WO2022153966A1 - 端末装置、基地局装置、および、通信方法 - Google Patents
端末装置、基地局装置、および、通信方法 Download PDFInfo
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- WO2022153966A1 WO2022153966A1 PCT/JP2022/000495 JP2022000495W WO2022153966A1 WO 2022153966 A1 WO2022153966 A1 WO 2022153966A1 JP 2022000495 W JP2022000495 W JP 2022000495W WO 2022153966 A1 WO2022153966 A1 WO 2022153966A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
- H04L5/1469—Two-way operation using the same type of signal, i.e. duplex using time-sharing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
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Definitions
- the present invention relates to a terminal device, a base station device, and a communication method.
- the present application claims priority with respect to Japanese Patent Application No. 2021-3157 filed in Japan on January 13, 2021, and the contents thereof are incorporated herein by reference.
- LTE Long Term Evolution
- EUTRA Evolved Universal Terrestrial Radio Access
- 3GPP Third-generation partnership project
- base station equipment is also called eNodeB (evolved NodeB)
- terminal equipment is also called UE (User Equipment).
- LTE is a cellular communication system in which a plurality of areas covered by a base station device are arranged in a cell shape. A single base station appliance may manage multiple serving cells.
- NR New Radio
- IMT International Mobile Telecommunication
- ITU International Telecommunication Union
- Non-Patent Document 1 NR is required to meet the requirements assuming three scenarios of eMBB (enhanced Mobile BroadBand), mMTC (massive Machine Type Communication), and URLLC (Ultra Reliable and Low Latency Communication) within a single technical framework. There is.
- Non-Patent Document 2 studies on expansion of the function of NR have been started.
- One aspect of the present invention provides a terminal device that efficiently communicates, a communication method used for the terminal device, a base station device that efficiently communicates, and a communication method used for the base station device.
- a first aspect of the present invention is a terminal device, wherein a predetermined period of a length provided by an upper layer parameter is divided into one or a plurality of sub-periods based on at least a downlink region.
- a transmission unit that repeatedly transmits to the PUSCH in a certain sub-period of the one or a plurality of sub-periods is provided, and phase continuity is maintained for the repeated transmission of the PUSCH.
- a second aspect of the present invention is a base station apparatus, which is a determination unit that divides a predetermined period of length provided by an upper layer parameter into one or a plurality of sub-periods based on at least a downlink region. And a transmitter that receives repeated transmissions to the PUSCH in a certain sub-period of the one or more sub-periods, and a channel for the repeated transmissions of the PUSCH using DMRS for each of the repeated transmissions of the PUSCH. Make an estimate.
- a third aspect of the present invention is a communication method used for a terminal device, in which a predetermined period of length provided by an upper layer parameter is set to one or a plurality of sub-periods based on at least a downlink region.
- a step of dividing and a step of repeatedly transmitting to the PUSCH in a certain sub-period of the one or a plurality of sub-periods are provided, and phase continuity is maintained for the repeated transmission of the PUSCH.
- the terminal device can efficiently communicate.
- the base station apparatus can efficiently communicate.
- This is an example showing the relationship between the setting ⁇ of the subcarrier interval, the number of OFDM symbols per slot N slot symb , and the CP (cyclic Prefix) setting according to one aspect of the present embodiment.
- It is a figure which shows an example of the composition method of the resource grid which concerns on one aspect of this Embodiment.
- It is a schematic block diagram which shows the structural example of the base station apparatus 3 which concerns on one aspect of this Embodiment.
- Floor (C) may be a floor function for real number C.
- floor (C) may be a function that outputs the largest integer in the range that does not exceed the real number C.
- ceil (D) may be a ceiling function for real number D.
- ceil (D) may be a function that outputs the smallest integer within the range not less than the real number D.
- mod (E, F) may be a function that outputs the remainder of E divided by F.
- mod (E, F) may be a function that outputs the value corresponding to the remainder of E divided by F.
- exp (G) e ⁇ G. Where e is the Napier number. H ⁇ I indicates H to the I power.
- max (J, K) is a function that outputs the maximum value of J and K.
- max (J, K) is a function that outputs J or K when J and K are equal.
- min (L, M) is a function that outputs the maximum value of L and M.
- min (L, M) is a function that outputs L or M when L and M are equal.
- round (N) is a function that outputs an integer value closest to N.
- FIG. 1 is a conceptual diagram of a wireless communication system according to one aspect of the present embodiment.
- the wireless communication system includes at least terminal devices 1A to 1C and a base station device 3 (BS # 3: Base station # 3).
- BS # 3 Base station # 3
- the terminal device that communicates with the base station device 3 is also referred to as the terminal device 1 (UE # 1: User Equipment # 1).
- At least one communication method may be used in the wireless communication system.
- the one communication method may be OFDM (Orthogonal Frequency Division Multiplex).
- CP-OFDM Cyclic Prefix-Orthogonal Frequency Division Multiplex
- DFT-s-OFDM Discrete Fourier Transform-spread-Orthogonal Frequency Division Multiplex
- DFT-s-OFDM is a communication method in which Transform precoding is applied prior to signal generation in CP-OFDM.
- the modified recording is also referred to as DFT recording.
- the base station device 3 may be configured to include one or more transmission devices (or transmission points, transmission / reception devices, transmission / reception points).
- each of the plurality of transmitting devices may be arranged at a geographically different position or may be arranged at the same geographical position.
- the fact that a plurality of transmitting devices are geographically arranged at the same position may mean that the plurality of transmitting devices are configured as one device.
- the base station apparatus 3 may provide one or more serving cells.
- Serving cells may be defined as a set of resources used for wireless communication. Serving cells are also referred to as cells.
- the serving cell may be configured to include at least one downlink component carrier and / or one uplink component carrier.
- the serving cell may be configured to include at least two or more downlink component carriers and / or two or more uplink component carriers.
- the downlink component carrier and the uplink component carrier are also referred to as component carriers.
- one resource grid may be given for one component carrier.
- one resource grid may be given for a set of one component carrier and a certain subcarrier spacing configuration ⁇ .
- the setting ⁇ of the subcarrier interval is also referred to as numerology.
- the resource grid contains N size, ⁇ grid, and x N RB sc subcarriers.
- the resource grid starts from the common resource blocks N start, ⁇ grid, and x .
- the common resource blocks N start, ⁇ grid, and x are also called the reference points of the resource grid.
- the resource grid contains N subframes and ⁇ symb OFDM symbols.
- x is a subscript that indicates the transmission direction, and indicates either a downlink or an uplink.
- One resource grid is given for a set of antenna ports p, a subcarrier spacing setting ⁇ , and a transmission direction x.
- N size, ⁇ grid, x and N start, ⁇ grid, x are given at least based on the upper layer parameter (CarrierBandwidth).
- the upper layer parameters are also referred to as SCS specific carriers.
- One resource grid corresponds to one SCS-specific carrier.
- One component carrier may include one or more SCS-specific carriers. SCS-specific carriers may be included in the system information. For each SCS-specific carrier, one subcarrier spacing setting ⁇ may be given.
- the setting ⁇ of the subcarrier interval may indicate any of 0, 1, 2, 3, or 4.
- FIG. 2 is an example showing the relationship between the setting ⁇ of the subcarrier interval, the number of OFDM symbols per slot N slot symb , and the CP (cyclic Prefix) setting according to one aspect of the present embodiment.
- N slot symb 14
- N frame 20
- ⁇ slot 40
- N slot symb 12
- N frame 20
- a time unit (time unit) T c may be used to express the length of the time domain.
- ⁇ f max 480 kHz.
- N f 4096.
- ⁇ f ref is 15 kHz.
- N f and ref are 2048.
- the transmission of signals on the downlink and / or the transmission of signals on the uplink may be organized into radio frames (system frames, frames) of length T f .
- the radio frame is composed of 10 subframes.
- the OFDM symbol is a unit of the time domain of one communication method.
- the OFDM symbol may be a unit in the CP-OFDM time domain.
- the OFDM symbol may be a unit of the time domain of DFT-s-OFDM.
- the slot may be configured to include a plurality of OFDM symbols.
- one slot may contain consecutive N slot symb OFDM symbols.
- N slot symb 14 may be set.
- Slots may be indexed in the time domain.
- the slot index n ⁇ s may be given in ascending order with integer values in the range 0 to N subframe, ⁇ slot -1 in the subframe.
- the slot indexes n ⁇ s and f may be given in ascending order by integer values in the range of 0 to N frame and ⁇ slot -1 in the radio frame.
- FIG. 3 is a diagram showing an example of a method of configuring a resource grid according to one aspect of the present embodiment.
- the horizontal axis of FIG. 3 indicates a frequency domain.
- FIG. 3 shows a configuration example of a resource grid of setting ⁇ 1 of the subcarrier spacing in the component carrier 300 and a configuration example of a resource grid of setting ⁇ 2 of the subcarrier spacing in the certain component carrier. In this way, one or more subcarrier intervals may be set for a component carrier.
- Point 3000 is an identifier for identifying a certain subcarrier. Point 3000 is also referred to as point A.
- the common resource block (CRB) set 3100 is a set of common resource blocks for the subcarrier interval setting ⁇ 1 .
- the common resource block including the point 3000 (the block indicated by the upward slash in FIG. 3) is also referred to as a reference point of the common resource block set 3100.
- the reference point of the common resource block set 3100 is the common resource block of index 0 with respect to the setting ⁇ 1 of the subcarrier interval.
- the offset 3011 is an offset from the reference point of the common resource block set 3100 to the reference point of the resource grid 3001.
- the offset 3011 is indicated by the number of common resource blocks for the subcarrier spacing setting ⁇ 1 .
- the resource grid 3001 includes N size, ⁇ grid 1 , x common resource blocks starting from the reference point of the resource grid 3001.
- the offset 3013 is an offset from the reference point of the resource grid 3001 to the reference point (N start, ⁇ BWP, i1 ) of the BWP (BandWidth Part) 3003 of the index i1.
- the reference point of BWP3003 of index i1 is the physical resource block of index 0 with respect to the BWP.
- the common resource block set 3200 is a set of common resource blocks for the setting ⁇ 2 of the subcarrier interval.
- the common resource block including the point 3000 (the block indicated by the upward slash in FIG. 3) is also referred to as a reference point of the common resource block set 3200.
- the reference point of the common resource block set 3200 is the common resource block of index 0 with respect to the setting ⁇ 2 of the subcarrier interval.
- the offset 3012 is an offset from the reference point of the common resource block set 3200 to the reference point of the resource grid 3002.
- the offset 3012 is indicated by the number of common resource blocks for the subcarrier spacing ⁇ 2 .
- the resource grid 3002 includes N size, ⁇ grid 2, x common resource blocks starting from the reference point of the resource grid 3002.
- the offset 3014 is an offset from the reference point of the resource grid 3002 to the reference point (N start, ⁇ BWP, i2 ) of the BWP 3004 of the index i2.
- the reference point of BWP3004 of index i2 is the physical resource block of index 0 with respect to the BWP.
- FIG. 4 is a diagram showing a configuration example of the resource grid 3001 according to one aspect of the present embodiment.
- the horizontal axis is the OFDM symbol index l sym and the vertical axis is the subcarrier index k sc .
- the resource grid 3001 contains N size, ⁇ grid 1 , x N RB sc subcarriers, and contains at least N subframe, ⁇ symb OFDM symbols.
- the resources identified by the subcarrier index k sc and the OFDM symbol index l sym are also referred to as resource elements (REs).
- REs resource elements
- the frequency domain of the resource grid corresponds to the SCS-specific carrier.
- the SCS-specific carrier settings are configured to include offsets and some or all of the bandwidth settings.
- the offset indicates the offset from the reference point of the common resource block set to the reference point of the resource grid.
- offset 3011 and offset 3012 are offsets included in the SCS-specific carrier setting.
- the bandwidth setting also indicates the bandwidth of the SCS-specific carrier.
- the bandwidth of the SCS-specific carrier corresponds to the bandwidth of the resource grid.
- N size, ⁇ grid1, x , and N size, ⁇ grid2, x are band settings included in the SCS-specific carrier settings.
- a resource block (RB) contains N RB sc consecutive subcarriers.
- a common resource block at index 0 for a subcarrier interval setting ⁇ includes (or collides, matches) point 3000.
- k sc and c indicate the index of subcarriers in the common resource block set.
- the physical resource blocks are indexed in the frequency domain in ascending order from 0.
- N start, ⁇ BWP, and i indicate the reference point of the BWP of the index i.
- the BWP may be configured as part of the frequency band of the component carrier.
- BWP may be defined as a subset of common resource blocks contained in the resource grid.
- the BWP may include N size, ⁇ BWP, i common resource blocks starting with the reference point N start, ⁇ BWP, i of the BWP.
- the BWP set for the downlink is also called the downlink BWP.
- the BWP set for the uplink is also called the uplink BWP.
- An antenna port may be defined by the fact that the channel on which a symbol is transmitted at one antenna port can be estimated from the channel on which other symbols are transmitted at that antenna port (An antenna port is defined such that the channel over which). a symbol on the antenna port is conveyed can be inverted from the channel over which another symbol on the same antenna port is conveyed).
- the channel may correspond to a physical channel.
- the symbol may correspond to a modulation symbol arranged in the resource element.
- Large-scale characteristics may include at least the long-interval characteristics of the channel. Large-scale characteristics include delay spread (delay spread), Doppler spread (Doppler spread), Doppler shift (Doppler shift), average gain (average gain), average delay (average delay), and beam parameters (spatial Rx parameters). It may include at least some or all.
- the fact that the first antenna port and the second antenna port are QCLs with respect to the beam parameters means that the receiving beam assumed by the receiving side with respect to the first antenna port and the receiving beam assumed by the receiving side with respect to the second antenna port. May be the same.
- the fact that the first antenna port and the second antenna port are QCL in terms of beam parameters means that the transmitting beam assumed by the receiving side with respect to the first antenna port and the transmitting beam assumed by the receiving side with respect to the second antenna port. May be the same.
- the terminal device 1 assumes that the two antenna ports are QCLs when the large-scale characteristics of the channel through which the symbol is transmitted in one antenna port can be estimated from the channel in which the symbol is transmitted in the other antenna port. May be done.
