WO2010146963A1

WO2010146963A1 - Mobile communication system, base station device, mobile station device, and mobile communication method

Info

Publication number: WO2010146963A1
Application number: PCT/JP2010/058525
Authority: WO
Inventors: 立志相羽; 昇平山田
Original assignee: シャープ株式会社
Priority date: 2009-06-18
Filing date: 2010-05-20
Publication date: 2010-12-23
Also published as: JP2012169693A

Abstract

Provided is a mobile communication system in which a base station device and a mobile station device communicate with each other using a plurality of component carriers, wherein the base station device continuously assigns a first physical uplink control channel to the mobile station device, dynamically assigns a second physical uplink control channel to the mobile station device, and assigns a physical uplink shared channel to the mobile station device, and the mobile station device performs simultaneous transmission through the physical uplink shared channel and the first physical uplink control channel when transmission through the first physical uplink control channel, transmission through the second physical uplink control channel, and transmission through the physical uplink shared channel occur in the same sub-frame.

Description

Mobile communication system, base station apparatus, mobile station apparatus, and mobile communication method

The present invention relates to a mobile communication system and a mobile communication method including a base station apparatus and a mobile station apparatus.

3GPP (3rd Generation Partnership Project) examines and creates specifications for mobile communication systems based on networks developed from W-CDMA (Wideband-Code Division Multiple Access) and GSM (Global System for Mobile Communications). It is a project. In 3GPP, the W-CDMA system is standardized as a third generation cellular mobile communication system, and services are started sequentially. In addition, HSDPA (High-speed Downlink た Packet Access), which further increases the communication speed, has been standardized and a service has been started. 3GPP uses the evolution of third-generation radio access technology (hereinafter referred to as “LTE (Long Term Evolution)” or “EUTRA (Evolved Universal Terrestrial Radio Access))) and a wider frequency band. Thus, studies on a mobile communication system (hereinafter, referred to as “LTE-A Evolution-Advanced” or “Advanced-EUTRA”) that achieves higher-speed data transmission / reception have been underway. .

As communication methods in LTE, OFDMA (Orthogonal Frequency Division Multiple Access) schemes that perform user multiplexing using mutually orthogonal subcarriers and SC-FDMA (Single Carrier-Frequency Division Multiple Access) schemes are being studied. . That is, an OFDMA scheme that is a multicarrier communication scheme is proposed for the downlink, and an SC-FDMA scheme that is a single carrier communication scheme is proposed for the uplink.

On the other hand, as a communication method in LTE-A, the OFDMA method is used in the downlink, and in the uplink, in addition to the SC-FDMA method, Clustered-SC-FDMA (Clustered-Single-Carrier-Frequency-Division-Multiple-Access, DFT-s -It is also called OFDM (with Spectrum Division Control). Here, the SC-FDMA system and the Clustered-SC-FDMA system proposed as uplink communication systems in LTE and LTE-A are PAPR (Peak-to-Average-Power-Ratio) when transmitting data (information): (Peak power to average power ratio) can be kept low.

In LTE-A, a frequency band used in a general mobile communication system is continuous, whereas a plurality of continuous / discontinuous frequency bands (hereinafter referred to as “carrier element, carrier component (CC)”). ”Or“ element carrier, component carrier (CC: Component Carrier) ”) is used in combination to operate as one frequency band (wideband frequency band) (frequency band aggregation: Spectrum aggregation) , Carrier aggregation, Frequency aggregation, etc.). Furthermore, in order for the base station apparatus and the mobile station apparatus to communicate using a wide frequency band more flexibly, the frequency band used for downlink communication and the frequency band used for uplink communication are different frequency bands. It has also been proposed that the width is asymmetric (Asymmetric carrier aggregation) (Non-patent Document 1).

FIG. 17 is a diagram for explaining frequency band aggregation in the prior art. The frequency band used for downlink (DL: Down ような Link) communication and the frequency band used for uplink (UL: Up Link) communication as shown in FIG. It is also called aggregation (Symmetric carriergregaggregation). As shown in FIG. 17, the base station apparatus and the mobile station apparatus use a plurality of carrier elements that are continuous / discontinuous frequency bands in a composite manner, so that a wide band frequency band composed of a plurality of carrier elements is used. Can communicate. In FIG. 17, as an example, the frequency band used for downlink communication with a bandwidth of 100 MHz (hereinafter also referred to as a DL system bandwidth or a DL system bandwidth) includes five carriers having a bandwidth of 20 MHz. It shows that it is composed of elements (DCC1: Downlink Component Carrier1, DCC2, DCC3, DCC4, DCC5). In addition, as an example, a frequency band used for uplink communication having a bandwidth of 100 MHz (hereinafter also referred to as UL system band or UL system bandwidth) includes five carrier elements having a bandwidth of 20 MHz ( UCC1: Uplink Component Carrier1, UCC2, UCC3, UCC4, UCC5).

In FIG. 17, each downlink carrier element includes a downlink channel such as a physical downlink control channel (hereinafter, PDCCH: Physical Downlink Control Channel), a physical downlink shared channel (hereinafter, PDSCH: Physical Downlink Shared Channel). Is placed. The base station device transmits control information (resource allocation information, MCS (Modulation and coding scheme) information, HARQ (Hybrid and Automatic Repeat request) Request for transmitting a downlink transport block transmitted using PDSCH. , Hybrid automatic retransmission request) processing information etc.) is transmitted to the mobile station apparatus using PDCCH, and the downlink transport block is transmitted to the mobile station apparatus using PDSCH. That is, in FIG. 17, the base station apparatus can transmit up to five downlink transport blocks to the mobile station apparatus in the same subframe.

In addition, an uplink channel such as a physical uplink control channel (hereinafter, PUCCH: Physical Uplink Control Channel), a physical uplink shared channel (hereinafter, PUSCH: Physical Uplink Shared Channel) is arranged in each uplink carrier element. Is done. The mobile station apparatus uses PUCCH and / or PUSCH to base control information (control signal) such as control information, channel state information, and scheduling request in HARQ for the physical downlink control channel and / or downlink transport block. Send to station device. Here, the control information in HARQ is information indicating ACK / NACK (acknowledgement: Positive Acknowledgement / Negative response: Negative Acknowledgement, ACK signal or NACK signal) for the physical downlink control channel and / or downlink transport block, and / Or information indicating DTX (Discontinuous Transmission). DTX is information indicating that the mobile station device has not detected the PDCCH from the base station device. Here, in FIG. 17, there may be a downlink / uplink carrier element in which any of the downlink / uplink channels such as PDCCH, PDSCH, PUCCH, and PUSCH is not arranged.

Similarly, FIG. 18 is a diagram for explaining asymmetric frequency band aggregation in the prior art. As shown in FIG. 18, the base station apparatus and the mobile station apparatus have different frequency bands used for downlink communication and frequency bands used for uplink communication, and carrier elements constituting these frequency bands. Can be used in a wide frequency band. In FIG. 18, as an example, a frequency band used for downlink communication having a bandwidth of 100 MHz is configured by five carrier elements (DCC1, DCC2, DCC3, DCC4, and DCC5) having a bandwidth of 20 MHz. In addition, it is shown that the frequency band used for uplink communication having a bandwidth of 40 MHz is configured by two carrier elements (UCC1, UCC2) having a bandwidth of 20 MHz. In FIG. 18, a downlink / uplink channel is arranged in each of the downlink / uplink carrier elements, and the base station apparatus uses a plurality of PDSCHs assigned by a plurality of PDCCHs to use the same subframe. A plurality of downlink transport blocks are transmitted to the mobile station apparatus. Also, the mobile station apparatus transmits control information (control signal) such as control information, channel state information, and scheduling request in HARQ to the base station apparatus using PUCCH and / or PUSCH.

However, in the conventional technology, the mobile station apparatus transmits data (information) to the base station apparatus using PUSCH and PUCCH in the same subframe (simultaneous transmission of PUSCH and PUCCH), or a plurality of data in the same subframe. Data is transmitted to the base station apparatus using a plurality of PUSCHs (simultaneous transmission of a plurality of PUSCHs), and data is transmitted to the base station apparatus using a plurality of PUCCHs in the same subframe (simultaneous transmission of a plurality of PUCCHs). There was a problem that it could not be sent.

On the other hand, in LTE-A, since the mobile station apparatus transmits data using a plurality of uplink carrier elements, the transmission power (PAPR: Peak Average Power Ratio: peak power versus average power) is higher than before. Data) can be transmitted to the base station apparatus. However, even in LTE-A, it is important for the mobile station apparatus to suppress the transmission power when data is transmitted to a certain extent, and a data transmission method using a plurality of PUSCHs and PUCCHs considering the transmission power in the mobile station apparatus Is required.

The present invention has been made in view of such circumstances, and when a base station apparatus and a mobile station apparatus perform communication in a wide frequency band by using carrier elements in combination, the mobile station apparatus An object of the present invention is to provide a mobile communication system and a mobile communication method capable of transmitting data using a plurality of PUSCHs and PUCCHs with low transmission power.

(1) In order to achieve the above object, the present invention has taken the following measures. That is, the mobile communication system of the present invention is a mobile communication system in which a base station apparatus and a mobile station apparatus communicate using a plurality of component carriers, and the base station apparatus includes a first physical uplink control channel. Is continuously allocated to the mobile station apparatus, a second physical uplink control channel is dynamically allocated to the mobile station apparatus, a physical uplink shared channel is allocated to the mobile station apparatus, and the mobile station apparatus When the transmission of the first physical uplink control channel, the transmission of the second physical uplink control channel, and the transmission of the physical uplink shared channel occur in the same subframe, the physical uplink shared A simultaneous transmission of the channel and the first physical uplink control channel is performed.

(2) A mobile communication system in which a base station apparatus and a mobile station apparatus communicate with each other using a plurality of component carriers, wherein the mobile station apparatus transmits first control information. A first physical uplink control channel for continuously assigning to the mobile station apparatus, and the mobile station apparatus dynamically assigns a second physical uplink control channel for transmitting second control information. The mobile station apparatus allocates a physical uplink shared channel to the mobile station apparatus, and the mobile station apparatus transmits the first physical uplink control channel and the second physical uplink control channel. When the transmission of the physical uplink shared channel occurs in the same subframe, the second control information is arranged in the physical uplink shared channel, It is characterized by simultaneous transmission of the the uplink shared channel first physical uplink control channel.

(3) A base station apparatus in a mobile communication system in which a base station apparatus and a mobile station apparatus communicate with each other using a plurality of component carriers, wherein the mobile station continuously uses a first physical uplink control channel. Means for allocating to a device, means for dynamically allocating a second physical uplink control channel to the mobile station device, means for allocating a physical uplink shared channel to the mobile station device, and When transmission of one physical uplink control channel, transmission of the second physical uplink control channel, and transmission of the physical uplink shared channel occur in the same subframe, the mobile station apparatus performs the Means for receiving simultaneous transmission of a physical uplink shared channel and the first physical uplink control channel. It is.

(4) In addition, a base station apparatus in a mobile communication system in which a base station apparatus and a mobile station apparatus communicate with each other using a plurality of component carriers, the mobile station apparatus transmitting first control information Means for continuously assigning the first physical uplink control channel to the mobile station device, and the mobile station device dynamically assigns a second physical uplink control channel for transmitting the second control information. Means for allocating to the mobile station apparatus; means for allocating a physical uplink shared channel to the mobile station apparatus; and transmission of the first physical uplink control channel and second physical uplink control in the mobile station apparatus. When the transmission of the channel and the transmission of the physical uplink shared channel occur in the same subframe, the second control information by the mobile station apparatus Is characterized in that it comprises, means for receiving a simultaneous transmission of the placement has been the physical uplink shared channel first physical uplink control channel.

(5) A mobile station apparatus in a mobile communication system in which a base station apparatus and a mobile station apparatus communicate with each other using a plurality of component carriers, wherein the base station continuously uses a first physical uplink control channel. Means assigned by the device, means for dynamically assigning a second physical uplink control channel by the base station device, means for assigning a physical uplink shared channel by the base station device, and the first physical When transmission of the uplink control channel, transmission of the second physical uplink control channel, and transmission of the physical uplink shared channel occur in the same subframe, the physical uplink shared channel and the second physical uplink shared channel Means for simultaneously transmitting one physical uplink control channel.

