WO2021005803A1 - Terminal et procédé de communication sans fil - Google Patents

Terminal et procédé de communication sans fil Download PDF

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Publication number
WO2021005803A1
WO2021005803A1 PCT/JP2019/027615 JP2019027615W WO2021005803A1 WO 2021005803 A1 WO2021005803 A1 WO 2021005803A1 JP 2019027615 W JP2019027615 W JP 2019027615W WO 2021005803 A1 WO2021005803 A1 WO 2021005803A1
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Prior art keywords
channel
reference signal
uplink
resource
transmission
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PCT/JP2019/027615
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English (en)
Japanese (ja)
Inventor
翔平 吉岡
優元 ▲高▼橋
聡 永田
リフェ ワン
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NTT Docomo Inc
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NTT Docomo Inc
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Priority to PCT/JP2019/027615 priority Critical patent/WO2021005803A1/fr
Priority to CN201980098339.0A priority patent/CN114097285B/zh
Publication of WO2021005803A1 publication Critical patent/WO2021005803A1/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
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present disclosure relates to terminals and wireless communication methods in next-generation mobile communication systems.
  • LTE Long Term Evolution
  • 3GPP Rel.10-14 LTE-Advanced (3GPP Rel.10-14) has been specified for the purpose of further increasing the capacity and sophistication of LTE (Third Generation Partnership Project (3GPP) Release (Rel.) 8, 9).
  • a successor system to LTE for example, 5th generation mobile communication system (5G), 5G + (plus), New Radio (NR), 3GPP Rel.15 or later, etc.) is also being considered.
  • 5G 5th generation mobile communication system
  • 5G + plus
  • NR New Radio
  • 3GPP Rel.15 or later, etc. is also being considered.
  • the user terminal In the existing LTE system (for example, 3GPP Rel.8-14), the user terminal (UE: User Equipment) is based on the downlink control information (DCI: Downlink Control Information, DL assignment, etc.) from the base station. , Controls the reception of downlink shared channels (for example, PDSCH: Physical Downlink Shared Channel). Further, the user terminal controls transmission of an uplink shared channel (for example, PUSCH: Physical Uplink Shared Channel) based on DCI (also referred to as UL grant or the like).
  • DCI Downlink Control Information
  • DL assignment Downlink assignment
  • DCI Downlink Control Information
  • PDSCH Physical Downlink Shared Channel
  • the user terminal controls transmission of an uplink shared channel (for example, PUSCH: Physical Uplink Shared Channel) based on DCI (also referred to as UL grant or the like).
  • a plurality of data having different requirements are transmitted to the same or a plurality of UEs.
  • a plurality of data having different requirements are transmitted from the same or a plurality of UEs.
  • one of the purposes of the present disclosure is to provide a terminal and a wireless communication method capable of appropriately transmitting or receiving a plurality of data having different requirements.
  • a terminal is a transmission unit that transmits at least one of an uplink shared channel and an uplink reference signal, and when the uplink shared channel and the uplink reference signal are set or assigned to the same resource, the uplink sharing It is characterized by having a control unit that performs different transmission operations based on the type of channel.
  • FIG. 1A and 1B are diagrams showing an example of collision between a channel and a reference signal.
  • 2A and 2B are diagrams showing an example of a mapping operation when the DL channel and the DL reference signal collide with each other.
  • 3A and 3B are diagrams showing an example of a mapping operation when the UL channel and the UL reference signal collide with each other.
  • FIG. 4 is a diagram showing an example of a schematic configuration of a wireless communication system according to an embodiment.
  • FIG. 5 is a diagram showing an example of the configuration of the base station according to the embodiment.
  • FIG. 6 is a diagram showing an example of the configuration of the user terminal according to the embodiment.
  • FIG. 7 is a diagram showing an example of the hardware configuration of the base station and the user terminal according to the embodiment.
  • the DL data (for example, DL-SCH) is mapped to a predetermined allocated resource (for example, PDSCH) and transmitted.
  • a predetermined allocated resource may be notified to the UE from the network (for example, a base station) by using at least one of downlink control information (for example, DCI) and higher layer signaling.
  • the PDSCH used for transmitting DL data is a demodulation reference signal (for example, DM-RS), a channel state information reference signal (for example, CSI-RS), and a phase tracking reference. It is allocated to resources excluding signals (Phase Tracking Reference Signal (PTRS)), cell-specific reference signals (for example, Cell-specific Reference Signal (CRS)), and synchronization signal blocks (for example, SS / PBCH block).
  • CSI-RS includes periodic CSI-RS (Periodic CSI-RS), semi-persistent non-zero-power CSI-RS, and zero-power CSI-RS (Zero-power CSI-RS). It may be at least one of RS).
  • FIG. 1A shows an example of mapping between DL data (PDSCH) and CSI-RS.
  • PDSCH DL SPS
  • CSI-RS is transmitted in a 5-slot cycle.
  • the resource for PDSCH and the resource for DL reference signal overlap (or collide, also referred to as collision) in slot # 6.
  • PDSCH is allocated while avoiding the resources for CSI-RS.
  • the UE may perform reception processing on the assumption that PDSCH is allocated to the resources excluding the resource for CSI-RS.
  • the PDSCH corresponding to the high priority transmission type for example, URLLC
  • the DL reference signal for example, CSI-RS
  • the network (for example, a base station) side will increase the PDSCH allocation resources in consideration of the CSI-RS in the slot to which the CSI-RS is allocated.
  • the scheduling efficiency may decrease.
  • UL data allocation UL data (for example, UL-SCH) is mapped to a predetermined allocated resource (for example, PUSCH) and transmitted.
  • a predetermined allocated resource may be notified to the UE from the network (for example, a base station) by using at least one of downlink control information (for example, DCI) and higher layer signaling.
  • the PUSCH used for UL data transmission excludes the demodulation reference signal (for example, DM-RS) and the phase tracking reference signal (Phase Tracking Reference Signal (PTRS)). Is assigned to a resource. Further, when the PUSCH and the SRS are assigned to the same slot, the SRS is controlled to be transmitted after the PUSCH is transmitted.
  • the demodulation reference signal for example, DM-RS
  • the phase tracking reference signal Phase Tracking Reference Signal (PTRS)
  • FIG. 1B shows an example of mapping between UL data (PUSCH) and SRS.
  • a mini-slot for example, a predetermined number of symbols
  • -based repetitive transmission here, the number of repetitions 4
  • the resource for PUSCH and the resource for UL reference signal overlap (or also referred to as collision or collision) in slot # 11.
  • the PUSCH corresponding to the high priority transmission type for example, URLLC
  • the UL reference signal for example, SRS
  • the network (for example, base station) side controls the allocation (for example, PUSCH) so that the SRS and PUSCH do not collide.
  • the transmission of PUSCH may be delayed and the required conditions may not be satisfied.
  • the present inventors collide with transmission of a transmission type DL channel (for example, at least one of PDSCH and PDCCH) having a high priority in NR and another signal (for example, DL reference signal). Focusing on the case of this, the idea was to control the reception operation based on the type of downlink channel in such a case.
  • a transmission type DL channel for example, at least one of PDSCH and PDCCH
  • another signal for example, DL reference signal
  • the present inventors transmit a transmission type UL channel (for example, at least one of PUSCH and PUCCH) having a high priority in NR and another signal (for example, UL reference signal).
  • a transmission type UL channel for example, at least one of PUSCH and PUCCH
  • another signal for example, UL reference signal.
  • the following aspects show transmission / reception to which repeated transmission (or repetition) is applied, transmission / reception to which repeated transmission is not applied (or the number of repetitions is 1), transmission / reception using a semi-persistent schedule, and semi-persistent. It can be applied to both transmission and reception without using a schedule.
  • the following aspects may be applied to a collision between a channel transmitted by the same UE and a reference signal (intra-UE overlapping case), or a collision between a channel transmitted by different UEs and a reference signal (inter-UE). It may be applied to overlapping case).
