WO2024150342A1 - 端末及び通信方法 - Google Patents
端末及び通信方法 Download PDFInfo
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- WO2024150342A1 WO2024150342A1 PCT/JP2023/000485 JP2023000485W WO2024150342A1 WO 2024150342 A1 WO2024150342 A1 WO 2024150342A1 JP 2023000485 W JP2023000485 W JP 2023000485W WO 2024150342 A1 WO2024150342 A1 WO 2024150342A1
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- pusch
- terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/115—Grant-free or autonomous transmission
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
Definitions
- This disclosure relates to a terminal and a communication method.
- LTE Long Term Evolution
- UMTS Universal Mobile Telecommunication System
- Successor systems to LTE are also being considered to achieve even wider bandwidth and faster speeds than LTE.
- Examples of successor systems to LTE include systems called LTE-Advanced (LTE-A), Future Radio Access (FRA), 5th generation mobile communication system (5G), 5G plus (5G+), Radio Access Technology (New-RAT), and New Radio (NR).
- Non-Patent Document 1 For 5G, various wireless technologies and network architectures are being considered to meet the requirements of achieving a throughput of 10 Gbps or more while keeping wireless section latency to 1 ms or less (for example, Non-Patent Document 1).
- CG PUSCH Configured Grant Physical Uplink Shared Channel
- Non-Patent Document 2 There are Type 1 CG PUSCH and Type 2 CG PUSCH.
- Release 17 examines Extended Reality (XR), including virtual reality (VR) and mixed reality (MX), and considers XR scenarios, requirements, key performance indicators (KPIs), and evaluation methods.
- Target requirements for XR include capacity, latency (delay), mobility, and energy saving aspects.
- One aspect of the present disclosure is to provide a terminal and a communication method that appropriately sets multiple upstream signal opportunities in high-volume communication.
- a terminal has a receiving unit that receives parameters of upper layer signaling, and a control unit that determines activation and deactivation of transmission of uplink signals based on a downlink control signal and the parameters of the upper layer signaling, and the control unit determines the occasions of multiple uplink signals in one period based on individual time resource allocation information.
- a terminal has a receiving unit that receives parameters of upper layer signaling, and a control unit that determines activation and deactivation of transmission of uplink signals based on a downlink control signal and the parameters of the upper layer signaling, and the control unit determines each of the occasions of multiple uplink signals in one period based on one piece of time resource allocation information and the number of occasions of the multiple uplink signals.
- a communication method includes a terminal receiving parameters of higher layer signaling, determining activation and deactivation of transmission of an uplink signal based on a downlink control signal and the parameters of the higher layer signaling, and determining each of the occasions of a plurality of uplink signals in one period based on individual time resource allocation information.
- a communication method includes a terminal receiving parameters of higher layer signaling, determining activation and deactivation of transmission of an uplink signal based on a downlink control signal and the parameters of the higher layer signaling, and determining each of the occasions of a plurality of uplink signals in one period based on one piece of time resource allocation information and the number of occasions of the plurality of uplink signals.
- FIG. 1 is a diagram illustrating an example of dual connectivity (DC).
- FIG. 13 is a diagram illustrating an example of PUCCH carrier switching. A diagram showing parameters of configuredGrantConfig. A diagram showing parameters of configuredGrantConfig.
- FIG. 13 is a diagram showing an example of a TDRA table.
- FIG. 2 is a block diagram showing an example of the configuration of a base station 10.
- FIG. 2 is a block diagram showing an example of the configuration of a terminal 20.
- FIG. 2 is a diagram illustrating an example of a hardware configuration of a base station and a terminal according to the present embodiment.
- FIG. 2 is a diagram showing an example of the configuration of a vehicle 2001.
- HARQ-ACK Hybrid Automatic Repeat request-Acknowledgement
- HARQ-ACK is an example of information regarding an acknowledgment response (e.g., an acknowledgement) to data received by a terminal.
- an acknowledgment response e.g., an acknowledgement
- PUCCH carrier switching may be referred to by other names, such as carrier switching for transmitting control information.
- PUCCH carrier switching is a technology that is applied when a base station communicates through multiple cells. Below, we will explain dual connectivity, which is an example of communication through multiple cells, and PUCCH carrier switching.
- FIG. 1 is a diagram showing an example of dual connectivity (DC).
- a base station 10-1 may be a Master Node (MN).
- a base station 10-2 may be a Secondary Node (SN).
- DC carriers between different base stations are bundled.
- the base station 10-1 communicates with the terminal 20 via a primary cell (Pcell) and a secondary cell (Scell).
- the terminal 20 establishes a Radio Resource Control (RRC) connection with the base station 10-1.
- RRC Radio Resource Control
- Uplink Control Information e.g., Uplink Control Information: UCI
- UCI Uplink Control Information
- one carrier under base station 10-2 may be set as a Primary Scell (PScell) and PUCCH transmission may be supported by the PScell.
- PScell Primary Scell
- terminal 20 transmits UCI to base station 10-2 via the PScell.
- the terminal 20 configures an Scell in addition to a Pcell for the base station 10-1.
- the terminal 20 also configures an Scell in addition to a PScell for the base station 10-2.
- the terminal 20 transmits the UCI of each carrier under the base station 10-1 on the PUCCH of the Pcell.
- the terminal 20 also transmits the UCI of each carrier under the base station 10-2 on the PUCCH of the PScell.
- the cell group (CG) under the base station 10-1 may be referred to as a Master Cell-Group (MCG).
- MCG Master Cell-Group
- SCG Secondary Cell-Group
- the terminal 20 may transmit PUCCH via the Pcell, PScell, and/or PUCCH-Scell. In general, it is not expected that the terminal 20 will transmit PUCCH via an Scell other than the Pcell, PScell, and PUCCH-Scell.
- PUCCH carrier switching is being considered as a method to reduce the latency of HARQ-ACK feedback in the Time Division Duplex (TDD) system.
- Figure 2 shows an example of PUCCH carrier switching.
- the base station and the terminal communicate via cell 1 and cell 2.
- cell 1 is a Pcell and cell 2 is an Scell.
- the example of Figure 2 also shows the downlink (DL) slots and uplink (UL) slots in each cell.
- the terminal receives data at timing S101 (receives the Physical Downlink Shared Channel (PDSCH)).
- the terminal attempts to transmit a HARQ-ACK for the data received at S101 at timing S102, but at timing S102, the slot of cell 1 is a downlink (DL) slot. Therefore, when the terminal transmits a HARQ-ACK in cell 1, the transmission of the HARQ-ACK is postponed until the timing of transmitting the PUCCH in the uplink (UL) slot (for example, the timing of S103 in FIG. 2), so the latency of transmitting the HARQ-ACK increases.
- the timing of transmitting the PUCCH in the uplink (UL) slot may be referred to as a PUCCH transmission opportunity.
- the slot of cell 2 is a UL slot.
- the terminal can transmit a HARQ-ACK for the data received in S101 at the PUCCH transmission opportunity at the timing of S102 for cell 2, the latency of the HARQ-ACK transmission can be reduced.
- URLLC requires low latency, particularly in the wireless section. For this reason, 3GPP is considering PUCCH carrier switching, which switches the carrier on which a terminal transmits PUCCH, as an extension of URLLC technology.
- the same timing may mean the exact same timing, or may mean that all or part of a time resource (for example, one or more symbols (which may be a resource with a time unit shorter than a symbol) is the same or overlaps).
- PUCCH carrier switching may refer to a case where a terminal is attempting to transmit PUCCH at a specific transmission timing of a Pcell (which may be a PScell or a PUCCH-Scell), and the slot of the specific transmission timing of the Pcell (which may be a PScell or a PUCCH-Scell) is a DL slot, and the terminal switches the cell from which the PUCCH is transmitted to one of one or more Scells in which the slot with the same timing as the specific transmission timing is a UL slot (in the case of a PScell, an Scell other than the PScell, and in the case of a PUCCH-Scell, an Scell other than the PUCCH-Scell).
- the unit of the specific transmission timing is not limited to a slot.
- the specific transmission timing may be a timing in units of a subframe or a timing in units of a symbol.
- the first method is for the base station to dynamically instruct the terminal on the carrier to transmit the PUCCH.
- the second method is for the base station to semi-statically set the carrier to transmit the PUCCH to the terminal. Note that in the following embodiments, "transmitting PUCCH” and “transmitting PUCCH” may also refer to transmitting uplink control information via PUCCH.
- the terminal may notify the base station of terminal capability information (UE capability) that specifies information regarding the terminal's capabilities regarding PUCCH transmission.
- UE capability terminal capability information
- information indicating whether the terminal supports switching of settings related to the transmission of control information may be specified as the terminal capability information of the terminal.
- Switching of settings related to the transmission of control information may be, for example, switching of resources (e.g., carriers or cells) used for transmitting control information. Switching of resources used for transmitting control information may be referred to as "PUCCH carrier switching.”
- information indicating the application of dynamic PUCCH carrier switching and/or semi-static PUCCH carrier switching may be specified as the terminal capability information of the terminal.
- the configuration operation of quasi-static PUCCH carrier switching may be based on the RRC setting of the PUCCH cell timing pattern of the PUCCH cell to which the quasi-static PUCCH carrier switching applies.
- the configuration operation of quasi-static PUCCH carrier switching may also be supported between cells of different numerologies.
- PUCCH resources may be configured per UL BWP (Uplink Bandwidth Part) (e.g., per candidate cell and the UL BWP of that candidate cell).
- UL BWP Uplink Bandwidth Part
- the K1 value (offset) from PDSCH to HARQ-ACK may be interpreted based on the numerology of the dynamically instructed target PUCCH cell.
- the control information may be control information for scheduling the PUCCH, such as Downlink control information (DCI).
- DCI Downlink control information
- the numerology may also be considered as slots or Subcarrier Spacing (SCS).
- HARQ-ACK CB HARQ-ACK Codebook
- the terminal may notify the unused CG PUSCH occasion using UCI.
- the terminal may configure multiple CG PUSCH occasions during the period when one of the CG PUSCHs is configured.
- a CG PUSCH occasion may be referred to as a CG PUSCH transmission occasion.
- a period of CG PUSCH configuration may be referred to as a CG PUSCH period or a CG period. The period may be periodic.
- the configuration of the CG PUSCH is defined in Rel-16 (for example, Non-Patent Document 2).
