JP2013005367A - Mobile communication system, base station device, mobile station device, and communication method - Google Patents

Abstract

A mobile communication system, a base station apparatus, a mobile station apparatus, and a communication method are provided that enable a mobile station apparatus to efficiently transmit uplink control information to the base station apparatus.
A mobile communication system in which a base station apparatus and a mobile station apparatus communicate with each other using a plurality of serving cells, and the base station apparatus instructs setting of downlink and uplink subframes for each serving cell. Information is transmitted to the mobile station device, and the mobile station device uses the physical uplink control channel resource in the uplink subframe of the secondary cell in which the physical random access channel resource is set by the base station device. Link control information is transmitted to the base station apparatus.
[Selection] Figure 6

Description

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

  The evolution of cellular mobile radio access systems and wireless networks (hereinafter LTE: Long Term Evolution or EUTRA: Evolved Universal Terrestrial Radio Access) is being developed in the 3rd Generation Partnership Project (3GPP). It is being considered. In LTE, an OFDM (Orthogonal Frequency Division Multiplexing) scheme, which is multicarrier transmission, is used as a downlink communication scheme from a base station apparatus to a mobile station apparatus. Further, as an uplink communication method from the mobile station device to the base station device, a single carrier transmission SC-FDMA (Single-Carrier Frequency Division Multiple Access) method is used. Here, in LTE, a base station apparatus is also called eNodeB (evolved NodeB) and a mobile station apparatus is also called UE (User Equipment).

  Also, in LTE release 10, a technology (cell aggregation: cell aggregation, carrier aggregation: carrier aggregation) in which a base station apparatus and a mobile station apparatus communicate using a plurality of serving cells having the same channel structure as LTE release 8 / release 9 is used. (Referred to as non-patent document 1). For example, the base station apparatus and the mobile station apparatus can transmit and receive information on a plurality of physical channels in the same subframe using a plurality of aggregated serving cells.

  Furthermore, in LTE Release 11, when a base station apparatus and a mobile station apparatus perform communication using cell aggregation, different downlink and uplink subframe settings (hereinafter referred to as subframes) are performed in different frequency bands. Supporting the setting (also described as setting related to uplink-downlink setting and frame structure) is being studied (Non-Patent Document 2). Here, in LTE, a radio frame structure applied to FDD (Frequency Division Duplex) and TDD (Time Division Duplex) is supported.

"Carrier aggregation in LTE-Advanced", 3GPP TSG RAN WG1 Meeting # 53bis, R1-082468, June 30-July 4, 2008. "HARQ and Cross-carrier Scheduling for Different TDD configurations", 3GPP TSG RAN WG2 Meeting # 74, R2-112798, May 9-13, 2011.

  However, in the conventional technique, there is no specific description of how the mobile station apparatus transmits uplink control information (UCI) when transmitting it to the base station apparatus. For example, there is no specific description as to when the mobile station apparatus transmits uplink control information to the base station apparatus. Further, for example, there is no specific description of how the base station apparatus allocates resources used for transmission of uplink control information to the mobile station apparatus.

  The present invention has been made in view of such circumstances, and a mobile communication system, a base station apparatus, and a mobile station apparatus in which a mobile station apparatus can efficiently transmit uplink control information to the base station apparatus. And providing a communication method.

  (1) In order to achieve the above object, the present invention takes 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 with each other using a plurality of serving cells, and the base station apparatus performs downlink and uplink sub-links for each serving cell. The mobile station apparatus transmits information for instructing frame setting to the mobile station apparatus, and the mobile station apparatus uses a physical uplink control channel resource in an uplink subframe of a secondary cell in which a physical random access channel resource is set by the base station apparatus. Is used to transmit uplink control information to the base station apparatus.

  (2) A mobile communication system in which a base station apparatus and a mobile station apparatus communicate with each other using a plurality of serving cells, wherein the base station apparatus instructs setting of downlink and uplink subframes for each serving cell. Information transmitted to the mobile station apparatus, and the mobile station apparatus performs physical uplink in an uplink subframe of either a primary cell or a secondary cell in which a physical random access channel resource is set by the base station apparatus. It is characterized by transmitting uplink control information to the base station apparatus using a control channel resource.

  (3) In addition, when the subframe of the primary cell is an uplink subframe, the mobile station apparatus uses the physical uplink control channel resource of the primary cell to transmit the uplink control information to the mobile station apparatus. It transmits to a base station apparatus.

  (4) In addition, the mobile station device, when the subframe of the primary cell is an uplink subframe and the subframe of the secondary cell in which the physical random access channel resource is set is an uplink subframe, The uplink control information is transmitted to the base station apparatus using the physical uplink control channel resource of the primary cell.

  (5) Further, the mobile station apparatus may be configured such that when the subframe of the primary cell is a downlink subframe and the subframe of the secondary cell in which the physical random access channel resource is set is an uplink subframe, The uplink control information is transmitted to the base station apparatus using the physical uplink control channel resource of the secondary cell in which a physical random access channel resource is set.

  (6) A mobile communication system in which a base station apparatus and a mobile station apparatus communicate with each other using a plurality of serving cells, wherein the base station apparatus instructs setting of downlink and uplink subframes for each serving cell. To the mobile station device, and the mobile station device detects a physical downlink control channel, thereby detecting a physical downlink access channel in a secondary cell different from a secondary cell in which a physical random access channel resource is set by the base station device. When the physical downlink shared channel transmission is instructed, the uplink control information is transmitted using the physical uplink control channel resource indicated by the downlink control information transmitted in the physical downlink control channel. It transmits to a base station apparatus.

  (7) Further, the mobile station apparatus transmits the uplink control information on a physical downlink control channel instructing physical downlink shared channel transmission in a secondary cell in which the physical random access channel resource is set. It transmits to the said base station apparatus with the transmission power set according to downlink control information, It is characterized by the above-mentioned.

  (8) In addition, in the mobile communication system in which a base station apparatus and a mobile station apparatus communicate with each other using a plurality of serving cells, the base station apparatus instructs setting of downlink and uplink subframes for each serving cell. Information transmitted to the mobile station apparatus, and the mobile station apparatus transmits the uplink control information using the physical uplink control channel resource in the uplink subframe of the primary cell. In order to indicate the physical uplink control channel resource, the downlink control information transmitted in the physical downlink control channel indicating the physical downlink shared channel in the secondary cell in which the physical random access channel resource is set by the device Interpreted as information to be used, and uplink control information When transmitting using the physical uplink control channel resource in the uplink subframe of the secondary cell in which the random access channel resource is set, the downlink control information is transmitted when the uplink control information is transmitted. It is characterized by being interpreted as information used to set power.

  (9) Further, the base station apparatus communicates with the mobile station apparatus using a plurality of serving cells, and transmits information instructing setting of downlink and uplink subframes for each serving cell to the mobile station apparatus. A unit for receiving uplink control information from the mobile station apparatus using a physical uplink control channel resource in an uplink subframe of a secondary cell in which a physical random access channel resource is set by the base station apparatus; It is characterized by providing.

  (10) A base station apparatus that communicates with a mobile station apparatus using a plurality of serving cells, and transmits information instructing setting of downlink and uplink subframes for each serving cell to the mobile station apparatus. A physical uplink control channel resource in an uplink subframe of either a unit, a primary cell, or a secondary cell in which a physical random access channel resource is set by the base station apparatus, and And a unit for receiving from the mobile station apparatus.

  (11) Further, a base station apparatus that communicates with a mobile station apparatus using a plurality of serving cells, and transmits information instructing the setting of downlink and uplink subframes for each serving cell to the mobile station apparatus. When the unit and the mobile station apparatus detect a physical downlink control channel, physical downlink shared channel transmission is performed in a secondary cell different from the secondary cell in which a physical random access channel resource is set by the base station apparatus. When instructed, a unit that receives uplink control information from the mobile station apparatus using a physical uplink control channel resource indicated by downlink control information transmitted on the physical downlink control channel; It is characterized by providing.

  (12) Further, the base station apparatus communicates with the mobile station apparatus using a plurality of serving cells, and transmits information instructing setting of downlink and uplink subframes for each serving cell to the mobile station apparatus. When the unit and the mobile station apparatus transmit uplink control information using a physical uplink control channel resource in an uplink subframe of a primary cell, a physical random access channel resource is generated by the base station apparatus. A unit that interprets downlink control information transmitted on a physical downlink control channel indicating a physical downlink shared channel in a set secondary cell as information used to indicate the physical uplink control channel resource And the mobile station apparatus transmits uplink control information. When transmitting using the physical uplink control channel resource in the uplink subframe of the secondary cell in which the physical random access channel resource is set, when transmitting the downlink control information, the uplink control information And a unit that interprets the information used to set the transmission power of the transmission.

  (13) Further, the mobile station apparatus communicates with the base station apparatus using a plurality of serving cells, and receives information instructing setting of downlink and uplink subframes for each serving cell from the base station apparatus. A unit for transmitting uplink control information to the base station apparatus using a physical uplink control channel resource in an uplink subframe of a secondary cell in which a physical random access channel resource is set by the base station apparatus; It is characterized by providing.

  (14) Further, the mobile station apparatus communicates with the base station apparatus using a plurality of serving cells, and receives information instructing setting of downlink and uplink subframes for each serving cell from the base station apparatus. A physical uplink control channel resource in an uplink subframe of either a unit, a primary cell, or a secondary cell in which a physical random access channel resource is set by the base station apparatus, and And a unit for transmitting to the base station apparatus.