- the fact that the two antenna ports are QCLs may mean that the two antenna ports are assumed to be QCLs.
- Carrier aggregation may be communication using a plurality of aggregated serving cells. Further, carrier aggregation may be to perform communication using a plurality of aggregated component carriers. Further, carrier aggregation may be to perform communication using a plurality of aggregated downlink component carriers. Further, carrier aggregation may be to perform communication using a plurality of aggregated uplink component carriers.
- FIG. 5 is a schematic block diagram showing a configuration example of the base station device 3 according to one aspect of the present embodiment.
- the base station apparatus 3 includes at least a part or all of the radio transmission / reception unit (physical layer processing unit) 30 and / or the upper layer processing unit 34.
- the radio transmission / reception unit 30 includes at least a part or all of an antenna unit 31, an RF (Radio Frequency) unit 32, and a baseband unit 33.
- the upper layer processing unit 34 includes at least a part or all of the medium access control layer processing unit 35 and the radio resource control (RRC: Radio Resource Control) layer processing unit 36.
- RRC Radio Resource Control
- the wireless transmission / reception unit 30 includes at least a part or all of the wireless transmission unit 30a and the wireless reception unit 30b.
- the device configurations of the baseband unit included in the wireless transmission unit 30a and the baseband unit included in the wireless reception unit 30b may be the same or different.
- the device configurations of the RF unit included in the wireless transmission unit 30a and the RF unit included in the wireless reception unit 30b may be the same or different.
- the device configurations of the antenna unit included in the wireless transmission unit 30a and the antenna unit included in the wireless reception unit 30b may be the same or different.
- the radio transmission unit 30a may generate a baseband signal of the downlink physical channel.
- the radio transmission unit 30a may generate a baseband signal of a downlink physical signal.
- the wireless receiver 30b may attempt to detect information transmitted by the uplink physical channel.
- the radio receiver 30b may attempt to detect information transmitted by the uplink physical signal.
- the upper layer processing unit 34 outputs downlink data (for example, a transport block) to the wireless transmission / reception unit 30 (or wireless transmission unit 30a).
- the upper layer processing unit 34 is a part or all of the processing of the MAC (Medium Access Control) layer, the packet data integration protocol (PDCP: Packet Data Convergence Protocol) layer, the wireless link control (RLC: Radio Link Control) layer, and the RRC layer. To do.
- MAC Medium Access Control
- PDCP Packet Data Convergence Protocol
- RLC Radio Link Control
- the medium access control layer processing unit 35 included in the upper layer processing unit 34 processes the MAC layer.
- the radio resource control layer processing unit 36 included in the upper layer processing unit 34 processes the RRC layer.
- the wireless resource control layer processing unit 36 manages various setting information / parameters (for example, RRC parameters) of the terminal device 1.
- the radio resource control layer processing unit 36 sets RRC parameters based on the RRC message received from the terminal device 1.
- the wireless transmission / reception unit 30 performs a part or all of the modulation processing, the coding processing, and the transmission processing.
- the wireless transmission / reception unit 30 (or wireless transmission unit 30a) generates a physical signal by a part or all of modulation processing, coding processing, and baseband signal generation (conversion to time continuous signal) processing for downlink data. do.
- the radio transmission / reception unit 30 (or radio transmission unit 30a) may arrange a physical signal on a component carrier.
- the radio transmission / reception unit 30 (or radio transmission unit 30a) transmits the generated physical signal.
- the wireless transmission / reception unit 30 (or wireless reception unit 30b) performs a part or all of the demodulation processing, the decoding processing, and the reception processing.
- the wireless transmission / reception unit 30 (or the wireless reception unit 30b) outputs the information detected based on at least the demodulation processing and the decoding processing of the received physical signal to the upper layer processing unit 34.
- the wireless transmission / reception unit 30 may carry out carrier sense prior to transmission of a physical signal.
- the RF unit 32 converts the signal received via the antenna unit 31 into a baseband signal by orthogonal demodulation, and removes unnecessary frequency components.
- the RF unit 32 outputs an analog signal to the baseband unit.
- the baseband unit 33 converts the analog signal (analog signal) input from the RF unit 32 into a digital signal (digital signal).
- the baseband unit 33 removes a portion corresponding to CP (Cyclic Prefix) from the converted digital signal, performs a fast Fourier transform (FFT) on the signal from which the CP has been removed, and outputs a signal in the frequency domain. Extract.
- CP Cyclic Prefix
- FFT fast Fourier transform
- the baseband unit 33 performs inverse fast Fourier transform (IFFT) on downlink data to generate an OFDM symbol, adds CP to the generated OFDM symbol, and generates a baseband digital signal. Converts a baseband digital signal into an analog signal. The baseband unit 33 outputs the converted analog signal to the RF unit 32. Deformation recording may be applied to the downlink data prior to the inverse fast Fourier transform.
- IFFT inverse fast Fourier transform
- the RF unit 32 removes excess frequency components from the analog signal input from the baseband unit 33 using a low-pass filter, upconverts the analog signal to the carrier frequency, and transmits the analog signal via the antenna unit 31. do. Further, the RF unit 32 may have a function of controlling the transmission power.
- the RF unit 32 is also referred to as a transmission power control unit.
- One or more serving cells may be set for the terminal device 1.
- Each of the serving cells set for the terminal device 1 is one of PCell (Primary cell, primary cell), PSCell (Primary SCG cell, primary SCG cell), and SCell (Secondary Cell, secondary cell). May be good.
- PCell is a serving cell included in MCG (Master Cell Group).
- the PCell is a cell (implemented cell) that executes an initial connection establishment procedure (initial connection establishment procedure) or a connection re-establishment procedure (connection re-establishment procedure) by the terminal device 1.
- the PSCell is a serving cell included in SCG (Secondary Cell Group).
- the PSCell is a serving cell in which random access is performed by the terminal device 1 in a reconfiguration procedure (Reconfigration with synchronization) accompanied by synchronization.
- SCell may be included in either MCG or SCG.
- Serving cell group is a name that includes at least MCG and SCG.
- the serving cell group may include one or more serving cells (or component carriers).
- One or more serving cells (or component carriers) included in the serving cell group may be operated by carrier aggregation.
- One or more downlink BWPs may be set for each of the serving cells (or downlink component carriers).
- One or more uplink BWPs may be configured for each serving cell (or uplink component carrier).
- one downlink BWP may be configured as the active downlink BWP (or one downlink BWP). May be activated).
- one uplink BWP may be configured as the active uplink BWP (or one uplink BWP is May be activated).
- PDSCH, PDCCH, and CSI-RS may be received on the active downlink BWP.
- the terminal device 1 may receive PDSCH, PDCCH, and CSI-RS on the active downlink BWP.
- PUCCH and PUSCH may be transmitted on the active uplink BWP.
- the terminal device 1 may transmit PUCCH and PUSCH in the active uplink BWP.
- the active downlink BWP and the active uplink BWP are also referred to as an active BWP.
- PDSCH, PDCCH, and CSI-RS do not have to be received on the downlink BWP (inactive downlink BWP) other than the active downlink BWP.
- the terminal device 1 does not have to receive PDSCH, PDCCH, and CSI-RS in the downlink BWP other than the active downlink BWP.
- PUCCH and PUSCH do not have to be transmitted in the uplink BWP (inactive uplink BWP) other than the active uplink BWP.
- the terminal device 1 does not have to transmit PUCCH and PUSCH in the uplink BWP other than the active uplink BWP.
- the inactive downlink BWP and the inactive uplink BWP are also referred to as inactive BWP.
- the downlink BWP switch is to deactivate one active downlink BWP and activate any of the inactive downlink BWPs other than the one active downlink BWP. Used.
- the downlink BWP switching may be controlled by the BWP field included in the downlink control information. Downlink BWP switching may be controlled based on higher layer parameters.
- Uplink BWP switching is used to deactivate one active uplink BWP and activate any of the inactive uplink BWPs other than the one active uplink BWP.
- the uplink BWP switching may be controlled by the BWP field included in the downlink control information. Uplink BWP switching may be controlled based on higher layer parameters.
- two or more downlink BWPs need not be set as active downlink BWPs.
- One downlink BWP may be active for the serving cell at a given time.
- two or more uplink BWPs need not be set as active uplink BWPs.
- One uplink BWP may be active for the serving cell at a given time.
- FIG. 6 is a schematic block diagram showing a configuration example of the terminal device 1 according to one aspect of the present embodiment.
- the terminal device 1 includes at least a part or all of the wireless transmission / reception unit (physical layer processing unit) 10 and the upper layer processing unit 14.
- the radio transmission / reception unit 10 includes at least a part or all of the antenna unit 11, the RF unit 12, and the baseband unit 13.
- the upper layer processing unit 14 includes at least a part or all of the medium access control layer processing unit 15 and the radio resource control layer processing unit 16.
- the wireless transmission / reception unit 10 includes at least a part or all of the wireless transmission unit 10a and the wireless reception unit 10b.
- the device configurations of the baseband unit 13 included in the wireless transmission unit 10a and the baseband unit 13 included in the wireless reception unit 10b may be the same or different.
- the device configurations of the RF unit 12 included in the wireless transmission unit 10a and the RF unit 12 included in the wireless reception unit 10b may be the same or different.
- the device configurations of the antenna unit 11 included in the wireless transmission unit 10a and the antenna unit 11 included in the wireless reception unit 10b may be the same or different.
- the radio transmission unit 10a may generate a baseband signal of the uplink physical channel.
- the radio transmission unit 10a may generate a baseband signal of an uplink physical signal.
- the wireless receiver 10b may attempt to detect information transmitted by the downlink physical channel.
- the radio receiver 10b may attempt to detect information transmitted by the uplink physical signal.
- the upper layer processing unit 14 outputs uplink data (for example, a transport block) to the wireless transmission / reception unit 10 (or wireless transmission unit 10a).
- the upper layer processing unit 14 performs part or all of the processing of the MAC layer, the packet data integration protocol layer, the wireless link control layer, and the RRC layer.
- the medium access control layer processing unit 15 included in the upper layer processing unit 14 processes the MAC layer.
- the radio resource control layer processing unit 16 included in the upper layer processing unit 14 processes the RRC layer.
- the radio resource control layer processing unit 16 manages various setting information / parameters (for example, RRC parameters) of the terminal device 1.
- the radio resource control layer processing unit 16 sets RRC parameters based on the RRC message received from the base station apparatus 3.
- the wireless transmission / reception unit 10 performs a part or all of the modulation processing, the coding processing, and the transmission processing.
- the wireless transmission / reception unit 10 (or wireless transmission unit 10a) generates a physical signal by a part or all of modulation processing, coding processing, and baseband signal generation (conversion to time continuous signal) processing for uplink data. do.
- the radio transmission / reception unit 10 (or radio transmission unit 10a) may arrange a physical signal in a certain BWP (active uplink BWP).
- the radio transmission / reception unit 10 (or radio transmission unit 10a) transmits the generated physical signal.
- the wireless transmission / reception unit 10 (or wireless reception unit 10b) performs a part or all of the demodulation processing, the decoding processing, and the reception processing.
- the radio transmission / reception unit 10 (or radio reception unit 30b) may receive a physical signal at a BWP (active downlink BWP) having a certain serving cell.
- the wireless transmission / reception unit 10 (or the wireless reception unit 10b) outputs the information detected based on at least the demodulation processing and the decoding processing of the received physical signal to the upper layer processing unit 14.
- the wireless transmission / reception unit 10 may perform carrier sense prior to transmission of a physical signal.
- the RF unit 12 converts the signal received via the antenna unit 11 into a baseband signal by orthogonal demodulation, and removes unnecessary frequency components.
- the RF unit 12 outputs the processed analog signal to the baseband unit 13.
- the baseband unit 13 converts the analog signal input from the RF unit 12 into a digital signal.
- the baseband unit 13 removes a portion corresponding to CP (Cyclic Prefix) from the converted digital signal, performs a fast Fourier transform (FFT) on the signal from which the CP has been removed, and outputs a signal in the frequency domain. Extract.
- CP Cyclic Prefix
- FFT fast Fourier transform
- the baseband unit 13 performs inverse fast Fourier transform (IFFT) on uplink data to generate an OFDM symbol, adds CP to the generated OFDM symbol, and generates a baseband digital signal. Converts a baseband digital signal into an analog signal. The baseband unit 13 outputs the converted analog signal to the RF unit 12. Deformation recording may be applied to the uplink data prior to the inverse fast Fourier transform.
- IFFT inverse fast Fourier transform
- the RF unit 12 removes excess frequency components from the analog signal input from the baseband unit 13 using a low-pass filter, upconverts the analog signal to the carrier frequency, and transmits the analog signal via the antenna unit 11. do. Further, the RF unit 12 may have a function of controlling the transmission power.
- the RF unit 12 is also referred to as a transmission power control unit.
- the physical signal (signal) will be described below.
- Physical signal is a general term for downlink physical channel, downlink physical signal, uplink physical channel, and uplink physical channel.
- the physical channel is a general term for a downlink physical channel and an uplink physical channel.
- the physical signal is a general term for a downlink physical signal and an uplink physical signal.
- the uplink physical channel may correspond to a set of resource elements that carry information that occurs in the upper layers.
- the uplink physical channel may be the physical channel used in the uplink component carrier.
- the uplink physical channel may be transmitted by the terminal device 1.
- the uplink physical channel may be received by the base station apparatus 3.
- at least some or all of the following uplink physical channels may be used.
- ⁇ PUCCH Physical Uplink Control CHannel
- PUSCH Physical Uplink Shared CHannel
- PRACH Physical Random Access CHannel
- PUCCH may be used to transmit uplink control information (UCI: Uplink Control Information).
- UCI Uplink Control Information
- PUCCH may be transmitted to transmit uplink control information (deliver, transmission, convey).
- the uplink control information may be mapped to PUCCH.
- the terminal device 1 may transmit the PUCCH in which the uplink control information is arranged.
- the base station apparatus 3 may receive the PUCCH in which the uplink control information is arranged.
