TWI578828B - Method and device for transmitting channel quality control information in wireless access system - Google Patents

Description

Method and device for transmitting channel quality control information in wireless access system

The present invention relates to a wireless access system, and more particularly to a method and apparatus for transmitting uplink control information (UCI) including channel quality control information in a carrier integrated environment (e.g., a multi-component carrier environment). The present invention relates to a method and apparatus for obtaining the number of resource elements (REs) allocated to UCI when UCI is piggybacked on a physical uplink shared channel (PUSCH).

The 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) (eighth or ninth edition) system (hereinafter referred to as LTE system) adopts multi-carrier modulation (multi-carrier) Modulation, MCM), the multi-carrier modulation is to divide a single component carrier (CC) into a plurality of frequency bands and use the plurality of frequency bands. However, the third-generation partner program LTE-advance system (LTE-A) (hereinafter referred to as LTE-A system) can use carrier aggregation (CA) that integrates one or more CCs. To support system bandwidth wider than LTE systems. The CA may be replaced by a carrier match, a multiple CC environment, or a multi-carrier environment.

In a single CC environment, such as an LTE system, only one scenario is described that multiplexes UCI and data on one CC by using multiple layers.

However, in a CA environment, one or more CCs may be used and the number of layers of UCI may be increased to the number of multiple CCs. For example, when the order indication information has 2 or 3 bits in the LTE system, the maximum indication information that the order indication information can have in the LTE-A system is 15 bits because the bandwidth can be extended to 5 CC.

In this case, UCI with a 15-bit size cannot be transmitted using the UCI transmission method defined in the LTE system, and even when a Reed-Muller (RM) code is used, it cannot be encoded. Therefore, the LTE-A system requires a new method for transmitting UCI with a large size.

Accordingly, the present invention is directed to a method and apparatus for transmitting channel quality control information that substantially obviate one or more problems due to limitations and deficiencies of the prior art.

It is an object of the present invention to provide a method of efficiently encoding and transmitting UCI in a multi-carrier environment (or CA environment).

Another object of the present invention is to provide a method for obtaining the number of REs allocated to UCI when UCI is piggybacked on a physical uplink shared channel.

It is still another object of the present invention to provide a method for calculating transmission channel quality control information (i.e., channel quality indicator (CQI) when retransmitting UCI using two or more transport blocks (TBs). And/or a method of precoding the matrix index (PMI) required number of REs.

It is still another object of the present invention to provide a user equipment (UE) and/or a base station apparatus for supporting the above method.

The technical problem to be solved by the present invention is not limited to the above technical problems, and other technical problems not mentioned above can be clearly understood by those skilled in the art from the following description.

The present invention relates to a method and apparatus for transmitting UCI including channel quality control information in a CA environment.

In one aspect of the invention, a method for transmitting channel quality control information using two transmission blocks in a wireless access system supporting a hybrid automatic re-request request (HARQ) includes the following steps: receiving includes Chain downlink control information (DCI) physical downlink control channel (PDCCH) signal; computing transmission using the downlink control information The number Q' of coded symbols required for channel quality control information; and the channel quality control information is transmitted by the physical uplink shared channel (PUSCH) based on the number of coded symbols.

In another aspect of the present invention, a user equipment for transmitting channel quality control information using two transmission blocks in a wireless access system supporting a hybrid automatic repeat request includes: a transmission module for transmitting a radio frequency signal; a receiving module for receiving a radio frequency signal; and a processor configured to support transmission of channel quality control information. The user equipment can receive an entity downlink control channel signal including downlink control information, calculate a quantity Q' of coding symbols required for transmitting channel quality control information using the downlink control information, and based on the number of the encoded symbols on the entity Channel quality control information is transmitted on the shared channel of the chain.

The number Q of coded symbols can be calculated using the following formula, ie And the downlink control information may include: information about the number of subcarriers of the first transmission block used for transmitting channel quality control information Information C ^{( x )} of the number of coded blocks associated with the first transport block; and information on the size of the coded block . Where x represents the index of one of the two transport blocks.

The first transport block may be a transport block with a higher modulation and coding scheme (MCS) level in the two transport blocks. If the two transport blocks have the same modulation coding scheme level, the first transport block may be the first of the two transport blocks.

In the step of transmitting channel quality control information, the user equipment can bear the channel quality control information on the uplink data retransmitted by the hybrid automatic repeat request and transmit the uplink data including the channel quality control information.

The user equipment can calculate information about the uplink information using the following formula, ie

In another aspect of the invention, a method for supporting a hybrid automatic repeat request The method for receiving channel quality control information by using two transmission blocks in a wireless access system includes: causing a base station to transmit an entity downlink control channel signal including downlink control information to a user equipment, and using a physical uplink shared channel from the base station The device receives channel quality control information.

The number of coded symbols Q ' required to transmit channel quality control information can be calculated using the following formula, ie And the downlink control information may include information about the number of subcarriers of the first transmission block for transmitting channel quality control information. Information C ^{( x )} of the number of coding blocks associated with the first transmission block, and information on the size of the coding block , where x represents an indicator of one of the two transport blocks.

In another aspect of the invention, the first transport block may be a transport block having a higher modulation coding scheme level in the two transport blocks. If the two transport blocks have the same modulation coding scheme level, the first transport block may be the first of the two transport blocks.

The channel quality control information may be piggybacked on the retransmitted uplink data using the hybrid automatic repeat request to be received. Information on the linked data can be calculated by the following formula, ie

The above embodiments are part of a preferred embodiment of the invention. It will be apparent to those skilled in the art that various embodiments having the technical features of the present invention can be implemented in the detailed description of the invention set forth herein.

According to an exemplary embodiment of the present invention, the following advantageous effects can be obtained.

UCI can be efficiently encoded and transmitted in a multi-carrier environment (or CA environment).

Furthermore, for each TB, when two or more TBs are used to transmit UCI, the number of REs required to transmit CQI and/or PMI can be correctly calculated.

Furthermore, when the channel quality control information (CQI/PMI) is carried on the physical uplink shared channel, for each TB, the required transmission CQI/PMI can be accurately calculated. The number of REs. In particular, when the initial resource values of the two TBs are different from each other due to the retransmission of the hybrid automatic repeat request, the number of REs required to transmit the CQI/PMI by the physical uplink shared channel can be correctly calculated.

The foregoing summary, as well as the following detailed description of the invention

160, 165‧‧‧ channel encoder

161‧‧‧ rate matcher

162, 167‧‧‧ coder

163‧‧‧word-to-layer mapper

164‧‧‧Data/Control Information multiplexer

166‧‧‧ bit size controller

168‧‧‧Channel Interleaver

170‧‧‧Discrete Fourier Transform Precoder

171‧‧‧Multiple Input Multiple Output Precoder

201, 301‧‧‧ mix code module

2100, 2110‧‧‧ antenna

2120, 2130‧‧‧ processor

2140, 2150‧‧‧ transmission module

2160, 2170‧‧‧ receiving module

2180, 2190‧‧‧ memory

202, 302, 169‧‧ ‧ modulation mapper

203‧‧‧Conversion precoder

204, 305, 172‧‧‧ resource unit mapper

205, 173‧‧‧ single carrier frequency division multiplexing access signal generator

303‧‧‧Layer mapper

304‧‧‧Precoding module

306‧‧‧Orthogonal Frequency Division Multiple Access Signal Generator

401, 405‧‧‧ series to parallel converter

402‧‧‧N-point discrete Fourier transform module

403‧‧‧Subcarrier Mapper

404‧‧‧M-point discrete Fourier inverse conversion module

406‧‧‧Cycle preamble add-on module

S101~S108‧‧‧Steps

S610~S640‧‧‧Steps

S1300~S1390‧‧‧Steps

S1510~S1550‧‧‧Steps

S1910~S1940‧‧‧Steps

S2010~S2060‧‧‧Steps

The accompanying drawings, which are set forth in the claims In the drawings: FIG. 1 is a reference schematic diagram for describing a physical channel used in a 3GPP LTE system and a general signal transmission method using the physical channel; FIG. 2 is a diagram illustrating a configuration of a user equipment and a transmission uplink signal Signal processing program; FIG. 3 is a schematic diagram illustrating the configuration of the base station and the signal processing procedure for transmitting the downlink signal; FIG. 4 is a reference diagram for describing the configuration of the UE scheme, the SC-FDMA scheme, and the OFDMA scheme; A schematic diagram for describing a signal mapping method in the frequency domain to satisfy a single carrier characteristic in the frequency domain; FIG. 6 is a block diagram depicting a procedure for demodulating a transmission reference signal for a variable transmission signal according to SC-FDMA; Figure 7 shows the symbol position of the reference signal in the sub-frame structure according to SC-FDMA mapping; Figure 8 shows the signal processing procedure for mapping the DFT processing output sample to the single-carrier in the SC-FDMA of the cluster; Figure and Figure 10 show the signal processing procedure for mapping the DFT processed output samples to the multi-carrier in the SC-FDMA of the cluster; Figure 11 shows the signal processing procedure for the segmented SC-FDMA; Figure 12 DESCRIPTION chain structure may be used in embodiments of the present frame information in the invention; graph 13 described UL-SCH resources and the control information may be used in the present embodiment of the invention Processing procedure; Figure 14 is an illustration of an exemplary method for multiplexing UCI and UL-SCH data on a physical shared frequency channel; Figure 15 is a diagram illustrating multiplex control information and UL in a multiple input multiple output system - Flowchart of the procedure of the -SCH data; Figures 16 and 17 are diagrams illustrating an exemplary method for multiplexing multiple UL-SCH TBs and UCIs by user equipment in accordance with an embodiment of the present invention; Method for mapping physical resource units to transmit uplink data and UCI; FIG. 19 is a diagram for explaining a method for transmitting UCI according to an embodiment of the present invention; FIG. 20 is a diagram for explaining UCI for transmitting according to another embodiment of the present invention The method; and Fig. 21 is a view showing an apparatus for realizing the method described in Figs. 1 to 20.