  • the DL channel may be read as downlink shared channel transmission (for example, PDSCH transmission) and downlink control channel monitoring opportunity (PDCCH monitoring occurrence).
  • CSI-RS is taken as an example as the DL reference signal, but the DL reference signal is not limited to this, and may be PT-RS, CRS, or SS / PBCH block.
  • the DL channel may include a DL reference signal.
  • the DL channel collides with the DL reference signal may be set or assigned to the same resource as the DL reference signal (for example, at least one of a time resource and a frequency resource).
  • the time resource may be read as a symbol.
  • the DL channel and DL reference signal allocation rule (or mapping rule), or UE operation is controlled (or separately) based on the type (or transmission type) of the DL channel. , Supported).
  • the DL channel type a first type having a high priority and a second type having a lower priority than the first type will be described as an example, but the DL channel type is 2. Not limited to the type.
  • the first type may correspond to a predetermined traffic type (for example, URLLC transmission), and the second type may correspond to transmission other than the first type (for example, transmission not corresponding to URLLC transmission).
  • a predetermined traffic type for example, URLLC transmission
  • the second type may correspond to transmission other than the first type (for example, transmission not corresponding to URLLC transmission).
  • the first type may be a transmission scheduled with a high priority.
  • the priority may be determined based on at least one of the RNTI, DCI format, DCI field, control resource set, and search space that scrambles the CRC.
  • the UE may determine the priority (or transmission type) of a DL channel based on at least one of the RNTI, DCI format, DCI field, control resource set, and search space used for the DL channel. Good.
  • the first type DL channel may be set by higher layer signaling or the like.
  • a particular MCS table may be associated with the first type of DL channel. For example, the UE determines that the DL channel in which the MCS table in which the coding rate of the predetermined value or less (for example, the minimum or maximum coding rate is the predetermined value or less) is set is the first type. May be good.
  • the second type may be a transmission scheduled with a lower priority than the first type.
  • the priority may be determined based on at least one of the RNTI, DCI format, DCI field, control resource set, and search space that scrambles the CRC.
  • the UE may determine the priority (or transmission type) of a DL channel based on at least one of the RNTI, DCI format, DCI field, control resource set, and search space used for the DL channel. Good.
  • the second type DL channel may be set by higher layer signaling or the like.
  • a particular MCS table may be associated with the second type of DL channel. For example, the UE determines that the DL channel in which the MCS table in which the coding rate of the predetermined value or more (for example, the minimum or maximum coding rate is the predetermined value or more) is set is the second type. May be good.
  • the UE reception operation for the first type DL channel and the second type DL channel allocation rule or the first type DL channel and the second type DL channel is performed separately. You may.
  • the UE has a DL channel (eg, at least one of the PDSCH and PDCCH monitoring occasions) set or assigned to the same resource (eg, the same symbol) as the DL reference signal, and the DL channel is of the first type (or first type).
  • the DL channel may be read as a DL channel and a DL reference signal included in the DL channel (for example, DMRS corresponding to the DL channel).
  • the resources of the DL reference signal may be used for the DL channel and all DL reference signals may be dropped.
  • the UE may assume that the DL reference signal is dropped and the resource for the DL reference signal is used to transmit a DL channel (eg, at least one of DL data, DMRS, and DCI) (Figure). See 2A).
  • a DL channel eg, at least one of DL data, DMRS, and DCI
  • FIG. 2A shows a case where the first type DL channel (for example, DL SPS) is transmitted in a 2-slot cycle, and the DL reference signal (for example, CSI-RS) is transmitted in a 5-slot cycle.
  • the resource for the DL channel and the resource for the DL reference signal overlap (or are also referred to as collision or collision) in slot # 6.
  • the DL reference signal is not transmitted (dropped), and the resource of the DL reference signal is used to transmit the first type DL channel.
  • the DL signal requiring ultra-high reliability and low delay can be appropriately transmitted and the communication quality can be improved. Deterioration can be suppressed.
  • the DL channel may be mapped to the resource for the DL channel.
  • the UE may assume that the DL reference signal is mapped to the configured or allocated resource, but the DL reference signal is punctured in the DL channel resource.
  • the DL signal requiring ultra-high reliability and low delay can be appropriately transmitted and the communication quality can be improved. Deterioration can be suppressed. Further, since the DL reference signal can be transmitted to the DL reference signal resource that does not collide with the DL channel resource, the communication quality can be improved.
  • the DL reference signal (eg, remaining CSI-RS) may be transmitted.
  • the UE may assume that a DL channel (eg, at least one of DL data, DMRS, and DCI) is mapped to a configured or allocated resource, but that the DL reference signal resource punctures the DL channel. Good.
  • the resource for which the DL reference signal is set or allocated is small with respect to the resource for which the DL channel is set or allocated, even if the DL reference signal is transmitted using the resource of the DL channel, it is given to the transmission of the DL channel.
  • the impact is small. In such a case, it is possible to improve the communication quality by transmitting both the DL channel and the DL reference signal.
  • At least the resources of the DL reference signal may be controlled so as not to be used for the DL channel. That is, the allocation of the DL channel may be controlled except for the resource of the DL reference signal.
  • the UE may assume that a DL channel (eg, at least one of DL data, DMRS, and DCI) is mapped to a resource excluding the resource of the DL reference signal. In other words, the UE may assume that rate matching is applied.
  • the increase in the coding rate is suppressed even if the DL channel is allocated while avoiding the resource for the DL reference signal. be able to. In such a case, it is possible to improve the communication quality by transmitting both the DL channel and the DL reference signal.
  • At least the symbol of the DL reference signal may be controlled not to be used for the DL channel. That is, the allocation of the DL channel may be controlled except for the symbol to which the DL reference signal is assigned.
  • the UE is mapped (eg, postpone) to a different symbol with a DL channel (eg, at least one of DL data, DMRS, and DCI) set or assigned to a resource (eg, symbol) to which the DL reference signal is assigned. You may assume that.
  • the different symbols may be defined in the specification or may be notified from the base station to the UE by at least one of higher layer signaling and DCI.
  • Communication quality can be improved by transmitting both the DL channel and the DL reference signal.
  • Which of the above options 1-1 to 1-5 is applied may be determined based on a predetermined condition.
  • the UE may determine the reception operation based on a predetermined condition when the DL channel and the DL reference signal collide with each other.
  • the predetermined condition may be at least one of the information notified from the network (for example, the base station), the code rate of the DL channel, the parameters related to the overhead (for example, NPRB oh ), and the number of ports of the DL reference signal. Good.
  • the base station may notify the UE of the mapping rule when the DL channel and the DL reference signal collide, or the reception operation of the UE by using higher layer signaling or the like.
  • the UE controls the reception processing of the DL channel and the DL reference signal based on the information notified from the base station.
  • the mapping rule or the receiving operation to be applied may be notified for each type of DL channel, or the mapping rule or the receiving operation to be applied may be notified only to a specific type (for example, the first type).
  • the mapping rule or the reception operation of the UE may be determined based on the coding rate of the DL channel. For example, when the code rate of the DL channel (or the code rate of the DL channel when transmitting the DL reference signal) becomes higher than a predetermined value, option 1-1, 1-2, or 1-5 is applied. You may. On the other hand, option 1-4 may be applied when the code rate of the DL channel (or the code rate of the DL channel when transmitting the DL reference signal) is equal to or less than a predetermined value.
  • Mapping rules or UE receive behavior may be determined based on overhead parameters for the PDSCH (eg, N PRB oh ).
  • the overhead parameter for PDSCH (eg, N PRB oh ) indicates the overhead from other signals (eg, CSI-RS, PT-RS, etc.).
  • the N PRB oh indicates the number of resource elements (RE) of other signals in the PRB , and the N PRB oh may be a value configured by a higher layer parameter.
