WO2019193733A1 - ユーザ端末及び無線基地局 - Google Patents
ユーザ端末及び無線基地局 Download PDFInfo
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- WO2019193733A1 WO2019193733A1 PCT/JP2018/014644 JP2018014644W WO2019193733A1 WO 2019193733 A1 WO2019193733 A1 WO 2019193733A1 JP 2018014644 W JP2018014644 W JP 2018014644W WO 2019193733 A1 WO2019193733 A1 WO 2019193733A1
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Definitions
- the present disclosure relates to a user terminal and a radio base station in a next-generation mobile communication system.
- LTE Long Term Evolution
- Non-patent Document 1 LTE Advanced, LTE Rel. 10, 11, 12, 13
- LTE Rel. 8, 9 LTE Advanced, LTE Rel. 10, 11, 12, 13
- LTE successor systems for example, FRA (Future Radio Access), 5G (5th generation mobile communication system), 5G + (plus), NR (New Radio), NX (New radio access), FX (Future generation radio access), LTE Also referred to as Rel.
- a user terminal In an existing LTE system (for example, LTE Rel. 8-13), a user terminal (UE: User Equipment) has downlink control information (UL grant (Uplink) indicating the allocation of UL data (UL-SCH: Uplink Shared Channel)). grant)) from a radio base station (for example, eNB (eNodeB)), and after reception of the UL grant, after a predetermined timing (after 4 ms), UL data transmission based on the UL grant is performed.
- UL grant Uplink
- UL-SCH Uplink Shared Channel
- Time resource candidates are set by an upper layer.
- an object of the present disclosure is to provide a user terminal and a radio base station that can appropriately control the number of PUSCH time domain RA candidates.
- a user terminal includes a receiving unit that receives downlink control information (DCI) that instructs transmission of an uplink shared channel, and a time domain resource allocation (RA) included in the DCI. And a control unit that determines that the size of the field differs depending on the format of the DCI, and controls transmission of the uplink shared channel based on the field.
- DCI downlink control information
- RA time domain resource allocation
- the number of PUSCH time domain RA candidates can be controlled appropriately.
- FIG. 1A and 1B are diagrams illustrating an example of setting a PUSCH time domain RA list according to an embodiment.
- FIG. 2 is a diagram illustrating an example of a schematic configuration of a wireless communication system according to an embodiment.
- FIG. 3 is a diagram illustrating an example of the overall configuration of a radio base station according to an embodiment.
- FIG. 4 is a diagram illustrating an example of a functional configuration of a radio base station according to an embodiment.
- FIG. 5 is a diagram illustrating an example of an overall configuration of a user terminal according to an embodiment.
- FIG. 6 is a diagram illustrating an example of a functional configuration of a user terminal according to an embodiment.
- FIG. 7 is a diagram illustrating an example of a hardware configuration of a radio base station and a user terminal according to an embodiment.
- NR is studying communication using beam forming (BF: Beam Formfng).
- a UE and / or a base station for example, gNB (gNodeB) uses a beam (also referred to as a transmission beam or a Tx beam) used for signal transmission, or a beam (received beam, Rx beam, etc.) used for signal reception May also be used.
- gNB gNodeB
- BF is a technique for forming a beam (antenna directivity) by controlling the amplitude and / or phase of a signal transmitted / received from each element (also called precoding) using, for example, a super multi-element antenna. It is.
- MIMO Multiple Input Multiple Output
- MIMO Multiple Input Multiple Output
- large-scale MIMO massive MIMO
- Digital BF can be classified into digital BF and analog BF.
- Digital BF is a method of performing precoding signal processing (for a digital signal) on the baseband, and can form beams as many as the number of antenna ports (or RF chains) at an arbitrary timing. .
- Analog BF is a method of using a phase shifter on RF (Radio Frequency). In this case, since only the phase of the RF signal is rotated, the configuration is easy and can be realized at low cost, but a plurality of beams cannot be formed at the same timing.
- a hybrid BF configuration combining a digital BF and an analog BF can also be realized.
- the circuit configuration becomes expensive, and it is assumed that this is particularly suitable for large-scale MIMO.
- the UE communicates (transmits / receives signals) using at least one frequency band (carrier frequency) of the first frequency band (FR1: Frequency Range 1) and the second frequency band (FR2: Frequency Range 2). Measurement etc.) may be performed.
- carrier frequency carrier frequency
- FR1 Frequency Range 1
- FR2 Frequency Range 2
- FR1 may be a frequency band of 6 GHz or less (sub-6 GHz (sub-6 GHz)), and FR2 may be a frequency band higher than 24 GHz (above-24 GHz).
- FR1 may be defined as a frequency range in which at least one of 15, 30, and 60 kHz is used as a sub-carrier spacing (SCS).
- FR2 may be defined as a frequency range in which at least one of 60 and 120 kHz is used as the SCS.
- the frequency bands and definitions of FR1 and FR2 are not limited to these, and for example, FR1 may be a frequency band higher than FR2.
- FR2 may be used only for a time division duplex (TDD) band.
- FR2 is preferably operated synchronously among a plurality of base stations.
- these carriers are preferably operated synchronously.
- downlink transmission corresponds to, for example, transmission of a downlink control channel (PDCCH: Physical Downlink Control Channel), a downlink shared channel (PDSCH: Physical Downlink Shared Channel), and the like.
- the uplink reception corresponds to reception of an uplink control channel (for example, PUCCH: Physical Uplink Control Channel), an uplink shared channel (for example, PUSCH: Physical Uplink Shared Channel), for example.
- PUCCH Physical Uplink Control Channel
- PUSCH Physical Uplink Shared Channel
- the downlink control information (DCI: Downlink Control Information) notified by PDCCH is information related to time domain resource allocation (RA: Resource Allocation) of the corresponding PUSCH or PUCCH (referred to as information indicating transmission timing). May be included).
- DCI Downlink Control Information
- RA Resource Allocation
- a time domain assignment list (List of time domain allocations for timing of UL assignment to UL data) related to the timing of UL assignment of UL data may be set for UE using higher layer signaling. It is being considered.
- the list may be referred to as a PUSCH time domain RA list or the like.
- the upper layer signaling may be, for example, RRC (Radio Resource Control) signaling, MAC (Medium Access Control) signaling, broadcast information, or a combination thereof.
- RRC Radio Resource Control
- MAC Medium Access Control
- Broadcast information includes, for example, a master information block (MIB: Master Information Block), a system information block (SIB: System Information Block), minimum system information (RMSI: Remaining Minimum System Information), and other system information (OSI: Other). System Information).
- MIB Master Information Block
- SIB System Information Block
- RMSI Remaining Minimum System Information
- OSI Other system information
- the PUSCH time domain RA list may correspond to a “pusch-AllocationList” information element (IE: Information Element) of RRC signaling. It is considered that the PUSCH time domain RA list includes a maximum of 16 PUSCH time domain RA candidates (which may be referred to as sequence elements, entries, etc.).
- Each candidate corresponds to an IE (“PUSCH-TimeDomainResourceAllocation” IE) for setting a time domain relationship between PDCCH and PUSCH.
- the IE includes, for example, a parameter K2 (difference in timing between a slot that receives PDCCH and a slot that performs PUSCH transmission), a mapping type indicating a mapping configuration of a demodulation reference signal (DMRS: DeModulation Reference Signal), a PUSCH start symbol, and a symbol A value indicating the unit length (may be referred to as SLIV (Start / Length Indication Value)) may be included.
- the DCI format (DCI format 0_0 and DCI format 0_1) for scheduling of uplink data transmission includes a time domain RA field indicating an index of the PUSCH time domain RA list. Since the size of the field corresponds to a maximum of 16 entries, it is considered to be 4 bits.
- the index may be referred to as PUSCH time resource indication information.
- the DCI format 0_0 may be replaced with words such as DCI format used for scheduling of the fallback DCI, fallback UL grant, and PUSCH of one cell.
- the fallback DCI (fallback DCI) is, for example, DCI transmitted in at least one of a common search space (C-SS) and a UE-specific search space (UE-SS). DCI whose configuration cannot be set by UE-specific upper layer signaling may be used.
- UE-SS may mean a search space set for each UE, and C-SS may mean a search space set in common for a plurality of UEs.
- the resource to which the search space is mapped is at least one of a cell-radio network temporary identifier (C-RNTI: Cell-Radio Network Temporary Identifier) and a user terminal identifier (UE-ID: UE Identifier).
- C-SS may mean a search space in which resources that are not based on either C-RNTI or UE-ID are used.
- UE-SS means a search space set based on UE-specific upper layer signaling
- C-SS is a search space set based on UE common upper layer signaling such as broadcast information. May be.
- the DCI format 0_1 may be replaced with words such as a non-fallback DCI, a non-fallback UL grant, and a DCI format having a larger payload (number of bits) than the DCI format 0_0.
