JP2020031249A - Base station device, terminal device, communication method, and integrated circuit - Google Patents

Abstract

To provide a base station device, a terminal device, a communication method, and an integrated circuit, efficiently performing CSI (Channel State Information) reporting.SOLUTION: A terminal device receives first information including one or a plurality of first settings, second information including one or a plurality of second settings, third information including one or a plurality of third settings, and fourth information, and measures and reports channel state information. The first settings are settings for one or a plurality of reports on the channel state information, each of the settings including one first index. The second settings are settings on one or a plurality of reference signals for measuring the channel state information, each of the settings including one second index. The third settings each include one index among the first indexes, one index among the second indexes, and one third index. The fourth information includes information indicating one or a plurality of the third indexes.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a base station device, a terminal device, a communication method, and an integrated circuit.

  Currently, LTE (Long Term Evolution) -Advanced Pro and NR (New Radio) are being used in the Third Generation Partnership Project (3GPP) as a wireless access method and wireless network technology for the fifth generation cellular system. technology) and standard formulation (Non-Patent Document 1).

In the fifth generation cellular system, eMBB (enhanced Mobile BroadBand) realizes high-speed and large-capacity transmission, and URLLC (Ultra-Reliable and Low Latency) realizes low-delay and high-reliability communication
Communication) and mmtc (massive machine type communication) to which a number of machine-type devices such as IoT (Internet of Things) are connected are required as assumed scenarios for services.

  In NR, a technology study of massive MIMO (Multiple-Input Multiple-Output) for securing coverage by beamforming gain using a large number of antenna elements at a high frequency is being performed (Non-Patent Documents 2 and 3, Non-patent document 4).

RP-161214 NTT DOCOMO, “Revision of SI: Study on New Radio Access Technology”, June 2016 R1-162883, Nokia, Alcatel-Lucent Shanghai Bell, “Basic principles for the 5G New Radio access technology”, April 2016 R1-162380, Intel Corporation, “Overview of antenna technology for new radio interface”, April 2016 R1-163215, Ericsson, “Overview of NR”, April 2016

  It is an object of the present invention to provide a base station apparatus and a terminal apparatus that efficiently provide a terminal apparatus, a base station apparatus, a communication method, and an integrated circuit in the above wireless communication system.

(1) In order to achieve the above object, the embodiment of the present invention has taken the following measures. That is, a terminal device according to one aspect of the present invention is a terminal device that communicates with a base station device, receives first information including one or more first settings, and receives one or more second settings. Receiving a second information including a third setting, receiving third information including one or more third settings, and receiving a fourth information; and a channel state measuring channel state information. A measuring unit, and a transmitting unit for reporting the channel state information, wherein the first setting is a setting for one or more reports of the channel state information, and the one or more reports Each of the settings for one or more reference signals for measuring the channel state information, and wherein the second settings are for one or more reference signals for measuring the channel state information. Settings for the reference signal Each includes one second index, and the third setting includes one index of the first index, one index of the second index, and one third index. And the fourth information includes information indicating one or more of the third indexes.

  (2) In the terminal device according to an aspect of the present invention, one or more third settings are specified based on one or more third indexes included in the fourth information, One or more first settings and one or more second settings are specified based on the one or more third settings specified, and one or more of the specified one or more third settings are specified. One or more channel state information reports are transmitted based on the first configuration and the one or more second configurations.

  (3) In the terminal device according to an aspect of the present invention, the one or more channel state information reports are transmitted by a procedure in a physical layer.

  (4) Further, in the terminal device according to an aspect of the present invention, the transmission unit transmits the channel state information including one of the third indexes.

  (5) Further, in the terminal device according to an aspect of the present invention, the receiving unit may further receive fifth information including one or more fourth settings, receive sixth information, and 4 are settings related to one or more interference measurement resources for measuring the channel state information, and each of the settings related to the one or more interference measurement resources includes one fourth index. , The third setting further includes one of the fourth indexes.

  (6) Further, the base station device according to one aspect of the present invention is a base station device that communicates with a terminal device, transmits first information including one or a plurality of first settings, A transmitting unit that transmits second information including a plurality of second settings, transmits third information including one or a plurality of third settings, and transmits fourth information; A channel receiving unit for receiving, wherein the first setting is a setting for one or more reports of the channel state information, and each of the settings for the one or more reports is: Including one first index, the second setting is a setting related to one or more reference signals for measuring the channel state information, and each of the setting related to the one or more reference signals is , Including one second index , The third setting includes one index of the first index, one index of the second index, and one third index, and the fourth information includes: The information includes one or more of the third indexes.

  (7) Also, in the base station apparatus according to one aspect of the present invention, one or more of the third settings based on one or a plurality of the third indexes included in the fourth information are set. Receive one or more channel state information reports.

  (8) In the base station device according to one aspect of the present invention, the one or more channel state information reports are received by a procedure in a physical layer.

  (9) In the base station device according to one aspect of the present invention, the channel state information includes one of the third indexes.

(10) Further, in the base station apparatus according to an aspect of the present invention, the transmitting unit further transmits fifth information including one or more fourth settings and sixth information, and transmits the fourth information. Is a setting related to one or more interference measurement resources for measuring the channel state information, each of the settings related to the one or more interference measurement resources includes one third index, The third setting further includes one of the fourth indexes.

  (11) A communication method according to an aspect of the present invention is a communication method for a terminal device that communicates with a base station device, the method including receiving first information including one or a plurality of first settings, Receiving second information including one or more second settings, receiving third information including one or more third settings, receiving fourth information, and measuring channel state information And reporting the channel state information, wherein the first setting is a setting for one or more reports of the channel state information, and each of the settings for the one or more reports is: Including one first index, the second setting is a setting related to one or more reference signals for measuring the channel state information, and each of the setting related to the one or more reference signals is One second index And the third setting includes one index of the first index, one index of the second index, and one third index, and the fourth information includes , And information indicating one or more of the third indexes.

  (12) Further, a communication method according to an aspect of the present invention is a communication method of a base station apparatus communicating with a terminal apparatus, wherein the first information including one or a plurality of first settings is transmitted, and Transmitting second information including one or more second settings, transmitting third information including one or more third settings, transmitting fourth information, and receiving channel state information And, the first setting is a setting for one or more reports of the channel state information, and each of the settings for the one or more reports includes one first index. , The second setting is a setting related to one or more reference signals for measuring the channel state information, and each of the setting related to the one or more reference signals is one second index. The third setting includes the third setting One of the indexes, one of the second indexes, and a third index, wherein the fourth information is one or more of the third indexes. Is included.

  (13) The integrated circuit according to one aspect of the present invention is an integrated circuit mounted on a terminal device that communicates with a base station device, and receives first information including one or a plurality of first settings. Receiving means for receiving second information including one or more second settings, receiving third information including one or more third settings, and receiving fourth information; , Channel state measuring means for measuring channel state information, and transmitting means for reporting the channel state information, wherein the first setting is a setting for one or more reports of the channel state information. And each of the settings for the one or more reports includes one first index, and the second setting relates to one or more reference signals for measuring the channel state information. Settings, and the one or Each of the settings for the plurality of reference signals includes one second index, and the third setting includes one index of the first index, one index of the second index, A third index, and the fourth information includes information indicating one or more of the third indexes.

(14) Further, the integrated circuit according to one aspect of the present invention is an integrated circuit mounted on a base station device that communicates with a terminal device, and transmits first information including one or a plurality of first settings. Transmitting means for transmitting second information including one or more second settings, transmitting third information including one or more third settings, and transmitting fourth information; , Channel receiving means for receiving channel state information, wherein the first setting is a setting for one or more reports of the channel state information, and is a setting for the one or more reports. Each of the settings includes one first index, the second setting is a setting related to one or more reference signals for measuring the channel state information, and the one or more reference signals Each of the settings for A second index, wherein the third setting includes one index of the first index, one index of the second index, and one third index; The fourth information includes information indicating one or more of the third indexes.

  ADVANTAGE OF THE INVENTION According to this invention, a base station apparatus and a terminal device can communicate efficiently.

It is a figure showing the concept of the wireless communication system in this embodiment. FIG. 3 is a diagram illustrating an example of a schematic configuration of a downlink slot in the present embodiment. FIG. 3 is a diagram showing a relationship in a time domain between subframes, slots, and minislots. FIG. 3 is a diagram illustrating an example of a slot or a subframe. FIG. 3 is a diagram illustrating an example of beam forming. FIG. 2 is a schematic block diagram illustrating a configuration of a terminal device 1 according to the embodiment. FIG. 2 is a schematic block diagram illustrating a configuration of a base station device 3 according to the present embodiment.

  Hereinafter, embodiments of the present invention will be described.

  FIG. 1 is a conceptual diagram of a wireless communication system according to the present embodiment. In FIG. 1, the wireless communication system includes terminal devices 1A to 1C and a base station device 3. Hereinafter, the terminal devices 1A to 1C are also referred to as a terminal device 1.

The terminal device 1 is also called a user terminal, a mobile station device, a communication terminal, a mobile device, a terminal, a UE (User Equipment), and an MS (Mobile Station). The base station device 3 includes a radio base station device, a base station, a radio base station, a fixed station, an NB (Node B), an eNB (evolved Node B), a BTS (Base Transceiver Station), a BS (Base Station), and an NR NB ( NR Node B), NNB, T
Also called RP (Transmission and Reception Point), gNB.

In FIG. 1, in wireless communication between the terminal device 1 and the base station device 3, orthogonal frequency division multiplexing (OFDM) including a cyclic prefix (CP) and single carrier frequency multiplexing (SC- FDM: Single-Carrier Frequency Division Multiplexing, Discrete Fourier Transform Spread OFDM (DFT-S-OFDM: Discrete
Fourier Transform Spread OFDM and Multi-Carrier Code Division Multiplexing (MC-CDM) may be used.

