association indicator is created for each of the RLC-PDU and the HARQ-RLC-Control-PDU and, if there is an association, has the same value. By using this association indicator, the CRNC-MAC-C / SH protocol entity can simultaneously process the associated RLC-PDU and HARQ-RLC-Control-PDU, thereby enabling Hybrid ARQ type II / III operations. Helps you do it efficiently.

First, the received data is made an RLC-PDU in SRNC-RLC which has received data from a higher layer. In addition, an association indicator indicating an association between the RLC-PDU and the HARQ-Control-RLC-PDU used in Hybrid ARQ type II / III is generated. The generated RLC-PDU and the association indicator are transmitted to the SRNC-MAC-D protocol entity through a logical channel (MAC-D-Data-REQ primitive) such as DTCH (101).

Subsequently, the SRNC-RLC protocol entity generates a HARQ-RLC-Control-PDU using the information of the header part in the generated RLC-PDU. In this case, the generated HARQ-RLC-Control-PDU includes information such as a sequence number and a version number. The SRNC-RLC protocol entity generates an association indicator indicating an association between the RLC-PDU and the HARQ-Control-RLC-PDU used in Hybrid ARQ type II / III. The value of this association indicator has the same value as the association indicator generated for the RLC-PDU in step "101". Subsequently, the SRNC-RLC protocol entity transmits the generated HARQ-RLC-Control-PDU and the association indicator to the SRNC-MAC-D protocol entity through a logical channel (MAC-D-Data-REQ primitive) such as DCCH. (102).

Here, if a logical channel of the same type is used, the SRNC-RLC protocol entity may assign the generated HARQ-RLC-Control-PDU and the association indicator to the SRNC through a logical channel (MAC-D-Data-REQ primitive) such as DTCH. Send to MAC-D protocol entity.

Next, the SRNC-MAC-D protocol entity that receives the RLC-PDU and an association indicator through a logical channel (MAC-D-Data-REQ primitive) such as DTCH uses a MAC-C / SH-Data-REQ primitive. The RLC-PDU and association indicator is sent to the CRNC-MAC-C / SH protocol entity (103). In this case, the transmitted form is defined in the Iur interface that defines the interface between the SRNC and the CRNC.

In addition, the SRNC-MAC-D protocol entity that receives the HARQ-RLC-Control-PDU and the association indicator through a logical channel (MAC-D-Data-REQ primitive) such as DCCH, has a MAC-C / SH-Data-REQ primitive. Use 104 to transmit the HARQ-RLC-Control PDU and the association indicator to the CRNC-MAC-C / SH protocol entity (104). In this case, the transmitted form is defined in the Iur interface that defines the interface between the SRNC and the CRNC.

Here, if the same kind of logical channel is used, the SRNC-MAC-D protocol entity receiving the HARQ-RLC-Control-PDu and the association indicator through a logical channel (MAC-D-Data-REQ primitive) such as DTCH. Uses the MAC-C / SH-Data-REQ primitive to transmit the HARQ-RLC-Control-PDU and the association indicator to the CRNC-MAC-C / SH protocol entity. In this case, the transmitted form is defined in the Iur interface that defines the interface between the SRNC and the CRNC.                     

Meanwhile, in the CRNC-MAC-C / SH protocol entity that receives the RLC-PDU, the HARQ-RLC-Control-PDU, and the association indicators for each PDU, first, the association indicators for each PDU are compared with each other and have different values. Store everything received in a buffer, and then compare it with the content received from the SRNC-MAC-D protocol entity, and in the same case, receive the received RLC-PDU and HARQ-RLC-Control-PDU over a transport channel such as a DSCH. After performing DSCH transmission scheduling to transmit, TFI1 for RLC-PDU and TFI2 for HARQ-RLC-Control-PDU are allocated, and RLC-PDU and HARQ-RLC-RLC-Control-PDU are converted to MAC-PDU. Change 105. At this time, the MAC-PDU modified RLC-PDU is MAC-PDU (a), the MAC-PDU modified HARQ-RLC-Cotnrol-PDU is MAC-PDU (b).

