WO2024034084A1 - Terminal, station de base et procédé de communication - Google Patents

Terminal, station de base et procédé de communication Download PDF

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Publication number
WO2024034084A1
WO2024034084A1 PCT/JP2022/030643 JP2022030643W WO2024034084A1 WO 2024034084 A1 WO2024034084 A1 WO 2024034084A1 JP 2022030643 W JP2022030643 W JP 2022030643W WO 2024034084 A1 WO2024034084 A1 WO 2024034084A1
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WO
WIPO (PCT)
Prior art keywords
terminal
signal
positioning
base station
srs
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2022/030643
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English (en)
Japanese (ja)
Inventor
真哉 岡村
大樹 武田
康介 島
浩樹 原田
春陽 越後
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NTT Docomo Inc
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NTT Docomo Inc
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Publication date
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Priority to JP2024540182A priority Critical patent/JPWO2024034084A1/ja
Priority to PCT/JP2022/030643 priority patent/WO2024034084A1/fr
Publication of WO2024034084A1 publication Critical patent/WO2024034084A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management

Definitions

  • the present invention relates to a terminal, a base station, and a communication method in a wireless communication system.
  • NR New Radio
  • 5G 3rd Generation Partnership Project
  • 5G 5G
  • NR New Radio
  • 5G various wireless technologies and network architectures are being studied in order to meet the requirements of achieving a throughput of 10 Gbps or more while reducing the delay in the wireless section to 1 ms or less.
  • a positioning method for example, there is a method in which a terminal transmits uplink (UL) reference signals (UL-PRS) to a plurality of base stations and performs positioning based on the time difference in reception timing.
  • UL-PRS uplink reference signals
  • Non-Patent Document 1 when the UL-PRS collides with another DL/UL signal, the UL-PRS is dropped. However, if UL-PRS is dropped, highly accurate positioning may not be possible.
  • the present invention has been made in view of the above points, and an object of the present invention is to provide a technology that enables highly accurate positioning even when an uplink reference signal for positioning collides with another signal. With the goal.
  • the control determines to drop the specific signal.
  • a transmitting unit that transmits the uplink reference signal; A terminal is provided.
  • a technology that makes it possible to perform highly accurate positioning even when an uplink reference signal for positioning collides with another signal.
  • FIG. 1 is a diagram for explaining a wireless communication system in an embodiment of the present invention.
  • FIG. 1 is a diagram for explaining a wireless communication system in an embodiment of the present invention.
  • FIG. 7 is a diagram for explaining an example of operation in the 0th embodiment.
  • FIG. 3 is a diagram for explaining an example of operation in the first embodiment.
  • FIG. 7 is a diagram for explaining an example of operation in a third embodiment.
  • FIG. 7 is a diagram for explaining an example of operation in a fourth embodiment.
  • It is a diagram showing an example of the configuration of the base station 10 (LMF 30).
  • 2 is a diagram showing a configuration example of a terminal 20.
  • FIG. It is a diagram showing an example of the hardware configuration of base station 10, terminal 20, or LMF 30 in an embodiment of the present invention.
  • 1 is a diagram showing an example of the configuration of a vehicle.
  • Existing technologies are used as appropriate for the operation of the wireless communication system according to the embodiment of the present invention.
  • the existing technology is, for example, existing LTE or existing NR, but is not limited to existing LTE or NR.
  • the SS Synchronization signal
  • PSS Primary SS
  • SSS Secondary SS
  • PBCH Physical broadcast channel
  • PRACH Physical broadcast channel
  • PDCCH Physical Downlink Control Channel
  • PDSCH Physical Downlink Shared Channel
  • PUCCH Physical Uplink Control Channel
  • PUSCH Physical Uplink Shared Channel
  • the duplex method may be a TDD (Time Division Duplex) method, an FDD (Frequency Division Duplex) method, or another method (for example, Flexible Duplex, etc.). This method may also be used.
  • configure the wireless parameters etc. may mean pre-configuring a predetermined value, or may mean that the base station 10 or Wireless parameters notified from the terminal 20 may also be set.
  • FIG. 1 is a diagram showing a configuration example (1) of a wireless communication system according to an embodiment of the present invention.
  • a wireless communication system according to an embodiment of the present invention includes a base station 10 and a terminal 20, as shown in FIG.
  • an LMF (Location Management Function) 30 is shown as an example of a network device.
  • the LMF 30 may also be called a position management device.
  • LMF 30 includes a function of calculating the position of a terminal based on measurement results from terminal 20 or base station 10.
  • the LMF 30 includes a function of transmitting support information (assistance data) to the base station 10 and the like.
  • one base station 10 and one terminal 20 are shown in FIG. 1, this is just an example, and there may be a plurality of each.
  • transmission from the base station 10 to the terminal 20 may be replaced with transmission from the LMF 30 to the terminal 20.
  • the base station 10 is a communication device that provides one or more cells and performs wireless communication with the terminal 20.
  • the physical resources of a radio signal are defined in the time domain and the frequency domain, and the time domain may be defined by the number of OFDM (Orthogonal Frequency Division Multiplexing) symbols, and the frequency domain may be defined by the number of subcarriers or resource blocks. Good too.
  • Base station 10 transmits a synchronization signal and system information to terminal 20.
  • the synchronization signals are, for example, NR-PSS and NR-SSS.
  • System information is transmitted, for example, on NR-PBCH, and is also referred to as broadcast information.
  • the synchronization signal and system information may be called SSB (SS/PBCH block). As shown in FIG.
  • the base station 10 transmits a control signal or data to the terminal 20 on the DL (Downlink), and receives the control signal or data from the terminal 20 on the UL (Uplink). Both the base station 10 and the terminal 20 can perform beamforming to transmit and receive signals. Further, both the base station 10 and the terminal 20 can apply MIMO (Multiple Input Multiple Output) communication to DL or UL. Further, both the base station 10 and the terminal 20 may communicate via a secondary cell (SCell) and a primary cell (PCell) using CA (Carrier Aggregation). Furthermore, the terminal 20 may communicate via a primary cell of the base station 10 and a primary SCG cell (PSCell) of another base station 10 using DC (Dual Connectivity).
  • SCell secondary cell
  • PCell primary cell
  • DC Direct Connectivity
  • the terminal 20 is a communication device equipped with a wireless communication function, such as a smartphone, a mobile phone, a tablet, a wearable terminal, or a communication module for M2M (Machine-to-Machine). As shown in FIG. 1, the terminal 20 receives control signals or data from the base station 10 via DL, and transmits control signals or data to the base station 10 via UL, thereby receiving various types of information provided by the wireless communication system. Use communication services. Furthermore, the terminal 20 receives various reference signals transmitted from the base station 10, and measures the channel quality based on the reception results of the reference signals.