- the uplink control information (uplink control information bit, uplink control information sequence, uplink control information type) includes channel state information (CSI: Channel State Information), scheduling request (SR: Scheduling Request), and HARQ-ACK (Hybrid). AutomaticRepeatrequestACKnowledgement) Includes at least some or all of the information.
- CSI Channel State Information
- SR Scheduling Request
- HARQ-ACK Hybrid
- the channel state information is also referred to as a channel state information bit or a channel state information series.
- the scheduling request is also called a scheduling request bit or a scheduling request series.
- the HARQ-ACK information is also referred to as a HARQ-ACK information bit or a HARQ-ACK information series.
- HARQ-ACK information is a transport block (or TB: Transport block, MAC PDU: Medium Access Control Protocol Data Unit, DL-SCH: Downlink-Shared Channel, UL-SCH: Uplink-Shared Channel, PDSCH: Physical Downlink Shared It may contain at least HARQ-ACK corresponding to Channel, PUSCH: Physical Uplink Shared CHannel).
- HARQ-ACK may indicate ACK (acknowledgement) or NACK (negative-acknowledgement) corresponding to the transport block.
- An ACK may indicate that the transport block has been successfully decoded (has been decoded).
- NACK may indicate that the transport block has not been successfully decrypted (has not been decoded).
- the HARQ-ACK information may include a HARQ-ACK codebook containing one or more HARQ-ACK bits.
- Correspondence between HARQ-ACK information and the transport block may mean that the HARQ-ACK information and PDSCH used for transmission of the transport block correspond.
- HARQ-ACK may indicate ACK or NACK corresponding to one CBG (Code Block Group) included in the transport block.
- CBG Code Block Group
- Scheduling requests may at least be used to request PUSCH (or UL-SCH) resources for initial transmission.
- the scheduling request bit may be used to indicate either a positive SR (positive SR) or a negative SR (negative SR).
- the fact that the scheduling request bit indicates a positive SR is also referred to as "a positive SR is transmitted”.
- a positive SR may indicate that terminal device 1 requires PUSCH (or UL-SCH) resources for initial transmission.
- a positive SR may indicate that the scheduling request is triggered by the upper layer. Positive SRs may be sent when the higher layer has instructed them to send a scheduling request.
- the fact that the scheduling request bit indicates a negative SR is also referred to as "a negative SR is transmitted”.
- a negative SR may indicate that terminal device 1 does not require PUSCH (or UL-SCH) resources for initial transmission.
- a negative SR may indicate that the scheduling request is not triggered by the upper layer. Negative SRs may be sent if the higher layer does not instruct them to send a scheduling request.
- the channel state information may include at least a part or all of a channel quality index (CQI: Channel Quality Indicator), a precoder matrix index (PMI: Precoder Matrix Indicator), and a rank index (RI: Rank Indicator).
- CQI is an index related to the quality of the propagation path (for example, propagation intensity) or the quality of the physical channel
- PMI is an index related to the precoder
- RI is an index related to the transmission rank (or the number of transmission layers).
- Channel state information may be given at least on the basis of receiving at least a physical signal (eg, CSI-RS) used for channel measurement.
- the channel state information may be selected by the terminal device 1 at least based on receiving the physical signal used for channel measurement.
- the channel measurement may include an interference measurement.
- PUCCH may support the PUCCH format.
- PUCCH may be a set of resource elements used to convey the PUCCH format.
- PUCCH may include the PUCCH format.
- PUSCH may be used to transmit transport blocks and / or uplink control information.
- PUSCH may be used to transmit UL-SCH-corresponding transport blocks and / or uplink control information.
- PUSCH may be used to convey transport blocks and / or uplink control information.
- PUSCH may be used to convey UL-SCH-corresponding transport blocks and / or uplink control information.
- the transport block may be located on the PUSCH.
- the transport block corresponding to UL-SCH may be located in PUSCH.
- the uplink control information may be located in PUSCH.
- the terminal device 1 may transmit a transport block and / or a PUSCH in which uplink control information is arranged.
- the base station apparatus 3 may receive the transport block and / or the PUSCH in which the uplink control information is arranged.
- PRACH may be used to send a random access preamble.
- PRACH may be used to convey a random access preamble.
- x u may be a ZC (Zadoff Chu) series.
- j is an imaginary unit.
- ⁇ is the pi.
- C v corresponds to the cyclic shift of the PRACH series.
- L RA corresponds to the length of the PRACH series.
- the L RA is 839, or 139.
- i is an integer in the range 0 to L RA -1.
- u is a series index for PRACH series.
- the terminal device 1 may transmit PRACH.
- the base station apparatus 3 may receive
- the random access preamble is identified (determined, given) at least based on the cyclic shift Cv of the PRACH series and the series index u for the PRACH series. Each of the 64 random access preambles identified may be indexed.
- the uplink physical signal may correspond to a set of resource elements.
- the uplink physical signal does not have to carry the information generated in the upper layer.
- the uplink physical signal may be the physical signal used in the uplink component carrier.
- the terminal device 1 may transmit an uplink physical signal.
- the base station device 3 may receive an uplink physical signal.
- at least some or all of the following uplink physical signals may be used.
- ⁇ UL DMRS UpLink Demodulation Reference Signal
- SRS Sounding Reference Signal
- UL PTRS UpLink Phase Tracking Reference Signal
- UL DMRS is a general term for DMRS for PUSCH and DMRS for PUCCH.
- the set of antenna ports of DMRS for PUSCH may be given based on the set of antenna ports for the PUSCH. That is, the set of DMRS antenna ports for PUSCH may be the same as the set of PUSCH antenna ports.
- the transmission of PUSCH and the transmission of DMRS for the PUSCH may be indicated (or scheduled) in one DCI format.
- PUSCH and DMRS for the PUSCH may be collectively referred to as PUSCH.
- Transmission of PUSCH may be transmission of PUSCH and DMRS for the PUSCH.
- PUSCH may be estimated from the DMRS for the PUSCH. That is, the propagation path of the PUSCH may be estimated from the DMRS for the PUSCH.
- the set of antenna ports of DMRS for PUCCH may be the same as the set of antenna ports of PUCCH.
- the transmission of PUCCH and the transmission of DMRS for that PUCCH may be indicated (or triggered) in one DCI format.
- the mapping of PUCCH to resource elements (resource element mapping) and / or the mapping of DMRS to resource elements for that PUCCH may be given in one PUCCH format.
- PUCCH and DMRS for the PUCCH may be collectively referred to as PUCCH.
- Transmission of PUCCH may be transmission of PUCCH and DMRS for the PUCCH.
- PUCCH may be estimated from DMRS for the PUCCH. That is, the propagation path of the PUCCH may be estimated from the DMRS for the PUCCH.
- the downlink physical channel may correspond to a set of resource elements carrying information generated in the upper layer.
- the downlink physical channel may be the physical channel used in the downlink component carrier.
- the base station apparatus 3 may transmit a downlink physical channel.
- the terminal device 1 may receive the downlink physical channel.
- at least some or all of the following downlink physical channels may be used.
- PBCH Physical Broadcast Channel
- PDCCH Physical Downlink Control Channel
- PDSCH Physical Downlink Shared Channel
- PBCH may be used to transmit MIB (MIB: Master Information Block) and / or physical layer control information.
- the PBCH may be transmitted to transmit (deliver, transmission, convey) the MIB and / or physical layer control information.
- BCH may be mapped to PBCH.
- the terminal device 1 may receive the MIB and / or the PBCH in which the physical layer control information is arranged.
- the base station apparatus 3 may transmit a MIB and / or a PBCH in which physical layer control information is arranged. Physical layer control information is also called PBCH payload or PBCH payload related to timing.
- the MIB may include one or more upper layer parameters.
- the physical layer control information includes 8 bits.
- the physical layer control information may include at least a part or all of the following 0A to 0D.
- the radio frame bit is used to indicate a radio frame through which PBCH is transmitted (a radio frame including a slot in which PBCH is transmitted).
- the radio frame bit includes 4 bits.
- the radio frame bit may be composed of 4 bits of the 10-bit radio frame indicator.
- the radio frame indicator may at least be used to identify radio frames from index 0 to index 1023.
- the half radio frame bit is used to indicate whether the PBCH is transmitted in the first five subframes or the latter five subframes among the radio frames in which the PBCH is transmitted.
- the half radio frame may be configured to include five subframes.
- the half radio frame may be composed of five subframes in the first half of the ten subframes included in the radio frame.
- the half radio frame may be composed of the latter five subframes out of the ten subframes included in the radio frame.
- the SS / PBCH block index bit is used to indicate the SS / PBCH block index.
- the SS / PBCH block index bit includes 3 bits.
- the SS / PBCH block index bit may be composed of 3 bits of the 6-bit SS / PBCH block index specifier.
- the SS / PBCH block index specifier may at least be used to identify SS / PBCH blocks from index 0 to index 63.
- the subcarrier offset bit is used to indicate the subcarrier offset.
- the subcarrier offset may be used to indicate the difference between the first subcarrier to which the PBCH is mapped and the first subcarrier to which the index 0 control resource set is mapped.
- PDCCH may be used to transmit downlink control information (DCI: Downlink Control Information).
- DCI Downlink Control Information
- the PDCCH may be transmitted to transmit downlink control information (deliver, transmission, convey).
- the downlink control information may be mapped to the PDCCH.
- the terminal device 1 may receive the PDCCH in which the downlink control information is arranged.
- the base station apparatus 3 may transmit the PDCCH in which the downlink control information is arranged.
- the downlink control information may correspond to the DCI format.
- the downlink control information may be included in the DCI format.
- the downlink control information may be placed in each field in DCI format.
- DCI format 0_1, DCI format 0_1, DCI format 1_1, and DCI format 1_1 are DCI formats containing different sets of fields.
- the uplink DCI format is a general term for DCI format 0_0 and DCI format 0_1.
- the downlink DCI format is a general term for DCI format 1_0 and DCI format 1_1.
- DCI format 0_0 is at least used for scheduling PUSCH in a cell (or placed in a cell).
- DCI format 0_0 comprises at least some or all of the fields 1A to 1E.
- the DCI format specific field may indicate whether the DCI format including the DCI format specific field is the uplink DCI format or the downlink DCI format.
- the DCI format specific field contained in DCI format 0_0 may indicate 0 (or may indicate that DCI format 0_0 is uplink DCI format).
- the frequency domain resource allocation field contained in DCI format 0_0 may at least be used to indicate the frequency resource allocation for PUSCH.
- the time domain resource allocation field contained in DCI format 0_0 may at least be used to indicate the allocation of time resources for PUSCH.
- the frequency hopping flag field may at least be used to indicate whether frequency hopping is applied to PUSCH.
- the MCS field contained in DCI format 0_0 may at least be used to indicate the modulation scheme for PUSCH and / or part or all of the target code rate.
- the target code rate may be the target code rate for the PUSCH transport block.
- the size of the PUSCH transport block (TBS: Transport Block Size) may be given at least based on the target code rate and some or all of the modulation schemes for the PUSCH.
- DCI format 0_0 does not have to include the fields used in the CSI request (CSI request). That is, the DCI format 0_0 does not have to require CSI.
- DCI format 0_0 does not have to include the carrier indicator field. That is, the uplink component carrier in which the PUSCH scheduled in DCI format 0_0 is arranged may be the same as the uplink component carrier in which the PDCCH containing the DCI format 0_0 is arranged.
- DCI format 0_0 does not have to include the BWP field. That is, the uplink BWP on which the PUSCH scheduled in DCI format 0_0 is located may be the same as the uplink BWP in which the PDCCH containing the DCI format 0_0 is located.
- DCI format 0_1 is at least used for scheduling PUSCH (located in a cell) in a cell.
- DCI format 0-1 is configured to include at least some or all of the fields 2A to 2H.
- the DCI format specific field included in the DCI format 0_1 may indicate 0 (or may indicate that the DCI format 0_1 is an uplink DCI format).
- the frequency domain resource allocation field contained in DCI format 0-1 may at least be used to indicate the frequency resource allocation for PUSCH.
- the time domain resource allocation field contained in DCI format 0-1 may at least be used to indicate the allocation of time resources for PUSCH.
- the MCS field contained in DCI format 0-1 may at least be used to indicate the modulation scheme for PUSCH and / or part or all of the target code rate.
- the BWP field may be used to indicate the uplink BWP on which the PUSCH is located. If the DCI format 0_1 does not include a BWP field, the uplink BWP in which the PUSCH is located may be the same as the uplink BWP in which the PDCCH containing the DCI format 0_1 used to schedule the PUSCH is located.
- the BWP field included in DCI format 0-1 used for scheduling PUSCH arranged in the uplink component carrier is 2 or more. The number of bits may be 1 bit or more.
- the bits of the BWP field included in DCI format 0-1 used for scheduling PUSCH arranged in the uplink component carrier may be 0 bits (or the DCI format 0-1 used to schedule the PUSCH placed on the uplink component carrier may not include the BWP field).
- the CSI request field is at least used to direct CSI reporting.
- the carrier indicator field may be used to indicate the uplink component carrier in which the PUSCH is located. If DCI format 0_1 does not include a carrier indicator field, the uplink component carrier in which the PUSCH is located is the same as the uplink component carrier in which the PDCCH containing DCI format 0_1 used to schedule the PUSCH is located. May be good.
- the PUSCH arranged in the serving cell group The number of bits of the carrier indicator field included in the DCI format 0-1 used for scheduling may be 1 bit or more (for example, 3 bits).
- the PUSCH arranged in the certain serving cell group is scheduled for scheduling.
- the number of bits of the carrier indicator field contained in the DCI format 0-1 used may be 0 bits (or the carrier indicator field is included in the DCI format 0-1 used for scheduling PUSCHs arranged in the serving cell group. It does not have to be).
- DCI format 1_0 is at least used for scheduling PDSCH (located in a cell) in a cell.
- DCI format 1_0 is configured to include at least part or all of 3A to 3F.
- the DCI format specific field included in the DCI format 1_0 may indicate 1 (or may indicate that the DCI format 1_0 is the downlink DCI format).
- the frequency domain resource allocation field contained in DCI format 1_0 may at least be used to indicate the frequency resource allocation for PDSCH.