In the CRNC-MAC-C / SH protocol entity, the MAC-PDU (a) having the RLC-PDU and the allocated TFI1 are allocated to the Node B of the Node B through a transport channel (PHY-Data-REQ primitive) such as DSCH. Transmit to physical layer (106). In this case, the transmitted form is a form defined in the Iub interface that defines the interface between the RNC and Node B.

In addition, the CRNC-MAC-C / SH protocol entity uses a MAC-PDU (b) having a HARQ-RLC-Control-PDU and a node through a transport channel (PHY-Data-REQ primitive) such as a DSCH using an allocated TFI2. A physical layer of the Node B is transmitted (S107). At this time, the transmitted form is a form defined in the Iub interface defining the interface between the RNC and Node B (Node B).

Subsequently, coding is performed on the MAC-PDU (a) having the received RLC-PDU and the MAC-PDU (b) having the HARQ-RLC-Control-PDU in the physical layer of Node B. After transforming the 10ms radio frame through an interleaver and a modulation process, the modified 10ms radio frame is transmitted to a mobile station (UE) through a physical channel such as PDSCH (108).

The physical layer of Node B transmits the received TFI1 and TFI2 to the mobile station UE through a physical layer such as DPCH (109).

Then, the UE-L1 of the receiving end (mobile station) receives a 10ms radio frame having an RLC-PDU and a HARQ-RLC-Control-PDU from a Node B-L1 through a physical channel such as a PDSCH, and then through a physical channel such as a DPCH. Receives TFI1 and TF2, demodulates, de-interleavers and decodes a 10ms radio frame with TFI2 and HARQ-RLC-Control-PDU and transforms it into a MAC-PDU do. The 10ms radio frame having the received TFI1 and the RLC-PDU is stored in a buffer, and a data identifier for distinguishing the 10ms radio frame stored in the buffer is generated. Thereafter, the UE-L1 transmits the MAC-PDU, the data discriminator to the UE-MAC-C / SH protocol entity through a transport channel (PHY-Data-IND primitive) such as DSCH (110).

Thereafter, the UE-MAC-C / SH protocol entity transforms the received MAC-PDU into a HARQ-RLC-Control-PDU, and then uses the MAC-C / SH-Data-IND primitive to identify the HARQ-RLC-Control-PDU. And a data identifier to the UE-MAC-D protocol entity (111).

Next, the UE-MAC-D protocol entity transmits the HARQ-RLC-Control-PDU and the data identifier to the UE-RLC protocol entity through a logical channel (MAC-D-Data-IND primitive) such as DCCH (112). . In this case, if the same type of logical channel is used, the UE-MAC-D protocol entity uses the HARQ-RLC-Control-PDU and the data distinguisher through a logical channel (MAC-D-Data-IND primitive) such as DTCH. Send to the RLC protocol entity.

Subsequently, the UE-RLC protocol entity analyzes the received HARQ-RLC-Control PDU and extracts a sequence number and a version number. The data identifier, the sequence number, and the version number are transmitted to the UE-RRC protocol entity as a primitive of the CRLC-HARQ-IND by using a Control SAP defined between the UE-RLC and the UE-RRC (113).

Subsequently, the UE-RRC protocol entity uses a Control SAP defined between the current UE-L1 and the UE-RRC with a CPHY-HARQ-REQ primitive having the received data identifier, Sequence Number, and Version Number as primitive parameters. Transmit to the UE-L1 (114).

Subsequently, the UE-L1 extracts a 10ms radio frame having a RLC-PDU stored in a buffer and a TFI1 using the received data identifier, and then demodulates the decode process for the 10ms radio frame extracted using the TFI1, Sequence Number, and Version Number. After de-interleaver, decoding, and transforming into a MAC-PDU, a MAC-PDU having an RLC-PDU is transferred to a UE-MAC- through a transport channel (PHY-Data-IND primitive) such as a DSCH. Send to the C / SH protocol entity (115).

Next, the UE-MAC-C / SH protocol entity interprets the received MAC-PDU and transforms it into an RLC-PDU, and then converts the RLC-PDU into a UE-MAC-D using MAC-C / SH-Data-IND. Send to the protocol entity (116).

Subsequently, the UE-MAC-D protocol entity transmits the received RLC-PDU to the UE-RLC protocol entity through a logical channel (MAC-D-Data-IND primitive) such as DTCH (117).