  • N PRB oh is the overhead indicated by the upper layer parameter (Xoh-PDSCH) and may be any value of 0, 6, 12 or 18. If the Xoh-PDSCH is not set (notified) in the UE, the Xoh-PDSCH may be set to 0.
  • the UE may determine TBS or the like based on N PRB oh .
  • options 1-1, 1-2 or 1-5 may be applied when the overhead parameter for PDSCH (eg, N PRB oh ) is greater than a predetermined value.
  • options 1-3 or 1-4 may be applied when the overhead parameter (for example, N PRB oh ) for PDSCH is equal to or less than a predetermined value.
  • the mapping rule or the reception operation of the UE may be determined based on the number of DL reference signal ports (for example, CSI-RS port). For example, options 1-1, 1-2, or 1-5 may be applied when the number of ports of the DL reference signal exceeds a predetermined value. On the other hand, option 1-2 or 1-4 may be applied when the number of ports of the DL reference signal is equal to or less than a predetermined value.
  • the UE has a DL channel (eg, at least one of the PDSCH and PDCCH monitoring occasions) set or assigned to the same resource (eg, the same symbol) as the DL reference signal, and the DL channel is of the second type (or second).
  • a type DL channel at least one of the following options 1-A to 1-B may be applied.
  • At least the resources of the DL reference signal may be controlled so that they are not utilized for the DL channel containing the DMRS (eg, at least one of the PDCCH and PDSCH). That is, the allocation of PDCCH and DMRS, or PDSCH and DMRS may be controlled except for the resource of the DL reference signal.
  • the UE may assume that DCI (or PDCCH) and DMRS, or DL data (or PDSCH) and DMRS are mapped to resources excluding the resource of the DL reference signal. In other words, the UE may assume that rate matching is applied (see FIG. 2B).
  • FIG. 2B shows a case where a second type DL channel (for example, DL SPS) is transmitted in a 2-slot cycle, and a DL reference signal (for example, CSI-RS) is transmitted in a 5-slot cycle.
  • a second type DL channel for example, DL SPS
  • a DL reference signal for example, CSI-RS
  • the resource for the DL channel and the resource for the DL reference signal overlap (or are also referred to as collision or collision) in slot # 6.
  • the DL channel including the DMRS for example, PDCCH and DMRS, or PDSCH and DMRS
  • the second type DL channel and the DL reference signal are transmitted.
  • the channel quality measurement is continued by giving priority to the transmission of the DL reference signal at the predetermined resource. It can be carried out.
  • At least the DL reference signal resource is not utilized for the DL channel (eg, at least one of the PDCCH and PDSCH) and the DL reference signal is controlled so that it is not duplicated in the same resource as the DMRS (eg, resource element (RE)).
  • the PDCCH or PDSCH may be allocated excluding the resource of the DL reference signal, and may be controlled so that the DMRS and the DL reference signal do not overlap.
  • the UE may assume that DCI (or PDCCH) or DL data (or PDSCH) is mapped to resources excluding the resource of the DL reference signal. Further, the UE may assume that the DL reference signal and the DMRS corresponding to the second type DL channel (PDCCH or PDSCH) are not received by the same resource (for example, RE).
  • DCI or PDCCH
  • DL data or PDSCH
  • the UE may assume that the DL reference signal and the DMRS corresponding to the second type DL channel (PDCCH or PDSCH) are not received by the same resource (for example, RE).
  • the channel quality measurement is continued by giving priority to the transmission of the DL reference signal at the predetermined resource. It can be carried out.
  • the reception processing is flexibly performed according to the required conditions by controlling the receiving operation of the mapping rule or the UE based on the type of the DL channel. Can be done. As a result, deterioration of communication quality can be suppressed.
  • the UL channel may be read as an uplink shared channel (for example, PUSCH) and an uplink control channel (for example, PUCCH).
  • PUCCH may be read as UCI.
  • the sounding reference signal (SRS) is taken as an example as the UL reference signal, but the UL reference signal is not limited to this, and may be a PT-RS.
  • the UL channel may include a UL reference signal.
  • the UL channel collides with the UL reference signal may be set or scheduled in the same resource as the UL reference signal (for example, at least one of a time resource and a frequency resource).
  • the time resource may be read as a symbol.
  • the UL channel type a first type having a high priority and a second type having a lower priority than the first type will be described as an example, but the UL channel type is 2. Not limited to the type.
  • the first type may correspond to a predetermined traffic type (for example, URLLC transmission), and the second type may correspond to transmission other than the first type (for example, transmission not corresponding to URLLC transmission).
  • a predetermined traffic type for example, URLLC transmission
  • the second type may correspond to transmission other than the first type (for example, transmission not corresponding to URLLC transmission).
  • the first type or the second type may be determined based on the method shown in the first aspect above.
  • the allocation rule of the first type UL channel and the second type UL channel, or the transmission operation of the UE for the first type UL channel and the second type UL channel is separated. You may go to.
  • the UL channel (eg, at least one of PUSCH and PUCCH) is set or scheduled to the same resource (eg, the same symbol) as the UL reference signal, and the UL channel is of the first type (or first type UL).
  • the UL channel may be read as a UL channel and a UL reference signal included in the UL channel (for example, DMRS corresponding to the UL channel).
  • the resources of the UL reference signal may be utilized for the UL channel and all UL reference signals may be dropped.
  • the UE may be controlled to drop the UL reference signal and utilize the resources for the UL reference signal to transmit a UL channel (eg, at least one of UL data, DMRS, and UCI) (FIG. See 3A).
  • a UL channel eg, at least one of UL data, DMRS, and UCI
  • a first type UL channel (eg, PUSCH repeat transmission (repetition factor 4)) is transmitted on a predetermined number of symbols or minislot basis, and a UL reference signal (eg, SRS) is transmitted in a 5-slot cycle. It shows the case where it is done.
  • the resource for the UL channel and the resource for the UL reference signal overlap (or are also referred to as collision) in slot # 11.
  • the UE may transmit (drop) the UL reference signal and utilize the resources of the UL reference signal to transmit the first type of UL channel.
  • the UL signal that requires ultra-high reliability and low delay can be appropriately transmitted and the communication quality can be improved. Deterioration can be suppressed.
  • the UL channel may be mapped to the resource for the UL channel.
  • the UE may assume that the UL reference signal is mapped to the configured or allocated resource, but the UL reference signal is punctured in the UL channel resource.
  • the UL signal that requires ultra-high reliability and low delay can be appropriately transmitted and the communication quality can be improved. Deterioration can be suppressed. Further, since the UL reference signal can be transmitted to the DL reference signal resource that does not collide with the UL channel resource, the communication quality can be improved.
  • the resources of the UL reference signal are used for the UL channel, but the UL reference signal (eg, SRS) may be transmitted.
  • the UE maps a UL channel (eg, at least one of UL data, DMRS, and UCI) to a configured or scheduled resource, but may control the UL reference signal resource to puncture the UL channel. ..
  • the UL channel is transmitted.
  • the effect is small. In such a case, it is possible to improve the communication quality by transmitting both the UL channel and the UL reference signal.
  • At least the resources of the UL reference signal may be controlled so that they are not used for the UL channel. That is, the UL channel may be allocated under control except for the resources of the UL reference signal.
  • the UE may control to map a UL channel (eg, at least one of UL data, DMRS, and UCI) to a resource excluding the resource of the UL reference signal. In other words, the UE may control to apply rate matching.
  • the increase in the coding rate is suppressed even if the UL channel is allocated while avoiding the resource of the UL reference signal. can do. In such a case, it is possible to improve the communication quality by transmitting both the UL channel and the UL reference signal.
  • At least the symbol of the UL reference signal may be controlled so that it is not used for the UL channel. That is, the UL channel may be allocated under control except for the symbols to which the UL reference signal is assigned.
  • the UE maps UL channels (eg, at least one of UL data, DMRS, and UCI) to different symbols (eg, postpone) that are set or scheduled for resources (eg, symbols) to which UL reference signals are assigned. It may be controlled to do so.