  In FIG. 1, in wireless communication between the terminal device 1 and the base station device 3, a universal-filtered multi-carrier (UFMC), a filter OFDM (F-OFDM: Filtered OFDM), and a window function are used. Multiplied OFDM (Windowed OFDM) and Filter Bank Multi-Carrier (FBMC) may be used.

  In this embodiment, OFDM symbols will be described using OFDM as a transmission method, but the present invention includes a case using the above-described other transmission methods.

  In FIG. 1, the wireless communication between the terminal device 1 and the base station device 3 may use the above-described transmission method that does not use a CP or performs zero padding instead of the CP. Also, the CP and zero padding may be added to both the front and the rear.

In FIG. 1, in wireless communication between the terminal device 1 and the base station device 3, orthogonal frequency division multiplexing (OFDM) including a cyclic prefix (CP) and single carrier frequency multiplexing (SC- FDM: Single-Carrier Frequency Division Multiplexing, Discrete Fourier Transform Spread OFDM (DFT-S-OFDM: Discrete
Fourier Transform Spread OFDM and Multi-Carrier Code Division Multiplexing (MC-CDM) may be used.

  In FIG. 1, the following physical channels are used in wireless communication between the terminal device 1 and the base station device 3.

・ PBCH (Physical Broadcast CHannel)
・ PCCH (Physical Control CHannel)
・ PSCH (Physical Shared CHannel)

  The PBCH is used to broadcast an important information block (MIB: Master Information Block, EIB: Essential Information Block, BCH: Broadcast Channel) including important system information required by the terminal device 1.

The PCCH is used for transmitting uplink control information (Uplink Control Information: UCI) in the case of uplink wireless communication (wireless communication from the terminal device 1 to the base station device 3). Here, the uplink control information may include channel state information (CSI: Channel State Information) used to indicate the state of the downlink channel. Further, the uplink control information may include a scheduling request (SR: Scheduling Request) used for requesting a UL-SCH resource. The uplink control information may include HARQ-ACK (Hybrid Automatic Repeat request Acknowledgment). HARQ-ACK is downlink data (Transport block, Medium Access).
HARQ-ACK for Control Protocol Data Unit: MAC PDU, Downlink-Shared Channel: DL-SCH) may be indicated.

Further, in the case of downlink wireless communication (wireless communication from the base station device 3 to the terminal device 1), it is used to transmit downlink control information (Downlink Control Information: DCI). Here, one or a plurality of DCIs (which may be referred to as DCI formats) are defined for transmission of downlink control information. That is, a field for downlink control information is defined as DCI and is mapped to information bits.

  For example, DCI may be defined as DCI including information indicating whether a signal included in the scheduled PSCH is downlink wireless communication or uplink wireless communication.

  For example, a DCI including information indicating a downlink transmission period included in a scheduled PSCH may be defined as the DCI.

  For example, a DCI including information indicating an uplink transmission period included in a scheduled PSCH may be defined as the DCI.

  For example, as the DCI, a DCI including information indicating the timing of transmitting a HARQ-ACK for a scheduled PSCH (for example, the number of symbols from the last symbol included in the PSCH to the HARQ-ACK transmission) may be defined.

For example, as the DCI, a DCI including information indicating a downlink transmission period, a gap, and an uplink transmission period included in the scheduled PSCH may be defined.

  For example, DCI used for scheduling one downlink radio communication PSCH (transmission of one downlink transport block) in one cell may be defined as DCI.

  For example, DCI used for scheduling one uplink radio communication PSCH (transmission of one uplink transport block) in one cell may be defined as DCI.

Here, the DCI includes information on PSCH scheduling when the PSCH includes an uplink or a downlink. Here, the DCI for the downlink is assigned to a downlink grant or a downlink assignment (downlink grant).
assignment). Here, DCI for the uplink is also referred to as an uplink grant or an uplink assignment.

The PSCH is used for transmitting uplink data (UL-SCH: Uplink Shared CHannel) or downlink data (DL-SCH: Downlink Shared CHannel) from medium access (MAC). In the case of the downlink, it is also used for transmitting system information (SI: System Information), a random access response (RAR: Random Access Response), and the like. In the case of the uplink, it may be used to transmit HARQ-ACK and / or CSI along with the uplink data. Also, it may be used to transmit only CSI or only HARQ-ACK and CSI. That is, it may be used to transmit only UCI.

Here, the base station device 3 and the terminal device 1 exchange (transmit and receive) signals in an upper layer. For example, the base station apparatus 3 and the terminal apparatus 1 perform RRC signaling (RRC message: Radio Resource Control) in a radio resource control (RRC: Radio Resource Control) layer.
Control message, RRC information: also referred to as Radio Resource Control information). Further, the base station device 3 and the terminal device 1 may transmit and receive MAC control elements in a MAC (Medium Access Control) layer. Where R
RC signaling and / or MAC control elements are also referred to as higher layer signaling.

The PSCH may be used for transmitting RRC signaling and MAC control elements. Here, the RRC signaling transmitted from the base station device 3 may be a common signal to a plurality of terminal devices 1 in a cell. Further, the RRC signaling transmitted from the base station device 3 may be signaling dedicated to a certain terminal device 1 (also referred to as dedicated signaling). That is, terminal device specific (
UE-specific information may be transmitted to a certain terminal device 1 using dedicated signaling. The PSCH may be used for transmission of a UE capability (UE Capability) in the uplink.

  Although the PCCH and the PSCH use the same name for the downlink and the uplink, different channels may be defined for the downlink and the uplink.

For example, the downlink shared channel may be referred to as a physical downlink shared channel (PDSCH). Also, the uplink shared channel may be referred to as a physical uplink shared channel (PUSCH). Also, the downlink control channel may be referred to as a physical downlink control channel (PDCCH). The uplink control channel may be referred to as a physical uplink control channel (PUCCH: Physical Uplink Control CHannel).

In FIG. 1, the following downlink physical signals are used in downlink wireless communication. Here, the downlink physical signal is not used for transmitting information output from the upper layer, but is used by the physical layer.
・ Synchronization signal (SS)
・ Reference Signal (RS)

  The synchronization signal may include a primary synchronization signal (PSS: Primary Synchronization Signal) and a secondary synchronization signal (SSS). The cell ID may be detected using the PSS and the SSS.

  The synchronization signal is used by the terminal device 1 to synchronize the downlink frequency domain and the time domain. Here, the synchronization signal may be used by the terminal device 1 for precoding or beam selection in precoding or beamforming by the base station device 3.

  The reference signal is used by the terminal device 1 to perform channel compensation of the physical channel. Here, the reference signal may also be used by the terminal device 1 to calculate downlink CSI. In addition, the reference signal may be used for fine synchronization (fine synchronization) such that numerology such as a wireless parameter and a subcarrier interval or FFT window synchronization can be performed.

In the present embodiment, one or more of the following downlink reference signals are used.
・ DMRS (Demodulation Reference Signal)
・ CSI-RS (Channel State Information Reference Signal)
・ PTRS (Phase Tracking Reference Signal)
・ MRS (Mobility Reference Signal)

DMRS is used to demodulate a modulated signal. In the DMRS, two types of reference signals for demodulating the PBCH and a reference signal for demodulating the PSCH may be defined, or both may be referred to as DMRS. CSI-RS is used for measurement of channel state information (CSI: Channel State Information) and beam management. PTRS
Is used to track the phase due to movement of the terminal or the like. MRS may be used to measure reception quality from a plurality of base station devices for handover. Further, a reference signal for compensating for phase noise may be defined as the reference signal.

  A downlink physical channel and / or a downlink physical signal are collectively referred to as a downlink signal. An uplink physical channel and / or an uplink physical signal are collectively referred to as an uplink signal. The downlink physical channel and / or the uplink physical channel are collectively referred to as a physical channel. The downlink physical signal and / or the uplink physical signal are collectively referred to as a physical signal.

BCH, UL-SCH and DL-SCH are transport channels. A channel used in a medium access control (MAC) layer is called a transport channel. The unit of the transport channel used in the MAC layer is a transport block (TB) and / or a MAC PDU (Protocol Da).
ta Unit). In the MAC layer, HARQ (Hybrid Automatic Repeat reQuest) is controlled for each transport block. The transport block is a unit of data that the MAC layer delivers to the physical layer. In the physical layer, transport blocks are mapped to codewords, and encoding is performed for each codeword.

  Further, the reference signal may be used for radio resource measurement (RRM). Further, the reference signal may be used for beam management.

  Beam management includes analog and / or digital beams in a transmitting device (the base station device 3 in the case of downlink, and the terminal device 1 in the case of uplink) and a receiving device (the terminal device 1 in the case of downlink). (In the case of the uplink, the base station apparatus 3), the procedure of the base station apparatus 3 and / or the terminal apparatus 1 for matching the directivity of the analog and / or digital beams and obtaining the beam gain.

The beam management may include the following procedures.
・ Beam selection
・ Beam refinement
・ Beam recovery

  For example, the beam selection may be a procedure for selecting a beam in communication between the base station device 3 and the terminal device 1. Further, the beam improvement may be a procedure of selecting a beam having a higher gain or changing a beam between the base station apparatus 3 and the terminal apparatus 1 optimally by moving the terminal apparatus 1. The beam recovery may be a procedure for reselecting a beam when the quality of a communication link is degraded due to a blockage caused by a shield or the passage of a person in communication between the base station device 3 and the terminal device 1.

  For example, when selecting a transmission beam of the base station device 3 in the terminal device 1, CSI-RS may be used, or quasi co-location (QCL) assumption may be used.

