WO2023073973A1 - 端末、基地局及び無線通信方法 - Google Patents

端末、基地局及び無線通信方法 Download PDF

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Publication number
WO2023073973A1
WO2023073973A1 PCT/JP2021/040178 JP2021040178W WO2023073973A1 WO 2023073973 A1 WO2023073973 A1 WO 2023073973A1 JP 2021040178 W JP2021040178 W JP 2021040178W WO 2023073973 A1 WO2023073973 A1 WO 2023073973A1
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Prior art keywords
specific
sequence
information
pdsch
data
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English (en)
French (fr)
Japanese (ja)
Inventor
祐輝 松村
翔平 吉岡
浩樹 原田
聡 永田
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NTT Docomo Inc
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NTT Docomo Inc
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Priority to PCT/JP2021/040178 priority Critical patent/WO2023073973A1/ja
Priority to CN202180103571.6A priority patent/CN118140586A/zh
Priority to JP2023556077A priority patent/JP7747769B2/ja
Priority to EP21962512.6A priority patent/EP4425969A4/en
Publication of WO2023073973A1 publication Critical patent/WO2023073973A1/ja
Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/40—Connection management for selective distribution or broadcast

Definitions

  • the present disclosure relates to terminals, base stations, and wireless communication methods that support multicast/broadcast services.
  • the 3rd Generation Partnership Project (3GPP) has specified the 5th generation mobile communication system (also called 5G, New Radio (NR) or Next Generation (NG)), and the next generation specification called Beyond 5G, 5G Evolution or 6G We are also proceeding with 5G, 5G Evolution or 6G We are also proceeding with 5G, 5G Evolution or 6G We are also proceeding with 5G, 5G Evolution or 6G We are also proceeding with 5G, 5G Evolution or 6G We are also proceeding with 5G, 5G Evolution or 6G
  • simultaneous data transmission (may be called distribution) services MMS: Multicast and Broadcast Services
  • MMS Multicast and Broadcast Services
  • UE User Equipment
  • MBS supports data transmission to multiple UEs in RRC (Radio Resource Control) idle or RRC inactive.
  • RRC idle or RRC inactive UEs generate specific sequences to be applied to various sequences for MBS based on specific parameters.
  • the present disclosure has been made in view of such circumstances, and aims to provide terminals, base stations, and wireless communication methods that can appropriately identify various sequences related to MBS.
  • One aspect of the disclosure is a receiving unit that receives a sequence related to data delivery to a plurality of terminals, and when a specific condition is satisfied, based on a specific parameter included in broadcast information, generates a specific sequence that is applied to the sequence A terminal, comprising: a control unit for
  • One aspect of the disclosure is a transmission unit that transmits a sequence related to data delivery to a plurality of terminals, and a specific sequence applied to the sequence based on a specific parameter included in broadcast information when a specific condition is satisfied. and a controller assumed to be generated in each of a plurality of terminals.
  • One aspect of the disclosure includes a terminal and a base station, and the terminal includes a receiving unit that receives a sequence related to data delivery to a plurality of terminals, and when a specific condition is satisfied, based on a specific parameter included in broadcast information and a controller for generating a specific sequence to be applied to said sequence.
  • One aspect of the disclosure is a step of receiving a sequence related to data delivery to a plurality of terminals, and generating a specific sequence to be applied to the sequence based on a specific parameter included in broadcast information when a specific condition is satisfied.
  • a wireless communication method comprising:
  • FIG. 1 is an overall schematic configuration diagram of a radio communication system 10.
  • FIG. 2 is a diagram illustrating frequency ranges used in wireless communication system 10.
  • FIG. 3 is a diagram showing a configuration example of radio frames, subframes and slots used in the radio communication system 10.
  • FIG. 4 is a functional block configuration diagram of UE200.
  • FIG. 5 is a functional block configuration diagram of gNB100.
  • FIG. 6 is a diagram showing a configuration example of PTM transmission method 1 and PTM transmission method 2.
  • FIG. 7 is a diagram for explaining generation of a sequence for GC-PDCCH.
  • FIG. 8 is a diagram for explaining the generation of sequences related to GC-PDSCH.
  • FIG. 9 is a diagram for explaining the generation of a DMRS-related sequence for GC-PDCCH.
  • FIG. 10 is a diagram for explaining the generation of a sequence related to DMRS for GC-PDSCH.
  • FIG. 11 is a diagram showing an example of the hardware configuration of gNB100 and UE200.
  • FIG. 12 is a diagram showing a configuration example of the vehicle 2001. As shown in FIG.
  • FIG. 1 is an overall schematic configuration diagram of a radio communication system 10 according to an embodiment.
  • the radio communication system 10 is a radio communication system according to 5G New Radio (NR), and includes a Next Generation-Radio Access Network 20 (hereinafter, NG-RAN 20, and a terminal 200 (hereinafter, UE (User Equipment) 200). .
  • NR 5G New Radio
  • NG-RAN 20 Next Generation-Radio Access Network
  • UE User Equipment
  • the wireless communication system 10 may be a wireless communication system according to a system called Beyond 5G, 5G Evolution, or 6G.
  • NG-RAN 20 includes a base station 100 (hereinafter gNB 100).
  • gNB 100 base station 100
  • the specific configuration of the radio communication system 10 including the number of gNBs 100 and UEs 200 is not limited to the example shown in FIG.
  • NG-RAN 20 actually includes multiple NG-RAN Nodes, specifically gNBs (or ng-eNBs), and is connected to a 5G-compliant core network (5GC, not shown). Note that NG-RAN 20 and 5GC may simply be referred to as a "network”.
  • gNBs or ng-eNBs
  • 5GC 5G-compliant core network
  • the gNB100 is a 5G-compliant radio base station that performs 5G-compliant radio communication with the UE200.
  • the gNB100 and UE200 use Massive MIMO (Multiple-Input Multiple-Output) and multiple component carriers (CC) to generate beams BM with higher directivity by controlling radio signals transmitted from multiple antenna elements. It can support carrier aggregation (CA), which is used in a bundle, and dual connectivity (DC), which simultaneously communicates with two or more transport blocks between the UE and each of the two NG-RAN Nodes.
  • Massive MIMO Multiple-Input Multiple-Output
  • CC component carriers
  • CA carrier aggregation
  • DC dual connectivity
  • the wireless communication system 10 supports multiple frequency ranges (FR).
  • FIG. 2 shows the frequency ranges used in wireless communication system 10. As shown in FIG.
  • the wireless communication system 10 supports FR1 and FR2.
  • the frequency bands of each FR are as follows.
  • FR1 410MHz to 7.125GHz
  • FR2 24.25 GHz to 52.6 GHz
  • SCS Sub-Carrier Spacing
  • BW bandwidth
  • FR2 is higher frequency than FR1 and may use an SCS of 60 or 120 kHz (240 kHz may be included) and a bandwidth (BW) of 50-400 MHz.
  • SCS may be interpreted as numerology.
  • numerology is defined in 3GPP TS38.300 and corresponds to one subcarrier spacing in the frequency domain.
  • the wireless communication system 10 also supports frequency bands higher than the FR2 frequency band. Specifically, the wireless communication system 10 supports frequency bands above 52.6 GHz and up to 71 GHz or 114.25 GHz. Such high frequency bands may be conveniently referred to as "FR2x".