Finally, the UE-RLC protocol entity interprets the received RLC-PDU, converts it into the original data format, transmits the same to the upper layer, and sends a response to the SRNC-RLC protocol entity (118).

The present invention described above is capable of various substitutions, modifications, and changes without departing from the spirit of the present invention for those skilled in the art to which the present invention pertains, and the above-described embodiments and accompanying It is not limited to the drawing.

The present invention as described above has the following effects.

First, by configuring the data and the main information (Sequence Number, Version Number, etc.) into different PDUs (RLC-PDU and HARQ-RLC-Control-PDU), each coding rate can be adjusted.

Second, by configuring the data and the main information (Sequence Number, Version Number, etc.) of the different PDU, it is possible to reduce the error occurrence probability of the PDU having the main information of the data.

Third, since the HARQ-RLC-Control-PDU is first identified among the received RLC-PDU and the HARQ-RLC-Control-PDU, data combining performed by the physical layer in the hybrid ARQ Type II / III implementation. Can be performed stably.

Fourth, since a transmission channel such as a DSCH is used, radio resources can be efficiently used, and time delay caused by resource allocation can be reduced.

Fifth, since only one transport channel is used, a delay problem that may occur in the Iur and the Iub can be reduced.

Claims (20)

In the data transmission method in the hybrid ARQ type II / III application for the hybrid automatic retransmission request for efficient data transmission in a wireless communication system, Serving Radio Network Controller (SRNC), which is directly connected to a mobile station, allocates radio resources to the mobile station and provides a service to the mobile station by interworking with a wireless communication core network when a call is connected, and a common channel of a wireless network. When the CRNC (Controlling Radio Network Controller, hereinafter referred to as "CRNC") managing the separate from each other exist in different wireless networks, Create an RLC-PDU (Radio Link Control-Protocol Data Unit, hereinafter referred to as "RLC-PDU") in the RLC (Radio Link Control, "RLC") layer of the SRNC, and hybrid ARQ type II / III Generating a part including information on the RLC-PDU necessary for supporting (hereinafter, referred to as “HARQ-RLC-Control-PDU”) by referring to header part information of the RLC-PDU; Medium Access Control Dedicated (MAC-D) for processing a general user portion in a MAC (Medium Access Control, MAC) layer through the generated RLC-PDU and the HARQ-RLC-Control-PDU A second step of transmitting "MAC-D" below; Medium Access Control (MAC-C / SH) for processing the shared / shared channel part in the MAC layer of the CRNC through the RLC-PDU and the HARQ-RLC-Control-PDU in the MAC-D of the SRNC through a transport channel. A third step of transmitting to Common / Shared, hereinafter referred to as "MAC-C / SH"; A fourth step of transforming the RLC-PDU and the HARQ-RLC-Control-PDU into a transport block in the MAC-C / SH of the CRNC and transmitting the transport block to a physical layer of a base station through a transport channel; And A fifth step of processing the transport block in a form of wireless transmission at the physical layer of the base station and transmitting the same to the mobile station through a physical channel; Data transmission method for a hybrid automatic retransmission request 2/3 scheme in the downlink of a broadband wireless communication system comprising a. The method of claim 1, The transport block, Hybrid automatic retransmission request 2/3 scheme in downlink of the broadband wireless communication system, characterized in that the first MAC-PDU including the RLC-PDU and the second MAC-PDU including the HARQ-RLC-Control-PDU Data delivery method for business. The method of claim 2, The fifth step, In the physical layer of the base station, the transport block is processed in the form of radio transmission and transmitted to the mobile station through a physical channel, for the first and second MAC-PDUs received from the MAC-C / SH together with each PDU. A data transmission method for a hybrid automatic retransmission request 2/3 scheme in downlink of a broadband wireless communication system, characterized in that TFI1 (Transport Format Indicator 1) and TFI2 (Transport Format Indicator 2) are added and transmitted. The method of claim 3, wherein After the mobile station stores the received RLC-PDU in a buffer, the RLC-PDU stored in the buffer is extracted using the HARQ-RLC-Control-PDU, and the extracted RLC-PDU is interpreted to a higher