  Two antenna ports are said to be QCL if the Long Term Property of the channel on which one symbol at one antenna port is carried can be inferred from the channel on which one symbol at the other antenna port is carried. . The long-range characteristics of the channel include one or more of delay spread, Doppler spread, Doppler shift, average gain, and average delay. For example, if the antenna port 1 and the antenna port 2 are QCL with respect to the average delay, it means that the reception timing of the antenna port 2 can be inferred from the reception timing of the antenna port 1.

This QCL can be extended to beam management. For this purpose, a QCL extended to the space may be newly defined. For example, as a long term property of a channel in a spatial QCL assumption, an arrival angle (AoA (Angle of Arrival), ZoA (Zenith angle of Arrival), etc.) and / or an angle spread (Angle) in a radio link or a channel. Spread, for example, ASA (Angle Spread of Arrival) and ZSA (Zenith angle Spread of Arrival), sending angle (AoD, ZoD, etc.) and its angular spread (Angle Spread, for example, ASD (Angle Spread of Departure), ZSS (Zenith angle) Spread of Departure) and Spatial Correlation.

  According to this method, the operations of the base station device 3 and the terminal device 1 equivalent to the beam management may be defined by the QCL assumption of space and the radio resources (time and / or frequency) as the beam management.

  Hereinafter, the subframe will be described. In this embodiment, it is called a subframe, but may be called a resource unit, a radio frame, a time section, a time interval, or the like.

  FIG. 2 is a diagram illustrating an example of a schematic configuration of a downlink slot according to the first embodiment of the present invention. Each of the radio frames is 10 ms long. Each radio frame is composed of 10 subframes and X slots. That is, the length of one subframe is 1 ms. Each slot has a time length defined by a subcarrier interval. For example, when the subcarrier interval of the OFDM symbol is 15 kHz and the NCP (Normal Cyclic Prefix), X = 7 or X = 14, which are 0.5 ms and 1 ms, respectively. When the subcarrier interval is 60 kHz, X = 7 or X = 14, which are 0.125 ms and 0.25 ms, respectively. FIG. 2 shows a case where X = 7 as an example. It should be noted that the same applies to the case where X = 14. Also, an uplink slot is defined similarly, and a downlink slot and an uplink slot may be defined separately.

The signal or physical channel transmitted in each of the slots may be represented by a resource grid. A resource grid is defined by multiple subcarriers and multiple OFDM symbols. The number of subcarriers forming one slot depends on the downlink and uplink bandwidth of the cell, respectively. Each of the elements in the resource grid is called a resource element. Resource elements may be identified using subcarrier numbers and OFDM symbol numbers.

A resource block is used to represent the mapping of resource elements of a certain physical downlink channel (such as PDSCH) or an uplink channel (such as PUSCH). As the resource block, a virtual resource block and a physical resource block are defined. A physical uplink channel is first mapped to a virtual resource block. Thereafter, the virtual resource blocks are mapped to physical resource blocks. In the case of NCP where the number of OFDM symbols included in the slot is X = 7, one physical resource block is defined by seven consecutive OFDM symbols in the time domain and 12 consecutive subcarriers in the frequency domain. You. That is, one physical resource block is composed of (7 × 12) resource elements. In the case of ECP (Extended CP), one physical resource block is defined by, for example, six consecutive OFDM symbols in the time domain and 12 consecutive subcarriers in the frequency domain. That is, one physical resource block is composed of (6 × 12) resource elements. At this time, one physical resource block corresponds to one slot in the time domain, and corresponds to 180 kHz (720 kHz in the case of 60 kHz) in the frequency domain when the subcarrier interval is 15 kHz. Physical resource blocks are numbered from 0 in the frequency domain.

  Next, subframes, slots, and minislots will be described. FIG. 3 is a diagram illustrating the relationship in the time domain between subframes, slots, and minislots. As shown in the figure, three types of time units are defined. The subframe is 1 ms regardless of the subcarrier interval, the number of OFDM symbols included in the slot is 7 or 14, and the slot length varies depending on the subcarrier interval. Here, when the subcarrier interval is 15 kHz, 14 OFDM symbols are included in one subframe. Therefore, assuming that the subcarrier interval is Δf (kHz), the slot length may be defined as 0.5 / (Δf / 15) ms when the number of OFDM symbols constituting one slot is seven. Here, Δf may be defined by a subcarrier interval (kHz). When the number of OFDM symbols forming one slot is 7, the slot length may be defined as 1 / (Δf / 15) ms. Here, Δf may be defined by a subcarrier interval (kHz). Further, when the number of OFDM symbols included in a slot is X, the slot length may be defined as X / 14 / (Δf / 15) ms.

  A mini-slot (which may be referred to as a sub-slot) is a time unit composed of fewer OFDM symbols than the number of OFDM symbols included in the slot. The figure shows an example where the minislot is composed of 2 OFDM symbols. An OFDM symbol in a mini-slot may coincide with the OFDM symbol timing making up the slot. The minimum unit of scheduling may be a slot or a minislot. Also,

FIG. 4 is a diagram illustrating an example of a slot or a subframe. Here, an example is shown in which the slot length is 0.5 ms at a subcarrier interval of 15 kHz. In the figure, D indicates downlink and U indicates uplink. As shown in the figure, within a certain time interval (for example, the minimum time interval that must be assigned to one UE in the system)
・ Downlink part (duration)
・ Gap ・ Uplink part (duration)
May be included.

4A may be referred to as a certain time section (for example, a minimum unit of a time resource that can be allocated to one UE, or a time unit. Also, a plurality of the minimum units of a time resource are bundled and called a time unit. FIG. 4B illustrates an example in which uplink scheduling is performed using, for example, PCCH in the first time resource, and the processing delay and downlink of PCCH are performed. , An uplink signal is transmitted via an uplink switching time and a gap for generating a transmission signal. FIG. 4 (c) is used for the transmission of the downlink PCCH and / or the downlink PSCH in the first time resource, through the processing delay and the switching time from the downlink to the uplink, and the gap for generating the transmission signal. Used for PSCH or PCCH transmission. Here, as an example, the uplink signal may be used for transmission of HARQ-ACK and / or CSI, that is, UCI. FIG. 4 (d) is used for transmission of the downlink PCCH and / or the downlink PSCH in the first time resource, through the processing delay and the switching time from the downlink to the uplink, and the gap for generating the transmission signal. Used for transmission of uplink PSCH and / or PCCH. Here, as an example, the uplink signal may be used for transmission of uplink data, that is, UL-SCH. FIG. 4 (e) shows an example in which all signals are used for uplink transmission (uplink PSCH or PCCH).

  The above-mentioned downlink part and uplink part may be configured by a plurality of OFDM symbols as in LTE.

  FIG. 5 is a diagram illustrating an example of beamforming. The plurality of antenna elements are connected to one transmission unit (TXRU: Transceiver unit) 10, the phase is controlled by a phase shifter 11 for each antenna element, and the transmission is performed from the antenna element 12 so that the transmission signal is transmitted in an arbitrary direction. Can direct the beam. Typically, TXRU may be defined as an antenna port, and in terminal device 1, only an antenna port may be defined. By controlling the phase shifter 11, directivity can be directed in an arbitrary direction, so that the base station apparatus 3 can communicate with the terminal apparatus 1 using a beam having a high gain.

  The terminal device 3 performs measurement (for example, RRM measurement) in the RRC layer in order to measure the quality of the radio link. The terminal device 3 performs CSI measurement in the physical layer. The terminal device 3 transmits a measurement report in the RRC layer on the RRC layer, and transmits a CSI report in the physical layer on the physical layer.

In the case of downlink, the CSI report reports the CSI measured by the terminal device 1 to the base station device 3. Therefore, the base station apparatus 3 sets one or a plurality of CSI reporting settings (CSI reporting settings (s)) for the terminal apparatus 1. The CSI report settings may include the following settings.
・ Time direction operation (transmission method)
・ Granularity in frequency domain ・ CSI type

The operation in the time direction may indicate a reference signal transmission method such as aperiodic (may be called Aperiodic, one-shot), semi-persistent, or periodic (Periodic).

  The granularity in the frequency domain may be, for example, the granularity when calculating PMI or CQI. For example, it may indicate that there is one wideband PMI or one wideband CQI for all resource blocks included in the bandwidth to be measured. For example, the number of resource blocks (the number of resource blocks in a partial band and / or a resource block group) for measuring a subband and / or a partial band PMI or a subband and / or a partial band CQI smaller than the band to be measured is shown. Good.

  The CSI type may indicate a CSI type such as which one or more of CQI / PMI / RI / CRI to report as CSI to be reported. Also, as the type of CSI, the CSI (type 1) including the PMI represented by the codebook is fed back, or analog feedback or a more granular codebook and / or a channel matrix and / or a channel covariance matrix are used. CSI type such as extended CSI (type 2) may be indicated.

RS (for example, CSI-RS) is used to assume a reference signal for measuring CSI. For that purpose, the base station apparatus 3 sets one or more RS settings (RS setting (s)) for the terminal apparatus 1. The RS settings may include the following settings.
・ Time direction operation (transmission method)
・ Resource ・ Reference signal type

Operation in the time direction is aperiodic, semi-persistent, periodic
Such a reference signal transmission method may be shown.

  Resources may refer to resource elements and / or OFDM symbols that are mapped in time and / or frequency. In the case of semi-persistent or periodic transmission, a period or a CSI-RS transmission interval (for example, a millisecond unit, a slot unit, an OFDM symbol unit, etc.) may be indicated. Note that the CSI-RS resource may be indicated by an index (or identity) to which these pieces of information are mapped.

  The period of the reference signal to be transmitted, whether sub-periodical, semi-persistent, or non-periodic, the subframe offset, and / or the slot offset may be included in any one of the above RS settings.

  The type of the reference signal may indicate, for example, whether or not a reference signal (for example, DMRS) other than the CSI-RS is used as a reference signal for CSI measurement. Of course, when only CSI-RS is used as a reference signal for CSI measurement, this setting need not be included.