- the time domain resource allocation field contained in DCI format 1_0 may at least be used to indicate the allocation of time resources for PDSCH.
- the MCS field contained in DCI format 1_0 may at least be used to indicate the modulation scheme for PDSCH and / or part or all of the target code rate.
- the target code rate may be the target code rate for the PDSCH transport block.
- the PDSCH transport block size (TBS: Transport Block Size) may be given at least based on the target code rate and some or all of the modulation schemes for the PDSCH.
- the PDSCH_HARQ feedback timing indicator field may at least be used to indicate the offset from the slot containing the last OFDM symbol of PDSCH to the slot containing the first OFDM symbol of PUCCH.
- the PUCCH resource indicator field may be a field indicating an index of either one or a plurality of PUCCH resources included in the PUCCH resource set.
- the PUCCH resource set may include one or more PUCCH resources.
- DCI format 1_0 does not have to include the carrier indicator field. That is, the downlink component carrier in which the PDSCH scheduled by DCI format 1_0 is arranged may be the same as the downlink component carrier in which the PDCCH including the DCI format 1_0 is arranged.
- DCI format 1_0 does not have to include the BWP field. That is, the downlink BWP in which the PDSCH scheduled by DCI format 1_0 is arranged may be the same as the downlink BWP in which the PDCCH containing the DCI format 1_0 is arranged.
- DCI format 1_1 is at least used for scheduling PDSCH in a cell (or placed in a cell).
- DCI format 1_1 is configured to include at least some or all of 4A to 4I.
- the DCI format specific field included in the DCI format 1_1 may indicate 1 (or may indicate that the DCI format 1-11 is the downlink DCI format).
- the frequency domain resource allocation field contained in DCI format 1-11 may at least be used to indicate the frequency resource allocation for PDSCH.
- the time domain resource allocation fields contained in DCI format 1-11 may at least be used to indicate the allocation of time resources for PDSCH.
- the MCS field contained in DCI format 1-11 may at least be used to indicate the modulation scheme for PDSCH and / or part or all of the target code rate.
- the PDSCH_HARQ feedback timing indicator field indicates the offset from the slot containing the last OFDM symbol of PDSCH to the slot containing the first OFDM symbol of PUCCH. At least may be used for. If DCI format 1-1 does not include the PDSCH_HARQ feedback timing indicator field, the offset from the slot containing the last OFDM symbol in PDSCH to the slot containing the first OFDM symbol in PUCCH may be specified by the upper layer parameters. good.
- the PUCCH resource indicator field may be a field indicating an index of either one or a plurality of PUCCH resources included in the PUCCH resource set.
- the BWP field may be used to indicate the downlink BWP in which the PDSCH is located. If the DCI format 1-11 does not include a BWP field, the downlink BWP in which the PDSCH is located may be the same as the downlink BWP in which the PDCCH containing the DCI format 1-1-1 used to schedule the PDSCH is located.
- the number of downlink BWPs set in the terminal device 1 in a downlink component carrier is 2 or more
- the bits of the BWP field included in the DCI format 1-1-1 used for scheduling the PDSCH placed in the downlink component carrier may be 0 bits (or the DCI format 1-11 used to schedule the PDSCH placed on the downlink component carrier may not include the BWP field).
- the carrier indicator field may be used to indicate the downlink component carrier in which the PDSCH is located. If DCI format 1-11 does not include a carrier indicator field, the downlink component carrier in which the PDSCH is located is the same as the downlink component carrier in which the PDCCH containing DCI format 1-1-1, used for scheduling the PDSCH, is located. May be good.
- the PDSCH arranged in the certain serving cell group The number of bits of the carrier indicator field included in the DCI format 1-1-1 used for scheduling may be 1 bit or more (for example, 3 bits).
- the PDSCH arranged in the certain serving cell group is scheduled for scheduling.
- the number of bits of the carrier indicator field contained in the DCI format 1-11 used may be 0 bits (or the carrier indicator field is included in the DCI format 1-11 used for scheduling PDSCHs arranged in the serving cell group. It does not have to be).
- PDSCH may be used to transmit transport blocks.
- PDSCH may be used to transmit the transport block corresponding to DL-SCH.
- PDSCH may be used to transmit the transport block.
- PDSCH may be used to transmit the transport block corresponding to DL-SCH.
- the transport block may be located on the PDSCH.
- the transport block corresponding to DL-SCH may be arranged in PDSCH.
- the base station apparatus 3 may transmit PDSCH.
- the terminal device 1 may receive the PDSCH.
- the downlink physical signal may correspond to a set of resource elements.
- the downlink physical signal does not have to carry the information generated in the upper layer.
- the downlink physical signal may be a physical signal used in the downlink component carrier.
- the downlink physical signal may be transmitted by the base station apparatus 3.
- the downlink physical signal may be transmitted by the terminal device 1.
- at least some or all of the following downlink physical signals may be used.
- SS Synchronization signal
- DL DMRS DownLink DeModulation Reference Signal
- CSI-RS Channel State Information-Reference Signal
- DL PTRS DownLink Phase Tracking Reference Signal
- the synchronization signal may be at least used by the terminal device 1 to synchronize the downlink frequency domain and / or the time domain.
- the synchronization signal is a general term for PSS (PrimarySynchronizationSignal) and SSS (SecondarySynchronizationSignal).
- FIG. 7 is a diagram showing a configuration example of the SS / PBCH block according to one aspect of the present embodiment.
- the horizontal axis represents the time axis (OFDM symbol index l sym ), and the vertical axis represents the frequency domain.
- the shaded blocks show the set of resource elements for PSS.
- the grid block shows the set of resource elements for SSS.
- the horizontal line block indicates a set of resource elements for PBCH and DMRS for the PBCH (DMRS related to PBCH, DMRS contained in PBCH, DMRS corresponding to PBCH).
- the SS / PBCH block includes PSS, SSS, and PBCH.
- the SS / PBCH block also contains four consecutive OFDM symbols.
- the SS / PBCH block contains 240 subcarriers.
- PSS is located in the 57th to 183rd subcarriers of the 1st OFDM symbol.
- the SSS is located in the 57th to 183rd subcarriers of the 3rd OFDM symbol.
- Zero may be set for the 1st to 56th subcarriers of the 1st OFDM symbol.
- the 184th to 240th subcarriers of the first OFDM symbol may be set to zero.
- the 49th to 56th subcarriers of the 3rd OFDM symbol may be set to zero.
- the 184th to 192nd subcarriers of the third OFDM symbol may be set to zero.
- the PBCH is placed in the first to 240th subcarriers of the second OFDM symbol and in which the DMRS for the PBCH is not placed.
- the PBCH is placed in the 1st to 48th subcarriers of the 3rd OFDM symbol and in which the DMRS for the PBCH is not placed.
- the PBCH is placed in the 193rd to 240th subcarriers of the third OFDM symbol and in which the DMRS for the PBCH is not placed.
- the PBCH is placed in the 1st to 240th subcarriers of the 4th OFDM symbol and in which the DMRS for the PBCH is not placed.
- the antenna ports of DMRS for PSS, SSS, PBCH, and PBCH may be the same.
- the PBCH to which the PBCH symbol is transmitted at an antenna port is the DMRS for the PBCH placed in the slot to which the PBCH is mapped, and for the PBCH contained in the SS / PBCH block containing the PBCH. May be estimated by DMRS.
- DL DMRS is a general term for DMRS for PBCH, DMRS for PDSCH, and DMRS for PDCCH.
- a set of antenna ports for DMRS (DMRS related to PDSCH, DMRS included in PDSCH, DMRS corresponding to PDSCH) for PDSCH may be given based on the set of antenna ports for PDSCH. That is, the set of DMRS antenna ports for the PDSCH may be the same as the set of antenna ports for the PDSCH.
- the transmission of PDSCH and the transmission of DMRS for the PDSCH may be indicated (or scheduled) in one DCI format.
- PDSCH and DMRS for the PDSCH may be collectively referred to as PDSCH.
- Sending a PDSCH may be sending a PDSCH and a DMRS for the PDSCH.
- the PDSCH may be estimated from the DMRS for the PDSCH. That is, the propagation path of the PDSCH may be estimated from the DMRS for the PDSCH. If a set of resource elements to which a PDSCH symbol is transmitted and a set of resource elements to which a DMRS symbol for the PDSCH is transmitted are included in the same recording resource group (PRG: Precoding Resource Group). In some cases, the PDSCH at which the PDSCH symbol is transmitted at an antenna port may be estimated by the DMRS for the PDSCH.
- PRG Precoding Resource Group
- the antenna port of DMRS for PDCCH (DMRS related to PDCCH, DMRS included in PDCCH, DMRS corresponding to PDCCH) may be the same as the antenna port for PDCCH. Twice
- the PDCCH may be estimated from the DMRS for the PDCCH. That is, the propagation path of the PDCCH may be estimated from the DMRS for the PDCCH. If the set of resource elements that carry the symbol of a PDCCH and the set of resource elements that carry the symbol of DMRS for that PDCCH apply (or are expected to apply) the same precoder. If applicable), the PDCCH at which the PDCCH symbol is transmitted at an antenna port may be estimated by the DMRS for the PDCCH.
- BCH Broadcast CHannel
- UL-SCH Uplink-Shared CHannel
- DL-SCH Downlink-Shared CHannel
- the channels used in the MAC layer are called transport channels.
- the unit of the transport channel used in the MAC layer is also called a transport block (TB) or a MAC PDU (Protocol Data Unit).
- HARQ Hybrid Automatic Repeat reQuest
- a transport block is a unit of data that the MAC layer delivers to the physical layer. In the physical layer, the transport block is mapped to a codeword, and modulation processing is performed for each codeword.
- One UL-SCH and one DL-SCH may be given for each serving cell.
- BCH may be given to PCell.
- BCH does not have to be given to PSCell and SCell.
- BCCH Broadcast Control CHannel
- CCCH Common Control CHannel
- DCCH Dedicated Control CHannel
- BCCH is a MIB, or RRC layer channel used to transmit system information.
- CCCH Common Control CHannel
- CCCH may be used to transmit a common RRC message in a plurality of terminal devices 1.
- CCCH may be used, for example, for a terminal device 1 that is not RRC-connected.
- the DCCH (Dedicated Control CHannel) may be at least used for transmitting a dedicated RRC message to the terminal device 1.
- the DCCH may be used, for example, for the terminal device 1 connected to the RRC.
- the RRC message contains one or more RRC parameters (information elements).
- the RRC message may include a MIB.
- the RRC message may also include system information.
- the RRC message may also include a message corresponding to CCCH.
- the RRC message may also include a message corresponding to DCCH.
- RRC messages containing messages corresponding to DCCH are also referred to as individual RRC messages.
- BCCH in the logical channel may be mapped to BCH or DL-SCH in the transport channel.
- CCCH on the logical channel may be mapped to DL-SCH or UL-SCH on the transport channel.
- DCCH on the logical channel may be mapped to DL-SCH or UL-SCH on the transport channel.
- UL-SCH on the transport channel may be mapped to PUSCH on the physical channel.
- the DL-SCH on the transport channel may be mapped to the PDSCH on the physical channel.
- BCH on the transport channel may be mapped to PBCH on the physical channel.
- the upper layer parameter is a parameter included in the RRC message or MAC CE (Medium Access Control Control Element). That is, the upper layer parameter is a general term for the MIB, system information, the message corresponding to CCCH, the message corresponding to DCCH, and the parameters included in MAC CE.
- the parameters included in MAC CE are transmitted by the MAC CE (Control Element) command.
- the procedure performed by the terminal device 1 includes at least a part or all of the following 5A to 5C.
- the cell search is a procedure used for detecting a physical cell ID (physical cell identity) by synchronizing a cell with respect to a time domain and a frequency domain by the terminal device 1. That is, the terminal device 1 may detect the physical cell ID by synchronizing the time domain and the frequency domain with a certain cell by cell search.
- the PSS series is given at least based on the physical cell ID.
- the SSS sequence is given at least based on the physical cell ID.
- SS / PBCH block candidates indicate resources for which transmission of SS / PBCH blocks is permitted (possible, reserved, set, specified, possible).
- the set of SS / PBCH block candidates in a certain half radio frame is also called an SS burst set.
- the SS burst set is also referred to as a transmission window (transmission window), an SS transmission window (SS transmission window), or a DRS transmission window (Discovery Reference Signal transmission window).
- the base station device 3 transmits one or more index SS / PBCH blocks at a predetermined cycle.
- the terminal device 1 may detect at least one SS / PBCH block of the SS / PBCH block of the one or more indexes and try to decode the PBCH contained in the SS / PBCH block.
- Random access is a procedure that includes at least a part or all of message 1, message 2, message 3, and message 4.
- Message 1 is a procedure in which PRACH is transmitted by the terminal device 1.
- the terminal device 1 transmits PRACH at one PRACH opportunity selected from one or more PRACH opportunities based on at least the index of SS / PBCH block candidates detected based on the cell search.
- Each PRACH opportunity is defined based on at least time-domain and frequency-domain resources.
- the terminal device 1 transmits one random access preamble selected from the PRACH opportunities corresponding to the index of the SS / PBCH block candidate in which the SS / PBCH block is detected.
- Message 2 is a procedure for attempting to detect DCI format 1_0 with CRC (Cyclic Redundancy Check) scrambled by RA-RNTI (Random Access-Radio Network Temporary Identifier) by the terminal device 1.
- the terminal device 1 includes the DCI format in the control resource set given based on the MIB included in the PBCH included in the SS / PBCH block detected based on the cell search, and the resource indicated based on the setting of the search area set. Attempts to detect PDCCH.
- Message 2 is also referred to as a random access response.
- Message 3 is a procedure for transmitting a PUSCH scheduled by a random access response grant included in DCI format 1_0 detected by the message 2 procedure.
- the random access response grant is indicated by the MAC CE included in the PDSCH scheduled according to the DCI format 1_0.
- the PUSCH scheduled based on the random access response grant is either Message 3 PUSCH or PUSCH.
- Message 3 PUSCH includes a conflict resolution identifier (contention resolution identifier) MAC CE.