  • the different symbols may be defined in the specification or may be notified from the base station to the UE by at least one of higher layer signaling and DCI.
  • Communication quality can be improved by transmitting both the UL channel and the UL reference signal.
  • Which of the above options 2-1 to 2-5 is applied may be determined based on predetermined conditions.
  • the UE may determine the reception operation based on a predetermined condition when the UL channel and the UL reference signal collide with each other.
  • the predetermined condition is at least one of the information notified from the network (for example, the base station), the code rate of the UL channel, the parameter related to the overhead (for example, NPRB oh ), and the number of ports of the UL reference signal. Good.
  • the base station may notify the UE of the mapping rule when the UL channel and the UL reference signal collide, or the transmission operation of the UE by using higher layer signaling or the like.
  • the UE controls the transmission processing of the UL channel and the UL reference signal based on the information notified from the base station.
  • the mapping rule or the transmission action to be applied may be notified for each type of UL channel, or the mapping rule or the transmission action to be applied may be notified only to a specific type (for example, the first type).
  • the mapping rule or the transmission operation of the UE may be determined based on the coding rate of the UL channel. For example, when the UL channel coding rate (or the UL channel coding rate when transmitting a UL reference signal) is higher than a predetermined value, option 2-1, 2-2, or 2-5 is applied. You may. On the other hand, option 2-4 may be applied when the coding rate of the UL channel (or the coding rate of the UL channel when transmitting the UL reference signal) is equal to or less than a predetermined value.
  • Mapping rules or UE receive behavior may be determined based on overhead parameters for the PUSCH (eg, N PRB oh ).
  • a parameter relating to overhead for PUSCH (eg, N PRB oh ) indicates overhead from other signals (eg, SRS, PT-RS, etc.).
  • the N PRB oh indicates the number of resource elements (RE) of other signals in the PRB , and the N PRB oh may be a value configured by a higher layer parameter.
  • N PRB oh is the overhead indicated by the upper layer parameter (Xoh-PUSCH) and may be any value of 0, 6, 12 or 18. If the Xoh-PUSCH is not set (notified) in the UE, the Xoh-PUSCH may be set to 0.
  • the UE may determine TBS or the like based on N PRB oh .
  • options 2-1, 2-2, or 2-5 may be applied when the overhead parameter for PUSCH (eg, N PRB oh ) is greater than a predetermined value.
  • options 2-3 or 2-4 may be applied when the overhead parameter (for example, N PRB oh ) for PUSCH is equal to or less than a predetermined value.
  • the mapping rule or the transmission operation of the UE may be determined based on the number of UL reference signal ports (for example, SRS port). For example, options 2-1, 2-2, or 2-5 may be applied when the number of UL reference signal ports exceeds a predetermined value. On the other hand, option 2-3 or 2-4 may be applied when the number of UL reference signal ports is equal to or less than a predetermined value.
  • the UE has a UL channel (eg, at least one of PUSCH and PUCCH) set or scheduled to the same resource (eg, the same symbol) as the UL reference signal, and the UL channel is of a second type (or second type UL). If it is a channel), at least one of the following options 2-A to 2-D may be applied.
  • a UL channel eg, at least one of PUSCH and PUCCH
  • the UL channel is of a second type (or second type UL). If it is a channel), at least one of the following options 2-A to 2-D may be applied.
  • At least the resources of the UL reference signal may be controlled so that they are not utilized for the UL channel containing the DMRS (eg, at least one of PUCCH and PUSCH). That is, the allocation of PUCCH and DMRS or PUSCH and DMRS may be controlled except for the resource of the UL reference signal.
  • the UE may control to map UCI (or PUCCH) and DMRS, or UL data (or PUSCH) and DMRS to resources excluding the resources of the UL reference signal. In other words, the UE may control to apply rate matching (see FIG. 3B).
  • a second type of UL channel (eg, PUSCH repeat transmission (repetition factor 4)) is transmitted on a predetermined number of symbols or minislot basis, and a UL reference signal (eg, SRS) is transmitted in a 5-slot cycle.
  • a UL reference signal eg, SRS
  • the resource for the UL channel and the resource for the UL reference signal overlap (also referred to as collision or collision) in slot # 11.
  • the UL channel containing the DMRS (eg, PUCCH and DMRS, or PUSCH and DMRS) is allocated (or scheduled) avoiding the resources of the UL reference signal, and the UE is assigned (or scheduled) with the UL channel of the second type.
  • the channel quality measurement is continued by giving priority to the transmission of the UL reference signal at the predetermined resource. It can be carried out.
  • At least the resources of the UL reference signal are not utilized for the UL channel (eg, at least one of PUCCH and PUSCH) and the UL reference signal is controlled so that it is not duplicated with the same resources as the DMRS (eg, resource element (RE)).
  • the PUCCH or PUSCH may be allocated except for the resources of the UL reference signal, and may be controlled so that the DMRS and the UL reference signal do not overlap.
  • the UE may be controlled to map UCI (or PUCCH) or UL data (or PUSCH) to resources excluding the resources of the UL reference signal. It may also be assumed that the UE does not transmit the UL reference signal and the DMRS corresponding to the second type UL channel (PUCCH or PUSCH) with the same resource (eg, RE).
  • UCI or PUCCH
  • UL data or PUSCH
  • the channel quality measurement is continued by giving priority to the transmission of the UL reference signal at the predetermined resource. It can be carried out.
  • [Option 2-C] It may be controlled so that the collision between the UL channel of the second type and the UL reference signal does not occur. That is, when the UL channel of the second type collides with the UL reference signal, it may be an error case.
  • the base station may control the UL channel of the second type and the UL reference signal so as not to collide with each other. For example, when the second type PUSCH and the SRS can be transmitted in the same slot, the base station may control so that the SRS is assigned after the second type PUSCH and the DMRS corresponding to the PUSCH are transmitted. ..
  • the UE may determine that it is an error case and control so that one or both of them are not transmitted.
  • the UE When a UL channel and a UL reference signal collide, the UE will drop one of the UL channel and the UL reference signal based on the type of the UL channel and the priority set for each type of the UL reference signal. You may control it.
  • the priority may be, for example, CSI for at least one of HARQ-ACK and SR>SRS> PUCCH.
  • the UE may control to drop the SRS when the PUCCH or PUSCH having at least one of HARQ-ACK and SR collides with the SRS. Further, the UE may control to drop the PUCCH when the PUCCH having only the CSI collides with the SRS.
  • the priority to be set is not limited to this. The priority may be defined in advance in the specifications, or may be set from the base station to the UE by an upper layer signarin or the like.
  • the options to be applied may be used properly according to the transmission conditions or the transmission method. For example, different options may be applied in each of the following cases where the transmission conditions or transmission methods are different.
  • ⁇ Case 1 Dynamic DL allocation and DL SPS>
  • different options eg, any of options 1-1 to 1-6
  • the UE utilizes the first option (eg, option 1-1) when dynamic DL allocation is applied and the second option (eg, option 1-2) when DL SPS is applied. May be used.
  • the options applicable to each case are not limited to this.
  • ⁇ Case 2 PDSCH with corresponding DCI and PDSCH without corresponding DCI>
  • options for example, any of options 1-1 to 1-6
  • the UE may use the first option for PDSCHs with a corresponding DCI and the second option for PDSCHs without a corresponding DCI.
  • PDSCH to which repeated transmission is applied and PDSCH to which repeated transmission is not applied PDSCH to which repeated transmission is not applied.
  • different options for example, any of options 1-1 to 1-6
  • the UE may use the first option when the repeated transmission of PDSCH is applied, and may use the second option when the repeated transmission of PDSCH is not applied.
  • the PDSCH may be read as PDCCH.