layer. After transmitting, the sixth step of transmitting a response to the wireless network Data transmission method for the hybrid automatic retransmission request 2/3 scheme in the downlink of the broadband wireless communication system further comprising. The method of claim 4, wherein The sixth step, The physical layer of the mobile station receives the radio frame having the RLC-PDU and the HARQ-RLC-Control-PDU transmitted from the wireless network through a physical channel, and needs information (TFI1, A seventh step of receiving TFI2); After demodulating, de-interleaver, and decoding the radio frame having TFI2 and the HARQ-RLC-Control-PDU among the TFI1 and TFI2, and transforming the second frame to the second MAC-PDU, An eighth step of transmitting to the MAC-C / SH of the mobile station through a transmission channel; When performing the eighth step, the second frame modified by storing a received radio frame having the TFI1 and the RLC-PDU in the buffer and generating a data identifier for distinguishing the RLC-PDU stored in the buffer A ninth step of transmitting to a MAC-C / SH of the mobile station, such as a MAC-PDU; The MAC-C / SH of the mobile station receives a data identifier and the second MAC-PDU having the HARQ-RLC-Control-PDU from the physical layer of the mobile station, and then transmits the second MAC-PDU to the HARQ-RLC. A tenth step of transforming the HARQ-RLC-Control-PDU and the data identifier to the MAC-D of the mobile station after transforming to Control-PDU; An eleventh step, wherein the MAC-D of the mobile station transmits the HARQ-RLC-Control-PDU and a data identifier to the RLC layer of the mobile station through a logical channel; The RLC layer of the mobile station analyzes the received HARQ-RLC-Control-PDU, extracts a sequence number and a retransmission relationship number, and then extracts a sequence number and a retransmission relationship number. A 12 th step of transmitting a data discriminator to a Radio Resource Control (RRC) layer of the mobile station; A thirteenth step, wherein the RRC layer of the mobile station transmits a sequence number, a retransmission relationship number, and a data identifier to the physical layer of the mobile station; After the physical layer of the mobile station extracts the radio frame having the RLC-PDU stored in the buffer and the TFI1 using the received data identifier, the TFI1, a sequence number, and a retransmission relationship number (Version number) are extracted. A fourteenth radio frame transformed into a MAC-PDU through a demodulation process, a de-interleaver, and a decoding, and then transmitted to a MAC-C / SH of the mobile station through a transmission channel; step; A fifteenth step of interpreting the received MAC-PDU by the MAC-C / SH of the mobile station, transforming the MAC-PDU into the RLC-PDU, and transmitting the MAC-PDU to the MAC-D of the mobile station; A sixteenth step of transmitting, by the MAC-D of the mobile station, the received RLC-PDU to the RLC layer of the mobile station through a logical channel; And A seventeenth step of analyzing the RLC-PDU received at the RLC layer of the mobile station and transmitting the RLC-PDU to the upper layer and transmitting a response to the radio network; Data transmission method for a hybrid automatic retransmission request 2/3 scheme in the downlink of a broadband wireless communication system comprising a. The method of claim 5, The twelfth step, The RLC layer of the mobile station analyzes the received HARQ-RLC-Control-PDU, extracts a sequence number and a retransmission relationship number, and then extracts a sequence number and a retransmission relationship number. And a data discriminator for transmitting a hybrid automatic retransmission request 2/3 scheme in downlink of the wideband wireless communication system, characterized by transmitting the data discriminator to the RRC layer of the mobile station through a CRLC-HARQ-IND primitive. The method of claim 5, The thirteenth step, The RRC layer of the mobile station transmits a sequence number, a retransmission relationship number, and a data discriminator to a physical layer of the mobile station through a CPHY-HARQ-REQ primitive. Data forwarding method for hybrid automatic retransmission request 2/3 scheme on link. The method according to any one of claims 1 to 7, The fourth step, An eighteenth step of performing transmission scheduling to transmit the RLC-PDU and the HARQ-RLC--Control-PDU received by the MAC-C / SH of the CRNC using a transmission channel; Allocating the TFI1 for the RLC-PDU and the TFI2 for the HARQ-RLC-Control-PDU, changing the RLC-PDU to the first MAC-PDU and replacing the HARQ-RLC-Control-PDU with the first A nineteenth step of changing to two MAC-PDUs; And 20th step of transmitting the