TWI388146B - Communicating non-coherent detectable signal in broadband wireless access system - Google Patents

Description

Method for non-coherently detectable signal communication in a broadband wireless access system

The present invention relates to a broadband radio access system, and more particularly to a method for non-coherently detectable signal communication in an orthogonal frequency division multiplexing (OFDM) access system.

In order for multiple users to use limited radio resources at the same time, a multiplex scheme is required. The multiplex scheme divides a single line or transmission path into a plurality of channels that can simultaneously transmit/receive individual independent signals. There are various multiplexing schemes, for example, a frequency division multiplexing (FDM) scheme for dividing a single line into a plurality of frequency bands and performing signal multiplexing processing, and for dividing a single line into a plurality of extremely short time intervals and performing a plurality of signals. Time division multiplex (TDM) solution for processing.

At present, due to the increasing demand for multimedia materials in mobile communications, there is a need for a multiplexed method for efficiently transmitting large amounts of data. A representative multiplex method is an orthogonal frequency division multiplexing (OFDM) scheme.

The OFDM scheme refers to a digital modulation scheme that can improve the transmission rate of each bandwidth and avoid multipath interference. The OFDM scheme is characterized in that it uses a plurality of secondary carriers as a multiple carrier modulation scheme, wherein the individual secondary carriers are orthogonal to each other. Therefore, although the frequency components of the individual subcarriers overlap each other, the OFDM scheme does not cause a problem. The OFDM scheme can perform more subcarrier multiplexing processing than the general frequency division multiplexing (FDM) scheme. Therefore, high frequency use efficiency can be achieved.

A mobile communication system based on the above-described OFDM scheme currently uses various multi-directional access schemes, which can allocate radio resources to a plurality of users, such as an OFDM-FDMA (OFDMA) scheme, an OFDM-TDMA scheme, and an OFDM-CDMA scheme. Specifically, the OFDMA (Orthogonal Frequency Division Multiple Access) scheme allocates portions of all subcarriers to individual users so that they can accommodate multiple users.

Figure 1 shows a method for allocating radio resources in accordance with the prior art. Referring to FIG. 1, a broadband radio access system includes at least the specific configuration of FIG. 1 as a basic unit for allocating OFDMA uplink radio resources. This particular configuration shown in Figure 1 is referred to as a tile structure. In the case of the above-described block structure, the data of a channel quality indication channel (CQICH) or the channel of the acknowledge channel (ACKCH) is transmitted through a plurality of data subcarriers 102, 103, 105, 106, 107, 108, 110 and 111. Transfer. A pilot channel is transmitted through pilot subcarriers 101, 104, 109 and 112. Each carrier transmitted via a block structure is referred to as a constituent unit of the block structure.

Accordingly, the present invention is directed to a method of non-coherently detectable signal communication in an orthogonal frequency division multiplexing (OFDM) access system.

Additional features and advantages of the invention will be set forth in the description which follows. The objectives and other advantages of the invention may be realized and achieved by the written description and the scope of the invention.

To achieve these and other advantages and in accordance with the purpose of the present invention (as encompassed and broadly described herein), the present invention is in a method of allocating radio resources in a wireless communication system using orthogonal frequency division multiplexing (OFDM). Specifically, the method includes receiving, by a mobile station, data associated with a radio resource allocation map from a base station, wherein the radio allocation map includes at least control parameters for transmitting an uplink channel, wherein the uplink channel Comprising at least one OFDM block comprising at least one first set of subcarriers associated with at least a portion of an n-bit data payload, and an association representing at least a portion of a non-introduced m-bit data payload The second set of secondary carriers, wherein each of the secondary carriers carries a modulated data, and the first and second sets of secondary carriers are mutually exclusive, and the uplink channel is transmitted from the mobile station to the base station.

Preferably, the uplink channel includes at least one main block, which at least includes:

The x-axis represents the frequency domain and the y-axis represents the time domain.

Preferably, the uplink channel further includes a block to be included at a time, and at least includes:

The x-axis represents the frequency domain and the y-axis represents a time domain.