  • a wireless communication function such as a smartphone, a mobile phone, a tablet, a wearable terminal, or a communication module for M2M (Machine-to-Machine).
  • M2M Machine-to-Machine
  • the terminal 20 is capable of performing carrier aggregation in which multiple cells (multiple CCs (Component Carriers)) are bundled to communicate with the base station 10.
  • multiple CCs Component Carriers
  • carrier aggregation one PCell (Primary cell) and one or more SCells (Secondary cells) are used.
  • SCells Secondary cells
  • PUCCH-SCell with PUCCH may be used.
  • FIG. 2 is a diagram for explaining an example (2) of a wireless communication system according to an embodiment of the present invention.
  • FIG. 2 shows an example of the configuration of a wireless communication system when dual connectivity (DC) is implemented.
  • a base station 10A serving as an MN (Master Node) and a base station 10B serving as an SN (Secondary Node) are provided.
  • Base station 10A and base station 10B are each connected to a core network.
  • Terminal 20 can communicate with both base station 10A and base station 10B.
  • the cell group provided by the base station 10A, which is an MN, is called an MCG (Master Cell Group), and the cell group provided by the base station 10B, which is an SN, is called an SCG (Secondary Cell Group).
  • MCG Master Cell Group
  • SCG Secondary Cell Group
  • the MCG is composed of one PCell and one or more SCells
  • the SCG is composed of one PSCell (Primary SCG Cell) and one or more SCells.
  • the processing operations in this embodiment may be executed with the system configuration shown in FIG. 1, may be executed with the system configuration shown in FIG. 2, or may be executed with a system configuration other than these.
  • SRS for positioning which is an existing UL-PRS
  • transmission in the RRC_INACTIVE state is supported in Rel-17 (for example, Non-Patent Document 1).
  • SRS for positioning collides with another DL/UL signal on the same symbol
  • the SRS for positioning transmission will be dropped.
  • highly accurate positioning may not be possible.
  • the present embodiment employs a priority rule for transmitting SRS for positioning with priority over other DL/UL signals.
  • the first embodiment is referred to as the "0th embodiment” because it is a high-level proposal.
  • “/” means “or” unless otherwise specified or unless it is clear from the context that it has a different meaning.
  • Tx means transmission
  • Rx means reception.
  • DL/UL signal (DL/UL signal) includes “DL/UL channel” (DL/UL channel).
  • the terminal 20 assumes SRS for positioning Tx, which has a higher priority than other DL/UL signals.
  • the terminal 20 assumes that the Rx/Tx priority rules for SRS for positioning and other DL/UL signals are uniquely defined in the specifications.
  • Third embodiment It is assumed that the terminal 20 is notified of resources to which the Rx/Tx priority rule of SRS for positioning and other DL/UL signals is applied.
  • the terminal 20 reports the UE capability regarding the Rx/Tx priority rule of SRS for positioning and other DL/UL signals to the NW.
  • any one or more of the zeroth to fourth embodiments can be implemented in any combination. Each embodiment will be described in detail below. Note that in the zeroth to fourth embodiments, it is assumed that the operation related to SRS for positioning of the terminal 20 is an operation when the terminal 20 is in the RRC_INACTIVE state. However, as will be described later, the techniques according to the zeroth to fourth embodiments can also be applied to RRC_IDLE or RRC_CONNECTED.
  • SRS for positioning is used as an example of UL-PRS, but UL signals other than SRS for positioning (e.g. SRS for MIMO, PTRS, DMRS ) may be used.
  • DL-PRS downlink positioning signals
  • SRS for positioning also UL-PRS
  • DL-PRS downlink positioning signals
  • the terminal 20 assumes SRS for positioning Tx, which has a higher priority than other DL/UL signals.
  • the terminal 20 when the terminal 20 detects that SRS for positioning collides with another DL/UL signal with a lower priority than SRS for positioning, it transmits SRS for positioning and drops the other DL/UL signal. do.
  • the base station 10 receives the transmitted SRS for positioning and, for example, notifies the LMF 30 of information on the reception timing of the SRS for positioning.
  • dropping a UL signal means ⁇ creating information to be transmitted as a UL signal, but not transmitting it wirelessly'' or ⁇ not creating information to be transmitted as a UL signal.'' Including things such as. Dropping a DL signal includes "not monitoring/receiving a DL signal” and “monitoring/receiving a DL signal but not demodulating/decoding".
  • DL signals with lower priority than SRS for positioning include, for example, PDCCH, PDSCH, CSI-RS, and SSB.
  • UL signals having a lower priority than SRS for positioning include, for example, PUCCH and PUSCH.
  • the terminal 20 when the terminal 20 detects that SRS for positioning collides with another DL/UL signal that has a higher priority than SRS for positioning, it drops SRS for positioning and transmits the other DL/UL signal.
  • the terminal 20 drops SRS for positioning, it drops it in symbol units, SRS for positioning resource units, or slot/subframe units. These drop units may be defined in the specifications, or may be notified from the base station 10 to the terminal 20 using RRC/MAC-CE/DCI.
  • the terminal 20 may assume that enable/disable of the Rx/Tx priority rule is notified by RRC/MAC-CE/DCI.
  • ⁇ Operation example> An example of operation in the 0th embodiment will be described with reference to FIG. 3. It is assumed that SRS for positioning resources and Rx/Tx priority rules have been set in the terminal 20 at the stage before S101.
  • resources for SRS for positioning for example, the number of symbols, the number of resource blocks, frequency position, period in case of periodic transmission, etc. are set. Note that in the case of aperiodic transmission, the terminal 20 transmits SRS for positioning using the configured resources in accordance with an instruction (request) from the base station 10 (or LMF 30).
  • the terminal 20 determines that a collision has occurred between the SRS for positioning and another DL/UL signal. Collision between SRS for positioning and other DL/UL signals occurs when, for example, all or part of the transmitted symbols of SRS for positioning overlap with all or part of the received/transmitted symbols of other DL/UL signals. (overlap), and all or part of the transmission frequency band of SRS for positioning overlaps (overlaps) all or part of the reception/transmission frequency band of other DL/UL signals.
  • All or part of the transmitted symbols of SRS for positioning may be all or part of the received/transmitted symbols of other DL/UL signals. It may be determined that a collision has occurred if the
  • a collision will occur if reception/transmission of another DL/UL signal is scheduled for a symbol at a certain transmission timing.
  • SRS for positioning based on transmission instructions for example, collisions may occur if the timing of reception/transmission of other periodic DL/UL signals overlaps in the symbol at the timing of SRS for positioning transmission in response to a transmission instruction. Occur.