  • Cyclic Prefix-Orthogonal Frequency Division Multiplexing (CP-OFDM)/ Discrete Fourier Transform - Spread (DFT-S-OFDM) may be applied.
  • FIG. 3 shows a configuration example of radio frames, subframes and slots used in the radio communication system 10.
  • one slot consists of 14 symbols, and the larger (wider) the SCS, the shorter the symbol period (and slot period).
  • the SCS is not limited to the intervals (frequencies) shown in FIG. For example, 480 kHz, 960 kHz, etc. may be used.
  • the number of symbols forming one slot does not necessarily have to be 14 symbols (eg, 28 symbols, 56 symbols). Furthermore, the number of slots per subframe may vary between SCSs.
  • time direction (t) shown in FIG. 3 may be called the time domain, symbol period, symbol time, or the like.
  • the frequency direction may be called a frequency domain, resource block, subcarrier, bandwidth part (BWP), or the like.
  • DMRS DeModulation Reference Signal
  • the downlink data channel specifically, may include DMRS for PDSCH (Physical Downlink Shared Channel), and may include DMRS for PDCCH (Physical Downlink Control Channel).
  • DMRS for PDSCH Physical Downlink Shared Channel
  • PDCCH Physical Downlink Control Channel
  • an uplink data channel specifically, a DMRS for PUSCH (Physical Uplink Shared Channel) may be interpreted in the same way as a DMRS for PDSCH.
  • DMRS can be used for channel estimation in devices, eg, UE 200, as part of coherent demodulation.
  • DMRS may reside only in resource blocks (RBs) used for PDSCH transmission.
  • a DMRS may have multiple mapping types. Specifically, DMRS has mapping type A and mapping type B. For mapping type A, the first DMRS is placed in the 2nd or 3rd symbol of the slot. In mapping type A, the DMRS may be mapped relative to slot boundaries, regardless of where in the slot the actual data transmission begins. The reason the first DMRS is placed in the second or third symbol of the slot may be interpreted as to place the first DMRS after the control resource sets (CORESET).
  • CORESET control resource sets
  • mapping type B the first DMRS may be placed in the first symbol of data allocation. That is, the position of the DMRS may be given relative to where the data is located rather than relative to slot boundaries.
  • DMRS may have multiple types (Type). Specifically, DMRS has Type 1 and Type 2. Type 1 and Type 2 differ in mapping in the frequency domain and the maximum number of orthogonal reference signals. Type 1 can output up to 4 orthogonal signals with single-symbol DMRS, and Type 2 can output up to 8 orthogonal signals with double-symbol DMRS.
  • FIG. 4 is a functional block diagram of the UE200.
  • the UE 200 includes a radio signal transmission/reception unit 210, an amplifier unit 220, a modem unit 230, a control signal/reference signal processing unit 240, an encoding/decoding unit 250, a data transmission/reception unit 260, and a control unit 270. .
  • the radio signal transmitting/receiving unit 210 transmits/receives radio signals according to NR.
  • the radio signal transmitting/receiving unit 210 supports Massive MIMO, CA that bundles multiple CCs, and DC that simultaneously communicates between the UE and each of the two NG-RAN Nodes.
  • the radio signal transmitting/receiving unit 210 may constitute a receiving unit that receives a sequence related to data distribution to multiple terminals (hereinafter referred to as UE200).
  • Data distribution to multiple UEs 200 may be referred to as MBS (Multicast and Broadcast Services).
  • the downlink channel may include PDSCH (multicast) transmitted by multicast, or may include PDSCH (unicast) transmitted by uniticast.
  • PDSCH (multicast) and PDSCH (unicast) are collectively referred to as PDSCH (multicast/unicast).
  • Reception of PDSCH (multicast/unicast) may be read as reception of data via PDSCH (multicast/unicast).
  • Sequences related to MBS are sequences related to control information (hereinafter referred to as PDCCH) used in MBS, sequences related to data distributed in MBS (hereinafter referred to as PDSCH), sequences related to reference signals (PDCCH DMRS) used for demodulation of PDCCH, and demodulation of PDSCH. It may also include a sequence for the reference signal (PDSCH DMRS) to use.
  • PDCCH control information
  • PDSCH sequences related to data distributed in MBS
  • PDSCH DMRS sequences related to reference signals
  • It may also include a sequence for the reference signal (PDSCH DMRS) to use.
  • the amplifier section 220 is configured by a PA (Power Amplifier)/LNA (Low Noise Amplifier) and the like. Amplifier section 220 amplifies the signal output from modem section 230 to a predetermined power level. In addition, amplifier section 220 amplifies the RF signal output from radio signal transmission/reception section 210 .
  • PA Power Amplifier
  • LNA Low Noise Amplifier
  • the modulation/demodulation unit 230 executes data modulation/demodulation, transmission power setting, resource block allocation, etc. for each predetermined communication destination (gNB 100 or other gNB).
  • the modem unit 230 may apply Cyclic Prefix-Orthogonal Frequency Division Multiplexing (CP-OFDM)/Discrete Fourier Transform-Spread (DFT-S-OFDM). Also, DFT-S-OFDM may be used not only for uplink (UL) but also for downlink (DL).
  • the control signal/reference signal processing unit 240 executes processing related to various control signals transmitted and received by the UE 200 and processing related to various reference signals transmitted and received by the UE 200.
  • control signal/reference signal processing unit 240 receives various control signals transmitted from the gNB 100 via a predetermined control channel, for example, radio resource control layer (RRC) control signals. Also, the control signal/reference signal processing unit 240 transmits various control signals to the gNB 100 via a predetermined control channel.
  • RRC radio resource control layer
  • the control signal/reference signal processing unit 240 executes processing using reference signals (RS) such as Demodulation Reference Signal (DMRS) and Phase Tracking Reference Signal (PTRS).
  • RS reference signals
  • DMRS Demodulation Reference Signal
  • PTRS Phase Tracking Reference Signal
  • a DMRS is a known reference signal (pilot signal) between a terminal-specific base station and a terminal for estimating the fading channel used for data demodulation.
  • PTRS is a terminal-specific reference signal for estimating phase noise, which is a problem in high frequency bands.
  • reference signals may include Channel State Information-Reference Signal (CSI-RS), Sounding Reference Signal (SRS), and Positioning Reference Signal (PRS) for position information.
  • CSI-RS Channel State Information-Reference Signal
  • SRS Sounding Reference Signal
  • PRS Positioning Reference Signal
  • control channels include Physical Downlink Control Channel (PDCCH), Physical Uplink Control Channel (PUCCH), Random Access Channel (RACH), Downlink Control Information (DCI) including Random Access Radio Network Temporary Identifier (RA-RNTI), and Physical Broadcast Channel (PBCH) etc. are included.
  • PDCCH Physical Downlink Control Channel
  • PUCCH Physical Uplink Control Channel
  • RACH Random Access Channel
  • DCI Downlink Control Information
  • RA-RNTI Random Access Radio Network Temporary Identifier
  • PBCH Physical Broadcast Channel
  • data channels include PDSCH (Physical Downlink Shared Channel) and PUSCH (Physical Uplink Shared Channel).