In one aspect of the invention, the information associated with the use of the first and second sets of secondary carriers is received in the mobile station using a standard map information element.

In another aspect of the invention, the information associated with the use of the first and second sets of secondary carriers is received in the mobile station using a HARQ map information element.

Preferably, the first set of subcarrier correlations represents at least a portion of a 6-bit data payload. Preferably, the second set of subcarrier correlations represents at least a portion of a 4-bit data payload.

In a further aspect of the invention, the uplink channel is associated with one of the transmission channel quality information, the antenna selection option, and the precoding matrix codebook.

Preferably, the uplink channel is associated with fast downlink measurement, MIMO mode, antenna cluster, antenna option, codebook, quantized precoding weight feedback, index of precoding matrix in codebook, channel matrix information and Every first-rate power control.

Preferably, the use of the second set of secondary carriers as the transmission m-bit data payload is at least partially requested by the base station or the mobile station.

Preferably, the six OFDM partitions include at least one OFDM time slot for representing a 4-bit data payload, wherein the 4-bit data payload is expressed as follows:

among them

According to another embodiment of the present invention, a method for allocating radio resources in a wireless communication system using orthogonal frequency division multiplexing (OFDM) includes transmitting at least one data associated with a radio resource allocation map to a mobile station, where The radio allocation map includes at least control parameters for receiving an uplink channel, wherein the uplink channel includes at least one OFDM block including at least one first group associated with at least a portion of an n-bit data payload a secondary carrier, and an associated second subcarrier representing at least a portion of the m-bit data payload, wherein each carrier carries a modulated data, and the first and second sets of secondary carriers are They are mutually exclusive and receive the uplink channel from the mobile station.

According to another embodiment of the present invention, a mobile communication device for allocating radio resources in a wireless communication system using orthogonal frequency division multiplexing (OFDM) includes at least one receiver for receiving an association from a base station. Information of a radio resource allocation map, wherein the radio allocation map includes at least control parameters for transmitting an uplink channel, wherein the uplink channel includes at least one OFDM partition, the at least one associated representation representing an n-bit data a first set of subcarriers of at least a portion of the payload, and a second set of subcarriers associated with at least a portion of the unrepresented m-bit data payload, wherein each carrier carries a modulated data, and the The secondary carriers of the first and second groups are mutually exclusive; and a transmitter for transmitting the uplink channel from the mobile communication device to the base station.

It is to be understood that the foregoing general description and the claims

The present invention relates to allocating radio resources in a wireless communication system using orthogonal frequency division multiplexing (OFDM).

DETAILED DESCRIPTION OF THE INVENTION Reference will now be made in detail to the preferred embodiments embodiments The same reference numbers are used throughout the drawings to refer to the same or the like.

Preferably, the present invention is applied to a broadband wireless access system such as disclosed in IEEE 802.16e. However, it is contemplated that the present invention can be utilized in other types of wireless access systems.

Generally, the channel estimation is performed on a data secondary carrier according to the pilot secondary carrier, so that the coherent detection scheme is used for the data secondary carrier. However, an ACKCH or CQICH may use a non-coherent detection scheme without performing channel estimation. At the same time, the ACKCH or CQICH uses orthogonal codewords to implement a non-coherent detection scheme.

Table 1 below representatively shows the codeword used to modulate the ACKCH secondary carrier when one bit of ACK information is provided.

Table 2 below representatively shows the codewords used to modulate the CQICH secondary carrier when 6-bit CQI information is provided.

Table 3 below representatively shows the codeword used to modulate the CQICH secondary carrier when providing 5-bit CQI information.

Table 4 below representatively shows the codewords used to modulate the CQICH secondary carrier when providing 4-bit CQI information.

Referring to Table 4, the vector for each partition includes 8 Quadrature Phase Shift Keying (QPSK) symbols such that a signal can be transmitted via an 8-data subcarrier.

Referring to Table 5, P0, P1, P2, and P3 are represented by Equation 1 below:

A single channel includes 6 blocks. The CQICH can use a single channel, and the ACKCH can use half of the channel. In other words, the CQICH can use 6 blocks, while the ACKCH can use 3 blocks.