  • S103 determines to transmit SRS for positioning and drop other DL/UL signals, and transmits SRS for positioning.
  • the Rx/Tx priority rule may be any rule. For example, information explicitly describing the priority of SRS for positioning and one or more other DL/UL signals may be notified as an Rx/Tx priority rule. In this case, when the terminal 20 detects that a collision has occurred between SRS for positioning and other DL/UL signals, it drops the one with the lower priority. Further, the Rx/Tx priority rule may be notified using any of RRC/MAC-CE/DCI.
  • the base station 10 may notify the terminal 20 of the Rx/Tx priority state regarding SRS for positioning and other DL/UL signals using either RRC/MAC-CE/DCI. That is, the Rx/Tx priority state may be notified as the Rx/Tx priority rule. For example, there are the following three Rx/Tx priority states.
  • Priority state.1 SRS for positioning is higher priority than other DL/UL signal Priority state.
  • SRS for positioning is higher priority than other DL/UL signal excluding specific signal Priority state.
  • SRS for positioning is lower priority than other DL/UL signal Priority state.1 indicates that "SRS for positioning has higher priority than other DL/UL signals.”
  • Priority state.2 indicates that "SRS for positioning has higher priority than other DL/UL signals except for specific signals.”
  • the specific signal may be uniquely defined by the specifications, or may be set in the terminal 20 by RRC. Specific signals are, for example, SSB and PDCCH.
  • Priority state.3 indicates that "SRS for positioning has lower priority than other DL/UL signals.”
  • the terminal 20 receives the Rx/Tx priority rule from the base station 10.
  • the terminal 20 detects a collision between the SRS for positioning and another DL/UL signal.
  • the terminal 20 transmits SRS for positioning in S203.
  • the terminal 20 assumes that the Rx/Tx priority rules for SRS for positioning and other DL/UL signals are uniquely defined in the specifications. Specifically, an Rx/Tx priority rule defined in the specifications is set in advance in the terminal 20. Examples 1 to 3 will be described below as examples of the operation of the terminal 20 according to the Rx/Tx priority rule.
  • the terminal 20 determines the priority based on the SDT (Small Data Transmission) type of the DL/UL signal.
  • SDT Small Data Transmission
  • Small Data Transmission is data transmission in the RRC_INACTIVE state, and is data transmission that can be performed without establishing a connection.
  • Examples of SDT include CG-SDT (Configured Grant-based Small Data Transmission) and RA-SDT (Random Access-based Small Data Transmission).
  • the terminal 20 when the terminal 20 detects that SRS for positioning and another DL/UL signal collide in the RRC_INACTIVE state, it drops SRS for positioning if the other DL/UL signal is CG-SDT. Note that instead of this, if the other DL/UL signal is CG-SDT, the other DL/UL signal may be dropped.
  • the terminal 20 when the terminal 20 detects that SRS for positioning and another DL/UL signal collide in the RRC_INACTIVE state, it drops SRS for positioning if the other DL/UL signal is RA-SDT. Note that instead of this, if the other DL/UL signal is RA-SDT, the other DL/UL signal may be dropped.
  • the terminal 20 determines the priority depending on the type of DL/UL signal. For example, when the terminal 20 detects that SRS for positioning and PDCCH collide in the RRC_INACTIVE state, it drops SRS for positioning.
  • the terminal 20 when the terminal 20 detects that SRS for positioning and PUSCH collide in the RRC_INACTIVE state, it drops PUSCH.
  • the terminal 20 when the terminal 20 detects that SRS for positioning and other DL/UL signals collide in the RRC_INACTIVE state, it drops the other DL/UL signals except for SSB. That is, when the terminal 20 detects that SRS for positioning and SSB collide in the RRC_INACTIVE state, it drops SRS for positioning.
  • Example 2 The above operation in Example 2 is an example. The following operations may be performed assuming specifications different from those assumed above.
  • the terminal 20 when the terminal 20 detects that SRS for positioning and PDCCH collide in the RRC_INACTIVE state, it drops the PDCCH.
  • the terminal 20 when the terminal 20 detects that SRS for positioning and PUSCH collide in the RRC_INACTIVE state, it drops SRS for positioning.
  • the terminal 20 when the terminal 20 detects that SRS for positioning and SSB collide in the RRC_INACTIVE state, it drops the SSB.
  • the terminal 20 determines the priority depending on the type of SRS for positioning. For example, in the RRC_INACTIVE state, if the terminal 20 detects that SRS for positioning and another DL/UL signal collide, it will drop SRS for positioning. Further, the terminal 20 drops other DL/UL signals if the SRS for positioning is an Aperiodic type (ie, AP-SRS for positioning).
  • DL/UL signals may be specified in the specifications for each signal such as PDCCH and PUCCH.
  • other DL/UL signals may be specified in the specification without applying the Priority rule (that is, always prioritized over SRS for positioning).
  • the technology according to the second embodiment described above enables SRS for positioning transmission with priority over other DL/UL signals without any signaling overhead.
  • the third embodiment is implemented in combination with any one, any plurality, or all of the zeroth to second embodiments.
  • the Rx/Tx priority rule assumed in the third embodiment is the Rx/Tx priority rule explained in the zeroth to second embodiments.
  • the Rx/Tx priority rule assumed in the third embodiment is an Rx/Tx priority rule other than the Rx/Tx priority rule explained in the zeroth to second embodiments. Good too.
  • the "resource” is the CC/BWP index or the SRS for positioning resource(set) index.
  • a window to which the Rx/Tx priority rule is applied is set from the base station 10 to the terminal 20.
  • a "resource” is a resource within that window.
  • window is assumed to be a time window.
  • the window is not limited to this, and the window may be a frequency window or a time/frequency window. window may be called "UL-PPW (PRS Processing Window)".
  • the base station 10 notifies the terminal 20 of UL-PPW parameters (example units: slot#, subframe#, ms) as "resources.”
  • Examples of UL-PPW parameters include Start position, end position, length, and periodicity. As the notification contents of the UL-PPW parameters, "Start position, end position, and periodicity" may be notified, or “Start position, length, and periodicity” may be notified.
  • X UL-PPWs are set in RRC, and Y (Y ⁇ X) UL-PPWs are activated/indicated in MAC-CE/DCI. good.
  • X and Y may be defined in the specifications, or may be set from the base station 10 to the terminal 20.
  • the base station 10 notifies the terminal 20 of resources to which SRS for positioning and Rx/Tx priority rules for other DL/UL signals are applied.
  • the terminal 20 detects a collision between the SRS for positioning and another DL/UL signal.
  • the terminal 20 performs an operation according to the notified resource.
  • the terminal 20 determines the Rx/Tx priority rule (for example, Priority state). Apply 1) and drop other DL/UL signals.