  • ⁇ Case 4 Dynamic UL Allocation and UL SPS>
  • different options eg, any of options 2-1 to 2-6 may be utilized when the dynamic UL allocation is applied and when the UL SPS is applied.
  • the UE utilizes the first option (eg, option 2-1) when dynamic UL allocation is applied and the second option (eg, option 2-2) when UL SPS is applied. May be used.
  • the options applicable to each case are not limited to this.
  • there are different options for example, any of options 2-1 to 2-6) for PUSCH (PUSCH with corresponding DCI) with a corresponding DCI and PUSCH (PUSCH without corresponding DCI) without a corresponding DCI. May be used.
  • the UE may use the first option for PUSCHs with a corresponding DCI and the second option for PUSCHs without a corresponding DCI.
  • a PUSCH with a corresponding DCI may be a PUSCH scheduled with a DCI
  • a PUSCH without a corresponding DCI may be a configured grant-based PUSCH not scheduled with a DCI.
  • PUSCH to which repeated transmission is applied and PUSCH to which repeated transmission is not applied different options (for example, any of options 2-1 to 2-6) are used when the PUSCH repetition is applied and when the PUSCH repetition is not applied. May be good.
  • the UE may use the first option when the repeated transmission of PUSCH is applied, and may use the second option when the repeated transmission of PUSCH is not applied.
  • PUSCH may be read as PUCCH.
  • the first type channel (eg, URLLC channel) and the reference signal are present in the same CC or cell, and the first type channel (eg, URLLC).
  • Different options eg, any of options 1-1 to 1-6, options 2-1 to 2-6) may be used when the channel) and the reference signal are in different CCs or cells.
  • the UE utilizes the first option when the first type channel and the reference signal are in the same CC or cell, and when the first type channel and the reference signal are in different CCs or cells. You may use the second option.
  • ⁇ Case 8 Frequency band where channels and reference signals are transmitted>
  • the first type channel for example, URLLC channel
  • the reference signal when the first type channel (for example, URLLC channel) and the reference signal are in the same frequency band (or frequency range), and when the first type channel (or frequency range) is present.
  • different options eg, options 1-1 to 1-6, options 2-1 to 2-6 are used when the channel (eg, URLLC channel) and the reference signal are in different frequency bands.
  • the UE uses the first option when the first type channel and the reference signal are in the same frequency band, and when the first type channel and the reference signal are in different frequency bands. You may use the option of 2.
  • ⁇ Case 9 UE transmitting channel and reference signal> Different options when the collision of the channel and the reference signal is between the same UE (intra-UE overlapping) and between different UEs (inter-UE overlapping) in at least one of the first aspect and the second aspect. (For example, any one of options 1-1 to 1-6 and options 2-1 to 2-6) may be used.
  • the UE may use the first option when the channel and reference signal collisions are intra-UE overlapping, and the channel and reference signal collisions are inter-UE overlapping.
  • the second option may be used in some cases.
  • wireless communication system Wireless communication system
  • communication is performed using any one of the wireless communication methods according to each of the above-described embodiments of the present disclosure or a combination thereof.
  • FIG. 4 is a diagram showing an example of a schematic configuration of a wireless communication system according to an embodiment.
  • the wireless communication system 1 may be a system that realizes communication using Long Term Evolution (LTE), 5th generation mobile communication system New Radio (5G NR), etc. specified by Third Generation Partnership Project (3GPP). ..
  • the wireless communication system 1 may support dual connectivity between a plurality of Radio Access Technology (RAT) (Multi-RAT Dual Connectivity (MR-DC)).
  • MR-DC is dual connectivity (E-UTRA-NR Dual Connectivity (EN-DC)) between LTE (Evolved Universal Terrestrial Radio Access (E-UTRA)) and NR, and dual connectivity between NR and LTE (NR-E).
  • -UTRA Dual Connectivity (NE-DC) may be included.
  • the LTE (E-UTRA) base station (eNB) is the master node (Master Node (MN)), and the NR base station (gNB) is the secondary node (Secondary Node (SN)).
  • the NR base station (gNB) is MN
  • the LTE (E-UTRA) base station (eNB) is SN.
  • the wireless communication system 1 has dual connectivity between a plurality of base stations in the same RAT (for example, dual connectivity (NR-NR Dual Connectivity (NN-DC)) in which both MN and SN are NR base stations (gNB). )) May be supported.
  • a plurality of base stations in the same RAT for example, dual connectivity (NR-NR Dual Connectivity (NN-DC)) in which both MN and SN are NR base stations (gNB). )
  • NR-NR Dual Connectivity NR-DC
  • gNB NR base stations
  • the wireless communication system 1 includes a base station 11 that forms a macro cell C1 having a relatively wide coverage, and a base station 12 (12a-12c) that is arranged in the macro cell C1 and forms a small cell C2 that is narrower than the macro cell C1. You may prepare.
  • the user terminal 20 may be located in at least one cell. The arrangement, number, and the like of each cell and the user terminal 20 are not limited to the mode shown in the figure.
  • the base stations 11 and 12 are not distinguished, they are collectively referred to as the base station 10.
  • the user terminal 20 may be connected to at least one of the plurality of base stations 10.
  • the user terminal 20 may use at least one of carrier aggregation (Carrier Aggregation (CA)) and dual connectivity (DC) using a plurality of component carriers (Component Carrier (CC)).
  • CA Carrier Aggregation
  • DC dual connectivity
  • CC Component Carrier
  • Each CC may be included in at least one of a first frequency band (Frequency Range 1 (FR1)) and a second frequency band (Frequency Range 2 (FR2)).
  • the macro cell C1 may be included in FR1 and the small cell C2 may be included in FR2.
  • FR1 may be in a frequency band of 6 GHz or less (sub 6 GHz (sub-6 GHz)), and FR2 may be in a frequency band higher than 24 GHz (above-24 GHz).
  • the frequency bands and definitions of FR1 and FR2 are not limited to these, and for example, FR1 may correspond to a frequency band higher than FR2.
  • the user terminal 20 may perform communication using at least one of Time Division Duplex (TDD) and Frequency Division Duplex (FDD) in each CC.
  • TDD Time Division Duplex
  • FDD Frequency Division Duplex
  • the plurality of base stations 10 may be connected by wire (for example, an optical fiber compliant with Common Public Radio Interface (CPRI), X2 interface, etc.) or wirelessly (for example, NR communication).
  • wire for example, an optical fiber compliant with Common Public Radio Interface (CPRI), X2 interface, etc.
  • NR communication for example, when NR communication is used as a backhaul between base stations 11 and 12, the base station 11 corresponding to the upper station is an Integrated Access Backhaul (IAB) donor, and the base station 12 corresponding to a relay station (relay) is IAB. It may be called a node.
  • IAB Integrated Access Backhaul
  • relay station relay station
  • the base station 10 may be connected to the core network 30 via another base station 10 or directly.
  • the core network 30 may include at least one such as Evolved Packet Core (EPC), 5G Core Network (5GCN), and Next Generation Core (NGC).
  • EPC Evolved Packet Core
  • 5GCN 5G Core Network
  • NGC Next Generation Core
  • the user terminal 20 may be a terminal that supports at least one of communication methods such as LTE, LTE-A, and 5G.
  • a wireless access method based on Orthogonal Frequency Division Multiplexing may be used.
  • OFDM Orthogonal Frequency Division Multiplexing
  • DL Downlink
  • UL Uplink
  • CP-OFDM Cyclic Prefix OFDM
  • DFT-s-OFDM Discrete Fourier Transform Spread OFDM
  • OFDMA Orthogonal Frequency Division Multiple. Access
  • SC-FDMA Single Carrier Frequency Division Multiple Access
  • the wireless access method may be called a waveform.
  • another wireless access system for example, another single carrier transmission system, another multi-carrier transmission system
  • the UL and DL wireless access systems may be used as the UL and DL wireless access systems.