TFI1 and the TFI2 allocated to the first and second MAC-PDUs to the physical layer of the base station; Data transmission method for a hybrid automatic retransmission request 2/3 scheme in the downlink of a broadband wireless communication system comprising a. The method of claim 8, The fifth step, Coding, interleaver, and modulation for the first MAC-PDU having the RLC-PDU and the second MAC-PDU having the HARQ-RLC-Control-PDU received by the physical layer of the base station. A twenty-first step of transmitting the modified radio frame to the mobile station through a physical channel after transforming the radio frame into a radio frame through a process; And A twenty-second step of transmitting the received TFI1 and the TFI2 to the mobile station through a physical layer; Data transmission method for a hybrid automatic retransmission request 2/3 scheme in the downlink of a broadband wireless communication system comprising a. The method according to any one of claims 1 to 7, In the RLC layer of the SRNC, A wideband characterized by generating an association indicator indicating an association between the RLC-PDU and the HARQ-RLC-Control-PDU and transmitting it with each PDU when the RLC-PDU and the HARQ-RLC-Control-PDU are transmitted A data transmission method for hybrid automatic retransmission request 2/3 scheme in downlink of a wireless communication system. The method of claim 10, The association indicator, Substantially, broadband wireless communication is made for each of the HARQ-RLC-Control-PDUs generated based on the header portion of the RLC-PDU and the RLC-PDU and has the same value when there is an association relationship. Data transmission method for hybrid automatic retransmission request 2/3 scheme in downlink of system. The method of claim 11, In the MAC-C / SH of the CRNC, When the association indicator is received with each PDU from the RLC layer of the SRNC through the MAC-D of the SRNC, the RLC-PDU and the HARQ-RLC-Control-PDU associated with the association indicator are used. A data transmission method for a hybrid automatic retransmission request 2/3 scheme in the downlink of a broadband wireless communication system, characterized in that for simultaneously processing. The method of claim 12, The logical channel is, Substantially, the hybrid automatic retransmission request 2/3 scheme in downlink of a broadband wireless communication system, characterized in that it is a dedicated traffic channel (DTCH) logical channel for transmitting the RLC-PDU and the HARQ-RLC-Control-PDU. Data transmission method. The method of claim 12, The logical channel is, Substantially, a broadband wireless channel comprising a Dedicated Traffic CHannel (DTCH) logical channel for carrying the RLC-PDU and a Dedicated Control CHannel (DCCH) logical channel for carrying the HARQ-RLC-Control-PDU. A data transmission method for a hybrid automatic retransmission request 2/3 scheme in downlink of a communication system. The method of claim 12, The transmission channel, Substantially, the hybrid automatic retransmission request 2/3 scheme in downlink of the broadband wireless communication system, characterized in that the downlink shared channel (DSCH) transmission channel for transmitting the RLC-PDU and the HARQ-RLC-Control-PDU. Data transmission method. The method of claim 12, The physical channel is, Substantially, Broadband Wireless Communication, characterized in that it is a Physical Downlink Shared Channel (PDSCH) for delivering the first and second MAC-PDU, and a Dedicated Physical Channel (DPCH) physical channel for delivering the TFI1 and the TFI2. Data transmission method for hybrid automatic retransmission request 2/3 method in downlink of system. The method of claim 12, The wireless network, A data transmission method for a hybrid automatic retransmission request 2/3 scheme in downlink of a broadband wireless communication system, which is substantially an asynchronous wireless network. In order to implement Hybrid ARQ type II / III (Hybrid ARQ type II / III) for efficient data transmission, Serving Radio Network Controller (SRNC), which is directly connected to a mobile station, allocates radio resources to the mobile station and provides a service to the mobile station by interworking with a wireless communication core network when a call is connected, and a common channel of a wireless network. When the CRNC (Controlling Radio Network Controller, hereinafter referred to as "CRNC") managing the separate from each other exist in different wireless networks, Create an RLC-PDU (Radio Link Control-Protocol Data Unit, hereinafter referred to as "RLC-PDU") in the RLC (Radio Link Control, "RLC") layer of the SRNC, and hybrid ARQ type II / III A first function of generating a portion including information on the RLC-PDU