- Conflict resolution ID MAC CE includes a conflict resolution ID.
- Message 3 PUSCH retransmission is scheduled in DCI format 0_0 with CRC scrambled based on TC-RNTI (Temporary Cell-Radio Network Temporary Identifier).
- TC-RNTI Temporary Cell-Radio Network Temporary Identifier
- Message 4 is a procedure for attempting to detect DCI format 1_0 with CRC scrambled based on either C-RNTI (Cell-Radio Network Temporary Identifier) or TC-RNTI.
- the terminal device 1 receives the PDSCH scheduled based on the DCI format 1_0.
- the PDSCH may include a conflict resolution ID.
- Data communication is a general term for downlink communication and uplink communication.
- the terminal device 1 attempts to detect the PDCCH in the control resource set and the resource specified based on the search area set (monitor the PDCCH, monitor the PDCCH).
- the control resource set is a set of resources composed of a predetermined number of resource blocks and a predetermined number of OFDM symbols.
- the control resource set may be composed of continuous resources (non-interleaved mapping) or distributed resources (interleaver mapping).
- the set of resource blocks that make up the control resource set may be indicated by the upper layer parameters.
- the number of OFDM symbols that make up the control resource set may be indicated by the upper layer parameters.
- Terminal device 1 attempts to detect PDCCH in the search area set.
- attempting to detect PDCCH in the search area set may be attempting to detect PDCCH candidates in the search area set, or may be attempting to detect the DCI format in the search area set.
- the PDCCH may be detected in the control resource set, the PDCCH candidate may be detected in the control resource set, or the DCI format may be detected in the control resource set. There may be.
- the search area set is defined as a set of PDCCH candidates.
- the search area set may be a CSS (Common Search Space) set or a USS (UE-specific Search Space) set.
- the terminal device 1 includes a type 0 PDCCH common search area set (Type 0 PDCCH common search space set), a type 0a PDCCH common search area set (Type 0a PDCCH common search space set), and a type 1 PDCCH common search area set (Type 1 PDCCH common search space set).
- One of the type 2 PDCCH common search area set (Type2 PDCCH common search space set), the type 3 PDCCH common search area set (Type3 PDCCH common search space set), and / or the UE individual PDCCH search area set (UE-specific search space set). Attempts to detect PDCCH candidates in part or all.
- the type 0 PDCCH common search area set may be used as the common search area set of index 0.
- the type 0 PDCCH common search area set may be a common search area set of index 0.
- CSS set is a general term for type 0 PDCCH common search area set, type 0a PDCCH common search area set, type 1 PDCCH common search area set, type 2 PDCCH common search area set, and type 3 PDCCH common search area set.
- the USS set is also referred to as the UE individual PDCCH search region set.
- a search area set is associated with (included, corresponds to) a control resource set.
- the index of the control resource set associated with the search area set may be indicated by the upper layer parameters.
- 6A to 6C may be indicated by at least upper layer parameters.
- the monitoring opportunity of a certain search area set may correspond to the OFDM symbol in which the first OFDM symbol of the control resource set related to the certain search area set is placed.
- the monitoring opportunity for a search region set may correspond to the resources of that control resource set starting with the first OFDM symbol of the control resource set associated with the search region set.
- the monitoring opportunity of the search region set is given at least based on the monitoring interval of the PDCCH, the monitoring pattern of the PDCCH in the slot, and some or all of the monitoring offsets of the PDCCH.
- FIG. 8 is a diagram showing an example of a monitoring opportunity of the search area set according to one aspect of the present embodiment.
- the search area set 91 and the search area set 92 are set in the primary cell 301
- the search area set 93 is set in the secondary cell 302
- the search area set 94 is set in the secondary cell 303.
- the blocks indicated by the grid lines indicate the search area set 91
- the blocks indicated by the upward-sloping diagonal line indicate the search area set 92
- the blocks indicated by the upward-sloping diagonal line indicate the search area set 93, which are indicated by horizontal lines.
- the blocks shown show the search area set 94.
- the monitoring interval of the search area set 91 is set to 1 slot
- the monitoring offset of the search area set 91 is set to 0 slot
- the monitoring pattern of the search area set 91 is [1,0,0,0,0,0, It is set to 0,1,0,0,0,0,0,0]. That is, the monitoring opportunity of the search area set 91 corresponds to the first OFDM symbol (OFDM symbol # 0) and the eighth OFDM symbol (OFDM symbol # 7) in each of the slots.
- the monitoring interval of the search area set 92 is set to 2 slots, the monitoring offset of the search area set 92 is set to 0 slot, and the monitoring pattern of the search area set 92 is [1,0,0,0,0,0, It is set to 0,0,0,0,0,0,0,0]. That is, the monitoring opportunity of the search area set 92 corresponds to the first OFDM symbol (OFDM symbol # 0) in each of the even slots.
- the monitoring interval of the search area set 93 is set to 2 slots, the monitoring offset of the search area set 93 is set to 0 slot, and the monitoring pattern of the search area set 93 is [0,0,0,0,0,0, It is set to 0,1,0,0,0,0,0,0]. That is, the monitoring opportunity of the search area set 93 corresponds to the eighth OFDM symbol (OFDM symbol # 7) in each of the even slots.
- OFDM symbol # 7 OFDM symbol
- the monitoring interval of the search area set 94 is set to 2 slots, the monitoring offset of the search area set 94 is set to 1 slot, and the monitoring pattern of the search area set 94 is [1,0,0,0,0,0, It is set to 0,0,0,0,0,0,0,0]. That is, the monitoring opportunity of the search area set 94 corresponds to the first OFDM symbol (OFDM symbol # 0) in each of the odd slots.
- the Type 0 PDCCH common search area set may at least be used for DCI formats with CRC (Cyclic Redundancy Check) sequences scrambled by SI-RNTI (System Information-Radio Network Temporary Identifier).
- CRC Cyclic Redundancy Check
- the Type 0a PDCCH common search area set may at least be used for DCI formats with CRC (Cyclic Redundancy Check) sequences scrambled by SI-RNTI (System Information-Radio Network Temporary Identifier).
- CRC Cyclic Redundancy Check
- the type 1 PDCCH common search area set is a CRC series scrambled by RA-RNTI (Random Access-Radio Network Temporary Identifier) and / or a CRC series scrambled by TC-RNTI (Temporary Cell-Radio Network Temporary Identifier). It may at least be used for the accompanying DCI format.
- RA-RNTI Random Access-Radio Network Temporary Identifier
- TC-RNTI Temporary Cell-Radio Network Temporary Identifier
- the Type 2 PDCCH common search area set may be used for DCI formats with CRC sequences scrambled by P-RNTI (Paging-Radio Network Temporary Identifier).
- P-RNTI Paging-Radio Network Temporary Identifier
- the Type 3 PDCCH common search area set may be used for DCI formats with CRC sequences scrambled by C-RNTI (Cell-Radio Network Temporary Identifier).
- C-RNTI Cell-Radio Network Temporary Identifier
- the UE individual PDCCH search region set may at least be used for DCI formats with CRC sequences scrambled by C-RNTI.
- the terminal device 1 detects the downlink DCI format.
- the detected downlink DCI format is at least used for PDSCH resource allocation.
- the detected downlink DCI format is also referred to as a downlink assignment.
- the terminal device 1 attempts to receive the PDSCH. Based on the PUCCH resource indicated based on the detected downlink DCI format, the HARQ-ACK corresponding to the PDSCH (HARQ-ACK corresponding to the transport block included in the PDSCH) is reported to the base station apparatus 3.
- the terminal device 1 In uplink communication, the terminal device 1 detects the uplink DCI format.
- the detected DCI format is at least used for PUSCH resource allocation.
- the detected uplink DCI format is also referred to as an uplink grant.
- the terminal device 1 transmits the PUSCH.
- the uplink grant that schedules the PUSCH is set for each transmission cycle of the PUSCH.
- PUSCH is scheduled by the uplink DCI format
- some or all of the information presented by the uplink DCI format may be presented by the uplink grant set in the case of the scheduling set.
- FIG. 9 is a diagram showing an example of PUSCH transmission according to one aspect of the present embodiment.
- the horizontal axis of FIG. 9 is the time axis.
- a predetermined period (Certain duration) 9000 is set on the time axis.
- the predetermined period 9000 includes the PUSCH entities 9001 to 9005.
- the transmission of a series of PUSCH entities included in the predetermined period 9000 is also referred to as PUSCH transmission T 9000 .
- the substance of PUSCH is a unit for generating a baseband signal of PUSCH. That is, the baseband unit 13 may generate a baseband signal of uplink data for each entity of PUSCH.
- the generation of the baseband signal of the uplink data is also referred to as baseband processing.
- the generation of the baseband signal of the uplink data by the baseband unit 13 includes at least a part or all of the following steps B1 to B8. Step B1) Scramble Step B2) Modulation process Step B3) Layer mapping Step B4) Deformation recording Step B5) Pre-recording Step B6) Symbol mapping to VRB Step B7) Mapping from VRB to PRB Step B8) Baseband signal generation
- the baseband unit 13 Prior to the implementation of step B1, the baseband unit 13 generates the bit sequence b based on at least the encoding of the uplink data.
- the elements of the bit sequence b are called b (k).
- k is an integer from 0 to M bit -1.
- M bit indicates the length (or size) of the bit sequence b.
- step B1 scrambling is applied to the bit sequence b.
- the element b (k) of the bit sequence b may be scrambled by the element c (k) of the bit sequence c.
- the bit sequence c is a bit sequence used for scrambling.
- the bit sequence c may be a pseudo-random sequence.
- the value of RNTI used for scrambling the CRC added to the DCI format used for scheduling the entity of PUSCH may be used for the initialization of the bit sequence c.
- the bit sequence ba a is input in step B2.
- the bit sequence b which is the input information of the procedure B1 may be input to the bit sequence procedure B2 as a b a .
- step B2 the modulation process is applied to the bit sequence ba .
- the complex numerical symbol sequence d generated by the modulation process for the bit sequence ba a is input to step B3.
- the element of the complex numerical symbol series d is d (j).
- j is an integer from 0 to M symb -1.
- the type of modulation processing may include a part or all of QPSK (Quardarature Phase Shift Keying), 16QAM (Quardarature Amplitude Modulation), 64QAM, 256QAM, or 1024QAM.
- the bit sequence ba a which is the input information of the procedure B2, may be input to the procedure B3 as the complex numerical modulation symbol sequence d .
- step B3 layer mapping is applied to the complex number symbol sequence d.
- the complex-valued symbol sequence d is divided into v complex-valued symbol sequences x (h) .
- the elements of the hth complex numerical symbol series x (h) are x (h) (g).
- v indicates the number of layers for the PUSCH entity.
- g indicates an integer from 0 to M layer symb -1.
- M layer symb indicates the number of complex numerical modulation symbols for each complex numerical symbol series.
- M layer symb may be determined by M layer symb / v.
- h indicates an integer from 0 to v-1.
- the complex numerical symbol series d which is the input information of step B3 may be input to step B4 as the 0th complex numerical symbol series x (0) .
- step B4 the modified recording is applied to the complex value symbol sequence x (h) .
- the complex number symbol sequence x (h) is converted to y (h) .
- the transformation recording in step B4 corresponds to the DFT (Discrete Fourier Transform) for the complex numerical symbol sequence x (h) .
- step B4 If the modified recording is not applied in step B4, even if the hth complex value modulation symbol x (h) , which is the input information of step B4, is input to step B5 as the hth complex value modulation symbol y (h) . good.
- the signal waveform applied to the PUSCH entity is CP-OFDM, CP-OFDM may not be applied in step B4.
- step B5 pre-recording is applied to the complex-valued symbol sequence y (h) .
- [z (0) (g), z (1) (g), ... z (p) (g), ..., z (P-1) (g)] T W.
- T W.
- p the p-th complex value
- the elements z (p) (g) of the symbol series z (p ) are generated.
- p represents an integer from 0 to P-1.
- P indicates the number of the p-th complex numerical symbol series z (p) .
- P is also called the number of antenna ports.
- W is a matrix of P ⁇ v. W is also called a recording matrix. Further, [A, B, ..., C] indicates a row vector composed of at least the row vectors A, B, and C. [] T indicates the transpose of the row vector.
- the h-th complex-valued symbol sequence y (h) which is the input information in step B5 may be input in step B6 as the p-th complex-valued symbol sequence z (p) . ..
- FIG. 10 is a diagram showing an example of symbol mapping to VRB according to one aspect of the present embodiment.
- the horizontal axis is the OFDM symbol index l sym and the vertical axis is the subcarrier index k a sc .
- k a sc indicates the subcarrier index in the region of VRB.
- each of the blocks shown in FIG. 10 indicates a resource element.
- the symbol mapping to VRB in step B6 the column vector of the gth element of the complex numerical symbol series z (p) [z (0) (g), z (1) (g), ...
- z (p) (G), ..., z (P-1) (g)] T may be mapped to one of the resource elements included in the VRB assigned to the PUSCH entity.
- the column vector z [z (0) (g), z (1) (g), ... z (p) (g), ... of the elements of the complex numerical symbol series z (p) . ⁇ ⁇ , Z (P-1) (g)] T may be mapped to a resource element based on the subcarrier index k a sc priority.
- mapping from VRB to PRB may be performed.
- the column vector z [z (0) (g), z (1 ) of the elements of the complex-valued symbol sequence z (p) mapped to the OFDM symbol index l sym of the subcarrier index k sc . ) (G), ... z (p) (g), ..., z (P-1) (g)] T is stored in a (k sc , l sym ).
- a (k sc , l sym ) is also referred to as the content (or value) of the OFDM symbol index l sym of the subcarrier index k sc .
- step B8 the baseband signal s l sym (t) is generated at least based on the content a (k sc , l sym ) of the OFDM symbol index l sym of the subcarrier index k sc .
- the baseband signal generation in step B8 corresponds to IFFT (Inverse Fast Fourier Transform) for the content a (k sc , l sym ).
- the baseband signal s lsym (t) generated in step B8 is input to the RF unit 12.
- the signal power is amplified by the power amplifier and transmitted in the antenna unit 11.
- the base station device 3 receives the PUSCH entity of the terminal device 1.