  (15) Further, the mobile station apparatus communicates with the base station apparatus using a plurality of serving cells, and receives information instructing setting of downlink and uplink subframes for each serving cell from the base station apparatus. When a physical downlink shared channel transmission is instructed in a secondary cell different from a secondary cell in which a physical random access channel resource is set by the base station device by detecting a unit and a physical downlink control channel A unit for transmitting uplink control information to the base station apparatus using a physical uplink control channel resource indicated by downlink control information transmitted on the physical downlink control channel. It is said.

  (16) Further, the mobile station apparatus communicates with the base station apparatus using a plurality of serving cells, and receives information instructing setting of downlink and uplink subframes for each serving cell from the base station apparatus. When transmitting the unit and the uplink control information using the physical uplink control channel resource in the uplink subframe of the primary cell, the secondary cell in which the physical random access channel resource is set by the base station apparatus. A unit that interprets downlink control information transmitted on a physical downlink control channel indicating a physical downlink shared channel as information used to indicate the physical uplink control channel resource, and uplink control information The physical random access channel When transmitting using the physical uplink control channel resource in the uplink subframe of the secondary cell in which the source is set, the downlink control information is set to the transmission power when transmitting the uplink control information. And a unit that interprets the information used to do this.

  (17) In addition, in the communication method of a base station apparatus that communicates with a mobile station apparatus using a plurality of serving cells, the mobile station apparatus transmits information instructing setting of downlink and uplink subframes for each serving cell. Receiving uplink control information from the mobile station apparatus using the physical uplink control channel resource in the uplink subframe of the secondary cell in which the physical random access channel resource is set by the base station apparatus. It is characterized by.

  (18) In addition, in the communication method of the base station apparatus that communicates with the mobile station apparatus using a plurality of serving cells, the mobile station apparatus transmits information instructing setting of downlink and uplink subframes for each serving cell. Uplink control information using the physical uplink control channel resource in the uplink subframe of either the primary cell or the secondary cell in which the physical random access channel resource is set by the base station apparatus. It receives from the said mobile station apparatus, It is characterized by the above-mentioned.

  (19) Also, a communication method of a base station apparatus that communicates with a mobile station apparatus using a plurality of serving cells, wherein information instructing setting of a downlink and an uplink subframe for each serving cell is transmitted to the mobile station apparatus When the mobile station apparatus detects a physical downlink control channel, the physical downlink shared channel transmission is performed in a secondary cell different from the secondary cell in which a physical random access channel resource is set by the base station apparatus. Is received, the uplink control information is received from the mobile station apparatus using the physical uplink control channel resource indicated by the downlink control information transmitted on the physical downlink control channel. It is characterized by.

  (20) A communication method of a base station apparatus that communicates with a mobile station apparatus using a plurality of serving cells, the mobile station apparatus including information instructing setting of downlink and uplink subframes for each serving cell When the mobile station apparatus transmits uplink control information using a physical uplink control channel resource in an uplink subframe of a primary cell, a physical random access channel resource is transmitted by the base station apparatus. Interprets downlink control information transmitted on a physical downlink control channel indicating a physical downlink shared channel in a secondary cell in which is set as information used to indicate the physical uplink control channel resource. The mobile station apparatus transmits uplink control information to the physical run. When transmitting using the physical uplink control channel resource in the uplink subframe of the secondary cell in which the access channel resource is set, the downlink control information is transmitted when transmitting the uplink control information. It is characterized by being interpreted as information used to set power.

  (21) In addition, in the communication method of a mobile station apparatus that communicates with a base station apparatus using a plurality of serving cells, the base station apparatus transmits information instructing setting of downlink and uplink subframes for each serving cell. Using the physical uplink control channel resource in the uplink subframe of the secondary cell in which the physical random access channel resource is set by the base station apparatus, and transmitting uplink control information to the base station apparatus It is characterized by.

  (22) A communication method of a mobile station apparatus that communicates with a base station apparatus using a plurality of serving cells, wherein information instructing setting of downlink and uplink subframes for each serving cell is transmitted to the base station apparatus Using the physical uplink control channel resource in the uplink subframe of either the primary cell or the secondary cell in which the physical random access channel resource is set by the base station apparatus. It transmits to the said base station apparatus, It is characterized by the above-mentioned.

  (23) In addition, in the communication method of a mobile station apparatus that communicates with a base station apparatus using a plurality of serving cells, the base station apparatus transmits information instructing setting of downlink and uplink subframes for each serving cell. When the physical downlink shared channel transmission in the secondary cell different from the secondary cell in which the physical random access channel resource is set by the base station apparatus is instructed by detecting the physical downlink control channel Is characterized in that uplink control information is transmitted to the base station apparatus using a physical uplink control channel resource indicated by downlink control information transmitted on the physical downlink control channel.

  (24) In addition, in the communication method of a mobile station apparatus that communicates with a base station apparatus using a plurality of serving cells, the base station apparatus transmits information instructing setting of downlink and uplink subframes for each serving cell. When the uplink control information is transmitted using the physical uplink control channel resource in the uplink subframe of the primary cell, the secondary cell in which the physical random access channel resource is set by the base station apparatus. Interpreting downlink control information transmitted on a physical downlink control channel indicating a physical downlink shared channel in FIG. 4 as information used to indicate the physical uplink control channel resource, The physical random access channel resource is set When transmitting using the physical uplink control channel resource in the uplink subframe of the secondary cell, in order to set the downlink control information, the transmission power when transmitting the uplink control information It is characterized by being interpreted as used information.

  Provided are a mobile communication system, a base station apparatus, a mobile station apparatus, and a communication method that enable a mobile station apparatus to efficiently transmit uplink control information to the base station apparatus.

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 which concerns on embodiment of this invention. It is a block diagram which shows schematic structure of the mobile station apparatus which concerns on embodiment of this invention. It is a figure which shows the cell aggregation which concerns on embodiment of this invention. It is a figure which shows the example of the setting of the sub-frame which concerns on embodiment of this invention. It is a figure explaining embodiment of this invention. It is another figure explaining embodiment of this invention. It is a figure which shows the example of the downlink relevance set parameter | index which concerns on embodiment of this invention.

  Next, embodiments according to the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing a configuration example of a physical channel in the embodiment of the present invention. Here, the physical channel is defined (configured) by a time domain and a frequency domain.

  The downlink physical channel includes a physical downlink control channel (PDCCH), a physical downlink shared channel (PDSCH), and the like. An uplink physical channel is configured by a physical uplink shared channel (PUSCH), a physical uplink control channel (PUCCH), a physical random access channel (PRACH), and the like. Is done.

  The PDCCH is downlink control information (DCI: Downlink Control) such as downlink scheduling information (also referred to as downlink assignment) and uplink scheduling information (also referred to as uplink grant). Information) is a physical channel used to transmit (notify, specify). Here, a plurality of formats are defined for transmission of downlink control information. The format of the downlink control information is also called a DCI format (Downlink Control Information format).

  For example, DCI format 1 is used for scheduling of PDSCH (one PDSCH codeword (CW)) in one cell. Also, for example, the DCI format 1A is used for a random access procedure initiated by scheduling of a PDSCH (one PDSCH codeword (CW)) and a PDCCH order in one cell. Also, for example, DCI format 2 is used for PDSCH scheduling in one cell in the multi-antenna port mode. That is, DCI format 1, DCI format 1A, and DCI format 2 are downlink assignments used for PDSCH scheduling.

  For example, using downlink assignment, resource allocation information for PDSCH (Resource block assignment), information on modulation scheme and coding rate for PDSCH (MCS: Modulation and Coding Scheme), transmission power control command (TPC command for PUCCH) : Transmission Power Control command for PUCCH), downlink assignment index (DAI), etc. are transmitted. That is, fields indicating these pieces of information are defined in the DCI format and mapped to information bits.

  Also, for example, DCI format 0 is used for PUSCH scheduling in one cell (in single antenna port transmission mode). Also, for example, DCI format 4 is used for PUSCH scheduling in one cell in the multi-antenna port mode. That is, DCI format 0 and DCI format 4 are uplink grants used for PUSCH scheduling.

  For example, using uplink grant, resource allocation information for PUSCH (Resource block assignment), information on modulation scheme and coding rate (MCS: Modulation and Coding Scheme) for PUSCH, transmission power control command for scheduled PUSCH ( Information such as a TPC command (Transmission Power Control command for scheduled PUSCH) and a downlink assignment index (DAI) is transmitted. That is, fields indicating these pieces of information are defined in the DCI format and mapped to information bits.

  The PDSCH is a channel used for transmitting downlink data (transport block for a downlink shared channel (DL-SCH)) or paging information (paging channel, PCH: Paging Channel). The base station apparatus transmits downlink data to the mobile station apparatus using the PDSCH assigned by the PDCCH.

  Here, the downlink data indicates, for example, user data, and DL-SCH is a transport channel. A unit for transmitting downlink data by PDSCH is called a downlink transport block (TB), and the downlink transport block is a unit handled in a MAC (Medium Access Control) layer. Also, the downlink transport block is associated with a codeword in the physical layer. For example, the base station apparatus transmits a downlink transport block with two codewords by PDSCH transmission in multi-antenna port mode (by applying MIMO SM (Multiple Input Multiple Output Spatial Multiplexing) to PDSCH). Can do.