Exemplary embodiments of the present invention provide a method and apparatus for transmitting and receiving UCI in a CA environment (or a multi-component carrier environment). Further, an exemplary embodiment of the present invention provides a method and apparatus for transmitting and receiving order indication information, and a method and apparatus for applying an error detection code to UCI.

The embodiments of the invention described below are a combination of the elements and features of the invention in a particular form. This element or feature may be considered selective unless otherwise mentioned. Each element or feature can be implemented without combining other elements or features. Further, embodiments of the invention may be constructed by combining some of the elements and/or features. The sequence of operations described in the embodiments of the present invention can be rearranged. Some structures or elements of any one embodiment may be included in another embodiment and may be replaced with corresponding structures or features of another embodiment.

Detailed descriptions of known procedures or steps of the present invention are avoided in the description of the drawings in order to avoid obscuring the subject matter of the present invention. Further, procedures or steps that can be understood by those skilled in the art will not be described.

In the embodiment of the present invention, the relationship between data transmission and reception between a base station (BS) and a user equipment (UE) is mainly described. BS refers to the terminal of the network A node that communicates directly with the user device. The specific operations performed by the BS described can be performed by the upper node of the BS.

That is, obviously, in a network composed of a plurality of network nodes including BSs, various operations performed for communication with user equipment can be performed by a BS or a network node that is not a BS. The term "BS" can be replaced with a fixed station, a Node B, an eNode B (eNB), an Advanced Base Station (ABS), an access point, and the like.

The term "user equipment" can be replaced by a mobile station (MS), a subscriber station (SS), a mobile subscriber station (MSS), and an advanced mobile station (Advance Mobile Station). AMS), mobile terminal and other words. Specifically, it should be noted that the words "eNB" and "eNode-B" may be used interchangeably in embodiments of the present invention, and the words "user equipment" and "terminal" may be alternated in embodiments of the present invention. Use.

A transmitter is a fixed and/or mobile node that provides data or voice services, and the receiver is a fixed and/or mobile node that receives data or voice services. Therefore, the MS can be used as a transmitter in the uplink and the BS can be used as a receiver. Similarly, the MS can be used as a receiver in the downlink and the BS can be used as a transmitter.

Embodiments of the present invention are standards disclosed by at least one of IEEE (Institute of Electrical and Electronics Engineers) 802.xx systems, 3GPP systems, 3GPP LTE systems, and 3GPP2 systems and other wireless access systems. Supported by the file. In particular, embodiments of the present invention are supported by 3GPP TS 36.211, 3GPP TS 36.212, 3GPP TS 36.213, and 3GPP TS 36.321 files. The steps or parts described in the embodiments of the present invention to clearly disclose the technical idea of the present invention can still be supported by the above documents. All words used in embodiments of the invention may be explained by standard documents.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will now be described in detail with reference to the accompanying drawings. The detailed description given below with reference to the accompanying drawings is intended to illustrate the exemplary embodiments of the invention Specific words used in the embodiments of the present invention are provided to assist in understanding the present invention. These specific words may be replaced with other words within the scope and spirit of the invention.

Embodiments of the present invention can be used in various wireless access technologies such as code division multiplexing Code Division Multiple Access (CDMA), Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA), Orthogonal Frequency Division Multiple Access (Orthogonal) Frequency Division Multiple Access (OFDMA), and Single Carrier Frequency Division Multiple Access (SC-FDMA).

CDMA can be implemented with radio frequency technologies such as Universal Terretrial Radio Access (UTRA) or CDMA 2000. TDMA can be combined with radio frequency technologies such as Global System for Mobile communications (GSM), General Packet Radio Service (GPRS) or Enhanced Date Rates for GSM Evolution (EDGE). Wait for it to be executed together. OFDMA can be combined with radio frequency technologies such as IEEE 802.11 (wireless fidelity, Wi-Fi), IEEE 802.16 (World Wide Interoperability for Microwave Access) (WiMAX), IEEE 802.20, and Evolved UTRA (Evolved) UTRA, E-UTRA, etc. are executed together.

UTRA is part of the Universal Mobile Telecommunication System (UMTS). 3GPP LTE is part of Evolved UMTS (E-UMTS) using E-UTRA. 3GPP LTE employs OFDMA in the downlink and SC-FDMA in the uplink. LTE-A is an evolved version of 3GPP LTE. The following embodiments of the present invention mainly describe embodiments of the technical features of the present invention as being applied to a 3GPP LTE/LTE-A system. However, this is merely exemplary and the invention is applicable to the IEEE 802.16e/m system.

1. 3GPP LTE/LTE-A system

In a wireless access system, a user equipment receives information from a BS by downlink and transmits information to the BS by uplink. The information transmitted and received between the user equipment and the BS includes general data information and control information. Various physical channels are provided in accordance with the type or use of information transmitted and received between the user device and the BS.

FIG. 1 is a reference diagram for describing a physical channel used in a 3GPP LTE system and a signal transmission method using the physical channel.

When the user device turns on the power or newly enters the cell, the user device performs an initial unit search operation including synchronization with the BS in S101. In order to achieve this operation, the user equipment receives the primary synchronization channel (P-SCH). And a secondary synchronization channel (S-SCH) to synchronize the BS and obtain information such as an identification (ID).

Then, the user equipment can obtain broadcast information in the unit by receiving a physical broadcast channel (PBCH) signal from the BS. The user equipment may receive a downlink reference signal (DL RS) in the initial unit search operation to check the downlink channel status.

When the initial unit search is completed, the user equipment controls the physical downlink control channel (PDCCH) and the physical downlink shared channel (PDSCH) according to the physical downlink control channel information to be at S102. Get more detailed system information.

Subsequently, the user device can perform a random access procedure in S103 to S106 to complete access to the BS. In order to implement the access, the user equipment transmits a preamble (S103) by means of a physical random access channel (PRACH) and controls the channel and the entity downlink control through the entity downlink. The PDSCH corresponding to the channel receives the response message of the preamble information (S104). In the case of using contention random access, the user equipment may perform transmission of an additional PRACH signal (S105) and a competition between the receiving entity downlink control channel signal and the PDSCH signal (S106) corresponding to the entity downlink control channel signal. Solution.

When the random access procedure is completed, the user equipment may perform a receiving entity downlink control channel signal and/or a PDSCH signal (S107) and transmit a physical uplink shared channel and/or a physical uplink control channel (physical uplink control channel, PUCCH) (S108) Universal up/down chain signal transmission procedure.

The control information transmitted from the user equipment to the BS is simply referred to as UCI. The UCI includes a hybrid automatic repeat request-acknowledgment character (ACK)/non-acknowledge character (NACK), scheduling request (SR), CQI, PMI, and rank information (rank). Information, RI), etc.

In an LTE system, UCI is typically transmitted periodically by PUCCH. However, when the control information and the traffic data need to be transmitted simultaneously, the UCI can be transmitted through the physical uplink shared channel. In addition, the UCI can be transmitted aperiodically over the entity's request/indication of the network by the physical uplink shared channel.

2 is a schematic diagram for describing a configuration of a user equipment and a signal processing program of the user equipment to transmit an uplink signal.

In order to transmit the uplink signal, the user equipment's code mixing module 201 can use the user equipment-specific code mixing signal to mix and match a transmitted signal. The coded signal is input to the modulation mapper 202 and uses Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK), or 16 quadrature amplitude modulation. /64 Quadrature Amplitude Modulation (QAM) is converted into a complex symbol. This complex symbol is processed by the conversion precoder 203 and applied to the resource unit mapper 204. The resource unit mapper 204 can map the complex symbols to time-frequency resource units. The signal processed in this manner can be transmitted to the BS via the SC-FDMA signal generator 205 via the antenna.

Fig. 3 is a reference diagram for describing a configuration of a BS and a signal processing procedure of a BS transmission downlink signal.

In a 3GPP LTE system, the BS can transmit one or more codewords by downlink. As in the winding shown in FIG. 2, each word code can be processed by the code mixing module 301 and the modulation mapper 302 to become a complex symbol. The complex symbol is mapped to a plurality of layers by a layer mapper 303, wherein each layer can be multiplied by a precoding matrix 304 assigned to each of the transmission antennas by a precoding matrix. The transmission signal of each antenna processed above is mapped to the time-frequency resource unit by the resource unit mapper 305. The mapped signal is affected by the OFDMA signal generator 306 and transmitted by each antenna.

In the radio frequency communication system, when the user equipment transmits signals on the uplink, the Peak-to-Average Ration (PAPR) becomes a problem compared with the case where the BS transmits signals in the downlink. Therefore, SC-FDMA is used for uplink signal transmission, as described above with reference to Figures 2 and 3, and OFDMA is used for downlink signal transmission.

Figure 4 is a configuration diagram for describing user equipment, SC-FDMA, and OFDMA.

A 3GPP system (eg, an LTE system) employs OFDMA in the downlink and SC-FDMA in the uplink. Referring to FIG. 4, the user equipment for uplink signal transmission and the BS for downlink signal transmission include: series to parallel converters 401, 405, subcarrier mapper 403, M-point discrete Fourier inverse transform (Inverse Discrete Fourier Transform, IDFT) Module 404, and a cyclic prefix (CP) add-on module 406.