(6) A mobile station apparatus in a mobile communication system in which a base station apparatus and a mobile station apparatus communicate with each other using a plurality of component carriers, and a first physical uplink for transmitting first control information Means for continuously assigning a link control channel by the base station apparatus; means for dynamically assigning a second physical uplink control channel for transmitting second control information by the base station apparatus; Means for allocating an uplink shared channel by the base station apparatus; transmission of the first physical uplink control channel; transmission of the second physical uplink control channel; and transmission of the physical uplink shared channel. When the same subframe occurs, the second control information is arranged in the physical uplink shared channel, It is characterized in that it comprises means for simultaneous transmission of the the uplink shared channel first physical uplink control channel.

(7) A communication method for a base station apparatus in a mobile communication system in which a base station apparatus and a mobile station apparatus communicate with each other using a plurality of component carriers, wherein the first physical uplink control channel is continuously transmitted. Assigning to the mobile station device, dynamically assigning a second physical uplink control channel to the mobile station device, assigning a physical uplink shared channel to the mobile station device, and in the mobile station device, the first physical uplink When transmission of the uplink control channel, transmission of the second physical uplink control channel, and transmission of the physical uplink shared channel occur in the same subframe, the physical uplink by the mobile station apparatus A simultaneous transmission of a shared channel and the first physical uplink control channel is received.

(8) A base station apparatus communication method in a mobile communication system in which a base station apparatus and a mobile station apparatus communicate with each other using a plurality of component carriers, wherein the mobile station apparatus receives first control information. A first physical uplink control channel for transmission is continuously allocated to the mobile station apparatus, and the mobile station apparatus dynamically allocates a second physical uplink control channel for transmitting second control information. And assigning a physical uplink shared channel to the mobile station device, wherein the mobile station device transmits the first physical uplink control channel and the second physical uplink control channel. And the transmission of the physical uplink shared channel occur in the same subframe, before the second control information by the mobile station apparatus is arranged. It is characterized by receiving a physical uplink shared channel simultaneous transmission of the first physical uplink control channel.

(9) A communication method for a mobile station apparatus in a mobile communication system in which a base station apparatus and a mobile station apparatus communicate with each other using a plurality of component carriers, wherein the first physical uplink control channel is continuously transmitted. Assigned by the base station apparatus, dynamically assigned by the base station apparatus with a second physical uplink control channel, assigned by the base station apparatus with a physical uplink shared channel, and the first physical uplink control When the transmission of the channel, the transmission of the second physical uplink control channel, and the transmission of the physical uplink shared channel occur in the same subframe, the physical uplink shared channel and the first physical uplink It is characterized by simultaneous transmission of uplink control channels.

(10) A communication method of a mobile station apparatus in a mobile communication system in which a base station apparatus and a mobile station apparatus communicate with each other using a plurality of component carriers, and a first method for transmitting first control information Of the physical uplink control channel is continuously allocated by the base station apparatus, and the second physical uplink control channel for transmitting the second control information is dynamically allocated by the base station apparatus, A link shared channel is assigned by the base station apparatus, and the transmission of the first physical uplink control channel, the transmission of the second physical uplink control channel, and the transmission of the physical uplink shared channel are the same sub If it occurs in a frame, the second control information is arranged in the physical uplink shared channel, and the physical uplink It is characterized by performing a use channel simultaneous transmission of the first physical uplink control channel.

According to the present invention, when a base station apparatus and a mobile station apparatus perform communication in a wide frequency band by using a plurality of continuous / discontinuous frequency bands (carrier elements) in combination, It is possible to transmit and receive information using a plurality of PUSCHs and PUCCHs with low transmission power.

It is a figure which shows notionally the structure of the physical channel which concerns on embodiment of this invention. It is a block diagram which shows schematic structure of the base station apparatus 100 which concerns on embodiment of this invention. It is a block diagram which shows schematic structure of the mobile station apparatus 200 which concerns on embodiment of this invention. It is a figure which shows the example of the mobile communication system which can apply 1st Embodiment. It is another figure which shows the example of the mobile communication system which can apply 1st Embodiment. It is a figure explaining the example of operation | movement of the mobile station apparatus when a physical uplink shared channel is allocated. It is another figure explaining the example of operation | movement of the mobile station apparatus when a physical uplink shared channel is allocated. It is a figure which shows the example of the mobile communication system which can apply 2nd Embodiment. It is another figure explaining the example of operation | movement of the mobile station apparatus when a physical uplink shared channel is allocated. It is another figure explaining the example of operation | movement of the mobile station apparatus when a physical uplink shared channel is allocated. It is a figure explaining the example of arrangement | positioning of 1st control information and uplink data. It is another figure explaining the example of arrangement | positioning of 1st control information and uplink data. It is another figure explaining the example of arrangement | positioning of 1st control information and uplink data. It is another figure explaining the example of operation | movement of the mobile station apparatus when a physical uplink shared channel is allocated. It is another figure explaining the example of operation | movement of the mobile station apparatus when a physical uplink shared channel is allocated. It is a figure explaining the example of arrangement | positioning of 1st control information, 2nd control information, and uplink data. It is a figure which shows the example of the frequency band aggregation in a prior art. It is a figure which shows the example of the asymmetric frequency band aggregation in a prior art.

Next, an embodiment according to the present invention will be described with reference to the drawings. FIG. 1 is a diagram illustrating a configuration example of a channel according to an embodiment of the present invention. The downlink physical channel includes a physical broadcast channel (PBCH), a physical downlink control channel (PDCCH: Physical Downlink Control Channel), a physical downlink shared channel (PDSCH: Physical Downlink Shared Channel), a physical multicast channel ( PMCH: Physical Multicast Channel, physical control format instruction channel (PCFICH: Physical Control Format Indicator Channel), and physical hybrid automatic retransmission request instruction channel (PHICH: Physical Hybrid ARQ Indicator Channel). An uplink physical channel is configured by a physical uplink shared channel (PUSCH), a physical uplink control channel (PUCCH), and a physical random access channel (PRACH: Physical Random Access channel). The

The physical broadcast channel (PBCH) maps the broadcast channel (BCH) at intervals of 40 milliseconds. The timing of 40 milliseconds is blind detection. That is, explicit signaling is not performed for timing presentation. In addition, a subframe including a physical broadcast channel (PBCH) can be decoded only by the subframe (self-decodable).

The physical downlink control channel (PDCCH) includes physical downlink shared channel (PDSCH) resource allocation, hybrid automatic repeat request (HARQ) information for downlink data, and physical uplink shared channel (PUSCH). This is a channel used for notifying (transmitting) uplink transmission permission, which is resource allocation, to the mobile station apparatus. The PDDCH is configured by a plurality of control channel elements (CCE: Control Channel Element), and the mobile station apparatus receives the PDCCH from the base station apparatus by detecting the PDCCH configured by the CCE. This CCE is composed of a plurality of resource element groups (REG: Resource Element Group, also referred to as mini-CCE) distributed in the frequency and time domains. Here, the resource element is a unit resource composed of one OFDM symbol (time component) and one subcarrier (frequency component). For example, REG is a downlink pilot channel in the frequency domain within the same OFDM symbol. Except for this, it is composed of four downlink resource elements that are continuous in the frequency domain. Also, for example, one PDCCH is composed of one, two, four, and eight CCEs having consecutive CCE identification numbers (CCE indexes).

Also, the PDCCH is encoded (Separate-Coding) separately for each mobile station apparatus and for each type. That is, the mobile station apparatus detects a plurality of PDCCHs, and acquires information indicating downlink or uplink resource allocation and other control signals. Each PDCCH has a CRC (Cyclic Redundancy Check) value that can identify the format, and the mobile station apparatus performs CRC for each CCE set in which the PDCCH can be configured, and the CRC succeeds. Get PDCCH. This is also referred to as blind decoding, and the range of CCE sets in which a PDCCH in which the mobile station apparatus performs this blind decoding can be configured is called a search space. That is, the mobile station apparatus performs blind decoding on the CCE in the search area and detects the PDCCH.

When the PDCCH includes physical downlink shared channel (PDSCH) resource allocation, the mobile station device uses the physical downlink shared channel (PDSCH) according to the resource allocation indicated by the PDCCH from the base station device. Data (downlink data (downlink shared channel (DL-SCH)) and / or downlink control data (downlink control information)). That is, this PDCCH is a signal for performing resource allocation for the downlink (hereinafter referred to as “downlink transmission permission signal” or “downlink grant”). In addition, when the PDCCH includes physical uplink shared channel (PUSCH) resource allocation, the mobile station device sets the physical uplink shared channel (PUSCH) according to the resource allocation indicated by the PDCCH from the base station device. Data (uplink data (uplink shared channel (UL-SCH)) and / or uplink control data (uplink control information)) is transmitted. That is, the PDCCH is a signal that permits data transmission on the uplink (hereinafter referred to as an “uplink transmission permission signal” or “uplink grant”).

The physical downlink shared channel (PDSCH) is a channel used for transmitting downlink data (downlink shared channel: DL-SCH) or paging information (paging channel: PCH). The physical multicast channel (PMCH) is a channel used for transmitting the multicast channel (MCH), and a downlink reference signal, an uplink reference signal, and a physical downlink synchronization signal are separately arranged.

Here, downlink data (DL-SCH) indicates transmission of user data, for example, and DL-SCH is a transport channel. In DL-SCH, HARQ and dynamic adaptive radio link control are supported, and beamforming can be used. The DL-SCH supports dynamic resource allocation and semi-static resource allocation.

The physical uplink shared channel (PUSCH) is a channel mainly used for transmitting uplink data (uplink shared channel: UL-SCH). When the base station apparatus schedules the mobile station apparatus, control information (control signal) is also transmitted using PUSCH. This control information includes channel state information CSI (Channel State information or Channel statistical information) indicating a downlink channel state, a downlink channel quality identifier CQI (Channel Quality Indicator), a precoding matrix identifier PMI (PrecodingMatrix). Indicator), rank identifier RI (Rank Indicator), and HARQ control information (information indicating ACK / NACK and / or information indicating DTX) for PDCCH and / or downlink transport block. Here, the channel state information CSI includes, for example, explicit channel state information which is the downlink channel state itself measured by the mobile station apparatus (representing the measured downlink channel state by an inherent factor or the like). (Explicit CSI) is also included. CQI, PMI, RI, etc. are also called implicit channel state information (Implicit CSI).

Here, uplink data (UL-SCH) indicates, for example, transmission of user data, and UL-SCH is a transport channel. In UL-SCH, HARQ and dynamic adaptive radio link control are supported, and beamforming can be used. UL-SCH supports dynamic resource allocation and quasi-static resource allocation.

Also, in uplink data (UL-SCH) and downlink data (DL-SCH), a radio resource control signal (hereinafter referred to as “RRC signaling: Radio （Resource Control Signaling”) exchanged between the base station apparatus and the mobile station apparatus. ”, MAC (Medium Access Control) control elements, and the like may be included.

The physical uplink control channel (PUCCH) is a channel used for transmitting control information (control signal). Here, the control information is, for example, channel state information CSI transmitted (feedback) from the mobile station apparatus to the base station apparatus, downlink channel quality identifier CQI, precoding matrix identifier PMI, rank identifier RI, mobile station apparatus Requests allocation of resources for transmitting uplink data (requests transmission on UL-SCH) (SR: Scheduling Request), control information in HARQ for PDCCH and / or downlink transport block ( Information indicating ACK / NACK and / or information indicating DTX).

The physical control format indication channel (PCFICH) is a channel used to notify the mobile station apparatus of the number of OFDM symbols used for PDCCH, and is transmitted in each subframe. The physical hybrid automatic repeat request instruction channel (PHICH) is a channel used for transmitting ACK / NACK used for HARQ of uplink data. The physical random access channel (PRACH) is a channel used for transmitting a random access preamble and has a guard time. As shown in FIG. 1, the mobile communication system according to the present embodiment includes a base station device 100 and a mobile station device 200.