2 shows a method for allocating a CQICH (Channel Quality Indicator Channel) region and an ACKCH (Acknowledgement Channel) region in an OFDM uplink in accordance with an embodiment of the present invention. Referring to FIG. 2, some areas of an uplink two-dimensional map are pre-assigned to the ACKCH dedicated area 201, and the remaining areas except the above areas are pre-assigned to the CQICH dedicated area 202.

The individual secondary channels are assigned to an ACKCH dedicated area 201 and a CQICH dedicated area 202 such that a specific mobile subscriber station (MSS) can use the ACKCH dedicated area 201 and the CQICH dedicated area 202. Referring to FIG. 2, an MSS #1 can be assigned to an ACK #1, an MSS #2 can be assigned to an ACK #2, ..., an MSS #8 can be assigned to an ACK #8, and One MSS #9 can be assigned to one CQICH #1, one MSS #10 can be assigned to one CQICH #2 and CQICH #3, and one MSS #11 can be assigned to one CQICH #4.

If the base station uses a non-coherent detection scheme, then no pilot secondary carrier is required. In this case, it is not necessary to use the 4 pilot subcarriers assigned to each of the partitions, and it is not necessary to consume the uplink radio resources and the transmission power of the terminal.

Therefore, the new information is carried on a secondary carrier assigned to a pilot channel, and then transmitted to the CQICH and ACKCH partitioning structures, so that specific information according to the same manner of the non-coherent detection scheme in the CQICH or ACKCH is obtained. A conventional subcarrier transmission equipped with a pilot signal can be used.

Figure 3 shows the block structure when a new signal is transmitted using a subcarrier that has transmitted a pilot signal in accordance with an embodiment of the present invention. Referring to FIG. 3, a new signal can be transmitted using subcarriers 301, 304, 309, and 312. These subcarriers are used to transmit a pilot signal.

As described above, if the new signal is carried on the secondary carrier that has transmitted the pilot signal in the block structure for CQICH and ACKCH, the secondary carrier that has transmitted each pilot signal is referred to as an additional secondary carrier. If a secondary carrier formed by clustering the unit block structure is used, one primary CQICH and one primary ACKCH can be obtained in addition to one primary ACKCH and one primary CQICH.

Figure 4 shows a method for obtaining a primary CQICH from a CQICH block structure in accordance with an embodiment of the present invention. Referring to FIG. 4, a single CQICH includes 6 block units (1 channel), wherein 4 additional subcarriers are available from each block unit, so a total of 24 additional subcarriers are available from each CQICH. Meanwhile, an ACKCH or a primary CQICH may include 3 block units (1/2 times channels), wherein each block unit includes 8 times of carriers, so that a single ACKCH or a primary CQICH may be configured using 24 times. Thus, a single ACKCH (i.e., secondary ACKCH) or primary CQICH may be constructed using 24 additional secondary carriers that are available from a single CQICH.

Figure 5 shows a method for obtaining a primary ACKCH from a two ACKCH partitioning structure in accordance with an embodiment of the present invention. Referring to FIG. 5, a single ACKCH may include a 3-block unit, wherein 4 additional sub-carriers are available from each block unit such that a total of 24 additional sub-carriers are available from the two ACKCHs. Meanwhile, a single ACKCH can be constructed using 24 carriers, so a single ACKCH (ie, secondary ACKCH) can be constructed when an additional subcarrier is obtained from a group containing at least 2 ACKCHs, as shown in FIG.

Figure 6 shows a method for obtaining a primary CQICH from a two CQICH block structure in accordance with an embodiment of the present invention. Referring to FIG. 6, each CQICH may include 6 block units, wherein 4 additional subcarriers may be obtained from each block unit such that a total of 48 additional subcarriers are available from the two CQICH. Meanwhile, a CQICH may also include a 6-block unit, wherein each block unit includes 8 carriers, so that a single CQICH can be constructed using 48 carriers. Thus, a single CQICH (ie, secondary CQICH) can be constructed using 48 additional subcarriers that can be obtained from the two CQICH.