- Non-fallback DCI is, for example, DCI transmitted in UE-SS, and its configuration (contents, payload, etc.) can be set by UE-specific higher layer signaling (for example, RRC signaling). It may be DCI.
- the configuration (contents, payload, etc.) of the fallback DCI may also be set by higher layer signaling common to the UE (for example, broadcast information, system information, etc.).
- the NR can adjust PUSCH resources using the PUSCH time domain RA list. Whether the maximum of 16 RA candidates is sufficient has not yet been examined.
- the present inventors examined as follows.
- the beam pattern is preferably determined by gNB based on the traffic difference between the beams. Therefore, in order to realize a temporally flexible DL / UL beam pattern, it is preferable to increase the number of PUSCH time domain RA candidates.
- DL / UL allocation in the beam pattern is preferably determined by gNB. Therefore, in order to realize flexible DL / UL allocation for beams, it is preferable to increase the number of PUSCH time domain RA candidates.
- the present inventors have conceived a method of appropriately controlling (setting) the number of PUSCH time domain RA candidates.
- the number of RA candidates included in the PUSCH time domain RA list may exceed 16.
- the number of bits of the time domain RA field included in DCI may exceed 4 bits.
- the number of bits in the time domain RA field of the DCI format 0_1 may be 6 bits, and the UE determines up to 64 entries included in the PUSCH time domain RA list based on the value of the time domain RA field. One of them may be determined.
- N the number of bits in the time domain RA field may be read as N (the arbitrary number ⁇ 2N is satisfied).
- the number of bits of the time domain RA field of DCI format 0_0 may be different from the number of bits of the time domain RA field of DCI format 0_1.
- the number of bits of the time domain RA field of DCI format 0_0 may be equal to or less than the number of bits of the time domain RA field of DCI format 0_1.
- the number of bits in the time domain RA field of the DCI format 0_0 may be fixed at a predetermined value (for example, 4) (may be specified by the specification) or specified as a maximum of 4 bits. Also good.
- the time domain RA field (Msg3 PUSCH time resource allocation field) of the UL transmission instruction (UL grant) included in the random access response (RAR: Random Access Response) used during the random access procedure is DCI. It may be the same as the number of bits in the time domain RA field of format 0_0, or may be fixed at a predetermined value (for example, 4) (may be defined in the specification).
- the UL grant included in the RAR is information for scheduling the PUSCH for the message 3 in the random access procedure, and may be referred to as an RAR UL grant, an RAR grant field, or the like.
- the RAR may be notified using at least one of MAC CE and MAC PDU.
- the UE transmits message 3 (an upper layer control message) using the UL resource specified by the RAR UL grant.
- the UE may refer to different PUSCH time domain RA lists for different DCI formats, or may refer to the same PUSCH time domain RA list.
- the UE may refer to different PUSCH time domain RA lists based on predetermined conditions even in the same DCI format.
- the UE may use at least a part of the same PUSCH time domain RA list that is referred to for the DCI format 0_1.
- the UE may select from the specific 16 entries of the maximum 64 entries included in the PUSCH time domain RA list that refers to the DCI format 0_1.
- the specific 16 entries may be the first 16 entries included in the PUSCH time domain RA list that refers to the DCI format 0_1.
- DCI format 0_0 received by C-SS and scrambled by CRC (Cyclic Redundancy Check) by Cell-Radio Network Temporary Identifier (C-RNTI) refer to DCI format 0_1
- CRC Cyclic Redundancy Check
- C-RNTI Cell-Radio Network Temporary Identifier
- the UE may be in DCI format 0_0 (DCI format 0_0 used during the random access procedure) received in the C-SS and CRC scrambled by a temporary C-RNTI (TC-RNTI: Temporary C-RNTI) ) May use a different PUSCH time domain RA list than that referenced for DCI format 0_1.
- DCI format 0_0 DCI format 0_0 used during the random access procedure
- C-RNTI Temporary C-RNTI
- the UE receives a list different from the PUSCH time domain RA list that is referenced for DCI format 0_1 based on the value of the time domain RA field of DCI format 0_0 received at C-SS and CRC scrambled by TC-RNTI.
- One of the maximum 16 entries included in the ID may be determined.
- the UE may use a PUSCH time domain RA list different from that for the DCI format 0_1 for the RAR UL grant.
- the UE always has a 16-entry PUSCH time domain RA list for DCI format 0_0, regardless of the search space in which DCI format 0_0 is received (C-SS or UE-SS). You may refer to it.
- 1A and 1B are diagrams illustrating an example of setting a PUSCH time domain RA list according to an embodiment.
- the mapping type is omitted.
- the values of K2 and SLIV are not limited to the illustrated values.
- the pushch-AllocationList included in the IE (“PUSCH-ConfigCommon” IE) used to set cell-specific PUSCH parameters is defined as "SEQUENCE (SIZE (1..16)) OF PUSCH-TimeDomainResourceAllocation” Good. Note that the notation related to IE in this disclosure is ASN. 1 (Abstract Syntax Notation One).
- FIG. 1A corresponds to the PUSCH time domain RA list set by the pushch-AllocationList included in the “PUSCH-ConfigCommon” IE.
- the number of candidates for the RA list is 16.
- the pushch-AllocationList included in the IE (“PUSCH-Config” IE) used to set the UE-specific PUSCH parameters is "SEQUENCE (SIZE (1..maxNrofUL-Allocations)) OF OF PUSCH-TimeDomainResourceAllocation" May be defined.
- SIZE (1..maxNrofUL-Allocations)
- OF OF PUSCH-TimeDomainResourceAllocation OF OF PUSCH-TimeDomainResourceAllocation
- the UE may assume that at least a part of the push-AllocationList included in the “PUSCH-ConfigCommon” IE is not overwritten by the push-AllocationList included in the “PUSCH-Config” IE.
- FIG. 1B corresponds to the PUSCH time domain RA list set by the pushch-AllocationList included in the “PUSCH-Config” IE.
- the number of candidates for the RA list is 64.
- the UE When the UE detects the DCI format 0_1, the UE determines that the number of bits of the time domain RA field of the DCI is 6 bits, and determines the PUSCH time resource based on the list of FIG. 1B and the value of the time domain RA field.
- the data may be determined and transmitted using the PUSCH of the time resource.
- the number of bits in the time domain RA field of the DCI is 4 bits.
- the PUSCH time resource may be determined based on the first 16 entries in the list of FIG. 1B and the value of the time domain RA field, and data may be transmitted using the PUSCH of the time resource.
- the UE When the UE detects DCI format 0_0 that is CRC scrambled by TC-RNTI in C-SS, or receives RAR UL grant, the number of bits in the time domain RA field of the DCI (or UL grant) is 4 bits. It may be determined that the PUSCH time resource is determined based on the list of FIG. 1A and the value of the time domain RA field, and data may be transmitted using the PUSCH of the time resource.
- a list of time domain assignments to be used depending on the type of DCI format, whether the UE is a PUSCH specific to the UE (or whether scheduling DCI is transmitted in the UE-SS), and the like. Can be adaptively changed.
- the PUSCH of the present disclosure may include UCI on PUSCH without uplink data (UCI on PUSCH without UL-SCH).
- data may be read as “uplink control information (UCI)”.
- wireless communication system Wireless communication system
- communication is performed using any one or a combination of the wireless communication methods according to the above-described embodiments of the present disclosure.
- FIG. 2 is a diagram illustrating an example of a schematic configuration of a wireless communication system according to an embodiment.
- the wireless communication system 1 at least one of carrier aggregation (CA) and dual connectivity (DC) in which a plurality of fundamental frequency blocks (component carriers) each having a system bandwidth (for example, 20 MHz) of the LTE system as one unit is integrated. Can be applied.
- CA carrier aggregation
- DC dual connectivity
- the wireless communication system 1 includes LTE (Long Term Evolution), LTE-A (LTE-Advanced), LTE-B (LTE-Beyond), SUPER 3G, IMT-Advanced, 4G (4th generation mobile communication system), 5G. (5th generation mobile communication system), NR (New Radio), FRA (Future Radio Access), New-RAT (Radio Access Technology), etc., or a system that realizes these.
- LTE Long Term Evolution
- LTE-A LTE-Advanced
- LTE-B LTE-Beyond
- SUPER 3G IMT-Advanced
- 4G 4th generation mobile communication system
- 5G. 5th generation mobile communication system
- NR New Radio
- FRA Full Radio Access
- New-RAT Radio Access Technology
- the radio communication system 1 includes a radio base station 11 that forms a macro cell C1 having a relatively wide coverage, and a radio base station 12 (12a-12c) that is arranged in the macro cell C1 and forms a small cell C2 that is narrower than the macro cell C1. It is equipped with. Moreover, the user terminal 20 is arrange
- the user terminal 20 can be connected to both the radio base station 11 and the radio base station 12. It is assumed that the user terminal 20 uses the macro cell C1 and the small cell C2 at the same time using CA or DC. Moreover, the user terminal 20 may apply CA or DC using a plurality of cells (CC).
