KR100696336B1 - 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 processing 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 processing method when applying Hybrid ARQ type II / III for efficient data transmission in a wireless communication system, which is directly connected to a mobile station to allocate radio resources to the mobile station and interwork with a wireless communication core network when a call is connected. When the SRNC providing the mobile station and the CRNC managing the common channel of the wireless network exist in the same wireless network, it is necessary to generate an RLC-PDU in the RLC layer and support Hybrid ARQ type II / III. Generating a portion (HARQ-RLC-Control-PDU) including information on the RLC-PDU by referring to header portion information of the RLC-PDU; 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, by the MAC-D, the RLC-PDU and the HARQ-RLC-Control-PDU to a MAC-C / SH that processes a shared / shared channel portion in the MAC layer through a transport channel; Transform the RLC-PDU into a MAC-PDU in the MAC-C / SH, transform the HARQ-RLC-Control-PDU into a HARQ-MAC-Control-PDU, and TFI1 and HARQ-MAC for the MAC-PDU A fourth step of allocating TFI2 for a Control-PDU and transmitting it to the MAC-D and transmitting the MAC-PDU and the HARQ-MAC-Control-PDU to a physical layer of a base station through a transmission channel; And configuring the TFI1 and TFI2 received from the MAC-D in the physical layer of the base station as TFCI and transmitting the TFCI to the mobile station through a first physical channel, and receiving the MAC-PDU and the MAC-C / SH received from the MAC-C / SH. Transforming a HARQ-MAC-Control-PDU into a radio frame and transmitting it to the mobile station via a second physical channel.

4. Important uses of the invention

The present invention is used in Hybrid ARQ type II / III and the like.

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 processing method in a transmitting end according to the present invention.

8 is an exemplary explanatory diagram showing a data processing method at a receiving end according to the present invention;

9 is a flowchart of an embodiment of a data processing method 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 processing method for a hybrid automatic retransmission request 2/3 scheme (Hybrid ARQ type II / III) on a downlink of a broadband wireless communication system. For 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) When implementing Hybrid ARQ Type II / III, downlink shared channel (DSCH) is used to extract RLC-PDUs (Radio Link Control-Protocol Data Units) and HARQ-RLC-Control-PDUs extracted from the PDUs. And a computer-readable recording medium having recorded thereon a program for implementing 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-RRC (User Equipment-Radio Resource Control)" 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. Here, the efficient Hybrid ARQ type II / III is a technique applied between the mobile station 100 and the asynchronous wireless network 200, and is a technique used when a request for retransmission is requested from the receiver to the transmitter when there is an error in the received data. to be. 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 greatly 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.

In this way, 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. A computer-readable data recording method for transmitting the part containing the information about the RLC-PDU (HARQ-RLC-Control-PDU) to the receiving end (mobile station) more stably and a program for realizing the method. The purpose is to provide a recording medium.

In order to achieve the above object, the present invention provides a data processing method when hybrid ARQ type II / III is applied 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 a Radio Network Controller (hereinafter referred to as "CRNC") exists in the same radio network, a Radio Link Control-Protocol Data Unit (RLC-PDU) in an RLC (Radio Link Control, "RLC") layer. A part containing information on the RLC-PDU needed to generate an RLC-PDU and support Hybrid ARQ type II / III (hereinafter referred to as "HARQ-RLC-Control-PDU") Header part of the RLC-PDU A first step of generating by referring to the information; 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 Common / Shared (MAC-SH) for processing the common / shared channel portion in the MAC layer through the RLC-PDU and the HARQ-RLC-Control-PDU in the MAC-D through a transport channel. MAC-C / SH "); Transform the RLC-PDU into a MAC-PDU in the MAC-C / SH, transform the HARQ-RLC-Control-PDU into a HARQ-MAC-Control-PDU, and transport format indicator (TFI1) for the MAC-PDU 1) and TFI2 (Transport Format Indicator 2) for HARQ-MAC-Control-PDU are allocated and transmitted to the MAC-D, and the MAC-PDU and the HARQ-MAC-Control-PDU are transmitted through a transmission channel. A fourth step of transmitting to the physical layer; And configuring the TFI1 and TFI2 received from the MAC-D in the physical layer of the base station in a transport format combination set (TFCI) to the mobile station through a first physical channel, and received from the MAC-C / SH. And a fifth step of transforming the MAC-PDU and the HARQ-MAC-Control-PDU into a radio frame and transmitting the same to the mobile station through a second physical channel.