[Configuration of base station apparatus]
FIG. 2 is a block diagram showing a schematic configuration of the base station apparatus 100 according to the embodiment of the present invention. The base station apparatus 100 includes a data control unit 101, a transmission data modulation unit 102, a radio unit 103, a scheduling unit 104, a channel estimation unit 105, a received data demodulation unit 106, a data extraction unit 107, and an upper layer. 108 and an antenna 109. The radio unit 103, the scheduling unit 104, the channel estimation unit 105, the reception data demodulation unit 106, the data extraction unit 107, the upper layer 108 and the antenna 109 constitute a reception unit, and the data control unit 101, the transmission data modulation unit 102, The radio unit 103, the scheduling unit 104, the upper layer 108, and the antenna 109 constitute a transmission unit.

The antenna 109, the radio unit 103, the channel estimation unit 105, the reception data demodulation unit 106, and the data extraction unit 107 perform processing on the uplink physical layer. The antenna 109, the radio unit 103, the transmission data modulation unit 102, and the data control unit 101 perform downlink physical layer processing.

The data control unit 101 receives a transport channel from the scheduling unit 104. The data control unit 101 maps the transport channel and the signal and channel generated in the physical layer to the physical channel based on the scheduling information input from the scheduling unit 104. Each piece of data mapped as described above is output to transmission data modulation section 102.

The transmission data modulation unit 102 modulates transmission data to the OFDM scheme. The transmission data modulation unit 102 performs data modulation, coding, and coding on the data input from the data control unit 101 based on the scheduling information from the scheduling unit 104 and the modulation scheme and coding scheme corresponding to each PRB. Input signal serial / parallel conversion, IFFT (Inverse Fourier Transform) processing, CP (Cyclic Prefix) insertion, filtering, and other signal processing are performed to generate transmission data, and to the wireless unit 103 Output. Here, the scheduling information includes downlink physical resource block PRB (Physical Resource Block) allocation information, for example, physical resource block position information composed of frequency and time, and the modulation scheme and encoding corresponding to each PRB. The scheme includes, for example, information such as a modulation scheme: 16QAM and a coding rate: 2/3 coding rate.

The radio unit 103 up-converts the modulation data input from the transmission data modulation unit 102 to a radio frequency to generate a radio signal, and transmits the radio signal to the mobile station apparatus 200 via the antenna 109. Radio section 103 receives an uplink radio signal from mobile station apparatus 200 via antenna 109, down-converts it into a baseband signal, and receives received data as channel estimation section 105 and received data demodulation section 106. And output.

The scheduling unit 104 performs processing of a medium access control (MAC: Medium Access Control) layer. The scheduling unit 104 performs mapping between logical channels and transport channels, downlink and uplink scheduling (HARQ processing, selection of transport format, etc.), and the like. Since the scheduling unit 104 controls the processing units of each physical layer in an integrated manner, the scheduling unit 104, the antenna 109, the radio unit 103, the channel estimation unit 105, the reception data demodulation unit 106, the data control unit 101, the transmission data modulation There is an interface between the unit 102 and the data extraction unit 107 (not shown).

In downlink scheduling, the scheduling unit 104 receives feedback information (uplink channel state information (CQI, PMI, RI), ACK / NACK information for downlink data, etc.) received from the mobile station apparatus 200, each mobile station Downlink transport format (transmission form, ie, allocation of physical resource blocks) for modulating each data based on PRB information usable by the apparatus, buffer status, scheduling information input from higher layer 108, etc. And modulation scheme and coding scheme), HARQ retransmission control, and scheduling information used for downlink. The scheduling information used for downlink scheduling is output to the data control unit 101.

Further, in uplink scheduling, the scheduling unit 104 estimates the uplink channel state (radio channel state) output from the channel estimation unit 105, the resource allocation request from the mobile station device 200, and each mobile station device 200. Based on the available PRB information, scheduling information input from the higher layer 108, etc., an uplink transport format for modulating each data (transmission form, ie, physical resource block allocation and modulation scheme and Encoding information and the like, and scheduling information used for uplink scheduling. Scheduling information used for uplink scheduling is output to the data control unit 101.

Also, the scheduling unit 104 maps the downlink logical channel input from the higher layer 108 to the transport channel, and outputs it to the data control unit 101. In addition, the scheduling unit 104 processes the control data and the transport channel acquired in the uplink input from the data extraction unit 107 as necessary, maps them to the uplink logical channel, and outputs them to the upper layer 108. To do.

The channel estimation unit 105 estimates an uplink channel state from an uplink demodulation reference signal (DRS: Demodulation Reference Signal) for demodulation of uplink data, and outputs the estimation result to the reception data demodulation unit 106. . Further, in order to perform uplink scheduling, an uplink channel state is estimated from an uplink measurement reference signal (SRS: Sounding Reference Signal), and the estimation result is output to the scheduling section 104.

Received data demodulator 106 also serves as an OFDM demodulator and / or DFT-Spread-OFDM (DFT-S-OFDM) demodulator that demodulates received data modulated in the OFDM scheme and / or SC-FDMA scheme. Yes. Based on the uplink channel state estimation result input from the channel estimation unit 105, the reception data demodulation unit 106 performs DFT conversion, subcarrier mapping, IFFT conversion, filtering, and the like on the modulation data input from the radio unit 103. Are subjected to demodulation processing and output to the data extraction unit 107.

The data extraction unit 107 confirms the correctness of the data input from the reception data demodulation unit 106 and outputs a confirmation result (positive signal ACK / negative signal NACK) to the scheduling unit 104. The data extraction unit 107 separates the data input from the reception data demodulation unit 106 into a transport channel and physical layer control data, and outputs the data to the scheduling unit 104. The separated control data includes channel state information CSI notified from the mobile station apparatus 200, downlink channel quality identifier CQI, precoding matrix identifier PMI, rank identifier RI, HARQ control information, scheduling request, and the like. include.

The upper layer 108 performs processing of a packet data integration protocol (PDCP: Packet Data Convergence Protocol) layer, a radio link control (RLC: Radio Link Control) layer, and a radio resource control (RRC: Radio Resource Control) layer. The upper layer 108 integrates and controls the processing units of the lower layer, so the upper layer 108, the scheduling unit 104, the antenna 109, the radio unit 103, the channel estimation unit 105, the received data demodulation unit 106, the data control unit 101, There is an interface between the transmission data modulation unit 102 and the data extraction unit 107 (not shown).

The upper layer 108 has a radio resource control unit 110 (also referred to as a control unit). Further, the radio resource control unit 110 manages various setting information, system information, paging control, communication state management of each mobile station device, mobility management such as handover, management of buffer status for each mobile station device, Management of unicast and multicast bearer connection settings, management of mobile station identifiers (UEID), and the like are performed. The upper layer 108 exchanges information with another base station apparatus and information with an upper node.

[Configuration of mobile station device]
FIG. 3 is a block diagram showing a schematic configuration of the mobile station apparatus 200 according to the embodiment of the present invention. The mobile station apparatus 200 includes a data control unit 201, a transmission data modulation unit 202, a radio unit 203, a scheduling unit 204, a channel estimation unit 205, a reception data demodulation unit 206, a data extraction unit 207, and an upper layer. 208 and an antenna 209. The data control unit 201, transmission data modulation unit 202, radio unit 203, scheduling unit 204, higher layer 208, and antenna 209 constitute a transmission unit, and the radio unit 203, scheduling unit 204, channel estimation unit 205, received data demodulation unit Unit 206, data extraction unit 207, upper layer 208, and antenna 209 constitute a reception unit.

The data control unit 201, the transmission data modulation unit 202, and the radio unit 203 perform processing of the uplink physical layer. The radio unit 203, the channel estimation unit 205, the received data demodulation unit 206, and the data extraction unit 207 perform downlink physical layer processing.

The data control unit 201 receives the transport channel from the scheduling unit 204. The transport channel and the signal and channel generated in the physical layer are mapped to the physical channel based on the scheduling information input from the scheduling unit 204. Each piece of data mapped in this way is output to transmission data modulation section 202.

The transmission data modulation unit 202 modulates the transmission data into the OFDM scheme and / or the SC-FDMA scheme. The transmission data modulation unit 202 performs data modulation, DFT (Discrete Fourier Transform) processing, subcarrier mapping, IFFT (Inverse Fast Fourier Transform) processing, CP insertion, filtering, and other signals on the data input from the data control unit 201. Processing is performed, transmission data is generated, and output to the wireless unit 203.

The radio unit 203 up-converts the modulation data input from the transmission data modulation unit 202 to a radio frequency to generate a radio signal, and transmits the radio signal to the base station apparatus 100 via the antenna 209. Radio section 203 receives a radio signal modulated with downlink data from base station apparatus 100 via antenna 209, down-converts it to a baseband signal, and receives the received data as channel estimation section 205. And output to the received data demodulation section 206.

The scheduling unit 204 performs processing of a medium access control (MAC: Medium Access Control) layer. The scheduling unit 104 performs mapping between logical channels and transport channels, downlink and uplink scheduling (HARQ processing, selection of transport format, etc.), and the like. Since the scheduling unit 204 controls the processing units of each physical layer in an integrated manner, the scheduling unit 204, the antenna 209, the data control unit 201, the transmission data modulation unit 202, the channel estimation unit 205, the reception data demodulation unit 206, the data There is an interface between the extraction unit 207 and the wireless unit 203 (not shown).

In downlink scheduling, the scheduling unit 204 controls reception of transport channels, physical signals, and physical channels based on scheduling information (transport format and HARQ retransmission information) from the base station apparatus 100 and the upper layer 208, and the like. Scheduling information used for HARQ retransmission control and downlink scheduling is generated. The scheduling information used for downlink scheduling is output to the data control unit 201.

In uplink scheduling, the scheduling unit 204 receives the uplink buffer status input from the higher layer 208 and uplink scheduling information from the base station apparatus 100 input from the data extraction unit 207 (transport format and HARQ retransmission). Information), and scheduling processing for mapping the uplink logical channel input from the upper layer 208 to the transport channel and the uplink scheduling based on the scheduling information input from the upper layer 208, etc. Scheduling information to be generated is generated. Note that the information notified from the base station apparatus 100 is used for the uplink transport format. The scheduling information is output to the data control unit 201.

Also, the scheduling unit 204 maps the uplink logical channel input from the higher layer 208 to the transport channel, and outputs it to the data control unit 201. Further, the scheduling unit 204 receives the downlink channel state information CSI input from the channel estimation unit 205, the downlink channel quality identifier CQI, the precoding matrix identifier PMI, the rank identifier RI, and the data extraction unit 207. The confirmation result of the CRC check is also output to the data control unit 201. In addition, the scheduling unit 204 processes the control data and the transport channel acquired in the downlink input from the data extraction unit 207 as necessary, maps them to the downlink logical channel, and outputs them to the upper layer 208. To do.

The channel estimation unit 205 estimates the downlink channel state from the downlink reference signal (RS) and demodulates the downlink data, and outputs the estimation result to the reception data demodulation unit 206. Further, the channel estimation unit 205 estimates the downlink channel state from the downlink reference signal (RS) in order to notify the base station apparatus 100 of the estimation result of the downlink channel state (radio channel state), This estimation result is output to scheduling section 204 as downlink channel state information CSI, downlink channel quality identifier CQI, precoding matrix identifier PMI, and rank identifier RI.

Received data demodulation section 206 demodulates received data modulated by the OFDM method. Reception data demodulation section 206 performs demodulation processing on the modulated data input from radio section 203 based on the downlink channel state estimation result input from channel estimation section 205 and outputs the result to data extraction section 207. To do.

The data extraction unit 207 performs a CRC check on the data input from the reception data demodulation unit 206, confirms the correctness and outputs a confirmation result (acknowledgment ACK / negative response NACK) to the scheduling unit 204. The data extraction unit 207 separates the data input from the reception data demodulation unit 206 into transport channel and physical layer control data, and outputs the data to the scheduling unit 204. The separated control data includes scheduling information such as downlink or uplink resource allocation and uplink HARQ control information.