  • Data means data transmitted over a data channel.
  • a data channel may be read as a shared channel.
  • control signal/reference signal processing unit 240 may receive downlink control information (DCI).
  • DCI has existing fields such as DCI Formats, Carrier indicator (CI), BWP indicator, FDRA (Frequency Domain Resource Assignment), TDRA (Time Domain Resource Assignment), MCS (Modulation and Coding Scheme), HPN (HARQ Process Number) , NDI (New Data Indicator), RV (Redundancy Version), etc.
  • the value stored in the DCI Format field is an information element that specifies the DCI format.
  • the value stored in the CI field is an information element that specifies the CC to which DCI is applied.
  • the value stored in the BWP indicator field is an information element that specifies the BWP to which DCI applies.
  • the BWP that can be specified by the BWP indicator is configured by an information element (BandwidthPart-Config) included in the RRC message.
  • the value stored in the FDRA field is an information element that specifies the frequency domain resource to which DCI is applied.
  • a frequency domain resource is identified by a value stored in the FDRA field and an information element (RA Type) included in the RRC message.
  • the value stored in the TDRA field is an information element that specifies the time domain resource to which DCI applies.
  • the time domain resource is specified by the value stored in the TDRA field and information elements (pdsch-TimeDomainAllocationList, pusch-TimeDomainAllocationList) included in the RRC message.
  • a time-domain resource may be identified by a value stored in the TDRA field and a default table.
  • the value stored in the MCS field is an information element that specifies the MCS to which DCI applies.
  • the MCS is specified by the values stored in the MCS and the MCS table.
  • the MCS table may be specified by RRC messages or identified by RNTI scrambling.
  • the value stored in the HPN field is an information element that specifies the HARQ Process to which DCI is applied.
  • the value stored in NDI is an information element for specifying whether data to which DCI is applied is initial transmission data.
  • the value stored in the RV field is an information element that specifies the data redundancy
  • the encoding/decoding unit 250 performs data segmentation/concatenation, channel coding/decoding, etc. for each predetermined communication destination (gNB 100 or other gNB).
  • the encoding/decoding unit 250 divides the data output from the data transmission/reception unit 260 into pieces of a predetermined size, and performs channel coding on the divided data. Also, encoding/decoding section 250 decodes the data output from modem section 230 and concatenates the decoded data.
  • the data transmission/reception unit 260 executes transmission/reception of Protocol Data Unit (PDU) and Service Data Unit (SDU). Specifically, the data transmitting/receiving unit 260 performs PDU/SDU in multiple layers (medium access control layer (MAC), radio link control layer (RLC), packet data convergence protocol layer (PDCP), etc.). Assemble/disassemble etc. The data transmission/reception unit 260 also performs data error correction and retransmission control based on HARQ (Hybrid Automatic Repeat Request).
  • MAC medium access control layer
  • RLC radio link control layer
  • PDCP packet data convergence protocol layer
  • HARQ Hybrid Automatic Repeat Request
  • the control unit 270 controls each functional block that configures the UE200.
  • the control unit 270 constitutes a control unit that generates a specific sequence to be applied to MBS-related sequences based on specific parameters included in broadcast information when a specific condition is satisfied.
  • the broadcast information may be an SIB (System Information Block).
  • Broadcast information may be considered to be information that can be received by UE 200 in RRC idle or RRC inactive. Broadcast information may be considered to be information broadcast from the NW (cell).
  • the specific conditions may include conditions for receiving sequences related to MBS in an idle (RRC idle) or inactive (RRC inactive) state.
  • the specific condition may include a condition that the sequence for MBS is for a specific channel for MBS.
  • the specific channel may include MCCH (Multicast Control Channel) and MTCH (Multicast Traffic Channel).
  • FIG. 5 is a functional block configuration diagram of gNB100. As shown in FIG. 5, the gNB 100 has a receiver 110, a transmitter 120 and a controller .
  • the receiving unit 110 receives various signals from the UE200.
  • the receiver 110 may receive the UL signal via PUCCH or PUSCH.
  • the transmission unit 120 transmits various signals to the UE200. Transmitting section 120 may transmit the DL signal via PDCCH or PDSCH. In the embodiment, the transmission unit 120 may configure a transmission unit that transmits a sequence regarding data distribution (MBS) for multiple UEs 200 .
  • MMS data distribution
  • the control unit 130 controls the gNB100.
  • the control unit 130 is a control unit that assumes that a plurality of UEs 200 generate a specific sequence applied to a sequence related to MBS based on specific parameters included in broadcast information when a specific condition is satisfied. may be configured. That is, under this assumption, control section 130 may control transmission of MBS-related sequences (eg, GC-PDCCH, GC-PDSCH, DMRS for GC-PDCCH, DMRS for GC-PDSCH). .
  • MBS-related sequences eg, GC-PDCCH, GC-PDSCH, DMRS for GC-PDCCH, DMRS for GC-PDSCH.
  • the wireless communication system 10 may provide Multicast and Broadcast Services (MBS).
  • MBS Multicast and Broadcast Services
  • unicast may be interpreted as one-to-one communication with a network by specifying one specific UE 200 (identification information unique to the UE 200 may be specified).
  • Multicast may be interpreted as communication performed one-to-many (specified many) with the network by designating a plurality of specific UEs 200 (identification information for multicast may be designated). Note that the number of UEs 200 that receive received multicast data may eventually be one.
  • Broadcast may be interpreted as one-to-unspecified communication with the network for all UE 200.
  • the data to be multicast/broadcast may have the same copied content, but may have different content such as a header.
  • multicast/broadcast data may be sent (delivered) at the same time, but does not necessarily require strict concurrency and may include propagation delays and/or processing delays within the RAN nodes, and the like.
  • the radio resource control layer (RRC) state of the target UE 200 is either an idle state (RRC idle), a connected state (RRC connected), or another state (eg, inactive state). good too.
  • the inactive state may be interpreted as a state in which some RRC settings are maintained.
  • MBS multicast/broadcast PDSCH scheduling
  • MBS packet which can be read as data
  • RRC connected UE may be read as RRC idle UE and RRC inactive UE.
  • ⁇ PTM transmission method 1 (PTM-1): ⁇ For MBS group of RRC connected UE, group-common PDSCH is scheduled using group-common PDCCH (Physical Downlink Control Channel) ⁇ PDCCH CRC and PDSCH are group-common RNTI (Radio Network Temporary Identifier, may be called G-RNTI)
  • PTM transmission scheme 2 PTM-2): - For MBS group of RRC connected UE, schedule group-common PDSCH using terminal-specific (UE-specific) PDCCH - PDCCH CRC is scrambled by UE-specific RNTI - PDSCH is group- Scrambling by common RNTI
  • PTM-1 ⁇ For MBS group of RRC connected UE, group-common PDSCH is scheduled using group-common PDCCH (Physical Downlink Control Channel) ⁇ PDCCH CRC and PDSCH are group-common RNTI (Radio Network Temporary Identifier, may be called G-RNTI)
  • the UE-specific PDCCH/PDSCH can be identified by the target UE, but may not be identified by other UEs within the same MBS group.