- the CG PUSCH includes Type 1 CG PUSCH and Type 2 CG PUSCH.
- Type 1 CG PUSCH The transmission parameters of the Type 1 CG PUSCH are provided by "configuredGrantConfig”, “pusch-Config” and “rrc-ConfiguredUplinkGrant".
- the activation/deactivation of the Type 1 CG PUSCH depends on the RRC-configuration and does not depend on the Downlink Control Information (DCI).
- DCI Downlink Control Information
- Type 2 CG PUSCH The transmission parameters of Type 2 CG PUSCH are provided by "configuredGrantConfig”, "pusch-Config” and "activation DCI". Activation and deactivation of Type 2 CG PUSCH depend on RRC-configuration and DCI. One DCI can activate one CG PUSCH and deactivate multiple CG PUSCHs.
- Figures 3 and 4 show parameters of configuredGrantConfig.
- the parameters shown in Figure 4 follow the parameters shown in Figure 3.
- the parameters of configuredGrantConfig shown in Figures 3 and 4 are used to configure the granted uplink transmission.
- TDRA time domain resource assignment or allocation
- the terminal validates the configured UL grant Type 2 PDCCH for scheduling activation or scheduling release (see, for example, Section 10.2 of 3GPP TS38.213 V17.3.0). In other words, the terminal cannot validate an activated DCI if the DCI indicates multiple SLIVs by the TDRA field.
- the SLIV defines the start symbol and the number of consecutive symbols.
- Proposal 1 appropriately configures multiple CG PUSCH occasions in large-capacity communication by defining the Type 1 CG PUSCH-related configuration of Study 1.
- Proposal 1 may include Option 1 and Option 2.
- Option 1 of Proposal 1 does not support multiple CG PUSCH occasions in one CG period for Type 1 CG PUSCH configuration.
- Example 1 The terminal does not expect "timeDomainAllocation" in “rrc-ConfiguredUplinkGrant” that indicates multiple SLIVs.
- “rrc-ConfiguredUplinkGrant” is an RRC parameter related to the configuration of uplink grants
- “timeDomainAllocation” is a parameter related to the allocation of time resources.
- Example 2 The terminal does not expect the RRC parameter indicating the number of CG PUSCH occasions in one CG period to be configured for Type 1 CG PUSCH.
- a base station may control the enabling and disabling of multiple CG PUSCH occasions.
- a terminal can support multiple CG PUSCH occasions in a Type 1 CG PUSCH.
- the base station When the base station disables the function of multiple CG PUSCH occasions in Type 1 CG PUSCH, it does not include "timeDomainAllocation” that indicates multiple SLIVs in “rrc-ConfiguredUplinkGrant".
- the terminal does not support multiple CG PUSCH occasions because "timeDomainAllocation” that indicates multiple SLIVs is not included in "rrc-ConfiguredUplinkGrant".
- the base station does not set the RRC parameter indicating the number of CG PUSCH occasions for Type 1 CG PUSCH.
- the terminal does not support multiple CG PUSCH occasions because the RRC parameter indicating the number of CG PUSCH occasions is not set for Type 1 CG PUSCH.
- Option 2 of Proposal 1 supports multiple CG PUSCH occasions in one CG period for Type 1 CG PUSCH configuration.
- Example 1 If "timeDomainAllocation" in "rrc-ConfiguredUplinkGrant" indicates multiple SLIVs, the terminal expects (supports) multiple CG PUSCH occasions in one CG period.
- Example 2 The terminal expects (supports) multiple CG PUSCH occasions in one CG period if the number of CG PUSCH occasions in one CG period is configured for Type 1 CG PUSCH.
- Example 2 When the terminal expects multiple CG PUSCH occasions in Example 1 or Example 2, it expects that one or more of the following conditions are met.
- the conditions may also be referred to as states.
- Condition 1 Dynamic indication of unused CG PUSCH occasions is enabled for Type 1 CG PUSCH configuration.
- rep-K is not set in “ConfiguredGrantConfig”. Or, “rep-K” is set to "1". Note that “rep-K” is a parameter that indicates the number of repetitions of the CG PUSCH.
- pusch-RepTypeIndicator is a parameter that indicates the type of repetition.
- Repetition type A may be interpreted as a form in which the PUSCH allocated within a slot is repeatedly transmitted. In other words, the PUSCH is 14 symbols or less, and cannot be allocated across multiple slots (adjacent slots).
- Repetition type B may be interpreted as repeated transmission of a PUSCH in which a PUSCH of 15 or more symbols may be assigned. In this embodiment, it may be permitted to assign such a PUSCH across multiple slots.
- TPR Transmission and Reception Point.
- pathlossReferenceIndex2 and/or “srs-ResourceIndicator2” and/or “precodingAndNumberOfLayers2” are not set in “rrc-ConfiguredUplinkGrant".
- parameters related to the second SRS are not set in the terminal.
- SRS is an abbreviation for Sounding Reference Signal.
- pathlossReferenceIndex2 is a parameter indicating the reference signal used as the PUSCH pathloss reference for the second SRS resource set.
- srs-ResourceIndicator2 is a parameter indicating the SRS resource used for the second SRS resource set.
- precodingAndNumberOfLayers2 is a parameter indicating the precoding and number of layers for the second SRS resource set.
- cg-SDT-Configuration is a parameter related to the SDT configuration.
- SDT stands for Small Data Transmission. SDT transmits CG PUSCH in the RRC inactive state.
- the period of the CG PUSCH is greater than X symbols, or the period of the CG PUSCH is greater than the number of slots of the specified multiple SLIVs, or in other words, the period of the CG PUSCH is set so that the configured multiple CG PUSCH occasions are transmitted within the CG period.
- the terminal may transmit one CG PUSCH occasion in one CG period.
- the terminal determines whether to support multiple CG PUSCH occasions for Type 1 CG PUSCH in one period based on parameters of higher layer signaling. This operation allows the terminal to appropriately configure multiple CG PUSCH occasions in high-capacity communication.
- Proposal 2 specifies the Type 2 CG PUSCH-related configuration and verification of activated DCI in Study 2, thereby appropriately configuring multiple CG PUSCH occasions in high-capacity communications.
- Proposal 2 In Proposal 2, multiple CG PUSCH occasions are supported in one CG period for Type 2 CG PUSCH configuration.
- Proposal 2 has the following Assumptions 1 and 2.
- TDRAs for multiple CG PUSCH occasions in one CG period are indicated by individual SLIVs in one TDRA row.
- Figure 5 shows an example of a TDRA table.
- the TDRA table shown in Figure 5 is semi-statically entered in the terminal using parameters such as RRC.
- the TDRA table has multiple SLIVs for one row.
- the multiple SLIVs correspond to the SLIVs of multiple CG PUSCH occasions.
- the terminal verifies the DCI as a Type 2 CG PUSCH activation DCI.
- the terminal determines multiple CG PUSCH occasions (e.g., slots) in one CG period based on the multiple SLIVs.
- the terminal is able to verify the DCI as an activated DCI indicating a TDRA row index indicating multiple SLIVs and transmits multiple CG PUSCH occasions based on multiple SLIVs in one CG period, it expects that one or more of the following conditions are met:
- Condition 1 Dynamic indication of unused CG PUSCH occasions is enabled for Type 2 CG PUSCH configuration.
- Type 1 CG PUSCH configuration is specified as either High or Low.
- the activated DCI format is DCI 0_1 or DCI 0_2, then "pusch-RepTypeIndicatorDCI-0-1" or “pusch-RepTypeIndicatorDCI-0-2" in "PUSCH-Config" is not set. Or, if the activated DCI format is DCI 0_1 or DCI 0_2, then it is not set as 'pusch-RepTypeA' or 'pusch-RepTypeB'.
- PUSCH-Config is an information element used to set terminal-specific PUSCH parameters applicable to a specific Band Width Part (BWP).
- BWP Band Width Part
- pusch-RepTypeIndicatorDCI-0-1 /"pusch-RepTypeIndicatorDCI-0-2” are parameters that indicate whether the terminal follows "Repetition type A” or "Repetition type B” operation for PUSCH scheduled in DCI format 0_1/0_2.
- the value of the SRS resource set indicator field of the activated DCI indicates '00' or '01'.
- the value of the SRS resource set indicator field of the activated DCI indicates one particular TPR.
- powerControlLoopToUse2 is a parameter related to the closed control loop applied to the second SRS resource set.
- mappingPattern is a parameter that indicates whether the terminal should follow the Cyclical mapping pattern or the Sequential mapping pattern when two SRS resource sets are configured.
- the period of the CG PUSCH is greater than X symbols, or the period of the CG PUSCH is greater than the number of slots of the specified multiple SLIVs, or in other words, the period of the CG PUSCH is set so that the configured multiple CG PUSCH occasions are transmitted within the CG period.
- the terminal may verify the DCI as an activated DCI if any one or more of the above conditions are not satisfied, and may transmit only one CG PUSCH occasion in one CG period based on the first or last SLIV.
- TDRA of multiple CG PUSCH occasions in one CG period is determined based on the TDRA of the first CG PUSCH occasion and the number of CG PUSCH occasions in one CG period.
- Assumption 2 of Proposal 2 is further divided into two assumptions 2-1 and 2-2.
- the terminal expects a TDRA for the first CG PUSCH occasion and the number of multiple CG PUSCH occasions based on the activated DCI.
- the terminal determines the TDRA for CG PUSCH occasions after the first CG PUSCH occasion based on the TDRA for the first CG PUSCH occasion and the number of multiple CG PUSCH occasions.
- the terminal is capable of verifying the DCI as an activated DCI indicating the number of CG PUSCH occasions in one CG period, and when transmitting multiple CG PUSCH occasions based on one SLIV or the first SLIV of multiple SLIVs in one CG period, expects that one or more of the following conditions are met:
- Condition 1 Enabling multiple CG PUSCH occasions in one CG period is configured for Type 2 CG PUSCH configuration.
- Condition 2 Dynamic indication of unused CG PUSCH occasions is enabled for Type 2 CG PUSCH configuration.
- Type 1 CG PUSCH configuration is specified as either High or Low.