Figure 7 shows a method for obtaining a primary CQICH from a four ACKCH partitioning structure in accordance with an embodiment of the present invention. Referring to FIG. 7, a single ACKCH may include a 3-block unit, wherein 4 additional sub-carriers are available from each block unit such that a total of 48 additional sub-carriers are available from 4 ACKCH. Meanwhile, a CQICH may include 6 block units, wherein each block unit includes 8 carriers, so that a single CQICH can be constructed using 48 carriers. Thus, a single CQICH (ie, secondary CQICH) can be constructed using 48 additional subcarriers that can be obtained from 4ACKCH.

Preferably, the following method is adaptable to assign a codeword to a carrier. According to a first preferred embodiment of the present invention, 12 blocks included in a single CQICH or two ACKCH are divided into 6 groups, each of which includes 2 blocks, and can be allocated as shown in Table 6-9 below. Codeword.

Representative of Table 6 below shows a method for assigning a codeword to modulate a secondary ACKCH secondary carrier when providing 1-bit ACK information.

Table 7 below representatively shows a method for assigning a codeword to modulate a CQICH secondary carrier when providing 6-bit CQI information.

Table 8 below representatively shows one of the codewords used to modulate a CQICH subcarrier when providing 5-bit CQI information.

Table 9 below representatively shows one of the code words used to modulate a CQICH subcarrier when providing 4-bit CQI information.

Meanwhile, in accordance with a second preferred embodiment of the present invention, a codeword can be assigned to each of the 12 partitions included in either a single CQICH or two ACKCH, as shown in Tables 10-11 below.

The additional subcarriers applied to the blocks of the codeword allocation shown in Table 11 are shown in Figure 8.

Figure 8 shows a block structure for a method of allocating a codeword using an additional subcarrier in accordance with an embodiment of the present invention.

Referring to FIG. 8 and Table 12 below, a vector assigned to each block includes 4 modulation symbols for signal transmission via 4 additional subcarriers.

The secondary ACKCH may be constructed using 24 carriers assigned to a pilot channel. A method for constructing an ACKCH using 24 pilot subcarriers can be implemented with additional subcarriers in a variety of ways other than the representative methods shown in Figures 4-5.

The secondary ACKCH can be configured in a 3-block configuration. Table 13 below representatively shows the codewords that can be used in the above case, where the secondary ACKCH includes 3 blocks.

The secondary CQICH can be constructed using 48 carriers. A method for constructing an ACKCH using 48-referred subcarriers can be implemented with additional subcarriers in a variety of ways other than the representative methods shown in Figures 6-7.

The secondary CQICH can be configured in a 6-block configuration. Table 14 below representatively shows the codewords that can be used in the above case, where the secondary CQICH includes 6 blocks.

At the same time, a new codeword can be constructed using Binary Phase Shift Keying (BPSK), as shown in Table 15.

A base station can use the message shown in Table 16 to inform a mobile subscriber station (MSS) of the information associated with the secondary ACKCH.

Referring to Table 16, the "UL_MAP Type" column and the "Sub-Type" column are adapted to notify an MSS message type information. In other words, the MSS can identify the content information of a corresponding message by referring to the "UL_MAP Type" column and the "Subtype" column. At the same time, the "Length" column informs the MSS of the message size of all messages, including the "Length" column of the bit cell unit.

The "Primary/Secondary H-ARQ Area Change Indication" column has a value of 1 when a current frame has an H-ARQ area different from the previous frame or when another H-ARQ area appears in the same frame. . The "OFDMA Symbol Offset" column informs the MSS of the coordinates of the "H-ARQ" region starting at the uplink by the symbol unit. The "Secondary Channel Offset" column informs the MSS of the coordinates of the "H-ARQ" area starting at the uplink with the secondary channel unit. The "OFDMA Symbol Number" column informs the MSS of the size information occupied by the "H-ARQ" area on an uplink in a symbol unit. The "Second Channel Number" column informs the MSS of the size information occupied by the "H-ARQ" area on an uplink by the secondary channel unit.