  • a group common PDCCH/PDSCH is transmitted on the same time/frequency resource and can be identified by all UEs within the same MBS group.
  • the names of the PTM transmission methods 1 and 2 are tentative names, and may be called by other names as long as the above-described operations are performed.
  • RAN nodes may deliver individual copies of MBS data packets to individual UEs over the air.
  • PTM point-to-multipoint
  • a RAN node may deliver a single copy of MBS data packets over the air to a set of UEs.
  • HARQ Hybrid Automatic repeat request
  • ACK/NACK feedback Both ACK/NACK feedback (ACK/NACK feedback) ⁇ UEs that successfully receive/decode PDSCH transmit ACK. ⁇ UEs that fail to receive/decode PDSCH transmit NACK.
  • PUCCH-Config Physical Uplink Control Channel
  • - PUCCH resource Shared/orthogonal between UEs depends on network settings - HARQ-ACK CB (codebook): type-1 and type-2 (CB decision algorithm (specified in 3GPP TS38.213)) ⁇ Multiplexing: Unicast or multicast can be applied ⁇ Option 2: NACK-only feedback ⁇ A UE that has successfully received and decoded PDSCH does not transmit an ACK (does not transmit a response). ⁇ A UE that fails to receive or decode PDSCH transmits NACK. ⁇ In a given UE, PUCCH resource settings can be set separately by unicast or groupcast (multicast). ACK is a positive acknowledgment. , NACK may be called a negative acknowledgment. HARQ may be referred to as automatic repeat request.
  • ⁇ RRC and downlink control information (DCI: Downlink Control Information) • RRC only Also, the following content is assumed for SPS (Semi-persistent Scheduling) of multicast/broadcast PDSCH.
  • DCI Downlink Control Information
  • Activation/deactivation is possible It should be noted that deactivation may be replaced with other synonymous terms such as release. For example, activation may be read as activation, start, trigger, etc., and deactivation may be further read as end, stop, etc. FIG.
  • SPS is a scheduling used in contrast to dynamic scheduling, and may be called semi-fixed, semi-persistent or semi-persistent scheduling, or interpreted as Configured Scheduling (CS) good.
  • CS Configured Scheduling
  • Scheduling may be interpreted as the process of allocating resources for transmitting data.
  • Dynamic scheduling may be interpreted as a mechanism whereby all PDSCHs are scheduled by DCI (eg DCI 1_0, DCI 1_1 or DCI 1_2).
  • SPS may be interpreted as a mechanism by which PDSCH transmissions are scheduled by higher layer signaling such as RRC messages.
  • scheduling categories of time domain scheduling and frequency domain scheduling there may be scheduling categories of time domain scheduling and frequency domain scheduling.
  • multicast, groupcast, broadcast, and MBS may be read interchangeably.
  • Multicast PDSCH and PDSCH scrambled by group common RNTI may be read interchangeably.
  • data and packet may be read interchangeably, and may be interpreted as being synonymous with terms such as signal and data unit.
  • transmission, reception, transmission and distribution may be read interchangeably.
  • GC-PDCCH may be referred to as GC-PDCCH for MCCH/MTCH
  • GC-PDSCH may be referred to as GC-PDSCH for MCCH/MTCH.
  • multiple UEs 200 need to use a common sequence as the specific sequence applied to the GC-PDCCH sequence.
  • multiple UEs 200 need to use a common sequence as the specific sequence applied to the GC-PDSCH-related sequence.
  • a specific sequence may be referred to as a scrambling sequence.
  • multiple UEs 200 need to use a common sequence as the specific sequence applied to the DMRS-related sequence used for GC-PDCCH demodulation. Similarly, multiple UEs 200 need to use a common sequence as the specific sequence applied to the DMRS-related sequence used for GC-PDSCH demodulation.
  • a specific sequence may be referred to as a pseudo-random sequence.
  • An initial value (c init ) for a particular sequence is generated using a particular parameter (n ID or N ID ). Therefore, a specific parameter (n ID or N ID ) common to multiple UEs 200 needs to be used.
  • GC-PDCCH UE 200 generates an initial value (c int ) of a specific sequence to be applied to GC-PDCCH based on a specific parameter (n ID ) included in broadcast information (for example, SIB) when a specific condition is satisfied.
  • the specific parameter (n ID ) may be the same value as the upper layer parameter (eg pdcch-DMRS-ScramblingID).
  • Higher layer parameters may be included in the SIB.
  • the name of the higher layer parameter included in the SIB may be the same as the name of the higher layer parameter included in the RRC message or CORESET, or may be different from the name of the higher layer parameter included in the RRC message or CORESET. Even if the name of the upper layer parameter included in the SIB and the name of the upper layer parameter included in the RRC message or CORSET are the same, each parameter is used to set/notify different values/contents.
  • Specific conditions may include conditions used in RRC idle or RRC inactive.
  • the specific conditions may include conditions used in GC-PDCCH of MCCH or MTCH.
  • the specific conditions may include conditions used in the UE-common search space for GC-PDCCH.
  • a specific condition may be defined by a combination of these conditions.
  • the UE 200 detects "CFR (Common Frequency Resource) used for the GC-PDCCH for MCCH/MTCH” at the time of "UE-common search space for GC-PDCCH for MCCH/MTCH for broadcast".
  • CFR Common Frequency Resource
  • the higher layer parameter (pdcch-DMRS-ScramblingID) included in the SIB may be used as the specific parameter (n ID ).
  • n RNTI used for the initial value of the initial value (c int ) of the specific sequence is for "PDCCH in a UE-specific search space" when the upper layer parameter (pdcch-DMRS-ScramblingID) is set. Defined by C-RNTI. However, in the embodiment, when the higher layer parameter (pdcch-DMRS-ScramblingID) is set for "CFR used for the GC-PDCCH for MCCH/MTCH", n RNTI is "PDCCH in a UE-specific search space" The application of the statement that it is defined by the C-RNTI for use may be excluded.
  • UE-common search space other than “UE-common search space for GC-PDCCH for MCCH/MTCH for broadcast”
  • specific parameters included in SIB may be used, otherwise shown in FIG. Certain defined parameters may be used.
  • GC-PDSCH UE 200 generates an initial value (c int ) of a specific sequence to be applied to GC-PDSCH based on a specific parameter (n ID ) included in broadcast information (for example, SIB) when a specific condition is satisfied.
  • the specific parameter (n ID ) may be the same value as the upper layer parameter (eg dataScramblingIdentityPDSCH).
  • Higher layer parameters may be included in the SIB.
  • the name of the higher layer parameter included in the SIB may be the same as the name of the higher layer parameter included in the RRC message or CORSET, or may be different from the name of the higher layer parameter included in the RRC message or CORSET. Even if the name of the upper layer parameter included in the SIB and the name of the upper layer parameter included in the RRC message or CORSET are the same, each parameter is used to set/notify different values/contents.
  • Specific conditions may include conditions used in RRC idle or RRC inactive. Specific conditions may include conditions used in GC-PDSCH of MCCH or MTCH. A specific condition may be defined by a combination of these conditions.