- the activated DCI format is DCI 0_1 or DCI 0_2, then "pusch-RepTypeIndicatorDCI-0-1" or “pusch-RepTypeIndicatorDCI-0-2" in "PUSCH-Config" is not set. Or, if the activated DCI format is DCI 0_1 or DCI 0_2, then it is not set as 'pusch-RepTypeA' or 'pusch-RepTypeB'.
- Multi-TPR transmission is not configured for Type 2 CG PUSCH configuration.
- the value of the SRS resource set indicator field of the activated DCI indicates '00' or '01'.
- the value of the SRS resource set indicator field of the activated DCI indicates one particular TPR.
- the period of the CG PUSCH is greater than X symbols, or the period of the CG PUSCH is greater than the number of slots of the specified multiple SLIVs, or in other words, the period of the CG PUSCH is set so that the configured multiple CG PUSCH occasions are transmitted within the CG period.
- the terminal may verify the DCI as an activated DCI if any one or more of the above conditions are not satisfied, and may transmit only one CG PUSCH occasion in one CG period.
- the number of CG PUSCH occasions in one CG period is indicated by the Type 2 CG PUSCH configuration, for example, the number of CG PUSCH occasions in one CG period is indicated by a parameter of higher layer signaling such as "ConfiguredGrantConfig".
- the terminal When the number of CG PUSCH occasions in one CG period is set to "ConfiguredGrantConfig", the terminal expects that one or more of the following conditions are met.
- Condition 1 Dynamic indication of unused CG PUSCH occasions is enabled for Type 2 CG PUSCH configuration.
- Type 1 CG PUSCH configuration is specified as either High or Low.
- the activated DCI format is DCI 0_1 or DCI 0_2, then "pusch-RepTypeIndicatorDCI-0-1" or “pusch-RepTypeIndicatorDCI-0-2" in "PUSCH-Config" is not set. Or, if the activated DCI format is DCI 0_1 or DCI 0_2, then it is not set as 'pusch-RepTypeA' or 'pusch-RepTypeB'.
- the value of the SRS resource set indicator field of the activated DCI indicates '00' or '01'.
- the value of the SRS resource set indicator field of the activated DCI indicates one particular TPR.
- the period of the CG PUSCH is greater than X symbols, or the period of the CG PUSCH is greater than the number of slots of the specified multiple SLIVs, or in other words, the period of the CG PUSCH is set so that the configured multiple CG PUSCH occasions are transmitted within the CG period.
- the terminal may transmit one CG PUSCH occasion in one CG period.
- the terminal determines each of multiple CG PUSCH occasions for the Type 2 CG PUSCH in one period based on an individual TDRA. This operation allows the terminal to appropriately set multiple CG PUSCH occasions in high-capacity communication.
- the terminal also determines each of multiple CG PUSCH occasions for a Type 2 CG PUSCH in one period based on the TDRA of the first CG PUSCH occasion and the number of multiple CG PUSCH occasions. This operation allows the terminal to appropriately set multiple CG PUSCH occasions for high-volume communication.
- Proposal 3 appropriately sets multiple CG PUSCH occasions in large-capacity communication by specifying a restriction on multiple CG PUSCH occasions in one CG period in Study 3.
- Proposal 3 may have Option 1 and Option 2.
- the terminal performs the following transmission operations of Alt.1-Alt.3.
- each of the multiple CG PUSCH occasions has only one repetition.
- a terminal transmits multiple CG PUSCH occasions in one CG period, and performs one repetition on each of the multiple CG PUSCH occasions.
- each of the multiple CG PUSCH occasions has K repetitions.
- a terminal transmits multiple CG PUSCH occasions in one CG period, and performs K repetitions on each of the multiple CG PUSCH occasions. If the number of multiple CG PUSCH occasions is N, then the terminal transmits PUSCH N*K times in one CG period.
- one CG PUSCH occasion is transmitted in one CG period, and one CG PUSCH occasion has K repetitions.
- a terminal transmits one CG PUSCH occasion in one CG period, and one CG PUSCH occasion has K repetitions.
- Option 2 of Proposal 3 describes another possible variation of TDRA for multiple CG PUSCH occasions in one CG period.
- Example 1 The number of CG PUSCH occasions in one slot is limited to a maximum of X.
- Example 2 Multiple CG PUSCH occasions in one CG period are limited to a maximum of Y slots.
- the values of X and/or Y may be defined by a specification.
- the values of X and/or Y may be set by parameters of higher layer signaling such as RRC.
- the values of X and/or Y may be reported by UE capability information.
- the candidate values for X and/or Y may depend on the frequency range (e.g. FR1, FR2-1, FR2-2) and/or the SCS (e.g. 15/30/60/120/240/960 kHz SCS) and/or the number of CG PUSCH settings and/or the periodicity value of the CG PUSCH settings.
- the frequency range e.g. FR1, FR2-1, FR2-2
- the SCS e.g. 15/30/60/120/240/960 kHz SCS
- the terminal determines the CG PUSCH occasions in one period and the repetition of the CG PUSCH occasions based on parameters of higher layer signaling. Through this operation, multiple CG PUSCH occasions are appropriately configured in high-capacity communication.
- the terminal limits the number of CG PUSCH occasions in one slot to a maximum of X. This operation allows multiple CG PUSCH occasions to be appropriately set in high-volume communications.
- the terminal limits multiple CG PUSCH occasions in one CG period to a maximum of Y slots. This operation allows multiple CG PUSCH occasions to be appropriately set in high-volume communications.
- the terminal may dynamically update the number of CG PUSCH occasions in one CG period.
- the terminal may dynamically update TDRA for multiple CG PUSCH occasions in one CG period.
- the dynamic update may be performed by an existing DCI and/or a new DCI and/or an activated DCI and/or a MAC CE.
- MAC CE stands for Media Access Control Control Element.
- Which proposals, options, and/or Alts are used may be set by higher layer signaling parameters. Which proposals, options, and/or Alts are used may be reported by the terminal as terminal capability information. Which proposals, options, and/or Alts are used may be defined by a specification. Which proposals, options, and/or Alts are used may be defined by a combination of higher layer signaling parameters, terminal capability information, and a specification.
- the terminal may report the following terminal capability information to the base station: Information defining whether joint operation of PUSCH repetition and multiple CG PUSCH occasions in one CG period is supported Prerequisite features and/or capabilities for terminal capability of multiple CG PUSCH occasions in one CG period include one or more of the following: A single DCI (Rel-17 capability) to schedule multiple PUSCHs multiple active configured grant configurations for the BWP of the serving cell ...UCI reports dynamic display of unused CG PUSCH occasions
- Fig. 6 is a block diagram showing an example of the configuration of the base station 10.
- the base station 10 includes, for example, a transmitting unit 101, a receiving unit 102, and a control unit 103.
- the base station 10 communicates with the terminal 20 (see Fig. 7) by radio.
- the transmitting unit 101 transmits a downlink (DL) signal to the terminal 20.
- the transmitting unit 101 transmits the DL signal under the control of the control unit 103.
- the DL signal may include, for example, a downlink data signal and control information (e.g., Downlink Control Information (DCI)).
- DCI Downlink Control Information
- the DL signal may also include information indicating scheduling regarding signal transmission from the terminal 20 (e.g., an UL grant).
- the DL signal may also include control information of higher layers (e.g., Radio Resource Control (RRC) control information).
- RRC Radio Resource Control
- the DL signal may also include a reference signal.
- Channels used to transmit DL signals include, for example, data channels and control channels.
- the data channel may include a PDSCH (Physical Downlink Shared Channel)
- the control channel may include a PDCCH (Physical Downlink Control Channel).
- the base station 10 transmits control information to the terminal 20 using the PDCCH, and transmits downlink data signals using the PDSCH.
- the reference signal included in the DL signal may include, for example, at least one of the following: Demodulation Reference Signal (DMRS), Phase Tracking Reference Signal (PTRS), Channel State Information-Reference Signal (CSI-RS), Sounding Reference Signal (SRS), and Positioning Reference Signal (PRS) for position information.
- DMRS Demodulation Reference Signal
- PTRS Phase Tracking Reference Signal
- CSI-RS Channel State Information-Reference Signal
- SRS Sounding Reference Signal
- PRS Positioning Reference Signal
- reference signals such as DMRS and PTRS are used for demodulating the downlink data signal and are transmitted using the PDSCH.
- the receiving unit 102 receives an uplink (UL) signal transmitted from the terminal 20.
- the receiving unit 102 receives the UL signal under the control of the control unit 103.
- the control unit 103 controls the communication operations of the base station 10, including the transmission processing of the transmission unit 101 and the reception processing of the reception unit 102.
- control unit 103 acquires information such as data and control information from the upper layer and outputs it to the transmission unit 101.
- the control unit 103 also outputs data and control information received from the reception unit 102 to the upper layer.
- control unit 103 allocates resources (or channels) to be used for transmitting and receiving DL signals and/or resources to be used for transmitting and receiving UL signals based on a signal (e.g., data and control information, etc.) received from the terminal 20 and/or data and control information, etc. acquired from a higher layer. Information regarding the allocated resources may be included in the control information to be transmitted to the terminal 20.
- a signal e.g., data and control information, etc.
- Information regarding the allocated resources may be included in the control information to be transmitted to the terminal 20.
- the control unit 103 sets PUCCH resources as an example of resource allocation used for transmitting and receiving UL signals.
- Information related to PUCCH settings such as a PUCCH cell timing pattern (PUCCH setting information) may be notified to the terminal 20 by RRC.
- ⁇ Device configuration> 7 is a block diagram showing an example of the configuration of the terminal 20.
- the terminal 20 includes, for example, a receiving unit 201, a transmitting unit 202, and a control unit 203.
- the terminal 20 communicates with the base station 10, for example, wirelessly.
- the receiving unit 201 receives a DL signal transmitted from the base station 10. For example, the receiving unit 201 receives a DL signal under the control of the control unit 203.
- the transmitting unit 202 transmits the UL signal to the base station 10. For example, the transmitting unit 202 transmits the UL signal under the control of the control unit 203.
- the UL signal may include, for example, an uplink data signal and control information (e.g., UCI). For example, it may include information regarding the processing capabilities of the terminal 20 (e.g., UE capability).
- the UL signal may also include a reference signal.
- Channels used to transmit UL signals include, for example, data channels and control channels.
- the data channels include the Physical Uplink Shared Channel (PUSCH)
- the control channels include the Physical Uplink Control Channel (PUCCH).