According to the present invention, the mobile station stores the RLC-PDU in a received radio frame in a buffer, extracts the RLC-PDU stored in the buffer using the HARQ-RLC-Control-PDU, and extracts the extracted RLC. The method further includes a sixth step of parsing the PDU and transmitting the response to the upper layer and transmitting a response to the wireless network.

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. SRNC (Serving Radio Network Controller, hereinafter referred to as "SRNC") which provides a service to the mobile station by interworking with a wireless communication core network when allocating a radio resource to a call connection and a control channel for managing a common channel of a wireless network. When a Network Controller (hereinafter referred to as "CRNC") exists in the same wireless network, an RLC-Radio Link Control-Protocol Data Unit (RLC-PDU) in an RLC (Radio Link Control) layer is referred to as "RLC". -PDU ") and the part containing information on the RLC-PDU necessary to support Hybrid ARQ type II / III (hereinafter referred to as" HARQ-RLC-Control-PDU ") Definition of header portion of RLC-PDU A first function of generating with reference to the beam; 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 Common / Shared (MAC-SH) for processing the common / shared channel portion in the MAC layer through the RLC-PDU and the HARQ-RLC-Control-PDU in the MAC-D through a transport channel. MAC-C / SH "); Transform the RLC-PDU into a MAC-PDU in the MAC-C / SH, transform the HARQ-RLC-Control-PDU into a HARQ-MAC-Control-PDU, and transport format indicator (TFI1) for the MAC-PDU 1) and TFI2 (Transport Format Indicator 2) for HARQ-MAC-Control-PDU are allocated and transmitted to the MAC-D, and the MAC-PDU and the HARQ-MAC-Control-PDU are transmitted through a transmission channel. A fourth function for transmitting to the physical layer; And configures the TFI1 and TFI2 received from the MAC-D in a physical layer of the base station as a transport format combination set (TFCI) to the mobile station through a first physical channel, and receives the same from the MAC-C / SH. Providing a computer-readable recording medium recording a program for realizing a fifth function of converting the MAC-PDU and the HARQ-MAC-Control-PDU into a radio frame and transmitting the same to a mobile station through a second physical channel. do.                     

According to the present invention, the mobile station stores the RLC-PDU in a received radio frame in a buffer, extracts the RLC-PDU stored in the buffer using the HARQ-RLC-Control-PDU, and extracts the extracted RLC. A computer readable recording medium having recorded thereon a program for further realizing a sixth function of interpreting and transmitting a PDU to a higher layer and transmitting a response thereto to the wireless network.

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, coding is variable according to channel environment when 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 the same asynchronous wireless network. By combining the coding rate with previously transmitted data and retransmitted data, the performance of the system can be improved.

In order to perform combining in Hybrid ARQ type II / III, the receiver must know the information on the RLC-PDU currently being received, and the part containing the information on the RLC-PDU is more stable than the data to be transmitted. Must be sent.

To this end, the present invention creates a part (HARQ-RLC-Control-PUD) containing the information on the RLC-PDU necessary to support Hybrid ARQ type II / III in the RLC protocol entity by referring to the RLC-PDU do. 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-D protocol entity using different kinds of logical channels or the same kind of logical channel, and the DSCH It is transmitted from the MAC-C / SH protocol entity to the physical layer using a transport channel such as a downlink shared channel, and is transmitted to a receiving end (mobile station) through a physical channel such as a physical downlink shared channel (PDSCH). .

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. In addition, 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.

The present invention relates to a hybrid ARQ Type II / III implementation method using a transport channel such as DSCH in a structure in which one RNC has a CRNC function and an SRNC function in an asynchronous radio network (UTRAN) 200 in an interworking structure as shown in FIG. 5A. It is about. That is, in the present embodiment, as a more preferred embodiment, it is assumed that the control radio network controller (CRNC) and the serving radio network controller (SRNC) are present in the same asynchronous wireless network.