  PUSCH is a physical channel used for transmitting uplink data (transport block for uplink shared channel (UL-SCH)). A mobile station apparatus transmits uplink data to a base station apparatus using PUSCH allocated by PDCCH transmitted from the base station apparatus.

  Here, when the base station apparatus schedules the mobile station apparatus, uplink control information is also transmitted using the PUSCH. The uplink control information includes channel state information (CSI: Channel State Information). The channel state information includes (consists of) a channel quality identifier (CQI: Channel Quality Indicator), a precoding matrix identifier (PMI: Precoding Matrix Indicator), and a rank identifier (RI: Rank Indicator).

  Further, the uplink control information includes control information in HARQ (Hybrid Automatic Repeat Request). Here, the control information in HARQ includes information indicating ACK / NACK (Positive Acknowledgment / Negative Acknowledgment, ACK or NACK) for downlink data. In addition, the control information in HARQ includes information indicating DTX (Discontinuous Transmission). The information indicating DTX includes information indicating that the mobile station apparatus did not detect (monitor) the PDCCH and / or PDSCH transmitted from the base station apparatus.

  Also, the uplink control information includes a scheduling request (SR) used for requesting allocation of resources for the mobile station apparatus to transmit uplink data.

  Here, the uplink data indicates, for example, user data, and UL-SCH is a transport channel. A unit for transmitting uplink data by PUSCH is called an uplink transport block, and the uplink transport block is a unit handled in the MAC layer. Further, the uplink transport block is associated with a code word in the physical layer. For example, the mobile station apparatus can transmit an uplink transport block with two codewords by PUSCH transmission in the multi-antenna port mode (by applying MIMO SM to PUSCH).

  Further, the base station device and the mobile station device exchange (transmit / receive) signals in the higher layer. For example, a base station apparatus and a mobile station apparatus transmit and receive a radio resource control signal (RRC signaling: Radio Resource Control Signaling) in a radio resource control (RRC: Radio Resource Control) layer. Further, for example, the base station device and the mobile station device transmit and receive a MAC (Medium Access Control) control element in the MAC layer. Here, the RRC signaling and / or MAC control element is also referred to as higher layer signaling. For example, the mobile station apparatus performs setting by the upper layer of the mobile station apparatus according to the upper layer signal transmitted from the base station apparatus.

  The PUCCH is a physical channel used for transmitting the uplink control information as described above.

  PRACH is a physical channel used for transmitting a random access preamble (notifying a preamble sequence). The PRACH is mainly used as a means for accessing the base station apparatus by the mobile station apparatus. For example, 64 types of sequences represented by 6-bit information are defined as preamble sequences.

In addition, the base station apparatus and the mobile station apparatus transmit and receive PRACH for the purpose of synchronizing the time domain. For example, the mobile station apparatus may adjust the uplink transmission timing to the reception timing window of the base station apparatus. PRACH is used to request the necessary transmission timing adjustment information (Timing Advance (TA)). Also, for example, the PRACH is used for an initial connection establishment procedure, a handover procedure, a connection re-establishment procedure, and a request for uplink radio resource allocation. Here, the mobile station apparatus transmits a random access preamble using the PRACH resource set by the base station apparatus.
[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. Here, each part which comprises the base station apparatus 100 is also called a 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 applies the scheduling information from the scheduling unit 104 to the data input from the data control unit 101 and the modulation scheme and coding scheme corresponding to each physical resource block (PRB). Based on this, it performs signal processing such as coding, serial / parallel conversion of input signals, IFFT (Inverse Fast Fourier Transform) processing, CP (Cyclic Prefix) insertion, and filtering to generate transmission data. To the wireless unit 103.

  Here, the scheduling information includes PRB allocation information, for example, PRB position information composed of frequency and time, and the modulation scheme and coding scheme corresponding to each PRB include, for example, modulation scheme: 16QAM, Encoding rate: Information such as 2/3 coding rate is included.

  Radio section 103 up-converts the modulation data input from transmission data modulation section 102 to a radio frequency to generate a radio signal, and transmits the radio signal to mobile station apparatus 200 via 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 MAC layer processing. 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 An interface between the unit 102 and the data extraction unit 107 exists.

  In downlink scheduling, the scheduling unit 104 performs uplink control information received from the mobile station apparatus 200, PRB information usable in each mobile station apparatus 200, buffer status, and scheduling input from the upper layer 108. Based on information, etc., it is used for downlink transport format (transmission form, ie, PRB allocation, modulation scheme and coding scheme) selection processing for modulation of each data, HARQ retransmission control and downlink Scheduling information is generated. 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. Uplink transport format for modulating each data based on the PRB information that can be used in the network, scheduling information input from the higher layer 108, etc. (transmission form, ie, PRB allocation, modulation scheme and encoding) The scheduling information used for the selection process of the method and the scheduling of the uplink is generated. Scheduling information used for uplink scheduling is output to the data control unit 101.

  In addition, 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.

  Channel estimation section 105 estimates an uplink channel state from an uplink demodulation reference signal (UDRS) for demodulation of uplink data, and outputs the estimation result to reception data demodulation section 106. To do. In addition, in order to perform uplink scheduling, an uplink channel state is estimated from an uplink measurement reference signal (SRS), and the estimation result is output to the scheduling section 104.

  The reception data demodulator 106 also serves as an OFDM demodulator and / or a DFT-Spread-OFDM (DFT-S-OFDM) demodulator that demodulates received data modulated by the OFDM scheme and / or SC-FDMA scheme. 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 whether the data input from the reception data demodulation unit 106 is correct and outputs a confirmation result (ACK or 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 CSI and HARQ control information transmitted from the mobile station apparatus 200, a scheduling request, and the like.

  The upper layer 108 performs processing of a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, and a radio resource control (RRC) 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.

  The upper layer 108 has a radio resource control unit 110 (also referred to as a control unit). The radio resource control unit 110 also manages various setting information, system information, paging control, communication state management of each mobile station device 200, mobility management such as handover, and buffer status for each mobile station device 200 Management, management of unicast and multicast bearer connection settings, management of mobile station identifiers (UEID), and the like. Upper layer 108 exchanges information with another base station apparatus 100 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. Here, each part which comprises the mobile station apparatus 200 is also called a unit.

  The data control unit 201, the transmission data modulation unit 202, and the radio unit 203 perform processing on 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 a 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 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.

  Radio section 203 up-converts the modulation data input from transmission data modulation section 202 to a radio frequency, generates a radio signal, and transmits the radio signal to base station apparatus 100 via 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 MAC layer processing. 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.

  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. The scheduling unit 204 also outputs the channel state information input from the channel estimation unit 205 and the CRC (Cyclic Redundancy Check) confirmation result input from the data extraction unit 207 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.

  Channel estimation section 205 estimates the downlink channel state from the downlink reference signal and outputs the estimation result to reception data demodulation section 206 in order to demodulate the downlink data. Further, the channel estimation unit 205 estimates the downlink channel state from the downlink reference signal in order to notify the base station apparatus 100 of the estimation result of the downlink channel state, and uses this estimation result as channel state information. To the scheduling unit 204.

  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 CRC on the data input from the reception data demodulation unit 206 to confirm the correctness and outputs a confirmation result (information indicating ACK or 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 convergence protocol (PDCP) layer, a radio link control (RLC) layer, and a radio resource control (RRC) 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 wireless unit 203 exists.

  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).

[About cell aggregation (carrier aggregation)]
FIG. 4 is a diagram for explaining cell aggregation (or carrier aggregation) according to the present embodiment. In this embodiment, cell aggregation is supported on the uplink and downlink, and for example, each serving cell can have a transmission bandwidth of up to 110 resource blocks.

  FIG. 4 shows that three serving cells (serving cell 1, serving cell 2, and serving cell 3) are aggregated. Here, the base station apparatus sets one or a plurality of serving cell sets that may be used for communication (may allocate PDCCH and / or PDSCH and / or PUSCH) to the mobile station apparatus. For example, the base station apparatus sets a serving cell set for the mobile station apparatus using RRC signaling (may be dedicated signaling for a certain mobile station apparatus).

  Further, the base station apparatus activates and / or deactivates each serving cell constituting the set serving cell set. For example, the base station apparatus activates and / or deactivates each serving cell using the MAC control element.

  Here, in FIG. 4, for example, one serving cell among the aggregated plurality of serving cells is defined as a primary cell (Pcell). For example, the primary cell is defined as a serving cell having the same function as the LTE Release 8 / Release 9 cell. Further, for example, the primary cell is a cell in which the mobile station apparatus performs an initial connection establishment procedure, a cell in which the mobile station apparatus starts a connection re-establishment procedure, or a handover procedure. Defined as the cell designated as the primary cell. Here, the base station apparatus can instruct the primary cell to the mobile station apparatus using RRC signaling (may be dedicated signaling).

  In FIG. 4, the serving cell excluding the primary cell is defined as a secondary cell (Scell). The secondary cell is mainly used to provide an additional radio resource to the mobile station apparatus, and is used for transmission / reception of information on PDSCH, PUSCH, and PRACH. For example, the base station apparatus can instruct the secondary cell to the mobile station apparatus using RRC signaling (may be dedicated signaling).