The user equipment transmitting signals by SC-FDMA further includes an N-point Discrete Fourier Transform (DFT) module 402. The N-point DFT module 402 shifts the influence of the IDFT of the M-point IDFT module 404 on the transmission signal in such a manner that the transmission signal has a single carrier characteristic.

Figure 5 illustrates a signal mapping method that satisfies the single carrier characteristics in the frequency domain in the frequency domain.

Fig. 5(a) shows a partial mapping method, and Fig. 5(b) shows a distribution mapping method. The clustered SC-FDMA divides the DFT processed output samples into subgroups and discretely maps the subgroups to the frequency domain (or subcarrier domain) during the subcarrier mapping process, where the SC-FDMA of the cluster is SC- A modified version of FDMA.

Fig. 6 is a block diagram showing a procedure for demodulating a transmission reference signal (RS) of a variable transmission signal according to SC-FDMA.

The LTE standard (for example, 3GPP ninth edition) defines that an RS is generated in a frequency domain (S610) that does not suffer from DFT, and is mapped to a subcarrier (S620) to inverse fast Fourier Transform (IFFT). Processing (S630), subject to CP addition (S640), and then transmitting when the data is transmitted in such a manner that the signal generated in the time domain is converted into a frequency domain signal by DFT, mapped to a subcarrier, and processed by IFFT. And then transmit (refer to Figure 4).

Figure 7 shows the symbol positions that the RS maps in the subframe structure according to SC-FDMA.

Figure 7(a) shows the RS located in the fourth SC-FDMA symbol in each of the two time slots of a sub-frame in the case of a normal CP. Figure 7(b) shows the RS located in the third SC-FDMA symbol in each of the two time slots of a sub-frame in the case of an extended CP.

Figure 8 illustrates a signal processing procedure for mapping DFT processed output samples to a single carrier in clustered SC-FDMA, and Figures 9 and 10 illustrate mapping of DFT processed output samples to multi-carrier signals in clustered SC-FDMA Processing program.

Figure 8 shows an embodiment of SC-FDMA applying a carrier internal cluster, and Figure 9 and Figure 10 show an embodiment of SC-FDMA applying an inter-carrier cluster. Figure 9 shows A case where a signal is generated by a single IFFT block when subcarrier spacing between adjacent component carriers is uniform and component carriers are continuously allocated in the frequency domain. Figure 10 shows the case of signals generated by multiple IFFT blocks when component carriers are discontinuously allocated in the frequency domain.

Figure 11 illustrates the signal processing procedure for the segmented SC-FDMA.

Segmented SC-FDMA uses as many IFFTs as DFTs in order to have a one-to-one relationship between DFT and IFFT to extend the DFT distribution and the frequency subcarrier mapping of SC-FDMA IFFT, and can be abbreviated as NxSC- FDMA or NxDFT-s-OFDMA. The term "segmented SC-FDMA" is used in the specification. Referring to Fig. 11, the segmented SC-FDMA divides the time domain modulation symbols into N groups (N is an integer greater than 1), and performs DFT processing group by group to release the single carrier characteristic condition.

Figure 12 shows the structure of an uplink subframe that can be used in an embodiment of the present invention.

Referring to Fig. 12, the winding sub-frame includes a plurality of time slots (e.g., two time slots). The number of SC-FDMA symbols included in each time slot may depend on the length of the CP. For example, in the case of a normal CP, one time slot may include 7 SC-FDMA symbols.

The uplink subframe is segmented into a data area and a control area. A data area for transmitting and receiving signals shared by the physical uplink is used to transmit uplink data signals such as audio data. A control area for transmitting and receiving PUCCH signals is used to transmit UCI.

The PUCCH includes RB pairs (eg, m=0, 1, 2, 3) located at both ends of a data region (eg, a resource block (RB) pair located in the frequency domain mirroring portion) in the frequency domain and based on a time slot Was hopped. The UCI includes HARQ ACK/NACK, Channel Quality Indicator (CQI), Precoding Matrix Index (PMI), Sequence Indicator (RI) information, and the like.

Fig. 13 is a diagram showing the processing of the data of the uplink shared channel (UL-SCH) and the control information which can be used in the embodiment of the present invention.

Referring to FIG. 13, the data transmitted by the uplink (UL)-SCH is transmitted to the coding unit in the form of a transmission block at each transmission time interval (TTI).

The parity bits p ₀ , p ₁ , p ₂ , p ₃ , ..., p _{L -1} are added to the bits a ₀ , a ₁ , a ₂ , a ₃ , of the TB received from the higher layer. .., a _{A -1} . Here, the size of the TB is A, and the number of parity bits is 24 (L=24). In addition, input bits with an additional Cyclic Redundancy Check (CRC) can be expressed as b ₀ , b ₁ , b ₂ , b ₃ ,..., b _{B -1} , where B indicates the inclusion of a CRC The number of TB bits (S1300).

According to the TB size, the input bits b ₀ , b ₁ , b ₂ , b ₃ , . . . , b _{B -1 can be} divided into code blocks (CB), and the CRC is attached to each segment of the CB. To obtain the bits c _{r 0} , c _{r 1} , c _{r 2} , c _{r 3} ,..., . Here, r denotes the number of CBs (r = 0, ..., C-1), Kr denotes the number of bits of CB r , and C denotes the total number of CBs (S1310).

Channel coding is performed on c _{r 0} , c _{r 1} , c _{r 2} , c _{r 3} ,..., input to the channel coding unit, On, to produce , , , ,..., . Here, i(i=0,1,2) represents the index of the encoded data stream, and D _r represents the number of bits of the i-th encoded data stream of the encoding block r (ie, D _r = K _r +4) ), r represents the number of CBs, and C represents the total number of CBs. In an embodiment of the present invention, each CB may perform turbo coding using turbo coding (S1320).

When channel coding is completed, rate matching is performed to generate e _{r 0} , e _{r 1} , e _{r 2} , e _{r 3} ,..., . Here, r denotes the number of bit matching bits of the rth CB (r=0, 1, ..., C-1), and C denotes the total number of CBs (S1330).

After rate matching, CB cascade concatenation is performed to generate bits f ₀ , f ₁ , f ₂ , f ₃ , ..., f _{G -1} . Here, G represents the total number of encoded bits. When the control information is multiplexed and transmitted by the UL-SCH data, the bit used to transmit the control information is not included in the G. The bits f ₀ , f ₁ , f ₂ , f ₃ , ..., f _{G -1} correspond to the UL-SCH word code (S1340).

The CQI and/or PMI, the RI of the UCI, and the HARQ-ACK are all independently channel coded (S1350, S1360, and S1370). The channel coding of the UCI is based on the number of UCI-encoded symbols. For example, the number of encoded symbols can be used for rate matching of the encoded control information. The number of encoded symbols corresponds to the number of modulation symbols and the number of REs.

The CQI performs channel coding (S1350) by using an input bit sequence o ₀ , o ₁ , o ₂ , ..., o _{O -1} to generate an output bit sequence q ₀ , q ₁ , q ₂ , q ₃ ,..., . The channel coding scheme of the CQI depends on the number of bits of the CQI. When the CQI has 11 or more bits, an 8-bit CRC is added to the CQI. In the output bit sequence, Q _CQI represents the total number of encoded bits of the CQI. The encoded CQI may be rate matched such that the length of the bit sequence matches the Q _CQI . ,among them For the number of coded symbols of CQI, Q _m is the modulation sequence. Q _m and the CQI value equal to the UL-SCH data.

The RI uses an input bit sequence [ ]or[ ] Perform channel coding (S1360). Here, [ ]as well as[ ] represents 1-bit RI and 2-bit RI, respectively.

In the case of 1-bit RI, repeated coding is used. For a 2-bit RI, a (3, 2) single encoding is used for encoding and the encoded material can be repeated periodically. The RI having 3 to 11 bits is encoded using the (32, 0) RM code used in the uplink shared channel. The RI having 12 bits or more is divided into 2 groups by using a dual RM structure, and each group is encoded using (32, 0) RM coding. Obtaining an output bit sequence by RI blocks encoded by cascade connection , , ,..., . Here, Q _RI represents the total number of encoded bits of the RI. The encoded RI block of the final tandem connection may be part of the RI such that the length of the encoded _RI matches the Q _RI (ie, rate matching). ,among them For the number of coded symbols of RI, Q _m is the modulation sequence. The Q _{m of} the RI is the same as the UL-SCH data.

HARQ-ACK is a sequence of input bits used [ ], [ ]or[ ... ] Perform channel coding (S1370). [ ]with[ ] represents 1-bit HARQ-ACK and 2-bit HARQ-ACK, respectively. [ ... ] represents a HARQ-ACK composed of information greater than 2 bits (ie, O ^ACK > 2).

At this time, the ACK code is 1 and the NACK code is 0. A 1-bit HARQ-ACK is encoded using repetition coding. A (3, 2) single encoding is used to encode a 2-bit HARQ-ACK, and the encoded material can be periodically repeated. The HARQ-ACK having 3 to 11 bits is encoded using the (32, 0) RM code used in the uplink shared channel. The 12-bit or more HARQ-ACK is divided into 2 groups using a dual RM structure, and each group is encoded using (32, 0) RM coding. Q _ACK represents the total number of coded bits of the HARQ-ACK, and the bit sequence is obtained by the HARQ-ACK block encoded by the tandem connection . The encoded HARQ-ACK block of the final tandem connection may be part of a HARQ-ACK to match the length of the bit sequence with the Q _ACK (ie, rate matching). ,among them The number of coded symbols for HARQ-ACK, Q _m is the modulation sequence. UL-SCH data and the HARQ-ACK is the same as Q _m.