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.

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-D protocol entity. In this case, different types of logical channels may be used or the same type of logical channels may be used.

If different types of logical channels are used, the RLC-PDU uses a logical channel such as a dedicated traffic channel (DTCH), and the HARQ-RLC-Control-PDU uses a dedicated control channel (DCCH) or the like. The same logical 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                     

The MAC-D protocol entity transmits the received RLC-PDU and HARQ-RLC-Control-PDU to the MAC-C / SH, and the MAC-C / SH transforms the RLC-PDU into a MAC-PDU, and the HARQ-RLC- Transform Control-PDU into HARQ-MAC-Control-PDU. Then, it is transmitted to a physical layer in the form of a transport block using a transport channel such as a DSCH, and the PHY-Data-REQ is used as a primitive.

In the physical layer, a CRC is added to a transport block received through a transport channel such as a DSCH, and the modulation process is performed through encoding, rate matching, interleaver, and the like. It transmits to a receiving end (mobile station) through a physical channel such as PDSCH.

First, a data processing procedure of a transmitting end (asynchronous wireless 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, the MAC-D protocol entity, the MAC-C / SH protocol entity, and the physical layer may perform normal operations at each protocol entity by the RRC protocol entity. Initialization is made (701).

The RLC protocol entity then receives the data that should be transmitted from the higher layer to the receiving end (mobile station) (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 portion of the created RLC-PDU. The generated RLC-PDU and the HARQ-RLC-Control-PDU are transmitted to the MAC-D protocol entity 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 through a logical channel such as DTCH (703), and generates the generated HARQ-RLC-Control. Send the PDU to the MAC-D protocol entity 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 through a logical channel such as DTCH.

In this case, the RLC-PDU and HARQ-RLC-Control-PDU generated by the RLC protocol entity are shown to be transmitted to the MAC-D protocol entity of the SRNC using different 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.

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

Subsequently, the MAC-C / SH protocol entity that receives the RLC-PDU from the MAC-D protocol entity transforms the received RLC-PDU into a MAC-PDU, and schedules the DSCH transport channel for transmission over a transport channel such as a DSCH. do. In operation 707, the MAC-PDU is transmitted to a physical layer of the Node B through a transmission channel such as a DSCH.

In addition, the MAC-C / SH protocol entity transforms the HARQ-RLC-Control-PDU received from the MAC-D protocol entity into a HARQ-MAC-Control-PDU (in this embodiment, the MAC-modified RLC-PDU). In order to distinguish between PDU and MAC-PDU modified HARQ-RLC-Control-PDU, MAC-PDU modified RLC-PDU in MAC-D protocol entity is called MAC-PDU, and HARQ-RLC-Control-PDU is called. The modified MAC-PDU is called HARQ-MAC-Control-PDU). In addition, the DSCH transmission channel is scheduled to transmit the HARQ-MAC-Control-PDU through a transmission channel such as a DSCH. Thereafter, the MAC-C / SH protocol entity transmits the HARQ-MAC-Control-PDU to the physical layer of the Node B through a transport channel such as a DSCH (708).

Here, if the MAC-C / SH protocol entity receives an association indicator indicating the association between the RLC-PDU and the HARQ-RLC-Control-PDU together with each PDU from the RLC protocol entity, the association indicator has the same value as the RLC. The above operations 707 and 708 are performed on the PDU and the HARQ-RLC-Control-PDU.

The MAC-C / SH protocol entity transmits a transport format indicator 1 (TFI1) and a transport format indicator 2 (TFI2) for the MAC-PDU and the HARQ-MAC-Control-PDU to the MAC-D (709). In contrast, the MAC-D protocol entity transmits TFI1 and TFI2 to the physical layer of the Node B (710).                     

Then, in the physical layer of Node B receiving the MAC-PDU and the HARQ-MAC-Control-PDU from the MAC-C / SH protocol entity, encoding, rate matching, By performing an modulation operation with an interleaver or the like, the MAC-PDU and the HARQ-MAC-Control-PDU are transformed into radio frames, and then transmitted to a receiving end (mobile station) through a physical channel such as PDSCH (712). ).