- the terminal 20 receives control information from the base station 10 using the PUCCH, and transmits uplink data signals using the PUSCH.
- PUSCH Physical Uplink Shared Channel
- PUCCH Physical Uplink Control Channel
- the reference signal included in the UL signal may include, for example, at least one of DMRS, PTRS, CSI-RS, SRS, and PRS.
- reference signals such as DMRS and PTRS are used for demodulating uplink data signals and are transmitted using an uplink channel (for example, PUSCH).
- the control unit 203 controls the communication operations of the terminal 20, including the reception processing in the receiving unit 201 and the transmission processing in the transmitting unit 202.
- control unit 203 acquires information such as data and control information from a higher layer and outputs it to the transmission unit 202.
- the control unit 203 also outputs, for example, data and control information received from the reception unit 201 to the higher layer.
- the control unit 203 controls the transmission of information to be fed back to the base station 10.
- the information to be fed back to the base station 10 may include, for example, HARQ-ACK, channel state information (Channel. State Information (CSI)), or a scheduling request (Scheduling Request (SR)).
- CSI Channel State Information
- SR scheduling request
- the information to be fed back to the base station 10 may be included in UCI.
- the UCI is transmitted in the resources of the PUCCH.
- the control unit 203 sets the PUCCH resource based on the configuration information received from the base station 10 (for example, configuration information such as the PUCCH cell timing pattern notified by RRC and/or DCI).
- the control unit 203 determines the PUCCH resource to be used for transmitting information to be fed back to the base station 10.
- the transmission unit 202 transmits the information to be fed back to the base station 10 in the PUCCH resource determined by the control unit 203.
- the channel used to transmit DL signals and the channel used to transmit UL signals are not limited to the above examples.
- the channel used to transmit DL signals and the channel used to transmit UL signals may include a Random Access Channel (RACH) and a Physical Broadcast Channel (PBCH).
- the RACH may be used to transmit Downlink Control Information (DCI) including a Random Access Radio Network Temporary Identifier (RA-RNTI), for example.
- DCI Downlink Control Information
- RA-RNTI Random Access Radio Network Temporary Identifier
- the control unit 203 determines whether to support multiple uplink signal occasions for Type 1 CG PUSCH in one period based on parameters of higher layer signaling. For example, if “rrc-ConfiguredUplinkGrant" does not include “timeDomainAllocation” indicating multiple SLIVs, the control unit 203 determines not to support multiple uplink signal occasions for Type 1 CG PUSCH in one period. If “rrc-ConfiguredUplinkGrant” includes "timeDomainAllocation” indicating multiple SLIVs, the control unit 203 determines to support multiple uplink signal occasions for Type 1 CG PUSCH in one period.
- control unit 203 decides not to support multiple uplink signal occasions for Type 1 CG PUSCH, it assumes that one or more of the conditions described in ⁇ Proposal 1 - Option 2> are met.
- the control unit 203 also determines the occasions of multiple uplink signals in one period based on the individual time resource allocation information. When the control unit 203 determines the occasions of multiple uplink signals in one period based on the individual time resource allocation information and transmits the occasions of multiple uplink signals, it is assumed that one or more of the conditions described in ⁇ Proposal 2 - Assumption 1> are satisfied.
- the control unit 203 also determines each of the multiple uplink signal occasions in one period based on one piece of time resource allocation information and the number of the multiple uplink signal occasions.
- the one piece of time resource allocation information may be resource allocation information for the first occasion of the multiple uplink signal occasions.
- the number of CG PUSCH occasions in one CG period may be indicated by an activation DCI.
- the control unit 203 assumes that one or more of the conditions described in ⁇ Proposal 2 - Assumption 2-1> are satisfied.
- the number of CG PUSCH occasions in one CG period is indicated by a Type 2 CG PUSCH setting.
- the control unit 203 assumes that one or more of the conditions described in ⁇ Proposal 2 - Assumption 2-2> are satisfied.
- the control unit 203 also determines the occasion of the uplink signal in one period and the repetition of the occasion of the uplink signal based on the parameters of the higher layer signaling.
- control unit 203 limits the number of CG PUSCH occasions in one slot to a maximum of X when determining time resource allocation information.
- control unit 203 limits multiple CG PUSCH occasions in one CG period to a maximum of Y slots.
- each functional block may be realized using one device that is physically or logically coupled, or may be realized using two or more devices that are physically or logically separated and directly or indirectly connected (for example, using wires, wirelessly, etc.).
- the functional blocks may be realized by combining the one device or the multiple devices with software.
- Functions include, but are not limited to, judgement, determination, judgment, calculation, computation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, resolution, selection, election, establishment, comparison, assumption, expectation, regard, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, and assignment.
- a functional block (component) that performs the transmission function is called a transmitting unit or transmitter.
- a base station, a terminal, etc. in one embodiment of the present disclosure may function as a computer that performs processing of the wireless communication method of the present disclosure.
- FIG. 8 is a diagram showing an example of the hardware configuration of a base station and a terminal according to this embodiment.
- the above-mentioned base station 10 and terminal 20 may be physically configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, etc.
- the term "apparatus" can be interpreted as a circuit, device, unit, etc.
- the hardware configuration of the base station 10 and the terminal 20 may be configured to include one or more of the devices shown in the figure, or may be configured to exclude some of the devices.
- the functions of the base station 10 and the terminal 20 are realized by loading specific software (programs) onto hardware such as the processor 1001 and memory 1002, causing the processor 1001 to perform calculations, control communications by the communication device 1004, and control at least one of the reading and writing of data in the memory 1002 and storage 1003.
- the processor 1001 for example, operates an operating system to control the entire computer.
- the processor 1001 may be configured as a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic unit, registers, etc.
- CPU central processing unit
- control unit 103 and control unit 203, etc. may be realized by the processor 1001.
- the processor 1001 also reads out programs (program codes), software modules, data, etc. from at least one of the storage 1003 and the communication device 1004 into the memory 1002, and executes various processes according to these.
- the programs used are those that cause a computer to execute at least some of the operations described in the above-mentioned embodiments.
- the control unit 203 of the terminal 20 may be realized by a control program stored in the memory 1002 and running on the processor 1001, and similarly may be realized for other functional blocks.
- the above-mentioned various processes have been described as being executed by one processor 1001, they may be executed simultaneously or sequentially by two or more processors 1001.
- the processor 1001 may be implemented by one or more chips.
- the programs may be transmitted from a network via a telecommunications line.
- Memory 1002 is a computer-readable recording medium and may be composed of at least one of, for example, ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically Erasable Programmable ROM), RAM (Random Access Memory), etc. Memory 1002 may also be called a register, cache, main memory, etc. Memory 1002 can store executable programs (program codes), software modules, etc. for implementing a wireless communication method relating to one embodiment of the present disclosure.
- ROM Read Only Memory
- EPROM Erasable Programmable ROM
- EEPROM Electrical Erasable Programmable ROM
- RAM Random Access Memory
- Memory 1002 may also be called a register, cache, main memory, etc.
- Memory 1002 can store executable programs (program codes), software modules, etc. for implementing a wireless communication method relating to one embodiment of the present disclosure.
- Storage 1003 is a computer-readable recording medium, and may be, for example, at least one of an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, a magneto-optical disk (e.g., a compact disk, a digital versatile disk, a Blu-ray (registered trademark) disk), a smart card, a flash memory (e.g., a card, a stick, a key drive), a floppy (registered trademark) disk, a magnetic strip, etc.
- Storage 1003 may also be referred to as an auxiliary storage device.
- the above-mentioned storage medium may be, for example, a database, a 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 referred to as, for example, a network device, a network controller, a network card, or a communication module.
- the communication device 1004 may be configured to include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc., to realize, for example, at least one of Frequency Division Duplex (FDD) and Time Division Duplex (TDD).
- FDD Frequency Division Duplex
- TDD Time Division Duplex
- the above-mentioned transmitting unit 101, receiving unit 102, receiving unit 201, and transmitting unit 202 may be realized by the communication device 1004.
- the input device 1005 is an input device (e.g., a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.) that accepts input from the outside.
- the output device 1006 is an output device (e.g., 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 be integrated into one structure (e.g., a touch panel).
- each device such as the processor 1001 and 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 each device.
- the base station 10 and the terminal 20 may be configured to include hardware such as a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), or a field programmable gate array (FPGA), and some or all of the functional blocks may be realized by the hardware.
- the processor 1001 may be implemented using at least one of these pieces of hardware.
- the notification of information is not limited to the embodiment described in the present disclosure, and may be performed using other methods.
- the notification of information may be performed by physical layer signaling (e.g., Downlink Control Information (DCI), Uplink Control Information (UCI)), higher layer signaling (e.g., Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information (Master Information Block (MIB), System Information Block (SIB)), other signals, or combinations thereof.
- the 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.
- LTE Long Term Evolution
- LTE-A LTE-Advanced
- SUPER 3G IMT-Advanced
- 4th generation mobile communication system 4th generation mobile communication system
- 5th generation mobile communication system 5G
- 6th generation mobile communication system 6th generation mobile communication system
- xth generation mobile communication system xG (x is, for example, an integer or a decimal)
- Future Radio Access FAA
- new Radio NR
- New radio access NX
- Future generation radio access Future generation radio access
- W-CDMA registered trademark
- GSM registered trademark
- UMB Ultra Mobile Broadband
- IEEE 802.11 Wi-Fi (registered trademark)
- IEEE 802.16 WiMAX (registered trademark)
- IEEE 802.17 WiMAX (registered trademark)
- IEEE 802.19 WiMAX (registered trademark)
- IEEE 802.20 WiMAX (registered trademark)
- IEEE 802.21 WiMAX (registered trademark)
- a specific operation performed by a base station may be performed by its upper node in some cases.
- various operations performed for communication with a terminal may be performed by at least one of the base station and other network nodes other than the base station (e.g., MME or S-GW, etc., but are not limited to these).
- MME Mobility Management Entity
- S-GW Serving Mobility Management Entity
- the above example illustrates a case where there is one other network node other than the base station, it may be a combination of multiple other network nodes (e.g., MME and S-GW).
- Information, etc. may be output from a higher layer (or a lower layer) to a lower layer (or a higher layer).
- Information may be input/output via multiple network nodes.
- the input and output information may be stored in a specific location (e.g., memory) or may be managed using a management table.