  • the UE 200 is included in the SIB as a specific parameter (n ID ) when the upper layer parameter (dataScramblingIdentityPDSCH) is set for "CFR used for the GC-PDSCH for MCCH/MTCH"
  • a higher layer parameter pdsch-DMRS-ScramblingID may be used.
  • n RNTI used as the initial value of the initial value (c int ) of the specific sequence is set to the RNTI associated with GC-PDSCH transmission for “CFR used for the GC-PDSCH for MCCH/MTCH”.
  • RNTIs associated with GC-PDSCH transmissions may be used.
  • nRNTI may be G-RNTI or MCCH-RNTI.
  • DMRS for GC-PDCCH UE 200 when a specific condition is satisfied, based on a specific parameter (N ID ) included in broadcast information (for example, SIB), the initial value (c int ) of the specific sequence to be applied to DMRS for GC-PDCCH.
  • N ID a specific parameter included in broadcast information
  • a specific parameter (N ID ) may be defined in higher layer parameters (eg, pdcch-DMRS-ScramblingID). Higher layer parameters may be included in the SIB.
  • the name of the higher layer parameter included in the SIB may be the same as the name of the higher layer parameter included in the RRC message or CORESET, or may be different from the name of the higher layer parameter included in the RRC message or CORESET. Even if the name of the upper layer parameter included in the SIB and the name of the upper layer parameter included in the RRC message or CORSET are the same, each parameter is used to set/notify different values/contents.
  • Specific conditions may include conditions used in RRC idle or RRC inactive.
  • the specific conditions may include conditions used in GC-PDCCH of MCCH or MTCH.
  • the specific conditions may include conditions used in the UE-common search space for GC-PDCCH.
  • a specific condition may be defined by a combination of these conditions.
  • UE 200 uses a specific parameter (N ID ), an upper layer parameter (pdcch-DMRS-ScramblingID) included in the SIB may be used.
  • N ID a specific parameter
  • pdcch-DMRS-ScramblingID an upper layer parameter included in the SIB
  • pdcch-DMRS-ScramblingID defined in existing specifications (eg, Release 15/16) (hereafter, existing pdcch-DMRS-ScramblingID) and pdcch-DMRS-ScramblingID included in SIB (hereafter, new pdcch-DMRS- ScramblingID) are both defined.
  • a new pdcch-DMRS-ScramblingID may be used without distinguishing between "a UE-common search space" and "a UE-specific search space” (option 1).
  • a new pdcch-DMRS-ScramblingID is used for DMRS for GC-PDCCH related to "a UE-common search space”
  • an existing pdcch-DMRS-ScramblingID is used for DMRS for GC-PDCCH related to "a UE-specific search space”. may be used (option 2).
  • Option 2 uses the same specific parameters as GC-PDCCH for DMRS for GC-PDCCH, so Option 2 operation may be considered desirable.
  • the UE 200 sets the initial value (c int ) of the specific sequence to be applied to the DMRS for GC-PDSCH based on the specific parameter (N ID ) included in the broadcast information (for example, SIB).
  • a specific parameter (N ID ) may be defined in higher layer parameters (eg, scramblingID0).
  • Higher layer parameters may be included in the SIB.
  • the name of the higher layer parameter included in the SIB may be the same as the name of the higher layer parameter included in the RRC message or CORESET, or may be different from the name of the higher layer parameter included in the RRC message or CORESET. Even if the name of the upper layer parameter included in the SIB and the name of the upper layer parameter included in the RRC message or CORSET are the same, each parameter is used to set/notify different values/contents.
  • Specific conditions may include conditions used in RRC idle or RRC inactive. Specific conditions may include conditions used in GC-PDSCH of MCCH or MTCH. Specific conditions may include conditions under which PDSCH is scheduled by PDCCH containing DCI format 1_0 with CRC scrambled by G-RNTI or MCCH-RNTI. A specific condition may be defined by a combination of these conditions.
  • the UE 200 uses the upper layer as the specific parameter (N ID ).
  • a layer parameter (scramblingID0) may be used.
  • the upper layer included in the SIB as a specific parameter (N ID )
  • a parameter (scramblingID0) may be used.
  • a higher layer parameter (scramblingID0) may be included in DMRS-DownlinkConfig.
  • the UE 200 when a specific condition is satisfied, based on a specific parameter included in the broadcast information (for example, SIB), sequences related to MBS (for example, GC-PDCCH, GC- PDSCH, DMRS for GC-PDCCH, DMRS for GC-PDSCH), specifically, the initial value (c int ) of the specific sequence (c i ) is generated.
  • a specific parameter included in the broadcast information for example, SIB
  • sequences related to MBS for example, GC-PDCCH, GC- PDSCH, DMRS for GC-PDCCH, DMRS for GC-PDSCH
  • the initial value (c int ) of the specific sequence (c i ) is generated.
  • Such a configuration clarifies how the RRC idle or RRC inactive UE 200 acquires specific parameters for generating a specific sequence (eg, scrambling sequence, pseudo-random sequence). Therefore, the RRC idle or RRC inactive UE 200 can appropriately identify various sequences related to
  • configure, activate, update, indicate, enable, specify, and select may be read interchangeably.
  • link, associate, correspond, and map may be read interchangeably to allocate, assign, monitor. , map, may also be read interchangeably.
  • each functional block may be realized using one device physically or logically coupled, or directly or indirectly using two or more physically or logically separated devices (e.g. , wired, wireless, etc.) and may be implemented using these multiple devices.
  • a functional block may be implemented by combining software in the one device or the plurality of devices.
  • Functions include judging, determining, determining, calculating, calculating, processing, deriving, investigating, searching, checking, receiving, transmitting, outputting, accessing, resolving, selecting, choosing, establishing, comparing, assuming, expecting, assuming, Broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc. can't
  • a functional block (component) that performs transmission is called a transmitting unit or transmitter.
  • the implementation method is not particularly limited.
  • FIG. 11 is a diagram showing an example of the hardware configuration of the device. As shown in FIG. 11, the device may be configured as a computing 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.
  • the term "apparatus” can be read as a circuit, device, unit, or the like.
  • the hardware configuration of the device may be configured to include one or more of each device shown in the figure, or may be configured without some of the devices.
  • Each functional block of the device (see FIG. 4) is realized by any hardware element of the computer device or a combination of the hardware elements.
  • each function of the device is implemented by causing the processor 1001 to perform calculations, controlling communication by the communication device 1004, and controlling the It is realized by controlling at least one of data reading and writing in 1002 and storage 1003 .
  • a processor 1001 operates an operating system and controls the entire computer.
  • the processor 1001 may be configured by a central processing unit (CPU) including interfaces with peripheral devices, a control unit, an arithmetic unit, registers, and the like.
  • CPU central processing unit
  • the processor 1001 reads programs (program codes), software modules, data, etc. from at least one of the storage 1003 and the communication device 1004 to the memory 1002, and executes various processes according to them.
  • programs program codes
  • software modules software modules
  • data etc.
  • the program a program that causes a computer to execute at least part of the operations described in the above embodiments is used.
  • the above-described various processes may be executed by one processor 1001, or may be executed by two or more processors 1001 simultaneously or sequentially.
  • Processor 1001 may be implemented by one or more chips. Note that the program may be transmitted from a network via an electric communication line.