  Here, a carrier corresponding to a serving cell in the downlink is defined as a downlink component carrier (DLCC). A carrier corresponding to a serving cell in the uplink is defined as an uplink component carrier (ULCC).

  A carrier corresponding to a primary cell in the downlink is defined as a downlink primary component carrier (DLPCC). A carrier corresponding to a secondary cell in the downlink is defined as a downlink secondary component carrier (DLSCC). Further, a carrier corresponding to a primary cell in the uplink is defined as an uplink primary component carrier (ULPCC). Furthermore, the carrier corresponding to the secondary cell in the uplink is defined as an uplink secondary component carrier (ULSCCC).

  In FIG. 4, the base station apparatus and the mobile station apparatus transmit and receive physical channels (for example, PDCCH, PDSCH, PUSCH, PUCCH, PRACH) using any one serving cell. For example, the base station apparatus and the mobile station apparatus transmit and receive one PDCCH using one serving cell (DLCC). For example, the base station apparatus and the mobile station apparatus transmit and receive one PUSCH using one serving cell (ULCC).

  Further, in FIG. 4, the base station apparatus transmits information (carrier indicator: Carrier Indicator) indicating the serving cell corresponding to the downlink assignment and the uplink grant to the downlink assignment and the uplink grant transmitted for each serving cell. It can be notified to the mobile station apparatus whether or not it is included.

[Random access procedure]
A random access procedure according to this embodiment will be described. In the present embodiment, the base station apparatus transmits a setting related to the PRACH of the primary cell (which may be a setting related to RACH, also described as information indicating a set of PRACH resources and information indicating PRACH resources) to the mobile station apparatus. Moreover, the base station apparatus transmits the setting regarding PRACH of at least one secondary cell to the mobile station apparatus.

  Hereinafter, the secondary cell (the secondary cell in which the PRACH resource set is set and the secondary cell in which the PRACH resource is set) in which the setting related to the PRACH is transmitted by the base station apparatus is also referred to as a secondary primary cell (SPcell: Secondary Primary Cell). To do.

  Further, the mobile station apparatus selects one PRACH resource from the set of set PRACH resources, and transmits a random access preamble to the base station apparatus using the selected PRACH resource (random access message 1). . Here, the mobile station apparatus may transmit a plurality of random access preambles to the base station apparatus in the same subframe using the PRACH resource of the primary cell and the PRACH resource of the secondary primary cell.

  In addition, the base station apparatus transmits downlink control information instructing transmission of PRACH (may be transmission of random access preamble) in the primary cell and / or secondary primary cell to the mobile station apparatus using PDCCH. That is, the base station apparatus can instruct the start of PRACH transmission using RRC signaling and PDCCH.

  Further, the base station apparatus that has received the random access preamble from the mobile station apparatus calculates the amount of timing adjustment for the physical uplink channel of the serving cell based on the received random access preamble. Also, the base station apparatus, in response to the random access preamble received from the mobile station apparatus, transmits a random access response including information (TA command: Timing Advance command) indicating the amount of timing adjustment for the physical uplink channel to the mobile station. Transmit to the device (random access message 2). Here, the physical uplink channel includes PUSCH and / or PUCCH.

  At this time, the base station apparatus transmits a random access response on the PDSCH of the primary cell in response to the random access preamble received in the primary cell. Further, the base station apparatus transmits a random access response on the PDSCH of the primary cell or the PDSCH of the secondary primary cell in response to the random access preamble received in the secondary primary cell.

  Furthermore, when the mobile station apparatus transmits the random access preamble of the index (number) notified by the base station apparatus, the mobile station apparatus ends the random access procedure after successfully receiving the random access response. In addition, when the mobile station apparatus transmits the random access preamble selected by the mobile station apparatus, after successfully receiving the random access response, the mobile station apparatus transmits the random access message 3 to the base station apparatus. Message 4 is received from the base station apparatus.

(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 performs downlink and uplink subframe settings (hereinafter also referred to as subframe settings, uplink-downlink settings, and frame structure settings) for each serving cell. The instructing information is transmitted to the mobile station apparatus, and the mobile station apparatus uses the PUCCH resource in the uplink subframe of the secondary cell in which the PRACH resource is set by the base station apparatus, and transmits uplink control information to the base station apparatus. Send.

  Further, the base station apparatus transmits information instructing setting of downlink and uplink subframes for each serving cell to the mobile station apparatus, and the mobile station apparatus sets the PRACH resource by the primary cell or the base station apparatus. The uplink control information is transmitted to the base station apparatus using the PUCCH resource in one of the uplink subframes of the secondary cell.

  That is, the base station apparatus transmits information instructing setting of downlink and uplink subframes for each serving cell to the mobile station apparatus, and the mobile station apparatus sets the PRACH resource by the primary cell or the base station apparatus. The selected secondary cell is selected, and uplink control information is transmitted to the base station apparatus using the PUCCH resource in the uplink subframe of the selected serving cell.

  Further, when the subframe of the primary cell is an uplink subframe, the mobile station apparatus transmits uplink control information to the base station apparatus using the PUCCH resource of the primary cell.

  That is, when the subframe of the primary cell is an uplink subframe and the subframe of the secondary cell in which the PRACH resource is set is an uplink subframe, the mobile station apparatus uses the PUCCH resource of the primary cell, Uplink control information is transmitted to the base station apparatus.

  In addition, when the subframe of the primary cell is a downlink subframe and the subframe of the secondary cell in which the PRACH resource is set is an uplink subframe, the mobile station apparatus can determine the PUCCH of the secondary cell in which the PRACH resource is set. The uplink control information is transmitted to the base station apparatus using the resource.

  Here, the uplink control information includes channel state information. Further, the uplink control information includes control information in HARQ. Further, the uplink control information includes a scheduling request. In addition, a radio frame structure applied to at least TDD is supported by the base station apparatus and the mobile station apparatus.

  FIG. 5 illustrates an example of setting of downlink and uplink subframes. That is, subframe settings as shown in FIG. 5 are supported by the mobile communication system (base station apparatus and mobile station apparatus). FIG. 5 shows the correspondence between the uplink (uplink subframe) and the downlink (downlink subframe) in 10 subframes indicated by subframe numbers from 0 to 9. Here, 10 subframes (for example, 10 ms) correspond to one radio frame.

  Further, in each subframe in FIG. 5, D indicates a subframe (downlink subframe) reserved (defined) for downlink transmission. U indicates a subframe (uplink subframe) reserved (defined) for uplink transmission.

  S indicates a special subframe. Here, there are three special subframes, for example, DwPTS (downlink pilot time slot), GP (guard period), UpPTS (uplink pilot time slot). A subframe including (consisting of) a field is shown. Here, DwPTS is used for downlink transmission, and UpPTS is used for uplink transmission.

  Furthermore, in the setting of subframes as shown in FIG. 5, a switching point period (downlink-to-uplink switch-point periodicity) of 5 subframes (5 ms) and 10 subframes (10 ms) is supported.

  Here, when a plurality of serving cells are aggregated (that is, when a plurality of serving cells are set by the base station apparatus), the base station apparatus transmits information instructing setting of a subframe for each serving cell to the mobile station apparatus. To do. That is, the mobile station apparatus transmits information to the base station apparatus according to the subframe setting for each serving cell transmitted by the base station apparatus.

  For example, the base station apparatus transmits information instructing setting of a subframe for each serving cell using RRC signaling (may be dedicated signaling). For example, the base station apparatus transmits 1 (uplink-downlink configuration: 1) as information for instructing setting of a subframe for a certain serving cell, and 3 (uplink-downlink) as information for instructing setting of a subframe for another serving cell. Configuration: 3) is transmitted.

  FIG. 6 shows that four serving cells (serving cell 1, serving cell 2, serving cell 3, and serving cell 4) are aggregated. That is, in FIG. 6, the base station apparatus sets four serving cells for the mobile station apparatus.

  In FIG. 6, a serving cell 1 indicates a primary cell. That is, the serving cell 1 is instructed by the base station apparatus as a cell in which the mobile station apparatus performs an initial connection establishment procedure, a cell in which the mobile station apparatus starts a connection re-establishment procedure, or a primary cell during a handover procedure, for example. Cells are included.

  Here, the mobile station apparatus transmits uplink control information to the base station apparatus using the PUCCH resource in the uplink subframe of the primary cell.

  Further, the base station apparatus transmits information instructing the setting of subframes for each serving cell to the mobile station apparatus. In FIG. 6, the base station apparatus transmits information instructing setting of the same subframe to the serving cell 1 and the serving cell 2, and transmits information instructing setting of the same subframe to the serving cell 3 and the serving cell 4. It shows that. Hereinafter, one or a plurality of serving cells in which information instructing the setting of the same subframe is transmitted by the base station apparatus are also referred to as a serving cell group.

  Further, the base station apparatus transmits a setting related to the PRACH for the primary cell to the mobile station apparatus. Here, the PRACH settings include PRACH resources (time resources and / or frequency resources), random access preamble formats, information that specifies PRACH that the mobile station apparatus can transmit random access preambles, and random access preambles can be transmitted. Contains settings (information) about the maximum number. That is, the base station apparatus transmits information indicating the set of PRACH resources for the primary cell to the mobile station apparatus, and sets the PRACH resource set for the primary cell.