The encoded UL-SCH bits f ₀ , f ₁ , f ₂ , f ₃ ,..., f _{G -1} and the encoded CQI/PMI bits q ₀ , q ₁ , q ₂ , q ₃ ,... , are input to the data / control multiplex block (S1380). The data/control multiplex block outputs g ₀ , g ₁ , g ₂ , g ₃ ,..., g _{H' -1} . Here, g _i is a column vector having a length of Q _m ( i =0, . . . , H′ −1). g _i ( i =0,..., H' -1) represents a column vector having a length of ( Q _m . N _L ) . H = ( G + N _L . Q _CQI ) and H' = H / ( N _L . Q _m ). N _L denotes the number of UL-SCH hierarchical mapping the TB, H represents the total number of bits allocated to the UL-SCH is mapped to the TB N _L coding for UL-SCH data and CQI / PMI conveying layered. That is, H is the total number of bits allocated to the UL-SCH data and the CQI/PMI.

A channel interleaver channel interleaves the encoded bits input here. The input of the channel interleaver includes the output of the data/control multiplex block, g ₀ , g ₁ , g ₂ ,..., g _{H' -1} , the encoded RI , , ,..., And encoded HARQ-ACK , , ,..., (S1390).

In step S1390, g _i ( i =0, . . . , H′ −1) is a column vector having a length of Q _m of CQI/PMI, ( i =0,..., -1) a column vector that is the length of the Q _m of the ACK/NACK, and ( ) is a column vector with the length of Q _m of RI.

The channel interleaver multiplex control information and/or UL-SCH data is used for physical uplink shared channel transmission. Specifically, the channel interleaver maps control information and UL-SCH data to a channel interleaver matrix corresponding to a physical uplink shared channel resource.

When channel interleaving is completed, the bit sequence h ₀ , h ₁ , h ₂ ,..., Outputted column by column from the channel interleaver matrix. The output bit sequence h ₀ , h ₁ , h ₂ ,..., The map is mapped to the resource grid.

Figure 14 illustrates an exemplary method for multiplexing UCI and UL-SCH data on a physical shared frequency channel.

When the user equipment attempts to transmit control information in the designated subframe for physical uplink shared channel transmission, the user equipment multiplexes the UCI and UL-SCH data before transmitting the DFT. The UCI includes at least one of CQI/PMI, HARQ-ACK/NACK, and RI.

The number of REs used to transmit CQI/PMI, HARQ-ACK/NACK, and RI is based on a modulation and coding scheme (MCS) and an offset value allocated for physical uplink shared channel transmission. , ,as well as . The offset values allow for different encoding rates based on control information and are semi-statically set by higher layering (e.g., Radio Resource Control (RRC) layering) signals. The UL-SCH data and control information are not mapped to the same RE. As shown in Figure 14, the control information is mapped such that it is presented in the two time slots of the sub-frame. The BS can easily multiplex control information and data packets because it can detect in advance that control information is transmitted through the physical uplink shared channel.

Referring to FIG. 14, CQI and/or PMI resources are all located at the beginning of the UL-SCH data resource, and all SC-FDMA symbols are sequentially mapped on one subcarrier and then mapped to the next subcarrier. The CQI/PMI is mapped from the left side to the right side in the direction in which the subcarrier SC-FDMA symbol index is increased. Considering the number of CQI/PMI resources (ie, the number of coded symbols), the entity uplink shared channel data (UL-SCH data) is rate matched. The CQI/PMI uses the same modulation sequence as the UL-SCH data.

For example, when CQI/PMI has a small information size (payload size) (for example, less than 11 bits), (32, k) block coding is used for CQI/PMI, similar to PUCCH data transmission, and the encoded data can be Repeat periodically. For CQI/PMI with small message size, no CRC is used.

If the CQI/PMI has a large information size (eg, greater than 11 bits), an 8-bit CRC is added to the CQI/PMI and a tail-biting convolutional code is used to perform channel coding and rate matching. The ACK/NACK is inserted into a portion of the SC-FDMA resource of the UL-SCH data map by puncturing. The ACK/NACK is adjacent to the RS and fills the corresponding SC-FDMA symbol from bottom to top in the direction in which the subcarrier index is increased.

As shown in Fig. 14, in the case of a normal CP, the SC-FDMA symbols of the ACK/NACK correspond to the SC-FDMA symbols #2 and #4 in each time slot. Regardless of whether the ACK/NACK is actually transmitted in the subframe, the encoded RI is adjacent to the ACK/NACK symbols (ie, symbols #1 and #5). Here, ACK/NACK, RI, and CQI/PMI are all independently encoded.

Figure 15 is a flow chart showing the procedure for multiplexing control information and UL-SCH data in a multi-input multi-output (MIMO) system.

Referring to FIG. 15, the user equipment self-scheduling information identifies the sequence n_sch (data portion) for the UL-SCH and the PMI associated with the order for physical uplink shared channel transmission (S1510). The user equipment determines the order n_ctrl of the UCI (S1520). The order of the UCI may be set such that it is equal to the order of the UL-SCH (n_ctrl = n_sch). However, the invention is not limited thereto. This data and control channel is multiplexed (S1530). The channel interleaver performs the first time mapping and punctures the area around the demodulation RS (DM-RS) to reflect Shoot ACK/NACK/RI (S1540). Then, the data and control channels are modulated according to the modulation coding scheme table (S1550). The modulation scheme can include, for example, QPSK, 16QAM, and 64QAM. The modulated sequence/location can be changed (eg, before multiplexed data and control channels).

16 and 17 illustrate an exemplary method of multiplexing and transmitting a plurality of UL-SCH TBs and UCIs by a user equipment in accordance with an embodiment of the present invention.

However, for convenience, FIGS. 16 and 17 illustrate the case of transmitting two-word codes, and the methods shown in FIGS. 16 and 17 can be applied to the transmission of one or three or more words. This code and the TBs corresponding to each other are used alternately in the specification. Since the basic steps of the method are identical or similar to those described above with reference to Figures 13 and 14, a description of the portions related to MIMO will be given.

Assuming that the two-word code is transmitted in Figure 16, channel coding is performed on each of the words (160). Rate matching is performed according to a given modulation coding scheme level and resource size (161). The encoded bit may be a particular unit, a particular user device, or a coded specific code (162). Then, a mapping of the word pair to the layer is performed (163). The mapping of the code to the layer may include hierarchical displacement or permutation.

The word-to-layer mapping performed in the function block 163 can use the word-pair mapping method shown in FIG. The position of the precoding performed in Fig. 17 may be different from the position precoded in Fig. 13.

Referring again to Fig. 16, the control information such as CQI, RI, and ACK/NACK are channel coded in the channel coding block according to a predetermined specification (165). Here, for all words, CQI, RI, and ACK/NACK may be encoded using the same channel coding or may be encoded using a different channel coding for a particular word.

The number of encoded bits can be changed by the bit size controller 166. The bit size controller 166 can be unified with the channel coding block 165. The signal output from the bit size controller 166 is shuffled (167). The execution of the code may be unit-specific, layered-specific, code-specific or user device-specific.

The bit size controller 166 can operate as follows.

(1) The bit size controller identifies the rank n_rank_pusch of the data of the physical uplink shared channel of the entity.

(2) The order of the control channel n_rank_control is set to the order of the data Corresponding (i.e., n_rank_control = n_rank_pusch), and the number of bits of the control channel (n_bit_ctrl) can be expanded by multiplying it by the order of the control channel.

This can be performed lightly by duplicating the control channel to repeat the control channel. At this time, the control channel may be the information level before the channel coding or the encoded bit level after the channel coding. In the case of the control channel [a0, a1, a2, a3] having the data order of n_bit_ctrl=4 and n_rank_pusch=2, for example, the number of extensions of the bit of the control channel (n_ext_ctrl) may be 8 bits [a0, A1, a2, a3, a0, a1, a2, a3].

Alternatively, a circular buffering scheme can be applied such that the number of extended bits (n_ext_ctrl) becomes 8 bits.

When the bit size controller 166 is unified with the channel encoder 165, the encoded bits can be generated using channel coding and rate matching as defined in existing systems (e.g., LTE Eighth Edition).

In addition to the bit size controller 166, bit level interleaving can be performed to further randomize the layering. Similarly, interleaving can be performed at the modulation symbol level.

The CQI/PMI channel and control information (or control data) can be multiplexed by the data/control multiplexer 164 with respect to the two-word code. The channel interleaver 168 then maps the CQI/PMI according to the first time mapping scheme to map the ACK/NACK information to the REs around the uplink DM-RS of each of the two time slots in a subframe.

The modulation mapper 169 modulates each layer and the DFT precoder 170 performs DFT precoding. The MIMO precoder 171 performs MIMO precoding and the resource unit mapper 172 sequentially performs RE mapping. Then, the SC-FDMA signal generator 173 generates an SC-FDMA signal and transmits the generated signal through the antenna 埠.

The position of the above-mentioned functional block is not limited to the position shown in Fig. 16 and can be changed. For example, the code division block 162 and the code division block 167 may be after the channel interleave block 168, and the code pair layer map block 163 may be after the channel interleave block 168 or the modulation mapper 169.

2. Multi-carrier integrated environment

The communication environment contemplated in embodiments of the present invention includes a multi-carrier environment. The multi-carrier system or carrier integrated system used in the present invention is an integrated system using one or more component carriers (CCs) having a bandwidth narrower than the target bandwidth to support wideband.