The upper layer 208 performs processing of a packet data integration protocol (PDCP: Packet Data Convergence Protocol) layer, a radio link control (RLC: Radio Link Control) layer, and a radio resource control (RRC: Radio Resource Control) layer. The upper layer 208 integrates and controls the processing units of the lower layer, so that the upper layer 208, the scheduling unit 204, the antenna 209, the data control unit 201, the transmission data modulation unit 202, the channel estimation unit 205, the reception data demodulation unit 206, an interface between the data extraction unit 207 and the radio unit 203 exists (not shown).

The upper layer 208 has a radio resource control unit 210 (also referred to as a control unit). The radio resource control unit 210 manages various setting information, system information, paging control, own station communication status, mobility management such as handover, buffer status management, unicast and multicast bearer connection setting. Management and management of mobile station identifier (UEID).

(First embodiment)
Next, a first embodiment in a mobile communication system using the base station apparatus 100 and the mobile station apparatus 200 will be described. In the first embodiment, the base station apparatus uses the first physical uplink control channel (PUCCH) for the mobile station apparatus to transmit the first control information, and the radio resource control signal (RRC signaling). Then, the mobile station apparatus continuously and permanently allocates the second physical uplink control channel (PUCCH) for transmitting the second control information to the physical downlink control channel. (PDCCH) is dynamically allocated to the mobile station apparatus, and the mobile station apparatus assigns the first control information to the first control information when the physical uplink shared channel (PUSCH) is allocated by the base station apparatus. Second physical information is shared in the same subframe using the physical uplink shared channel (PUSCH). It can be transmitted to the base station apparatus.

Here, the first control information includes channel state information (CSI) indicating a downlink channel state transmitted (feedback) from the mobile station apparatus to the base station apparatus. Further, the first control information includes a scheduling request (SR) for requesting allocation of resources for the mobile station apparatus to transmit uplink data. The first control information includes a channel quality identifier (CQI). The first control information includes a rank identifier (RI). The first control information includes a precoding matrix identifier (PMI). Also, the first control information may include control information in HARQ for the downlink transport block transmitted with resources continuously allocated by the base station apparatus.

Also, the second control information includes control information (control signal) in HARQ for the PDCCH and / or downlink transport block. That is, the second control information includes control information in HARQ for the PDCCH channel and / or downlink transport block transmitted with resources dynamically allocated by the base station apparatus, and the second control information The information may include control information in HARQ with respect to a downlink transport block transmitted using resources continuously allocated by the base station apparatus. Here, the control information in HARQ is information indicating ACK / NACK and / or information indicating DTX for the PDCCH and / or downlink transport block. DTX is information indicating that the mobile station device has not detected the PDCCH from the base station device. In the present embodiment, the first PUCCH assigned persistently (permanently) indicates, for example, a PUCCH assigned at an interval of about 100 ms by RRC signaling from the base station apparatus (persistent: persistent) The base station apparatus and the mobile station apparatus secure a PUCCH allocated by RRC signaling for a certain period (for example, about 100 ms), and transmit / receive data using the allocated PUCCH. I do. On the other hand, the dynamically assigned second PUCCH indicates, for example, a PUCCH associated with the PDCCH from the base station apparatus and assigned at an interval of about 1 ms (also called PUCCH assigned to dynamic: Dynamic). )

Hereinafter, in the present embodiment, the frequency band is defined by the bandwidth (Hz), but may be defined by the number of resource blocks (RB) configured by the frequency and time. The carrier element in the present embodiment refers to a (narrowband) frequency band used when a base station apparatus and a mobile station apparatus communicate in a mobile communication system having a (wideband) system band (frequency band). Show. The base station apparatus and the mobile station apparatus aggregate a plurality of carrier elements (for example, five frequency bands having a bandwidth of 20 MHz) (frequency band aggregation: carrier aggregation), thereby (system wide band) system band (for example, , A high-speed data communication (information transmission / reception) can be realized by constructing a DL system band / UL system band having a bandwidth of 100 MHz and using a plurality of carrier elements in combination.

The carrier element is a (narrowband) frequency band (for example, 20 MHz bandwidth) that constitutes this (wideband) system band (for example, DL system band / UL system band having a bandwidth of 100 MHz) (Frequency band) shows each one. That is, the downlink carrier element has a part of the frequency band that can be used when the base station apparatus and the mobile station apparatus transmit and receive downlink information, and the uplink carrier element is The base station device and the mobile station device have a part of the bandwidth that can be used when uplink information is transmitted and received. The carrier element may be defined as a unit in which a specific physical channel (for example, PDCCH, PUCCH, etc.) is configured.

Further, the carrier element may be arranged in a continuous frequency band or a discontinuous frequency band, and the base station apparatus and the mobile station apparatus are continuous and / or discontinuous frequency bands. By aggregating a plurality of carrier elements, a wide system band (frequency band) is formed, and by using a plurality of carrier elements in combination, high-speed data communication (information transmission / reception) can be realized. . Furthermore, the downlink frequency band (DL system band, DL system bandwidth) configured by the carrier element and the downlink frequency band (UL system band, UL system bandwidth) do not have to be the same bandwidth, The base station apparatus and the mobile station apparatus can perform communication using downlink frequency bands and downlink frequency bands having different bandwidths configured by carrier elements (asymmetric frequency band aggregation described above: Asymmetric carrier aggregation).

FIG. 4 is a diagram illustrating an example of a mobile communication system to which the first embodiment can be applied. Hereinafter, the first embodiment will be described with respect to an asymmetric frequency band-aggregated mobile communication system as shown in FIG. 4, but this embodiment is also applicable to a symmetric frequency band-aggregated mobile communication system. FIG. 4 shows, as an example for explaining the present embodiment, frequency bands (DL system bands) used for downlink communication having a bandwidth of 80 MHz and four downlinks each having a bandwidth of 20 MHz. It shows that it is composed of carrier elements (DCC1, DCC2, DCC3, DCC4). Further, as an example, the frequency band (UL system band) used for uplink communication having a bandwidth of 40 MHz is determined by two uplink carrier elements (UCC1, UCC2) each having a bandwidth of 20 MHz. It shows that it is configured. In FIG. 4, downlink / uplink channels such as PDCCH, PDSCH, PUCCH, PUSCH and the like are arranged in each downlink / uplink carrier element. Here, in FIG. 4, there may be a downlink / uplink carrier element in which any of the downlink / uplink channels such as PDCCH, PDSCH, PUCCH, and PUSCH is not arranged.

In FIG. 4, the base station apparatus continuously allocates the first PUCCH (PUCCH indicated by a horizontal line) for transmitting the first control information using RRC signaling. Is shown. Further, the base station apparatus indicates second PUCCH (PUCCH indicated by hatched lines, grid lines, and mesh lines, respectively) for transmitting the second control information, and PDCCH (represented by hatched lines, grid lines, and network lines, respectively). PDCCH) is dynamically allocated in association with PDCCH.

For example, the base station apparatus can arrange one PDCCH resource (PDCCH indicated by diagonal lines) or a plurality of PDCCHs (PDCCH indicated by grid lines and network lines) arranged in one downlink carrier element (PDCCH indicated by grid lines and network lines). In association with the position in the PDCCH resource area), the mobile station apparatus can dynamically allocate (instruct) the second PUCCH for transmitting the second control information (arranged in any area of the PUCCH resource area) The second PUCCH can be used to indicate whether to transmit the second control information). Here, the PUCCH resource (PUCCH resource region) is set to be specific to a cell or mobile station device, for example, using a broadcast channel or RRC signaling by a base station device. That is, depending on how one or more PDCCHs arranged in one downlink carrier element are arranged in a PDCCH resource (PDCCH resource region), the mobile station apparatus The second control information can be arranged on the PUCCH in the PUCCH resource (PUCCH resource region) and transmitted to the base station apparatus. Here, the correspondence between one or a plurality of PDCCHs arranged in one carrier element of the downlink and each PUCCH is, for example, the CCE index at the head of the CCE constituting each PDCCH, Defined by associating PUCCH indexes (in FIG. 4, the CCE index at the head of the CCE constituting the PDCCH indicated by the hatched line, the PUCCH index indicated by the hatched line, the head of the CCE constituting the PDCCH indicated by the grid line The CCE index of PCECH indicated by a grid line and the CCE index at the head of the CCE constituting the PDCCH indicated by the network line correspond to the PUCCH index indicated by the network line).

In FIG. 4, the base station apparatus allocates a plurality of PDSCHs using a plurality of PDCCHs, and transmits control information (resource allocation information, MCS information, HARQ processing information, etc.) for transmitting a plurality of downlink transport blocks. Transmit to the mobile station apparatus (using a plurality of PDCCHs, a plurality of PDSCHs are allocated to the mobile station apparatus). Further, the base station apparatus transmits a plurality of downlink transport blocks to the mobile station apparatus in the same subframe using a plurality of PDSCHs. In FIG. 4, as an example, the base station apparatus assigns the PDSCH arranged in DCC1 using the PDCCH arranged in DCC1 (PDCCH indicated by oblique lines), and assigns the PDCCH arranged in DCC3 (each grid line, It is shown that PDSCH allocated to DCC3 and DCC4 is assigned using PDCCH indicated by a network line). Furthermore, it is shown that the base station apparatus can transmit (up to three) downlink transport blocks to the mobile station apparatus in the same subframe using PDSCH arranged in DCC1, DCC3, and DCC4.

The mobile station apparatus transmits the first control information to the base station apparatus using the first PUCCH (PUCCH indicated by a horizontal line) continuously assigned by RRC signaling. For example, the mobile station apparatus can periodically transmit channel state information (first control information) to the base station apparatus using the first PUCCH that is continuously assigned. Also, for example, when the mobile station apparatus requests the allocation of resources for transmitting uplink data, a scheduling request (first control information) is made using the first PUCCH allocated continuously. Can be transmitted to the base station apparatus.

Furthermore, the mobile station apparatus uses the second PUCCH (PUCCH indicated by diagonal lines, grid lines, and network lines, respectively) dynamically allocated in association with the PDCCH, and sends the second control information to the base station apparatus. Send. For example, the mobile station apparatus uses the dynamically assigned second PUCCH to transmit control information (second control information) in HARQ for a plurality of PDCCHs and / or a plurality of downlink transport blocks to a band. It can be transmitted to the base station apparatus in a ring (bundling) or multiplexed (using multiple bits).

That is, when the mobile station apparatus bundles control information (second control information) in HARQ and transmits it to the base station apparatus, control information in HARQ for each of a plurality of PDCCHs and / or a plurality of downlink transport blocks. Thus, control information in one HARQ can be calculated (generated), and the calculated control information in one HARQ can be transmitted to the base station apparatus. For example, the mobile station apparatus can calculate a logical sum from information indicating HARQ ACK / NACK for each of a plurality of downlink transport blocks, and transmit the logical sum to the base station apparatus as information indicating one ACK / NACK. In FIG. 4, the mobile station apparatus uses information logic indicating HARQ ACK / NACK for each of a plurality of downlink transport blocks transmitted in the same subframe using the PDSCH of DCC1, DCC2, and DCC4 from the base station apparatus. The sum is calculated and transmitted to the base station apparatus as information indicating one ACK / NACK.

Also, when the mobile station apparatus multiplexes HARQ control information (second control information) and transmits the multiplexed information to the base station apparatus, the control information in HARQ for each of a plurality of PDCCHs and / or a plurality of downlink transport blocks is transmitted. , Can be transmitted to the base station apparatus using a plurality of control information expressing all combinations (transmitted to the base station apparatus using a plurality of control information below information necessary to represent all combinations You may do it.) For example, the mobile station apparatus can express all combinations of information indicating ACK / NACK of HARQ for each of a plurality of downlink transport blocks using a plurality of bits, and can transmit to the base station apparatus. In FIG. 4, the mobile station apparatus transmits all combinations of control information in HARQ for each of a plurality of PDCCHs and / or a plurality of downlink transport blocks transmitted by the DCC1, DCC2, and DCC4 from the base station apparatus. It expresses using, and has shown transmitting to a base station apparatus.