In addition, Node B receiving TFI1, TFI2, and TFI of DCH from MAC-D configures a Transport Format Combination Set (TFCI) and transmits it to a receiving end (mobile station) through a physical channel such as DPCH (711). ).

Now, referring to FIG. 8, a data processing procedure of a receiver (mobile station) when using Hybrid ARQ Type II / III in the asynchronous mobile communication system according to 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, the physical layer of the receiver receives a radio frame having an RLC-PDU and an HARQ-RLC-Control-PDU transmitted from the transmitter through a physical channel such as a PDSCH (802). In addition, the physical layer of the receiving end receives TFCI, which is information necessary to perform a physical layer operation, on the RLC-PCU and the HARQ-RLC-Control-PDU received through a physical channel such as a DPCH (803). .                     

Next, the physical layer of the receiving end transmits the data received through the physical channel such as DPCH to the MAC-D protocol entity (804).

The physical layer of the receiver acquires TFI2 of the HARQ-RLC-Control-PDU received through the physical channel such as PDSCH from the TFCI received through the physical channel such as DPCH and demodulates the radio frame of the PDSCH. After the process, de-interleaver, and decoding, it is transformed into HARQ-MAC-Control-PDU and transmitted to the MAC-C / SH protocol entity through a transport channel such as a DSCH (805). At this time, the radio frame having the received RLC-PDU is stored in a buffer. A data identifier for identifying the RLC-PDU stored in the buffer is generated and transmitted to the MAC-C / SH protocol entity together with the data of the HARQ-RLC-Control-PDU.

Subsequently, the MAC-C / SH protocol entity receives the HARQ-MAC-Control-PDU and the data identifier having the HARQ-RLC-Control-PDU from the physical layer and then HARQ-MAC-Control-PDU. After transforming to -RLC-Control-PDU, the HARQ-RLC-Control-PDU and data identifier are transmitted to the MAC-D protocol entity (806).

Then, the MAC-D protocol entity that receives the HARQ-RLC-Control-PDU and the data identifier from the MAC-C / SH protocol entity uses the logical channel such as DCCH to distinguish the HARQ-RLC-Control-PDU and the data identifier from the RLC protocol. Send to entity (807). In this case, if the same type of logical channel is used, the MAC-D protocol entity that receives the HARQ-RLC-Control-PDU and the data identifier from the MAC-C / SH protocol entity uses HARQ- using a logical channel such as DTCH. Send the RLC-Control-PDU and data identifier to the RLC protocol entity.

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 LCLC-HARQ-IND primitive having the sequence number, version number, and data identifier as parameters. 808 is sent to the RRC protocol entity.

Next, in the RRC protocol entity, a CPHY-HARQ-REQ primitive having a sequence number, a version number, and a data identifier as parameters of the CRLC-HARQ-IND primitive as a physical layer through a Control SAP between RRC and L1. Transmit (809).

Subsequently, the physical layer of the receiver extracts a radio frame having a RLC-PDU stored in a buffer and TFI1 using a received data identifier, and then demodulates the radio frame using TFI1, a sequence number, and a version number. After the process, the de-interleaver, and the decoding, the MAC-PDU is transformed into a MAC-PDU and transmitted to the MAC-C / SH protocol entity through a transmission channel such as a DSCH (810).

Then, the MAC-C / SH protocol entity interprets the received MAC-PDU, transforms it into an RLC-PDU, and transmits the received MAC-PDU to the MAC-D protocol entity (811).

Thereafter, the MAC-D protocol entity transmits the received RLC-PDU to the RLC protocol entity through a logical channel such as DTCH (812).

Next, the RLC protocol entity interprets the received RLC-PDU and transmits it to the upper layer (813).                     

Now, referring to Figure 9 will be described in more detail the data processing method when using the Hybrid ARQ Type II / III proposed in the present invention.