In the present invention, multicarrier refers to carrier integration (carrier cascade connection). The carrier integration includes a tandem connection of non-contiguous carriers and a tandem connection of consecutive carriers. In addition, the carrier cascade connection can be used alternately with the words "carrier integration", "bandwidth cascade connection", and the like.

Multi-carrier (ie, carrier integration) consisting of two or more CCs is targeted to support up to 100 MHz in the LTE-A system. When one or more carriers having a bandwidth narrower than the target bandwidth are integrated, the bandwidth of the integrated carrier can be limited to the bandwidth used in existing systems to maintain communication with existing international mobile communications (International Mobile) Reverse compatibility of Telecommunications, IMT) systems.

For example, the 3GPP LTE system supports {1, 4, 3, 5, 10, 15, 20} MHz and the 3GPP LTE-Advanced System (LTE-A) supports bandwidth wider than 20 MHz by using bandwidth supported by LTE. . The multi-carrier system used in the present invention can define a new bandwidth without considering the bandwidth used in existing systems to support carrier integration.

The LTE-A system uses the concept of a unit to manage radio frequency resources. This unit is defined as a combination of a downlink resource and an uplink resource. This uplink resource is not an essential element, so the unit can be composed only of the downlink resources. If multi-carrier (ie, carrier integration) is supported, the connection between the carrier frequency (or DL CC) of the downlink resource and the carrier frequency (or UL CC) of the uplink resource can be displayed by system information (SIB). .

The units used in the LTE-A system include primary (P) units (P units) and secondary (S) units (S units). The P unit may be a unit operating on a primary frequency (eg, primary CC (PCC)), and the S unit may be a unit operating on a secondary frequency (eg, secondary CC (SCC)) . For a particular user device, only one P unit and one or more S units can be assigned.

The P unit is used by the user equipment to perform an initial connection establishment procedure or a connection re-establishment procedure. The P unit can be a unit specified during the handover procedure. The S unit can be configured after establishing an RRC connection and used to provide additional radio resources.

The P unit and the S unit can be used as a service unit. For a user equipment that does not have carrier integration, although the user equipment is in an RRC connected state or the user equipment does not support carrier integration, there is only one service unit configured with only P units. In case the user equipment is in the carrier integration system set in the RRC connected state, one or more service units may exist, and the service unit includes a P unit and one or more S units.

When the initial secure boot procedure is initiated, the E-UTRAN can establish a network containing one or more S-units other than the P-units initially configured in the setup connection procedure. In a multi-carrier environment, the P and S units can operate as component carriers. That is, carrier integration can be understood as a combination of a P unit and one or more S units. In the following embodiments, the PCC corresponds to a P unit, and the SCC corresponds to an S unit.

3. Winding control information transmission method

Embodiments of the present invention relate to a method for channel coding UCI, a method for allocating resources to UCI, and a method for transmitting UCI when UCI is piggybacked on data on a physical shared channel in a CA environment method. Embodiments of the present invention can be applied to single user (SU)-MIMO, and in particular to a single antenna transmission environment as a specific case of SU-MIMO.

3.1 UCI allocation location on the physical shared channel

Figure 18 illustrates an exemplary method for mapping physical resource units to transmit uplink data and UCI.

Figure 18 shows the UCI transmission method in the case of 2 words and 4 layers. Referring to Fig. 18, the CQI is combined with the data and mapped to the RE of the RE that is not the RI map by using the first time mapping scheme of the same modulation sequence as the data and all cluster points. In SU-MIMO, the CQI is transmitted in a word to be transmitted. For example, the CQI is transmitted in a word having a higher modulation coding scheme level in the two-word code, and is transmitted in the word code 0 when the two-word code has the same modulation coding scheme level.

An ACK/NACK is placed when the combination of the CQI and the data is punctured, which has been mapped to symbols located on both sides of the reference signal. Since the reference signal is located at the third and tenth symbols, the ACK/NACK is mapped from the lowest subcarrier of the second, fourth, ninth and eleventh symbols to the top. Here, the ACK/NACK is mapped in a sequence of the second, eleventh, ninth, and fourth symbols.

The RI maps to a symbol located adjacent to the ACK/NACK. The RI is the first one to be mapped among all information items (data, CQI, ACK/NACK, RI) transmitted on the physical uplink shared channel. Specifically, the RI is mapped to the top from the lowest subcarriers of the first, fifth, eighth, and twelfth symbols. Here, the RI is a sequence map of the first, twelfth, eighth, and fifth symbols.

In particular, when the information bit is 1 bit or 2 bits, the ACK/NACK And RI can use only four angular maps of the cluster by QPSK; when its information bits are 3 bits or more, it can be mapped by using the same modulation sequence as the data and all cluster points. In addition, the ACK/NACK and RI use the same resources to transmit the same information at the same location in all layers.

3.2 Calculation of the number of coded modulation symbols used for HARQ-ACK bits or RI-1

In an embodiment of the invention, the number of modulation symbols may correspond to the number of encoded symbols or the number of REs.

The control information or control data is input to the channel coding block in the form of channel quality control information (CQI and/or PMI), HQRQ/ACK, and RI (for example, S1350, S1360, and S1370 in Fig. 13 or 165 in Fig. 16). . Different numbers of coded symbols are assigned to control the transmission of information, so the coding rate depends on the control information. When the control information is transmitted in the physical uplink shared channel, the channel information information (CSI) HARQ-ACK, RI, and CQI (or PMI) control information bits o0, o1, o2, ..., oo -1 are all independently coded by channels.

When the user equipment transmits ACK/NACK (or RI) information bits by the physical uplink shared channel, the number of REs for each layer of ACK/NACK (or RI) can be calculated using Equation 1.

In Equation 1, the number of REs for ACK/NACK (or RI) can be expressed as the number Q' of coded modulation symbols. Here, O represents the number of bits of ACK/NACK (or RI), with It is determined by the number of transmitted words according to the TB. A parameter for considering the difference between the signal to noise ratio (SNR) between the data and the UCI to set the offset value is determined as = with = .

For TB, Indicates the scheduling bandwidth used for the physical uplink shared channel transmission as the number of subcarriers in the current subframe. For the same TB, Represents the number of SC-FDMA symbols in each subframe used for initial physical uplink shared channel transmission, and Represents the number of subcarriers in each subframe used for initial physical uplink shared channel transmission. Can be calculated using Equation 2 .

Here, when the user equipment transmits the physical uplink shared channel and the Sounding Reference Signal (SRS) in the same subframe for the initial transmission or when the entity allocated to the initial transmission shares the channel resource The N _SRS can be set to 1 even when partially overlapping the sub-frame and frequency bandwidth of the SRS of a particular unit, otherwise set to zero.

The number of subcarriers of the TB at the time of initial transmission , TB coded blocks obtained from the total number of C, and the size of each encoded block ( x = {0, 1}) can be obtained from the initial physical downlink control channel of the same TB.

When the initial entity downlink control channel (DCI format 0 or 4) does not include the above values, these values can be determined by other methods. For example, when the initial physical uplink shared channel of the same TB is semi-persistent scheduling, , C and ( x = {0, 1}) can be determined from the nearest semi-statically scheduled entity downlink control channel. Otherwise, when the physical uplink shared channel is initialized according to the random access response grant, these values can be determined from the random access response grant for the same TB.

As described above, when the number of REs for ACK/NACK (or RI) has been obtained, since the modulation scheme is performed after channel coding of ACK/NACK (or RI), the number of bits can be calculated. The total number of coded bits of the ACK/NACK is Q _ACK = Q _m . Q' , the total number of coded bits of the RI is Q _RI = Q _m . Q' . Here, Q _m is the number of bits per symbol according to the modulation sequence and is 2 in the case of QPSK, 4 in the case of 16QAM, and 6 in the case of 64QAM.

When the SNR or spectral efficiency is high, the minimum value of the REs allocated to the ACK/NACK and the RI can be determined to prevent the rate matching from acting as a puncture, so that the minimum length of the code encoded by the RM code is zero. At this time, the minimum value of the RE may depend on the information bit size of the ACK/NACK or RI.

3.3 Calculation of the number of coded modulation symbols for CQI and/or PMI-1 When the user equipment transmits CQI and/or PMI over the physical uplink shared channel In the case of (CQI/PMI) bits, the number of REs used for CQI/PMI in each layer can be calculated by Equation 3.

In Equation 3, for channel quality information, the number of REs for CQI and/or PMI (CQI/PMI) can be expressed as the number Q' of modulated coded symbols. However, the following description will focus primarily on CQI, and the present invention can be applied to the PMI in the same manner.

In Equation 3, O denotes the number of bits of the CQI/PMI, and L denotes the number of bits of the CRC appended to the CQI bit. Here, L is 0 when O is 11 bits or less and 11 bits; otherwise, it is 8. which is,

For the corresponding physical uplink shared channel, determined by the number of transport words And the parameter used to consider the difference in SNR between the data and the UCI to determine the offset value is determined as = .

For TB, Indicates the scheduled bandwidth of the number of subcarriers used for physical uplink shared channel transmission in the current subframe. Indicates the number of SC-FDMA symbols in the subframe of the shared channel on the current transport entity and can be calculated by Equation 2 mentioned above.

For the same TB, Representing the number of SC-FDMA symbols in the transmission frame of each initial entity uplink shared channel, Indicates the number of subcarriers in the corresponding subframe. for In terms of x, the indicator of the TB with the highest modulation coding scheme specified by the uplink grant is indicated.

For the same TB, , C and It can be obtained from the initial physical downlink control channel. only , C and When not included in the initial entity downlink control channel (DCI format 0), the user device can determine these values using other methods.