Here, when bundling or multiplexing and transmitting control information (second control information) in HARQ to the base station apparatus, the mobile station apparatus indicates a plurality of PUCCHs (indicated by diagonal lines, grid lines, and network lines, respectively). Transmitted to the base station apparatus using one of the PUCCHs (for example, transmitting 1-bit or 2-bit information to the base station apparatus using any PUCCH of the plurality of PUCCHs) . At this time, the mobile station apparatus has a plurality of PUCCHs defined according to how a plurality of PDCCHs are arranged in a PDCCH resource (PDCCH resource region) (position and number of PDCCH resources in a plurality of PDCCHs). Depending on which PUCCH is used to transmit information, it can be transmitted to the base station apparatus including information for several bits (in which PUCCH can be allocated, which PUCCH can be transmitted). Depending on whether the information is transmitted using the area, it is possible to further transmit information including several bits to the base station apparatus). For example, in FIG. 4, when the mobile station apparatus can transmit 2-bit information (four types of information) on each of three PUCCHs (PUCCH indicated by diagonal lines, grid lines, and diagonal lines), A total of 12 types of information can be transmitted to the base station apparatus depending on which PUCCH in the PUCCH is used (by performing channel selection for three PUCCHs). By transmitting information in this way, the mobile station apparatus can transmit more information to the base station apparatus. For example, the mobile station apparatus can transmit a plurality of PDCCHs transmitted from the base station apparatus. Thus, more combinations expressing information indicating which PDCCH can be received (detected) and control information (second control information) in HARQ can be transmitted to the base station apparatus.

FIG. 5 shows a first PUCCH (PUCCH indicated by a horizontal line) that the base station apparatus continuously assigns by RRC signaling and a second PUCCH that is dynamically assigned in association with the PDCCH (hatched lines, grid lines, and networks, respectively). It is a figure which shows notionally (PUCCH shown by a line). FIG. 5 shows, as an example, that there are two PUCCH resources (PUCCH resource regions) each having a size of “3 × 4 = 12” in each uplink carrier element (UCC1, UCC2). (Indicates that there are PUCCH resources having a total size of “24” in two PUCCHs distributed and arranged at both end portions (edge portions) of UCC1 and UCC2). In the present embodiment, PUCCH and PUSCH resources allocated by the base station apparatus include frequency resources, time resources, and code resources.

FIG. 5 shows that the base station apparatus continuously assigns a PUCCH (PUCCH indicated by a horizontal line) having a size of “3” arranged in the UCC 2 as the first PUCCH. Further, the base station apparatus dynamically allocates PUCCHs having a size of “1” (PUCCHs indicated by diagonal lines, grid lines, and network lines, respectively) arranged in UCC1 and UCC2 as second PUCCHs. It shows that. The mobile station apparatus uses the first PUCCH arranged in the UCC2 to use the first control information, and uses any one of the second PUCCH arranged in the UCC1 and UCC2 to use the second control information. Can be transmitted to the base station apparatus together in the same subframe (a plurality of PUCCHs can be transmitted simultaneously). For example, in FIG. 5, the mobile station apparatus uses the first PUCCH arranged in UCC2 to transmit channel state information (first control information) to either one of the second PUCCH arranged in UCC1 or UCC2. The HARQ control information (second control information) can be simultaneously transmitted to the base station apparatus using the PUCCH. In addition, for example, the mobile station apparatus uses the first PUCCH arranged in UCC2 to request a scheduling request (first control information), and either PUCCH of the second PUCCH arranged in UCC1 or UCC2. It is possible to simultaneously transmit control information (second control information) in HARQ to the base station apparatus.

FIG. 6 shows the operation of the mobile station apparatus when the physical uplink shared channel (PUSCH) is allocated by the base station apparatus when the mobile station apparatus transmits the first control information and the second control information. FIG. Hereinafter, in this embodiment, in order to make the explanation easy to understand, the mobile station apparatus uses the PUCCH indicated by the oblique lines (second PUCCH indicated by the oblique lines in FIG. 5) arranged in the UCC 1 to perform the second operation. Control information is transmitted to the base station apparatus.

In FIG. 6, the mobile station apparatus uses the first PUCCH (PUCCH indicated by a horizontal line) arranged in UCC2 (permanently assigned) to assign first control information (dynamically assigned). When transmitting the second control information using the second PUCCH arranged in UCC1, the base station apparatus was assigned the PUSCH arranged in UCC1 (PUSCH indicated by a dotted pattern) In this case, first control information is transmitted using the first PUCCH, and second control information is transmitted using the allocated PUSCH to the base station apparatus together in the same subframe. That is, the mobile station apparatus is also referred to as placing the second control information to be transmitted using the dynamically allocated second PUCCH on the PUSCH arranged in UCC1 (piggyback or piggy back). Then, PUSCH and PUCCH are transmitted simultaneously.

For example, in FIG. 6, the mobile station apparatus uses channel information (first control information) using the first PUCCH arranged in UCC2 and HARQ using the second PUCCH arranged in UCC1. When transmitting the control information (second control information) in the case where the PUSCH arranged in the UCC1 is assigned by the base station apparatus, the first PUCCH is used to transmit the channel state information (first Control information) can be simultaneously transmitted using HASCH control information (second control information). Further, the mobile station apparatus uses the first PUCCH arranged in the UCC2 to make a scheduling request (first control information), and uses the second PUCCH arranged in the UCC1 to control information in the HARQ (first control information). 2), when a PUSCH arranged in UCC1 is assigned by the base station apparatus, a scheduling request (first control information) is assigned using the first PUCCH. Control information (second control information) in HARQ can be simultaneously transmitted using the received PUSCH.

Similarly, FIG. 7 is a diagram for explaining the operation of the mobile station apparatus when PUSCH is allocated by the base station apparatus when the mobile station apparatus transmits the first control information and the second control information. It is. In FIG. 7, the mobile station apparatus uses the first PUCCH (PUCCH indicated by a horizontal line) arranged in UCC2 (permanently assigned) to assign first control information (dynamically assigned). When transmitting the second control information using the second PUCCH arranged in UCC1, the PUSCH arranged in UCC2 (PUSCH indicated by a dotted pattern) was allocated by the base station apparatus In this case, it is possible to transmit the first control information using the first PUCCH and the second control information using the allocated PUSCH to the base station apparatus together in the same subframe. That is, the mobile station apparatus arranges the second control information to be transmitted using the dynamically allocated second PUCCH in the PUSCH arranged in UCC2, and performs simultaneous transmission of PUSCH and PUCCH. Do.

Here, in this embodiment, in order to make the explanation easy to understand, the mobile station apparatus uses the PUCCH (second PUCCH indicated by hatching in FIG. 5) arranged in the UCC 1 to transmit the second control information. The mobile station apparatus performs the same operation even when the mobile station apparatus transmits the second control information to the base station apparatus using any PUCCH arranged in UCC1 and UCC2. Of course.

FIG. 8 shows an example when the mobile station apparatus places both the second control information and the uplink data (UL-SCH) on the PUSCH allocated by the base station apparatus. In FIG. 8, the second control information (shown in black), uplink data (UL-SCH) (shown in white), and pilot signal (RS) (vertical) are assigned to the PUSCH assigned by the base station apparatus. (Indicated by a line).

As shown in FIG. 8, when the mobile station apparatus arranges the second control information and the uplink data (UL-SCH) on the allocated PUSCH, first, the mobile station apparatus allocates the uplink data (UL-SCH) to the time. After the uplink data (UL-SCH) is arranged in the axial direction (the direction of the row index in the matrix before DFT) and the uplink data (UL-SCH) is arranged in all regions (for example, all SC-FDMA symbols) of the time axis method (RS (Uplink data (UL-SCH) is arranged in 12 SC-FDMA symbols excluding), and arranged in the frequency axis direction (column index direction in the matrix before DFT) (time first mapping) Called). This matrix has the same configuration as the arrangement of resource elements, but is finally spread in the frequency direction because DFT processing is performed on this matrix. Subsequently, the mobile station apparatus arranges the second control information adjacent to the RS as shown in FIG. At this time, the second control information is arranged by overwriting the uplink data (UL-SCH) (also referred to as arranging the second control information by puncturing the uplink data (UL-SCH)). ) In FIG. 8, as an example, the second control information is an area that can be arranged (for example, four areas adjacent to the RS, 14 areas in the time axis direction, the third from the smaller time axis, 5th, 10th, and 12th areas), the area where the second control information is arranged (the second control information to be transmitted by the mobile station apparatus). The number of areas to be arranged) may be included in the PDCCH (uplink transmission permission signal) from the base station apparatus and instructed to the mobile station apparatus.

For example, the base station apparatus sets information “2” as a PDCCH (uplink transmission permission signal) as an area where the mobile station apparatus arranges the second control information (the number of areas where the second control information to be transmitted is arranged). ). The mobile station apparatus that has received this information secures a size of “2” (for example, 2SC-FDMA symbol) as an area for arranging the second control information, and arranges the second control information in the reserved area. To the base station apparatus. For example, when the mobile station apparatus arranges and transmits control information (second control information) in HARQ for the PDCCH and / or downlink transport block in the allocated PUSCH, the base station apparatus Information indicating the (total) number of PDCCHs and / or PDSCHs transmitted in the same subframe can be transmitted (instructed) to the mobile station apparatus. The mobile station apparatus secures the PUSCH area and secures the second control information according to the information indicating the (total) number of PDCCH and / or PDSCH transmitted from the base station apparatus and transmitted in the same subframe. It arrange | positions to PUSCH and transmits to a base station apparatus. In this way, the base station apparatus and the mobile station apparatus transmit and receive information indicating the (total) number of PDCCHs and / or PDSCHs transmitted in the same subframe, so that the mobile station apparatus arranges the second control information. It is possible to flexibly control the PUSCH area to be used, and the PUSCH area can be used effectively.

In addition, the mobile station apparatus arranges the second control signal adjacent to the RS, so that deterioration in the accuracy of combining the second control signal due to the channel estimation error in the base station apparatus can be reduced. Can have strong resistance to fluctuations. In addition, the mobile station apparatus arranges both the second control information and the uplink data (UL-SCH) on the PUSCH and transmits the PUSCH to the base station apparatus using the pre-defined arrangement method as described above. There is no need to receive an arrangement instruction from the apparatus, and the second control information and uplink data (UL-SCH) can be simultaneously transmitted by efficiently using downlink radio resources.

Here, in the present embodiment, even if the control information in HARQ for the downlink transport block transmitted with resources continuously allocated by the base station apparatus is included in the first control information, It may be included in the control information. When the control information in HARQ for the downlink transport block transmitted with the resource continuously allocated by the base station apparatus is the first control information, the resource is dynamically allocated with the continuously allocated resource. Therefore, it is possible to separate management from the assigned resources, and it is possible to easily estimate overhead in the base station apparatus. On the other hand, when the control information in HARQ for the downlink transport block transmitted by the resource continuously allocated by the base station apparatus is the second control information, the effect of multiplexing the control information in HARQ is obtained. It becomes possible.

As described above, in the mobile communication system in which the base station apparatus and the mobile station apparatus perform communication in a wide frequency band using the carrier element in combination, the first PUCCH that is continuously assigned is used. When the mobile station apparatus that uses the first control information and transmits the second control information using the dynamically allocated second PUCCH has been assigned the PUSCH by the base station apparatus By transmitting the first control information using the first PUCCH and the second control information using the allocated PUSCH to the base station apparatus, the transmission power in the mobile station apparatus is kept low. It becomes possible to simultaneously transmit data (information) by a plurality of PUSCHs and PUCCHs. When the mobile station apparatus arranges the second control information that was to be transmitted on the dynamically allocated second PUCCH on the PUSCH allocated by the base station apparatus, and performs simultaneous transmission of PUSCH and PUCCH. The mobile station apparatus can reduce (limit) the number of uplink channels transmitted to the base station apparatus at the same time, and the transmission power in the mobile station apparatus can be kept low (the mobile station apparatus uses PUCCH). By performing simultaneous transmission with reduced (restricted) transmission, it is possible to further reduce transmission power).

(Second Embodiment)
Next, a second embodiment of the present invention will be described. In the second embodiment, the base station apparatus continuously allocates a plurality of first PUCCHs for transmitting the first control information to the same subframe using RRC signaling. Can do. Moreover, the base station apparatus can continuously allocate a plurality of first PUCCHs for transmitting each of a plurality of first control information to the same subframe using RRC signaling. . The rest is the same as in the first embodiment.