  • downlink shared channels Physical Downlink Shared Channel (PDSCH)
  • broadcast channels Physical Broadcast Channel (PBCH)
  • downlink control channels Physical Downlink Control
  • Channel PDCCH
  • the uplink shared channel Physical Uplink Shared Channel (PUSCH)
  • the uplink control channel Physical Uplink Control Channel (PUCCH)
  • the random access channel shared by each user terminal 20 are used.
  • Physical Random Access Channel (PRACH) Physical Random Access Channel or the like may be used.
  • PDSCH User data, upper layer control information, System Information Block (SIB), etc. are transmitted by PDSCH.
  • User data, upper layer control information, and the like may be transmitted by the PUSCH.
  • MIB Master Information Block
  • PBCH Master Information Block
  • Lower layer control information may be transmitted by PDCCH.
  • the lower layer control information may include, for example, downlink control information (Downlink Control Information (DCI)) including scheduling information of at least one of PDSCH and PUSCH.
  • DCI Downlink Control Information
  • the DCI that schedules PDSCH may be called DL assignment, DL DCI, etc.
  • the DCI that schedules PUSCH may be called UL grant, UL DCI, etc.
  • the PDSCH may be read as DL data
  • the PUSCH may be read as UL data.
  • a control resource set (COntrol REsource SET (CORESET)) and a search space (search space) may be used for detecting PDCCH.
  • CORESET corresponds to a resource that searches for DCI.
  • the search space corresponds to the search area and search method of PDCCH candidates (PDCCH candidates).
  • One CORESET may be associated with one or more search spaces. The UE may monitor the CORESET associated with a search space based on the search space settings.
  • One search space may correspond to PDCCH candidates corresponding to one or more aggregation levels.
  • One or more search spaces may be referred to as a search space set.
  • the "search space”, “search space set”, “search space setting”, “search space set setting”, “CORESET”, “CORESET setting”, etc. of the present disclosure may be read as each other.
  • channel state information (Channel State Information (CSI)
  • delivery confirmation information for example, may be called Hybrid Automatic Repeat reQuest ACK knowledgement (HARQ-ACK), ACK / NACK, etc.
  • scheduling request (Scheduling Request ( Uplink Control Information (UCI) including at least one of SR)
  • the PRACH may transmit a random access preamble for establishing a connection with the cell.
  • downlinks, uplinks, etc. may be expressed without “links”. Further, it may be expressed without adding "Physical" at the beginning of various channels.
  • a synchronization signal (Synchronization Signal (SS)), a downlink reference signal (Downlink Reference Signal (DL-RS)), and the like may be transmitted.
  • the DL-RS includes a cell-specific reference signal (Cell-specific Reference Signal (CRS)), a channel state information reference signal (Channel State Information Reference Signal (CSI-RS)), and a demodulation reference signal (DeModulation).
  • CRS Cell-specific Reference Signal
  • CSI-RS Channel State Information Reference Signal
  • DeModulation Demodulation reference signal
  • Reference Signal (DMRS)), positioning reference signal (Positioning Reference Signal (PRS)), phase tracking reference signal (Phase Tracking Reference Signal (PTRS)), and the like may be transmitted.
  • PRS Positioning Reference Signal
  • PTRS Phase Tracking Reference Signal
  • the synchronization signal may be, for example, at least one of a primary synchronization signal (Primary Synchronization Signal (PSS)) and a secondary synchronization signal (Secondary Synchronization Signal (SSS)).
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • the signal block including SS (PSS, SSS) and PBCH (and DMRS for PBCH) may be referred to as SS / PBCH block, SS Block (SSB) and the like.
  • SS, SSB and the like may also be called a reference signal.
  • a measurement reference signal Sounding Reference Signal (SRS)
  • a demodulation reference signal DMRS
  • UL-RS Uplink Reference Signal
  • UE-specific Reference Signal UE-specific Reference Signal
  • FIG. 5 is a diagram showing an example of the configuration of the base station according to the embodiment.
  • the base station 10 includes a control unit 110, a transmission / reception unit 120, a transmission / reception antenna 130, and a transmission line interface 140.
  • the control unit 110, the transmission / reception unit 120, the transmission / reception antenna 130, and the transmission line interface 140 may each be provided with one or more.
  • the functional blocks of the feature portion in the present embodiment are mainly shown, and it may be assumed that the base station 10 also has other functional blocks necessary for wireless communication. A part of the processing of each part described below may be omitted.
  • the control unit 110 controls the entire base station 10.
  • the control unit 110 can be composed of a controller, a control circuit, and the like described based on the common recognition in the technical field according to the present disclosure.
  • the control unit 110 may control signal generation, scheduling (for example, resource allocation, mapping) and the like.
  • the control unit 110 may control transmission / reception, measurement, and the like using the transmission / reception unit 120, the transmission / reception antenna 130, and the transmission line interface 140.
  • the control unit 110 may generate data to be transmitted as a signal, control information, a sequence, and the like, and transfer the data to the transmission / reception unit 120.
  • the control unit 110 may perform call processing (setting, release, etc.) of the communication channel, state management of the base station 10, management of radio resources, and the like.
  • the transmission / reception unit 120 may include a baseband unit 121, a Radio Frequency (RF) unit 122, and a measurement unit 123.
  • the baseband unit 121 may include a transmission processing unit 1211 and a reception processing unit 1212.
  • the transmitter / receiver 120 includes a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transmitter / receiver circuit, and the like, which are described based on common recognition in the technical fields according to the present disclosure. be able to.
  • the transmission / reception unit 120 may be configured as an integrated transmission / reception unit, or may be composed of a transmission unit and a reception unit.
  • the transmission unit may be composed of a transmission processing unit 1211 and an RF unit 122.
  • the receiving unit may be composed of a receiving processing unit 1212, an RF unit 122, and a measuring unit 123.
  • the transmitting / receiving antenna 130 can be composed of an antenna described based on common recognition in the technical field according to the present disclosure, for example, an array antenna.
  • the transmission / reception unit 120 may transmit the above-mentioned downlink channel, synchronization signal, downlink reference signal, and the like.
  • the transmission / reception unit 120 may receive the above-mentioned uplink channel, uplink reference signal, and the like.
  • the transmission / reception unit 120 may form at least one of a transmission beam and a reception beam by using digital beamforming (for example, precoding), analog beamforming (for example, phase rotation), and the like.
  • digital beamforming for example, precoding
  • analog beamforming for example, phase rotation
  • the transmission / reception unit 120 processes, for example, Packet Data Convergence Protocol (PDCP) layer processing and Radio Link Control (RLC) layer processing (for example, RLC) for data, control information, etc. acquired from control unit 110.
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC Medium Access Control
  • HARQ retransmission control HARQ retransmission control
  • the transmission / reception unit 120 performs channel coding (may include error correction coding), modulation, mapping, filtering, and discrete Fourier transform (Discrete Fourier Transform (DFT)) for the bit string to be transmitted.
  • the base band signal may be output by performing processing (if necessary), inverse fast Fourier transform (IFFT) processing, precoding, digital-analog transform, and other transmission processing.
  • IFFT inverse fast Fourier transform
  • the transmission / reception unit 120 may perform modulation, filtering, amplification, etc. on the baseband signal to the radio frequency band, and transmit the signal in the radio frequency band via the transmission / reception antenna 130. ..
  • the transmission / reception unit 120 may perform amplification, filtering, demodulation to a baseband signal, or the like on the signal in the radio frequency band received by the transmission / reception antenna 130.
  • the transmission / reception unit 120 (reception processing unit 1212) performs analog-digital transformation, fast Fourier transform (FFT) processing, and inverse discrete Fourier transform (IDFT) on the acquired baseband signal. )) Processing (if necessary), filtering, demapping, demodulating, decoding (may include error correction decoding), MAC layer processing, RLC layer processing, PDCP layer processing, and other reception processing are applied. User data and the like may be acquired.