- the input and output information may be overwritten, updated, or added.
- the output information may be deleted.
- the input information may be transmitted to another device.
- the determination may be based on a value represented by one bit (0 or 1), a Boolean value (true or false), or a numerical comparison (e.g., comparison with a predetermined value).
- notification of predetermined information is not limited to being done explicitly, but may be done implicitly (e.g., not notifying the predetermined information).
- Software shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, functions, etc., whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.
- software, instructions, information, etc. may be transmitted and received via a transmission medium.
- a transmission medium For example, if the software is transmitted from a website, server, or other remote source using at least one of wired technologies (such as coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL)), and/or wireless technologies (such as infrared, microwave, etc.), then at least one of these wired and wireless technologies is included within the definition of a transmission medium.
- wired technologies such as coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL)
- wireless technologies such as infrared, microwave, etc.
- the information, signals, etc. described in this disclosure may be represented using any of a variety of different technologies.
- the data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, optical fields or photons, or any combination thereof.
- At least one of the channel and the symbol may be a signal (signaling).
- the signal may be a message.
- a component carrier (CC) may be called a carrier frequency, a cell, a frequency carrier, etc.
- the information, parameters, etc. described in the present disclosure may be represented using absolute values, may be represented using relative values from a predetermined value, or may be represented using other corresponding information.
- a radio resource may be indicated by an index.
- the names used for the above-mentioned parameters are not limiting in any respect. Furthermore, the formulas etc. using these parameters may differ from those explicitly disclosed in this disclosure.
- the various channels (e.g., PUCCH, PDCCH, etc.) and information elements may be identified by any suitable names, and therefore the various names assigned to these various channels and information elements are not limiting in any respect.
- 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 a macro cell, a small cell, a femto cell, a pico cell, etc.
- a base station can accommodate one or more (e.g., three) cells.
- a base station accommodates multiple cells, the entire coverage area of the base station can be divided into multiple smaller areas, and each smaller area can also provide communication services by a base station subsystem (e.g., a small indoor base station (RRH: Remote Radio Head).
- RRH Remote Radio Head
- the term "cell” or “sector” refers to a part or the entire coverage area of at least one of the base station and base station subsystems that provide communication services in this coverage.
- MS Mobile Station
- UE User Equipment
- a mobile station may also be referred to 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 terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable terminology.
- At least one of the base station and the mobile station may be called a transmitting device, a receiving device, a communication device, etc.
- At least one of the base station and the mobile station may be a device mounted on a moving object, the moving object itself, etc.
- the moving object refers to an object that can move, and the moving speed is arbitrary. It also naturally includes the case where the moving object is stopped.
- the moving object includes, but is not limited to, for example, a vehicle, a transport vehicle, an automobile, a motorcycle, a bicycle, a connected car, an excavator, a bulldozer, a wheel loader, a dump truck, a forklift, a train, a bus, a handcar, a rickshaw, a ship and other watercraft, an airplane, a rocket, an artificial satellite, a drone (registered trademark), a multicopter, a quadcopter, a balloon, and objects mounted thereon.
- the moving object may also be a moving object that runs autonomously based on an operation command.
- At least one of the base station and the mobile station may be a device that does 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 read as a terminal.
- the embodiment of the present disclosure may be applied to a configuration in which communication between a base station and a terminal is replaced with communication between multiple terminals (which may be called, for example, D2D (Device-to-Device) or V2X (Vehicle-to-Everything)).
- the terminal 20 may be configured to have the functions of the base station 10 described above.
- terms such as "uplink” and “downlink” may be read as terms corresponding to communication between terminals (for example, "side”).
- the uplink channel, downlink channel, etc. may be read as a side channel.
- the terminal in this disclosure may be interpreted as a base station.
- the base station 10 may be configured to have the functions of the terminal 20 described above.
- FIG. 9 shows an example configuration of a 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, front wheels 2007, rear wheels 2008, an axle 2009, an electronic control unit 2010, various sensors 2021-2029, an information service unit 2012, and a communication module 2013.
- a communication device mounted on the vehicle 2001 and may be applied to the communication module 2013, for example.
- 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 called a handlebar), 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 a communication port (IO port) 2033. Signals are input to the electronic control unit 2010 from various sensors 2021 to 2029 provided in the vehicle 2001.
- the electronic control unit 2010 may also be called an ECU (Electronic Control Unit).
- Signals from the various sensors 2021-2029 include a current signal from a current sensor 2021 that senses the motor current, a front and rear wheel rotation speed signal obtained by a rotation speed sensor 2022, a front and rear wheel air pressure signal obtained by an air pressure sensor 2023, a vehicle speed signal obtained by a vehicle speed sensor 2024, an acceleration signal obtained by an acceleration sensor 2025, an accelerator pedal depression amount signal obtained by an accelerator pedal sensor 2029, a brake pedal depression amount signal obtained by a brake pedal sensor 2026, a shift lever operation signal obtained by a shift lever sensor 2027, and a detection signal for detecting obstacles, vehicles, pedestrians, etc. obtained by an object detection sensor 2028.
- the information service unit 2012 is composed of various devices, such as a car navigation system, an audio system, speakers, a television, and a radio, for providing (outputting) various information such as driving information, traffic information, and entertainment information, and one or more ECUs for controlling these devices.
- the information service unit 2012 uses information acquired from external devices via the communication module 2013, etc., to provide various multimedia information and multimedia services to the occupants of the vehicle 2001.
- the information service unit 12 may include input devices (e.g., a keyboard, a mouse, a microphone, a switch, a button, a sensor, a touch panel, etc.) that accept input from the outside, and may also include output devices (e.g., a display, a speaker, an LED lamp, a touch panel, etc.) that perform output to the outside.
- input devices e.g., a keyboard, a mouse, a microphone, a switch, a button, a sensor, a touch panel, etc.
- output devices e.g., a display, a speaker, an LED lamp, a touch panel, etc.
- the driving assistance system unit 2030 is composed of various devices that provide functions for preventing accidents and reducing the driving burden on the driver, such as a millimeter wave radar, LiDAR (Light Detection and Ranging), a camera, a positioning locator (e.g., GNSS, etc.), map information (e.g., high definition (HD) maps, autonomous vehicle (AV) maps, etc.), a gyro system (e.g., IMU (Inertial Measurement Unit), INS (Inertial Navigation System), etc.), AI (Artificial Intelligence) chip, and AI processor, as well as one or more ECUs that control these devices.
- the driving assistance system unit 2030 transmits and receives various information via the communication module 2013 to realize driving assistance functions or autonomous driving functions.
- the communication module 2013 can communicate with the microprocessor 2031 and components of the vehicle 2001 via the communication port.
- the communication module 2013 transmits and receives data via the communication port 2033 between the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, shift lever 2006, front wheels 2007, rear wheels 2008, axle 2009, microprocessor 2031 and memory (ROM, RAM) 2032 in the electronic control unit 2010, and sensors 2021 to 29, which are provided on the vehicle 2001.
- 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 the 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, etc.
- the communication module 2013 may transmit at least one of the signals from the various sensors 2021-2029 described above input to the electronic control unit 2010, information obtained based on the signals, and information based on input from the outside (user) obtained via the information service unit 2012 to an external device via wireless communication.
- the electronic control unit 2010, the various sensors 2021-2029, the information service unit 2012, etc. may be referred to as input units that accept 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, vehicle distance information, etc.) transmitted from an external device, and displays it on the information service unit 2012 provided in the vehicle 2001.
- the information service unit 2012 may be called an output unit that outputs information (for example, outputs information to a device such as a display or speaker based on the PDSCH (or data/information decoded from the PDSCH) received by the communication module 2013).
- the communication module 2013 also stores various information received from external devices in memory 2032 that can be used by the microprocessor 2031. Based on the information stored in memory 2032, the microprocessor 2031 may control the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, shift lever 2006, front wheels 2007, rear wheels 2008, axles 2009, sensors 2021 to 2029, and the like provided on the vehicle 2001.
- determining may encompass a wide variety of actions.
- Determining and “determining” may include, for example, judging, calculating, computing, processing, deriving, investigating, looking up, searching, inquiring (e.g., searching in a table, database, or other data structure), ascertaining, and the like.
- Determining and “determining” may also include receiving (e.g., receiving information), transmitting (e.g., sending information), input, output, accessing (e.g., accessing data in a memory), and the like.
- Determining” and “determining” may also include resolving, selecting, choosing, establishing, comparing, and the like.
- judgment and “decision” can include regarding some action as having been “judged” or “decided.”
- judgment (decision) may be interpreted as “assuming,””expecting,””considering,” etc.
- connection refers to any direct or indirect connection or coupling between two or more elements, and may include the presence of one or more intermediate elements between two elements that are “connected” or “coupled” to each other.
- the coupling or connection between elements may be physical, logical, or a combination thereof.
- “connected” may be read as "access”.
- two elements may be considered to be “connected” or “coupled” to each other using at least one of one or more wires, cables, and printed electrical connections, as well as electromagnetic energy having wavelengths in the radio frequency range, microwave range, and optical (both visible and invisible) range, as some non-limiting and non-exhaustive examples.
- the reference signal may be abbreviated as RS (Reference Signal) or may be called a pilot depending on the applicable standard.
- a radio frame may be composed of one or more frames in the time domain. Each of the one or more frames in the time domain may be called a subframe. A subframe may further be composed of one or more slots in the time domain. A subframe may have a fixed time length (e.g., 1 ms) that is independent of numerology.
- Numerology may be a communication parameter that applies to at least one of the transmission and reception of a signal or channel. Numerology may indicate, for example, at least one of the following: Subcarrier Spacing (SCS), bandwidth, symbol length, cyclic prefix length, Transmission Time Interval (TTI), number of symbols per TTI, radio frame structure, a particular filtering process performed by the transceiver in the frequency domain, a particular windowing process performed by the transceiver in the time domain, etc.
- SCS Subcarrier Spacing
- TTI Transmission Time Interval
- radio frame structure a particular filtering process performed by the transceiver in the frequency domain, a particular windowing process performed by the transceiver in the time domain, etc.
- a slot may consist of one or more symbols in the time domain (such as Orthogonal Frequency Division Multiplexing (OFDM) symbols, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbols, etc.).
- OFDM Orthogonal Frequency Division Multiplexing
- SC-FDMA Single Carrier Frequency Division Multiple Access
- a slot may be a time unit based on numerology.