FIG. 9 illustrates a plurality of first PUCCHs (PUCCHs indicated by solid lines and horizontal lines) that are continuously allocated by the RRC signaling by the base station apparatus, and second PUCCHs that are dynamically allocated in association with the PDCCHs (each hatched line). , PUCCH indicated by lattice lines and mesh lines). In FIG. 9, the base station apparatus continuously allocates PUCCHs having a size of “3” (each filled and PUCCH indicated by a horizontal line) arranged in UCC1 and UCC2 as the first PUCCH. It is shown that. Further, the base station apparatus dynamically allocates PUCCHs having a size of “1” (PUCCHs indicated by diagonal lines, grid lines, and network lines, respectively) arranged in UCC1 and UCC2 as second PUCCHs. It shows that. Hereinafter, also in the second embodiment, in order to make the explanation easy to understand, the mobile station apparatus uses the second PUCCH indicated by hatching arranged in the UCC 1 to transmit the second control information to the base station apparatus. Will be sent to.

In FIG. 9, the mobile station apparatus transmits the first control information to the base station apparatus using a plurality of first PUCCHs arranged in UCC1 and UCC2 (persistently allocated). For example, the mobile station apparatus can transmit joint control-encoded first control information to the base station apparatus using a plurality of first PUCCHs. The mobile station apparatus transmits the first control information to the base station apparatus by performing code division multiplexing (CDM) or frequency division multiplexing (FDM) on the plurality of first PUCCHs. be able to. The plurality of first PUCCHs may be transmitted by frequency division multiplexing (FDM) across uplink carrier elements (UCC1, UCC2). That is, the base station apparatus can continuously allocate a plurality of first PUCCHs for the mobile station apparatus to transmit the first control information to the same subframe. In FIG. 9, the mobile station apparatus uses the first PUCCH arranged in UCC1 and UCC2 to perform first control information, and uses the second PUCCH arranged in UCC1 to perform second control. It shows that information is transmitted to the base station apparatus together in the same subframe (simultaneous transmission of a plurality of PUCCHs is performed).

For example, in FIG. 9, the mobile station apparatus uses a plurality of first PUCCHs arranged in UCC1 and UCC2 to obtain channel state information (first control information), and uses a second PUCCH arranged in UCC1. It is possible to simultaneously transmit control information (second control information) in HARQ. Also, for example, the mobile station apparatus uses a plurality of first PUCCHs arranged in UCC1 and UCC2 to make a scheduling request (first control information) and uses a second PUCCH arranged in UCC1. Control information (second control information) in HARQ can be transmitted simultaneously.

In FIG. 9, the mobile station apparatus uses a plurality of first PUCCHs arranged in UCC1 and UCC2 (permanently assigned), and transmits a plurality of pieces of first control information to the base station apparatus. It can also be sent. For example, the mobile station apparatus can independently transmit each of the plurality of first control information to the base station apparatus using the plurality of first PUCCHs. That is, the base station apparatus can continuously allocate a plurality of first PUCCHs for the mobile station apparatus to transmit each of the plurality of first control information to the same subframe.

Here, the mobile station apparatus uses the first and / or second PUCCH arranged in UCC1 and uses the first control information and the second control information, and uses the first PUCCH arranged in UCC2. Thus, the first control information can be transmitted to the base station apparatus together in the same subframe (simultaneous transmission of a plurality of PUCCHs). When the mobile station apparatus transmits the first control information and the second control information together using the first and / or second PUCCH arranged in the UCC1, for example, the first control information and The second control information is transmitted to the base station apparatus by time division multiplexing (TDM), joint coding (joint coding), code division multiplexing (CDM), or frequency division multiplexing (FDM).

For example, in FIG. 9, the mobile station apparatus uses the first and / or second PUCCH arranged in UCC1 to control channel state information (first control information) and control information in HARQ (second control information). ) Can be simultaneously transmitted using the first PUCCH arranged in the UCC 2, channel state information (first control information). Here, the channel state information transmitted using the first and / or second PUCCH arranged in UCC1 can indicate, for example, the channel state of DCC1 and DCC2 in FIG. 4, and is arranged in UCC2. The channel state information transmitted using the first PUCCH can indicate, for example, the channel states of DCC3 and DCC4 in FIG. Here, the channel state information transmitted by the mobile station apparatus may be other than this, and which uplink carrier element is used to transmit the channel state information of which downlink carrier element (downlink carrier element and uplink carrier element). The carrier element correspondence) can be set to be cell specific or mobile station device specific by a broadcast channel from the base station device or RRC signaling.

Further, for example, the mobile station apparatus uses the first and / or second PUCCH arranged in the UCC 1 to send a scheduling request (first control information) and control information (second control information) in HARQ. A scheduling request (first control information) can be transmitted simultaneously using the first PUCCH arranged in UCC2. Here, the scheduling request (first control information) transmitted using the first and / or second PUCCH arranged in UCC1 transmits uplink data by UCC1 and UCC2 in FIG. 4, for example. 4 and the scheduling request (first control information) transmitted using the first PUCCH arranged in the UCC 2 can also be used for UCC1 and UCC2 in FIG. An allocation of resources for transmission can be requested (ie, a scheduling request can request allocation of resources for all uplink carrier elements).

FIG. 10 is a diagram for explaining the operation of the mobile station apparatus when PUSCH is allocated by the base station apparatus when the mobile station apparatus transmits the first control information and the second control information. As described above, the mobile station apparatus transmits the second control information to the base station apparatus using the PUCCH indicated by the oblique lines (second PUCCH indicated by the oblique lines in FIG. 5) arranged in UCC1. I will do it.

In FIG. 10, the mobile station apparatus uses the plurality of first PUCCHs (each filled and PUCCH indicated by a horizontal line) arranged in UCC1 and UCC2 (permanently assigned) to obtain the first control information. When transmitting the second control information using the second PUCCH arranged in UCC1 (dynamically allocated), the PUSCH arranged in UCC1 (indicated by a dotted pattern) is transmitted by the base station apparatus. When the PUSCH) is allocated, the first control information using the plurality of first PUCCHs, the second control information using the allocated PUSCHs, and the base station are both used in the same subframe. Send to device. That is, the mobile station apparatus arranges (piggy back) the second control information to be transmitted using the dynamically allocated second PUCCH in the PUSCH arranged in the UCC1, and the PUSCH and the PUCCH. Are sent simultaneously.

For example, in FIG. 10, the mobile station apparatus uses a plurality of first PUCCHs arranged in UCC1 and UCC2 to obtain channel state information (first control information), and uses a second PUCCH arranged in UCC1. When the control information (second control information) in HARQ is used and the PUSCH arranged in UCC1 is allocated by the base station apparatus, a plurality of first PUCCH channels are used. Control information (second control information) in HARQ can be simultaneously transmitted using state information (first control information) and allocated PUSCH. That is, when the mobile station apparatus transmits HARQ control information (second control information) using the second PUCCH arranged in UCC1, the base station apparatus uses the PUSCH arranged in UCC1. When assigned, control information (second control information) in HARQ can be transmitted simultaneously with channel state information (first control information) using the assigned PUSCH.

Also, for example, the mobile station apparatus uses a plurality of first PUCCHs arranged in UCC1 and UCC2 to make a scheduling request (first control information) and uses a second PUCCH arranged in UCC1. When transmitting the control information (second control information) in HARQ, if a PUSCH arranged in UCC1 is allocated by the base station apparatus, a scheduling request (first PUCCH is used). 1 control information) and HARQ control information (second control information) can be simultaneously transmitted using the allocated PUSCH. That is, when the mobile station apparatus transmits HARQ control information (second control information) using the second PUCCH arranged in UCC1, the base station apparatus uses the PUSCH arranged in UCC1. When assigned, control information (second control information) in HARQ can be transmitted simultaneously with the scheduling request (first control information) using the assigned PUSCH.

Similarly, FIG. 11 shows the movement in the case where the PUSCH is allocated by the base station apparatus when the mobile station apparatus transmits the first control information and the second control information simultaneously using a plurality of PUCCHs. It is a figure explaining operation | movement of a station apparatus. In FIG. 11, the mobile station apparatus uses the first PUCCH (each filled and PUCCH indicated by a horizontal line) arranged in UCC1 and UCC2 (permanently assigned) to obtain first control information ( When transmitting the second control information using the second PUCCH arranged in the UCC1 (assigned dynamically), the PUSCH arranged in the UCC2 (PUSCH indicated by a dotted pattern) by the base station apparatus Is assigned, the first control information is transmitted using the plurality of first PUCCHs, and the second control information is transmitted to the base station apparatus using the assigned PUSCHs in the same subframe. . That is, the mobile station apparatus arranges the second control information to be transmitted using the dynamically allocated second PUCCH in the PUSCH arranged in UCC2, and performs simultaneous transmission of PUSCH and PUCCH. Do.

Also in this embodiment, even if the control information in HARQ for the downlink transport block transmitted with resources continuously allocated by the base station apparatus is included in the first control information, It may be included in the control information. When the control information in HARQ for the downlink transport block transmitted with the resource continuously allocated by the base station apparatus is the first control information, the resource is dynamically allocated with the continuously allocated resource. Therefore, it is possible to separate management from the assigned resources, and it is possible to easily estimate overhead in the base station apparatus. On the other hand, when the control information in HARQ for the downlink transport block transmitted by the resource continuously allocated by the base station apparatus is the second control information, the effect of multiplexing the control information in HARQ is obtained. It becomes possible.

As described above, in a mobile communication system in which a base station apparatus and a mobile station apparatus perform communication in a wide frequency band by using a carrier element in combination, a plurality of continuously and dynamically assigned When the mobile station apparatus that transmits the first control information and the second control information using the PUCCH has been assigned the PUSCH by the base station apparatus, the first PUCCH is used to Simultaneous transmission of data (information) using a plurality of PUSCHs and PUCCHs with low transmission power in the mobile station apparatus by transmitting the second control information to the base station apparatus using the allocated PUSCH. It becomes possible to do. When the mobile station apparatus arranges the second control information that was to be transmitted on the dynamically allocated second PUCCH on the PUSCH allocated by the base station apparatus, and performs simultaneous transmission of PUSCH and PUCCH. The mobile station apparatus can reduce (limit) the number of uplink channels transmitted to the base station apparatus at the same time, and the transmission power in the mobile station apparatus can be kept low (the mobile station apparatus uses PUCCH). By performing simultaneous transmission with reduced (restricted) transmission, it is possible to further reduce transmission power).

(Third embodiment)
Next, a third embodiment of the present invention will be described. In the third embodiment, the base station apparatus transmits to the mobile station apparatus transmission permission information that instructs transmission of all control information (first control information and second control information) using the allocated PUSCH. When the mobile station apparatus receives this transmission permission information from the base station apparatus, when the PUSCH is assigned by the base station apparatus, all the control information (first control information, second control information) Information) can be arranged on the allocated PUSCH and transmitted to the base station apparatus.

FIG. 12 is a diagram for explaining the operation of the mobile station apparatus when the PUSCH is allocated by the base station apparatus when the mobile station apparatus transmits the first control information and the second control information. . Hereinafter, also in this embodiment, in order to make the explanation easy to understand, the mobile station apparatus uses the PUCCH indicated by the oblique lines (second PUCCH indicated by the oblique lines in FIG. 5) arranged in the UCC 1 to 2 control information is transmitted to the base station apparatus.

In FIG. 12, the base station apparatus transmits to the mobile station apparatus transmission permission information instructing to transmit all control information (first control information and second control information) using the allocated PUSCH. This transmission permission information is included in, for example, RRC signaling or an uplink transmission permission signal and transmitted to the mobile station apparatus. When the mobile station apparatus that has received this transmission permission information transmits the first control information and the second control information, if the base station apparatus has been assigned PUSCH (PUSCH indicated by a dotted pattern), All the control information (first control information and second control) can be arranged in the allocated PUSCH and transmitted to the base station apparatus. In FIG. 12, the mobile station apparatus uses the first PUCCH arranged in UCC2 (persistently assigned) and first control information is arranged in UCC1 (dynamically allocated). When transmitting the second control information using the second PUCCH, if the PUSCH (PUSCH indicated by a dotted pattern) allocated to the UCC 1 is allocated by the base station apparatus, the allocated PUSCH It is shown that all the control information (first control information, second control information) is transmitted to the base station apparatus using. Here, even if the PUSCH arranged in the UCC 2 is assigned by the base station device, the mobile station device naturally operates in the same manner.