First, in RNC-RLC that receives data from a higher layer, the received data is converted into an RLC-PDU, and the generated RLC-PDU is converted into an RNC-MAC-D through a logical channel (MAC-D-Data-REQ primitive) such as DTCH. Send to protocol entity (901).

Thereafter, the RNC-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 RNC-RLC protocol entity transmits the generated HARQ-RLC-Control-PDU to the RNC-MAC-D protocol entity through a logical channel (MAC-D-Data-REQ primitive) such as DCCH (902).

Here, if the same kind of logical channel is used, the RNC-RLC protocol entity uses the generated HARQ-RLC-Control-PDU through the logical channel (MAC-D-Data-REQ primitive) such as DTCH. Send to D protocol entity.

Next, in the RNC-MAC-D protocol entity that receives the RLC-PDU through a logical channel (MAC-D-Data-REQ primitive) such as DTCH, the RLC-PDU using the MAC-C / SH-Data-REQ primitive. Send to the RNC-MAC-C / SH protocol entity (903).

In addition, the RNC-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 transmitted to the RNC-MAC-C / SH protocol entity (904).

Here, if the same type of logical channel is used, the RNC-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 RNC-MAC-C / SH protocol entity using the C / SH-Data-REQ primitive.

Meanwhile, the RNC-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 RLC-PDU and HARQ- After changing the RLC-Control-PDU to MAC-PDU and HARQ-MAC-Control-PDU, respectively, TFI1 and TFI2 are allocated (905).

The RNC-MAC-C / SH protocol entity forwards TFI1 and TFI2 to the MAC-D protocol entity (906). Then, the MAC-D protocol entity transmits TFI1 and TFI2 to the physical layer through a transport channel (PHY-Data-REQ primitive) such as DCH (909).

In addition, the RNC-MAC-C / SH protocol entity transmits the MAC-PDU to the physical layer of the Node B through a transport channel (PHY-Data-REQ primitive) such as a DSCH (907). . 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 RNC-MAC-C / SH protocol entity transmits the HARQ-MAC-Control-PDU to the physical layer of Node B through a transport channel (PHY-Data-REQ primitive) such as DSCH. Transmit 908. 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, the physical layer of Node B performs coding, interleaver, and modulation on the received MAC-PDU and HARQ-MAC-Control-PDU, and then modulates the PDSCH radio frame. It modifies and transmits the data to the mobile station UE (910).

The physical layer of Node B generates TFCI from the received TFI1 and TFI2 and transmits the TFCI to the mobile station UE through a physical channel such as DPCH (911).

Then, the UE-L1 of the receiving end (mobile station) receives a 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 receives a TFI1 through a physical channel such as a DPCH. , TF2 is received, and a demodulation process, a de-interleaver, and a decoding are performed on the radio frame having the TFI2 and the HARQ-RLC-Control-PDU. Then, the radio frame having the received TFI1 and the RLC-PDU is stored in a buffer, and a data identifier for discriminating the radio frame stored in the buffer is generated. Subsequently, the UE-L1 transmits the received HARQ-RLC-Control-PDU and the data identifier to the UE-MAC-C./SH protocol entity through a transport channel (PHY-Data-IND primitive) such as a DSCH (912). ).

Thereafter, the UE-MAC-C / SH protocol entity transmits the HARQ-RLC-Control-PDU and the data identifier to the UE-MAC-D protocol entity by using the MAC-C / SH-Data-IND primitive (913).

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 (914). . 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 915, 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 current UE-RLC and the UE-RRC.

Subsequently, in the UE-RRC protocol entity, a CPHY-HARQ-REQ primitive having the received data identifier, Sequence Number, and Version Number as primitive parameters is defined as UE-L1 between the current UE-L1 and the UE-RRC. The control SAP transmits to the UE-L1 (916).

Thereafter, the UE-L1 extracts the radio frame having the RLC-PDU stored in the buffer and the TFI1 using the received data identifier, and then immediately decodes the stored radio frame using the TFI1, the Sequence Number, and the Version Number. Or, it is determined whether to decode by combining with previous data, and then decodes and transmits the decoded data to a UE-MAC-C / SH protocol entity through a transport channel (PHY-Data-IND primitive) such as DSCH (917).                     