- CC a plurality of cells
- Communication between the user terminal 20 and the radio base station 11 can be performed using a carrier having a relatively low frequency band (for example, 2 GHz) and a narrow bandwidth (also referred to as an existing carrier or a legacy carrier).
- a carrier having a relatively high frequency band for example, 3.5 GHz, 5 GHz, etc.
- the same carrier may be used.
- the configuration of the frequency band used by each radio base station is not limited to this.
- the user terminal 20 can perform communication in each cell using at least one of time division duplex (TDD) and frequency division duplex (FDD).
- TDD time division duplex
- FDD frequency division duplex
- a single neurology may be applied, or a plurality of different neurology may be applied.
- the wireless base station 11 and the wireless base station 12 are connected by wire (for example, optical fiber compliant with CPRI (Common Public Radio Interface), X2 interface, etc.) or wirelessly. May be.
- the radio base station 11 and each radio base station 12 are connected to the higher station apparatus 30 and connected to the core network 40 via the higher station apparatus 30.
- the upper station device 30 includes, for example, an access gateway device, a radio network controller (RNC), a mobility management entity (MME), and the like, but is not limited thereto.
- RNC radio network controller
- MME mobility management entity
- Each radio base station 12 may be connected to the higher station apparatus 30 via the radio base station 11.
- the radio base station 11 is a radio base station having a relatively wide coverage, and may be called a macro base station, an aggregation node, an eNB (eNodeB), a transmission / reception point, or the like.
- the radio base station 12 is a radio base station having local coverage, and includes a small base station, a micro base station, a pico base station, a femto base station, a HeNB (Home eNodeB), an RRH (Remote Radio Head), and transmission / reception. It may be called a point.
- the radio base stations 11 and 12 are not distinguished, they are collectively referred to as a radio base station 10.
- Each user terminal 20 is a terminal that supports various communication schemes such as LTE and LTE-A, and may include not only a mobile communication terminal (mobile station) but also a fixed communication terminal (fixed station).
- orthogonal frequency division multiple access (OFDMA) is applied to the downlink, and single carrier-frequency division multiple access (SC-FDMA) is used for the uplink.
- SC-FDMA single carrier-frequency division multiple access
- Frequency Division Multiple Access and / or OFDMA are applied.
- OFDMA is a multi-carrier transmission scheme that performs communication by dividing a frequency band into a plurality of narrow frequency bands (subcarriers) and mapping data to each subcarrier.
- SC-FDMA is a single carrier transmission in which the system bandwidth is divided into bands each composed of one or continuous resource blocks for each terminal, and a plurality of terminals use different bands to reduce interference between terminals. It is a method.
- the uplink and downlink radio access schemes are not limited to these combinations, and other radio access schemes may be used.
- a downlink shared channel (PDSCH: Physical Downlink Shared Channel), a broadcast channel (PBCH: Physical Broadcast Channel), a downlink control channel, and the like that are shared by the user terminals 20 are used as downlink channels.
- PDSCH Physical Downlink Shared Channel
- PBCH Physical Broadcast Channel
- SIB System Information Block
- MIB Master Information Block
- Downlink control channels include PDCCH (Physical Downlink Control Channel), EPDCCH (Enhanced Physical Downlink Control Channel), PCFICH (Physical Control Format Indicator Channel), PHICH (Physical Hybrid-ARQ Indicator Channel), and the like.
- Downlink control information (DCI: Downlink Control Information) including at least one of scheduling information of PDSCH and PUSCH is transmitted by PDCCH.
- DCI for scheduling DL data reception may be referred to as DL assignment
- DCI for scheduling UL data transmission may be referred to as UL grant.
- the number of OFDM symbols used for PDCCH may be transmitted by PCFICH.
- Delivery confirmation information for example, retransmission control information, HARQ-ACK, ACK / NACK, etc.
- HARQ Hybrid Automatic Repeat reQuest
- EPDCCH is frequency-division multiplexed with PDSCH (downlink shared data channel), and is used for transmission of DCI and the like in the same manner as PDCCH.
- an uplink shared channel (PUSCH) shared by each user terminal 20
- an uplink control channel (PUCCH: Physical Uplink Control Channel)
- a random access channel (PRACH: Physical Random Access Channel)
- User data, higher layer control information, etc. are transmitted by PUSCH.
- downlink radio quality information CQI: Channel Quality Indicator
- delivery confirmation information SR
- scheduling request etc.
- a random access preamble for establishing connection with the cell is transmitted by the PRACH.
- a cell-specific reference signal CRS
- CSI-RS channel state information reference signal
- DMRS demodulation reference signal
- PRS Positioning Reference Signal
- a measurement reference signal SRS: Sounding Reference Signal
- a demodulation reference signal DMRS
- the DMRS may be referred to as a user terminal specific reference signal (UE-specific Reference Signal). Further, the transmitted reference signal is not limited to these.
- FIG. 3 is a diagram illustrating an example of the overall configuration of a radio base station according to an embodiment.
- the radio base station 10 includes a plurality of transmission / reception antennas 101, an amplifier unit 102, a transmission / reception unit 103, a baseband signal processing unit 104, a call processing unit 105, and a transmission path interface 106.
- the transmission / reception antenna 101, the amplifier unit 102, and the transmission / reception unit 103 may each be configured to include one or more.
- User data transmitted from the radio base station 10 to the user terminal 20 via the downlink is input from the higher station apparatus 30 to the baseband signal processing unit 104 via the transmission path interface 106.
- PDCP Packet Data Convergence Protocol
- RLC Radio Link Control
- MAC Medium Access
- Retransmission control for example, HARQ transmission processing
- scheduling transmission format selection, channel coding, Inverse Fast Fourier Transform (IFFT) processing, precoding processing, and other transmission processing
- IFFT Inverse Fast Fourier Transform
- precoding processing precoding processing, and other transmission processing
- the downlink control signal is also subjected to transmission processing such as channel coding and inverse fast Fourier transform, and is transferred to the transmission / reception unit 103.
- the transmission / reception unit 103 converts the baseband signal output by precoding for each antenna from the baseband signal processing unit 104 to a radio frequency band and transmits the converted signal.
- the radio frequency signal frequency-converted by the transmission / reception unit 103 is amplified by the amplifier unit 102 and transmitted from the transmission / reception antenna 101.
- the transmission / reception unit 103 can be configured by a transmitter / receiver, a transmission / reception circuit, or a transmission / reception device described based on common recognition in the technical field according to the present disclosure.
- the transmission / reception part 103 may be comprised as an integral transmission / reception part, and may be comprised from a transmission part and a receiving part.
- the radio frequency signal received by the transmission / reception antenna 101 is amplified by the amplifier unit 102.
- the transmission / reception unit 103 receives the uplink signal amplified by the amplifier unit 102.
- the transmission / reception unit 103 converts the frequency of the received signal into a baseband signal and outputs it to the baseband signal processing unit 104.
- the baseband signal processing unit 104 performs fast Fourier transform (FFT) processing, inverse discrete Fourier transform (IDFT: Inverse Discrete Fourier Transform) processing, and error correction on user data included in the input upstream signal.
- FFT fast Fourier transform
- IDFT inverse discrete Fourier transform
- Decoding, MAC retransmission control reception processing, RLC layer and PDCP layer reception processing are performed and transferred to the upper station apparatus 30 via the transmission path interface 106.
- the call processor 105 performs communication channel call processing (setting, release, etc.), status management of the radio base station 10, radio resource management, and the like.
- the transmission path interface 106 transmits and receives signals to and from the higher station apparatus 30 via a predetermined interface.
- the transmission path interface 106 transmits / receives signals (backhaul signaling) to / from other radio base stations 10 via an interface between base stations (for example, an optical fiber compliant with CPRI (Common Public Radio Interface), X2 interface). May be.
- CPRI Common Public Radio Interface
- X2 interface May be.
- FIG. 4 is a diagram illustrating an example of a functional configuration of a radio base station according to an embodiment of the present disclosure.
- the functional block of the characteristic part in this embodiment is mainly shown, and it may be assumed that the wireless base station 10 also has other functional blocks necessary for wireless communication.
- the baseband signal processing unit 104 includes at least a control unit (scheduler) 301, a transmission signal generation unit 302, a mapping unit 303, a reception signal processing unit 304, and a measurement unit 305. These configurations may be included in the radio base station 10, and a part or all of the configurations may not be included in the baseband signal processing unit 104.
- the control unit (scheduler) 301 controls the entire radio base station 10.
- the control unit 301 can be configured by a controller, a control circuit, or a control device described based on common recognition in the technical field according to the present disclosure.
- the control unit 301 controls, for example, signal generation in the transmission signal generation unit 302, signal allocation in the mapping unit 303, and the like.
- the control unit 301 also controls signal reception processing in the reception signal processing unit 304, signal measurement in the measurement unit 305, and the like.