Regarding the measurement of CSI, the terminal device 1 is used to measure CSI. For this purpose, the base station apparatus 3 sets one or a plurality of CSI measurement settings (CSI measurement settings (s)) for the terminal apparatus 1. The CSI measurement settings may include the following settings.
-Setting of one CSI report (one setting of one or more CSI report settings or an index indicating the same)
One RS setting (one setting of one or more RS settings or an index indicating the same)
・ Reference transmission mode (transmission mode)

  The setting of one CSI report may indicate a setting for reporting CSI measured by the CSI measurement setting or an index indicating the CSI report setting in a certain CSI measurement setting.

  One RS setting may indicate a setting of a reference signal used for the CSI measurement setting or an index indicating the setting in a certain CSI setting.

  In addition, the CSI report setting may be a setting in which an index of one CSI report setting is associated with an index of a CSI report setting and an RS setting included in the CSI report setting.

  The transmission scheme to be referred to may indicate a transmission scheme and / or a MIMO scheme assumed at the time of the CSI measurement in a certain CSI measurement setting. For example, the transmission method may be a wireless transmission method such as the OFDM method and / or the DFT-S-OFDM method. Further, the MIMO method may be a multi-antenna transmission method such as transmission diversity, closed-loop MIMO, open-loop MIMO, and quasi-open-loop MIMO. Alternatively, a transmission method that refers to only one of these may be used. Also, a combination of these may be used as a single reference transmission system.

  The terminal device 1 may be set with a CSI process for measuring CSI. Here, one CSI process may be associated with one RS configuration. Also, one CSI process may be associated with one CSI report setting.

  As described above, when a reference signal is activated in the MAC layer for a certain RS setting, the base station device 3 transmits a reference signal based on the RS setting, and the terminal device 1 activates the reference signal. It is recognized (assumed) that the reference signal based on the RS setting is transmitted. During the period in which the reference signal is activated, the terminal device 1 receives the reference signal of the time / frequency resource of the reference signal set by the RS setting.

  For example, regarding the CSI-RS resource included in the RS configuration, the period is 5 ms, the subframe offset (or may be a slot offset) is 0, and the fourth subcarrier in the resource block of the sixth OFDM symbol in each subframe It is assumed that the time / frequency resource in which the CSI-RS is arranged is set in the.

  In this case, a potential resource where the CSI-RS is arranged based on the radio frame number is subframe {0, 5, 10,...}. Here, when the CSI-RS is activated in the MAC layer in the subframe 3, it is recognized that the CSI-RS is present in the radio resource set by the RS setting until the CSI-RS is deactivated in the subframe 3 and thereafter. . The terminal device receives the CSI-RS allocated to the fourth subcarrier in the resource block of the fourth OFDM symbol in the subframes 5, 10, ... after the reference signal is activated.

  Here, when the reference signal set by the RS setting is activated, the terminal device 1 assumes that the reference signal set by the RS setting is activated. For example, when the reference signal is a CSI-RS and the CSI-RS is activated in subframe n, transmission of the CSI-RS based on the RS setting is performed until the reference signal is deactivated in the subframe n and thereafter. PDSCH is not mapped to the resource element assumed by the terminal device 1 used for the communication. On the other hand, the PDSCH is mapped to the assumed resource element used for the CSI-RS based on the RS setting potentially before the subframe n or after the deactivation by the terminal device 1.

  When performing cooperative communication with a plurality of base station apparatuses 3 or TRPs, reference signal settings are individually set for each radio link (a plurality of CSI processes or a plurality of CSI measurement settings or a plurality of Is set.) The resource elements to which the PDSCH is mapped may be signaled separately. For example, when the CSI-RS setting is included in the information on the resource element mapping of the PDSCH in DCI, a resource element that is assumed to transmit the CSI-RS when the RS configuration reference signal is activated is PDSCH is not mapped. Of course, the cooperative communication is an example, and is not limited to the cooperative communication.

  The activation may be performed at the time of RRC setting and / or when a MAC command is received, based on the RRC setting. For example, when the RRC RS configuration includes “periodic”, the corresponding CSI-RS may be activated when the RRC message is received.

  Further, when the reference signal set by the RS setting is triggered by DCI, the PDSCH is not mapped to the resource element that is assumed to transmit the reference signal set by the RS setting.

A method in which the terminal device 1 sets an RS for CSI reporting from the base station device 3 will be described. A corresponding RS configuration can be specified from an index of the RS configuration included in a certain CSI measurement configuration, and a channel measurement can be generated based on the RS configuration.

  If the transmission method in the RS setting set in the RS setting is “periodic”, a channel measurement is generated based on the RS setting when the RS setting is set.

  If the transmission method in the RS setting is 'semi-persistent', the terminal device 1 sets the RS setting and the terminal device 1 uses the RS setting until the reference signal is activated and deactivated. The set reference signal may be received based on the RS setting.

  Here, activating the reference signal may mean that the terminal device 1 recognizes that the reference signal is arranged in the resource element based on the RS setting. In order to activate, the base station apparatus 3 activates a reference signal in the MAC layer for the terminal apparatus 1, and information for activating the reference signal may be included in a MAC control element or a MAC protocol data unit. The terminal device 3 receives the reference signal based on the RS setting after receiving by the MAC layer and after T (ms). In the case of deactivation, an instruction may be given at the MAC layer. Further, as another example of deactivation, instead of instructing deactivation signaling at the MAC layer, a reference signal of a resource element based on the RS setting is received for a predetermined or set time. You may. Note that the above T may be included in the RS setting or may be defined in advance. If the time until the reference signal is deactivated in the MAC layer is set in advance, it may be included in the RS setting.

  At this time, the MAC layer information for activating and / or deactivating the reference signal may include one or more indices of RS settings associated with the reference signal to be activated. For example, when one or a plurality of RS settings are triggered at the MAC layer, which RS setting activates a reference signal may be indicated by a bitmap or may be collectively encoded. The bit of each field corresponds to the index of each RS setting, and the reference signal corresponding to the field where 1 is set is activated. Further, the reference signal corresponding to the field in which 0 is set is inactivated.

  In addition, one or more CSI measurement indexes may be included as MAC layer information for activating and / or deactivating the reference signal. For example, when one or more CSI measurement settings are triggered at the MAC layer, which CSI measurement setting activates the CSI measurement may be indicated by a bitmap or may be collectively encoded. The bits of each field correspond to the index of each CSI measurement, and the CSI measurement corresponding to the field where 1 is set is activated. Further, the CSI measurement corresponding to the field in which 0 is set is deactivated.

  Further, if the transmission method in the RS setting is “semi-persistent”, the terminal device 1 may be triggered to receive the reference signal by DCI. At this time, the reference signal set by the RS setting may be received based on the RS setting after the subframe indicated by the DCI. Further, terminal device 1 may be instructed by DCI to end the reception of the reference signal. The DCI may also include one or more CSI measurement indices set by the CSI measurement settings. Thereby, it is possible to efficiently perform the reception of the reference signal and the CSI measurement.

  If the transmission method in the RS setting is “non-periodic”, the terminal device 1 may receive a trigger for receiving a reference signal by DCI. At this time, the reference signal set in the RS configuration may be received once or multiple times in the subframe indicated by the DCI or the first reference signal resource after the indicated subframe based on the RS configuration. Also, the DCI may include an index of one or more CSI measurements that have been set. Further, which CSI measurement setting is to be triggered as information included in DCI may be indicated by a bitmap or may be collectively encoded.

  A method in which the base station device 3 requests a CSI report from the terminal device 1 will be described. A CSI report configuration corresponding to one or an index of the CSI report configuration included in the CSI report configuration is identified, and the CSI is reported based on the CSI report configuration.

  If the reporting method in the CSI report setting is “periodic”, the terminal device 1 may periodically report the CSI based on the CSI setting when the CSI report setting is set.

  If the reporting method in the CSI report setting is 'semi-persistent', the terminal device 1 sets the CSI report setting and uses the CSI report setting from when the CSI report is activated until it is deactivated. May report the CSI.

Here, activating the CSI report may mean that the terminal device 1 recognizes that the CSI may be reported based on the CSI report setting. In addition, in order to activate, the base station apparatus 3 activates the terminal apparatus 1 at the MAC layer, and the information to be activated may be included in a MAC control element or a MAC protocol data unit. The terminal device 3 receives the information in the MAC layer and reports CSI based on the CSI report setting after T (ms). In addition, when deactivating the CSI report, an instruction may be given at the MAC layer. Also, regarding the deactivation, after activating the CSI report, the CSI report may be activated for a predetermined or set time.
The CSI may be reported based on the I report settings. Note that the above T may be included in the CSI report settings or may be defined in advance. If the time until deactivation is set in advance in the MAC layer, it may be included in the CSI report setting.

  At this time, the MAC layer information for activating and / or deactivating the CSI report may include one or more indices of a CSI report setting associated with the CSI report to be activated.

  Also, one or more CSI measurement indexes may be included as MAC layer information for activating and / or deactivating CSI reports. For example, when one or more CSI measurement settings are triggered at the MAC layer, which CSI measurement setting is activated may be indicated by a bitmap or may be collectively encoded. The bit of each field corresponds to the index of each CSI report, and the CSI report corresponding to the field where 1 is set is activated. Further, the CSI report corresponding to the field in which 0 is set is deactivated.

  If the transmission method in the CSI report setting is “semi-persistent”, the terminal device 1 may be requested (triggered) to report the CSI by DCI. At this time, CSI may be reported based on the CSI report setting after the subframe indicated by DCI. Further, the terminal device 1 may be instructed to end the CSI report by DCI. Also, the DCI may include one or more CSI measurement indices set by the CSI measurement settings.