Similarly, FIG. 13 illustrates the operation of the mobile station apparatus when PUSCH is allocated by the base station apparatus when the mobile station apparatus transmits the first control information and the second control information. FIG. In FIG. 13, the base station apparatus transmits to the mobile station apparatus transmission permission information that instructs transmission of all control information (first control information and second control information) using the allocated PUSCH. When the mobile station apparatus that has received this transmission permission information transmits the first control information and the second control information, if the base station apparatus has been assigned PUSCH (PUSCH indicated by a dotted pattern), All the control information (first control information and second control) can be arranged in the allocated PUSCH and transmitted to the base station apparatus. In FIG. 13, the mobile station apparatus transmits the first control information and the second control information (using the first PUCCH and / or the second PUCCH allocated continuously and dynamically). If the PUSCH (PUSCH indicated by a dotted pattern) arranged in UCC1 has been allocated by the base station apparatus, all control information (first control information, second control information) is allocated using the allocated PUSCH. Control information) is transmitted to the base station apparatus. Here, even if the PUSCH arranged in the UCC 2 is assigned by the base station device, the mobile station device naturally operates in the same manner.

Here, also in this embodiment, in order to make the explanation easy to understand, the mobile station apparatus uses the PUCCH (second PUCCH indicated by hatching in FIG. 5) arranged in the UCC 1 to control the second control information. However, when the mobile station apparatus transmits the second control information to the base station apparatus using any PUCCH arranged in UCC1 and UCC2, the same operation is performed. Of course.

FIG. 14 shows an example when the mobile station apparatus arranges both the first control information, the second control information, and the uplink data (UL-SCH) on the PUSCH assigned by the base station apparatus. . In FIG. 14, the PUSCH allocated by the base station apparatus includes first control information (indicated by a joint coding) (indicated by a fine mesh line) and second control information (black paint). ), Uplink data (UL-SCH) (shown in white), and pilot signals (RS: Reference symbol) (shown in vertical lines) are arranged.

As shown in FIG. 14, when the mobile station apparatus arranges the first control information, the second control signal, and the uplink data (UL-SCH) on the PUSCH allocated by the base station apparatus, first, The control information is arranged by time-first mapping. Here, the number of areas in which the first control information is arranged (for example, the number of SC-FDMA symbols) is the MCS (modulation scheme and / or coding scheme) and resource size (time) for the PUSCH allocated by the base station apparatus. Depending on the component and / or the frequency component, the size of the PUSCH resource varies (the MCS of the first control information (the modulation scheme and / or the coding scheme may be fixed at a default value). Subsequently, the mobile station apparatus arranges the uplink data (UL-SCH) by time-first mapping after the first control information is arranged, and the mobile station apparatus transmits the second control signal. 14 is arranged adjacent to the RS as shown in Fig. 14. At this time, the second control information punctures the uplink data (UL-SCH). 14, as an example, the second control information is a region in which the time axis is smaller among the regions that can be arranged (four regions adjacent to the RS and 14 regions in the time axis direction). 3, 4 th, 5 th, 10 th, and 12 th areas), the second control information is disposed in the second area to be transmitted by the mobile station apparatus. The number of areas in which the control information is arranged) may be included in the PDCCH (uplink transmission permission signal) from the base station apparatus and instructed to the mobile station apparatus. By arranging the first control information, the second control information, and the uplink data (UL-SCH) on the PUSCH and transmitting them to the base station apparatus using the defined arrangement method, an instruction regarding the arrangement is sent from the base station apparatus. No need to receive, downlink radio Using source efficiently, it is possible to perform simultaneous transmission of the PUSCH and PUCCH.

FIG. 15 shows an example in which the mobile station apparatus arranges each of a plurality of first control information, second control information, and uplink data (UL-SCH) on the PUSCH allocated by the base station apparatus. Show. In FIG. 15, a plurality of pieces of first control information (indicated by solid lines and indicated by horizontal lines), second control information (indicated by black lines), and uplink data (UL) are assigned to PUSCHs allocated by the base station apparatus. -SCH) (shown in white) and pilot signal (RS) (shown in vertical lines) are arranged.

As shown in FIG. 15, when the mobile station apparatus arranges the first control information, the second control information, and the uplink data (UL-SCH) on the PUSCH allocated by the base station apparatus, for example, An index is assigned to each of the plurality of first control information, and the first control information is arranged by time-first mapping in order from the smallest index. In FIG. 15, the index indicates that the index is assigned according to the frequency position of the uplink carrier elements (UCC1, UCC2) (in order of decreasing frequency (or increasing order)). The first control information to be transmitted in the first PUCC arranged in UCC1 having a small (low (or high) frequency position) is arranged first, followed by a large index (or a high frequency position (or Low)) Arrange the first control information to be transmitted by the first PUCC arranged in UCC2. Subsequently, the mobile station apparatus arranges uplink data (UL-SCH) by time-first mapping. Furthermore, the mobile station apparatus arranges the second control signal adjacent to the RS as shown in FIG. At this time, the second control information is arranged by puncturing uplink data (UL-SCH). In FIG. 15, as an example, the second control information is the third area and the fifth area from the smallest in the time axis out of four areas that can be arranged (four areas adjacent to the RS and 14 areas in the time axis direction) This indicates that the second control information is arranged (the mobile station apparatus arranges the second control information to be transmitted). The number of areas) may be included in the PDCCH (uplink transmission permission signal) from the base station apparatus and instructed to the mobile station apparatus. The mobile station apparatus arranges each of the plurality of pieces of first control information and uplink data (UL-SCH) in the PUSCH by the pre-defined arrangement method as described above and transmits the PUSCH to the base station apparatus. There is no need to receive an arrangement instruction from the apparatus, and downlink radio resources can be efficiently used to simultaneously transmit PUSCH and PUCCH.

FIG. 16 shows another example when the mobile station apparatus arranges each of the plurality of first control information, second control information, and uplink data (UL-SCH) on the PUSCH allocated by the base station apparatus. An example is shown. In FIG. 16, the PUSCH allocated by the base station apparatus has a plurality of pieces of first control information (indicated by solid lines and horizontal lines), second control information (indicated by black lines), and uplink data (UL). -SCH (shown in white) and pilot signal ((RS) (shown in vertical line) are arranged.

As shown in FIG. 16, when the mobile station apparatus arranges each of the first control information, the second control information, and the uplink data (UL-SCH) on the PUSCH allocated by the base station apparatus, for example, The first control information to be transmitted on the first PUCCH allocated to the uplink carrier element to which the PUSCH is allocated is first allocated by time-first mapping. In FIG. 16, the base station apparatus indicates that the PUSCH arranged in UCC2 is allocated, and the mobile station apparatus firstly transmits the first control information to be transmitted on the first PUCCH arranged in UCC2. Next, the first control information to be transmitted by the first PUCC arranged in UCC1 is arranged. Subsequently, the mobile station apparatus arranges uplink data (UL-SCH) by time-first mapping. Furthermore, the mobile station apparatus arranges the second control signal adjacent to the RS as shown in FIG. At this time, the second control information is arranged by puncturing uplink data (UL-SCH). In FIG. 16, as an example, the second control information is the third, fifth from the smallest in the time axis out of four areas that can be arranged (four areas adjacent to the RS, and 14 areas in the time axis direction). This indicates that the second control information is arranged (the mobile station apparatus arranges the second control information to be transmitted). The number of areas) may be included in the PDCCH (uplink transmission permission signal) from the base station apparatus and instructed to the mobile station apparatus. The mobile station apparatus arranges each of the plurality of pieces of first control information and uplink data (UL-SCH) in the PUSCH by the pre-defined arrangement method as described above and transmits the PUSCH to the base station apparatus. There is no need to receive an arrangement instruction from the apparatus, and downlink radio resources can be efficiently used to simultaneously transmit PUSCH and PUCCH.

As described above, in a mobile communication system in which a base station apparatus and a mobile station apparatus communicate using a carrier element in a complex frequency band, all control information (first control information, When the mobile station apparatus that has received the transmission permission information instructing to transmit the second control information) on the allocated PUSCH from the base station apparatus is allocated the PUSCH by the base station apparatus, all the control information By transmitting (first control information, second control information) using the assigned PUSCH, it is possible to perform simultaneous transmission of data (information) with low transmission power in the mobile station apparatus. The mobile station apparatus arranges and transmits all the control information (first control information and second control information) on the PUSCH allocated by the base station apparatus, so that the mobile station apparatus transmits to the base station apparatus. It is possible to reduce (limit) the number of uplink channels to be transmitted at the same time, and to reduce the transmission power in the mobile station device (the mobile station device can perform simultaneous transmission with reduced (limited) transmission on the PUCCH. By doing so, it is possible to keep the transmission power lower). Further, the base station apparatus transmits to the mobile station apparatus transmission permission information that instructs transmission of all control information (first control information and second control information) using the allocated PUSCH. On the other hand, it is possible to switch whether or not all control information is arranged and transmitted on the PUSCH, and more flexible transmission control can be realized.

The embodiment described above is also applied to an integrated circuit / chip set mounted on a base station apparatus and a mobile station apparatus. Further, in the embodiment described above, each function in the base station device and a program for realizing each function in the mobile station device are recorded on a computer-readable recording medium and recorded on this recording medium. The base station apparatus and the mobile station apparatus may be controlled by causing the computer system to read and execute the program. Here, the “computer system” includes an OS and hardware such as peripheral devices.

Further, the “computer-readable recording medium” means a storage device such as a flexible disk, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. Further, the “computer-readable recording medium” dynamically holds a program for a short time, like a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line. In this case, it is also assumed that a server that holds a program for a certain time, such as a volatile memory inside a computer system that serves as a server or client. The program may be a program for realizing a part of the functions described above, and may be a program capable of realizing the functions described above in combination with a program already recorded in a computer system.

As described above in detail, the present invention can take the following measures.
That is, the mobile communication system is a mobile communication system in which a mobile station apparatus transmits a plurality of uplink data to a base station apparatus in the same subframe using a physical uplink shared channel arranged in each of a plurality of carrier elements. The base station apparatus uses the radio resource control signal to continuously transmit the first physical uplink control channel for the mobile station apparatus to transmit the first control information. The mobile station apparatus dynamically allocates a second physical uplink control channel for transmitting second control information to the mobile station apparatus in association with a physical downlink control channel. When the physical uplink shared channel is allocated, the mobile station apparatus uses the first physical uplink control channel to transmit first control information. A second control information using the physical uplink shared channel, and transmits both to the base station apparatus in the same subframe.

The mobile communication system is a mobile communication system in which a mobile station apparatus transmits a plurality of uplink data to a base station apparatus in the same subframe using a physical uplink shared channel arranged in each of a plurality of carrier elements. In the base station apparatus, the mobile station apparatus maintains a plurality of first physical uplink control channels for transmitting first control information in the same subframe using a radio resource control signal. The mobile station apparatus dynamically allocates the second physical uplink control channel for transmitting the second control information in association with the physical downlink control channel, and dynamically moves the mobile station apparatus. When the physical uplink shared channel is assigned, the mobile station device assigns the first control information to the plurality of first physical resources. Ri using the link control channel, the second control information using the physical uplink shared channel, and transmits to both the base station apparatus in the same subframe.

The mobile communication system is a mobile communication system in which a mobile station apparatus transmits a plurality of uplink data to a base station apparatus in the same subframe using a physical uplink shared channel arranged in each of a plurality of carrier elements. The base station apparatus uses a radio resource control signal for the plurality of first physical uplink control channels for transmitting each of the plurality of first control information in the same subframe. The mobile station apparatus continuously assigns the second physical uplink control channel for transmitting the second control information in association with the physical downlink control channel. Assigned to the mobile station device, and the mobile station device assigns the plurality of first control information when the physical uplink shared channel is assigned. Each using said plurality of first physical uplink control channel, the second control information using the physical uplink shared channel, and transmits both to the base station apparatus in the same subframe.