At the same time, the base station can use the message shown in Table 17 below to inform the MSS to associate the information of the secondary CQICH.

Referring to Table 17, the "UL_MAP Type" column and the "Sub-Type" column are adapted to notify the MSS message type information. In other words, the MSS can identify the message content information by referring to the above "UL_MAP Type" column and the "Subtype" column. At the same time, the "Length" column informs the MSS of the message size of all messages, including the "Length" column in the byte unit.

The "Primary/Secondary CQICH Area Change Indication" column has a value of 1 when a current frame has a CQICH region different from the previous frame or when another CQICH region appears in the same frame. The "OFDMA Symbol Offset" column informs the MSS of the coordinates of the "CQICH" region starting at the uplink by the symbol unit. The "Secondary Channel Offset" column informs the MSS of the coordinates of the "CQICH" area starting at the uplink with the secondary channel unit. The "OFDMA Symbol Number" column informs the MSS of the size information occupied by the "CQICH" area at an uplink in a symbol unit. The "Second Channel Number" column informs the MSS of the size information occupied by the "H-ARQ" area on an uplink by the secondary channel unit.

The information transmitted via the secondary CQICH in accordance with the present invention can be used in various ways in accordance with the type of feedback. For example, if the information of the associated signal-to-noise ratio (SNR) is transmitted to the base station, the payload of the above information can appear in Equation 2 below:

At the same time, in the case of a Multiple Input Multiple Output (MIMO) mode, the payloads shown in Table 18 below may occur.

Table 19 below representatively shows an antenna clustering method corresponding to the individual values shown in Table 18.

Table 20 below representatively shows an antenna selection method corresponding to the individual values shown in Table 18.

The following table 21 representative shows a method for using the subtractive precoding matrix codebook corresponding to the individual values shown in Table 18.

The base station transmits information related to the feedback type information to an MSS via a "CQICH_Enhanced_Alloc_IE" column.

Tables 22 and 23 below representatively show portions of the "CQICH_Enhanced_Alloc_IE" column including the feedback type information described above.

[Table 22]

Meanwhile, if only the information of the associated SNR is transmitted to the base station, the payload of the information transmitted via the secondary CQICH according to the present invention may appear in Equation 3 below:

Information about the type of feedback that can only transmit SNR-related information to the base station is transmitted to the MSS via the "CQICH_Enhanced_Alloc_IE" field.

The following table 24 representatively shows some parts of the "CQICH_Enhanced_Alloc_IE" including the feedback type information described above.

At the same time, the information transmitted via the secondary CQICH can be used in various ways depending on the type of feedback. In other words, the above secondary CQICH may be used only for MIMO mode selection. If the secondary CQICH is used only for MIMO mode selection, the payload may appear as shown in Table 25 below.

[Table 25]

Table 26 below representatively shows an antenna clustering method corresponding to the individual values shown in Table 25.

Table 27 below shows representative antenna selection methods corresponding to the individual values shown in Table 25.

Table 28 below representatively shows a method for using the reduced precoding matrix codebook corresponding to the individual values shown in Table 25.

The base station transmits information related to the above feedback type information to the MSS via the "CQICH_Enhanced_Alloc_IE" column.

The following table 29 representatively shows some parts of the "CQICH_Enhanced_Alloc_IE" including the feedback type information described above.

Although the secondary fast feedback channel is requested by the BS to the MSS, the MSS has the option to request the use by transmitting a request message to the BS. It can be understood from the above that when the signal detection can be performed according to the non-coherent detection scheme, a method for receiving the non-coherent detectable signal in a broadband wireless access system according to the present invention can transmit other signals. Non-introduction signals lead to an increase in transmission efficiency.

Although the present invention is described in the context of mobile communications, the present invention is also applicable to any wireless communication system using mobile devices, such as PDAs and laptops equipped with wireless communication capabilities.