  Further, if the transmission method in the CSI report setting is “non-periodic”, the terminal device 1 may report a CSI request in DCI. At this time, the CSI may be reported once or multiple times based on the CSI report setting in the PUSCH or PUCCH resource for the first CSI report after the subframe indicated by the DCI or the subframe indicated by the DCI. Also, the DCI may include an index of one or more CSI measurements that have been set. Further, which CSI measurement setting is to be triggered as information included in DCI may be indicated by a bitmap or may be collectively encoded. Thereby, CSI measurement and CSI reporting can be performed efficiently.

Next, an example of the relationship with the CSI process will be described. One or more CSI processes can be set for the terminal device 3. Typically, when performing cooperative communication (CoMP: Coordinated Multi-Point) with a plurality of base station apparatuses 3, a CSI process as an identity for CSI measurement and CSI reporting on a radio link between the respective base station apparatuses 3 An ID may be used. However, the present invention is not limited to cooperative communication with a plurality of base station devices 3.

  Certain CSI processes may be associated with one CSI measurement configuration. Also, a plurality of CSI measurement settings may be associated with one CSI process. Further, the CSI-RS resource setting and the CSI process may be associated with each other. Also, IM settings and CSI processes may be associated. Alternatively, “CSI measurement setting” may be reworded as “CSI process”.

The following is an example of the above. As the CSI report settings, three CSI report settings (CSI report settings C1, C2, C3) are set, and two RS settings (RS settings R1, R2) are set. Here, it is assumed that the CSI report settings C1, C2, C3 and the RS settings R1, R2 are set as follows.
・ CSI report setting C1:
• Operation in the time direction: semi-persistent • Granularity in the frequency domain: wideband • CSI type: CQI
・ CSI report setting C2:
• Operation in the time direction: aperiodic • Granularity in the frequency domain: wideband • CSI type: RI, CQI
・ CSI report setting C3:
-Time direction operation: aperiodic-Frequency domain granularity: sub-band (4 resource blocks)
CSI type: RI, CQI, PMI, CRI

・ RS setting R1:
-Operation in the time direction: semi-persistent-Resource: CSI-RS setting # 1
-Reference signal type: CSI-RS
・ RS setting R2:
-Operation in the time direction: aperiodic-Resource: CSI-RS setting # 2
-Reference signal type: CSI-RS

  Here, three CSI measurement settings (M1, M2, M3) are set, and each of the CSI measurement settings includes the following CSI report settings, RS settings, and a reference transmission scheme.

・ CSI measurement setting M1:
・ CSI report setting C1
・ RS setting R1
-Transmission method to be referred: Transmission diversity-CSI measurement setting M2:
・ CSI report setting C2
・ RS setting R1
Reference transmission system: Open loop MIMO
・ CSI measurement setting M3:
・ CSI report setting C3
・ RS setting R2
Reference transmission method: Closed loop MIMO

  Here, when reporting the CSI corresponding to the CSI measurement settings M1 and M2, the base station apparatus 3 uses the MAC CE or MAC PDU of the MAC layer or the DCI in the physical layer to transmit the CSI corresponding to the CSI measurement settings M1 and M2. , And the terminal device 1 performs CSI measurement corresponding to the CSI measurement settings M1 and M2, and reports the CSI.

  For example, the RS setting R1 of the CSI measurement setting M1 activates semi-persistent transmission at the MAC layer. At this time, the base station apparatus 3 includes an index associated with the setting of R1 and / or M1 in the information instructing activation. The terminal device 1 recognizes CSI-RS resources based on the time and / or frequency and / or code (orthogonal code, M sequence, cyclic shift, etc.) of CSI-RS setting # 1 based on the index, and Measure CSI until activated.

  Further, the base station device 3 requests the terminal device 1 to report the CSI report setting C1 in order to perform the CSI measurement and the CSI report corresponding to the CSI measurement setting M1. Since the operation in the time domain of the CSI report setting C1 is semi-persistent, the CSI report is activated by the MAC layer of the base station device 3. The terminal device 1 reports CSI using the resource for CSI reporting until it is deactivated.

  The terminal device 1 may report the CSI and the index associated with the CSI measurement configuration M1 and / or the CSI report configuration C1 together with the CSI when reporting the CSI. This index may be defined as one of the CSI.

  Similarly, for the CSI measurement setting M2, the base station apparatus 3 may activate the reference signal of the RS setting R1 to perform the CSI measurement. For the CSI report, a CSI report setting C2 is relevant. At this time, since the operation in the time direction of the CSI report setting C2 is aperiodic, the CSI report is requested (requested) by DCI, and the terminal device 1 receives the CSI report request from the base station device 3 by DCI. , CSI reporting on CSI reporting resources. At this time, the resource for CSI reporting may be a PUSCH resource scheduled by the base station device 3.

  The terminal device 1 may report the CSI and the index associated with the CSI measurement setting M2 or the CSI report setting C2 together with the CSI at the time of the CSI report. This index may be defined as one of the CSI.

  When a plurality of CSI measurement settings are set in the terminal device 1, one or a plurality of reference signals based on RS settings to be activated and / or deactivated in the MAC layer are indicated by information indicating one activation. May be activated and / or deactivated.

  When a plurality of CSI measurement settings are set in the terminal device 1, regarding the reference CSI report based on the CSI report setting to be activated and / or deactivated in the MAC layer, one piece of information indicating one activation is used. Or multiple CSI reports may be activated and / or deactivated.

  When a plurality of CSI measurement settings are set in the terminal device 1, with respect to transmission of a reference signal triggered in the physical layer, one DCI transmits a reference signal associated with one or more RS settings. Is also good.

  When a plurality of CSI measurement settings are set in the terminal device 1, one DCI may request one or a plurality of CSI report settings for a CSI report triggered in the physical layer.

An interference measurement resource (IM: Interference Measurement) indicates a resource for measuring interference in a downlink. Therefore, the base station apparatus 3 sets one or more IM settings (IM setting (s)) for the terminal apparatus 1. The interference resource settings may include the following settings.
・ Time direction operation (transmission method)
.Reference signal type

Operation in the time direction is aperiodic, semi-persistent, periodic
Such a reference signal transmission method may be shown.

The resource may indicate a resource element and / or an OFDM symbol that is used as an interference measurement resource in time and / or frequency. Further, in the case of semi-persistent or periodic transmission, a period or a transmission interval of CSI-IM (for example, a millisecond unit, a slot unit, an OFDM symbol unit, etc.) may be indicated. Note that the CSI-IM resource may be indicated by an index (or identity) to which such information is mapped.

  The period of the reference signal to be transmitted, whether sub-periodical, semi-persistent, or non-periodic, the subframe offset, and / or the slot offset may be included in any of the IM settings.

  The type of the reference signal may indicate, for example, whether or not an interference measurement resource (for example, an NZP CI-RS resource) other than the CSI-IM is used as the CSI measurement reference signal. Of course, if only CSI-IM is a resource for interference measurement, this setting need not be included.

The IM configuration may be included in the RS configuration or may be defined separately from the RS configuration. The interference resource configuration may be included in the CSI measurement configuration as described below.
-Setting of one CSI report (one setting of one or more CSI report settings or an index indicating the same)
One RS setting (one setting of one or more RS settings or an index indicating the same)
One IM setting (one of one or more IM settings or an index indicating the setting)
・ Reference transmission method

  In this case, activation of reception of a reference signal based on the RS configuration and / or activation of interference resources based on the IM configuration may be performed in different subframes or slots, or one piece of information may be used in the same subframe or slot. May be performed.

  In addition, the CSI report setting and the RS setting may be set by and / or RRC (upper layer), or may be a setting predefined in specifications.

  In addition to the examples described above, further embodiments are described below.

  It is assumed that two CSI report settings C1 and C2 and one RS setting R1 are set and are associated with the CSI measurement settings M1 and M2 by a combination of (C1, R1) and (C2, R1), respectively.

  In the subframe n, when the reference signal of the RS setting R1 is activated, the terminal device 1 recognizes that the reference signal is transmitted based on the RS setting R1. At this time, the CSI report by the CSI report setting has not been activated or triggered yet. If CSI report setting C1 is triggered by DCI in subframe n + X (X is a positive integer equal to or greater than 0), CSI measurement setting M1 is assumed as CSI measurement setting M1 from a combination of RS setting R1 and CSI report setting C1. CSI measurement and CSI report are performed based on the CSI report setting C1. In this case, activation of CSI measurement may not be defined.

  Thus, the terminal device 1 performs the channel measurement and the CSI report based on the channel measurement setting associated when the reference signal associated with the RS setting is activated and triggered and the CSI setting is activated or triggered. You may go.

  As another example, when the CSI report associated with the CSI report setting M1 is activated in the subframe n, the terminal device 1 recognizes that a CSI report based on the CSI report setting C1 can be made. At this time, the RS by the RS setting has not been activated or triggered yet. When the reference signal associated with the RS setting R1 is activated in the subframe n + X (X is a positive integer equal to or greater than 0), the CSI measurement setting M1 is assumed based on a combination of the RS setting R1 and the CSI report setting C1. The CSI measurement and the CSI report are performed based on the CSI measurement setting M1 and the CSI report setting C1. In this case, activation of CSI measurement may not be defined.

  Thus, the terminal device 1 performs the channel measurement and the CSI report based on the channel measurement setting associated when the reference signal associated with the RS setting is activated and triggered and the CSI setting is activated or triggered. You may go.

  As another example, when the CSI report associated with the CSI report setting M1 is activated in the subframe n, the terminal device 1 recognizes that the CSI measurement based on the CSI measurement setting M1 can be performed. At this time, a CSI report based on the CSI report setting C1 associated with the CSI measurement setting M1 and a reference signal based on the RS setting R1 are activated. The terminal device 1 performs CSI measurement and CSI report based on these settings. In this case, the activation of the reference signal based on the RS setting R1 and the activation of the CSI report based on the CSI report setting C1 may not be defined.