  Similarly, a base station apparatus transmits the setting regarding PRACH with respect to at least 1 secondary cell to a mobile station apparatus. That is, the base station apparatus transmits information indicating a set of PRACH resources for at least one secondary cell to the mobile station apparatus, and sets a set of PRACH resources for at least one secondary cell.

  Here, for example, the base station apparatus transmits the setting regarding the PRACH for the primary cell and / or the setting regarding the PRACH for at least one secondary cell to the mobile station apparatus using RRC signaling (may be dedicated signaling). To do. A mobile station apparatus performs the setting regarding PRACH of a primary cell and / or at least one secondary cell according to the setting regarding PRACH contained in RRC signaling transmitted by the base station apparatus.

  Here, as described above, the secondary cell (the secondary cell in which the PRACH resource set is set and the secondary cell in which the PRACH resource set is set) in which the setting related to the PRACH is transmitted by the base station apparatus is also referred to as a secondary primary cell. . A carrier corresponding to the secondary primary cell in the downlink is also referred to as a downlink secondary primary component carrier (DLSPCC). A carrier corresponding to the secondary primary cell in the uplink is also referred to as an uplink secondary primary component carrier (ULSPCC).

  In FIG. 6, the serving cell 3 indicates a secondary primary cell. That is, the serving cell 3 is a secondary cell in which the setting related to PRACH is transmitted by the base station apparatus. For example, the secondary primary cell may be set from a secondary cell in a serving cell group that does not include the primary cell (serving group 2 in FIG. 6).

  Here, the base station apparatus transmits to the mobile station apparatus including the setting related to PRACH in the uplink setting for each serving cell. That is, the base station apparatus transmits to the mobile station apparatus including the setting for PRACH in the uplink setting for the primary cell. Also, the base station apparatus transmits to the mobile station apparatus including the setting for PRACH in the uplink setting for the secondary cell.

  That is, the setting of the secondary primary cell by the base station apparatus is linked to the setting of the uplink. A mobile station apparatus recognizes a secondary cell as a secondary primary cell, when the setting regarding PRACH is included in the setting of the uplink with respect to a secondary cell. Also, the mobile station apparatus recognizes the secondary cell as a (normal) secondary cell when the uplink setting for the secondary cell does not include the setting related to the PRACH. That is, in FIG. 6, the base station apparatus transmits to the mobile station apparatus including the setting related to PRACH in the uplink setting for serving cell 3.

  Here, the mobile station apparatus transmits the uplink control information to the base station apparatus using the PUCCH resource in the uplink subframe of the secondary primary cell. That is, the mobile station apparatus transmits uplink control information to the base station apparatus using the PUCCH resource in the uplink subframe of the secondary cell in which the PRACH resource is set by the base station apparatus.

  That is, in FIG. 6, the mobile station apparatus uses the PUCCH resource in the uplink subframe of either the primary cell or the secondary cell in which the PRACH resource is set by the base station apparatus to Send to station device.

  FIG. 7 is a diagram explaining a method of transmitting uplink control information by the mobile station apparatus. Here, FIG. 7 corresponds to FIG. In FIG. 7, as an example, the base station apparatus transmits 3 (uplink-downlink configuration: 3) as a subframe setting for the serving cell 1 and the serving cell 2 and 1 (uplink-downlink-configuration as a serving cell setting for the serving cell 3 and the serving cell 4 It shows that downlink configuration: 1) is transmitted.

  FIG. 7 shows subframes from subframe n-5 to subframe n + 10. In FIG. 7, D indicates a subframe reserved for downlink transmission (downlink subframe). U indicates a subframe (uplink subframe) reserved for uplink transmission. S indicates a special subframe.

  As described above, in FIG. 7, the mobile station apparatus transmits uplink control information using the PUCCH resource in the uplink subframe of either the primary cell or the secondary primary cell. Hereinafter, as an example, the operation when the mobile station apparatus transmits control information in HARQ will be described, but it is needless to say that the same operation can also be applied when transmitting other uplink control information.

  In FIG. 7, the mobile station apparatus uses the PUCCH resource allocated by the base station apparatus for PDSCH transmission indicated by detection of the corresponding PDCCH. At this time, for example, the mobile station apparatus uses a PUCCH format capable of transmitting control information in 20-bit HARQ. Also, for example, the mobile station apparatus uses a PUCCH format that can transmit control information in 20-bit HARQ and 1-bit scheduling request (a total of 21-bit uplink control information). The mobile station apparatus transmits control information in HARQ for downlink data (downlink transport block) transmitted using the PDSCH by the base station apparatus.

  Here, a downlink subframe corresponding to an uplink subframe in which control information in HARQ is transmitted by the mobile station apparatus is defined in advance according to specifications or the like. FIG. 8 illustrates an example of a downlink association set index K (also referred to as a downlink association set index) corresponding to an uplink subframe.

  In FIG. 8, for example, a mobile station apparatus to which 1 (uplink-downlink configuration: 1) is transmitted as a subframe setting is 6 subframes before (up to subframe number 6) in the uplink subframe of subframe number 2. Downlink data (corresponding to subframe number 5 in setting 1) and downlink data (corresponding to subframe number 5) transmitted 7 subframes ago (corresponding to subframe number 5) The control information in HARQ (s) for (number 5 is D) is transmitted.

  Similarly, for example, a mobile station apparatus to which 3 (uplink-downlink configuration: 3) is transmitted as a subframe setting corresponds to 4 subframes before (upperframe number 0) in the uplink subframe of subframe number 4. Downlink data (subframe number 0 is D in setting 3) and downlink data (subframe number in setting 3) transmitted 5 subframes ago (corresponding to subframe number 9) 9) transmits control information in HARQ for (multiple).

  Returning to FIG. 7, in subframe n, the mobile station apparatus transmits control information in HARQ using the PUCCH resource in the uplink subframe of the primary cell. Here, the mobile station apparatus transmits control information in HARQ for the downlink data transmitted in subframe n-5 and subframe n-4 according to the downlink relevance set index as shown in FIG.

  Here, when the subframe of the primary cell is an uplink subframe, the mobile station apparatus transmits control information in HARQ using PUCCH resources in the uplink subframe of the primary cell. That is, when the subframe of the primary cell is an uplink subframe and the subframe of the secondary primary cell is a downlink subframe, the mobile station apparatus uses the PUCCH resource in the uplink subframe of the primary cell, Control information in HARQ is transmitted.

  Further, when the subframe of the primary cell is a downlink subframe and the subframe of the secondary primary cell is an uplink subframe, the mobile station apparatus uses the PUCCH resource in the uplink subframe of the secondary primary cell. The control information in HARQ is transmitted. That is, at this time, when the PUCCH resource is set for the secondary primary cell, the mobile station apparatus transmits control information in HARQ using the PUCCH resource in the uplink subframe of the secondary primary cell. be able to.

  Further, when the subframe of the primary cell is an uplink subframe and the subframe of the secondary primary cell is an uplink subframe, the mobile station apparatus uses the PUCCH resource in the uplink subframe of the primary cell, Control information in HARQ is transmitted. That is, at this time, the mobile station apparatus transmits control information in HARQ using the PUCCH resource in the uplink subframe of the primary cell regardless of whether or not the PUCCH resource is set for the secondary primary cell. can do.

  That is, the mobile station apparatus selects (switches) a serving cell (primary cell or secondary primary cell) for transmitting control information in HARQ according to the setting of the subframe transmitted by the base station apparatus. That is, the mobile station apparatus selects (switches) a serving cell for transmitting control information in HARQ according to the subframe state of the primary cell and the subframe state of the secondary primary cell.

  That is, when the subframe of the primary cell is an uplink subframe, the mobile station apparatus transmits control information in HARQ using the PUCCH resource (always) in the uplink subframe of the primary cell. In addition, when the subframe of the primary cell is a downlink subframe, the mobile station apparatus confirms (recognizes) the subframe of the secondary primary cell, thereby acquiring the PUCCH resource in the uplink subframe of the secondary primary cell. It can be used to transmit control information in HARQ.

  Here, the mobile station apparatus can transmit control information in HARQ for (multiple) downlink data transmitted over all serving cells. That is, in subframe n, the mobile station apparatus performs control information in HARQ for downlink data transmitted in the primary cell and three secondary cells (including the secondary primary cell) in subframe n-5 and subframe n-4. Can be sent.

  That is, the downlink relevance set index when the mobile station apparatus transmits control information in HARQ is applied to all serving cells. The mobile station apparatus can transmit control information in HARQ for downlink data (plural) transmitted over all serving cells in the downlink subframe indicated by the downlink association set index.

  Also, when transmitting control information in HARQ for certain downlink data in a certain uplink subframe, the mobile station apparatus does not transmit control information in HARQ for the downlink data in another uplink frame. That is, the mobile station apparatus excludes (removes) the downlink subframe corresponding to the control information in HARQ already transmitted to the base station apparatus from the downlink subframes indicated by the downlink association set index.

  Further, in subframe n + 3, the mobile station apparatus transmits control information in HARQ using PUCCH resources in the uplink subframe of the secondary primary cell. Here, the mobile station apparatus transmits HARQ control information for the downlink data transmitted in subframe n-3 according to the downlink relevance set index and the HARQ control information already transmitted to the base station apparatus. That is, the mobile station apparatus that has already transmitted the control information in HARQ for the downlink data transmitted in subframe n-4 to the base station apparatus in subframe n, transmits the downlink data ( Control information in HARQ for (only).