- a slot may include multiple minislots. Each minislot may consist of one or multiple symbols in the time domain. A minislot may also be called a subslot. A minislot may consist of fewer symbols than a slot.
- a PDSCH (or PUSCH) transmitted in a time unit larger than a minislot may be called PDSCH (or PUSCH) mapping type A.
- a PDSCH (or PUSCH) transmitted using a minislot may be called PDSCH (or PUSCH) mapping type B.
- Radio frame, subframe, slot, minislot, and symbol all represent time units for transmitting signals. Radio frame, subframe, slot, minislot, and symbol may each be referred to by a different name that corresponds to 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.
- at least one of the subframe and the TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (e.g., 1-13 symbols), or a period longer than 1 ms.
- the unit representing the TTI may be called a slot, minislot, etc., instead of a subframe.
- TTI refers to, for example, the smallest time unit for scheduling in wireless communication.
- a base station schedules each user terminal by allocating radio resources (such as frequency bandwidth and transmission power that can be used by each user terminal) in TTI units.
- radio resources such as frequency bandwidth and transmission power that can be used by each user terminal
- the TTI may be a transmission time unit for a channel-coded data packet (transport block), a code block, a code word, etc., or may be a processing unit for scheduling, link adaptation, etc.
- the time interval e.g., the number of symbols
- the time interval in which a transport block, a code block, a code word, etc. is actually mapped may be shorter than the TTI.
- one or more TTIs may be the minimum time unit of scheduling.
- the number of slots (minislots) that constitute the minimum time unit of scheduling may be controlled.
- a TTI having a time length of 1 ms may be referred to as a normal TTI (TTI in LTE Rel. 8-12), normal TTI, long TTI, normal subframe, normal subframe, long subframe, slot, etc.
- TTI shorter than a normal TTI may be referred to as a shortened TTI, short TTI, partial or fractional TTI, shortened subframe, short subframe, minislot, subslot, slot, etc.
- a long TTI (e.g., a normal TTI, a subframe, etc.) may be interpreted as a TTI having a time length of more than 1 ms
- a short TTI e.g., a shortened TTI, etc.
- TTI length shorter than the TTI length of a long TTI and equal to or greater than 1 ms.
- 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 the numerology, and may be, for example, 12.
- the number of subcarriers included in an RB may be determined based on the numerology.
- 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 may also be referred to as a physical resource block (PRB), a sub-carrier group (SCG), a resource element group (REG), a PRB pair, an RB pair, etc.
- PRB physical resource block
- SCG sub-carrier group
- REG resource element group
- PRB pair an RB pair, etc.
- a resource block may be composed of one or more resource elements (REs).
- REs resource elements
- one RE may be a radio resource area of one subcarrier and one symbol.
- a Bandwidth Part which may also be referred to as a partial bandwidth, may represent a subset of contiguous common resource blocks (RBs) for a given numerology on a given carrier, where the common RBs may be identified by an index of the RB relative to a common reference point of the carrier.
- PRBs may be defined in a BWP and numbered within the BWP.
- the BWP may include a BWP for UL (UL BWP) and a BWP for DL (DL BWP).
- UL BWP UL BWP
- DL BWP DL BWP
- One or more BWPs may be configured for a UE within one carrier.
- 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 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 subcarriers included in an RB, as well as the number of symbols in a TTI, the symbol length, and the cyclic prefix (CP) length can be changed in various ways.
- the "maximum transmit power” in this disclosure may mean the maximum value of transmit power, may mean the nominal UE maximum transmit power, or may mean the rated UE maximum transmit power.
- One aspect of the present disclosure is useful in wireless communication systems.
- Base station 101 Transmitter 102 Receiver 103 Controller 20 Terminal 201 Receiver 202 Transmitter 203 Controller
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Abstract
Description
図1は、デュアルコネクティビティ(DC)の例を示す図である。図1の例において、基地局10-1は、Master Node(MN)であってよい。基地局10-2は、Secondary Node(SN)であってよい。図1の例に示すように、DCでは、異なる基地局間のキャリアを束ねる。
PUCCHキャリア切り替えは、Time Division Duplex(TDD)方式において、HARQ-ACKフィードバックのレイテンシの削減方法として検討されている。
RAN1 #111会合において、Rel-18のXRのために、CG拡張をサポートすることが合意された。
端末によるUplink Control Information(UCI)に基づく1つ以上の未使用のCG PUSCHオケージョン(unused CG PUSCH occasion)の動的指示(dynamic indication)をサポートする。
単一のCG PUSCH設定(CG PUSCH configuration)の期間(period)における複数のCG PUSCHオケージョン(multiple CG PUSCH)をサポートする。
上記したように、NRでは、Rel-16において、CG PUSCHのコンフィグレーションが規定された(例えば、非特許文献2)。CG PUSCHには、Type 1 CG PUSCHとType 2 CG PUSCHとがある。
Type 1 CG PUSCHの送信パラメータは、「configuredGrantConfig」、「pusch-Config」、及び「rrc-ConfiguredUplinkGrant」によって提供される。Type 1 CG PUSCHの活性化及び非活性化(activation/deactivation)は、RRC-configurationに依存し、Downlink Control Information(DCI)には依存しない。
Type 2 CG PUSCHの送信パラメータは、「configuredGrantConfig」、「pusch-Config」、及び「活性化DCI(activation DCI)」によって提供される。Type 2 CG PUSCHの活性化及び非活性化は、RRC-configuration及びDCIに依存する。1つのDCIは、1つのCG PUSCHを活性化することができ、複数のCG PUSCHを非活性化することができる。
図3及び図4は、configuredGrantConfigのパラメータを示した図である。図4に示すパラメータは、図3に示すパラメータに続く。図3及び図4に示すconfiguredGrantConfigのパラメータは、設定許可されたアップリンク送信を設定するために使用される。
Rel-17では、DCIフォーマットのTDRA(time domain resource assignment又はallocation)フィールドが、単一のSLIV(Start and length Indicator Value)を含む行(row)を示している場合、端末は、スケジューリング活性化又はスケジューリングリリースのために、設定されたUL grant Type 2 PDCCHを検証する(例えば、3GPP TS38.213 V17.3.0のセクション10.2を参照)。別言すれば、端末は、DCIがTDRAフィールドによって複数のSLIVを示す場合、活性化DCIを検証(validation)できない。なお、SLIVは、開始シンボルと連続するシンボルの数とを定義する。
上記の<Rel-18 XRにおけるCG拡張>で述べたように、Rel-18のXRのために、CG拡張をサポートすることが合意された。しかし、Rel-18のXRといった大容量通信においては、単一のCG PUSCH設定における複数のCG PUSCHオケージョンの設定について下記の検討の余地がある。
Type 1 CG PUSCH関連の設定
Type 2 CG PUSCH関連の設定と活性化DCIの検証
なお、<活性化DCIの検証>で述べたように、現在の仕様では、端末は、DCIがTDRAフィールドによって複数のSLIVを示す場合、活性化DCIを検証できない。
1つのCG期間における複数のCG PUSCHオケージョンに対する制限の可能性