  • the terminal 20 detects a collision between SRS for positioning and other DL/UL signals within the window identified by "Start position1, end position1, and periodicity1".
  • the terminal 20 executes the Rx/Tx priority rule ( For example, apply Priority state.1) and drop other DL/UL signals.
  • the terminal 20 uses SRS for positioning and other DL outside the window identified by “Start position1, end position1, and periodicity1”. If a collision of /UL signal is detected, in S303, the terminal 20 performs an operation according to a rule determined by default without applying the Rx/Tx priority rule (for example, drops SRS for positioning).
  • SRS for positioning can be transmitted with priority over other DL/UL signals only for truly necessary resources.
  • the terminal 20 reports UE capability (terminal capability information) regarding the Rx/Tx priority rule of SRS for positioning and other DL/UL signals to the NW (base station 10 or LMF 30).
  • the terminal 20 transmits UE capability to the base station 10.
  • the base station 10 transmits to the terminal 20 configuration information/instruction information according to the capabilities of the terminal 20.
  • the setting information/instruction information sent to the terminal 20 in S402 is, for example, one of the Rx/Tx priority rule, resource, activate/indicate, and enable/disable described in the zeroth to third embodiments. It's small. For example, only when the terminal 20 transmits UE capability indicating that it supports UL-PPW in RRC_INACTIVE, the base station 10 notifies the terminal 20 of the UL-PPW.
  • the UE capability transmitted from the terminal 20 in S401 is, for example, any one, any plurality, or all of the following (1) to (5).
  • Capability information regarding UL-PPW configuration e.g. maximum number of pre-configured UL-PPWs (maximum number of X in the third embodiment), maximum number of active UL-PPWs (maximum number of Y in the third embodiment) number).
  • Parameters indicating the frequency range that supports UL-PPW in RRC_INACTIVE e.g. "FR1 only/FR2 only/both FR1 and FR2", maximum number of CCs, "inside initial BWP/outside initial BWP").
  • the Rx/Tx priority of SRS for positioning and other DL/UL signals can be flexibly set according to the terminal capability.
  • the techniques according to the zeroth to fourth embodiments may be applied not only to the terminal 20 in the RRC_INACTIVE state but also to the terminal 20 in the RRC_IDLE/CONNECTED state. That is, in the zeroth to fourth embodiments, "RRC_INACTIVE state” may be read as “RRC_IDLE state” or "RRC_CONNECTED”.
  • SRS for positioning Rx/Tx priority rule, UL-PPW, and UE capability may be specified for RRC_INACTIVE, RRC_IDLE, and RRC_CONNECTED, respectively.
  • Different priority rules may be applied for each RRC state. For example, in each RRC state of RRC_CONNECTED, RRC_INACTIVE, and RRC_IDLE, if the RRC parameter of the priority rule is present (if it exists), the terminal 20 applies that priority rule in that RRC state.
  • the terminal 20 when there is a corresponding UE capability, if the RRC state of RRC_CONNECTED, RRC_INACTIVE, or RRC_IDLE is absent, and the RRC parameter of the priority rule is absent (if it does not exist), the terminal 20 , in that RRC state, apply the same priority rule as in other RRC states.
  • the terminal 20 may assume the priority of the RRC states to be applied to the RRC state in which the RRC parameter in the priority rule is absent. .
  • the terminal 20 determines the RRC state to which the priority rule is applied to the absent RRC state in the priority order shown in “[high priority] RRC_CONNECTED > RRC_INACTIVE > RRC_IDLE [low priority]”.
  • the terminal 20 applies the priority rule of RRC_CONNECTED, which has a higher priority, to RRC_INACTIVE.
  • the RRC state to be applied to the absent RRC state may be uniquely defined.
  • the terminal 20 applies the priority rule of RRC_CONNECTED(present) to the RRC state of absent.
  • FIG. 7 is a diagram showing an example of the functional configuration of the base station 10.
  • base station 10 includes a transmitting section 110, a receiving section 120, a setting section 130, and a control section 140.
  • the functional configuration shown in FIG. 7 is only an example. As long as the operations according to the embodiments of the present invention can be executed, the functional divisions and functional parts may have any names.
  • the transmitting section 110 and the receiving section 120 may be collectively referred to as a communication section.
  • the transmitting unit 110 includes a function of generating a signal to be transmitted to the terminal 20 side and transmitting the signal wirelessly.
  • the transmitter 110 can also transmit a signal to a network device such as the LMF 30.
  • the receiving unit 120 includes a function of receiving various signals transmitted from the terminal 20 and acquiring, for example, information on a higher layer from the received signals.
  • the receiving unit 120 can also receive signals from a network device such as the LMF 30.
  • the transmitter 110 has a function of transmitting NR-PSS, NR-SSS, NR-PBCH, DL/UL control signals, DCI using PDCCH, data using PDSCH, etc. to the terminal 20.
  • the setting unit 130 stores preset setting information and various setting information to be sent to the terminal 20 in a storage device included in the setting unit 130, and reads them from the storage device as necessary.
  • the control unit 140 schedules DL reception or UL transmission of the terminal 20 via the transmission unit 110. Further, the control unit 140 includes a function to perform LBT. A functional unit related to signal transmission in the control unit 140 may be included in the transmitting unit 110, and a functional unit related to signal reception in the control unit 140 may be included in the receiving unit 120. Further, the transmitting section 110 may be called a transmitter, and the receiving section 120 may be called a receiver.
  • the LMF 30 may also have the configuration shown in FIG. 7.
  • the transmitter 110 transmits signals to other network devices (including base stations), and the receiver 120 receives signals from other network devices (including base stations). do.
  • FIG. 8 is a diagram showing an example of the functional configuration of the terminal 20.
  • the terminal 20 includes a transmitting section 210, a receiving section 220, a setting section 230, and a control section 240.
  • the functional configuration shown in FIG. 8 is only an example. As long as the operations according to the embodiments of the present invention can be executed, the functional divisions and functional parts may have any names.
  • the transmitting section 210 and the receiving section 220 may be collectively referred to as a communication section.
  • the transmitter 210 creates a transmission signal from the transmission data and wirelessly transmits the transmission signal.
  • the receiving unit 220 wirelessly receives various signals and obtains higher layer signals from the received physical layer signals. Further, the receiving unit 220 has a function of receiving NR-PSS, NR-SSS, NR-PBCH, DL/UL/SL control signals, DCI by PDCCH, data by PDSCH, etc. transmitted from the base station 10. Further, for example, the transmitter 210 transmits a PSCCH (Physical Sidelink Control Channel), a PSSCH (Physical Sidelink Shared Channel), a PSDCH (PSDCH) to another terminal 20 as D2D communication. Physical Sidelink Discovery Channel), PSBCH (Physical Sidelink Broadcast Channel) etc., and the receiving unit 220 may receive the PSCCH, PSSCH, PSDCH, PSBCH, etc. from the other terminal 20.