- the control unit 301 schedules system information, downlink data signals (for example, signals transmitted using a downlink shared channel), and downlink control signals (for example, signals transmitted using a downlink control channel) (for example, resource allocation). ) To control. In addition, the control unit 301 controls generation of a downlink control signal, a downlink data signal, and the like based on a result of determining whether or not retransmission control is necessary for the uplink data signal.
- the control unit 301 controls scheduling of synchronization signals (for example, PSS (Primary Synchronization Signal) / SSS (Secondary Synchronization Signal)), downlink reference signals (for example, CRS, CSI-RS, DMRS) and the like.
- synchronization signals for example, PSS (Primary Synchronization Signal) / SSS (Secondary Synchronization Signal)
- downlink reference signals for example, CRS, CSI-RS, DMRS
- the control unit 301 includes an uplink data signal (for example, a signal transmitted using an uplink shared channel), an uplink control signal (for example, a signal transmitted using an uplink control channel), a random access preamble, an uplink reference signal, and the like. Control scheduling.
- the transmission signal generation unit 302 generates a downlink signal (downlink control signal, downlink data signal, downlink reference signal, etc.) based on an instruction from the control unit 301, and outputs it to the mapping unit 303.
- the transmission signal generation unit 302 can be configured by a signal generator, a signal generation circuit, or a signal generation device described based on common recognition in the technical field according to the present disclosure.
- the transmission signal generation unit 302 generates, for example, at least one of a DL assignment for notifying downlink data allocation information and a UL grant for notifying uplink data allocation information based on an instruction from the control unit 301.
- the DL assignment and UL grant are both DCI and follow the DCI format.
- the downlink data signal is subjected to coding processing and modulation processing according to a coding rate, a modulation scheme, and the like determined based on channel state information (CSI: Channel State Information) from each user terminal 20.
- CSI Channel State Information
- the mapping unit 303 maps the downlink signal generated by the transmission signal generation unit 302 to a predetermined radio resource based on an instruction from the control unit 301, and outputs it to the transmission / reception unit 103.
- the mapping unit 303 can be configured by a mapper, a mapping circuit, or a mapping device described based on common recognition in the technical field according to the present disclosure.
- the reception signal processing unit 304 performs reception processing (for example, demapping, demodulation, decoding, etc.) on the reception signal input from the transmission / reception unit 103.
- the received signal is, for example, an uplink signal (uplink control signal, uplink data signal, uplink reference signal, etc.) transmitted from the user terminal 20.
- the reception signal processing unit 304 can be configured by a signal processor, a signal processing circuit, or a signal processing device described based on common recognition in the technical field according to the present disclosure.
- the reception signal processing unit 304 outputs the information decoded by the reception processing to the control unit 301. For example, when receiving PUCCH including HARQ-ACK, HARQ-ACK is output to control section 301.
- the reception signal processing unit 304 outputs at least one of the reception signal and the signal after reception processing to the measurement unit 305.
- the measurement unit 305 performs measurement on the received signal.
- the measurement unit 305 can be configured from a measurement device, a measurement circuit, or a measurement device described based on common recognition in the technical field according to the present disclosure.
- the measurement unit 305 may perform RRM (Radio Resource Management) measurement, CSI (Channel State Information) measurement, and the like based on the received signal.
- the measurement unit 305 includes received power (for example, RSRP (Reference Signal Received Power)), received quality (for example, RSRQ (Reference Signal Received Quality), SINR (Signal to Interference plus Noise Ratio), SNR (Signal to Noise Ratio)).
- Signal strength for example, RSSI (Received Signal Strength Indicator)
- propagation path information for example, CSI
- the measurement result may be output to the control unit 301.
- the transmission / reception unit 103 may further include an analog beam forming unit that performs analog beam forming.
- the analog beam forming unit includes an analog beam forming circuit (for example, a phase shifter, a phase shift circuit) or an analog beam forming apparatus (for example, a phase shifter) described based on common recognition in the technical field according to the present disclosure. can do.
- the transmission / reception antenna 101 can be configured by an array antenna, for example.
- the transmission / reception unit 103 is configured to be able to apply single BF and multi-BF.
- the transmission / reception unit 103 may transmit a signal using a transmission beam or may receive a signal using a reception beam.
- the transmission / reception unit 103 may transmit and / or receive a signal using a predetermined beam determined by the control unit 301.
- the control unit 301 uses the digital BF (for example, precoding) by the baseband signal processing unit 104 and / or the analog BF (for example, phase rotation) by the transmission / reception unit 103 to form a transmission beam and / or a reception beam. May be performed.
- digital BF for example, precoding
- analog BF for example, phase rotation
- the transmission / reception unit 103 may transmit downlink control information (DCI) instructing transmission of the uplink shared channel (PUSCH).
- DCI downlink control information
- the transmission / reception unit 103 may receive the PUSCH transmitted based on the DCI.
- control unit 301 may perform control to vary the size of a time domain resource allocation (RA) field included in the DCI according to the format of the DCI.
- RA time domain resource allocation
- FIG. 5 is a diagram illustrating an example of an overall configuration of a user terminal according to an embodiment.
- the user terminal 20 includes a plurality of transmission / reception antennas 201, an amplifier unit 202, a transmission / reception unit 203, a baseband signal processing unit 204, and an application unit 205.
- the transmission / reception antenna 201, the amplifier unit 202, and the transmission / reception unit 203 may be configured to include one or more.
- the radio frequency signal received by the transmission / reception antenna 201 is amplified by the amplifier unit 202.
- the transmission / reception unit 203 receives the downlink signal amplified by the amplifier unit 202.
- the transmission / reception unit 203 converts the frequency of the received signal into a baseband signal and outputs it to the baseband signal processing unit 204.
- the transmission / reception unit 203 can be configured by a transmitter / receiver, a transmission / reception circuit, or a transmission / reception device described based on common recognition in the technical field according to the present disclosure.
- the transmission / reception unit 203 may be configured as an integral transmission / reception unit, or may be configured from a transmission unit and a reception unit.
- the baseband signal processing unit 204 performs FFT processing, error correction decoding, retransmission control reception processing, and the like on the input baseband signal.
- the downlink user data is transferred to the application unit 205.
- the application unit 205 performs processing related to layers higher than the physical layer and the MAC layer. Also, broadcast information of downlink data may be transferred to the application unit 205.
- uplink user data is input from the application unit 205 to the baseband signal processing unit 204.
- the baseband signal processing unit 204 performs transmission processing for retransmission control (for example, HARQ transmission processing), channel coding, precoding, discrete Fourier transform (DFT) processing, IFFT processing, etc. 203.
- the transmission / reception unit 203 converts the baseband signal output from the baseband signal processing unit 204 into a radio frequency band and transmits it.
- the radio frequency signal frequency-converted by the transmission / reception unit 203 is amplified by the amplifier unit 202 and transmitted from the transmission / reception antenna 201.
- FIG. 6 is a diagram illustrating an example of a functional configuration of a user terminal according to an embodiment.
- the functional block of the characteristic part in this embodiment is mainly shown, and it may be assumed that the user terminal 20 also has other functional blocks necessary for wireless communication.
- the baseband signal processing unit 204 included in the user terminal 20 includes at least a control unit 401, a transmission signal generation unit 402, a mapping unit 403, a reception signal processing unit 404, and a measurement unit 405. Note that these configurations may be included in the user terminal 20, and some or all of the configurations may not be included in the baseband signal processing unit 204.
- the control unit 401 controls the entire user terminal 20.
- the control unit 401 can be configured by a controller, a control circuit, or a control device described based on common recognition in the technical field according to the present disclosure.
- the control unit 401 controls, for example, signal generation in the transmission signal generation unit 402, signal allocation in the mapping unit 403, and the like.
- the control unit 401 also controls signal reception processing in the reception signal processing unit 404, signal measurement in the measurement unit 405, and the like.
- the control unit 401 acquires the downlink control signal, the downlink data signal, and the like transmitted from the radio base station 10 from the received signal processing unit 404. As a result of determining whether or not retransmission control is required for the downlink data signal, the control unit 401 controls generation of an uplink control signal, an uplink data signal, and the like based on the downlink control signal and the like.
- control unit 401 When the control unit 401 acquires various types of information notified from the radio base station 10 from the reception signal processing unit 404, the control unit 401 may update parameters used for control based on the information.
- the transmission signal generation unit 402 generates an uplink signal (uplink control signal, uplink data signal, uplink reference signal, etc.) based on an instruction from the control unit 401 and outputs the uplink signal to the mapping unit 403.
- the transmission signal generation unit 402 can be configured by a signal generator, a signal generation circuit, or a signal generation device described based on common recognition in the technical field according to the present disclosure.
- the transmission signal generation unit 402 generates an uplink control signal related to delivery confirmation information, channel state information (CSI), and the like based on an instruction from the control unit 401, for example. In addition, the transmission signal generation unit 402 generates an uplink data signal based on an instruction from the control unit 401. For example, the transmission signal generation unit 402 is instructed by the control unit 401 to generate an uplink data signal when the UL grant is included in the downlink control signal notified from the radio base station 10.