提案1は、検討1のType 1 CG PUSCH関連の設定を規定することで、大容量通信における複数のCG PUSCHオケージョンを適切に設定する。提案1は、オプション1とオプション2とを有してもよい。
提案1のオプション1では、Type 1 CG PUSCH設定のために、1つのCG期間において、複数のCG PUSCHオケージョンをサポートしない。
端末は、複数のSLIVを指示する「rrc-ConfiguredUplinkGrant」内の「timeDomainAllocation」を期待しない。「rrc-ConfiguredUplinkGrant」は、アップリンク許可の設定に関するRRCのパラメータであり、「timeDomainAllocation」は、時間リソースの配置に関するパラメータである。
端末は、1つのCG期間におけるCG PUSCHオケージョンの数を示すRRCパラメータが、Type 1 CG PUSCHのために設定されることを期待しない。
提案1のオプション2では、Type 1 CG PUSCH設定のために、1つのCG期間において、複数のCG PUSCHオケージョンをサポートする。
端末は、「rrc-ConfiguredUplinkGrant」内の「timeDomainAllocation」が複数のSLIVを示している場合、1つのCG期間における複数のCG PUSCHオケージョンを期待(サポート)する。
端末は、1つのCG期間におけるCG PUSCH オケージョンの数が、Type 1 CG PUSCHのために設定されている場合、1つのCG期間における複数のCG PUSCHオケージョンを期待(サポート)する。
未使用のCG PUSCHオケージョンの動的指示が、Type 1 CG PUSCH設定のために有効にされる。
Type 1 CG PUSCH設定の物理優先度(physical priority)が、High及びLowのいずれか一方に指示される。
レピティション(Type A又はType B)が、Type 1 CG PUSCH設定のために設定されない。
Multi-TPR送信がType 1 CG PUSCH設定のために設定されない。TPRは、Transmission and Reception Pointの略である。
「cg-SDT-Configuration」が、「rrc-ConfiguredUplinkGrant」において設定されない。
CG PUSCHの周期がXシンボルよりも大きい。または、CG PUSCHの周期が、指示された複数のSLIVのスロット数よりも大きい。別言すれば、設定された複数のCG PUSCHオケージョンが、CG期間内に送信されるように、CG PUSCHの周期が設定される。
端末は、1又は2以上の上記条件が満たされない場合、1つのCG期間において、1つのCG PUSCHオケージョンを送信してもよい。
端末は、1つの期間における、Type 1 CG PUSCHのための複数のCG PUSCHオケージョンをサポートするか否かを、上位レイヤシグナリングのパラメータに基づいて決定する。この動作により、端末は、大容量通信における複数のCG PUSCHオケージョンを適切に設定できる。
提案2は、検討2のType 2 CG PUSCH関連の設定及び活性化DCIの検証を規定することで、大容量通信における複数のCG PUSCHオケージョンを適切に設定する。
1つのCG期間における複数のCG PUSCHオケージョンのためのTDRAが、1つのTDRA行における個別のSLIVによって指示される。
未使用のCG PUSCHオケージョンの動的指示が、Type 2 CG PUSCH設定のために有効にされる。
Type 1 CG PUSCH設定の物理優先度が、High及びLowのいずれか一方に指示される。
レピティション(Type A又はType B)が、Type 2 CG PUSCH設定のために設定されない。
Multi-TPR送信がType 2 CG PUSCH設定のために設定されない。
CG PUSCHの周期がXシンボルよりも大きい。または、CG PUSCHの周期が、指示された複数のSLIVのスロット数よりも大きい。別言すれば、設定された複数のCG PUSCHオケージョンが、CG期間内に送信されるように、CG PUSCHの周期が設定される。
端末は、いずれかの1又は2以上の上記条件が満たされない場合、DCIを活性化DCIとして検証してもよい。そして、端末は、最初又は最後のSLIVに基づいて、1つのCG期間に1つのCG PUSCHオケージョンのみを送信してもよい。
1つのCG期間における複数のCG PUSCHオケージョンのTDRAは、最初のCG PUSCHオケージョンのTDRAと、1つのCG期間におけるCG PUSCHオケージョンの数とに基づいて決定される。提案2の仮定2は、さらに2つの仮定2-1,2-1に分けられる。
1つのCG期間におけるCG PUSCHオケージョンの数は、活性化DCIによって指示される。
1つのCG期間における複数のCG PUSCHオケージョンを有効にすることがType 2 CG PUSCH設定のために設定される。
未使用のCG PUSCHオケージョンの動的指示が、Type 2 CG PUSCH設定のために有効にされる。
Type 1 CG PUSCH設定の物理優先度が、High及びLowのいずれか一方に指示される。
レピティション(Type A又はType B)が、Type 2 CG PUSCH設定のために設定されない。
Multi-TPR送信がType 2 CG PUSCH設定のために設定されない。
CG PUSCHの周期がXシンボルよりも大きい。または、CG PUSCHの周期が、指示された複数のSLIVのスロット数よりも大きい。別言すれば、設定された複数のCG PUSCHオケージョンが、CG期間内に送信されるように、CG PUSCHの周期が設定される。
端末は、いずれかの1又は2以上の上記条件が満たされない場合、DCIを活性化DCIとして検証してもよい。そして、端末は、1つのCG期間において1つのCG PUSCHオケージョンのみを送信してもよい。
1つのCG期間におけるCG PUSCHオケージョンの数は、Type 2 CG PUSCH設定によって指示される。例えば、1つのCG期間におけるCG PUSCHオケージョンの数は、「ConfiguredGrantConfig」といった上位レイヤシグナリングのパラメータによって指示される。
未使用のCG PUSCHオケージョンの動的指示が、Type 2 CG PUSCH設定のために有効にされる。
Type 1 CG PUSCH設定の物理優先度が、High及びLowのいずれか一方に指示される。
レピティション(Type A又はType B)が、Type 2 CG PUSCH設定のために設定されない。
Multi-TPR送信がType 2 CG PUSCH設定のために設定されない。
CG PUSCHの周期がXシンボルよりも大きい。または、CG PUSCHの周期が、指示された複数のSLIVのスロット数よりも大きい。別言すれば、設定された複数のCG PUSCHオケージョンが、CG期間内に送信されるように、CG PUSCHの周期が設定される。
端末は、1又は2以上の上記条件が満たされない場合、1つのCG期間において、1つのCG PUSCHオケージョンを送信してもよい。
端末は、1つの期間における、Type 2 CG PUSCHのための複数のCG PUSCHオケージョン各々を、個別のTDRAに基づいて決定する。この動作により、端末は、大容量通信における複数のCG PUSCHオケージョンを適切に設定できる。
提案3は、検討3の1つのCG期間における複数のCG PUSCHオケージョンに対する制限を規定することで、大容量通信における複数のCG PUSCHオケージョンを適切に設定する。提案3は、オプション1とオプション2とを有してもよい。
端末は、「rep-K」が「ConfiguredGrantConfig」において値Kに設定され、かつ、提案1及び提案2で説明したように、CG PUSCH設定のために1つのCG期間において複数のPUSCH オケージョンを決定する場合、次のAlt.1-Alt.3の送信動作を行う。
提案3のAlt.1では、1つのCG期間において、レピティションと複数のCG PUSCHオケージョンとのジョイント動作が許されず、複数のCG PUSCHオケージョンが、レピティションよりも優先される。
提案3のAlt.2では、1つのCG期間において、レピティションと複数のCG PUSCHオケージョンとのジョイント動作が許される。
提案3のAlt.3では、1つのCG期間において、レピティションと複数のCG PUSCHオケージョンとのジョイント動作が許されず、レピティションが、複数のCG PUSCHオケージョンよりも優先される。
提案3のオプション2では、1つのCG期間における複数のCG PUSCHオケージョンに対するTDRAのその他の可能なバリエーションについて説明する。
1スロットにおけるCG PUSCHオケージョンの数が、最大Xに制限される。
1つのCG期間における複数のCG PUSCHオケージョンが、最大Yスロットに制限される。
X及び/又はYの値は、仕様によって定義されてもよい。X及び/又はYの値は、RRCといった上位レイヤシグナリングのパラメータによって設定されてもよい。X及び/又はYの値は、端末能力情報(UE capability)によって報告されてもよい。
端末は、1つの期間におけるCG PUSCHオケージョンと、CG PUSCHオケージョンにおけるレピティションとを、上位レイヤシグナリングのパラメータに基づいて決定する。この動作により、大容量通信における複数のCG PUSCHオケージョンを適切に設定する。
端末は、1つのCG期間におけるCG PUSCHオケージョンの数が動的に更新されてもよい。端末は、1つのCG期間における複数のCG PUSCHオケージョンのためのTDRAが動的に更新されてもよい。動的な更新は、既存のDCI及び/又は新たなDCI及び/又は活性化DCI及び/又はMAC CEによって行われてもよい。MAC CEは、Media Access Control Control Elementの略である。
端末は、以下の端末能力情報を、基地局に報告してもよい。
・1つのCG期間において、PUSCHレピティションと複数のCG PUSCHオケージョンとのジョイント動作をサポートするかどうかを定義する情報
・1つのCG期間における複数のCG PUSCHオケージョンの端末能力に対する前提条件機能及び/又は能力が、以下の1つ又は複数を有すること
・・複数のPUSCHをスケジュールする単一のDCI(Rel-17能力)
・・サービングセルのBWPに対する複数のアクティブな設定許可された設定(multiple active configured grant configurations)
・・UCIによる未使用のCG PUSCHオケージョンの動的表示の報告
図6は、基地局10の構成の一例を示すブロック図である。基地局10は、例えば、送信部101と、受信部102と、制御部103と、を含む。基地局10は、端末20(図7参照)と無線によって通信する。
図7は、端末20の構成の一例を示すブロック図である。端末20は、例えば、受信部201と、送信部202と、制御部203と、を含む。端末20は、例えば、基地局10と無線によって通信する。
上記実施形態の説明に用いたブロック図は、機能単位のブロックを示している。これらの機能ブロック(構成部)は、ハードウェア及びソフトウェアの少なくとも一方の任意の組み合わせによって実現される。また、各機能ブロックの実現方法は特に限定されない。すなわち、各機能ブロックは、物理的又は論理的に結合した1つの装置を用いて実現されてもよいし、物理的又は論理的に分離した2つ以上の装置を直接的又は間接的に(例えば、有線、無線などを用いて)接続し、これら複数の装置を用いて実現されてもよい。機能ブロックは、上記1つの装置又は上記複数の装置にソフトウェアを組み合わせて実現されてもよい。
情報の通知は、本開示において説明した実施の形態に限られず、他の方法を用いて行われてもよい。例えば、情報の通知は、物理レイヤシグナリング(例えば、DCI(Downlink Control Information)、UCI(Uplink Control Information))、上位レイヤシグナリング(例えば、RRC(Radio Resource Control)シグナリング、MAC(Medium Access Control)シグナリング、報知情報(MIB(Master Information Block)、SIB(System Information Block)))、その他の信号又はこれらの組み合わせによって実施されてもよい。また、RRCシグナリングは、RRCメッセージと呼ばれてもよく、例えば、RRC接続セットアップ(RRC Connection Setup)メッセージ、RRC接続再構成(RRC Connection Reconfiguration)メッセージなどであってもよい。
本開示において説明した実施の形態は、LTE(Long Term Evolution)、LTE-A(LTE-Advanced)、SUPER 3G、IMT-Advanced、4G(4th generation mobile communication system)、5G(5th generation mobile communication system)、6th generation mobile communication system(6G)、xth generation mobile communication system(xG)(xG(xは、例えば整数、小数))、FRA(Future Radio Access)、NR(new Radio)、New radio access(NX)、Future generation radio access(FX)、W-CDMA(登録商標)、GSM(登録商標)、CDMA2000、UMB(Ultra Mobile Broadband)、IEEE 802.11(Wi-Fi(登録商標))、IEEE 802.16(WiMAX(登録商標))、IEEE 802.20、UWB(Ultra-WideBand)、Bluetooth(登録商標)、その他の適切なシステムを利用するシステム及びこれらに基づいて拡張、修正、作成、規定された次世代システムの少なくとも一つに適用されてもよい。また、複数のシステムが組み合わされて(例えば、LTE及びLTE-Aの少なくとも一方と5Gとの組み合わせ等)適用されてもよい。