The preferred embodiments may be implemented as methods, apparatus or articles of manufacture using standard stylized and/or engineering techniques to produce a software, firmware, hardware, or any combination thereof. The term "article" as used herein refers to code or logic (such as integrated circuit chips, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), etc.) or computer readable software that is executed in hardware logic. Media (such as magnetic storage media (eg, hard drives, floppy disks, tapes, etc.), optical storage (CD-ROM, CD-ROM, etc.), volatile and non-volatile memory devices (such as EEPROM, ROM, RAM, DRAM, SRAM, firmware, programmable logic, etc.).

The code in the computer readable medium is accessed and executed by the processor. The code implemented in the preferred embodiment can be further accessed from a file server via a transmission medium or through a network. In such cases, the article in which the code is implemented may include at least one transport coal body, such as a network transmission line, a wireless transmission medium, a signal transmitted through space, a radio wave, an infrared signal, and the like. Of course, those skilled in the art will appreciate that modifications to this configuration can be made without departing from the spirit or scope of the invention, and that the article can include at least any information bearing medium known in the art.

Figures 9A and 9B show a transmitter unit and a receiver unit of a mobile communication device in accordance with an embodiment of the present invention. Referring to FIG. 9A, the transmitter unit 500 preferably includes at least one processor 510 for processing signals to be transmitted. Prior to transmission, the data bits are channel encoded in a channel encoder 520 in which redundant bits are added to the data bits. The data bits are then mapped in a symbol mapper 530 to a signal such as QPSK or 16QAM. Thereafter, the signal is modulated by a secondary channel in a primary channel modulator 540, wherein the signal is mapped to the OFDMA secondary carrier. Subsequently, an OFDM waveform signal is constructed by combining an inverse fast Fourier transform (IFFT) 550 by combining a number of subcarriers. Finally, the signal is filtered by filter 560, converted into an analog signal by a digital-to-analog converter (DAC) 570, and transmitted by an RF module 580 to a receiver.

Referring to Figure 9B, the structure of the receiver 600 of the present invention is similar to the transmitter 500; however, the signal undergoes a reverse process. Preferably, a signal is received by RF module 680 and then converted to a digital signal by analog-to-digital converter 670 and filtered by filter 660. When filtering, the signal is subjected to a Fast Fourier Transform (FFT) 650 for decomposing the waveform signal. The signal is then demodulated via the secondary channel in the secondary channel demodulator 640, the symbols are symbol demapped by the demapper 630 and channel decoded by the channel decoder 620 prior to forwarding to the processor 610 for processing.

Preferably, when the user inputs the command information (such as a phone number) into the mobile communication device by pressing a button of the keyboard or by using a microphone, the processor 510 or 610 receives and processes the command information for execution. Appropriate features, such as dialing a phone number. The operating data can be retrieved from the storage unit to perform this function. Moreover, the processor 510 or 610 can display instructions and operational information on the display for user reference and convenient use.

The processor issues command information to the RF module 580 or 680 to initiate communication, for example, to transmit a radio signal containing at least the voice communication data. The RF module includes at least a receiver and a transmitter for receiving and transmitting radio signals. An antenna facilitates the transmission and reception of radio signals. When receiving a radio signal, the RF module can forward and convert the signal to a base frequency for processing by the processor. The processed signal will be converted into audible or readable information output via, for example, a speaker.

The processor is adapted to store the message history data received from other users and the message history data transmitted to the user in the storage unit, receive a conditional request for inputting the message history data by using the input, and process the condition request. The storage unit reads the message history data corresponding to the condition request, and outputs the message history data to the display unit. The storage unit is adapted to store the message history data of the received message and the transmitted message.

A person skilled in the art will appreciate that various modifications and changes can be made in the present invention without departing from the spirit and scope of the invention. Accordingly, the present invention is intended to cover such modifications and variations of the invention