  In this example, when the operation in the time domain of the RS setting R1 is “semi-persistent” and the CSI report setting is “non-periodic”, when the CSI measurement based on the CSI measurement setting M1 is activated, , A reference signal based on the RS setting R1 is activated, and the terminal device 1 receives a trigger requesting a CSI report by DCI while the reference signal is activated.

One aspect of the present embodiment may operate in carrier aggregation or dual connectivity with a radio access technology (RAT) such as LTE or LTE-A / LTE-A Pro. At this time, some or all cells or cell groups, carriers or carrier groups (for example, primary cell (PCell: Primary Cell), secondary cell (SCell: Secondary Cell), primary secondary cell (PSCell), MCG (Master Cell Group) ), SCG (Secondary Cell Group)
Etc.). Further, it may be used as a stand-alone that operates alone.

  Hereinafter, the configuration of the device according to the present embodiment will be described. Here, an example is shown in which CP-OFDM is applied as a downlink radio transmission scheme and CP DFTS-OFDM (SC-FDM) is applied as an uplink radio transmission scheme.

  FIG. 6 is a schematic block diagram illustrating a configuration of the terminal device 1 of the present embodiment. As illustrated, the terminal device 1 includes an upper layer processing unit 101, a control unit 103, a receiving unit 105, a transmitting unit 107, and a transmitting / receiving antenna 109. Further, the upper layer processing unit 101 is configured to include a radio resource control unit 1011, a scheduling information interpretation unit 1013, and a channel state information (CSI) report control unit 1015. The receiving unit 105 includes a decoding unit 1051, a demodulation unit 1053, a demultiplexing unit 1055, a wireless reception unit 1057, and a measurement unit 1059. Further, transmitting section 107 is configured to include coding section 1071, modulating section 1073, multiplexing section 1075, radio transmitting section 1077, and uplink reference signal generating section 1079.

The upper layer processing unit 101 outputs uplink data (transport block) generated by a user operation or the like to the transmission unit 107. The upper layer processing unit 101 includes a medium access control (MAC) layer, a packet data convergence protocol (PDCP) layer, a radio link control (Radio Link Control: RLC) layer, and a radio resource control. (Radio Resource Control: RRC) layer processing.

  The radio resource control unit 1011 included in the upper layer processing unit 101 manages various setting information of its own device. Further, the radio resource control unit 1011 generates information to be allocated to each uplink channel and outputs the information to the transmission unit 107.

  The scheduling information interpreting unit 1013 included in the upper layer processing unit 101 interprets the DCI (scheduling information) received via the receiving unit 105 and, based on the result of interpreting the DCI, determines whether the receiving unit 105 and the transmitting unit 107 It generates control information for performing control and outputs it to the control unit 103.

  CSI report control section 1015 instructs measurement section 1059 to derive channel state information (RI / PMI / CQI / CRI) related to the CSI reference resource. CSI report control section 1015 instructs transmission section 107 to transmit RI / PMI / CQI / CRI. CSI report control section 1015 sets a setting used by measurement section 1059 when calculating CQI.

  Control section 103 generates a control signal for controlling receiving section 105 and transmitting section 107 based on the control information from upper layer processing section 101. The control unit 103 outputs the generated control signal to the receiving unit 105 and the transmitting unit 107 to control the receiving unit 105 and the transmitting unit 107.

  Receiving section 105 separates, demodulates, and decodes a received signal received from base station apparatus 3 via transmission / reception antenna 109 according to the control signal input from control section 103, and outputs the decoded information to upper layer processing section 101. Output.

The radio reception unit 1057 converts a downlink signal received via the transmission / reception antenna 109 into an intermediate frequency (down conversion: down covert), removes unnecessary frequency components,
The amplification level is controlled so that the signal level is appropriately maintained, quadrature demodulation is performed based on the in-phase and quadrature components of the received signal, and the quadrature demodulated analog signal is converted into a digital signal. The radio reception unit 1057 removes a portion corresponding to a guard interval (Guard GI) from the converted digital signal, performs fast Fourier transform (Fast Fourier Transform: FFT) on the signal from which the guard interval has been removed, Extract the signal of the area.

  The demultiplexing unit 1055 separates the extracted signal into downlink PCCHs, PSCHs, and downlink reference signals. Further, the demultiplexing section 1055 compensates for the PCCH and PSCH propagation paths based on the propagation path estimation values input from the measurement section 1059. Further, demultiplexing section 1055 outputs the separated downlink reference signal to measurement section 1059.

  Demodulation section 1053 demodulates the downlink PCCH and outputs the result to decoding section 1051. Decoding section 1051 attempts to decode the PCCH, and if decoding is successful, outputs the decoded downlink control information and the RNTI corresponding to the downlink control information to upper layer processing section 101.

The demodulation unit 1053 applies QPSK (Quadrature Phase Shift Keying) to the PSCH.
, 16QAM (Quadrature Amplitude Modulation), 64QAM, 256QAM, etc., and demodulates in the modulation scheme notified by the downlink grant, and outputs the result to the decoding unit 1051. Decoding section 1051 performs decoding based on the information on the transmission or the original coding rate notified by the downlink control information, and outputs the decoded downlink data (transport block) to upper layer processing section 101.

  The measurement unit 1059 performs downlink path loss measurement, channel measurement, and / or interference measurement from the downlink reference signal input from the demultiplexing unit 1055. The measurement unit 1059 outputs the CSI calculated based on the measurement result and the measurement result to the upper layer processing unit 101. Also, measuring section 1059 calculates an estimated value of the downlink propagation path from the downlink reference signal and outputs the estimated value to demultiplexing section 1055.

  Transmitting section 107 generates an uplink reference signal according to the control signal input from control section 103, encodes and modulates uplink data (transport block) input from upper layer processing section 101, and generates PUCCH, The PUSCH and the generated uplink reference signal are multiplexed and transmitted to the base station device 3 via the transmission / reception antenna 109.

  Encoding section 1071 encodes uplink control information and uplink data input from upper layer processing section 101. Modulating section 1073 modulates the coded bits input from coding section 1071 using a modulation method such as BPSK, QPSK, 16QAM, 64QAM, or 256QAM.

  The uplink reference signal generation unit 1079 uses a physical cell identity (referred to as PCI, Cell ID, or the like) for identifying the base station device 3, a bandwidth for allocating the uplink reference signal, and an uplink grant. Based on the notified cyclic shift, the value of the parameter for generating the DMRS sequence, and the like, a sequence determined by a predetermined rule (expression) is generated.

  The multiplexing unit 1075 determines the number of PUSCH layers to be spatially multiplexed based on information used for PUSCH scheduling, and uses MIMO SM (Multiple Input Multiple Output Spatial Multiplexing) for the same PUSCH. A plurality of transmitted uplink data are mapped to a plurality of layers, and precoding is performed on the layers.

The multiplexing unit 1075 performs a discrete Fourier transform (Discrete Fourier Transform: DFT) on the PSCH modulation symbol according to the control signal input from the control unit 103. Multiplexing unit 1
No. 075 multiplexes the PCCH and PSCH signals and the generated uplink reference signal for each transmission antenna port. That is, multiplexing section 1075 arranges the PCCH and PSCH signals and the generated uplink reference signal in the resource element for each transmission antenna port.

The radio transmission unit 1077 converts the multiplexed signal into an inverse fast Fourier transform (Inverse Fast Fourier transform).
Transform: IFFT), performs SC-FDM modulation, adds a guard interval to the SC-FDM modulated SC-FDM symbol, generates a baseband digital signal, and converts the baseband digital signal into an analog signal. , Generate in-phase and quadrature components of the intermediate frequency from the analog signal, remove the extra frequency components for the intermediate frequency band, and convert the intermediate frequency signal to a higher frequency signal (up convert). , An extra frequency component is removed, the power is amplified, and the amplified signal is output to the transmitting / receiving antenna 109 and transmitted.

FIG. 7 is a schematic block diagram illustrating a configuration of the base station device 3 of the present embodiment. As illustrated, the base station device 3 is configured to include an upper layer processing unit 301, a control unit 303, a reception unit 305, a transmission unit 307, and a transmission / reception antenna 309. Also, the upper layer processing unit 301
It is configured to include a radio resource control unit 3011, a scheduling unit 3013, and a CSI report control unit 3015. The receiving unit 305 includes a decoding unit 3051, a demodulating unit 3053, a demultiplexing unit 3055, a wireless receiving unit 3057, and a measuring unit 3059. Also, the transmitting section 307 includes an encoding section 3071, a modulating section 3073, a multiplexing section 3075, a radio transmitting section 3077, and a downlink reference signal generating section 3079.

  The upper layer processing unit 301 includes a medium access control (MAC) layer, a packet data convergence protocol (PDCP) layer, a radio link control (Radio Link Control: RLC) layer, and a radio resource control (Radio). Resource Control (RRC) layer processing. Further, the upper layer processing unit 301 generates control information for controlling the receiving unit 305 and the transmitting unit 307, and outputs the control information to the control unit 303.

The radio resource control unit 3011 included in the upper layer processing unit 301 generates downlink data (transport block), system information, an RRC message, a MAC CE (Control Element), etc., arranged on the downlink PSCH, or The information is acquired from the node and output to the transmission unit 307. The wireless resource control unit 3011 manages various setting information of each terminal device 1.

  The scheduling unit 3013 included in the upper layer processing unit 301 determines a frequency and a subframe to which a physical channel (PSCH) is to be allocated, a physical channel (a physical channel (PSCH)) based on the received CSI, the estimated value of the propagation path input from the measuring unit 3059, the channel quality, and the like. PSCH) transmission coding rate, modulation scheme, transmission power, and the like are determined. The scheduling unit 3013 generates control information for controlling the receiving unit 305 and the transmitting unit 307 based on the scheduling result, and outputs the control information to the control unit 303. The scheduling unit 3013 generates information (for example, DCI (format)) used for physical channel (PSCH) scheduling based on the scheduling result.