本開示において説明した各態様/実施形態の処理手順、シーケンス、フローチャートなどは、矛盾の無い限り、順序を入れ替えてもよい。例えば、本開示において説明した方法については、例示的な順序を用いて様々なステップの要素を提示しており、提示した特定の順序に限定されない。
本開示において基地局によって行われるとした特定動作は、場合によってはその上位ノード(upper node)によって行われることもある。基地局を有する1つ又は複数のネットワークノード(network nodes)からなるネットワークにおいて、端末との通信のために行われる様々な動作は、基地局及び基地局以外の他のネットワークノード(例えば、MME又はS-GWなどが考えられるが、これらに限られない)の少なくとも1つによって行われ得ることは明らかである。上記において基地局以外の他のネットワークノードが1つである場合を例示したが、複数の他のネットワークノードの組み合わせ(例えば、MME及びS-GW)であってもよい。
情報等(<情報、信号>の項目参照)は、上位レイヤ(又は下位レイヤ)から下位レイヤ(又は上位レイヤ)へ出力され得る。複数のネットワークノードを介して入出力されてもよい。
入出力された情報等は特定の場所(例えば、メモリ)に保存されてもよいし、管理テーブルを用いて管理してもよい。入出力される情報等は、上書き、更新、又は追記され得る。出力された情報等は削除されてもよい。入力された情報等は他の装置へ送信されてもよい。
判定は、1ビットで表される値(0か1か)によって行われてもよいし、真偽値(Boolean:true又はfalse)によって行われてもよいし、数値の比較(例えば、所定の値との比較)によって行われてもよい。
本開示において説明した各態様/実施形態は単独で用いてもよいし、組み合わせて用いてもよいし、実行に伴って切り替えて用いてもよい。また、所定の情報の通知(例えば、「Xであること」の通知)は、明示的に行うものに限られず、暗黙的(例えば、当該所定の情報の通知を行わない)ことによって行われてもよい。
ソフトウェアは、ソフトウェア、ファームウェア、ミドルウェア、マイクロコード、ハードウェア記述言語と呼ばれるか、他の名称で呼ばれるかを問わず、命令、命令セット、コード、コードセグメント、プログラムコード、プログラム、サブプログラム、ソフトウェアモジュール、アプリケーション、ソフトウェアアプリケーション、ソフトウェアパッケージ、ルーチン、サブルーチン、オブジェクト、実行可能ファイル、実行スレッド、手順、機能などを意味するよう広く解釈されるべきである。
本開示において説明した情報、信号などは、様々な異なる技術のいずれかを使用して表されてもよい。例えば、上記の説明全体に渡って言及され得るデータ、命令、コマンド、情報、信号、ビット、シンボル、チップなどは、電圧、電流、電磁波、磁界若しくは磁性粒子、光場若しくは光子、又はこれらの任意の組み合わせによって表されてもよい。
本開示において使用する「システム」及び「ネットワーク」という用語は、互換的に使用される。
また、本開示において説明した情報、パラメータなどは、絶対値を用いて表されてもよいし、所定の値からの相対値を用いて表されてもよいし、対応する別の情報を用いて表されてもよい。例えば、無線リソースはインデックスによって指示されるものであってもよい。
本開示においては、「基地局(BS:Base Station)」、「無線基地局」、「固定局(fixed station)」、「NodeB」、「eNodeB(eNB)」、「gNodeB(gNB)」、「アクセスポイント(access point)」、「送信ポイント(transmission point)」、「受信ポイント(reception point)、「送受信ポイント(transmission/reception point)」、「セル」、「セクタ」、「セルグループ」、「キャリア」、「コンポーネントキャリア」などの用語は、互換的に使用され得る。基地局は、マクロセル、スモールセル、フェムトセル、ピコセルなどの用語で呼ばれる場合もある。
本開示においては、「移動局(MS:Mobile Station)」、「ユーザ端末(user terminal)」、「ユーザ装置(UE:User Equipment)」、「端末」などの用語は、互換的に使用され得る。
基地局及び移動局の少なくとも一方は、送信装置、受信装置、通信装置などと呼ばれてもよい。なお、基地局及び移動局の少なくとも一方は、移動体に搭載されたデバイス、移動体自体などであってもよい。当該移動体は、移動可能な物体をいい、移動速度は任意である。また移動体が停止している場合も当然含む。当該移動体は、例えば、車両、輸送車両、自動車、自動二輪車、自転車、コネクテッドカー、ショベルカー、ブルドーザー、ホイールローダー、ダンプトラック、フォークリフト、列車、バス、リヤカー、人力車、船舶(ship and other watercraft)、飛行機、ロケット、人工衛星、ドローン(登録商標)、マルチコプター、クアッドコプター、気球、およびこれらに搭載される物を含み、またこれらに限らない。また、当該移動体は、運行指令に基づいて自律走行する移動体であってもよい。乗り物(例えば、車、飛行機など)であってもよいし、無人で動く移動体(例えば、ドローン、自動運転車など)であってもよいし、ロボット(有人型又は無人型)であってもよい。なお、基地局及び移動局の少なくとも一方は、必ずしも通信動作時に移動しない装置も含む。例えば、基地局及び移動局の少なくとも一方は、センサなどのIoT(Internet of Things)機器であってもよい。
本開示で使用する「判断(determining)」、「決定(determining)」という用語は、多種多様な動作を包含する場合がある。「判断」、「決定」は、例えば、判定(judging)、計算(calculating)、算出(computing)、処理(processing)、導出(deriving)、調査(investigating)、探索(looking up、search、inquiry)(例えば、テーブル、データベース又は別のデータ構造での探索)、確認(ascertaining)した事を「判断」「決定」したとみなす事などを含み得る。また、「判断」、「決定」は、受信(receiving)(例えば、情報を受信すること)、送信(transmitting)(例えば、情報を送信すること)、入力(input)、出力(output)、アクセス(accessing)(例えば、メモリ中のデータにアクセスすること)した事を「判断」「決定」したとみなす事などを含み得る。また、「判断」、「決定」は、解決(resolving)、選択(selecting)、選定(choosing)、確立(establishing)、比較(comparing)などした事を「判断」「決定」したとみなす事を含み得る。つまり、「判断」「決定」は、何らかの動作を「判断」「決定」したとみなす事を含み得る。また、「判断(決定)」は、「想定する(assuming)」、「期待する(expecting)」、「みなす(considering)」などで読み替えられてもよい。
参照信号は、RS(Reference Signal)と略称することもでき、適用される標準によってパイロット(Pilot)と呼ばれてもよい。
本開示において使用する「に基づいて」という記載は、別段に明記されていない限り、「のみに基づいて」を意味しない。言い換えれば、「に基づいて」という記載は、「のみに基づいて」と「に少なくとも基づいて」の両方を意味する。
本開示において使用する「第1の」、「第2の」などの呼称を使用した要素へのいかなる参照も、それらの要素の量又は順序を全般的に限定しない。これらの呼称は、2つ以上の要素間を区別する便利な方法として本開示において使用され得る。したがって、第1及び第2の要素への参照は、2つの要素のみが採用され得ること、又は何らかの形で第1の要素が第2の要素に先行しなければならないことを意味しない。
上記の各装置の構成における「手段」を、「部」、「回路」、「デバイス」等に置き換えてもよい。
本開示において、「含む(include)」、「含んでいる(including)」及びそれらの変形が使用されている場合、これらの用語は、用語「備える(comprising)」と同様に、包括的であることが意図される。さらに、本開示において使用されている用語「又は(or)」は、排他的論理和ではないことが意図される。
無線フレームは時間領域において1つ又は複数のフレームによって構成されてもよい。時間領域において1つ又は複数の各フレームはサブフレームと呼ばれてもよい。サブフレームは更に時間領域において1つ又は複数のスロットによって構成されてもよい。サブフレームは、ニューメロロジー(numerology)に依存しない固定の時間長(例えば、1ms)であってもよい。
本開示に記載の「最大送信電力」は、送信電力の最大値を意味してもよいし、公称最大送信電力(the nominal UE maximum transmit power)を意味してもよいし、定格最大送信電力(the rated UE maximum transmit power)を意味してもよい。
本開示において、例えば、英語でのa、an及びtheのように、翻訳により冠詞が追加された場合、本開示は、これらの冠詞の後に続く名詞が複数形であることを含んでもよい。
本開示において、「AとBが異なる」という用語は、「AとBが互いに異なる」ことを意味してもよい。なお、当該用語は、「AとBがそれぞれCと異なる」ことを意味してもよい。「離れる」、「結合される」などの用語も、「異なる」と同様に解釈されてもよい。
101 送信部
102 受信部
103 制御部
20 端末
201 受信部
202 送信部
203 制御部
Claims (6)
- 上位レイヤシグナリングのパラメータを受信する受信部と、
上り信号の送信の活性化及び非活性化を、下り制御信号と上位レイヤシグナリングのパラメータとに基づいて決定する制御部と、
を有し、
前記制御部は、1つの期間における複数の上り信号のオケージョン各々を、個別の時間リソース割り当て情報に基づいて決定する、
端末。 - 上位レイヤシグナリングのパラメータを受信する受信部と、
上り信号の送信の活性化及び非活性化を、下り制御信号と上位レイヤシグナリングのパラメータとに基づいて決定する制御部と、
を有し、
前記制御部は、1つの期間における複数の上り信号のオケージョン各々を、1つの時間リソース割り当て情報と前記複数の上り信号のオケージョンの数とに基づいて決定する、
端末。 - 前記制御部は、前記複数の上り信号のオケージョンの数を、下り制御信号を介して受信する、
請求項2に記載の端末。 - 前記制御部は、前記複数の上り信号のオケージョンの数を、上位レイヤシグナリングのパラメータを介して受信する、
請求項2に記載の端末。 - 端末が、
上位レイヤシグナリングのパラメータを受信し、
上り信号の送信の活性化及び非活性化を、下り制御信号と上位レイヤシグナリングのパラメータとに基づいて決定し、
1つの期間における複数の上り信号のオケージョン各々を、個別の時間リソース割り当て情報に基づいて決定する、
通信方法。 - 端末が、
上位レイヤシグナリングのパラメータを受信し、
上り信号の送信の活性化及び非活性化を、下り制御信号と上位レイヤシグナリングのパラメータとに基づいて決定し、
1つの期間における複数の上り信号のオケージョン各々を、1つの時間リソース割り当て情報と前記複数の上り信号のオケージョンの数とに基づいて決定する、
通信方法。
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| JP2024569922A JPWO2024150342A5 (ja) | 2023-01-11 | 端末、基地局、無線システム、及び通信方法 | |
| EP23915965.0A EP4651596A1 (en) | 2023-01-11 | 2023-01-11 | Terminal and communication method |
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| WO2022084525A1 (en) * | 2020-10-23 | 2022-04-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and apparatuses for enhanced configured grant for low-latency applications |
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| WO2021090438A1 (ja) * | 2019-11-07 | 2021-05-14 | 株式会社Nttドコモ | 端末及び通信方法 |
| WO2022084525A1 (en) * | 2020-10-23 | 2022-04-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and apparatuses for enhanced configured grant for low-latency applications |
Non-Patent Citations (2)
| Title |
|---|
| See also references of EP4651596A1 * |
| XUEMING PAN, VIVO: "Discussion on XR specific capacity enhancements", 3GPP TSG RAN WG1 #111, R1-2211025, 7 November 2022 (2022-11-07), XP052221590 * |
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