  • the memory 1002 is a computer-readable recording medium, and is composed of at least one of Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), Random Access Memory (RAM), etc. may be
  • ROM Read Only Memory
  • EPROM Erasable Programmable ROM
  • EEPROM Electrically Erasable Programmable ROM
  • RAM Random Access Memory
  • the memory 1002 may also be called a register, cache, main memory (main storage device), or the like.
  • the memory 1002 can store programs (program code), software modules, etc. capable of executing a method according to an embodiment of the present disclosure.
  • the storage 1003 is a computer-readable recording medium, for example, an optical disc such as a Compact Disc ROM (CD-ROM), a hard disk drive, a flexible disc, a magneto-optical disc (for example, a compact disc, a digital versatile disc, a Blu-ray disk), smart card, flash memory (eg, card, stick, key drive), floppy disk, magnetic strip, and/or the like.
  • Storage 1003 may also be referred to as an auxiliary storage device.
  • the recording medium described above may be, for example, a database, server, or other suitable medium including at least one of memory 1002 and storage 1003 .
  • the communication device 1004 is hardware (transmitting/receiving device) for communicating between computers via at least one of a wired network and a wireless network, and is also called a network device, a network controller, a network card, a communication module, or the like.
  • the communication device 1004 includes a high-frequency switch, duplexer, filter, frequency synthesizer, etc., for realizing at least one of frequency division duplex (FDD) and time division duplex (TDD).
  • FDD frequency division duplex
  • TDD time division duplex
  • the input device 1005 is an input device (for example, keyboard, mouse, microphone, switch, button, sensor, etc.) that receives input from the outside.
  • the output device 1006 is an output device (eg, display, speaker, LED lamp, etc.) that outputs to the outside. Note that the input device 1005 and the output device 1006 may be integrated (for example, a touch panel).
  • each device such as the processor 1001 and the memory 1002 is connected by a bus 1007 for communicating information.
  • the bus 1007 may be configured using a single bus, or may be configured using different buses between devices.
  • the device includes hardware such as a microprocessor, digital signal processor (DSP), application specific integrated circuit (ASIC), programmable logic device (PLD), field programmable gate array (FPGA), etc.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • PLD programmable logic device
  • FPGA field programmable gate array
  • notification of information is not limited to the aspects/embodiments described in the present disclosure, and may be performed using other methods.
  • the notification of information may include physical layer signaling (e.g., Downlink Control Information (DCI), Uplink Control Information (UCI), higher layer signaling (e.g., RRC signaling, Medium Access Control (MAC) signaling, broadcast information (Master Information Block (MIB), System Information Block (SIB), other signals, or a combination thereof
  • RRC signaling may also be referred to as RRC messages, e.g., RRC Connection Setup ) message, RRC Connection Reconfiguration message, or the like.
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • SUPER 3G IMT-Advanced
  • 4G 4th generation mobile communication system
  • 5G 5th generation mobile communication system
  • Future Radio Access FAA
  • New Radio NR
  • W-CDMA registered trademark
  • GSM registered trademark
  • CDMA2000 Code Division Multiple Access 2000
  • UMB Ultra Mobile Broadband
  • IEEE 802.11 Wi-Fi (registered trademark)
  • IEEE 802.16 WiMAX®
  • IEEE 802.20 Ultra-WideBand (UWB), Bluetooth®, other suitable systems, and/or next-generation systems enhanced therefrom.
  • a plurality of systems may be applied in combination (for example, a combination of at least one of LTE and LTE-A and 5G).
  • a specific operation that is performed by a base station in the present disclosure may be performed by its upper node in some cases.
  • various operations performed for communication with a terminal may be performed by the base station and other network nodes other than the base station (e.g. MME or S-GW, etc., but not limited to).
  • MME or S-GW network nodes
  • the case where there is one network node other than the base station is exemplified above, it may be a combination of a plurality of other network nodes (for example, MME and S-GW).
  • Information, signals can be output from a higher layer (or a lower layer) to a lower layer (or a higher layer). It may be input and output via multiple network nodes.
  • Input/output information may be stored in a specific location (for example, memory) or managed using a management table. Input and output information may be overwritten, updated, or appended. The output information may be deleted. The entered information may be transmitted to other devices.
  • the determination may be made by a value represented by one bit (0 or 1), by a true/false value (Boolean: true or false), or by numerical comparison (for example, a predetermined value).
  • notification of predetermined information is not limited to being performed explicitly, but may be performed implicitly (for example, not notifying the predetermined information). good too.
  • Software whether referred to as software, firmware, middleware, microcode, hardware description language or otherwise, includes instructions, instruction sets, code, code segments, program code, programs, subprograms, and software modules. , applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, and the like.
  • software, instructions, information, etc. may be transmitted and received via a transmission medium.
  • the Software uses wired technology (coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.) and/or wireless technology (infrared, microwave, etc.) to access websites, Wired and/or wireless technologies are included within the definition of transmission medium when sent from a server or other remote source.
  • wired technology coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.
  • wireless technology infrared, microwave, etc.
  • data, instructions, commands, information, signals, bits, symbols, chips, etc. may refer to voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these. may be represented by a combination of
  • the channel and/or symbols may be signaling.
  • a signal may also be a message.
  • a component carrier may also be called a carrier frequency, a cell, a frequency carrier, or the like.
  • system and “network” used in this disclosure are used interchangeably.
  • information, parameters, etc. described in the present disclosure may be expressed using absolute values, may be expressed using relative values from a predetermined value, or may be expressed using other corresponding information.
  • radio resources may be indexed.
  • base station BS
  • radio base station fixed station
  • NodeB NodeB
  • eNodeB eNodeB
  • gNodeB gNodeB
  • a base station may also be referred to by terms such as macrocell, small cell, femtocell, picocell, and the like.
  • a base station can accommodate one or more (eg, three) cells (also called sectors). When a base station accommodates multiple cells, the overall coverage area of the base station can be partitioned into multiple smaller areas, each smaller area corresponding to a base station subsystem (e.g., a small indoor base station (Remote Radio)). Head: RRH) can also provide communication services.
  • a base station subsystem e.g., a small indoor base station (Remote Radio)
  • Head: RRH can also provide communication services.
  • cell refers to part or all of the coverage area of at least one of a base station and base station subsystem that provides communication services in this coverage.
  • MS Mobile Station
  • UE User Equipment
  • a mobile station is defined by those skilled in the art as a 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 It may also be called a terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable term.
  • At least one of the base station and mobile station may be called a transmitting device, a receiving device, a communication device, or the like.
  • At least one of the base station and the mobile station may be a device mounted on a mobile object, the mobile object itself, or the like.
  • the mobile object may be a vehicle (e.g., car, airplane, etc.), an unmanned mobile object (e.g., drone, self-driving car, etc.), or a robot (manned or unmanned ).
  • at least one of the base station and the mobile station includes devices that do not necessarily move during communication operations.
  • at least one of the base station and mobile station may be an Internet of Things (IoT) device such as a sensor.
  • IoT Internet of Things
  • the base station in the present disclosure may be read as a mobile station (user terminal, hereinafter the same).
  • communication between a base station and a mobile station is replaced with communication between multiple mobile stations (for example, Device-to-Device (D2D), Vehicle-to-Everything (V2X), etc.)