  • PSCCH Physical Sidelink Control Channel
  • PSSCH Physical Sidelink Shared Channel
  • PSDCH Physical Sidelink Broadcast Channel
  • the setting unit 230 stores various types of setting information received from the base station 10 or other terminals by the receiving unit 220 in a storage device included in the setting unit 230, and reads the information from the storage device as necessary.
  • the setting unit 230 also stores setting information that is set in advance.
  • the control unit 240 controls the terminal 20.
  • a functional unit related to signal transmission in the control unit 240 may be included in the transmitting unit 210, and a functional unit related to signal reception in the control unit 240 may be included in the receiving unit 220.
  • the transmitter 210 may be called a transmitter, and the receiver 220 may be called a receiver.
  • the present embodiment provides at least the following terminal, base station, and communication method.
  • a control unit that determines to drop the specific signal when an uplink reference signal for positioning collides with a specific signal having a lower priority than the uplink reference signal; and the uplink reference signal.
  • a transmitter that transmits
  • a terminal equipped with further comprising a receiving unit that receives a priority rule between the uplink reference signal and other signals from a base station, When the uplink reference signal and the other signal collide, the control unit determines which signal to drop from among the uplink reference signal and the other signal based on the priority rule.
  • the control unit When the uplink reference signal and another signal collide, the control unit is configured to perform a transmission based on the small data transmission type of the other signal, the type of the other signal, or the type of the uplink reference signal. , determines which signal to drop out of the uplink reference signal and the other signal.
  • Supplementary Note 1 When the uplink reference signal and the other signal collide, the control unit determines which signal to drop from the uplink reference signal and the other signal based on the resource. The terminal described in any one of 3 to 3.
  • a transmitting unit that notifies a terminal of resources to which a priority rule between an uplink reference signal for positioning and other signals is applied;
  • a receiving unit receives from the terminal the uplink reference signal that is determined to be transmitted based on the resource. base station.
  • an uplink reference signal for positioning collides with a specific signal having a lower priority than the uplink reference signal, deciding to drop the specific signal; transmitting the uplink reference signal; A communication method performed by a terminal.
  • Supplementary Notes 1 to 6 provides a technique that enables highly accurate positioning even when an uplink reference signal for positioning collides with another signal.
  • priority rules for uplink reference signals and other signals for positioning can be flexibly set.
  • Supplementary Note 3 it becomes possible to transmit an uplink reference signal for positioning with priority over other signals without any signaling overhead.
  • uplink reference signals for positioning can be transmitted with priority over other signals only for truly necessary resources.
  • each functional block may be realized using one physically or logically coupled device, or may be realized using two or more physically or logically separated devices directly or indirectly (e.g. , wired, wireless, etc.) and may be realized using a plurality of these devices.
  • the functional block may be realized by combining software with the one device or the plurality of devices.
  • Functions include judgment, decision, judgment, calculation, calculation, processing, derivation, investigation, exploration, confirmation, reception, transmission, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, consideration, These include, but are not limited to, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, and assigning. I can't.
  • a functional block (configuration unit) that performs transmission is called a transmitting unit or a transmitter. In either case, as described above, the implementation method is not particularly limited.
  • the base station 10, terminal 20, etc. in an embodiment of the present disclosure may function as a computer that performs processing of the wireless communication method of the present disclosure.
  • FIG. 9 is a diagram illustrating an example of the hardware configuration of the base station 10, the terminal 20, and the LMF 30 according to an embodiment of the present disclosure.
  • the base station 10 and terminal 20 described above are physically configured as a computer device including a processor 1001, a storage device 1002, an auxiliary storage device 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, etc. Good too.
  • the word “apparatus” can be read as a circuit, a device, a unit, etc.
  • the hardware configuration of the base station 10 and the terminal 20 may be configured to include one or more of each device shown in the figure, or may be configured not to include some of the devices.
  • Each function in the base station 10 and the terminal 20 is performed by loading predetermined software (programs) onto hardware such as the processor 1001 and the storage device 1002, so that the processor 1001 performs calculations and controls communication by the communication device 1004. This is realized by controlling at least one of reading and writing data in the storage device 1002 and the auxiliary storage device 1003.
  • the processor 1001 for example, operates an operating system to control the entire computer.
  • the processor 1001 may be configured with a central processing unit (CPU) that includes interfaces with peripheral devices, a control device, an arithmetic device, registers, and the like.
  • CPU central processing unit
  • control unit 140, control unit 240, etc. may be implemented by the processor 1001.
  • the processor 1001 reads programs (program codes), software modules, data, etc. from at least one of the auxiliary storage device 1003 and the communication device 1004 to the storage device 1002, and executes various processes in accordance with these.
  • programs program codes
  • the control unit 140 of the base station 10 shown in FIG. 7 may be realized by a control program stored in the storage device 1002 and operated on the processor 1001.
  • the control unit 240 of the terminal 20 shown in FIG. 8 may be realized by a control program stored in the storage device 1002 and operated on the processor 1001.
  • Processor 1001 may be implemented by one or more chips. Note that the program may be transmitted from a network via a telecommunications line.
  • the storage device 1002 is a computer-readable recording medium, such as at least one of ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically Erasable Programmable ROM), RAM (Random Access Memory), etc. may be configured.
  • the storage device 1002 may be called a register, cache, main memory, or the like.
  • the storage device 1002 can store executable programs (program codes), software modules, and the like to implement a communication method according to an embodiment of the present disclosure.
  • the auxiliary storage device 1003 is a computer-readable recording medium, such as an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, a magneto-optical disk (for example, a compact disk, a digital versatile disk, a Blu-ray disk, etc.). -ray disk), smart card, flash memory (eg, card, stick, key drive), floppy disk, magnetic strip, etc.
  • the above-mentioned storage medium may be, for example, a database including at least one of the storage device 1002 and the auxiliary storage device 1003, a server, or other suitable medium.
  • the communication device 1004 is hardware (transmission/reception device) for communicating between computers via at least one of a wired network and a wireless network, and is also referred to as, for example, a network device, network controller, network card, communication module, etc.
  • 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 composed of.
  • FDD frequency division duplex
  • TDD time division duplex
  • the transmitting/receiving unit may be physically or logically separated into a transmitting unit and a receiving unit.
  • the input device 1005 is an input device (eg, keyboard, mouse, microphone, switch, button, sensor, etc.) that accepts input from the outside.
  • the output device 1006 is an output device (for example, a display, a speaker, an LED lamp, etc.) that performs output to the outside. Note that the input device 1005 and the output device 1006 may have an integrated configuration (for example, a touch panel).