- the baseband unit 33 of the base station apparatus 3 may perform baseband processing of uplink data for each entity of PUSCH.
- the generation of the baseband signal of the uplink data by the baseband unit 33 includes at least a part or all of the following steps B1 to B8.
- step C1 the content estimation is applied to the baseband signal r lsym (t) input from the RF unit 32.
- the estimated value r (k sc , l sym ) of the content for each resource element is acquired by applying FFT (Fast Fourier Transform) to the baseband signal r l sym (t).
- the FFT corresponds to the inverse operation of the IFFT in step B8.
- r (k sc , l sym ) is an estimate of the content of the OFDM symbol index l sym of the subcarrier index k sc .
- step C2 the PRB to VRB mapping is applied to the content estimate r (k sc , l sym ).
- the PRB to VRB mapping corresponds to the inverse operation of the VRB to PRB mapping in step B7.
- step C3 an estimate of the received symbol sequence is applied, at least based on the estimated value r (k sc , l sym ) of the content mapped to the VRB.
- the estimated value of the content mapped to each resource element is acquired based on the subcarrier index k a sc priority.
- the column vector of the elements of the complex numerical symbol series z (q) r, a after acquisition is [z (0) r, a (g), z (1) r, a (g), ⁇ z (q ). ) R, a (g), ⁇ , z (Q-1) r, a (g)] T.
- step C3 the column vector of the elements of the complex numerical symbol series z (q) r, a [z (0) r, a (g), z (1) r, a (g), ... z ( q) r, a (g), ⁇ , z (Q-1) r, a (g)] T is phase-corrected.
- the phase correction is performed by changing the matrix V to the column vector of the elements of the complex numerical symbol series z (q) r, a [z (0) r, a (g), z (1) r, a (g), ⁇ ⁇ ⁇ Z (q) r, a (g), ⁇ ⁇ ⁇ , z (Q-1) r, a (g)]
- the matrix V is determined at least based on the channel estimate matrix H r .
- the channel estimate matrix H r is an estimate of the channel matrix H.
- the channel matrix H indicates the variation in the phase / amplitude of the propagation path from each of the transmitting antenna ports of the terminal device 1 to each of the receiving antenna ports of the base station device 3.
- the phase / amplitude fluctuation of the propagation path also includes the phase / amplitude fluctuation caused by the processing of the RF unit 12 (for example, the processing in the power amplifier).
- the channel matrix H is a P ⁇ Q matrix.
- the matrix V is a Q ⁇ P matrix.
- the column vector of the elements of the complex numerical symbol series z (p) r [z (0) r (g), z (1) r (g), ... z (p) r (g), ... ⁇ , Z (Q-1) r (g)] T is the column vector [z (0) (g), z (1) (g), ⁇ z of the elements of the complex numerical symbol series z (p) . (P) (g), ..., z (Q-1) (g)] This is an estimated value of T.
- step C4 the column vector of the elements of the complex numerical symbol series z (p) r [z (0) r (g), z (1) r (g), ⁇ z (p) r (g) ,. ⁇ ⁇ , Z (Q-1) r (g)]
- the inverse operation of pre-recording is applied.
- the matrix vector of the elements of the complex numerical symbol series z (p) r [z (0) r (g), z (1) r (g), ⁇ z (p) r (g) ), ..., z (Q-1) r (g)]
- T the matrix vector of the elements of the complex numerical symbol sequence y (h) r [ y (0) r (g), y (1) r (g), ... y (h) r (g), ..., y (v-1) r (g)] T is generated ..
- the column vector of the elements of the complex numerical symbol series y (h) r [y (0) r (g), y (1) r (g), ... y (h) r (g), ... ⁇ , Y (v-1) r (g)] T is the column vector [y (0) (g), y (1) (g), ⁇ y of the elements of the complex numerical symbol series y (h) . (H) (g), ..., y (v-1) (g)] This is an estimated value of T.
- step C4 if the inverse operation of pre-recording is not applied, the column vector of the elements of the complex value symbol series z (p) r [z (0) r (g), z (1) r (g), ... z (p) r (g), ⁇ , z (Q-1) r (g)] T is a column vector of elements of the complex numerical symbol series y (h) r [y (0) r (g), y (1) r (g), ... y (h) r (g), ..., y (v-1) r (g)] Entered in step C5 as T.
- the inverse operation of the pre-recording may not be applied in the procedure C4 of the base station apparatus 33.
- step C5 the inverse operation of the modified recording is applied to the complex value symbol sequence y (h) r .
- the complex value symbol sequence y (h) r is converted to x (h) r .
- the complex value symbol series x (h) r is an estimate of the complex value symbol series x (h) .
- the inverse operation of the modified recording may not be applied in the procedure C5 of the baseband unit 33.
- the inverse operation of the transformation recording in the procedure C5 corresponds to the IDFT (Inverse Discrete Fourier Transform) for the complex numerical symbol sequence y (h) r .
- IDFT Inverse Discrete Fourier Transform
- step C5 If the inverse operation of the modified recording is not applied to the complex numerical symbol series y (h) r in step C5, the input information y (h) r in step C5 is input to step C6 as x (h) r . May be done.
- step C6 layer demapping is applied to the complex number symbol sequence x (h) .
- v complex-valued symbol sequences x (h) are combined into one sequence.
- the combined complex-valued symbol series d r in layer demapping is an estimate of the complex-valued symbol series d.
- the layer demapping may not be applied in the procedure C6 of the baseband unit 33. If layer demapping is not applied in step C6, the complex-valued symbol sequence x (h) may be input in step C7 as the complex-valued symbol sequence d r .
- step C7 the demodulation process is applied to the complex numerical symbol series d r .
- the LLR Log Likelihood Ratio
- the calculated series b a r is an estimate of the complex numerical symbol series b a .
- the complex value symbol series d r may be input to step C8 as the series b a r .
- step C8 descramble is applied to the series bar.
- the sequence b r is calculated based on at least the sequence b a r and the bit sequence c.
- the sequence b r is an estimate of the bit sequence b.
- the uplink data is extracted.
- the DMRS associated with the PUSCH entity is used to obtain the channel estimate matrix H r .
- the DMRS associated with PUSCH entity 9001 is used to obtain the channel estimate matrix H r for PUSCH entity 9001.
- DMRS related to PUSCH entity 9002 is used to acquire the channel estimation value matrix H r for PUSCH entity 9002.
- the estimation accuracy of the channel estimation matrix H r will be improved by using the DMRS associated with each of the plurality of PUSCH entities to obtain the channel estimation matrix H r for the PUSCH entity 9001. ..
- PUSCH For example, to use the DMRS associated with PUSCH entity 9002 and the DMRS associated with PUSCH entity 9002 to obtain the channel estimate matrix H r for PUSCH entity 9001, PUSCH It is required that the phase / amplitude fluctuation caused by the processing of the RF unit 12 with respect to the entity 9001 of PUSCH is not substantially different from the fluctuation of the phase / amplitude caused by the processing of the RF unit with respect to the entity 9002 of PUSCH. ..
- the fact that the phase variation caused by the processing of the RF unit 12 with respect to the PUSCH entity 9001 is not substantially different from the phase variation caused by the processing of the RF unit with respect to the PUSCH entity 9002 means that the phase is not substantially different.
- the power amplifier is one of the elements of the RF unit 12 that affects the phase continuity and / or the power consistency. In order to maintain phase continuity and / or power consistency, it is desirable to keep the transmission power setting constant in the PUSCH entity 9001 and PUSCH 9002.
- the terminal device 1 may recognize that the transmission power setting is constant during a predetermined period of 9000. Further, the terminal device 1 may maintain the phase continuity and / or power consistency of the PUSCH entity included in the predetermined period 9000 based on the fact that the transmission power setting is constant in the predetermined period 9000. ..
- the base station apparatus 3 is at least based on recognizing that the phase continuity and / or power consistency of the PUSCH entity included in the predetermined period 9000 is maintained, and the base band of the PUSCH entity 9001.
- DMRS related to PUSCH entity 9001, DMRS related to PUSCH entity 9002, DMRS related to PUSCH entity 9003, DMRS related to PUSCH entity 9004, and related to PUSCH entity 9005 At least part or all of DMRS may be used.
- FIG. 16 is a diagram showing a setting example of a predetermined period 9000 according to one aspect of the present embodiment.
- the horizontal axis indicates the time axis.
- the grid on the horizontal axis indicates the boundaries of the slots.
- slot indexes are assigned to each slot in ascending order.
- 16000 indicates a reference point.
- 16001 indicates an offset from the reference point to the beginning of the predetermined period 9000.
- the position of the predetermined period 9000 may be determined at least based on the offset 16001 from the reference point 16000.
- the determined predetermined period 9000 may be set periodically.
- the predetermined period 9000a may be set to start from the end of the predetermined period 9000.
- the predetermined period 9000b may be set to start from the end of the predetermined period 9000a.
- a cycle of a predetermined period of 9000 may be provided by the parameters of the upper layer.
- the predetermined period 9000a may be started 5 X behind the start of the predetermined period 9000.
- a length of 9000 for a predetermined period may be provided by the parameters of the upper layer.
- the predetermined period 9000, the predetermined period 9000a, and the predetermined period 9000b are also collectively referred to as the predetermined period 9000.
- FIG. 11 is a diagram showing an example of a first repetitive type of PUSCH transmission according to one aspect of the present embodiment.
- the horizontal axis indicates the time axis.
- the grid on the horizontal axis indicates the boundaries of the slots.
- slot indexes are assigned to each slot in ascending order.
- each of the PUSCH entities 11000 to 11009 is mapped to any slot.
- the number of repetitions of PUSCH is 10.
- each PUSCH entity has resources from the beginning of the slot to the end of the slot.
- the period indicated by 11011 and 11014 is the downlink region.
- the period indicated by 11012 and 11015 is a flexible region.
- the period indicated by 11013 and 11016 is the uplink region.
- TDD pattern settings that include at least periods 11011, 11012, 11013, 11014, 11015, and 11016 are also referred to as TDD pattern settings.
- a TDD pattern setting is a setting on the downlink, a flexible region, and a time domain configured based on at least part or all of the uplink.
- the TDD pattern setting may be set for a terminal device connected to a cell operated by TDD. Further, the TDD pattern setting may be set for a terminal device that does not support full duplex communication in a certain cell.
- whether or not the PUSCH entity is transmitted is determined at least based on the TDD pattern setting. For example, in the first iteration type of PUSCH, if at least a part of the time domain resource of the PUSCH entity is included in the downlink area, the transmission of the PUSCH entity may be canceled. Further, when all the time domain resources of the PUSCH entity are not included in the downlink area, the PUSCH entity may be transmitted.
- each of the PUSCH entities may be mapped to a different slot.
- the time domain resource of a PUSCH is determined based on at least the time domain resource allocation information.
- the time domain resource allocation information indicates one or both of the OFDM symbol index at the beginning of the PUSCH entity and the number of OFDM symbols of the PUSCH entity.
- the time domain resource allocation information that is, in the first iteration type of PUSCH, each of the PUSCH entities may start from the same OFDM symbol index. Also, each PUSCH entity may contain the same number of OFDM symbols.
- the predetermined period 9000 may be set as a period from slot # n to slot # n + 9.
- the PUSCH entities 11000, 11001, 11005, and 11006 may not be transmitted.
- the terminal device 1 may satisfy the phase continuity and / or power consistency of the PUSCH entities 11002, 11003, 11004, 11007, 11008, and 11009.
- the terminal device 1 may at least monitor the downlink signal (for example, PDCCH, SS / PBCH block, or CSI-RS) in slot # n + 5.
- the terminal device 1 monitors the downlink signal in slot # n + 5
- the setting of the RF unit 12 of the terminal device 1 may be changed. If the setting of the RF unit 12 is changed, the terminal device 1 may satisfy the phase continuity and / or power consistency of the PUSCH entities 11002, 11003, 11004, 11007, 11008, and 11009. It can be difficult.
- the predetermined period 9000 may be used to determine one or more sub-periods.
- the terminal device 1 may determine one or more sub-periods based on at least the TDD pattern setting.
- one or more sub-periods may be determined as a continuous period within a predetermined period 9000 that does not include a downlink region.
- one or more sub-periods may be determined as an uplink region during a predetermined period 9000 and a continuous period composed of a flexible region.
- the first sub-period in FIG. 11 may be a period including period 11012 and period 11013.
- the second sub-period in FIG. 11 may be a period including the period 11015 and the period 11016.
- one or more sub-periods may be determined as the period during which the PUSCH entity is transmitted, out of a continuous period during the predetermined period 9000 that does not include the downlink area.
- the one or more sub-periods may be determined as the period during which the PUSCH entity is transmitted, out of a continuous period composed of the uplink region and the flexible region during the predetermined period 9000.
- the first sub-period in FIG. 11 may be a period including the PUSCH entity 11002, the PUSCH entity 11003, and the PUSCH entity 11004.
- the second sub-period in FIG. 11 may be a period including the PUSCH entity 11007, the PUSCH entity 11008, and the PUSCH entity 11009.
- the terminal device 1 may maintain phase continuity and / or power consistency for each sub-period.
- the terminal device 1 may maintain the phase continuity and / or power consistency of one or more PUSCH entities included in a sub-period.
- the terminal device 1 may maintain the phase continuity and / or power consistency of one or more PUSCH entities included in other sub-periods.
- the terminal device 1 does not have to maintain the phase continuity and / or power consistency between the PUSCH entity included in the certain sub-period and the PUSCH entity included in the other sub-period.
- the sub-period may be the unit of frequency hopping.
- the terminal device 1 transmits one or more PUCSH entities included in a certain sub-period in the first frequency band, and one or more PUSCH entities included in another sub-period in the second frequency band. You may send it with.
- the first frequency band may be different from the second frequency band.
- the terminal device 1 includes one or more PUSCH entities included in a certain sub-period, at least based on the fact that one or more PUSCH entities included in the first frequency band are transmitted in the next sub-period of the given period.
- a second frequency band which is the actual transmission band of PUSCH, may be determined.