  • the mobile station may have the functions that the base station has.
  • words such as "up” and “down” may be replaced with words corresponding to inter-terminal communication (for example, "side”).
  • uplink channels, downlink channels, etc. may be read as side channels.
  • a mobile station in the present disclosure may be read as a base station.
  • the base station may have the functions that the mobile station has.
  • a radio frame may consist of one or more frames in the time domain. Each frame or frames in the time domain may be referred to as a subframe.
  • a subframe may further consist of one or more slots in the time domain.
  • a subframe may be a fixed time length (eg, 1 ms) independent of numerology.
  • a numerology may be a communication parameter that applies to the transmission and/or reception of a signal or channel. Numerology, for example, subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame structure, transmission and reception specific filtering operations performed by the receiver in the frequency domain, specific windowing operations performed by the transceiver in the time domain, and/or the like.
  • SCS subcarrier spacing
  • TTI transmission time interval
  • number of symbols per TTI radio frame structure
  • transmission and reception specific filtering operations performed by the receiver in the frequency domain specific windowing operations performed by the transceiver in the time domain, and/or the like.
  • a slot may consist of one or more symbols (Orthogonal Frequency Division Multiplexing (OFDM) symbols, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbols, etc.) in the time domain.
  • OFDM Orthogonal Frequency Division Multiplexing
  • SC-FDMA Single Carrier Frequency Division Multiple Access
  • a slot may be a unit of time based on numerology.
  • a slot may contain multiple mini-slots. Each minislot may consist of one or more symbols in the time domain. A minislot may also be referred to as a subslot. A minislot may consist of fewer symbols than a slot.
  • a PDSCH (or PUSCH) that is transmitted in time units larger than a minislot may be referred to as PDSCH (or PUSCH) mapping type A.
  • PDSCH (or PUSCH) transmitted using minislots may be referred to as PDSCH (or PUSCH) mapping type B.
  • Radio frames, subframes, slots, minislots and symbols all represent time units when transmitting signals. Radio frames, subframes, slots, minislots and symbols may be referred to by other corresponding designations.
  • one subframe may be called a transmission time interval (TTI)
  • TTI transmission time interval
  • TTI transmission time interval
  • TTI transmission time interval
  • one slot or one minislot may be called a TTI. That is, at least one of the subframe and TTI may be a subframe (1ms) in existing LTE, may be a period shorter than 1ms (eg, 1-13 symbols), or a period longer than 1ms may be Note that the unit representing the TTI may be called a slot, minislot, or the like instead of a subframe.
  • TTI refers to, for example, the minimum scheduling time unit in wireless communication.
  • a base station performs scheduling to allocate radio resources (frequency bandwidth, transmission power, etc. that can be used by each user terminal) to each user terminal on a TTI basis.
  • radio resources frequency bandwidth, transmission power, etc. that can be used by each user terminal
  • the TTI may be a transmission time unit for channel-encoded data packets (transport blocks), code blocks, codewords, etc., or may be a processing unit for scheduling, link adaptation, etc. Note that when a TTI is given, the time interval (for example, the number of symbols) in which transport blocks, code blocks, codewords, etc. are actually mapped may be shorter than the TTI.
  • one slot or one minislot is called a TTI
  • one or more TTIs may be the minimum scheduling time unit.
  • the number of slots (the number of mini-slots) constituting the minimum time unit of the scheduling may be controlled.
  • a TTI with a time length of 1 ms may be called a normal TTI (TTI in LTE Rel.8-12), normal TTI, long TTI, normal subframe, normal subframe, long subframe, slot, etc.
  • TTI that is shorter than a normal TTI may also be called a shortened TTI, a short TTI, a partial or fractional TTI, a shortened subframe, a short subframe, a minislot, a subslot, a slot, and so on.
  • long TTI for example, normal TTI, subframe, etc.
  • short TTI for example, shortened TTI, etc.
  • a TTI having a TTI length greater than or equal to this value may be read as a replacement.
  • a resource block is a resource allocation unit in the time domain and frequency domain, and may include one or more consecutive subcarriers in the frequency domain.
  • the number of subcarriers included in an RB may be the same regardless of neurology, and may be 12, for example.
  • the number of subcarriers included in an RB may be determined based on neumerology.
  • the time domain of an RB may include one or more symbols and may be 1 slot, 1 minislot, 1 subframe, or 1 TTI long.
  • One TTI, one subframe, etc. may each be configured with one or a plurality of resource blocks.
  • One or more RBs are 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.
  • a resource block may be composed of one or more resource elements (Resource Element: RE).
  • RE resource elements
  • 1 RE may be a radio resource region of 1 subcarrier and 1 symbol.
  • a Bandwidth Part (which may also be called a Bandwidth Part) represents a subset of contiguous common resource blocks (RBs) for a neumerology in a carrier. good.
  • the common RB may be identified by an RB index based on the common reference point of the carrier.
  • PRBs may be defined in a BWP and numbered within that BWP.
  • BWP may include BWP for UL (UL BWP) and BWP for DL (DL BWP).
  • BWP may include BWP for UL (UL BWP) and BWP for DL (DL BWP).
  • One or more BWPs may be configured in one carrier for the UE.
  • At least one of the configured BWPs may be active, and the UE may not expect to transmit or receive a given signal/channel outside the active BWP.
  • BWP bitmap
  • radio frames, subframes, slots, minislots and symbols described above are only examples.
  • the number of subframes included in a radio frame the number of slots per subframe or radio frame, the number of minislots included in a slot, the number of symbols and RBs included in a slot or minislot, the number of Configurations such as the number of subcarriers and the number of symbols in a TTI, symbol length, cyclic prefix (CP) length, etc.
  • CP cyclic prefix
  • connection means any direct or indirect connection or coupling between two or more elements, It can include the presence of one or more intermediate elements between two elements being “connected” or “coupled.” Couplings or connections between elements may be physical, logical, or a combination thereof. For example, “connection” may be read as "access”.
  • two elements are defined using at least one of one or more wires, cables, and printed electrical connections and, as some non-limiting and non-exhaustive examples, in the radio frequency domain. , electromagnetic energy having wavelengths in the microwave and optical (both visible and invisible) regions, and the like.
  • the reference signal can also be abbreviated as Reference Signal (RS), and may also be called Pilot depending on the applicable standard.
  • RS Reference Signal
  • any reference to elements using the "first”, “second”, etc. designations used in this disclosure does not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Thus, references to first and second elements do not imply that only two elements may be employed therein, or that the first element must precede the second element in any way.
  • determining and “determining” used in this disclosure may encompass a wide variety of actions.
  • “Judgement” and “determination” are, for example, judging, calculating, computing, processing, deriving, investigating, looking up, searching, inquiring (eg, lookup in a table, database, or other data structure), ascertaining as “judged” or “determined”, and the like.
  • "judgment” and “determination” are used for receiving (e.g., receiving information), transmitting (e.g., transmitting information), input, output, access (accessing) (for example, accessing data in memory) may include deeming that a "judgment” or “decision” has been made.
  • judgment and “decision” are considered to be “judgment” and “decision” by resolving, selecting, choosing, establishing, comparing, etc. can contain.