Next, the UE-MAC-C / SH protocol entity transmits the received RLC-PDU to the UE-MAC-D protocol entity using the MAC-C / SH-Data-IND (918).

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 (919).

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 RNC-RLC protocol entity (920).

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.

As described above, when the Hybrid ARQ Type II / III is used in an asynchronous mobile communication system, the new RLC-PDU is not changed without changing the type and format of the RLC data PDU and the type and format of the control PDU. By adding the HARQ-RLC-Control-PDU in the form, there is an effect that can be easily implemented without changing the existing RLC protocol entity operation.

Claims (19)

In the data processing method when Hybrid ARQ type II / III is applied for efficient data transmission in 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. If a CRNC (controlling radio network controller, hereinafter referred to as a "CRNC") that manages the same wireless network, To create an RLC-PDU (Radio Link Control-Protocol Data Unit, hereinafter referred to as "RLC-PDU") in the RLC (Radio Link Control, "RLC") layer, and support Hybrid ARQ type II / III. A first step of generating a portion including necessary information on the RLC-PDU (hereinafter referred to as “HARQ-RLC-Control-PDU”) with reference 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 step of transmitting "MAC-D" below; Medium-Access Control Common / Shared (MAC-SH) for processing the common / shared channel portion in the MAC layer through the RLC-PDU and the HARQ-RLC-Control-PDU in the MAC-D through a transport channel. MAC-C / SH "); Transform the RLC-PDU into a MAC-PDU in the MAC-C / SH, transform the HARQ-RLC-Control-PDU into a HARQ-MAC-Control-PDU, and transport format indicator (TFI1) for the MAC-PDU 1) and TFI2 (Transport Format Indicator 2) for HARQ-MAC-Control-PDU are allocated and transmitted to the MAC-D, and the MAC-PDU and the HARQ-MAC-Control-PDU are transmitted through a transmission channel. A fourth step of transmitting to the physical layer; And The TFI1 and TFI2 received from the MAC-D in the physical layer of the base station are configured as a Transport Format Combination Set (TFCI) and transmitted to the mobile station through a first physical channel, and received from the MAC-C / SH. A fifth step of transforming a MAC-PDU and the HARQ-MAC-Control-PDU into a radio frame and transmitting the same to a mobile station through a second physical channel; Data processing 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, In the RLC layer, Generating an association indicator indicating an association between the RLC-PDU and the HARQ-RLC-Control-PDU, and transmitting the RLC-PDU and the HARQ-RLC-Control-PDU together with each PDU during transmission; Data processing method for hybrid automatic retransmission request 2/3 in downlink of broadband wireless communication system. The method of claim 2, The association indicator, Downlink of the wideband wireless communication system, which is generated for each of the HARQ-RLC-Control-PDUs generated based on the RLC-PDU and the header part of the RLC-PDU, and has the same value when there is an association relationship. Data processing method for hybrid automatic retransmission request 2/3 scheme in link. The method of claim 3, wherein In the MAC-C / SH, When the association indicator is received with each PDU from the RLC layer through the MAC-D, the association indicator is used to simultaneously process the RLC-PDU and the HARQ-RLC-Control-PDU in association. A data processing method for a hybrid automatic retransmission request 2/3 scheme in the downlink of a broadband wireless communication system, characterized in that. The method of claim 1, The mobile station stores the RLC-PDU in a received radio frame in a buffer, extracts the RLC-PDU stored in the buffer using the HARQ-RLC-Control-PDU, and interprets the extracted RLC-PDU. A sixth step of transmitting the response to the wireless network after transmitting to a higher layer Data processing method for a hybrid automatic retransmission request 2/3 scheme in the downlink of the broadband wireless communication system further comprising. The method of claim 5, The sixth step, 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 the second physical channel, and to perform a physical layer operation ( A seventh step of receiving a TFCI); An eighth step of transmitting the TFCI to the MAC-D of the mobile station; Obtain the TFI2 of the HARQ-RLC-Control-PDU from the TFCI and perform a demodulation process, a de-interleaver, and a decoding process for the radio frame, and then the MAC-C of the mobile station through a transmission channel. A ninth step of transmitting to / SH; In performing the