  Further, in subframe n + 3, the mobile station apparatus transmits control information in HARQ using PUCCH resources in the uplink subframe of the secondary primary cell. As described above, when the subframe of the primary cell is a downlink subframe and the subframe of the secondary primary cell is an uplink subframe, the mobile station apparatus allocates the PUCCH resource in the uplink subframe of the secondary primary cell. Used to transmit control information in HARQ.

  Here, in subframe n + 3, the mobile station apparatus may transmit control information in HARQ for downlink data transmitted in the primary cell and three secondary cells (including the secondary primary cell) in subframe n-3. it can.

  Similarly, in subframe n + 4, the mobile station apparatus transmits control information in HARQ using PUCCH resources in the uplink subframe of the secondary primary cell. Here, in subframe n + 4, the mobile station apparatus can transmit control information in HARQ for the downlink data transmitted in the secondary cells (two including the secondary primary cell) in subframe n.

  Also, in subframe n + 8, the mobile station apparatus transmits control information in HARQ using the PUCCH resource in the uplink subframe of the primary cell. As described above, when the subframe of the primary cell is an uplink subframe and the subframe of the secondary primary cell is an uplink subframe, the mobile station apparatus uses the PUCCH resource in the uplink subframe of the primary cell. Then, control information in HARQ is transmitted.

  Here, in subframe n + 8, the mobile station apparatus transmits control information in HARQ for downlink data transmitted in the primary cell and three secondary cells (including the secondary primary cell) in subframe n + 1 and subframe n + 2. be able to.

  Similarly, in subframe n + 9, the mobile station apparatus transmits control information in HARQ using PUCCH resources in the uplink subframe of the primary cell. Here, in subframe n + 9, the mobile station apparatus can transmit control information in HARQ for downlink data transmitted in the primary cell and one secondary cell in subframe n + 3 and subframe n + 4.

  Similarly, in subframe n + 10, the mobile station apparatus transmits control information in HARQ using PUCCH resources in the uplink subframe of the primary cell. Here, in subframe n + 10, the mobile station apparatus can transmit control information in HARQ for downlink data transmitted in secondary cells (two including the secondary primary cell) in subframe n + 5 and subframe n + 6. .

  Here, when a plurality of secondary primary cells are set for the mobile station apparatus, the mobile station apparatus uses the PUCCH resource of the secondary primary cell selected based on one of the methods to control information in HARQ. Send. For example, the mobile station apparatus preferentially uses the PUCCH resource of the secondary primary cell with the smallest index number (cell index) allocated to the serving cell, and transmits control information in HARQ.

  As shown above, the mobile station apparatus transmits the uplink control information using the PUCCH resource transmitted in the uplink subframe of either the primary cell or the secondary primary cell, Uplink control information can be transmitted without delay, and efficient uplink control information can be transmitted.

  In addition, the mobile station apparatus uses the PUCCH resource transmitted in the uplink subframe of either the primary cell or the secondary primary cell to transmit uplink control information, so that a plurality of pieces of information in the same subframe are transmitted. Transmission of uplink control information using PUCCH resources can be avoided, and transmission power in the mobile station apparatus can be kept low.

  Further, the mobile station apparatus transmits uplink control information using the PUCCH resource transmitted in the secondary cell in which the PRACH resource is set by the base station apparatus, so that the base station apparatus transmits uplink control information. It is no longer necessary to explicitly indicate the secondary cell (secondary primary cell) used for the transmission, and efficient uplink control information can be transmitted.

(Second Embodiment)
Next, a second embodiment in a mobile communication system using the base station device 100 and the mobile station device 200 will be described. In the second embodiment, the base station apparatus transmits information instructing the setting of downlink and uplink subframes for each serving cell to the mobile station apparatus, and the mobile station apparatus detects the PDCCH by detecting the PDCCH. When the PDSCH transmission in the secondary cell different from the secondary cell in which the PRACH resource is set by the station apparatus is instructed, the PUCCH resource instructed by the downlink control information transmitted in the detected PDCCH is used, Transmit uplink control information.

  Also, the mobile station apparatus transmits uplink control information to the base station apparatus with transmission power set according to downlink control information transmitted on the PDCCH instructing PDSCH transmission in the secondary cell in which the PRACH resource is set. To do. That is, a mobile station apparatus transmits PUCCH (PUCCH resource) with the transmission power set according to the downlink control information transmitted by PDCCH which instruct | indicates PDSCH transmission in the secondary cell in which the PRACH resource was set.

  The base station apparatus transmits information instructing setting of downlink and uplink subframes for each serving cell to the mobile station apparatus, and the mobile station apparatus transmits uplink control information to the PUCCH in the uplink subframe of the primary cell. When transmitting using resources, the downlink control information transmitted on the PDCCH instructing the PDSCH transmission in the secondary cell in which the PRACH resource is set by the base station apparatus is used to indicate the PUCCH resource. When the uplink control information is transmitted using the PUCCH resource in the uplink subframe of the secondary cell in which the PRACH resource is set, the secondary control cell in which the PRACH resource is set is used. That directs PDSCH transmission In the downlink control information to be transmitted, to interpret the information that is used to set the transmission power when transmitting uplink control information (recognition).

  Here, the uplink control information includes channel state information. Further, the uplink control information includes control information in HARQ. Further, the uplink control information includes a scheduling request. In addition, a radio frame structure applied to at least TDD is supported by the base station apparatus and the mobile station apparatus.

  The second embodiment will be described with reference to FIG. The second embodiment can be applied to the base station apparatus and mobile station apparatus as described in the first embodiment. As described in the first embodiment, in FIG. 6, the base station apparatus transmits information instructing setting of downlink and uplink subframes for each serving cell to the mobile station apparatus, and the mobile station apparatus The uplink control information is transmitted using the PUCCH resource transmitted in the uplink subframe of either the primary cell or the secondary primary cell.

  In FIG. 6, the base station apparatus allocates a PUCCH resource used by the mobile station apparatus to transmit uplink control information in the uplink subframe of the primary cell. Further, the base station apparatus allocates a PUCCH resource used by the mobile station apparatus to transmit uplink control information in the uplink subframe of the secondary primary cell.

  Here, in FIG. 6, the base station apparatus sets four PUCCH resource candidates using RRC signaling (may be dedicated signaling). Further, the base station apparatus instructs one PUCCH resource from among the set four PUCCH resource candidates using downlink control information included in the DCI format transmitted on the PDCCH. Here, the downlink control information used for the base station apparatus to indicate one PUCCH resource from among the set four PUCCH resource candidates is represented by ARI (ACK Resource Indicator: for example, 2-bit information). Also indicated).

  That is, the mobile station apparatus uses the PUCCH resource indicated by the ARI value transmitted on the detected PDCCH for the PDSCH transmission indicated by detection of the corresponding PDCCH. That is, the mobile station apparatus uses the PUCCH resource indicated by the ARI value for transmission of control information in HARQ. Here, in FIG. 6, the base station apparatus does not schedule the PDSCH transmission in the primary cell by the PDCCH transmitted by the serving other than the primary cell.

  As described above, the base station apparatus uses a TPC command for PUCCH (for example, also described as a TPC field indicated by 2-bit information) or DAI (for example, 2-bit) for the DCI format used for PDSCH scheduling. Including downlink control information (indicated by the information).

  Here, the DAI (DAI value) includes information indicating the cumulative number of PDCCH to which PDSCH transmission is assigned (accumulative number of PDCCH (s) with assigned PDSCH transmission (s)). That is, the DAI value included in the DCI format transmitted on the PDCCH is updated for each subframe (from subframe to subframe).

  First, a method for determining a PUCCH resource used for a mobile station apparatus to transmit uplink control information in an uplink subframe of a primary cell will be described.

  In FIG. 6, the mobile station apparatus determines the ARI value for the PDSCH transmission only in the primary cell indicated by the detection of the PDCCH whose DAI value is larger than 1 (the DAI value included in the DCI format is larger than 1). The PUCCH resource indicated by is used. For example, the mobile station apparatus transmits uplink control information using the PUCCH resource indicated by the ARI value from among the set four PUCCH resource candidates (four PUCCH resource values).

  Here, the PUCCH resource is a TPC field (2-bit information field to which a TPC command is mapped) included in the DCI format transmitted by the mobile station apparatus detected by the PDCCH, and an ARI field (ARI value is mapped). 2 bit information field). Further, at this time, the mobile station apparatus counts the number M of elements indicated by the downlink relevance set index K as shown in FIG. 8 (for example, the downlink corresponding to the uplink subframe transmitting control information in HARQ). When the number of link subframes) is larger than 1, the PUCCH resource indicated by the ARI value may be used.

  That is, the mobile station apparatus determines the PUCCH resource used for transmitting the uplink control information according to the setting by RRC signaling and the PUCCH resource indicated by the ARI.

  At this time, the mobile station apparatus also includes a TPC field (TPC field) included in the DCI format transmitted on the PDCCH with a DAI value of 1 (indicating that the DAI value included in the DCI format is 1) instructing PDSCH transmission in the primary cell. Uplink control information (may be PUCCH) is transmitted with transmission power set according to the command.