- CSI channel state information
- the mapping unit 403 maps the uplink signal generated by the transmission signal generation unit 402 to a radio resource based on an instruction from the control unit 401, and outputs the radio signal to the transmission / reception unit 203.
- the mapping unit 403 can be configured by a mapper, a mapping circuit, or a mapping device described based on common recognition in the technical field according to the present disclosure.
- the reception signal processing unit 404 performs reception processing (for example, demapping, demodulation, decoding, etc.) on the reception signal input from the transmission / reception unit 203.
- the received signal is, for example, a downlink signal (downlink control signal, downlink data signal, downlink reference signal, etc.) transmitted from the radio base station 10.
- the reception signal processing unit 404 can be configured by a signal processor, a signal processing circuit, or a signal processing device described based on common recognition in the technical field according to the present disclosure. Further, the reception signal processing unit 404 can constitute a reception unit according to the present disclosure.
- the reception signal processing unit 404 outputs the information decoded by the reception processing to the control unit 401.
- the reception signal processing unit 404 outputs, for example, broadcast information, system information, RRC signaling, DCI, and the like to the control unit 401.
- the reception signal processing unit 404 outputs at least one of the reception signal and the signal after reception processing to the measurement unit 405.
- the measurement unit 405 performs measurement on the received signal.
- the measurement unit 405 can be configured from a measurement device, a measurement circuit, or a measurement device described based on common recognition in the technical field according to the present disclosure.
- the measurement unit 405 may perform RRM measurement, CSI measurement, and the like based on the received signal.
- the measurement unit 405 may measure reception power (for example, RSRP), reception quality (for example, RSRQ, SINR, SNR), signal strength (for example, RSSI), propagation path information (for example, CSI), and the like.
- the measurement result may be output to the control unit 401.
- the transmission / reception unit 203 may further include an analog beam forming unit that performs analog beam forming.
- the analog beam forming unit includes an analog beam forming circuit (for example, a phase shifter, a phase shift circuit) or an analog beam forming apparatus (for example, a phase shifter) described based on common recognition in the technical field according to the present disclosure. can do.
- the transmission / reception antenna 201 can be configured by, for example, an array antenna.
- the transmission / reception unit 203 is configured to be able to apply single BF and multi-BF.
- the transmission / reception unit 203 may transmit a signal using a transmission beam or may receive a signal using a reception beam.
- the transmission / reception unit 203 may transmit and / or receive a signal using a predetermined beam determined by the control unit 401.
- the control unit 401 uses the digital BF (for example, precoding) by the baseband signal processing unit 204 and / or the analog BF (for example, phase rotation) by the transmission / reception unit 203 to form a transmission beam and / or a reception beam. May be performed.
- digital BF for example, precoding
- analog BF for example, phase rotation
- the transmission / reception unit 203 may receive downlink control information (DCI) instructing transmission of the uplink shared channel (PUSCH).
- DCI downlink control information
- the transmission / reception unit 203 may transmit the PUSCH based on the DCI.
- control unit 401 determines that the size of the time domain resource allocation (RA) field included in the downlink control information (DCI) acquired from the received signal processing unit 404 is different depending on the format of the DCI. Based on the field, transmission of the PUSCH may be controlled (for example, transmission time, transmission timing, etc. are controlled).
- RA time domain resource allocation
- the control unit 401 may assume that the size of the field is a maximum of 6 bits when the DCI format is DCI format 0_1.
- the control unit 401 may assume that the size of the field is 4 bits when the DCI format is DCI format 0_0.
- the control unit 401 scrambles a CRC (Cyclic Redundancy Check) by the C-RNTI (Cell-Radio Network Temporary Identifier) when the DCI is received in the user terminal specific search space or when the DCI is received in the common search space. If it is, the transmission of the uplink shared channel may be controlled based on a list of time domain RA candidates related to the DCI format 0_1.
- CRC Cyclic Redundancy Check
- C-RNTI Cell-Radio Network Temporary Identifier
- the control unit 401 When the DCI is received in the common search space and is CRC scrambled by TC-RNTI (Temporary C-RNTI), or when the DCI is included in the random access response, the control unit 401 performs time related to the DCI format 0_1.
- the transmission of the uplink shared channel may be controlled based on a list of time domain RA candidates different from the list of domain RA candidates.
- each functional block is realized using one device physically or logically coupled, or two or more devices physically or logically separated may be directly or indirectly (for example, (Using wired, wireless, etc.) and may be implemented using these multiple devices.
- a wireless base station, a user terminal, and the like may function as a computer that performs processing of the wireless communication method of the present disclosure.
- FIG. 7 is a diagram illustrating an example of a hardware configuration of a radio base station and a user terminal according to an embodiment.
- the wireless base station 10 and the user terminal 20 described above may be physically configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like. Good.
- the term “apparatus” can be read as a circuit, a device, a unit, or the like.
- the hardware configurations of the radio base station 10 and the user terminal 20 may be configured to include one or a plurality of each device illustrated in the figure, or may be configured not to include some devices.
- processor 1001 may be implemented by one or more chips.
- Each function in the radio base station 10 and the user terminal 20 is calculated by causing the processor 1001 to perform calculations by reading predetermined software (programs) on hardware such as the processor 1001 and the memory 1002, for example, via the communication device 1004. This is realized by controlling communication or controlling at least one of reading and writing of data in the memory 1002 and the storage 1003.
- the processor 1001 controls the entire computer by operating an operating system, for example.
- the processor 1001 may be configured by a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic device, a register, and the like.
- CPU central processing unit
- the baseband signal processing unit 104 (204) and the call processing unit 105 described above may be realized by the processor 1001.
- the processor 1001 reads a program (program code), a software module, data, and the like from at least one of the storage 1003 and the communication device 1004 to the memory 1002, and executes various processes according to these.
- a program program code
- the control unit 401 of the user terminal 20 may be realized by a control program stored in the memory 1002 and operating in the processor 1001, and may be realized similarly for other functional blocks.
- the memory 1002 is a computer-readable recording medium such as a ROM (Read Only Memory), an EPROM (Erasable Programmable ROM), an EEPROM (Electrically EPROM), a RAM (Random Access Memory), or any other suitable storage medium. It may be configured by one.
- the memory 1002 may be called a register, a cache, a main memory (main storage device), or the like.
- the memory 1002 can store a program (program code), a software module, and the like that can be executed to perform the wireless communication method according to an embodiment of the present disclosure.
- the storage 1003 is a computer-readable recording medium such as a flexible disk, a floppy (registered trademark) disk, a magneto-optical disk (for example, a compact disk (CD-ROM (Compact Disc ROM)), a digital versatile disk, Blu-ray® disk), removable disk, hard disk drive, smart card, flash memory device (eg, card, stick, key drive), magnetic stripe, database, server, or other suitable storage medium It may be constituted by.
- the storage 1003 may be referred to as an auxiliary storage device.
- the communication device 1004 is hardware (transmission / reception device) for performing communication between computers via at least one of a wired network and a wireless network, and is also referred to as a network device, a network controller, a network card, a communication module, or the like.
- the communication device 1004 includes, for example, a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc. in order to realize at least one of frequency division duplex (FDD) and time division duplex (TDD). It may be constituted by.
- FDD frequency division duplex
- TDD time division duplex
- the transmission / reception antenna 101 (201), the amplifier unit 102 (202), the transmission / reception unit 103 (203), the transmission path interface 106, and the like described above may be realized by the communication device 1004.
- the input device 1005 is an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.) that accepts an input from the outside.
- the output device 1006 is an output device (for example, a display, a speaker, an LED (Light Emitting Diode) lamp, etc.) that performs output to the outside.
- the input device 1005 and the output device 1006 may have an integrated configuration (for example, a touch panel).
- the devices such as the processor 1001 and the memory 1002 are connected by a bus 1007 for communicating information.
- the bus 1007 may be configured using a single bus, or may be configured using a different bus for each device.
- the radio base station 10 and the user terminal 20 include a microprocessor, a digital signal processor (DSP), an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), an FPGA (Field Programmable Gate Array), and the like. It may be configured including hardware, and a part or all of each functional block may be realized using the hardware. For example, the processor 1001 may be implemented using at least one of these hardware.
- DSP digital signal processor
- ASIC Application Specific Integrated Circuit
- PLD Programmable Logic Device
- FPGA Field Programmable Gate Array
- the terms described in the present disclosure and the terms necessary for understanding the present disclosure may be replaced with terms having the same or similar meaning.
- the signal may be a message.
- the reference signal may be abbreviated as RS (Reference Signal), and may be referred to as a pilot, a pilot signal, or the like depending on an applied standard.
- a component carrier CC: Component Carrier
- CC Component Carrier
- the radio frame may be configured by one or a plurality of periods (frames) in the time domain.
- Each of the one or more periods (frames) constituting the radio frame may be referred to as a subframe.