  • judgment and “decision” may include considering that some action is “judgment” and “decision”.
  • judgment (decision) may be read as “assuming”, “expecting”, “considering”, or the like.
  • a and B are different may mean “A and B are different from each other.”
  • the term may also mean that "A and B are different from C”.
  • Terms such as “separate,” “coupled,” etc. may also be interpreted in the same manner as “different.”
  • FIG. 12 shows a configuration example of a vehicle 2001.
  • a vehicle 2001 includes a drive unit 2002, a steering unit 2003, an accelerator pedal 2004, a brake pedal 2005, a shift lever 2006, left and right front wheels 2007, left and right rear wheels 2008, axles 2009, an electronic control unit 2010, It has various sensors 2021 to 2029, an information service unit 2012 and a communication module 2013.
  • the driving unit 2002 is composed of, for example, an engine, a motor, or a hybrid of the engine and the motor.
  • the steering unit 2003 includes at least a steering wheel (also referred to as a steering wheel), and is configured to steer at least one of the front wheels and rear wheels based on the operation of the steering wheel operated by the user.
  • a steering wheel also referred to as a steering wheel
  • the electronic control unit 2010 is composed of a microprocessor 2031, a memory (ROM, RAM) 2032, and a communication port (IO port) 2033. Signals from various sensors 2021 to 2027 provided in the vehicle are input to the electronic control unit 2010 .
  • the electronic control unit 2010 may be called an ECU (Electronic Control Unit).
  • the signals from various sensors 2021 to 2028 include the current signal from the current sensor 2021 that senses the current of the motor, the rotation speed signal of the front and rear wheels obtained by the rotation speed sensor 2022, and the front wheel obtained by the air pressure sensor 2023. and rear wheel air pressure signal, vehicle speed signal obtained by vehicle speed sensor 2024, acceleration signal obtained by acceleration sensor 2025, accelerator pedal depression amount signal obtained by accelerator pedal sensor 2029, brake pedal sensor 2026 obtained by There are a brake pedal depression amount signal, a shift lever operation signal acquired by the shift lever sensor 2027, and a detection signal for detecting obstacles, vehicles, pedestrians, etc. acquired by the object detection sensor 2028, and the like.
  • the information service unit 2012 includes various devices such as car navigation systems, audio systems, speakers, televisions, and radios for providing various information such as driving information, traffic information, and entertainment information, and one or more devices for controlling these devices. It consists of an ECU and The information service unit 2012 uses information acquired from an external device via the communication module 2013 and the like to provide passengers of the vehicle 1 with various multimedia information and multimedia services.
  • Driving support system unit 2030 includes millimeter wave radar, LiDAR (Light Detection and Ranging), camera, positioning locator (e.g. GNSS), map information (e.g. high-definition (HD) map, autonomous vehicle (AV) map, etc. ), gyro systems (e.g., IMU (Inertial Measurement Unit), INS (Inertial Navigation System), etc.), AI (Artificial Intelligence) chips, and AI processors to prevent accidents and reduce the driver's driving load. and one or more ECUs that control these devices.
  • the driving support system unit 2030 transmits and receives various information via the communication module 2013, and realizes a driving support function or an automatic driving function.
  • the communication module 2013 can communicate with the microprocessor 2031 and components of the vehicle 1 via communication ports.
  • the communication module 2013 communicates with the vehicle 2001 through a communication port 2033 a driving unit 2002, a steering unit 2003, an accelerator pedal 2004, a brake pedal 2005, a shift lever 2006, left and right front wheels 2007, left and right rear wheels 2008, Data is sent and received between axle 2009, microprocessor 2031 and memory (ROM, RAM) 2032 in electronic control unit 2010, and sensors 2021-2028.
  • the communication module 2013 is a communication device that can be controlled by the microprocessor 2031 of the electronic control unit 2010 and can communicate with an external device. For example, it transmits and receives various information to and from an external device via wireless communication.
  • Communication module 2013 may be internal or external to electronic control 2010 .
  • the external device may be, for example, a base station, a mobile station, or the like.
  • the communication module 2013 transmits the current signal from the current sensor input to the electronic control unit 2010 to the external device via wireless communication.
  • the communication module 2013 receives, from the electronic control unit 2010, the rotation speed signals of the front and rear wheels obtained by the rotation speed sensor 2022, the air pressure signals of the front and rear wheels obtained by the air pressure sensor 2023, and the vehicle speed sensor. 2024, the acceleration signal obtained by the acceleration sensor 2025, the accelerator pedal depression amount signal obtained by the accelerator pedal sensor 2029, the brake pedal depression amount signal obtained by the brake pedal sensor 2026, and the shift lever.
  • a shift lever operation signal obtained by the sensor 2027 and a detection signal for detecting obstacles, vehicles, pedestrians, etc. obtained by the object detection sensor 2028 are also transmitted to an external device via wireless communication.
  • the communication module 2013 receives various information (traffic information, signal information, inter-vehicle information, etc.) transmitted from external devices and displays it on the information service unit 2012 provided in the vehicle. Communication module 2013 also stores various information received from external devices in memory 2032 available to microprocessor 2031 . Based on the information stored in the memory 2032, the microprocessor 2031 controls the driving unit 2002, the steering unit 2003, the accelerator pedal 2004, the brake pedal 2005, the shift lever 2006, the left and right front wheels 2007, and the left and right rear wheels provided in the vehicle 2001. 2008, axle 2009, sensors 2021-2028, etc. may be controlled.
  • various information traffic information, signal information, inter-vehicle information, etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Multimedia (AREA)
  • Mobile Radio Communication Systems (AREA)
PCT/JP2021/040178 2021-10-29 2021-10-29 端末、基地局及び無線通信方法 Ceased WO2023073973A1 (ja)

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PCT/JP2021/040178 WO2023073973A1 (ja) 2021-10-29 2021-10-29 端末、基地局及び無線通信方法
CN202180103571.6A CN118140586A (zh) 2021-10-29 2021-10-29 终端、基站以及无线通信方法
JP2023556077A JP7747769B2 (ja) 2021-10-29 2021-10-29 端末、基地局及び無線通信方法
EP21962512.6A EP4425969A4 (en) 2021-10-29 2021-10-29 TERMINAL, BASE STATION AND WIRELESS COMMUNICATION METHOD

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JP (1) JP7747769B2 (https=)
CN (1) CN118140586A (https=)
WO (1) WO2023073973A1 (https=)

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
"New Work Item on NR support of Multicast and Broadcast Services", RP-193248, 3GPP TSG RAN MEETING #86, 3GPP, December 2019 (2019-12-01)
NTT DOCOMO, INC.: "Discussion on basic functions for broadcast/multicast for RRC_IDLE/RRC_INACTIVE UEs", 3GPP TSG RAN WG1 #106B-E, R1-2109703, 1 October 2021 (2021-10-01), XP052058642 *
See also references of EP4425969A4

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EP4425969A4 (en) 2025-08-20
JPWO2023073973A1 (https=) 2023-05-04
JP7747769B2 (ja) 2025-10-01
CN118140586A (zh) 2024-06-04
EP4425969A1 (en) 2024-09-04

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