  That is, the mobile station apparatus uses 2-bit information (2-bit information field) based on whether the DAI value transmitted on the PDCCH instructing PDSCH transmission only in the primary cell is 1 or larger than 1. Change the interpretation of. That is, when the DAI value is larger than 1, the mobile station apparatus interprets 2-bit information (2-bit information field) as an ARI value (ARI field). When the DAI value is 1, the mobile station apparatus interprets 2-bit information (2-bit information field) as a TPC command (TPC field).

  Here, when a plurality of PDCCHs having a DAI value larger than 1 are transmitted in the same subframe, the mobile station apparatus transmits PUCCH resources (values of PUCCH resources) indicated by ARI values included in all PDCCHs. ) Are assumed to be the same.

  Further, the mobile station apparatus uses the PUCCH resource indicated by the ARI value for PDSCH transmission in the secondary cell indicated by the detection of the PDCCH. That is, when the mobile station apparatus is instructed to transmit PDSCH in the secondary cell by detecting PDDCH (DAI value is greater than 1 or 1), the ARI included in the DCI format transmitted on the detected PDDCH Use the PUCCH resource indicated by the value.

  Subsequently, a method for determining a PUCCH resource used for the mobile station apparatus to transmit uplink control information in the uplink subframe of the secondary primary cell will be described.

  Similar to the method for determining the PUCCH resource in the primary cell, for example, the mobile station apparatus uses the PUCCH resource indicated by the ARI value from among the set four PUCCH resource candidates (four PUCCH resource values). Then, uplink control information is transmitted. That is, the mobile station apparatus determines the PUCCH resource used for transmitting the uplink control information according to the setting by RRC signaling and the PUCCH resource indicated by the ARI value.

  That is, the base station apparatus can set four PUCCH resource candidates for the primary cell and four PUCCH resource candidates for the secondary primary cell to the mobile station apparatus. For example, the base station apparatus can set two PUCCH resource sets, each of which includes four PUCCH resource values, in the mobile station apparatus.

  In FIG. 6, the mobile station apparatus uses the PUCCH resource indicated by the ARI value for PDSCH transmission in a secondary cell different from the secondary primary cell indicated by detection of PDCCH. That is, when the mobile station apparatus is instructed to transmit PDSCH in a secondary cell different from the secondary primary cell by detecting PDDCH (DAI value is greater than 1 or 1), the mobile station apparatus uses the detected PDDCH. The PUCCH resource indicated by the ARI value included in the transmitted DCI format is used.

  At this time, the mobile station apparatus uses the uplink control information (with the transmission power set according to the TPC field (TPC command) included in the DCI format transmitted in the PDCCH instructing the transmission of the PDSCH in the secondary primary cell). PUCCH may be used).

  That is, the mobile station apparatus has 2 bits based on whether the detected PDCCH indicates PDSCH transmission in a secondary cell different from the secondary primary cell or PDSCH transmission in the secondary primary cell. The interpretation of the information (2-bit information field) is changed.

  That is, when the detected PDCCH indicates PDSCH transmission in a secondary cell different from the secondary primary cell, the mobile station apparatus uses 2-bit information (2-bit information field) as an ARI value (ARI field). ). In addition, when the detected PDCCH indicates PDSCH transmission in the secondary primary cell, the mobile station apparatus interprets 2-bit information (2-bit information field) as a TPC command (TPC field).

  Here, when a plurality of PDCCHs instructing transmission of a plurality of PDSCHs in a plurality of secondary cells other than the secondary primary cell are transmitted in the same subframe, the mobile station apparatus includes an ARI value included in all PDCCHs. It is assumed that the PUCCH resource (value of the PUCCH resource) indicated by is the same.

  As described above, when transmitting the uplink control information in the uplink subframe of the primary cell, the mobile station apparatus is instructed by the ARI value when detecting the PDCCH instructing the PDSCH transmission in the secondary cell. The uplink control information is transmitted using the PUCCH resource. Here, the secondary primary cell is included in this secondary cell.

  In addition, when the mobile station apparatus detects the PDCCH instructing PDSCH transmission in the secondary primary cell when transmitting the uplink control information in the uplink subframe of the secondary primary cell, the TPC field (TPC command) The uplink control information is transmitted with the transmission power set according to.

  That is, the mobile station apparatus transmits 2-bit information transmitted on the PDCCH instructing PDSCH transmission in the secondary primary cell based on whether the uplink control information is transmitted in the primary cell or the secondary primary cell. Change the interpretation for (2-bit information field).

  That is, when transmitting the uplink control information in the primary cell, the mobile station apparatus transmits 2-bit information (2-bit information field) transmitted on the PDCCH instructing PDSCH transmission in the secondary primary cell (secondary cell). ) Is interpreted as an ARI value (ARI field). When transmitting uplink control information in the secondary primary cell, the mobile station apparatus transmits 2-bit information (2-bit information) transmitted on the PDCCH instructing PDSCH transmission in the secondary primary cell (secondary cell). Field) is interpreted as a TPC command (TPC field).

  As described above, the mobile station apparatus transmits uplink control information by using one instructed PUCCH resource from among a plurality of PUCCH resources set by the base station apparatus. PUCCH resources used for transmission of link control information can be flexibly allocated, and efficient transmission of uplink control information becomes possible.

  In addition, when the mobile station apparatus transmits uplink control information in the primary cell, it interprets the TPC field transmitted on the PDCCH instructing PDSCH transmission in the secondary cell as an ARI field, thereby indicating the PUCCH resource instruction. There is no need to newly define an information field to be used, and it is possible to efficiently transmit uplink control information.

  When the mobile station apparatus transmits uplink control information in the secondary primary cell, the mobile station apparatus interprets the TPC field transmitted on the PDCCH instructing the PDSCH transmission in the secondary cell other than the secondary primary cell as the ARI field. Therefore, it is not necessary to newly define an information field used for indicating a PUCCH resource, and it is possible to efficiently transmit uplink control information.

  Further, the mobile station apparatus changes the interpretation of the TPC field transmitted on the PDCCH instructing the PDSCH transmission in the secondary primary cell based on the serving cell (primary cell, secondary primary cell) that transmits the uplink control information. Thus, it is possible to avoid a TPC command mismatch when transmitting uplink control information in a primary cell, and as a result, it is possible to efficiently transmit uplink control information. That is, when the mobile station apparatus transmits uplink control information in the primary cell, the value set in the TPC field transmitted in the PDCCH instructing PDSCH transmission in the primary cell and the PDSCH transmission in the secondary primary cell It is possible to avoid a mismatch between values set in the TPC field transmitted on the PDCCH instructing.

  The embodiment described above is also applied to an integrated circuit 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.

  The “computer-readable recording medium” refers to a storage device such as a flexible medium, 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.

  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.

100 base station apparatus 101 data control section 102 transmission data modulation section 103 radio section 104 scheduling section 105 channel estimation section 106 reception data demodulation section 107 data extraction section 108 upper layer 109 antenna 110 radio resource control section 200 mobile station apparatus 201 data control section 202 Transmission data modulation section 203 Radio section 204 Scheduling section 205 Channel estimation section 206 Reception data demodulation section 207 Data extraction section 208 Upper layer 209 Antenna 210 Radio resource control section

Claims (24)