- a subframe may be composed of one or more slots in the time domain.
- the subframe may have a fixed length of time (eg, 1 ms) that does not depend on numerology.
- the neurology may be a communication parameter applied to at least one of transmission and reception of a certain signal or channel.
- SCS SubCarrier Spacing
- bandwidth For example, subcarrier spacing (SCS: SubCarrier Spacing), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI: Transmission Time Interval), number of symbols per TTI, radio frame configuration, transceiver in frequency domain
- TTI Transmission Time Interval
- number of symbols per TTI radio frame configuration
- transceiver in frequency domain It may indicate at least one of a specific filtering process to be performed and a specific windowing process to be performed by the transceiver in the time domain.
- a slot may be configured with one or a plurality of symbols (OFDM (Orthogonal Frequency Division Multiplexing) symbol, SC-FDMA (Single Carrier Frequency Division Multiple Access) symbol, etc.) in the time domain. Further, the slot may be a time unit based on the numerology.
- OFDM Orthogonal Frequency Division Multiplexing
- SC-FDMA Single Carrier Frequency Division Multiple Access
- the slot may include a plurality of mini slots. Each minislot may be configured with one or more symbols in the time domain. The minislot may also be called a subslot. A mini-slot may be composed of fewer symbols than slots.
- PDSCH (or PUSCH) transmitted in units of time larger than a minislot may be referred to as PDSCH (PUSCH) mapping type A.
- PDSCH (or PUSCH) transmitted using a minislot may be referred to as a PDSCH (PUSCH) mapping type B.
- Radio frame, subframe, slot, minislot, and symbol all represent time units when transmitting signals. Different names may be used for the radio frame, subframe, slot, minislot, and symbol.
- one subframe may be called a transmission time interval (TTI)
- TTI transmission time interval
- TTI transmission time interval
- TTI transmission time interval
- TTI transmission time interval
- TTI transmission time interval
- TTI slot or one minislot
- at least one of the subframe and the TTI may be a subframe (1 ms) in the existing LTE, a period shorter than 1 ms (for example, 1-13 symbols), or a period longer than 1 ms. It may be.
- a unit representing TTI may be called a slot, a minislot, or the like instead of a subframe.
- TTI means, for example, a minimum time unit for scheduling in wireless communication.
- a radio base station performs scheduling to allocate radio resources (frequency bandwidth, transmission power, etc. that can be used in each user terminal) to each user terminal in units of TTI.
- the definition of TTI is not limited to this.
- the TTI may be a transmission time unit such as a channel-encoded data packet (transport block), a code block, or a code word, or may be a processing unit such as scheduling or link adaptation.
- a time interval for example, the number of symbols
- a transport block, a code block, a code word, etc. may be shorter than the TTI.
- one or more TTIs may be the minimum scheduling unit. Further, the number of slots (the number of mini-slots) constituting the minimum time unit of the scheduling may be controlled.
- a TTI having a time length of 1 ms may be called a normal TTI (TTI in LTE Rel. 8-12), a normal TTI, a long TTI, a normal subframe, a normal subframe, or a long subframe.
- a TTI shorter than a normal TTI may be called a shortened TTI, a short TTI, a partial TTI (partial or fractional TTI), a shortened subframe, a short subframe, a minislot, or a subslot.
- a long TTI (eg, normal TTI, subframe, etc.) may be read as a TTI having a time length exceeding 1 ms, and a short TTI (eg, shortened TTI) is less than the TTI length of the long TTI and 1 ms. It may be replaced with a TTI having the above TTI length.
- a resource block (RB) is a resource allocation unit in the time domain and the frequency domain, and may include one or a plurality of continuous subcarriers (subcarriers) in the frequency domain.
- the RB may include one or a plurality of symbols in the time domain, and may have a length of 1 slot, 1 mini slot, 1 subframe, or 1 TTI.
- One TTI and one subframe may each be composed of one or a plurality of resource blocks.
- One or more RBs include physical resource blocks (PRB), sub-carrier groups (SCG), resource element groups (REG), PRB pairs, RB pairs, etc. May be called.
- PRB physical resource blocks
- SCG sub-carrier groups
- REG resource element groups
- PRB pairs RB pairs, etc. May be called.
- the resource block may be configured by one or a plurality of resource elements (RE: Resource Element).
- RE Resource Element
- 1RE may be a radio resource region of 1 subcarrier and 1 symbol.
- the structure of the above-described radio frame, subframe, slot, minislot, symbol, etc. is merely an example.
- the number of subframes included in a radio frame, the number of slots per subframe or radio frame, the number of minislots included in the slot, the number of symbols and RBs included in the slot or minislot, and included in the RB The number of subcarriers, the number of symbols in the TTI, the symbol length, the cyclic prefix (CP) length, and the like can be variously changed.
- information, parameters, and the like described in the present disclosure may be expressed using absolute values, may be expressed using relative values from predetermined values, or may be expressed using other corresponding information. May be represented.
- the radio resource may be indicated by a predetermined index.
- the names used for parameters and the like in this disclosure are not limited names in any way.
- various channels PUCCH (Physical Uplink Control Channel), PDCCH (Physical Downlink Control Channel), etc.
- information elements can be identified by any suitable name, so the various channels and information elements assigned to them.
- the name is not limited in any way.
- the information, signals, etc. described in this disclosure may be represented using any of a variety of different technologies.
- data, commands, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description are voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these May be represented by a combination of
- information, signals, and the like can be output from the upper layer to at least one of the lower layer and the lower layer to the upper layer.
- Information, signals, and the like may be input / output via a plurality of network nodes.
- the input / output information, signals, etc. may be stored in a specific location (for example, a memory) or may be managed using a management table. Input / output information, signals, and the like can be overwritten, updated, or added. The output information, signals, etc. may be deleted. Input information, signals, and the like may be transmitted to other devices.
- information notification includes physical layer signaling (eg, downlink control information (DCI), uplink control information (UCI)), upper layer signaling (eg, RRC (Radio Resource Control) signaling), It may be implemented by broadcast information (master information block (MIB), system information block (SIB), etc.), MAC (Medium Access Control) signaling), other signals, or a combination thereof.
- DCI downlink control information
- UCI uplink control information
- RRC Radio Resource Control
- MIB master information block
- SIB system information block
- MAC Medium Access Control
- the physical layer signaling may be referred to as L1 / L2 (Layer 1 / Layer 2) control information (L1 / L2 control signal), L1 control information (L1 control signal), or the like.
- the RRC signaling may be referred to as an RRC message, and may be, for example, an RRC connection setup (RRCConnectionSetup) message, an RRC connection reconfiguration (RRCConnectionReconfiguration) message, or the like.
- the MAC signaling may be notified using, for example, a MAC control element (MAC CE (Control Element)).
- notification of predetermined information is not limited to explicit notification, but implicitly (for example, by not performing notification of the predetermined information or other information) May be performed).
- the determination may be performed by a value represented by 1 bit (0 or 1), or may be performed by a boolean value represented by true or false.
- the comparison may be performed by numerical comparison (for example, comparison with a predetermined value).
- software, instructions, information, etc. may be transmitted / received via a transmission medium.
- the software uses websites using at least one of wired technology (coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), etc.) and wireless technology (infrared, microwave, etc.) When transmitted from a server or other remote source, at least one of these wired and wireless technologies is included within the definition of a transmission medium.
- system and “network” as used in this disclosure may be used interchangeably.
- base station BS
- radio base station fixed station
- NodeB NodeB
- eNodeB eNodeB
- gNodeB gNodeB
- a base station may also be called terms such as a macro cell, a small cell, a femto cell, and a pico cell.
- the base station can accommodate one or a plurality of (for example, three) cells (also called sectors). If the base station accommodates multiple cells, the entire coverage area of the base station can be partitioned into multiple smaller areas, each smaller area being a base station subsystem (eg, an indoor small base station (RRH: Remote Radio Head)) can also provide communication services.
- a base station subsystem eg, an indoor small base station (RRH: Remote Radio Head)
- RRH Remote Radio Head
- the terms “cell” or “sector” refer to part or all of the coverage area of at least one of a base station and a base station subsystem that provides communication services in this coverage.
- MS mobile station
- UE user equipment
- Mobile station subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal , Handset, user agent, mobile client, client or some other suitable term.
- At least one of the base station and the mobile station may be referred to as a transmission device, a reception device, or the like.
- the base station and the mobile station may be a device mounted on the mobile body, the mobile body itself, or the like.
- the moving body may be a vehicle (for example, a car, an airplane, etc.), an unattended moving body (for example, a drone, an autonomous driving vehicle, etc.), or a robot (manned or unmanned).
- at least one of the base station and the mobile station includes a device that does not necessarily move during a communication operation.
- the radio base station in the present disclosure may be replaced with a user terminal.