Further, the first control information is channel state information indicating a downlink channel state.

Further, the first control information is a scheduling request for requesting allocation of resources for transmitting uplink data.

Further, the first control information is control information in HARQ for a downlink transport block transmitted with resources continuously allocated by the base station apparatus.

Also, the second control information is control information in HARQ for the physical downlink control channel and / or the downlink transport block.

Also, the second control information is HARQ control information for a physical downlink control channel and / or downlink transport block that is transmitted with resources dynamically allocated by the base station apparatus.

Further, the second control information is control information in HARQ for a downlink transport block transmitted with resources continuously allocated by the base station apparatus.

Further, the mobile station apparatus is a mobile station apparatus that transmits a plurality of uplink data to the base station apparatus in the same subframe using a physical uplink shared channel arranged in each of a plurality of carrier elements. Means for receiving from the base station device a radio resource control signal that continuously assigns a first physical uplink control channel for transmitting one control information, and a second for transmitting second control information Means for dynamically allocating a physical uplink control channel and receiving a physical downlink control channel associated with a second physical uplink control channel from the base station apparatus; When the channel is allocated, the first control information is used as the first physical uplink control channel, and the second control information is set as the first control information. Use physical uplink shared channel, and means for both transmitting to the base station apparatus in the same subframe.

Further, the mobile station apparatus is a mobile station apparatus that transmits a plurality of uplink data to the base station apparatus in the same subframe using a physical uplink shared channel arranged in each of a plurality of carrier elements. Means for receiving, from the base station apparatus, a radio resource control signal that continuously assigns a plurality of first physical uplink control channels for transmitting one control information to the same subframe, and transmits second control information Means for dynamically allocating a second physical uplink control channel for performing a physical downlink control channel associated with a second physical uplink control channel from the base station device; and When the physical uplink shared channel is allocated, the first control information is transmitted to the plurality of first physical uplink control channels. Use comprises the second control information using the physical uplink shared channel, means for transmitting both to the base station apparatus in the same subframe, the.

The mobile station apparatus is a mobile station apparatus that transmits a plurality of uplink data to the base station apparatus in the same subframe using a physical uplink shared channel arranged in each of a plurality of carrier elements, Means for receiving, from the base station apparatus, a radio resource control signal that continuously allocates a plurality of first physical uplink control channels for transmitting each of the first control information to the same subframe, and second control Means for dynamically allocating a second physical uplink control channel for transmitting information and receiving a physical downlink control channel associated with a second physical uplink control channel from the base station apparatus; When the physical uplink shared channel is allocated by the station device, each of the plurality of first control information is transmitted to the plurality of first control information. Using a first physical uplink control channel, and a second control information using the physical uplink shared channel, means for transmitting both to the base station apparatus in the same subframe, the.

Also, the mobile communication method is a communication method in a mobile station apparatus that transmits a plurality of uplink data to a base station apparatus in the same subframe using a physical uplink shared channel arranged in each of a plurality of carrier elements. Receiving a radio resource control signal for continuously assigning a first physical uplink control channel for transmitting the first control information from the base station apparatus, and transmitting a second control information. A physical downlink control channel associated with a second physical uplink control channel that dynamically allocates the physical uplink control channel is received from the base station device, and the physical uplink shared channel is received by the base station device. Is assigned, the first control information is transmitted using the first physical uplink control channel and the second control information is transmitted in advance. Using physical uplink shared channel, and transmits both to the base station apparatus in the same subframe.

Also, the mobile communication method is a communication method in a mobile station apparatus that transmits a plurality of uplink data to a base station apparatus in the same subframe using a physical uplink shared channel arranged in each of a plurality of carrier elements. A plurality of first physical uplink control channels for transmitting the first control information are received from the base station apparatus for continuously assigning a plurality of first physical uplink control channels to the same subframe, and the second control information is A physical downlink control channel associated with a second physical uplink control channel that dynamically allocates a second physical uplink control channel for transmission is received from the base station device, and the base station device When the physical uplink shared channel is allocated, first control information is transferred to the plurality of first physical uplink control channels. Use Le, the second control information using the physical uplink shared channel, and transmits both to the base station apparatus in the same subframe.

Also, the mobile communication method is a communication method in a mobile station apparatus that transmits a plurality of uplink data to a base station apparatus in the same subframe using a physical uplink shared channel arranged in each of a plurality of carrier elements. Receiving a radio resource control signal for continuously assigning a plurality of first physical uplink control channels for transmitting each of the plurality of first control information to the same subframe from the base station apparatus, Receiving a physical downlink control channel associated with a second physical uplink control channel that dynamically allocates a second physical uplink control channel for transmitting control information from the base station apparatus; When the physical uplink shared channel is allocated by a device, each of the plurality of first control information is stored in the composite. Using a first physical uplink control channel, the second control information using the physical uplink shared channel, and transmits both to the base station apparatus in the same subframe.

The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and the design and the like within the scope of the present invention are also within the scope of the claims. include.

DESCRIPTION OF SYMBOLS 100 ... Base station apparatus, 101 ... Data control part, 102 ... Transmission data modulation part, 103 ... Radio | wireless part, 104 ... Scheduling part, 105 ... Channel estimation part, 106 ... Reception data demodulation part, 107 ... Data extraction part, 108 ... Upper layer, 109 ... antenna, 110 ... radio resource control unit, 200 ... mobile station apparatus, 201 ... data control unit, 202 ... transmission data modulation unit, 203 ... radio unit, 204 ... scheduling unit, 205 ... channel estimation unit, 206 ... received data demodulator, 207 ... data extractor, 208 ... upper layer, 209 ... antenna, 210 ... radio resource controller.

Claims

A mobile communication system in which a base station apparatus and a mobile station apparatus communicate using a plurality of component carriers,
The base station device
Continuously assigning a first physical uplink control channel to the mobile station apparatus;
Dynamically assigning a second physical uplink control channel to the mobile station device;
Assigning a physical uplink shared channel to the mobile station device,
The mobile station device
When the transmission of the first physical uplink control channel, the transmission of the second physical uplink control channel, and the transmission of the physical uplink shared channel occur in the same subframe, the physical uplink A mobile communication system, wherein a shared channel and the first physical uplink control channel are simultaneously transmitted.
A mobile communication system in which a base station apparatus and a mobile station apparatus communicate using a plurality of component carriers,
The base station device
The mobile station apparatus continuously assigns a first physical uplink control channel for transmitting first control information to the mobile station apparatus;
The mobile station apparatus dynamically allocates a second physical uplink control channel for transmitting second control information to the mobile station apparatus;
Assigning a physical uplink shared channel to the mobile station device,
The mobile station device
When the transmission of the first physical uplink control channel, the transmission of the second physical uplink control channel, and the transmission of the physical uplink shared channel occur in the same subframe, the second physical uplink control channel transmission A mobile communication system, wherein control information is arranged in the physical uplink shared channel and simultaneous transmission of the physical uplink shared channel and the first physical uplink control channel is performed.
A base station apparatus in a mobile communication system in which a base station apparatus and a mobile station apparatus communicate using a plurality of component carriers,
Means for continuously assigning a first physical uplink control channel to the mobile station device;
Means for dynamically allocating a second physical uplink control channel to the mobile station apparatus;
Means for allocating a physical uplink shared channel to the mobile station device;
In the mobile station apparatus, when transmission of the first physical uplink control channel, transmission of the second physical uplink control channel, and transmission of the physical uplink shared channel occur in the same subframe. Means for receiving simultaneous transmission of the physical uplink shared channel and the first physical uplink control channel by the mobile station device;
A base station apparatus comprising:
A base station apparatus in a mobile communication system in which a base station apparatus and a mobile station apparatus communicate using a plurality of component carriers,
Means for continuously assigning the first physical uplink control channel for transmitting the first control information to the mobile station device by the mobile station device;
Means for dynamically assigning a second physical uplink control channel for the mobile station apparatus to transmit second control information to the mobile station apparatus;
Means for allocating a physical uplink shared channel to the mobile station device;
In the mobile station apparatus, when transmission of the first physical uplink control channel, transmission of the second physical uplink control channel, and transmission of the physical uplink shared channel occur in the same subframe. Means for receiving simultaneous transmission of the physical uplink shared channel in which the second control information is arranged by the mobile station device and the first physical uplink control channel;
A base station apparatus comprising:
A mobile station apparatus in a mobile communication system in which a base station apparatus and a mobile station apparatus communicate using a plurality of component carriers,
Means for continuously assigning a first physical uplink control channel by the base station apparatus;
Means for dynamically assigning a second physical uplink control channel by the base station apparatus;
Means for allocating a physical uplink shared channel by the base station device;
When the transmission of the first physical uplink control channel, the transmission of the second physical uplink control channel, and the transmission of the physical uplink shared channel occur in the same subframe, the physical uplink Means for simultaneously transmitting a shared channel and the first physical uplink control channel;
A mobile station apparatus comprising:
A mobile station apparatus in a mobile communication system in which a base station apparatus and a mobile station apparatus communicate using a plurality of component carriers,
Means for continuously assigning a first physical uplink control channel for transmitting first control information by the base station apparatus;
Means for dynamically assigning a second physical uplink control channel for transmitting second control information by the base station device;
Means for allocating a physical uplink shared channel by the base station device;
When the transmission of the first physical uplink control channel, the transmission of the second physical uplink control channel, and the transmission of the physical uplink shared channel occur in the same subframe, the second physical uplink control channel transmission Means for arranging control information in the physical uplink shared channel and performing simultaneous transmission of the physical uplink shared channel and the first physical uplink control channel;
A mobile station apparatus comprising:
A communication method of a base station apparatus in a mobile communication system in which a base station apparatus and a mobile station apparatus communicate using a plurality of component carriers,
Continuously assigning a first physical uplink control channel to the mobile station apparatus;
Dynamically assigning a second physical uplink control channel to the mobile station device;
Assigning a physical uplink shared channel to the mobile station device,
In the mobile station apparatus, when transmission of the first physical uplink control channel, transmission of the second physical uplink control channel, and transmission of the physical uplink shared channel occur in the same subframe. Receiving the simultaneous transmission of the physical uplink shared channel and the first physical uplink control channel by the mobile station apparatus.
A communication method of a base station apparatus in a mobile communication system in which a base station apparatus and a mobile station apparatus communicate using a plurality of component carriers,
The mobile station apparatus continuously assigns a first physical uplink control channel for transmitting first control information to the mobile station apparatus;
The mobile station apparatus dynamically allocates a second physical uplink control channel for transmitting second control information to the mobile station apparatus;
Assigning a physical uplink shared channel to the mobile station device,
In the mobile station apparatus, when transmission of the first physical uplink control channel, transmission of the second physical uplink control channel, and transmission of the physical uplink shared channel occur in the same subframe. Receiving the simultaneous transmission of the physical uplink shared channel in which the second control information is arranged by the mobile station apparatus and the first physical uplink control channel.
A communication method of a mobile station apparatus in a mobile communication system in which a base station apparatus and a mobile station apparatus communicate using a plurality of component carriers,
A first physical uplink control channel is persistently allocated by the base station device;
A second physical uplink control channel is dynamically allocated by the base station apparatus;
A physical uplink shared channel is allocated by the base station device;
When the transmission of the first physical uplink control channel, the transmission of the second physical uplink control channel, and the transmission of the physical uplink shared channel occur in the same subframe, the physical uplink A communication method comprising: simultaneously transmitting a shared channel and the first physical uplink control channel.
A communication method of a mobile station apparatus in a mobile communication system in which a base station apparatus and a mobile station apparatus communicate using a plurality of component carriers,
A first physical uplink control channel for transmitting the first control information is continuously assigned by the base station apparatus;
A second physical uplink control channel for transmitting second control information is dynamically allocated by the base station apparatus,
A physical uplink shared channel is allocated by the base station device;
When the transmission of the first physical uplink control channel, the transmission of the second physical uplink control channel, and the transmission of the physical uplink shared channel occur in the same subframe, the second physical uplink control channel transmission A communication method characterized by arranging control information in the physical uplink shared channel and simultaneously transmitting the physical uplink shared channel and the first physical uplink control channel.