A mobile communication system in which a base station apparatus and a mobile station apparatus communicate using a plurality of serving cells,
The base station device
Transmitting information instructing the setting of downlink and uplink subframes for each serving cell to the mobile station apparatus;
The mobile station device
The uplink control information is transmitted to the base station apparatus using the physical uplink control channel resource in the uplink subframe of the secondary cell in which the physical random access channel resource is set by the base station apparatus. Mobile communication system. A mobile communication system in which a base station apparatus and a mobile station apparatus communicate using a plurality of serving cells,
The base station device
Transmitting information instructing the setting of downlink and uplink subframes for each serving cell to the mobile station apparatus;
The mobile station device
Using the physical uplink control channel resource in the uplink subframe of either the primary cell or the secondary cell in which the physical random access channel resource is set by the base station apparatus, uplink control information is transmitted to the base station apparatus. The mobile communication system characterized by transmitting to. The mobile station device
When the subframe of the primary cell is an uplink subframe, the uplink control information is transmitted to the base station apparatus using the physical uplink control channel resource of the primary cell. The mobile communication system according to claim 2. The mobile station device
When the subframe of the primary cell is an uplink subframe and the subframe of the secondary cell in which the physical random access channel resource is set is an uplink subframe, the physical uplink control channel resource of the primary cell is The mobile communication system according to claim 2, wherein the uplink control information is used and transmitted to the base station apparatus. The mobile station device
When the subframe of the primary cell is a downlink subframe and the subframe of the secondary cell in which the physical random access channel resource is set is an uplink subframe, the secondary cell in which the physical random access channel resource is set The mobile communication system according to claim 2, wherein the uplink control information is transmitted to the base station apparatus using the physical uplink control channel resource. A mobile communication system in which a base station apparatus and a mobile station apparatus communicate using a plurality of serving cells,
The base station device
Transmitting information instructing the setting of downlink and uplink subframes for each serving cell to the mobile station apparatus;
The mobile station device
When physical downlink shared channel transmission is instructed in a secondary cell different from the secondary cell in which the physical random access channel resource is set by the base station device by detecting a physical downlink control channel,
A mobile communication system, wherein uplink control information is transmitted to the base station apparatus using a physical uplink control channel resource indicated by downlink control information transmitted on the physical downlink control channel. The mobile station device
The uplink control information is a transmission power set in accordance with downlink control information transmitted in a physical downlink control channel that instructs physical downlink shared channel transmission in a secondary cell in which the physical random access channel resource is set. The mobile communication system according to claim 6, wherein the mobile communication system transmits to the base station apparatus. A mobile communication system in which a base station apparatus and a mobile station apparatus communicate using a plurality of serving cells,
The base station device
Transmitting information instructing the setting of downlink and uplink subframes for each serving cell to the mobile station apparatus;
The mobile station device
When transmitting uplink control information using the physical uplink control channel resource in the uplink subframe of the primary cell,
The downlink control information transmitted in the physical downlink control channel indicating the physical downlink shared channel in the secondary cell in which the physical random access channel resource is set by the base station apparatus, and the physical uplink control channel resource Interpreted as information used to
When transmitting uplink control information using a physical uplink control channel resource in an uplink subframe of a secondary cell in which the physical random access channel resource is set,
The mobile communication system, wherein the downlink control information is interpreted as information used for setting transmission power when transmitting the uplink control information. A base station device that communicates with a mobile station device using a plurality of serving cells,
A unit for transmitting information instructing setting of downlink and uplink subframes for each serving cell to the mobile station apparatus;
A unit for receiving uplink control information from the mobile station apparatus using a physical uplink control channel resource in an uplink subframe of a secondary cell in which a physical random access channel resource is set by the base station apparatus;
A base station apparatus comprising: A base station device that communicates with a mobile station device using a plurality of serving cells,
A unit for transmitting information instructing setting of downlink and uplink subframes for each serving cell to the mobile station apparatus;
Using the physical uplink control channel resource in the uplink subframe of either the primary cell or the secondary cell in which the physical random access channel resource is set by the base station device, uplink control information is transmitted to the mobile station device. A unit to receive from
A base station apparatus comprising: A base station device that communicates with a mobile station device using a plurality of serving cells,
A unit for transmitting information instructing setting of downlink and uplink subframes for each serving cell to the mobile station apparatus;
When the mobile station apparatus detects a physical downlink control channel, an instruction to transmit a physical downlink shared channel in a secondary cell different from a secondary cell in which a physical random access channel resource is set by the base station apparatus is instructed. in case of,
A unit for receiving uplink control information from the mobile station apparatus using physical uplink control channel resources indicated by downlink control information transmitted on the physical downlink control channel;
A base station apparatus comprising: A base station device that communicates with a mobile station device using a plurality of serving cells,
A unit for transmitting information instructing setting of downlink and uplink subframes for each serving cell to the mobile station apparatus;
When the mobile station device transmits the uplink control information using the physical uplink control channel resource in the uplink subframe of the primary cell,
The downlink control information transmitted in the physical downlink control channel indicating the physical downlink shared channel in the secondary cell in which the physical random access channel resource is set by the base station apparatus, and the physical uplink control channel resource A unit that interprets the information used to
When the mobile station device transmits uplink control information using a physical uplink control channel resource in an uplink subframe of a secondary cell in which the physical random access channel resource is set,
A unit that interprets the downlink control information as information used to set transmission power when transmitting the uplink control information;
A base station apparatus comprising: A mobile station apparatus that communicates with a base station apparatus using a plurality of serving cells,
A unit that receives information instructing setting of downlink and uplink subframes for each serving cell from the base station apparatus;
A unit for transmitting uplink control information to the base station apparatus using a physical uplink control channel resource in an uplink subframe of a secondary cell in which a physical random access channel resource is set by the base station apparatus;
A mobile station apparatus comprising: A mobile station apparatus that communicates with a base station apparatus using a plurality of serving cells,
A unit that receives information instructing setting of downlink and uplink subframes for each serving cell from the base station apparatus;
Using the physical uplink control channel resource in the uplink subframe of either the primary cell or the secondary cell in which the physical random access channel resource is set by the base station apparatus, uplink control information is transmitted to the base station apparatus. A unit to send to
A mobile station apparatus comprising: A mobile station apparatus that communicates with a base station apparatus using a plurality of serving cells,
A unit that receives information instructing setting of downlink and uplink subframes for each serving cell from the base station apparatus;
When physical downlink shared channel transmission is instructed in a secondary cell different from the secondary cell in which the physical random access channel resource is set by the base station device by detecting a physical downlink control channel,
A unit for transmitting uplink control information to the base station apparatus using a physical uplink control channel resource indicated by downlink control information transmitted on the physical downlink control channel;
A mobile station apparatus comprising: A mobile station apparatus that communicates with a base station apparatus using a plurality of serving cells,
A unit that receives information instructing setting of downlink and uplink subframes for each serving cell from the base station apparatus;
When transmitting uplink control information using the physical uplink control channel resource in the uplink subframe of the primary cell,
The downlink control information transmitted in the physical downlink control channel indicating the physical downlink shared channel in the secondary cell in which the physical random access channel resource is set by the base station apparatus, and the physical uplink control channel resource A unit that interprets the information used to
When transmitting uplink control information using a physical uplink control channel resource in an uplink subframe of a secondary cell in which the physical random access channel resource is set,
A unit that interprets the downlink control information as information used to set transmission power when transmitting the uplink control information;
A mobile station apparatus comprising: A communication method of a base station apparatus that communicates with a mobile station apparatus using a plurality of serving cells,
Transmitting information instructing the setting of downlink and uplink subframes for each serving cell to the mobile station apparatus;
The uplink control information is received from the mobile station apparatus using the physical uplink control channel resource in the uplink subframe of the secondary cell in which the physical random access channel resource is set by the base station apparatus. Communication method. A communication method of a base station apparatus that communicates with a mobile station apparatus using a plurality of serving cells,
Transmitting information instructing the setting of downlink and uplink subframes for each serving cell to the mobile station apparatus;
Using the physical uplink control channel resource in the uplink subframe of either the primary cell or the secondary cell in which the physical random access channel resource is set by the base station device, uplink control information is transmitted to the mobile station device. The communication method characterized by receiving from. A communication method of a base station apparatus that communicates with a mobile station apparatus using a plurality of serving cells,
Transmitting information instructing the setting of downlink and uplink subframes for each serving cell to the mobile station apparatus;
When the mobile station apparatus detects a physical downlink control channel, an instruction to transmit a physical downlink shared channel in a secondary cell different from a secondary cell in which a physical random access channel resource is set by the base station apparatus is instructed. in case of,
A communication method comprising: receiving uplink control information from the mobile station apparatus using a physical uplink control channel resource indicated by downlink control information transmitted on the physical downlink control channel. A communication method of a base station apparatus that communicates with a mobile station apparatus using a plurality of serving cells,
Transmitting information instructing the setting of downlink and uplink subframes for each serving cell to the mobile station apparatus;
When the mobile station device transmits the uplink control information using the physical uplink control channel resource in the uplink subframe of the primary cell,
The downlink control information transmitted in the physical downlink control channel indicating the physical downlink shared channel in the secondary cell in which the physical random access channel resource is set by the base station apparatus, and the physical uplink control channel resource Interpreted as information used to
When the mobile station device transmits uplink control information using a physical uplink control channel resource in an uplink subframe of a secondary cell in which the physical random access channel resource is set,
The communication method, wherein the downlink control information is interpreted as information used to set transmission power when transmitting the uplink control information. A communication method of a mobile station apparatus that communicates with a base station apparatus using a plurality of serving cells,
Receiving from the base station apparatus information instructing setting of downlink and uplink subframes for each serving cell;
The uplink control information is transmitted to the base station apparatus using the physical uplink control channel resource in the uplink subframe of the secondary cell in which the physical random access channel resource is set by the base station apparatus. Communication method. A communication method of a mobile station apparatus that communicates with a base station apparatus using a plurality of serving cells,
Receiving from the base station apparatus information instructing setting of downlink and uplink subframes for each serving cell;
Using the physical uplink control channel resource in the uplink subframe of either the primary cell or the secondary cell in which the physical random access channel resource is set by the base station apparatus, uplink control information is transmitted to the base station apparatus. The communication method characterized by transmitting to. A communication method of a mobile station apparatus that communicates with a base station apparatus using a plurality of serving cells,
Receiving from the base station apparatus information instructing setting of downlink and uplink subframes for each serving cell;
When physical downlink shared channel transmission is instructed in a secondary cell different from the secondary cell in which the physical random access channel resource is set by the base station device by detecting a physical downlink control channel,
A communication method comprising: transmitting uplink control information to the base station apparatus using a physical uplink control channel resource indicated by downlink control information transmitted on the physical downlink control channel. A communication method of a mobile station apparatus that communicates with a base station apparatus using a plurality of serving cells,
Receiving from the base station apparatus information instructing setting of downlink and uplink subframes for each serving cell;
When transmitting uplink control information using the physical uplink control channel resource in the uplink subframe of the primary cell,
The downlink control information transmitted in the physical downlink control channel indicating the physical downlink shared channel in the secondary cell in which the physical random access channel resource is set by the base station apparatus, and the physical uplink control channel resource Interpreted as information used to
When transmitting uplink control information using a physical uplink control channel resource in an uplink subframe of a secondary cell in which the physical random access channel resource is set,
The communication method, wherein the downlink control information is interpreted as information used to set transmission power when transmitting the uplink control information.