  • FFT fast Fourier transform
  • IDFT inverse discrete Fourier transform
  • the transmission / reception unit 120 may perform measurement on the received signal.
  • the measuring unit 123 may perform Radio Resource Management (RRM) measurement, Channel State Information (CSI) measurement, or the like based on the received signal.
  • the measuring unit 123 has received power (for example, Reference Signal Received Power (RSRP)) and reception quality (for example, Reference Signal Received Quality (RSRQ), Signal to Interference plus Noise Ratio (SINR), Signal to Noise Ratio (SNR)).
  • RSRP Reference Signal Received Power
  • RSSQ Reference Signal Received Quality
  • SINR Signal to Noise Ratio
  • Signal strength for example, Received Signal Strength Indicator (RSSI)
  • propagation path information for example, CSI
  • the measurement result may be output to the control unit 110.
  • the transmission line interface 140 transmits and receives signals (backhaul signaling) to and from devices included in the core network 30, other base stations 10, and the like, and provides user data (user plane data) and control plane for the user terminal 20. Data or the like may be acquired or transmitted.
  • the transmitting unit and the receiving unit of the base station 10 in the present disclosure may be composed of at least one of the transmission / reception unit 120, the transmission / reception antenna 130, and the transmission line interface 140.
  • the transmission / reception unit 120 may transmit at least one of the downlink channel and the downlink reference signal. Further, the transmission / reception unit 120 may receive at least one of the uplink shared channel and the uplink reference signal. The transmission / reception unit 120 may transmit information regarding at least one priority of the downlink channel and the uplink channel.
  • control unit 110 may separately set the mapping rule or the reception operation of the UE based on the type of the downlink.
  • base station 110 may separately configure mapping rules or UE transmission operations based on the uplink type when the uplink and uplink reference signals are set or assigned to the same resource.
  • FIG. 6 is a diagram showing an example of the configuration of the user terminal according to the embodiment.
  • the user terminal 20 includes a control unit 210, a transmission / reception unit 220, and a transmission / reception antenna 230.
  • the control unit 210, the transmission / reception unit 220, and the transmission / reception antenna 230 may each be provided with one or more.
  • this example mainly shows the functional blocks of the feature portion in the present embodiment, and it may be assumed that the user terminal 20 also has other functional blocks necessary for wireless communication. A part of the processing of each part described below may be omitted.
  • the control unit 210 controls the entire user terminal 20.
  • the control unit 210 can be composed of a controller, a control circuit, and the like described based on the common recognition in the technical field according to the present disclosure.
  • the control unit 210 may control signal generation, mapping, and the like.
  • the control unit 210 may control transmission / reception, measurement, and the like using the transmission / reception unit 220 and the transmission / reception antenna 230.
  • the control unit 210 may generate data to be transmitted as a signal, control information, a sequence, and the like, and transfer the data to the transmission / reception unit 220.
  • the transmission / reception unit 220 may include a baseband unit 221 and an RF unit 222, and a measurement unit 223.
  • the baseband unit 221 may include a transmission processing unit 2211 and a reception processing unit 2212.
  • the transmitter / receiver 220 can be composed of a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transmitter / receiver circuit, and the like, which are described based on the common recognition in the technical field according to the present disclosure.
  • the transmission / reception unit 220 may be configured as an integrated transmission / reception unit, or may be composed of a transmission unit and a reception unit.
  • the transmission unit may be composed of a transmission processing unit 2211 and an RF unit 222.
  • the receiving unit may be composed of a receiving processing unit 2212, an RF unit 222, and a measuring unit 223.
  • the transmitting / receiving antenna 230 can be composed of an antenna described based on common recognition in the technical field according to the present disclosure, for example, an array antenna.
  • the transmission / reception unit 220 may receive the above-mentioned downlink channel, synchronization signal, downlink reference signal, and the like.
  • the transmission / reception unit 220 may transmit the above-mentioned uplink channel, uplink reference signal, and the like.
  • the transmission / reception unit 220 may form at least one of a transmission beam and a reception beam by using digital beamforming (for example, precoding), analog beamforming (for example, phase rotation), and the like.
  • digital beamforming for example, precoding
  • analog beamforming for example, phase rotation
  • the transmission / reception unit 220 (transmission processing unit 2211) performs PDCP layer processing, RLC layer processing (for example, RLC retransmission control), and MAC layer processing (for example, for data, control information, etc. acquired from the control unit 210). , HARQ retransmission control), etc., to generate a bit string to be transmitted.
  • RLC layer processing for example, RLC retransmission control
  • MAC layer processing for example, for data, control information, etc. acquired from the control unit 210.
  • HARQ retransmission control HARQ retransmission control
  • the transmission / reception unit 220 (transmission processing unit 2211) performs channel coding (may include error correction coding), modulation, mapping, filtering processing, DFT processing (if necessary), and IFFT processing for the bit string to be transmitted. , Precoding, digital-to-analog conversion, and other transmission processing may be performed to output the baseband signal.
  • Whether or not to apply the DFT process may be based on the transform precoding setting.
  • the transmission / reception unit 220 transmission processing unit 2211 described above for transmitting a channel (for example, PUSCH) using the DFT-s-OFDM waveform when the transform precoding is enabled.
  • the DFT process may be performed as the transmission process, and if not, the DFT process may not be performed as the transmission process.
  • the transmission / reception unit 220 may perform modulation, filtering, amplification, etc. to the radio frequency band on the baseband signal, and transmit the signal in the radio frequency band via the transmission / reception antenna 230. ..
  • the transmission / reception unit 220 may perform amplification, filtering, demodulation to a baseband signal, or the like on the signal in the radio frequency band received by the transmission / reception antenna 230.
  • the transmission / reception unit 220 (reception processing unit 2212) performs analog-to-digital conversion, FFT processing, IDFT processing (if necessary), filtering processing, demapping, demodulation, and decoding (error correction) for the acquired baseband signal. Decoding may be included), MAC layer processing, RLC layer processing, PDCP layer processing, and other reception processing may be applied to acquire user data and the like.
  • the transmission / reception unit 220 may perform measurement on the received signal.
  • the measuring unit 223 may perform RRM measurement, CSI measurement, or the like based on the received signal.
  • the measuring unit 223 may measure received power (for example, RSRP), reception quality (for example, RSRQ, SINR, SNR), signal strength (for example, RSSI), propagation path information (for example, CSI), and the like.
  • the measurement result may be output to the control unit 210.
  • the transmitter and receiver of the user terminal 20 in the present disclosure may be composed of at least one of the transmitter / receiver 220 and the transmitter / receiver antenna 230.
  • the transmission / reception unit 220 may receive at least one of the downlink channel and the downlink reference signal. Further, the transmission / reception unit 220 may transmit at least one of the uplink shared channel and the uplink reference signal. The transmission / reception unit 220 may receive information regarding at least one priority of the downlink channel and the uplink channel.
  • control unit 210 controls the reception operation to be performed separately (for example, different reception operations for each type) based on the type of the downlink. May be good.
  • the downlink reference signal When the first downlink channel and downlink reference signal are set or assigned to the same resource, the downlink reference signal is dropped, and the second downlink channel and downlink reference signal, which are different in type from the first downlink channel, are set to the same resource.
  • a downlink reference signal may be transmitted when assigned.
  • the resource of the downlink reference signal is used for the first downlink channel, and the second downlink is of a different type from the first downlink channel.
  • the resource of the downlink reference signal may be controlled so as not to be used for the second downlink channel.
  • the symbol of the downlink reference signal is not used for the first downlink channel, and the type is different from that of the first downlink channel.
  • the resource of the downlink reference signal may be controlled so as not to be used for the second downlink channel.
  • the control unit 210 selects a reception operation based on a predetermined condition when the first downlink channel and the downlink reference signal are set or assigned to the same resource, and the second downlink channel whose type is different from that of the first downlink channel. And a particular receive operation may be selected when the downlink reference signal is set or assigned to the same resource.