ninth step, the radio frame having the RLC-PDU is stored in the buffer, and a data identifier for distinguishing the RLC-PDU stored in the buffer is generated together with the HARQ-RLC-Control-PDU. A tenth step of transmitting to the MAC-C / SH of the mobile station; The MAC-C / SH of the mobile station receives the HARQ-MAC-Control-PDU and the data identifier having the HARQ-RLC-Control-PDU from the physical layer of the mobile station, and then receives the HARQ-MAC-Control-PDU. An eleventh step of transforming the HARQ-RLC-Control-PDU and then transmitting the HARQ-RLC-Control-PDU and a data identifier to the MAC-D of the mobile station; A 12th step in which the MAC-D of the mobile station transmits the HARQ-RLC-Control-PDU and the data discriminator 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 thirteenth step of transmitting a data identifier to a Radio Resource Control (RRC) layer of the mobile station; A fourteenth step of the RRC layer of the mobile station transmitting 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. The radio frame extracted by using a demodulation process, a de-interleaver, and a decoding process is transformed into a MAC-PDU and then transmitted to the MAC-C / SH of the mobile station through a transmission channel. Step 15; A sixteenth step in which the MAC-C / SH of the mobile station interprets the received MAC-PDU, transforms the MAC-PDU into the RLC-PDU, and then transmits the MAC-PDU to the MAC-D of the mobile station; A seventeenth step 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 An eighteenth step of interpreting and transmitting the RLC-PDU received from the RLC layer of the mobile station to the upper layer and transmitting a response thereto to the wireless network; Data processing 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 6, The thirteenth 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. Data transmission method for the hybrid automatic retransmission request 2/3 scheme in downlink of the wideband wireless communication system, characterized in that the data discriminator is transmitted to the RRC layer of the mobile station through a CRLC-HARQ-IND primitive. The method of claim 6, The fourteenth 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 processing method for hybrid automatic retransmission request 2/3 scheme in link. The method according to any one of claims 1 to 8, The fourth step, A 19th step in which the MAC-C / SH receives the RLC-PDU and the HARQ-RLC--Control-PDU from the MAC-D; 20th step of allocating the TFI1 for the RLC-PDU and the TFI2 for the HARQ-RLC-Control-PDU and transmitting the TFI1 and the TFI2 to the MAC-D; A twenty-first step of transforming the received RLC-PDU and the HARQ-RLC-Control-PDU into the MAC-PDU and the HARQ-MAC-Control-PDU and performing transmission scheduling to transmit using a transport channel; A twenty-second step of transmitting the MAC-PDU and the HARQ-MAC-Control-PDU to a physical layer of the base station; And When the association indicator is received with each PDU from the RLC layer through the MAC-D, the RLC-PDU and the HARQ-RLC associated with each other using the association indicator when performing steps 21 and 22 are performed. Twenty-third step of concurrent processing of Control-PDUs Data processing 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 9, The fifth step, A twenty-third step in which the physical layer of the base station configures the TFI1 and the TFI2 received from the MAC-D into the TFCI and transmits the TFCI to the mobile station through the first physical channel; And The physical layer of the base station encodes, rate matches, interleavers, and modulates the RLC-PDU and the HARQ-RLC-Control-PDU received from the MAC-C / SH. After transforming to a radio frame, transmitting the modified radio frame to the mobile station through the second physical channel Data processing 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 10, The logical channel is, Data processing for 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. Way. The method of claim 10, The logical channel is, A dedicated traffic channel (DTCH) logical channel for delivering the RLC-PDU and a dedicated control channel (DCCH) logical channel for delivering the HARQ-RLC-Control-PDU. Data processing method for hybrid automatic retransmission request 2/3 scheme in downlink. The method of claim 10, The transmission channel, Data processing for the hybrid automatic retransmission request 2/3 scheme in the 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 Way. The method of claim 10, The first physical channel is, And a dedicated physical channel (DPCH) physical channel for delivering the TFCI. 2. The data processing method for a hybrid automatic retransmission request 2/3 scheme in downlink of a broadband