- the communication between the radio base station and the user terminal is replaced with communication between a plurality of user terminals (for example, D2D (Device-to-Device), V2X (Vehicle-to-Everything), etc. may be called))
- a plurality of user terminals for example, D2D (Device-to-Device), V2X (Vehicle-to-Everything), etc. may be called)
- the user terminal 20 may have a function that the wireless base station 10 has.
- words such as “up” and “down” may be read as words corresponding to communication between terminals (for example, “side”).
- an uplink channel, a downlink channel, etc. may be read as a side channel.
- the user terminal in the present disclosure may be replaced with a radio base station.
- the wireless base station 10 may have a function that the user terminal 20 has.
- the operation performed by the base station may be performed by the upper node in some cases.
- various operations performed for communication with a terminal may include a base station and one or more network nodes other than the base station (for example, It is obvious that this can be done by MME (Mobility Management Entity), S-GW (Serving-Gateway), etc., but not limited thereto) or a combination thereof.
- MME Mobility Management Entity
- S-GW Serving-Gateway
- each aspect / embodiment described in the present disclosure may be used alone, may be used in combination, or may be switched according to execution.
- the order of the processing procedures, sequences, flowcharts, and the like of each aspect / embodiment described in the present disclosure may be changed as long as there is no contradiction.
- the methods described in this disclosure present elements of the various steps in an exemplary order and are not limited to the specific order presented.
- Each aspect / embodiment described in the present disclosure includes LTE (Long Term Evolution), LTE-A (LTE-Advanced), LTE-B (LTE-Beyond), SUPER 3G, IMT-Advanced 4G (4th generation mobile communication). system), 5G (5th generation mobile communication system), FRA (Future Radio Access), New-RAT (Radio Access Technology), NR (New Radio), NX (New radio access), FX (Future generation radio access), GSM (Registered trademark) (Global System for Mobile communications), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.
- the present invention may be applied to a system using other appropriate wireless communication methods, a next-generation system extended based on these, and the like.
- a plurality of systems may be combined and applied (for example, a combination of LTE or LTE-A and 5G).
- the phrase“ based on ”does not mean“ based only on, ”unless expressly specified otherwise.
- the phrase “based on” means both “based only on” and “based at least on.”
- any reference to elements using designations such as “first”, “second”, etc. as used in this disclosure does not generally limit the amount or order of those elements. These designations can be used in this disclosure as a convenient way to distinguish between two or more elements. Thus, reference to the first and second elements does not mean that only two elements can be employed or that the first element must precede the second element in some way.
- determining may encompass a wide variety of actions. For example, “determination (decision)” includes determination, calculation, calculation, processing, derivation, investigating, looking up (eg, table, (Searching in a database or another data structure), ascertaining, etc. may be considered to be “determining”.
- determination (decision) includes receiving (for example, receiving information), transmitting (for example, transmitting information), input (input), output (output), access ( accessing) (e.g., accessing data in memory), etc. may be considered to be “determining”.
- determination is considered to be “determination (resolving)”, “selecting”, “choosing”, “establishing”, “comparing”, etc. Also good. That is, “determination (determination)” may be regarded as “determination (determination)” of some operation.
- connection is any direct or indirect connection or coupling between two or more elements. And may include the presence of one or more intermediate elements between two elements “connected” or “coupled” to each other.
- the coupling or connection between the elements may be physical, logical, or a combination thereof. For example, “connection” may be read as “access”.
- radio frequency domain microwave It can be considered to be “connected” or “coupled” to each other using electromagnetic energy having a wavelength in the region, light (both visible and invisible) region, and the like.
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
一実施形態において、PUSCH時間ドメインRAリストに含まれるRA候補数は、16を超えてもよい。この場合、DCIに含まれる時間ドメインRAフィールドのビット数は、4ビットを超えてもよい。
以下、具体的な設定の一例を説明する。図1A及び1Bは、一実施形態に係るPUSCH時間ドメインRAリストの設定の一例を示す図である。なお、図1A及び1Bではマッピングタイプについては省略している。また、K2及びSLIVの値は図示される値に限定されない。
以下、本開示の一実施形態に係る無線通信システムの構成について説明する。この無線通信システムでは、本開示の上記各実施形態に係る無線通信方法のいずれか又はこれらの組み合わせを用いて通信が行われる。
図3は、一実施形態に係る無線基地局の全体構成の一例を示す図である。無線基地局10は、複数の送受信アンテナ101と、アンプ部102と、送受信部103と、ベースバンド信号処理部104と、呼処理部105と、伝送路インターフェース106と、を備えている。なお、送受信アンテナ101、アンプ部102、送受信部103は、それぞれ1つ以上を含むように構成されればよい。
図5は、一実施形態に係るユーザ端末の全体構成の一例を示す図である。ユーザ端末20は、複数の送受信アンテナ201と、アンプ部202と、送受信部203と、ベースバンド信号処理部204と、アプリケーション部205と、を備えている。なお、送受信アンテナ201、アンプ部202、送受信部203は、それぞれ1つ以上を含むように構成されればよい。
なお、上記実施形態の説明に用いたブロック図は、機能単位のブロックを示している。これらの機能ブロック(構成部)は、ハードウェア及びソフトウェアの少なくとも一方の任意の組み合わせによって実現される。また、各機能ブロックの実現方法は特に限定されない。すなわち、各機能ブロックは、物理的又は論理的に結合した1つの装置を用いて実現されてもよいし、物理的又は論理的に分離した2つ以上の装置を直接的又は間接的に(例えば、有線、無線などを用いて)接続し、これら複数の装置を用いて実現されてもよい。
なお、本開示において説明した用語及び本開示の理解に必要な用語については、同一の又は類似する意味を有する用語と置き換えてもよい。例えば、チャネル及びシンボルの少なくとも一方は信号(シグナリング)であってもよい。また、信号はメッセージであってもよい。参照信号は、RS(Reference Signal)と略称することもでき、適用される標準によってパイロット(Pilot)、パイロット信号などと呼ばれてもよい。また、コンポーネントキャリア(CC:Component Carrier)は、セル、周波数キャリア、キャリア周波数などと呼ばれてもよい。
Claims (6)
- 上り共有チャネルの送信を指示する下り制御情報(DCI:Downlink Control Information)を受信する受信部と、
前記DCIに含まれる時間ドメインリソース割り当て(RA:Resource Allocation)フィールドのサイズが、前記DCIのフォーマットに応じて異なると判断し、当該フィールドに基づいて、前記上り共有チャネルの送信を制御する制御部と、を有することを特徴とするユーザ端末。 - 前記制御部は、前記DCIのフォーマットがDCIフォーマット0_1である場合、前記フィールドのサイズが最大6ビットであると想定することを特徴とする請求項1に記載のユーザ端末。
- 前記制御部は、前記DCIのフォーマットがDCIフォーマット0_0である場合、前記フィールドのサイズが4ビットであると想定することを特徴とする請求項1又は請求項2に記載のユーザ端末。
- 前記制御部は、前記DCIがユーザ端末固有サーチスペースにおいて受信された場合、又は前記DCIが共通サーチスペースにおいて受信され、かつC-RNTI(Cell-Radio Network Temporary Identifier)によってCRC(Cyclic Redundancy Check)スクランブルされている場合、DCIフォーマット0_1に関する時間ドメインRA候補のリストに基づいて、前記上り共有チャネルの送信を制御することを特徴とする請求項3に記載のユーザ端末。
- 前記制御部は、前記DCIが共通サーチスペースにおいて受信され、かつTC-RNTI(Temporary C-RNTI)によってCRCスクランブルされている場合、又は前記DCIがランダムアクセスレスポンスに含まれる場合、DCIフォーマット0_1に関する時間ドメインRA候補のリストとは異なる時間ドメインRA候補のリストに基づいて、前記上り共有チャネルの送信を制御することを特徴とする請求項4に記載のユーザ端末。
- 上り共有チャネルの送信を指示する下り制御情報(DCI:Downlink Control Information)を送信する送信部と、
前記DCIに含まれる時間ドメインリソース割り当て(RA:Resource Allocation)フィールドのサイズを、前記DCIのフォーマットに応じて異ならせる制御をする制御部と、を有することを特徴とする無線基地局。
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EP24155998.8A EP4344326A3 (en) | 2018-04-05 | 2018-04-05 | User terminal and wireless base station |