For example, when the initial physical uplink shared channel for the same TB is semi-persistent scheduling, , C and It can be determined from the nearest semi-statically scheduled entity downlink control channel. Otherwise, for the same TB, when the physical uplink shared channel is initialized according to the random access response authorization, , C and It can be determined from the random access response authorization.

The UL-SCH data information (G) bit can be calculated by Equation 4.

As described above, when the number of REs for CQI has been obtained, after the channel coding of the CQI, the number of bits can be calculated in conjunction with the modulation scheme. Q _{CQI is} the total number of coded bits of the CQI and Q _CQI = Q _m . Q' . Here, Q _m is the number of bits per symbol according to the modulation sequence and is 2 in the case of QPSK, 4 in the case of 16QAM, and 6 in the case of 64QAM. If RI is not transmitted, Q _RI =0.

3.4 Calculation of the number of coded modulation symbols used for HARQ-ACK bits or RI-2

A description will be given below of a method for calculating the number of REs for ACK/NACK and RI, which is different from the method described in Section 3.1.

When the user equipment transmits HARQ-ACK bits or RI bits in a single unit, for HARQ-ACK or RI, the user equipment needs to determine the number Q' of coded modulation symbols in each layer. Equation 5 below is used to calculate the number of modulation symbols when only one TB is transmitted in the UL unit.

In Equation 5, the number of REs for ACK/NACK (or RI) can be expressed as the number Q' of coded modulation symbols. Here, O represents the number of bits of ACK/NACK (or RI).

as well as Both are determined by the number of transmitted words according to TB. A parameter for considering the SNR difference between the data and the UCI to set the offset value is determined as = as well as = .

For TB, Indicates the scheduling bandwidth as the number of subcarriers used for physical uplink shared channel transmission in the current subframe. Representing the number of SC-FDMA symbols in the uplink shared channel transmission subframe for each of the same TBs, and Represents the number of subcarriers in each subframe used for initial physical uplink shared channel transmission. It can be calculated by Equation 2.

Number of subcarriers for TB for initial transmission , TB coded blocks obtained from the total number of C, and the size of each encoded block ( x = {0, 1}) can be obtained from the initial physical downlink control channel of the same TB.

When the initial entity downlink control channel (DCI format 0 or 4) does not contain the above values, these values can be determined by other methods. For example, when the initial physical uplink shared channel for the same TB is semi-persistent scheduling, , C and ( x = {0, 1}) can be determined from the nearest semi-statically scheduled entity downlink control channel. Otherwise, when the physical uplink shared channel is initialized according to the random access response grant, these values may be determined from the random access response grant for the same TB.

When the user equipment transmits two TBs in the UL unit, the user equipment needs to determine the number Q' of coded modulation symbols in each layer for HARQ-ACK or RI. Equations 6 and 7 below are used to calculate the number of modulation symbols when two TBs have different initial transmission resource values in the UL unit.

In Equations 6 and 7, the number of REs for ACK/NACK (or RI) can be represented by the number Q' of coded modulation symbols. Here, O represents the number of bits of ACK/NACK (or RI). If O 2 ;otherwise as well as . ( x ={1,2}) represents the modulation sequence of TB'x', ( x = {1, 2}) represents the scheduling bandwidth expressed as the number of subcarriers used for physical uplink shared channel transmission in the initial subframe of the first and second TBs.

( x = {1, 2}) indicates the number of SC-FDMA symbols in each subframe of the initial physical uplink shared channel transmission of the first and second TBs and can be calculated by Equation 8.

In Equation 8, when the user equipment transmits the physical uplink shared channel and the SRS in the same subframe of the initial transmission of the TB'x' or when the initial transmission of the entity assigned to the TB'x' is shared by the uplink When the channel resource partially overlaps the sub-frame and bandwidth of the SRS of a specific unit, ( x ={1,2}) is 1; otherwise ( x ={1,2}) is 0.

In an embodiment of the present invention, the user equipment can obtain the initial physical downlink control channel of the corresponding TB. ( x ={1,2}), C and ( x ={1,2}). When these values are not included in the initial entity downlink control channel (DCI format 0 or 4), the user device can determine these values using other methods. For example, when the initial physical uplink shared channel for the same TB is semi-persistent scheduling, ( x ={1,2}), C and ( x ={1,2}) can be determined from the nearest semi-statically scheduled entity downlink control channel. Otherwise, when the physical uplink shared channel is initialized according to the random access response authorization, ( x ={1,2}), C and ( x = {1, 2}) can be determined from the random access response grant of the same TB.

In Equations 6 and 7, as well as Both are determined by the number of transmitted words according to TB. A parameter for considering the SNR difference between the data and the UCI to set the offset value is determined as = as well as = .

3.5 Calculation of the number of coded modulation symbols for CQI and / or PMI-2

When the user equipment transmits CQI and/or PMI (CQI/PMI) bits over the physical uplink shared channel, the user equipment needs to calculate the number of REs of the CQI/PMI in each layer. However, the following description will focus primarily on CQI, and the present invention can be applied to PMI in the same manner.

Figure 19 illustrates a method for transmitting UCI in accordance with an embodiment of the present invention.

Referring to FIG. 19, the base station may transmit an initial physical downlink control channel signal including DCI format 0 or DCI format 4 to the user equipment (S1910).

For one of the two transport blocks, the initial physical downlink control channel signal may include information about the number of subcarriers Information about the number of coded blocks C ^{( x )} , and information about the size of the coded block .

In step S1910, if , C ^{( x )} , and Not included in the initial entity downlink control channel signal (DCI format 0/4), the user equipment can determine these values using another method.

For example, when the initial physical uplink shared channel for the same TB is semi-persistent scheduling, , C ^{( x )} and It can be determined from the nearest semi-statically scheduled entity downlink control channel. Otherwise, for the same TB, when the physical uplink shared channel is initialized according to the random access response authorization, , C ^{( x )} and It can be determined from the random access response authorization.

Referring again to Fig. 19, the user equipment can calculate the RE for transmitting UCI using the information received in step S1910. In particular, the user equipment can calculate the number of REs required to transmit CQI/PMI from the UCI (S1920).

In an embodiment of the invention, the CQI/PMI is deployed or multiplexed and transmitted in all layers belonging to the TB with the largest modulation coding scheme. If two TBs have the same modulation coding scheme level, the CQI is transmitted in the first of the two TBs.

However, since the two TBs may have different initial RB sizes due to retransmission, the number Q of REs may be calculated by Equation 9 for the CQI transmitted by the physical uplink shared channel in step S1920.

Equation 9 is similar to Equation 3. However, when retransmitting UL data and/or UCI, Equation 3 cannot be used if the TB transmitting the retransmission packet has a different initial RB size. That is, Equation 9 can be used when one or more TB transport entities are used to share a channel in a multi-carrier integrated environment.

In Equation 9, O represents the number of bits of the CQI, and L represents the number of bits of the CRC appended to the CQI bit. Here, when O is 11 bits or less, 11 is L ; otherwise, it is 8. which is,

Here, The parameter determined by the number of transport words according to the TB and used to consider the SNR difference between the data and the UCI to determine the offset value is determined as = .

Representing the number of subcarriers corresponding to the subframe, C ^{( x )} representing the total number of coded blocks generated from each TB, and Indicates the size of the coded block according to the index r. due to , x represents the transport block metric corresponding to the highest modulation coding scheme value (IMCS) specified by the initial uplink grant.

At this time, the user equipment may obtain information about the initial entity downlink control channel in step S1910. , C ^{( x )} , and Information.

For the same TB, Indicates the number of SC-FDMA symbols in the transmission shared channel frame of each initial entity. Here, The number of SC-FDMA symbols in each subframe transmitted for the initial physical uplink of the first and second TBs.

In addition, the user equipment can be calculated using Equation 10. .

In Equation 10, when the user equipment transmits the physical uplink shared channel and the SRS in the same subframe of the initial transmission of TB'x' or when the initial transmission of the TB'x' is assigned to the physical uplink shared channel When the resource and unit-specific SRS sub-frames and frequency bandwidth partially overlap, Can be set to 1; otherwise set to 0.

Referring again to Equation 9, Indicates the scheduling bandwidth used for the physical uplink shared channel transmission in the current subframe of the TB, where TB is the number of subcarriers. Indicates the number of SC-FDMA symbols in the current subframe of the shared channel on the transport entity.

In Equation 9, 'x' denotes a TB corresponding to the Maximum Modulation Coding Scheme Level (IMCS) specified by the initial UL grant. If two TBs have the same modulation coding scheme level in the initial UL grant, x can be set to 1, which represents the first of the TBs.

Referring again to Fig. 19, the user equipment can use the number of REs calculated in step S1920 to generate UCI (CSI) including CQI. Here, the UCI that is not the CQI can be calculated using Equations 1 and 2 and Equations 5 to 8 (S1930).

The user equipment can calculate the information (G) of the uplink data (UL-SCH) transmitted by the physical uplink shared channel. That is, the user equipment can calculate information about the uplink data transmitted together with the UCI calculated in step S1930. Then, the user equipment can transmit an entity uplink shared channel including UCI and UL data to the eNB (S1940).

In step S1940, the bit of the UL-SCH data information (G) can be calculated by Equation 11.

When the user equipment has calculated the number of REs of the CQI (refer to Equation 9), since the CQI performs a modulation scheme after CQI channel coding, the user equipment can obtain the number of bits. In Equation 11, Represents the number of layers corresponding to the xth UL-SCH TB, and Q _CQI represents the total number of coded bits of the CQI. . Here, It is the number of bits per symbol according to the modulation sequence in each TB, and is 2 in the case of QPSK, 4 in the case of 16QAM, and 6 in the case of 64QAM. Since the uplink resource of the RI is preferentially allocated, the number or RE assigned to the RI excludes the uplink data information (G) bit. If the RI is not transmitted, then .