  The CSI report control unit 3015 included in the upper layer processing unit 301 controls the CSI report of the terminal device 1. The CSI report control unit 3015 transmits information indicating various settings assumed by the terminal device 1 to derive RI / PMI / CQI in the CSI reference resource to the terminal device 1 via the transmission unit 307.

  The control unit 303 generates a control signal for controlling the reception unit 305 and the transmission unit 307 based on the control information from the upper layer processing unit 301. The control unit 303 outputs the generated control signal to the receiving unit 305 and the transmitting unit 307, and controls the receiving unit 305 and the transmitting unit 307.

Receiving section 305 separates, demodulates, and decodes a received signal received from terminal apparatus 1 via transmitting / receiving antenna 309 according to the control signal input from control section 303, and outputs the decoded information to upper layer processing section 301. . The radio reception unit 3057 converts an uplink signal received via the transmission / reception antenna 309 into an intermediate frequency (down conversion: down covert),
Unnecessary frequency components are removed, the amplification level is controlled so that the signal level is maintained appropriately, and quadrature demodulation is performed based on the in-phase and quadrature components of the received signal. Convert to a signal.

The wireless reception unit 3057 removes a part corresponding to a guard interval (GI) from the converted digital signal. The wireless receiving unit 3057 performs fast Fourier transform (FFT) on the signal from which the guard interval has been removed, extracts a signal in the frequency domain, and outputs the signal to the demultiplexing unit 3055.

  Demultiplexing section 1055 separates the signal input from radio receiving section 3057 into signals such as PCCH, PSCH, and uplink reference signals. This separation is performed based on the radio resource allocation information included in the uplink grant, which is determined in advance by the base station apparatus 3 in the radio resource control unit 3011 and notified to each terminal apparatus 1. Further, the demultiplexing section 3055 compensates for the PCCH and PSCH propagation paths based on the propagation path estimation values input from the measurement section 3059. Further, demultiplexing section 3055 outputs the separated uplink reference signal to measurement section 3059.

The demodulation unit 3053 performs an Inverse Discrete Fourier Transform (IDFT) on the PSCH, obtains modulation symbols, and applies BPSK (Binary Phase Shift Keying), QPSK, 16QAM, 64QAM
The terminal device 1 demodulates the received signal using a predetermined modulation method such as 256QAM or the like, or a modulation method notified by the own device to each terminal device 1 in advance by an uplink grant. Demodulation section 3053 uses MIMO SM based on the number of spatially multiplexed sequences notified in advance in the uplink grant to each terminal device 1 and information indicating precoding to be performed on the sequences, and uses the same MIMO SM. The modulation symbols of a plurality of uplink data transmitted on the PSCH are separated.

  The decoding unit 3051 transmits the demodulated coded bits of the PCCH and the PSCH to the transmission or transmission of the predetermined information in a predetermined coding scheme or in advance by the own apparatus to the terminal apparatus 1 by an uplink grant. Decoding is performed at the coding rate, and the decoded uplink data and uplink control information are output to the upper layer processing unit 101. When the PSCH is retransmitted, the decoding unit 3051 performs decoding using the coded bits held in the HARQ buffer input from the upper layer processing unit 301 and the demodulated coded bits. Measuring section 309 measures an estimated value of the propagation path, channel quality, and the like from the uplink reference signal input from demultiplexing section 3055, and outputs it to demultiplexing section 3055 and upper layer processing section 301.

  The transmitting section 307 generates a downlink reference signal according to the control signal input from the control section 303, encodes and modulates downlink control information and downlink data input from the upper layer processing section 301, and performs PCCH , PSCH, and a downlink reference signal are multiplexed or transmitted using separate radio resources to the terminal device 1 via the transmission / reception antenna 309.

  The encoding unit 3071 encodes downlink control information and downlink data input from the upper layer processing unit 301. The modulation unit 3073 modulates the coded bits input from the coding unit 3071 using a modulation method such as BPSK, QPSK, 16QAM, 64QAM, or 256QAM.

  The downlink reference signal generation unit 3079 generates a sequence known by the terminal device 1 as a downlink reference signal, which is obtained by a predetermined rule based on a physical cell identifier (PCI) for identifying the base station device 3 and the like. I do.

The multiplexing unit 3075 maps one or more downlink data transmitted on one PSCH to one or more layers according to the number of spatially multiplexed PSCH layers, and Precoding is performed on the layer of.
The multiplexing unit 375 multiplexes a downlink physical channel signal and a downlink reference signal for each transmission antenna port. The multiplexing unit 375 arranges a downlink physical channel signal and a downlink reference signal in a resource element for each transmission antenna port.

The wireless transmission unit 3077 performs an inverse fast Fourier transform (IFFT) on the multiplexed modulation symbols and the like, performs OFDM modulation, adds a guard interval to the OFDM modulated OFDM symbol, and transmits a baseband signal. , Convert the baseband digital signal into an analog signal, generate an in-phase component and a quadrature component of the intermediate frequency from the analog signal, remove extra frequency components for the intermediate frequency band, and remove the intermediate frequency signal. Is converted into a high-frequency signal (up convert), an extra frequency component is removed, power is amplified, and the signal is output to the transmission / reception antenna 309 and transmitted.

  (1) More specifically, the terminal device 1 according to the first aspect of the present invention is a terminal device that communicates with a base station device, and transmits first information including one or a plurality of first settings. A receiving unit that receives, receives second information including one or more second settings, receives third information including one or more third settings, and receives fourth information A channel state measurement unit for measuring channel state information; and a transmission unit for reporting the channel state information, wherein the first setting is a setting for one or more reports of the channel state information. Wherein each of the settings for the one or more reports includes one first index, and wherein the second setting includes one or more reference signals for measuring the channel state information. Settings for the one or more references Each of the settings for the signal includes one second index, and the third setting includes one index of the first index, one index of the second index, and one second index. And the third information includes information indicating one or more of the third indexes.

  (2) In the first aspect, one or more third settings are specified based on one or more third indexes included in the fourth information, and the specified Identifying one or more first settings and one or more second settings based on one or more of the third settings; and identifying the identified one or more first settings And transmitting one or more channel state information reports based on the one or more second settings.

  (3) In the first aspect, the one or more channel state information reports are transmitted by a procedure in a physical layer.

  (4) In the first aspect, the transmitting unit transmits the channel state information including one of the third indexes.

  (5) In the first aspect, the receiving unit further receives fifth information including one or more fourth settings, receives sixth information, and the fourth setting is , Settings for one or more interference measurement resources for measuring the channel state information, each of the settings for the one or more interference measurement resources includes one fourth index, The setting further includes one of the fourth indexes.

  (6) The base station device 3 according to the second aspect of the present invention is a base station device that communicates with a terminal device, transmits first information including one or a plurality of first settings, and Or a transmitting unit that transmits second information including a plurality of second settings, transmits third information including one or more third settings, and transmits fourth information, and channel state information. And a channel receiving unit that receives the channel state information, wherein the first setting is a setting for one or more reports of the channel state information, and each of the settings for the one or more reports is , Including one first index, wherein the second setting is a setting related to one or more reference signals for measuring the channel state information, and each of the setting related to the one or more reference signals. Contains one second index , The third setting includes one index of the first index, one index of the second index, and one third index, and the fourth information includes: The information includes one or more of the third indexes.

  (7) In the second aspect, one or more channels based on one or more third settings based on one or more third indexes included in the fourth information. Receive a status information report.

  (8) In the second aspect, the one or more channel state information reports are received by a procedure at a physical layer.

  (9) In the second aspect, the channel state information includes one of the third indexes.

  (10) In the second aspect, the transmitting unit further transmits fifth information including one or more fourth settings and sixth information, and the fourth setting includes the fourth setting, A setting for one or more interference measurement resources for measuring channel state information, wherein each of the settings for the one or more interference measurement resources includes one third index, and the third setting Further includes one of the fourth indexes.

  (11) A communication method according to a third aspect of the present invention is a communication method for a terminal device communicating with a base station device, wherein the communication device receives first information including one or a plurality of first settings, and Receiving second information including one or more second settings, receiving third information including one or more third settings, receiving fourth information, and measuring channel state information And reporting the channel state information, wherein the first setting is a setting for one or more reports of the channel state information, and each of the settings for the one or more reports is: Including one first index, the second setting is a setting related to one or more reference signals for measuring the channel state information, and each of the setting related to the one or more reference signals is , One second index In addition, the third setting includes one index of the first index, one index of the second index, and one third index, and the fourth information is , And information indicating one or more of the third indexes.

  (12) A communication method according to a fourth aspect of the present invention is a communication method for a base station apparatus that communicates with a terminal apparatus, wherein the first information including one or a plurality of first settings is transmitted, and Transmitting second information including one or more second settings, transmitting third information including one or more third settings, transmitting fourth information, and receiving channel state information And, the first setting is a setting for one or more reports of the channel state information, and each of the settings for the one or more reports includes one first index. , The second setting is a setting related to one or more reference signals for measuring the channel state information, and each of the setting related to the one or more reference signals is one second index. The third setting includes the third setting , One of the second indexes, and one of the third indexes, wherein the fourth information includes one or more of the third indexes. Include information to indicate.