BR112020020336-0A BR112020020336A2 (pt) | 2018-04-05 | 2018-04-05 | Terminal de usuário e estação rádio base |
EP18913610.4A EP3780799B1 (en) | 2018-04-05 | 2018-04-05 | User terminal and wireless base station |
CN201880094430.0A CN112262603B (zh) | 2018-04-05 | 2018-04-05 | 用户终端以及无线基站 |
PCT/JP2018/014644 WO2019193733A1 (ja) | 2018-04-05 | 2018-04-05 | ユーザ端末及び無線基地局 |
PL18913610.4T PL3780799T3 (pl) | 2018-04-05 | 2018-04-05 | Terminal użytkownika i bezprzewodowa stacja bazowa |
US17/044,664 US11638277B2 (en) | 2018-04-05 | 2018-04-05 | Terminal, radio communication method, base station and system for transmitting physical uplink shared channel based on time domain resource allocation list |
JP2020511560A JP7116157B2 (ja) | 2018-04-05 | 2018-04-05 | 端末、無線通信方法、基地局及びシステム |
ES18913610T ES2975233T3 (es) | 2018-04-05 | 2018-04-05 | Terminal de usuario y estación base inalámbrica |
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Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019213978A1 (zh) * | 2018-05-11 | 2019-11-14 | 华为技术有限公司 | 一种信息传输方法和终端设备以及网络设备 |
US12082162B2 (en) * | 2018-11-01 | 2024-09-03 | Apple Inc. | Semi-static resource allocation for new radio integrated access and backhaul (IAB) Network |
US11356995B2 (en) * | 2019-07-01 | 2022-06-07 | FG Innovation Company Limited | Method and apparatus for performing repetition transmissions in wireless communication system |
WO2023123345A1 (en) * | 2021-12-31 | 2023-07-06 | Lenovo (Beijing) Limited | Methods and apparatuses for channel estimation based on dmrs |
Family Cites Families (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9344259B2 (en) * | 2007-06-20 | 2016-05-17 | Google Technology Holdings LLC | Control channel provisioning and signaling |
US8340676B2 (en) * | 2009-06-25 | 2012-12-25 | Motorola Mobility Llc | Control and data signaling in heterogeneous wireless communication networks |
RU2505945C1 (ru) * | 2009-12-17 | 2014-01-27 | ЭлДжи ЭЛЕКТРОНИКС ИНК. | Устройство и способ предотвращения блокировки канала управления |
CN101801093A (zh) * | 2010-02-03 | 2010-08-11 | 中兴通讯股份有限公司 | 资源分配方式指示方法、装置和系统 |
CN101808408B (zh) * | 2010-02-11 | 2015-06-03 | 中兴通讯股份有限公司 | 下行控制信息的传输方法及传输系统 |
KR20120124013A (ko) * | 2011-05-02 | 2012-11-12 | 주식회사 팬택 | 자원 할당 및 획득 방법과 이를 이용한 장치 |
KR101876230B1 (ko) * | 2011-06-16 | 2018-07-10 | 주식회사 팬택 | 다중 요소 반송파 시스템에서 제어채널의 수신장치 및 방법 |
WO2013012261A2 (ko) * | 2011-07-19 | 2013-01-24 | 엘지전자 주식회사 | 무선통신 시스템에서 자원 할당 정보를 송신 및 수신하는 방법과 이를 위한 장치 |
EP2753126A4 (en) * | 2011-09-29 | 2015-06-24 | Fujitsu Ltd | METHOD FOR SENDING DOWNLINK CONTROL INFORMATION, BLIND IDENTIFICATION METHOD, BASIC STATION AND TERMINAL |
AU2012354454B2 (en) * | 2011-12-20 | 2015-07-02 | Lg Electronics Inc. | Method and apparatus for performing random access process in wireless communication system |
KR101669701B1 (ko) * | 2012-06-25 | 2016-10-26 | 주식회사 케이티 | 물리적 상향링크 데이터 채널 맵핑정보 제공방법 및 그 송수신포인트, 물리적 상향링크 데이터 채널의 전송방법, 그 단말 |
CN103582098A (zh) * | 2012-07-18 | 2014-02-12 | 中国移动通信集团公司 | 下行控制信道的发送方法及接收方法、相应设备 |
WO2014065584A1 (ko) * | 2012-10-23 | 2014-05-01 | 엘지전자 주식회사 | 무선 통신 시스템에서 제어 정보를수신하는 방법 및 이를 위한 장치 |
CN104756536B (zh) * | 2012-10-23 | 2019-04-19 | Lg电子株式会社 | 用于在无线通信系统中接收控制信息的方法及装置 |
WO2015098880A1 (ja) * | 2013-12-27 | 2015-07-02 | シャープ株式会社 | 端末装置、基地局装置および方法 |
US11057921B2 (en) * | 2014-10-01 | 2021-07-06 | Samsung Electronics Co., Ltd. | System and method for improving spectral efficiency and coverage for user equipments |
KR102518821B1 (ko) * | 2015-01-20 | 2023-04-06 | 엘지전자 주식회사 | 상향링크 제어 정보를 전송하기 위한 방법 및 이를 위한 장치 |
JP2018041999A (ja) * | 2015-01-28 | 2018-03-15 | シャープ株式会社 | 端末装置、基地局装置、通信方法、および、集積回路 |
US10117235B2 (en) * | 2015-04-10 | 2018-10-30 | Lg Electronics Inc. | Method and device for supporting HARQ in unlicensed band |
JP2016219896A (ja) * | 2015-05-14 | 2016-12-22 | 株式会社Nttドコモ | ユーザ端末、無線基地局及び無線通信方法 |
JP6081531B2 (ja) * | 2015-06-26 | 2017-02-15 | 株式会社Nttドコモ | ユーザ端末、無線基地局及び無線通信方法 |
US9801175B2 (en) * | 2015-11-06 | 2017-10-24 | Motorola Mobility Llc | Method and apparatus for low latency transmissions |
KR20180013660A (ko) * | 2016-07-29 | 2018-02-07 | 삼성전자주식회사 | 이동 통신 시스템에서의 채널 상태 정보 보고 방법 및 장치 |
US20180048447A1 (en) * | 2016-08-11 | 2018-02-15 | Sharp Laboratories Of America, Inc. | User equipments, base stations and methods |
CN107734693B (zh) * | 2016-08-12 | 2020-09-22 | 华硕电脑股份有限公司 | 无线通信系统中用于确定基础参数带宽的方法和设备 |
US20180220400A1 (en) * | 2017-02-02 | 2018-08-02 | Sharp Laboratories Of America, Inc. | User equipments, base stations and methods |
US10341998B2 (en) * | 2017-03-23 | 2019-07-02 | Sharp Laboratories Of America, Inc. | User equipments, base stations and methods |
US10973013B2 (en) * | 2017-11-15 | 2021-04-06 | Sharp Kabushiki Kaisha | User equipments, base stations and methods |
US10945251B2 (en) * | 2017-11-15 | 2021-03-09 | Sharp Kabushiki Kaisha | User equipments, base stations and methods |
US11757572B2 (en) * | 2018-02-14 | 2023-09-12 | Sharp Kabushiki Kaisha | User equipments, base stations and methods for uplink transmission |
US11457434B2 (en) * | 2018-06-22 | 2022-09-27 | Sharp Laboratories Of America, Inc. | User equipments, base stations and methods for time-domain resource allocation |
-
2018
- 2018-04-05 ES ES18913610T patent/ES2975233T3/es active Active
- 2018-04-05 CN CN201880094430.0A patent/CN112262603B/zh active Active
- 2018-04-05 EP EP24155998.8A patent/EP4344326A3/en active Pending
- 2018-04-05 US US17/044,664 patent/US11638277B2/en active Active
- 2018-04-05 JP JP2020511560A patent/JP7116157B2/ja active Active
- 2018-04-05 PL PL18913610.4T patent/PL3780799T3/pl unknown
- 2018-04-05 EP EP18913610.4A patent/EP3780799B1/en active Active
- 2018-04-05 WO PCT/JP2018/014644 patent/WO2019193733A1/ja active Application Filing
- 2018-04-05 BR BR112020020336-0A patent/BR112020020336A2/pt unknown
Non-Patent Citations (5)
Title |
---|
"Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2 (Release 8", 3GPP TS 36.300, April 2010 (2010-04-01) |
CMCC: "Discussion on DCI format design", 3GPP TSG RAN WG1 MEETING #92 R1-1802042, 26 February 2018 (2018-02-26), XP051397138 * |
NTT DOCOMO; INC: "DCI contents and formats", 3GPP TSG RAN WG1 MEETING #92 R1-1802482, 26 February 2018 (2018-02-26), XP051397988 * |
See also references of EP3780799A4 |
VIVO: "Remaining details on DCI content and formats", 3GPP TSG RAN WG1 MEETING #92 R1-1801533, 26 February 2018 (2018-02-26), XP051396785 * |
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CN112262603B (zh) | 2024-04-02 |
EP3780799A4 (en) | 2021-12-08 |
BR112020020336A2 (pt) | 2021-03-30 |
JP7116157B2 (ja) | 2022-08-09 |
EP4344326A2 (en) | 2024-03-27 |
EP3780799B1 (en) | 2024-03-13 |
EP4344326A3 (en) | 2024-05-29 |
JPWO2019193733A1 (ja) | 2021-04-01 |
ES2975233T3 (es) | 2024-07-04 |
US20210045139A1 (en) | 2021-02-11 |
EP3780799A1 (en) | 2021-02-17 |
US11638277B2 (en) | 2023-04-25 |
PL3780799T3 (pl) | 2024-05-27 |
CN112262603A (zh) | 2021-01-22 |
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