  • each device such as the processor 1001 and the storage device 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 for each device.
  • the base station 10, the terminal 20, and the LMF 30 are equipped with a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), a field programmable gate array (FPGA), etc. It may be configured to include hardware, and a part or all of each functional block may be realized by the hardware. For example, processor 1001 may be implemented using at least one of these hardwares.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • PLD programmable logic device
  • FPGA field programmable gate array
  • the vehicle 2001 may be equipped with the terminal 20, the base station 10, or the LMF 30.
  • FIG. 10 shows an example of the configuration of vehicle 2001.
  • the vehicle 2001 includes a drive unit 2002, a steering unit 2003, an accelerator pedal 2004, a brake pedal 2005, a shift lever 2006, a front wheel 2007, a rear wheel 2008, an axle 2009, an electronic control unit 2010, and various sensors 2021 to 2029. , an information service section 2012 and a communication module 2013.
  • the terminal 20 or base station 10 according to each aspect/embodiment described in this disclosure may be applied to a communication device mounted on the vehicle 2001, for example, may be applied to the communication module 2013.
  • the drive unit 2002 is composed of, for example, an engine, a motor, or a hybrid of an engine and a 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 the rear wheels based on the operation of the steering wheel operated by the user.
  • the electronic control unit 2010 is composed of a microprocessor 2031, memory (ROM, RAM) 2032, and communication port (IO port) 2033. Signals from various sensors 2021 to 2029 provided in the vehicle 2001 are input to the electronic control unit 2010.
  • the electronic control unit 2010 may also be called an ECU (Electronic Control Unit).
  • Signals from various sensors 2021 to 2029 include a current signal from a current sensor 2021 that senses the motor current, a front wheel and rear wheel rotation speed signal obtained by a rotation speed sensor 2022, and a front wheel rotation speed signal obtained by an air pressure sensor 2023. and rear wheel air pressure signals, vehicle speed signals acquired by vehicle speed sensor 2024, acceleration signals acquired by acceleration sensor 2025, accelerator pedal depression amount signals acquired by accelerator pedal sensor 2029, and brake pedal sensor 2026. These include a brake pedal depression amount signal, a shift lever operation signal acquired by the shift lever sensor 2027, a detection signal for detecting obstacles, vehicles, pedestrians, etc. acquired by the object detection sensor 2028, and the like.
  • the information service department 2012 controls various devices such as car navigation systems, audio systems, speakers, televisions, and radios that provide (output) various information such as driving information, traffic information, and entertainment information, and these devices. It is composed of one or more ECUs.
  • the information service unit 2012 provides various multimedia information and multimedia services to the occupants of the vehicle 2001 using information acquired from an external device via the communication module 2013 and the like.
  • the information service department 2012 may include an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, a touch panel, etc.) that accepts input from the outside, and an output device that performs output to the outside (for example, display, speaker, LED lamp, touch panel, etc.).
  • the driving support system unit 2030 includes a millimeter wave radar, LiDAR (Light Detection and Ranging), a camera, a positioning locator (for example, GNSS, etc.), map information (for example, a high-definition (HD) map, an 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 that prevent accidents and reduce the driver's driving burden.
  • the system is comprised of various devices that provide functions for the purpose and one or more ECUs that control these devices. Further, 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.
  • Communication module 2013 can communicate with microprocessor 2031 and components of vehicle 2001 via a communication port.
  • the communication module 2013 communicates with the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, shift lever 2006, front wheels 2007, rear wheels 2008, axle 2009, electronic Data is transmitted and received between the microprocessor 2031, memory (ROM, RAM) 2032, and sensors 2021 to 29 in the control unit 2010.
  • 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 external devices. For example, various information is transmitted and received with an external device via wireless communication.
  • the communication module 2013 may be located either inside or outside the electronic control unit 2010.
  • the external device may be, for example, a base station, a mobile station, or the like.
  • the communication module 2013 receives signals from the various sensors 2021 to 2028 described above that are input to the electronic control unit 2010, information obtained based on the signals, and input from the outside (user) obtained via the information service unit 2012. At least one of the information based on the information may be transmitted to an external device via wireless communication.
  • the electronic control unit 2010, various sensors 2021-2028, information service unit 2012, etc. may be called an input unit that receives input.
  • the PUSCH transmitted by the communication module 2013 may include information based on the above input.
  • the communication module 2013 receives various information (traffic information, signal information, inter-vehicle information, etc.) transmitted from an external device, and displays it on the information service section 2012 provided in the vehicle 2001.
  • the information service unit 2012 is an output unit that outputs information (for example, outputs information to devices such as a display and a speaker based on the PDSCH (or data/information decoded from the PDSCH) received by the communication module 2013). may be called.
  • Communication module 2013 also stores various information received from external devices into memory 2032 that can be used by microprocessor 2031 . Based on the information stored in the memory 2032, the microprocessor 2031 controls the drive section 2002, steering section 2003, accelerator pedal 2004, brake pedal 2005, shift lever 2006, front wheel 2007, rear wheel 2008, and axle 2009 provided in the vehicle 2001. , sensors 2021 to 2029, etc. may be controlled.
  • the communication module 2013 may include the base station 10 or the terminal 20.
  • the operations of a plurality of functional sections may be physically performed by one component, or the operations of one functional section may be physically performed by a plurality of components.
  • the order of processing may be changed as long as there is no contradiction.
  • Software operated by the processor included in the base station 10 according to the embodiment of the present invention and software operated by the processor included in the terminal 20 according to the embodiment of the present invention are respectively random access memory (RAM), flash memory, and read-only memory. (ROM), EPROM, EEPROM, register, hard disk (HDD), removable disk, CD-ROM, database, server, or any other suitable storage medium.
  • the notification of information is not limited to the aspects/embodiments described in this disclosure, and may be performed using other methods.
  • the notification of information may be physical layer signaling (e.g., DCI (Downlink Control Information), UCI (Uplink Control Information)), upper layer signaling (e.g., RRC (Radio Resource Control) signaling, MAC (Medium Access Control) signaling). , broadcast information (MIB (Master Information Block), SIB (System Information Block)), other signals, or a combination thereof.
  • RRC signaling may be called an RRC message, and may be, for example, an RRC Connection Setup message, an RRC Connection Reconfiguration message, or the like.
  • Each aspect/embodiment described in this disclosure is LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4G (4th generation mobile communication system), 5G (5th generation mobile communication system). system), 6th generation mobile communication system (6G), xth generation mobile communication system (xG) (xG (x is an integer or decimal number, for example)), FRA (Future Radio Access), NR (new Radio), New radio access ( NX), Future generation radio access (FX), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802 Systems that utilize .16 (WiMAX (registered trademark)), IEEE 802.20, UWB (Ultra-WideBand), Bluetooth (registered trademark), and other appropriate systems, and that are extended, modified, created, and defined based on these.