101. . . Secondary carrier

102. . . Data subcarrier

103. . . Data subcarrier

104. . . Secondary carrier

105. . . Data subcarrier

106. . . Data subcarrier

107. . . Data subcarrier

108. . . Data subcarrier

109. . . Secondary carrier

110. . . Data subcarrier

111. . . Data subcarrier

112. . . Secondary carrier

201. . . ACKCH dedicated area

202. . . CQICH dedicated area

301. . . Secondary carrier

304. . . Secondary carrier

309. . . Secondary carrier

312. . . Secondary carrier

500. . . Transmitter unit

510. . . processor

520. . . Channel encoder

530. . . Symbol mapper

540. . . Secondary channel modulator

550. . . Anti-fast Fourier transform

560. . . filter

570. . . Digital to analog converter

580. . . RF module

600. . . receiver

610. . . processor

620. . . Channel decoder

630. . . Demapper

640. . . Secondary channel demodulator

650. . . Fast Fourier transform

660. . . filter

670. . . Analog to digital converter

680. . . RF module

The accompanying drawings, which are included in the claims The features, elements, and characteristics of the present invention, which are referred to in the different figures, are the same, equivalent, or similar features, elements and features in accordance with one or more embodiments. Figure 1 shows a method for allocating radio resources in accordance with the prior art.

2 shows a method for allocating a CQICH (Channel Quality Indicator Channel) region and an ACKCH (Acknowledgement Channel) region in an OFDM uplink in accordance with an embodiment of the present invention.

Figure 3 shows a block structure when a new signal is transmitted using a secondary carrier that has transmitted a pilot signal in accordance with an embodiment of the present invention.

Figure 4 shows a method for obtaining a primary ACKCH from a CQICH block structure in accordance with an embodiment of the present invention.

Figure 5 shows a method for obtaining a primary ACKCH from a two ACKCH partitioning structure in accordance with an embodiment of the present invention.

Figure 6 shows a method for obtaining a primary CQICH from a two CQICH block structure in accordance with an embodiment of the present invention.

Figure 7 shows a method for obtaining a primary CQICH from a four ACKCH partitioning structure in accordance with an embodiment of the present invention.

Figure 8 shows a block structure in a method for allocating a codeword using an additional subcarrier in accordance with an embodiment of the present invention.

9A and 9B are diagrams showing the construction of a transmitter unit and a receiver unit of a mobile communication device in accordance with an embodiment of the present invention.

Claims (16)