necessary to support (hereinafter, referred to as “HARQ-RLC-Control-PDU”) by referring to header portion information of the RLC-PDU; Medium Access Control Dedicated (MAC-D) for processing a general user portion in a MAC (Medium Access Control, MAC) layer through the generated RLC-PDU and the HARQ-RLC-Control-PDU A second function for transmitting to " MAC-D " Medium Access Control (MAC-C / SH) for processing the shared / shared channel part in the MAC layer of the CRNC through the RLC-PDU and the HARQ-RLC-Control-PDU in the MAC-D of the SRNC through a transport channel. A third function for transmitting to Common / Shared, hereinafter referred to as "MAC-C / SH"; A fourth function of transforming the RLC-PDU and the HARQ-RLC-Control-PDU into a transport block in the MAC-C / SH of the CRNC and transmitting the transport block to a physical layer of a base station through a transport channel; And A fifth function of processing the transport block in a form of wireless transmission at the physical layer of the base station and transmitting the same to the mobile station through a physical channel; A computer-readable recording medium having recorded thereon a program for realizing this. The method of claim 18, After the mobile station stores the received RLC-PDU in a buffer, the RLC-PDU stored in the buffer is extracted using the HARQ-RLC-Control-PDU, and the extracted RLC-PDU is interpreted to a higher layer. A sixth function of transmitting a response to the wireless network after the transmission; A computer-readable recording medium having recorded thereon a program for realizing this. The method of claim 19, The sixth function is Information required for the physical layer of the mobile station to receive a radio frame having the RLC-PDU and the HARQ-RLC-Control-PDU transmitted from the wireless network through a physical channel and perform a physical layer operation (TFI1, TFI2) A seventh function of receiving; After demodulating, de-interleaver, and decoding the radio frame having TFI2 and the HARQ-RLC-Control-PDU among the TFI1 and TFI2, and transforming the second frame to the second MAC-PDU, An eighth function of transmitting to the MAC-C / SH of the mobile station through a transmission channel; When performing the eighth step, the second frame modified by storing a received radio frame having the TFI1 and the RLC-PDU in the buffer and generating a data identifier for distinguishing the RLC-PDU stored in the buffer A ninth function for transmitting to a MAC-C / SH of the mobile station such as a MAC-PDU; The MAC-C / SH of the mobile station receives a data identifier and the second MAC-PDU having the HARQ-RLC-Control-PDU from the physical layer of the mobile station, and then transmits the second MAC-PDU to the HARQ-RLC. A tenth function of transforming the HARQ-RLC-Control-PDU and the data identifier to the MAC-D of the mobile station after transforming to Control-PDU; An eleventh function for the MAC-D of the mobile station to transmit the HARQ-RLC-Control-PDU and the data identifier to the RLC layer of the mobile station over a logical channel; The RLC layer of the mobile station analyzes the received HARQ-RLC-Control-PDU, extracts a sequence number and a retransmission relationship number, and then extracts a sequence number and a retransmission relationship number. ), A twelfth function of transmitting a data discriminator to a Radio Resource Control (RRC) layer of the mobile station; A thirteenth function for transmitting, by the RRC layer of the mobile station, a sequence number, a retransmission relationship number, and a data identifier to the physical layer of the mobile station; After the physical layer of the mobile station extracts the radio frame having the RLC-PDU stored in the buffer and the TFI1 using the received data identifier, the TFI1, a sequence number, and a retransmission relationship number (Version number) are extracted. A fourteenth radio frame transformed into a MAC-PDU through a demodulation process, a de-interleaver, and a decoding, and then transmitted to a MAC-C / SH of the mobile station through a transmission channel; function; A fifteenth function of interpreting the received MAC-PDU by the MAC-C / SH of the mobile station, transforming the MAC-PDU into the RLC-PDU, and then transmitting the MAC-PDU to the MAC-D of the mobile station; A sixteenth function of transmitting the RLC-PDU received by the MAC-D of the mobile station to a RLC layer of the mobile station through a logical channel; And A seventeenth function of interpreting and transmitting the RLC-PDU received at the RLC layer of the mobile station to the upper layer and transmitting a response thereto to the wireless network; A computer-readable recording medium having recorded thereon a program for realizing this.

Images