  • the present invention may be
  • the base station 10 may be performed by its upper node in some cases.
  • various operations performed for communication with a terminal 20 are performed by the base station 10 and other network nodes other than the base station 10. It is clear that this can be done by at least one of the following: for example, MME or S-GW (possible, but not limited to).
  • MME Mobility Management Entity
  • S-GW Packet Control Function
  • the other network node may be a combination of multiple other network nodes (for example, MME and S-GW).
  • the information, signals, etc. described in this disclosure can be output from an upper layer (or lower layer) to a lower layer (or upper layer). It may be input/output via multiple network nodes.
  • the input/output information may be stored in a specific location (for example, memory) or may be managed using a management table. Information etc. to be input/output may be overwritten, updated, or additionally written. The output information etc. may be deleted. The input information etc. may be transmitted to other devices.
  • the determination in the present disclosure may be performed based on a value represented by 1 bit (0 or 1), a truth value (Boolean: true or false), or a comparison of numerical values (e.g. , comparison with a predetermined value).
  • Software includes instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, whether referred to as software, firmware, middleware, microcode, hardware description language, or by any other name. , should be broadly construed to mean an application, software application, software package, routine, subroutine, object, executable, thread of execution, procedure, function, etc.
  • software, instructions, information, etc. may be sent and received via a transmission medium.
  • a transmission medium For example, if 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 create a website, When transmitted from a server or other remote source, these wired and/or wireless technologies are included within the definition of transmission medium.
  • 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. which may be referred to throughout the above description, may refer to voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these. It may also be represented by a combination of
  • At least one of the channel and the symbol may be a signal.
  • the signal may be a message.
  • a component carrier may also be called a carrier frequency, a cell, a frequency carrier, or the like.
  • system and “network” are used interchangeably.
  • radio resources may be indicated by an index.
  • Base Station BS
  • wireless base station base station
  • base station fixed station
  • NodeB eNodeB
  • gNodeB gNodeB
  • a base station can accommodate one or more (eg, three) cells. If a base station accommodates multiple cells, the overall coverage area of the base station can be partitioned into multiple smaller areas, and each smaller area is divided into multiple subsystems (e.g., small indoor base stations (RRHs)). Communication services can also be provided by Remote Radio Head).
  • RRHs small indoor base stations
  • Communication services can also be provided by Remote Radio Head).
  • the term "cell” or “sector” refers to part or all of the coverage area of a base station and/or base station subsystem that provides communication services in this coverage.
  • the base station transmitting information to the terminal may be read as the base station instructing the terminal to control/operate based on the information.
  • MS Mobile Station
  • UE User Equipment
  • a mobile station is defined by a person 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 referred to as a terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable terminology.
  • At least one of a base station and a mobile station may be called a transmitting device, a receiving device, a communication device, etc.
  • the base station and the mobile station may be a device mounted on a mobile body, the mobile body itself, or the like.
  • the moving body refers to a movable object, and the moving speed is arbitrary. Naturally, this also includes cases where the moving object is stopped.
  • the mobile objects include, for example, vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, carts, rickshaws, ships and other watercraft.
  • the mobile object may be a mobile object that autonomously travels based on a travel command. It may be a vehicle (e.g. car, airplane, etc.), an unmanned moving object (e.g. drone, self-driving car, etc.), or a robot (manned or unmanned). good.
  • 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 the mobile station may be an IoT (Internet of Things) device such as a sensor.
  • IoT Internet of Things
  • the base station in the present disclosure may be replaced by a terminal.
  • a configuration in which communication between a base station and a terminal is replaced with communication between a plurality of terminals 20 for example, it may be called D2D (Device-to-Device), V2X (Vehicle-to-Everything), etc.)
  • the terminal 20 may have the functions that the base station 10 described above 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 replaced with side channels.
  • a terminal in the present disclosure may be replaced by a base station.
  • a configuration may be adopted in which the base station has the functions that the above-described terminal has.
  • determining may encompass a wide variety of operations.
  • “Judgment” and “decision” include, for example, judging, calculating, computing, processing, deriving, investigating, looking up, search, and inquiry. (e.g., searching in a table, database, or other data structure), and regarding an ascertaining as a “judgment” or “decision.”
  • judgment and “decision” refer to receiving (e.g., receiving information), transmitting (e.g., sending information), input, output, and access.
  • (accessing) may include considering something as a “judgment” or “decision.”
  • judgment and “decision” refer to resolving, selecting, choosing, establishing, comparing, etc. as “judgment” and “decision”. may be included.
  • judgment and “decision” may include regarding some action as having been “judged” or “determined.”
  • judgment (decision) may be read as “assuming", “expecting", “considering”, etc.
  • connection refers to any connection or coupling, direct or indirect, between two or more elements and to each other. It may include the presence of one or more intermediate elements between two elements that are “connected” or “coupled.”
  • the bonds or connections between elements may be physical, logical, or a combination thereof. For example, "connection” may be replaced with "access.”
  • two elements may include one or more electrical wires, cables, and/or printed electrical connections, as well as in the radio frequency domain, as some non-limiting and non-inclusive examples. , electromagnetic energy having wavelengths in the microwave and optical (both visible and non-visible) ranges.
  • the reference signal can also be abbreviated as RS (Reference Signal), and may be called a pilot depending on the applied standard.
  • RS Reference Signal
  • the phrase “based on” does not mean “based solely on” unless explicitly stated otherwise. In other words, the phrase “based on” means both “based only on” and “based at least on.”
  • any reference to elements using the designations "first,” “second,” etc. does not generally limit the amount or order of those elements. These designations may be used in this disclosure as a convenient way to distinguish between two or more elements. Thus, reference to a first and second element does not imply that only two elements may be employed or that the first element must precede the second element in any way.
  • a radio frame may be composed of one or more frames in the time domain. Each frame or frames in the time domain may be called a subframe. A subframe may also be composed of one or more slots in the time domain. A subframe may have a fixed time length (eg, 1 ms) that does not depend on numerology.
  • the numerology may be a communication parameter applied to the transmission and/or reception of a certain signal or channel. Numerology includes, for example, subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame configuration, and transmitter/receiver. It may also indicate at least one of a specific filtering process performed in the frequency domain, a specific windowing process performed by the transceiver in the time domain, and the like.
  • SCS subcarrier spacing
  • TTI transmission time interval
  • transmitter/receiver transmitter/receiver. It may also indicate at least one of a specific filtering process performed in the frequency domain, a specific windowing process performed by the transceiver in the time domain, and the like.