A method for transmitting feedback information by a mobile station in an orthogonal frequency division multiplexing (OFDM) wireless communication system, the method comprising at least a receiving step for receiving, from a base station, an uplink feedback channel Information, wherein the information includes control parameters for a primary uplink feedback channel and control parameters for a primary uplink feedback channel; and a transmission step for using the information to use the primary uplink The feedback channel and the secondary uplink feedback channel are transmitted to the base station; wherein the primary uplink feedback channel is composed of 6 uplink tiles, and the mth uplink block has the following Structure: The primary uplink feedback channel is configured to carry a p-bit payload, and uses quadrature phase shift keying (QPSK) symbols for quadrature modulation, where Mn _{, 8m+k} (0) k 7) is the kth QPSK symbol of the mth uplink block in the nth primary uplink feedback channel, wherein the secondary uplink feedback channel is composed of 6 uplink blocks Composition, and the mth uplink block has the following structure: The secondary uplink feedback channel is used to carry the q-bit payload (q<p), and uses the QPSK symbol for quadrature modulation, where M _n,4m+k (0) k 3) is the kth QPSK symbol of the mth uplink block in the nth secondary uplink feedback channel. The method of claim 1, wherein p is 6. The method of claim 1, wherein q is 4. The method of claim 3, wherein the 4-bit payload for the secondary uplink feedback channel is mapped to the uplink block according to the following manner: among them among them , , And . A method for receiving feedback information by a base station in an orthogonal frequency division multiplexing (OFDM) wireless communication system, the method comprising at least: a transmitting step for transmitting information related to an uplink feedback channel to a a mobile station, wherein the information includes control parameters for a primary uplink feedback channel and control parameters for a primary uplink feedback channel; and a receiving step for receiving the mobile station from the mobile station using the information a primary uplink feedback channel and the secondary uplink feedback channel; wherein the primary uplink feedback channel is composed of 6 uplink tiles, and the mth uplink block has the following structure: The primary uplink feedback channel is configured to carry a p-bit payload, and uses a quadrature phase shift keying (QPSK) symbol for quadrature modulation, where Mn _{, 8m+k} (0) k 7) is the kth QPSK symbol of the mth uplink block in the nth primary uplink feedback channel, wherein the secondary uplink feedback channel is composed of 6 uplink blocks Composition, and the mth uplink block has the following structure: The secondary uplink feedback channel is used to carry the q-bit payload (q<p), and uses the QPSK symbol for quadrature modulation, where M _n,4m+k (0) k 3) is the kth QPSK symbol of the mth uplink block in the nth secondary uplink feedback channel. The method of claim 5, wherein p is 6. The method of claim 5, wherein q is 4. The method of claim 7, wherein the 4-bit payload for the secondary uplink feedback channel is mapped to the uplink block according to the following manner: among them among them , , And . a mobile station configured to transmit feedback information in an orthogonal frequency division multiplexing (OFDM) wireless communication system, the mobile station comprising: a processor; and a radio frequency (RF) module in which the processing Under the control of the device, the radio signal is transmitted to the outside and the radio signal is received from the outside, wherein the processor is configured to perform the following steps: a receiving step for receiving, from a base station, an uplink feedback channel Information, wherein the information includes control parameters for a primary uplink feedback channel and control parameters for a primary uplink feedback channel; and a transmission step for using the information to feed the primary uplink The channel and the secondary uplink feedback channel are transmitted to the base station; wherein the primary uplink feedback channel is composed of 6 uplink tiles, and the mth uplink block has the following structure: The primary uplink feedback channel is configured to carry a p-bit payload, and uses quadrature phase shift keying (QPSK) symbols for quadrature modulation, where Mn _{, 8m+k} (0) k 7) is the kth QPSK symbol of the mth uplink block in the nth primary uplink feedback channel, wherein the secondary uplink feedback channel is composed of 6 uplink blocks Composition, and the mth uplink block has the following structure: The secondary uplink feedback channel is used to carry the q-bit payload (q<p), and uses the QPSK symbol for quadrature modulation, where M _n,4m+k (0) k 3) is the kth QPSK symbol of the mth uplink block in the nth secondary uplink feedback channel. For example, the mobile station described in claim 9 of the patent scope, wherein p is 6. For example, the mobile station described in claim 9 of the patent scope, wherein q is 4. The mobile station of claim 11, wherein the 4-bit payload for the secondary uplink feedback channel is mapped to the uplink block according to the following manner: among them among them , , And . a base station configured to receive feedback information in an orthogonal frequency division multiplexing (OFDM) wireless communication system, the base station comprising: a processor; and a radio frequency (RF) module in which the processing Under the control of the device, the radio signal is transmitted to the outside and receives the radio signal from the outside, wherein the processor is configured to perform the following steps: a transmission step for transmitting information related to the uplink feedback channel to an action a station, wherein the information includes control parameters for a primary uplink feedback channel and control parameters for a primary uplink feedback channel; and a receiving step for receiving the primary from the mobile station using the information An uplink feedback channel and the secondary uplink feedback channel; wherein the primary uplink feedback channel is composed of 6 uplink tiles, and the mth uplink block has the following structure : The primary uplink feedback channel is configured to carry a p-bit payload, and uses quadrature phase shift keying (QPSK) symbols for quadrature modulation, where Mn _{, 8m+k} (0) k 7) is the kth QPSK symbol of the mth uplink block in the nth primary uplink feedback channel, wherein the secondary uplink feedback channel is composed of 6 uplink blocks Composition, and the mth uplink block has the following structure: The secondary uplink feedback channel is used to carry the q-bit payload (q<p), and uses the QPSK symbol for quadrature modulation, where M _n,4m+k (0) k 3) is the kth QPSK symbol of the mth uplink block in the nth secondary uplink feedback channel. For example, the base station described in claim 13 of the patent scope, wherein p is 6. For example, the base station described in claim 13 of the patent scope, wherein q is 4. The base station of claim 15, wherein the 4-bit payload for the secondary uplink feedback channel is mapped to the uplink block according to the following manner: among them among them , , And .