In FIG. 19, the number of REs allocated to the CQI is obtained according to the initial transmission use parameter of the TB (or CW) transmitting the CQI, and by the resource from the current subframe. . Subtract the number of bits of the RI defined in the TB (or CW) that transmitted the CQI Divided by the TB (or CW) modulation sequence that transmits the CQI The resulting value is used to obtain the maximum value of the assigned RE (refer to Equation 9).

Figure 20 illustrates a method for transmitting UCI according to another embodiment of the present invention. law.

Referring to FIG. 20, the eNB transmits an entity downlink control channel signal to the user equipment to allocate a downlink resource and an uplink resource (S2010).

The user equipment transmits uplink information and/or UCI to the eNB over the physical uplink shared channel in response to the control information contained in the physical downlink control channel signal (S2020).

When an error occurs in the physical uplink shared channel transmitted from the user equipment to the eNB in step S2020, the eNB transmits a NACK signal to the user equipment (S2030).

When the user equipment retransmits the uplink data when receiving the NACK signal, the user equipment can calculate the resources for transmitting the uplink data and the UCI from the radio frequency resources allocated thereto. Therefore, the user equipment can calculate the number of REs required to transmit the UCI (S2040).

In step S2040, the CQI is transmitted in all layers belonging to the TB having the high modulation coding scheme level to be transmitted. Here, the two TBs have the same modulation coding scheme level, and the CQI is preferably transmitted in the first TB. However, since it is necessary to transmit the physical uplink shared channel signal in step S2040, the TBs may have different initial RB sizes. Therefore, the user equipment preferably calculates the number of REs required to transmit the CQI by the method according to Equation 9.

when , C ^{( x )} and When the entity downlink control channel signal is included in step S2010, the user equipment can calculate the number of REs transmitting the CQI using the corresponding information in step S2040. If the user equipment receives the inclusion after step S2030 , C ^{( x )} and The entity downlink control channel, the user equipment can use these values to calculate the number of REs transmitting the CQI.

Referring again to FIG. 20, the user equipment can generate the UCI using the number of REs transmitting the CQI obtained in step S2040. Here, the user equipment can calculate the number of REs transmitting HARQ-ACK and/or RI using these methods according to Equations 6 and 7 and generate UCI using the number of REs (S2050).

In addition, the user equipment can calculate the UL-SCH data G of the uplink data to be retransmitted using Equation 10. Therefore, the user equipment can multiplex UCI and uplink data or piggyback UCI on the uplink data to retransmit the uplink data to the eNB (S2060).

3.6 channel coding

The frequency of the number of REs based on UCI calculated using the above method will be given below. A description of the method of encoding UCI.

When the information bit of the ACK/NACK is 1 bit, the input sequence can be expressed as [ ], and channel coding can be performed according to the modulation sequence shown in Table 1. Q _m is the number of bits per symbol according to the modulation sequence and corresponds to 2, 4, and 6 when QPSK, 16QAM, and 64QAM are used, respectively.

When the information bit of the ACK/NACK is 2 bits, the input sequence can be expressed as [ ], and channel coding can be performed according to the modulation sequence shown in Table 2. Here, Is the ACK/NACK bit of word 0, Is the ACK/NACK bit of word 1 and =( + ) mod 2. In Tables 1 and 2, x and y represent the place-holders used to mix ACK/NACK information to maximize the Euclidean of the modulation symbol for transmitting ACK/NACK information. )distance.

In ACK/NACK multiplex in Frequency Division Duplex (FDD) or Time Division Duplex (TDD), if ACK/NACK is 1-bit or 2-bit, according to multi-coded ACK/ Cascade connection of NACK block generates bit sequence , , ,..., . In the case where the ACK/NACK is included in the TDD, the bit sequence may also be generated according to the cascade connection of the multi-coded ACK/NACK block. , , ,..., . Here, Q _ACK is the total number of coded bits of all coded ACK/NACK blocks. The final cascode method of encoding the ACK/NACK block can be made in such a way that the total bit sequence length is equivalent to Q _ACK .

The mixing code sequence can be selected from Table 3 [ ], and the index i for selecting the code sequence can be calculated by Equation 12.

[Equation 12] i = ( N _bundled -1) mod 4

Table 3 is a remix sequence selection table for TDD ACK/NACK bundling.

In the case of 1-bit ACK/NACK, a bit sequence can be generated by setting m to 1. , , ,..., In the case of 2-bit ACK/NACK, a bit sequence can be generated by setting m to 3. , , ,..., . Here, Table 4 shows the generation of a bit sequence , , ,..., Algorithm.

When ACK/NACK is 2 bits or more (ie, [ ... ] and O ^ACK >2), the bit sequence can be calculated by Equation 13 , , ,..., .

In Equation 13, i = 0, 1, 2, ..., QACK-1 and the basic sequence Mi, n can refer to Table 5.2.2.2.6-1 of the 3GPP TS 36.212 standard document. The vector sequence output of the channel coding performed on the HARQ-ACK information can be defined as , ,..., . Here, .

Table 5 illustrates the generation of a bit sequence , ,..., Algorithm.

When RI is 1 bit, the input sequence can be expressed as [ ], and channel coding can be performed according to the modulation sequence shown in Table 6.

Q _m is the number of bits according to the modulation sequence, and corresponds to 2, 4, and 6 when QPSK, 16QAM, and 64QAM are used, respectively. Table 7 illustrates [ The mapping relationship between RI and RI.

When RI is 2 bits, the input sequence can be expressed as [ ], and channel coding can be performed according to the modulation sequence shown in Table 8. Here, The most significant bit (MSB) of the 2-bit input, The least significant bit (LSB) input for 2 bits, and =( + ) mod2.

Table 9 shows [ An exemplary mapping relationship with RI.

In Tables 6 and 8, x and y represent the placeholder symbols used to encode the RI to maximize the Euclidean distance of the modulated symbols of the transmitted RI.

Generating a bit sequence according to the cascade connection of multiple coded RI blocks , , ,..., . Here, Q _RI is the total number of coded bits of all coded RI blocks. The last cascade connection of the coded RI block can be made in such a way that the total bit sequence length is equivalent to Q _RI .

The vector output sequence of the channel coding performed on the RI is defined as , ,..., . Here, it can be obtained according to the algorithm shown in Table 10. And the vector output sequence.

If RI (or ACK/NACK) is 3 to 11 bits, RM encoding is applied to produce a 32-bit output sequence. The RM encoded RI (or ACK/NACK) block b ₀ , b ₁ , b ₂ , b ₃ , ..., b _{B -1} is calculated by Equation 14. In Equation 14, i = 0, 1, 2, ..., B-1 and B = 32.

In Equation 14, i = 0, 1, 2, ..., QRI-1 and the basic sequence Mi, n can refer to Table 5.2.2.2.6-1 of the 3GPP TS 36.212 standard document.

4. Apparatus for implementing the above method

Fig. 21 shows an apparatus for realizing the above-described method described with reference to Figs. 1 to 20.

The user equipment can be used as a transmitter in the winding and can be received in the lower chain. Device. The eNB can act as a receiver in the uplink and as a transmitter in the downlink.

The user equipment and the eNB may include transmission modules (Tx modules) 2140 and 2150 and receiving modules (Rx modules) 2160 and 2170 to control data and/or information and transmission and reception of the antennas 2100 and 2110, respectively. Transmit and receive information, data and/or messages.

Furthermore, the user equipment and the eNB may respectively include processors 2120 and 2130 and memory 2180 and 2190 for performing the above-described embodiments of the present invention to temporarily or continuously store the processing program of the processor.

Embodiments of the present invention may be performed using the above-described elements and functions of the user equipment and the eNB. The apparatus shown in Fig. 21 may further include the components shown in Figs. 2, 3, and 4. Processors 2120 and 2130 preferably include the components shown in Figures 2, 3, and 4.

The processor 2120 of the user device can supervise a search space to receive the entity downlink control channel signals. Specifically, the LTE-A user equipment can receive the physical downlink by performing blind decoding on the extended CSS without blocking the entity downlink control channel signal transmitted to other LTE user equipments. Control channel signal.

The processor 2120 of the user equipment can transmit the UCI and the physical uplink shared channel signal to the eNB. Specifically, the processor 2120 of the user equipment may calculate the number of REs for transmitting HARQ-ACK, CQI, and RI according to Equations 1 to 10 using the above method, and generate UCI using the number of calculated REs, UCI It is carried by the uplink data UL-SCH and transmits the uplink data having the UCI.

The transmission modules 2140 and 2150 and the receiving modules 2160 and 2170 included in the user equipment and the eNB may have a packet modulation and demodulation function, a fast packet channel coding function, an OFDMA packet scheduling function, a TDD packet scheduling function, and/or Channel multiplex function. In addition, the user equipment and the eNB may further include a low power radio frequency (RF) or an intermediate frequency (IF) module.

In an embodiment of the present invention, a personal digital assistant (PDA), a mobile phone, a personal communication service (PCS) phone, a global system for mobile (GSM) phone, Wideband-CDMA (WCDMA) telephone, mobile broadband system (MBS) telephone, portable computer, notebook computer, smart phone, multi-mode multi-band (MM-MB) Terminal or user device class Similar equipment.