- the base station apparatus 3 includes one or more PUSCH entities included in a certain sub-period, at least based on the fact that one or more PUSCH entities included in the first frequency band are transmitted in the next sub-period of the given period.
- the second frequency band which is the transmission band of the actual PUSCH of the above, may be determined.
- FIG. 12 is a diagram showing an example of the first repeating type of PUSCH according to one aspect of the present embodiment.
- 12001 indicates the period during which the transmission of PUSCH is canceled.
- the start time t1 of the period 12001 coincides with the beginning of slot # n + 3.
- the end time t2 of period 12001 coincides with the end of slot # n + 3.
- the period 12001 may be determined at least based on the DCI format.
- the DCI format used to determine how long the PUSCH transmission is canceled may differ from the DCI format used to schedule the PUSCH.
- the DCI format used for determining the period during which the transmission of PUSCH is canceled may be the DCI format used for scheduling the PUSCH.
- the period during which the transmission of PUSCH is canceled is also referred to as an uplink cancellation area.
- the DCI format may indicate the time frequency resource in which the transmission of the PUSCH entity should be cancelled. If at least a portion of the PUSCH entity's OFDM symbol overlaps the time-frequency resource, the transmission of the PUSCH entity's OFDM symbol may be cancelled. Also, if the other OFDM symbols of the PUSCH entity do not overlap with the time frequency resource, the transmission of the other OFDM symbols of the PUSCH entity may not be cancelled.
- the terminal device 1 may cancel a part or all of the transmission of the actual PUSCH, at least based on the period during which the transmission of the PUSCH is canceled. For example, the terminal device 1 may determine one or more sub-periods based on at least the period during which the PUSCH transmission is cancelled.
- the first sub-period in FIG. 12 may be a period including a period 11012 and a period from the beginning of the period 11013 to the time t1.
- the second sub-period in FIG. 12 may be a period including a period from the time t2 to the end of the period 11013.
- the third sub-period in FIG. 12 may be a period including the period 11015 and the period 11016.
- the first sub-period in FIG. 12 may be a period including the PUSCH entity 11002.
- the second sub-period in FIG. 12 may be a period including the entity 11004 of PUSCH.
- the third sub-period in FIG. 12 may be a period including the PUSCH entity 11007, the PUSCH entity 11008, and the PUSCH entity 11009.
- the terminal device 1 may maintain phase continuity and / or power consistency for each sub-period.
- the terminal device 1 may maintain the phase continuity and / or power consistency of the PUSCH 11007, the PUSCH entity 11008, and the PUSCH entity 11009 included in the third sub-period.
- the terminal device 1 does not maintain the phase continuity and / or power consistency between the PUSCH entity included in the first sub-period and the PUSCH entity included in the third sub-period. May be good. Further, the terminal device 1 does not maintain the phase continuity and / or power consistency between the PUSCH entity included in the second sub-period and the PUSCH entity included in the third sub-period. May be good.
- the terminal device 1 maintains the phase continuity and / or power consistency between the PUSCH entity included in the first sub-period and the PUSCH entity included in the second sub-period. good. That is, when one sub-period and another sub-period are specified by the period during which the transmission of PUSCH is canceled, the terminal device 1 is included in the PUSCH entity included in the certain sub-period and the other sub-period. It may maintain phase continuity and / or power consistency with the PUSCH entity.
- the PUSCH entity included in the first sub-period and the second The phase continuity and / or power consistency with the PUSCH entity included in the sub-period may be maintained.
- FIG. 13 is a diagram showing an example of the first repeating type of PUSCH according to one aspect of the present embodiment.
- 13001 indicates the period during which the transmission of PUSCH is canceled.
- the start time t3 of the period 13001 is within the range of slot # n + 3, but is located behind the beginning of slot # n + 3.
- the end time t4 of the period 13001 is within the range of slot # n + 3, but is located ahead of the end of slot # n + 3.
- period 13001 may be determined at least based on the DCI format.
- the DCI format used to determine how long the PUSCH transmission is canceled may differ from the DCI format used to schedule the PUSCH.
- the DCI format used for determining the period during which the transmission of PUSCH is canceled may be the DCI format used for scheduling the PUSCH.
- the first sub-period in FIG. 13 may be a period including a period 11012 and a period from the beginning of the period 11013 to the time t3.
- the second sub-period in FIG. 13 may be a period including a period from the time t4 to the end of the period 11013.
- the third sub-period in FIG. 13 may be a period including the period 11015 and the period 11016.
- the first sub-period in FIG. 13 may be a period including the PUSCH entity 11002 and the period from the beginning of the PUSCH entity 11013 to the time t3.
- the second sub-period in FIG. 13 may be a period including the period from the time t4 of the PUSCH entity 11013 to the end and the PUSCH entity 11004.
- the third sub-period in FIG. 13 may be a period including the PUSCH entity 11007, the PUSCH entity 11008, and the PUSCH entity 11009.
- the terminal device 1 may maintain phase continuity and / or power consistency for each sub-period. For example, the terminal device 1 maintains the phase continuity and / or power consistency between the PUSCH entity 11002 included in the first sub-period and the period from the beginning of the PUSCH entity 11003 to the time t3. You may. Further, the terminal device 1 maintains the phase continuity and / or power consistency between the period from the time t4 of the PUSCH entity 11003 to the end included in the second sub-period and the PUSCH entity 11004. You may. Further, the terminal device 1 may maintain the phase continuity and / or power consistency of the PUSCH 11007, the PUSCH entity 11008, and the PUSCH entity 11009 included in the third sub-period.
- the terminal device 1 does not maintain the phase continuity and / or power consistency between the PUSCH entity included in the first sub-period and the PUSCH entity included in the third sub-period. May be good. Further, the terminal device 1 does not maintain the phase continuity and / or power consistency between the PUSCH entity included in the second sub-period and the PUSCH entity included in the third sub-period. May be good.
- the terminal device 1 maintains the phase continuity and / or power consistency between the PUSCH entity included in the first sub-period and the PUSCH entity included in the second sub-period. good. That is, when one sub-period and another sub-period are specified by the period during which the transmission of PUSCH is canceled, the terminal device 1 is included in the PUSCH entity included in the certain sub-period and the other sub-period. It may maintain phase continuity and / or power consistency with the PUSCH entity.
- the PUSCH entity included in the first sub-period and the second The phase continuity and / or power consistency with the PUSCH entity included in the sub-period may be maintained.
- FIG. 14 is a diagram showing an example of the first repeating type of PUSCH according to one aspect of the present embodiment.
- the period indicated by 14011 and 14014 is the downlink region.
- the period indicated by 14012 and 14015 is a flexible region.
- the period indicated by 14013 and 14016 is the uplink region.
- Settings that include at least periods 14011, 14012, 14013, 14014, 14015, and 14016 are also referred to as TDD pattern settings.
- 14001 and 14002 indicate a period during which the transmission of PUSCH is canceled.
- the start time t5 of the period 14001 is within the range of slot # n + 2, but is located behind the beginning of slot # n + 2.
- the end time t6 of the period 14001 is within the range of slot # n + 2, but is located ahead of the end of slot # n + 2.
- the start time t7 of the period 14002 is within the range of slot # n + 4, but is located behind the beginning of slot # n + 4.
- the end time t8 of the period 14002 is within the range of slot # n + 4, but is located ahead of the end of slot # n + 4.
- the period 14001 may be determined at least based on the DCI format.
- the period 14002 may be determined at least based on the DCI format.
- the DCI format used to determine period 14001 may be different or the same as the DCI format used to determine period 14002.
- the first sub-period in FIG. 14 may be a period from the beginning of the period 14012 to the time t5.
- the second sub-period in FIG. 14 may be a period from time t6 to time t7.
- the third sub-period in FIG. 14 may be a period from the time t8 to the end of the period 14013.
- the fourth sub-period in FIG. 14 may be a period including the period 14015 and the period 14016.
- the fourth sub-period in FIG. 14 may be a period including the PUSCH entity 11007, the PUSCH entity 11008, and the PUSCH entity 11009.
- the terminal device 1 may maintain phase continuity and / or power consistency for each sub-period.
- the terminal device 1 includes a period from the time t6 to the end of the PUSCH entity 11002 included in the second sub-period, a period from the beginning to the time t7 of the PUSCH entity 11003, and the PUSCH entity 11004.
- Phase continuity and / or power consistency may be maintained.
- the terminal device 1 may maintain the phase continuity and / or power consistency of the PUSCH 11007, the PUSCH entity 11008, and the PUSCH entity 11009 included in the fourth sub-period.
- the terminal device 1 does not maintain the phase continuity and / or power consistency between the PUSCH entity included in the first sub-period and the PUSCH entity included in the fourth sub-period. May be good. Further, the terminal device 1 does not maintain the phase continuity and / or power consistency between the PUSCH entity included in the second sub-period and the PUSCH entity included in the fourth sub-period. May be good. Further, the terminal device 1 does not maintain the phase continuity and / or power consistency between the PUSCH entity included in the third sub-period and the PUSCH entity included in the fourth sub-period. May be good.
- the terminal device 1 does not maintain the phase continuity and / or power consistency between the PUSCH entity included in the first sub-period and the PUSCH entity included in the second sub-period. May be good. Further, the terminal device 1 does not maintain the phase continuity and / or power consistency between the PUSCH entity included in the first sub-period and the PUSCH entity included in the third sub-period. May be good. That is, when one sub-period and another sub-period are specified by the period during which the PUSCH transmission is canceled and the period during which the PUSCH transmission is canceled is arranged in the flexible region, the terminal device 1 is said to have the same sub-period. It is not necessary to maintain the phase continuity and / or power consistency between the PUSCH entity included in one sub-period and the PUSCH entity included in the other sub-period.
- the terminal device 1 sets the terminal device 1. The phase continuity and / or power consistency between the PUSCH entity included in the certain sub-period and the PUSCH entity included in the other sub-period may be maintained.
- the PUSCH entity included in the second sub-period and the third may be maintained.
- the predetermined period 9000 may be divided into a plurality of sub-periods based on at least the setting of the area where the transmission of PUSCH is canceled.
- the terminal device 1 may maintain the phase continuity and / or power consistency of the plurality of PUSCH entities. ..
- the setting of the area where the transmission of PUSCH is canceled which is included between one sub-period and another sub-period, is included in the certain sub-period at least based on the inclusion of the downlink area based on the TDD pattern setting.
- phase continuity and / or power consistency between the entity of one or more PUSCHs and the entity of one or more PUSCHs included in the other sub-period It is not necessary to maintain the phase continuity and / or power consistency between the entity of one or more PUSCHs and the entity of one or more PUSCHs included in the other sub-period.
- the setting of the area where the transmission of PUSCH is canceled, which is included between one sub period and another sub period is included in the certain sub period at least based on the fact that the downlink area based on the TDD pattern setting is not included.
- the phase continuity and / or power consistency of one or more PUSCH entities included in the other sub-period may be maintained.
- one or more sub-periods included in the sub-period at least based on the fact that the setting of the area where the PUSCH transmission is canceled, which is included between one sub-period and the other sub-period, includes the uplink cancel area.
- the phase continuity and / or power consistency of the PUSCH entity and one or more PUSCH entities included in the other sub-period may be maintained.
- the setting of the area where the PUSCH transmission is canceled which is included between a certain sub period and another sub period, does not include at least the downlink area based on the TDD pattern setting, and the PUSCH transmission is the uplink.
- the setting of the area where the PUSCH transmission is canceled which is included between a certain sub period and another sub period, does not include at least the downlink area based on the TDD pattern setting, and the PUSCH transmission is the uplink.
- FIG. 15 is a diagram showing an example of a second repeating type of PUSCH according to one aspect of the present embodiment.
- 15000 in FIG. 15 shows a region of a certain Nominal repetition.
- the length of the nominal iteration is indicated by the time domain resource allocation field included in the uplink DCI format.
- Reference numeral 15011 shown in FIG. 15 indicates the invalid duration for the second iteration type of PUSCH.
- the invalid period 15011 is at least used to determine PUSCH's Actual repetition.
- the actual repetition of one PUSCH corresponds to the entity of one PUSCH.
- the actual repeat 15001 is set as the period from the beginning of the nominal repeat 15000 to the beginning of the invalid period 15011.
- the actual repeat 15002 is set as a period from the end of the invalid period 15011 to the end of the nominal repeat 15000.
- the invalid period may be set at least based on any of the following I1 to I5.
- the area where the transmission of the SS / PBCH block is set may be determined at least based on the bitmap information provided by the RRC parameter.
- the bitmap information may include a bitmap for SS / PBCH block candidates within a half radio frame. Each of the bits contained in the bitmap may correspond to one SS / PBCH block candidate in the half frame. For example, when a certain bit of the bitmap is set to 1, the region of the SS / PBCH block candidate corresponding to the certain bit may be set to the invalid period. Further, when a certain bit of the bitmap is set to 0, the region of the SS / PBCH block candidate corresponding to the certain bit does not have to be set in the invalid period.
- the area corresponding to the switching time from downlink reception to uplink transmission may be determined at least based on the number of OFDM symbols provided by the RRC parameter. For example, if the RRC parameter provides the value X, then the region of X OFDM symbols from the next OFDM symbol at the end of the downlink region may be set to the invalid period. Further, when the value X is provided by the RRC parameter, the region of X OFDM symbols from the next OFDM symbol at the end of the region indicating the invalid period may be set as the invalid period.
- the area indicating the invalid period may be determined at least based on the bitmap information provided by the RRC parameter.
- the bitmap information may include an OFDM symbol level bitmap. Each of the bits in the bitmap may correspond to one OFDM symbol. For example, if a bit of the bitmap is set to 1, the corresponding one OFDM symbol may be set to the invalid period in a certain period. Further, when a certain bit of the bitmap is set to 0, one corresponding OFDM symbol may not be set in the invalid period in a certain period.
- whether or not to maintain the phase continuity and / or power consistency between the actual repetition 15001 and the actual repetition 15002 may be determined at least based on the setting method of the invalid period 15011.
- the invalid period 15011 is set at least based on the downlink region included in the TDD pattern setting, it is not necessary to maintain the phase continuity and / or power consistency between the actual repetition 15001 and the actual repetition 15002.