  • a slot may be composed of one or more symbols (OFDM (Orthogonal Frequency Division Multiplexing) symbols, SC-FDMA (Single Carrier Frequency Division Multiple Access) symbols, etc.) in the time domain.
  • a slot may be a unit of time based on numerology.
  • a slot may include multiple mini-slots. Each minislot may be made up of one or more symbols in the time domain. Furthermore, a mini-slot may also be called a sub-slot. A minislot may be made up of fewer symbols than a slot.
  • PDSCH (or PUSCH) transmitted in time units larger than minislots 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. Other 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
  • multiple consecutive subframes may be called a TTI
  • one slot or one minislot may be called a TTI. It's okay.
  • at least one of the subframe and TTI may be a subframe (1ms) in existing LTE, a period shorter than 1ms (for example, 1-13 symbols), or a period longer than 1ms. It may be.
  • the unit representing the TTI may be called a slot, minislot, etc. instead of a subframe.
  • one slot may be called a unit time. The unit time may be different for each cell depending on the numerology.
  • TTI refers to, for example, the minimum time unit for scheduling in wireless communication.
  • a base station performs scheduling to allocate radio resources (frequency bandwidth, transmission power, etc. that can be used by each terminal 20) to each terminal 20 on a TTI basis.
  • radio resources frequency bandwidth, transmission power, etc. that can be used by each terminal 20
  • TTI is not limited to this.
  • the TTI may be a transmission time unit of a channel-coded data packet (transport block), a code block, a codeword, etc., or may be a processing unit of scheduling, link adaptation, etc. Note that when a TTI is given, the time interval (for example, the number of symbols) to which transport blocks, code blocks, code words, 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 time unit for scheduling.
  • the number of slots (minislot number) that constitutes 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), normal TTI, long TTI, normal subframe, normal subframe, long subframe, slot, etc.
  • TTI that is shorter than the normal TTI may be referred to as an abbreviated TTI, short TTI, partial or fractional TTI, shortened subframe, short subframe, minislot, subslot, slot, etc.
  • long TTI for example, normal TTI, subframe, etc.
  • short TTI for example, short TTI, etc. It may also be read as a TTI having the above TTI length.
  • a resource block is a resource allocation unit in the time domain and frequency domain, and may include one or more continuous subcarriers in the frequency domain.
  • the number of subcarriers included in an RB may be the same regardless of the numerology, and may be 12, for example.
  • the number of subcarriers included in an RB may be determined based on newerology.
  • the time domain of an RB may include one or more symbols, and may be one slot, one minislot, one subframe, or one TTI in length.
  • One TTI, one subframe, etc. may each be composed of one or more resource blocks.
  • one or more RBs include physical resource blocks (PRBs), sub-carrier groups (SCGs), resource element groups (REGs), PRB pairs, RB pairs, etc. May be called.
  • PRBs physical resource blocks
  • SCGs sub-carrier groups
  • REGs resource element groups
  • PRB pairs RB pairs, etc. May be called.
  • a resource block may be configured by one or more resource elements (REs).
  • REs 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 partial bandwidth or the like) may represent a subset of consecutive common resource blocks (RBs) for a certain numerology in a certain carrier.
  • the common RB may be specified by an RB index based on a common reference point of the carrier.
  • PRBs may be defined in a BWP and numbered within that BWP.
  • the BWP may include a UL BWP (UL BWP) and a DL BWP (DL BWP).
  • UL BWP UL BWP
  • DL BWP DL BWP
  • One or more BWPs may be configured within one carrier for a 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 of the active BWP.
  • “cell”, “carrier”, etc. in the present disclosure may be replaced with "BWP”.
  • radio frames, subframes, slots, minislots, symbols, etc. described above are merely 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 symbols included in an RB, Configurations such as the number of subcarriers, the number of symbols in a TTI, the symbol length, and the cyclic prefix (CP) length can be changed in various ways.
  • a and B are different may mean “A and B are different from each other.” Note that the term may also mean that "A and B are each different from C”. Terms such as “separate” and “coupled” may also be interpreted similarly to “different.”
  • notification of prescribed information is not limited to being done explicitly, but may also be done implicitly (for example, not notifying the prescribed information). Good too.
  • Base station 110 Transmitting section 120 Receiving section 130 Setting section 140 Control section 20 Terminal 210 Transmitting section 220 Receiving section 230 Setting section 240 Control section 1001 Processor 1002 Storage device 1003 Auxiliary storage device 1004 Communication device 1005 Input device 1006 Output device 2001 Vehicle 2002 Drive section 2003 Steering section 2004 Accelerator pedal 2005 Brake pedal 2006 Shift lever 2007 Front wheel 2008 Rear wheel 2009 Axle 2010 Electronic control section 2012 Information service section 2013 Communication module 2021 Current sensor 2022 Rotational speed sensor 2023 Air pressure sensor 2024 Vehicle speed sensor 2025 Acceleration sensor 2026 Brake Pedal sensor 2027 Shift lever sensor 2028 Object detection sensor 2029 Accelerator pedal sensor 2030 Driving support system section 2031 Microprocessor 2032 Memory (ROM, RAM) 2033 Communication port (IO port)

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Abstract

L'invention concerne un terminal comprenant : une unité de commande qui effectue une détermination pour abandonner un signal spécifié si une collision se produit entre un signal de référence de liaison montante pour un positionnement et le signal spécifié qui a une priorité inférieure à celle du signal de référence de liaison montante ; et une unité de transmission qui transmet le signal de référence de liaison montante.
PCT/JP2022/030643 2022-08-10 2022-08-10 Terminal, station de base et procédé de communication Ceased WO2024034084A1 (fr)

Priority Applications (2)

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JP2024540182A JPWO2024034084A1 (fr) 2022-08-10 2022-08-10
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018030396A1 (fr) * 2016-08-10 2018-02-15 株式会社Ｎｔｔドコモ Dispositif d'utilisateur, et procédé de communication
US20200014487A1 (en) * 2018-07-06 2020-01-09 Qualcomm Incorporated Re-allocation of positioning reference signal resources to accommodate another transmission
US20200236506A1 (en) * 2019-01-18 2020-07-23 Kt Corporation Apparatus and method of performing positioning in new radio

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018030396A1 (fr) * 2016-08-10 2018-02-15 株式会社Ｎｔｔドコモ Dispositif d'utilisateur, et procédé de communication
US20200014487A1 (en) * 2018-07-06 2020-01-09 Qualcomm Incorporated Re-allocation of positioning reference signal resources to accommodate another transmission
US20200236506A1 (en) * 2019-01-18 2020-07-23 Kt Corporation Apparatus and method of performing positioning in new radio

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