wireless communication system. The method of claim 14, The second physical channel is, Physical downlink shared channel (PDSCH) physical channel for transmitting the MAC-PDU and the HARQ-MAC-Control-PDU physical data for the hybrid automatic retransmission request 2/3 scheme in the downlink of the broadband wireless communication system Treatment method. The method of claim 10, The wireless network, A data processing method for a hybrid automatic retransmission request 2/3 scheme in downlink of a broadband wireless communication system, characterized in that the 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. If a CRNC (controlling radio network controller, hereinafter referred to as a "CRNC") that manages the same wireless network, To create an RLC-PDU (Radio Link Control-Protocol Data Unit, hereinafter referred to as "RLC-PDU") in the RLC (Radio Link Control, "RLC") layer, and support Hybrid ARQ type II / III. A first function of generating a portion including required information about the RLC-PDU (hereinafter referred to as "HARQ-RLC-Control-PDU") with reference 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 Common / Shared (MAC-SH) for processing the common / shared channel portion in the MAC layer through the RLC-PDU and the HARQ-RLC-Control-PDU in the MAC-D through a transport channel. MAC-C / SH "); Transform the RLC-PDU into a MAC-PDU in the MAC-C / SH, transform the HARQ-RLC-Control-PDU into a HARQ-MAC-Control-PDU, and transport format indicator (TFI1) for the MAC-PDU 1) and TFI2 (Transport Format Indicator 2) for HARQ-MAC-Control-PDU are allocated and transmitted to the MAC-D, and the MAC-PDU and the HARQ-MAC-Control-PDU are transmitted through a transmission channel. A fourth function for transmitting to the physical layer; And The TFI1 and TFI2 received from the MAC-D in the physical layer of the base station are configured as a Transport Format Combination Set (TFCI) and transmitted to the mobile station through a first physical channel, and received from the MAC-C / SH. A fifth function of transforming a MAC-PDU and the HARQ-MAC-Control-PDU into a radio frame and transmitting the same to a mobile station through a second physical channel; A computer-readable recording medium having recorded thereon a program for realizing this. The method of claim 17, The mobile station stores the RLC-PDU in a received radio frame in a buffer, extracts the RLC-PDU stored in the buffer using the HARQ-RLC-Control-PDU, and interprets the extracted RLC-PDU. A sixth function of transmitting a response to the wireless network after transmitting to a higher layer A computer-readable recording medium that records a program for further realization. The method of claim 18, 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 the second physical channel, and to perform a physical layer operation ( A seventh function of receiving TFCI); An eighth function of sending the TFCI to the MAC-D of the mobile station; Obtain the TFI2 of the HARQ-RLC-Control-PDU from the TFCI and perform a demodulation process, a de-interleaver, and a decoding process for the radio frame, and then the MAC-C of the mobile station through a transmission channel. Ninth function of transmitting to / SH; In performing the ninth function, a radio frame having the RLC-PDU is stored in the buffer, and a data identifier for distinguishing the RLC-PDU stored in the buffer is generated, together with the HARQ-RLC-Control-PDU. A tenth function of transmitting to MAC-C / SH of the mobile station; The MAC-C / SH of the mobile station receives the HARQ-MAC-Control-PDU and the data identifier having the HARQ-RLC-Control-PDU from the physical layer of the mobile station, and then receives the HARQ-MAC-Control-PDU. An eleventh function of transforming the HARQ-RLC-Control-PDU and then transmitting the HARQ-RLC-Control-PDU and a data identifier to the MAC-D of the mobile station; A twelfth 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 thirteenth function of transmitting a data identifier to a Radio Resource Control (RRC) layer of the mobile station; A fourteenth function of sending, 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 fifteenth step of transforming the extracted radio frame into a MAC-PDU through a demodulation process, a de-interleaver, and a decoding, and then transmitting the MAC to a MAC-C / SH of the mobile station through a transmission channel; function; A sixteenth 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 seventeenth 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 An eighteenth function of interpreting 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 thereto to the wireless network; A computer-readable recording medium having recorded thereon a program for realizing this.

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