- the phase continuity and / or power match of the actual repeat 15001 and the actual repeat 15002 may not be maintained. good.
- the invalid period 15011 is set at least based on the region in which the monitoring of the Type 0 PDCCH common search region set is set, it does not retain the phase continuity and / or power consistency of the actual repeat 15001 and the actual repeat 15002. You may.
- the invalid period 15011 is set at least based on the region corresponding to the switching time from downlink reception to uplink transmission, the phase continuity and / or power consistency of the actual repeat 15001 and the actual repeat 15002 is maintained. It does not have to be.
- the phase continuity of the actual repetition 15001 and the actual repetition 15002 and / or the power consistency may be maintained.
- the embodiment applied to the first repeat type may be applied to the second repeat type.
- At least the embodiment applied to the first iteration type may be applied.
- maintaining the phase continuity between one PUSCH entity and another PUSCH entity means that the channel through which the symbol is transmitted at the antenna port of that one PUSCH entity is that of the other PUSCH entity.
- Other symbols in the antenna port may be defined by being able to be inferred from the channel through which they are transmitted.
- the fact that the phase continuity between one PUSCH entity and another PUSCH entity is not maintained means that the channel through which the symbol is transmitted in the certain antenna port of the one PUSCH entity is the antenna of the other PUSCH entity.
- Other symbols at the port may be defined by the inability to infer from the channel through which they are transmitted.
- an antenna port is estimated from a channel through which a symbol is transmitted in an antenna port of a PUSCH entity in a sub-period from a channel in which another symbol is transmitted in the antenna port of the other PUSCH entity. It may be defined by what it can.
- maintaining the power consistency between a certain PUSCH entity and another PUSCH entity may mean that the powers of the certain PUSCH entity and the other PUSCH entity are equal. Further, the fact that the power consistency between the entity of one PUSCH and the entity of another PUSCH is maintained means that the reconstruction of the RF unit 12 is not required between the entity of the certain PUSCH and the entity of the other PUSCH. It may be.
- the first aspect of the present invention is a terminal device, the predetermined period based on at least a first resource and a receiving unit that receives a DCI format used for scheduling a plurality of PUSCH entities in a predetermined period.
- a decision unit that determines a first sub-period and a second sub-period based on at least one of the above, and one or more first PUSCHs in the first sub-period are transmitted, and one or more in the second sub-period.
- the PUSCH transmission is dropped or canceled in the first resource, and phase continuity is maintained in the one or more first PUSCHs.
- Phase continuity is maintained in the one or more second PUSCHs.
- a second aspect of the present invention is a base station apparatus, which is based on at least a transmission unit that transmits a DCI format used for scheduling a plurality of PUSCH entities in a predetermined period, and a first resource.
- a determination unit that determines a first sub-period and a second sub-period based on at least the predetermined period, and one or more first PUSCHs in the first sub-period are received, and the second sub-period is received.
- the PUSCH transmission is dropped or canceled in the first resource and is phase continuous in the first PUSCH. The nature is preserved and the phase continuity is preserved in the one or more second PUSCHs.
- the program operating on the base station device 3 and the terminal device 1 controls a CPU (Central Processing Unit) and the like so as to realize the functions of the above embodiment related to one aspect of the present invention. It may be a program (a program that makes a computer function). Then, the information handled by these devices is temporarily stored in RAM (Random Access Memory) at the time of processing, and then stored in various ROMs such as Flash ROM (Read Only Memory) and HDD (Hard Disk Drive). It is read, modified and written by the CPU as needed.
- RAM Random Access Memory
- ROMs Read Only Memory
- HDD Hard Disk Drive
- the terminal device 1 and a part of the base station device 3 in the above-described embodiment may be realized by a computer.
- the program for realizing this control function may be recorded on a computer-readable recording medium, and the program recorded on the recording medium may be read by the computer system and executed.
- the "computer system” referred to here is a computer system built in the terminal device 1 or the base station device 3, and includes hardware such as an OS and peripheral devices.
- the "computer-readable recording medium” refers to a portable medium such as a flexible disk, a magneto-optical disk, a ROM, or a CD-ROM, or a storage device such as a hard disk built in a computer system.
- a "computer-readable recording medium” is a medium that dynamically holds a program for a short period of time, such as a communication line when a program is transmitted via a network such as the Internet or a communication line such as a telephone line.
- a program that holds a program for a certain period of time such as a volatile memory inside a computer system that serves as a server or a client, may be included.
- the above-mentioned program may be a program for realizing a part of the above-mentioned functions, and may be a program for realizing the above-mentioned functions in combination with a program already recorded in the computer system.
- the base station device 3 in the above-described embodiment can also be realized as an aggregate (device group) composed of a plurality of devices.
- Each of the devices constituting the device group may include a part or all of each function or each function block of the base station device 3 according to the above-described embodiment.
- the terminal device 1 according to the above-described embodiment can also communicate with the base station device as an aggregate.
- the base station apparatus 3 in the above-described embodiment may be EUTRAN (Evolved Universal Terrestrial Radio Access Network) and / or NG-RAN (NextGen RAN, NR RAN). Further, the base station apparatus 3 in the above-described embodiment may have a part or all of the functions of the upper node with respect to eNodeB and / or gNB.
- EUTRAN Evolved Universal Terrestrial Radio Access Network
- NG-RAN NextGen RAN, NR RAN
- NG-RAN NextGen RAN, NR RAN
- a part or all of the terminal device 1 and the base station device 3 in the above-described embodiment may be realized as an LSI that is typically an integrated circuit, or may be realized as a chipset.
- Each functional block of the terminal device 1 and the base station device 3 may be individually chipped, or a part or all of them may be integrated into a chip.
- the method of making an integrated circuit is not limited to LSI, and may be realized by a dedicated circuit or a general-purpose processor.
- an integrated circuit technology that replaces LSI appears due to advances in semiconductor technology, it is also possible to use an integrated circuit based on this technology.
- the terminal device is described as an example of the communication device, but the present invention is not limited to this, and the present invention is not limited to this, and is a stationary or non-movable electronic device installed indoors or outdoors.
- terminal devices or communication devices such as AV equipment, kitchen equipment, cleaning / washing equipment, air conditioning equipment, office equipment, vending machines, and other living equipment.
- One aspect of the present invention is used, for example, in a communication system, a communication device (for example, a mobile phone device, a base station device, a wireless LAN device, or a sensor device), an integrated circuit (for example, a communication chip), a program, or the like. be able to.
- a communication device for example, a mobile phone device, a base station device, a wireless LAN device, or a sensor device
- an integrated circuit for example, a communication chip
- a program or the like.
- Terminal device 3
- Base station device 10 30 Wireless transmitter / receiver 10a, 30a Wireless transmitter 10b, 30b Wireless receiver 11, 31 Antenna section 12, 32 RF section 13, 33 Baseband section 14, 34 Upper layer processing unit 15, 35 Media access control layer processing unit 16, 36
- Radio resource control layer processing unit 91, 92, 93, 94 Search area set 300 Component carrier 301 Primary cell 302, 303 Secondary cell 3000 points 3001, 3002 Resources Grid 3003, 3004 BWP 3011, 3012, 3013, 3014 Offset 3100, 3200
- Common resource block set 9000, 9000a, 9000b Predetermined period 9001, 9002, 9003, 9004, 9005, 11000, 11001, 11002, 11003, 11004, 11005, 11006, 11007, 11008, 11009 PUSCH entity 11011, 11012, 11013, 11014, 11015, 11016, 12001, 13001, 14001, 14002 Period 15000 Nominal repeat 15001 Actual repeat 15011 Invalid period 16000 Reference point 16001 Off
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Abstract
Description
本願は、2021年1月13日に日本に出願された特願2021-3157号について優先権を主張し、その内容をここに援用する。
・PUCCH(Physical Uplink Control CHannel)
・PUSCH(Physical Uplink Shared CHannel)
・PRACH(Physical Random Access CHannel)
・UL DMRS(UpLink Demodulation Reference Signal)
・SRS(Sounding Reference Signal)
・UL PTRS(UpLink Phase Tracking Reference Signal)
・PBCH(Physical Broadcast Channel)
・PDCCH(Physical Downlink Control Channel)
・PDSCH(Physical Downlink Shared Channel)
0A)無線フレームビット
0B)ハーフ無線フレーム(ハーフシステムフレーム、ハーフフレーム)ビット
0C)SS/PBCHブロックインデックスビット
0D)サブキャリアオフセットビット
1A)DCIフォーマット特定フィールド(Identifier field for DCI formats)
1B)周波数領域リソース割り当てフィールド(Frequency domain resource assignmentfield)
1C)時間領域リソース割り当てフィールド(Time domain resource assignment field)
1D)周波数ホッピングフラグフィールド(Frequency hopping flag field)
1E)MCSフィールド(MCS field: Modulation and Coding Scheme field)
2A)DCIフォーマット特定フィールド
2B)周波数領域リソース割り当てフィールド
2C)上りリンクの時間領域リソース割り当てフィールド2D)周波数ホッピングフラグフィールド
2E)MCSフィールド
2F)CSIリクエストフィールド(CSI request field)
2G)BWPフィールド(BWP field)
2H)キャリアインディケータフィールド(Carrier indicator field)
3A)DCIフォーマット特定フィールド
3B)周波数領域リソース割り当てフィールド
3C)時間領域リソース割り当てフィールド
3D)MCSフィールド
3E)PDSCH_HARQフィードバックタイミング指示フィールド(PDSCH to HARQ feedback timing indicator field)
3F)PUCCHリソース指示フィールド(PUCCH resource indicator field)
4A)DCIフォーマット特定フィールド
4B)周波数領域リソース割り当てフィールド
4C)時間領域リソース割り当てフィールド
4E)MCSフィールド
4F)PDSCH_HARQフィードバックタイミング指示フィールド
4G)PUCCHリソース指示フィールド
4H)BWPフィールド
4I)キャリアインディケータフィールド
・同期信号(SS:Synchronization signal)
・DL DMRS(DownLink DeModulation Reference Signal)
・CSI-RS(Channel State Information-Reference Signal)
・DL PTRS(DownLink Phase Tracking Reference Signal)
5A)セルサーチ(cell search)
5B)ランダムアクセス(random access)
5C)データ通信(data communication)
6A)PDCCHの監視間隔(PDCCH monitoring periodicity)
6B)スロット内のPDCCHの監視パターン(PDCCH monitoring pattern within a slot)
6C)PDCCHの監視オフセット(PDCCH monitoring offset)
手順B1)スクランブリング
手順B2)変調処理
手順B3)レイヤマッピング
手順B4)変形プレコーディング
手順B5)プレコーディング
手順B6)VRBへのシンボルマッピング
手順B7)VRBからPRBへのマッピング
手順B8)ベースバンド信号生成
手順C1)コンテンツ推定
手順C2)PRBからVRBへのマッピング
手順C3)受信シンボル系列の生成
手順C4)プレコーディングの逆演算
手順C5)変形プレコーディングの逆演算
手順C6)レイヤデマッピング
手順C7)復調処理
手順C8)デスクランブリング
I1)TDDパターン設定に含まれる下りリンク領域
I2)SS/PBCHブロックの送信が設定される領域
I3)タイプ0PDCCH共通探索領域セットのモニタリングが設定される領域
I4)下りリンク受信から上りリンク送信の切り替え時間に対応する領域
I5)無効期間を示す領域
3 基地局装置
10、30 無線送受信部
10a、30a 無線送信部
10b、30b 無線受信部
11、31 アンテナ部
12、32 RF部
13、33 ベースバンド部
14、34 上位層処理部
15、35 媒体アクセス制御層処理部
16、36 無線リソース制御層処理部
91、92、93、94 探索領域セット
300 コンポーネントキャリア
301 プライマリセル
302、303 セカンダリセル
3000 ポイント
3001、3002 リソースグリッド
3003、3004 BWP
3011、3012、3013、3014 オフセット
3100、3200 共通リソースブロックセット
9000、9000a、9000b 所定期間
9001、9002、9003、9004、9005、11000、11001、11002、11003、11004、11005、11006、11007、11008、11009 PUSCHの実体
11011、11012、11013、11014、11015、11016、12001、13001、14001、14002 期間
15000 ノミナル繰り返し
15001 アクチュアル繰り返し
15011 無効期間
16000 参照地点
16001 オフセット
Claims (3)
- 下りリンク領域に少なくとも基づき、上位層パラメータにより提供される長さの所定期間を1または複数のサブ期間に分割する決定部と、
前記1または複数のサブ期間のうちのあるサブ期間においてPUSCHに対して繰り返し送信を行う送信部と、を備え、
前記PUSCHの繰り返し送信に対して位相連続性が保持される
端末装置。 - 下りリンク領域に少なくとも基づき、上位層パラメータにより提供される長さの所定期間を1または複数のサブ期間に分割する決定部と、
前記1または複数のサブ期間のうちのあるサブ期間におけるPUSCHに対する繰り返し送信を受信する送信部と、を備え、
前記PUSCHの繰り返し送信のそれぞれに対するDMRSを用いて、前記PUSCHの繰り返し送信に対するチャネル推定を行う
基地局装置。 - 端末装置に用いられる通信方法であって、
下りリンク領域に少なくとも基づき、上位層パラメータにより提供される長さの所定期間を1または複数のサブ期間に分割するステップと、
前記1または複数のサブ期間のうちのあるサブ期間においてPUSCHに対して繰り返し送信を行うステップと、を備え、
前記PUSCHの繰り返し送信に対して位相連続性が保持される
通信方法。
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Title |
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PANASONIC: "Discussion on PUSCH coverage enhancements", 3GPP DRAFT; R1-2008378, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20201026 - 20201113, 16 October 2020 (2020-10-16), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051939536 * |
SAMSUNG: "PUSCH coverage enhancement", 3GPP DRAFT; R1-2008181, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20201026 - 20201113, 16 October 2020 (2020-10-16), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051939507 * |
ZTE: "Remaining issues for transmission in preconfigured UL resources for NB-IoT", 3GPP DRAFT; R1-2001851, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Online Meeting ;20200420 - 20200430, 10 April 2020 (2020-04-10), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051873335 * |
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