(13) The integrated circuit according to the fifth aspect of the present invention is an integrated circuit mounted on a terminal device that communicates with a base station device, and receives first information including one or more first settings. Receiving means for receiving second information including one or more second settings, receiving third information including one or more third settings, and receiving fourth information; , Channel state measuring means for measuring channel state information, and transmitting means for reporting the channel state information, wherein the first setting is a setting for one or more reports of the channel state information. And each of the settings for the one or more reports includes one first index, and the second setting relates to one or more reference signals for measuring the channel state information. Settings, the one or Each of the settings for the number of reference signals includes one second index, and the third setting includes one index of the first index, one index of the second index, A third index, and the fourth information includes information indicating one or more of the third indexes.

  (14) The integrated circuit according to the sixth aspect of the present invention is an integrated circuit mounted on a base station device that communicates with a terminal device, and transmits first information including one or a plurality of first settings. Transmitting means for transmitting second information including one or more second settings, transmitting third information including one or more third settings, and transmitting fourth information; , Channel receiving means for receiving channel state information, wherein the first setting is a setting for one or more reports of the channel state information, and is a setting for the one or more reports. Each of the settings includes one first index, the second setting is a setting related to one or more reference signals for measuring the channel state information, and the one or more reference signals Each of the settings for And the third setting includes one index of the first index, one index of the second index, and one third index. The information of No. 4 includes information indicating one or more of the third indexes.

  The program that operates on the device according to the present invention may be a program that controls a Central Processing Unit (CPU) or the like to cause a computer to function so as to realize the functions of the embodiment according to the present invention. The program or information handled by the program is temporarily stored in a volatile memory such as a Random Access Memory (RAM), a non-volatile memory such as a flash memory, a Hard Disk Drive (HDD), or another storage device system.

  Note that a program for implementing the functions of the embodiment according to the present invention may be recorded on a computer-readable recording medium. The program may be realized by causing a computer system to read and execute the program recorded on the recording medium. Here, the “computer system” is a computer system built in the device, and includes an operating system and hardware such as peripheral devices. In addition, the “computer-readable recording medium” is a semiconductor recording medium, an optical recording medium, a magnetic recording medium, a medium that dynamically holds a program for a short time, or another computer-readable recording medium. Is also good.

  Further, each functional block or various features of the device used in the above-described embodiment may be implemented or executed by an electric circuit, for example, an integrated circuit or a plurality of integrated circuits. An electrical circuit designed to perform the functions described herein may be a general purpose processor, digital signal processor (DSP), application specific integrated circuit (ASIC), field programmable gate array (FPGA), or other Logic devices, discrete gate or transistor logic, discrete hardware components, or a combination thereof. A general purpose processor may be a microprocessor, or may be a conventional processor, controller, microcontroller, or state machine. The above-described electric circuit may be configured by a digital circuit or an analog circuit. In addition, in the case where a technology for forming an integrated circuit that substitutes for a current integrated circuit appears due to the progress of semiconductor technology, one or more aspects of the present invention can use a new integrated circuit based on the technology.

Note that the present invention is not limited to the above embodiment. In the embodiment, an example of the device is described. However, the present invention is not limited to this, and stationary or non-movable electronic devices installed indoors and outdoors, for example, AV devices, kitchen devices, It can be applied to terminal devices or communication devices such as cleaning / washing equipment, air conditioning equipment, office equipment, vending machines, and other living equipment.

  As described above, the embodiments of the present invention have been described in detail with reference to the drawings. However, the specific configuration is not limited to the embodiments, and includes a design change or the like without departing from the gist of the present invention. Further, the present invention can be variously modified within the scope shown in the claims, and the technical scope of the present invention includes embodiments obtained by appropriately combining technical means disclosed in different embodiments. It is. The elements described in each of the above embodiments also include a configuration in which elements having the same effects are replaced with each other.

1 (1A, 1B, 1C) Terminal device 3 Base station device 10 TXRU
11 Phase shifter 12 Antenna 101 Upper layer processing unit 103 Control unit 105 Receiving unit 107 Transmitting unit 109 Antenna 301 Upper layer processing unit 303 Control unit 305 Receiving unit 307 Transmitting unit 1013 Scheduling information interpreting unit 1015 Channel state information report control unit 1051 Decoding Unit 1053 Decoding unit 1055 Demultiplexing unit 1057 Wireless receiving unit 1059 Measurement unit 1071 Encoding unit 1073 Modulating unit 1075 Multiplexing unit 1077 Wireless transmitting unit 1079 Uplink reference signal generating unit 3011 Wireless resource control unit 3013 Scheduling unit 3015 Channel state information report control Unit 3051 Decoding unit 3053 Decoding unit 3055 Demultiplexing unit 3057 Wireless receiving unit 3059 Measurement unit 3071 Encoding unit 3073 Modulating unit 3075 Multiplexing unit 3077 Wireless transmitting unit 3079 Downlink reference signal Generating unit

Claims (14)

A terminal device that communicates with a base station device,
Receiving first information including one or more first settings;
Receiving second information including one or more second settings;
Receiving third information including one or more third settings;
A receiving unit that receives the fourth information;
A channel state measuring unit for measuring channel state information;
A transmitting unit for reporting the channel state information,
The first setting is a setting for one or more reports of the channel state information,
Each of the settings for the one or more reports includes one first index;
The second setting is a setting related to one or more reference signals for measuring the channel state information,
Each of the settings for the one or more reference signals includes one second index,
The third setting includes one index of the first index, one index of the second index, and one third index,
The terminal device, wherein the fourth information includes information indicating one or more of the third indexes. One or more third settings are specified based on one or more third indexes included in the fourth information, and the one or more third settings are specified. Identifying one or more first settings and one or more second settings based on the one or more first settings and one or more second settings identified The terminal device according to claim 1, wherein the terminal device transmits one or a plurality of channel state information reports based on the information. The terminal device according to claim 2, wherein the one or more channel state information reports are transmitted by a procedure in a physical layer. The transmission unit,
The terminal device according to claim 1, wherein the terminal device transmits the channel state information while including one of the third indexes. The receiving unit further receives fifth information including one or more fourth settings and sixth information,
The fourth configuration is a configuration related to one or more interference measurement resources for measuring the channel state information,
Each of the settings for the one or more interference measurement resources includes one fourth index,
The terminal device according to claim 1, wherein the third setting further includes one of the fourth indexes. A base station device communicating with the terminal device,
Transmitting first information including one or more first settings;
Transmitting second information including one or more second settings;
Transmitting third information including one or more third settings;
A transmitting unit that transmits fourth information;
A channel receiving unit for receiving channel state information,
The first setting is a setting for one or more reports of the channel state information,
Each of the settings for the one or more reports includes one first index;
The second setting is a setting related to one or more reference signals for measuring the channel state information,
Each of the settings for the one or more reference signals includes one second index,
The third setting includes one index of the first index, one index of the second index, and one third index,
The base station device, wherein the fourth information includes information indicating one or more of the third indexes. The base according to claim 6, wherein one or more channel state information reports based on one or more third settings are received based on one or more third indexes included in the fourth information. Station equipment. The base station apparatus according to claim 7, wherein the one or more channel state information reports are received by a procedure in a physical layer. The base station apparatus according to claim 6, wherein the channel state information includes one of the third indexes. The transmitting unit further transmits fifth information including one or more fourth settings and sixth information,
The fourth configuration is a configuration related to one or more interference measurement resources for measuring the channel state information,
Each of the settings for the one or more interference measurement resources includes one fourth index,
The base station apparatus according to claim 6, wherein the third setting further includes one of the fourth indexes. A communication method of a terminal device communicating with a base station device,
Receiving first information including one or more first settings;
Receiving second information including one or more second settings;
Receiving third information including one or more third settings;
Receiving the fourth information,
Measure channel state information,
Reporting the channel state information;
The first setting is a setting for one or more reports of the channel state information,
Each of the settings for the one or more reports includes one first index;
The second setting is a setting related to one or more reference signals for measuring the channel state information,
Each of the settings for the one or more reference signals includes one second index,
The third setting includes one index of the first index, one index of the second index, and one third index,
The communication method, wherein the fourth information includes information indicating one or more of the third indexes. A communication method of a base station device communicating with a terminal device,
Transmitting first information including one or more first settings;
Transmitting second information including one or more second settings;
Transmitting third information including one or more third settings;
Send the fourth information,
Receiving channel state information,
The first setting is a setting for one or more reports of the channel state information,
Each of the settings for the one or more reports includes one first index;
The second setting is a setting related to one or more reference signals for measuring the channel state information,
Each of the settings for the one or more reference signals includes one second index,
The third setting includes one index of the first index, one index of the second index, and one third index,
The communication method, wherein the fourth information includes information indicating one or more of the third indexes. An integrated circuit mounted on a terminal device that communicates with the base station device,
Receiving first information including one or more first settings;
Receiving second information including one or more second settings;
Receiving third information including one or more third settings;
Receiving means for receiving the fourth information;
Channel state measuring means for measuring channel state information;
Transmitting means for reporting the channel state information,
The first setting is a setting for one or more reports of the channel state information,
Each of the settings for the one or more reports includes one first index;
The second setting is a setting related to one or more reference signals for measuring the channel state information,
Each of the settings for the one or more reference signals includes one second index,
The third setting includes one index of the first index, one index of the second index, and one third index,
The integrated circuit, wherein the fourth information includes information indicating one or more of the third indexes. An integrated circuit mounted on a base station device that communicates with the terminal device,
Transmitting first information including one or more first settings;
Transmitting second information including one or more second settings;
Transmitting third information including one or more third settings;
Transmitting means for transmitting the fourth information;
Channel receiving means for receiving channel state information,
The first setting is a setting for one or more reports of the channel state information,
Each of the settings for the one or more reports includes one first index;
The second setting is a setting related to one or more reference signals for measuring the channel state information,
Each of the settings for the one or more reference signals includes one second index,
The third setting includes one index of the first index, one index of the second index, and one third index,
The integrated circuit, wherein the fourth information includes information indicating one or more of the third indexes.

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