Here, the smart phone is a terminal that has the advantages of both the mobile communication terminal and the PDA. The smart phone can be a mobile communication terminal having a scheduling and data communication function including facsimile transmission/reception of a PDA, network access, and the like. The MM-MB terminal is a terminal including a multi-data machine chip that can operate in a portable network system and a mobile communication system (for example, a CDMA 2000 system, a WCDMA system, etc.).

Exemplary embodiments of the present invention can be implemented by various methods, such as hardware, firmware, software, or a combination thereof.

In a hardware configuration, an exemplary embodiment of the present invention may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), and digital signal processing devices ( Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), Processors, Controllers, Microcontrollers, Microprocessors, etc. .

In a firmware or software configuration, an exemplary embodiment of the present invention can be implemented by a module, a program, a function, or the like that performs the above-described functions or operations. The software code can be stored in the memory unit and executed by the processor. The memory unit can be internal or external to the processor and can transfer data to and receive data from the processor via various well known methods.

It will be appreciated that various modifications and changes can be made to the present invention without departing from the spirit and scope of the invention. Therefore, it is to be understood that the invention is intended to cover the modifications and

Embodiments of the invention are applicable to a variety of wireless access systems. The wireless access system includes 3GPP, 3GPP2 and/or IEEE 802.xx (Institute of Electrical and Electronics Engineers 802) systems and the like. Embodiments of the present invention can be applied to the technical field of using various wireless access systems other than wireless access systems.

S2010‧‧‧Steps

S2020‧‧‧ steps

S2030‧‧‧Steps

S2040‧‧‧Steps

S2050‧‧‧Steps

S2060‧‧‧Steps

Claims (10)

A method for transmitting channel quality control information in a wireless access system by a physical uplink shared channel, the wireless access system supporting a hybrid automatic repeat request, the method being performed by a user equipment and the method comprising Receiving an entity downlink control channel signal including an initial uplink authorization; transmitting two uplink data blocks according to the initial uplink authorization; receiving one for one of the two transmission blocks Non-approved information; and transmitting, by the physical uplink shared channel of the hybrid automatic repeat request, a channel quality control information along with one of the two transport blocks and a new transport block, One of the two transmission blocks is retransmitted according to the non-recognized information, wherein the number Q of coding symbols required to transmit the channel quality control information is calculated according to the initial uplink authorization, wherein The initial uplink authorization includes: information about the number of multiple subcarriers of a transmission block used to transmit the channel quality control information Information C ^{( x )} of the number of the plurality of coding blocks associated with the transmission block for transmitting the channel quality control information; and information on the size of the coding blocks And wherein "x" represents an indicator of the transport block for transmitting the channel quality control information. The method according to claim 1, wherein the number Q of the coded symbols is calculated using the following formula, ie among them, The number of single-carrier frequency division multiplexing access symbols representing the frequency shared channel of each initial entity, the number of one-bit elements of the channel quality control information represented by O , and L represents the cyclic redundancy attached to the channel quality indicator bit One digit of the check, as well as Determined by a quantity of a transmission block for a shared entity uplink shared channel and a parameter for determining an offset value by considering a difference in signal-to-noise ratio between the data and the uplink channel information, a scheduling bandwidth indicating the number of subcarriers used for the physical uplink shared channel transmission in the current subframe. Indicates the number of symbols in the current subframe. Is the number of one-bit elements of each symbol according to the modulation sequence in each of the transmission blocks, and Represents the number of bits that are defined in one of the transfer blocks in each of the transfer blocks. The method of claim 2, further comprising: calculating information about the uplink data retransmitted by the one of the two transport blocks, wherein the information about the uplink data is Calculated by the following formula, ie Represents a number of layers corresponding to each of the transport blocks, and Q _CQI represents a total number of coded bits of the channel quality control information. A user equipment for transmitting channel quality control information in a wireless access system by a physical uplink shared channel, the wireless access system supporting a hybrid automatic repeat request, the user equipment comprising: a receiver; a transmission And a processor for transmitting the channel quality control information, wherein the processor is configured to: receive, by the receiver, a physical downlink control channel signal including an initial uplink authorization; using the transmitter according to the transmitter The initial uplink authorization uses two transport blocks to transmit uplink data; the receiver is used to receive a non-approved information for one of the two transport blocks; and the transmitter is used to apply the The physical uplink shared channel of the hybrid automatic repeat request transmits one channel quality control information together with one of the two transport blocks and a new transport block, wherein the two transport blocks Retransmitted according to the non-recognized information, wherein the number Q of coding symbols required to transmit the channel quality control information is based on the initial uplink authorization. Operator, wherein the initial uplink grant comprises: a number of a plurality of subcarriers of a transport block transmission of the control information channel quality information Information C ^{( x )} of the number of the plurality of coding blocks associated with the transmission block for transmitting the channel quality control information; and information on the size of the coding blocks And wherein "x" represents an indicator of the transport block for transmitting the channel quality control information. The user equipment according to claim 4, wherein the number of the coded symbols Q' is calculated using the following formula, ie among them, The number of single-carrier frequency division multiplexing access symbols representing the frequency shared channel of each initial entity, the number of one-bit elements of the channel quality control information represented by O , and L represents the cyclic redundancy attached to the channel quality indicator bit One digit of the check, as well as Determined by a quantity of a transmission block for a shared entity uplink shared channel and a parameter for determining an offset value by considering a difference in signal-to-noise ratio between the data and the uplink channel information, a scheduling bandwidth indicating the number of subcarriers used for the physical uplink shared channel transmission in the current subframe. Indicates the number of symbols in the current subframe. Is the number of one-bit elements of each symbol according to the modulation sequence in each of the transmission blocks, and Represents the number of bits that are defined in one of the transfer blocks in each of the transfer blocks. The user equipment of claim 4, further comprising: calculating information about the uplink information retransmitted by the one of the two transport blocks, wherein the uplink information is Information is calculated by the following formula, ie Represents a number of layers corresponding to each of the transport blocks, and Q _CQI represents a total number of coded bits of the channel quality control information. A method for transmitting channel quality control information in a wireless access system by a physical uplink shared channel, the wireless access system supporting a hybrid automatic repeat request, the method being performed by a base station and the method comprising: transmitting An entity downlink control channel signal including an initial uplink authorization; receiving, by the two uplink blocks, uplink data according to the initial uplink authorization; transmitting a non-approval for one of the two transmission blocks Information; and receiving, by the physical uplink shared channel of the hybrid automatic repeat request, a channel quality control information, together with the one of the two transport blocks and a new transport block, the two One of the transmission blocks is retransmitted according to the non-recognized information, wherein the number Q of coding symbols required to transmit the channel quality control information is calculated according to the initial uplink authorization, wherein the initial The chain authorization includes: information about the number of the plurality of subcarriers of a transmission block for transmitting the channel quality control information Information C ^{( x )} of the number of the plurality of coding blocks associated with the transmission block for transmitting the channel quality control information; and information on the size of the coding blocks And wherein "x" represents an indicator of the transport block for transmitting the channel quality control information. The method according to claim 7, wherein the number Q of the coded symbols is calculated using the following formula, ie among them, The number of single-carrier frequency division multiplexing access symbols representing the frequency shared channel of each initial entity, the number of one-bit elements of the channel quality control information represented by O , and L represents the cyclic redundancy attached to the channel quality indicator bit One digit of the check, as well as Determined by a quantity of a transmission block for a shared entity uplink shared channel and a parameter for determining an offset value by considering a difference in signal-to-noise ratio between the data and the uplink channel information, a scheduling bandwidth indicating the number of subcarriers used for the physical uplink shared channel transmission in the current subframe. Indicates the number of symbols in the current subframe. Is the number of one-bit elements of each symbol according to the modulation sequence in each of the transmission blocks, and Represents the number of bits that are defined in one of the transfer blocks in each of the transfer blocks. A base station for transmitting channel quality control information in a wireless access system by a physical uplink shared channel, the wireless access system supporting a hybrid automatic repeat request, the base station comprising: a receiver; a transmitter; And a processor for receiving the channel quality control information, wherein the processor is configured to: use the transmitter to transmit a physical downlink control channel signal including an initial uplink authorization; using the receiver according to the initial Uplinking the license to receive the uplink data using two transport blocks; using the transmitter to transmit a non-approved information for one of the two transport blocks; and using the receiver to automatically apply the hybrid The physical uplink shared channel of the retransmission request receives one channel quality control information together with one of the two transmission blocks and a new transmission block, one of the two transmission blocks Retransmitted according to the non-recognized information, wherein the number Q of code symbols required to transmit the channel quality control information is calculated according to the initial uplink authorization, The initial uplink grant comprises: means for transmitting the channel quality controls a plurality of sub-carriers transmitting information block number information Information C ^{( x )} of the number of the plurality of coding blocks associated with the transmission block for transmitting the channel quality control information; and information on the size of the coding blocks And wherein "x" represents an indicator of the transport block for transmitting the channel quality control information. According to the base station of claim 9, wherein the number of the coded symbols Q' is calculated using the following formula, ie among them, The number of single-carrier frequency division multiplexing access symbols representing the frequency shared channel of each initial entity, the one-digit number of the channel quality control information represented by O is heavy, and L represents the cyclic redundancy added to the channel quality indicator bit. One-digit quantity of the remainder check, as well as Determined by a quantity of a transmission block for a shared entity uplink shared channel and a parameter for determining an offset value by considering a difference in signal-to-noise ratio between the data and the uplink channel information, a scheduling bandwidth indicating the number of subcarriers used for the physical uplink shared channel transmission in the current subframe. Indicates the number of symbols in the current subframe. Is the number of one-bit elements of each symbol according to the modulation sequence in each of the transmission blocks, and Represents the number of bits that are defined in one of the transfer blocks in each of the transfer blocks.