  • control unit 210 controls to perform transmission operations separately (for example, different transmission operations for each type) based on the type of the uplink channel. May be good.
  • the control unit 210 drops the uplink reference signal when the first uplink and the uplink reference signal are set or assigned to the same resource, and the second uplink and the uplink reference signal of a type different from that of the first uplink signal. May be controlled to send an uplink reference signal when set or assigned to the same resource.
  • the control unit 210 allocates the first uplink channel to the resource of the uplink reference signal, and the type is different from that of the first uplink signal.
  • the second uplink channel and the uplink reference signal are set or assigned to the same resource, the second uplink channel may be controlled not to be assigned to the resource of the uplink reference signal.
  • the control unit 210 assigns the first uplink channel to a symbol different from the symbol of the uplink reference signal, and sets the first uplink channel to a symbol different from the symbol of the uplink reference signal. May be controlled so that when a second uplink and an uplink reference signal of different types are set or assigned to the same resource, the second uplink is not assigned to the uplink reference signal resource.
  • control unit 210 selects a transmission operation based on a predetermined condition when the first uplink channel and the uplink reference signal are set or assigned to the same resource, and the second uplink channel is of a different type from the first uplink channel.
  • a specific transmission operation may be selected when the uplink channel and uplink reference signal are set or assigned to the same resource.
  • each functional block may be realized by using one device that is physically or logically connected, or directly or indirectly (for example, by using two or more physically or logically separated devices). , Wired, wireless, etc.) and may be realized using these plurality of devices.
  • the functional block may be realized by combining the software with the one device or the plurality of devices.
  • the functions include judgment, decision, judgment, calculation, calculation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, solution, selection, selection, establishment, comparison, assumption, expectation, and deemed. , Broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc.
  • a functional block (constituent unit) for functioning transmission may be referred to as a transmitting unit (transmitting unit), a transmitter (transmitter), or the like.
  • the method of realizing each of them is not particularly limited.
  • the base station, user terminal, and the like in one embodiment of the present disclosure may function as a computer that processes the wireless communication method of the present disclosure.
  • FIG. 7 is a diagram showing an example of the hardware configuration of the base station and the user terminal according to the embodiment.
  • the base station 10 and the user terminal 20 described above may be physically configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like. ..
  • the hardware configuration of the base station 10 and the user terminal 20 may be configured to include one or more of the devices shown in the figure, or may be configured not to include some of the devices.
  • processor 1001 may be a plurality of processors. Further, the processing may be executed by one processor, or the processing may be executed simultaneously, sequentially, or by using other methods by two or more processors.
  • the processor 1001 may be mounted by one or more chips.
  • the processor 1001 For each function of the base station 10 and the user terminal 20, for example, by loading predetermined software (program) on hardware such as the processor 1001 and the memory 1002, the processor 1001 performs an operation and communicates via the communication device 1004. It is realized by controlling at least one of reading and writing of data in the memory 1002 and the storage 1003.
  • predetermined software program
  • the processor 1001 operates, for example, an operating system to control the entire computer.
  • the processor 1001 may be configured by a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic unit, registers, and the like.
  • CPU central processing unit
  • control unit 110 210
  • transmission / reception unit 120 220
  • the like may be realized by the processor 1001.
  • the processor 1001 reads a program (program code), a software module, 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.
  • a program program code
  • the control unit 110 may be realized by a control program stored in the memory 1002 and operating in the processor 1001, and may be realized in the same manner for other functional blocks.
  • the memory 1002 is a computer-readable recording medium, for example, at least a Read Only Memory (ROM), an Erasable Programmable ROM (EPROM), an Electrically EPROM (EEPROM), a Random Access Memory (RAM), or any other suitable storage medium. It may be composed of one.
  • the memory 1002 may be referred to as a register, a cache, a main memory (main storage device), or the like.
  • the memory 1002 can store a program (program code), a software module, or the like that can be executed to implement the wireless communication method according to the embodiment of the present disclosure.
  • the storage 1003 is a computer-readable recording medium, for example, a flexible disk, a floppy (registered trademark) disk, a magneto-optical disk (for example, a compact disc (Compact Disc ROM (CD-ROM)), a digital versatile disk, etc.). At least one of Blu-ray® disks, removable disks, hard disk drives, smart cards, flash memory devices (eg cards, sticks, key drives), magnetic stripes, databases, servers, and other suitable storage media. It may be composed of.
  • the storage 1003 may be referred to as an auxiliary storage device.
  • 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, a network controller, a network card, a communication module, or the like.
  • the communication device 1004 includes, for example, a high frequency switch, a duplexer, a filter, a frequency synthesizer, etc. in order to realize at least one of frequency division duplex (Frequency Division Duplex (FDD)) and time division duplex (Time Division Duplex (TDD)). It may be configured to include.
  • the transmission / reception unit 120 (220), the transmission / reception antenna 130 (230), and the like described above may be realized by the communication device 1004.
  • the transmission / reception unit 120 (220) may be physically or logically separated from the transmission unit 120a (220a) and the reception unit 120b (220b).
  • the input device 1005 is an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.) that receives an input from the outside.
  • the output device 1006 is an output device (for example, a display, a speaker, a Light Emitting Diode (LED) lamp, etc.) that outputs to the outside.
  • 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 memory 1002 is connected by the bus 1007 for communicating information.
  • the bus 1007 may be configured by using a single bus, or may be configured by using a different bus for each device.
  • the base station 10 and the user terminal 20 include a microprocessor, a digital signal processor (Digital Signal Processor (DSP)), an Application Specific Integrated Circuit (ASIC), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), and the like. It may be configured to include hardware, and a part or all of each functional block may be realized by using the hardware. For example, processor 1001 may be implemented using at least one of these hardware.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • PLD Programmable Logic Device
  • FPGA Field Programmable Gate Array
  • the wireless frame may be composed of one or more periods (frames) in the time domain.
  • Each of the one or more periods (frames) constituting the wireless frame may be referred to as a subframe.
  • the subframe may be composed of one or more slots in the time domain.
  • the subframe may have a fixed time length (eg, 1 ms) that is independent of numerology.
  • the numerology may be a communication parameter applied to at least one of transmission and reception of a signal or channel.
  • Numerology includes, for example, subcarrier spacing (SubCarrier Spacing (SCS)), bandwidth, symbol length, cyclic prefix length, transmission time interval (Transmission Time Interval (TTI)), number of symbols per TTI, and wireless frame configuration.
  • SCS subcarrier Spacing
  • TTI Transmission Time Interval
  • a specific filtering process performed by the transmitter / receiver in the frequency domain, a specific windowing process performed by the transmitter / receiver in the time domain, and the like may be indicated.
  • the slot may be composed of one or more symbols in the time domain (Orthogonal Frequency Division Multiple Access (OFDMA) symbol, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbol, etc.). Further, the slot may be a time unit based on numerology.
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single Carrier Frequency Division Multiple Access
  • the slot may include a plurality of mini slots. Each minislot may consist of one or more symbols in the time domain. Further, the mini slot may be called a sub slot. A minislot may consist of a smaller number of symbols than the slot.
  • a PDSCH (or PUSCH) transmitted in time units larger than the minislot may be referred to as a PDSCH (PUSCH) mapping type A.
  • the PDSCH (or PUSCH) transmitted using the minislot may be referred to as PDSCH (PUSCH) mapping type B.
  • the wireless frame, subframe, slot, mini slot and symbol all represent the time unit when transmitting a signal.
  • the radio frame, subframe, slot, minislot and symbol may have different names corresponding to each.
  • the time units such as frames, subframes, slots, mini slots, and symbols in the present disclosure may be read as each other.
  • one subframe may be called TTI
  • a plurality of consecutive subframes may be called TTI
  • one slot or one minislot may be called TTI. That is, at least one of the subframe and TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (eg, 1-13 symbols), or a period longer than 1 ms. It may be.
  • the unit representing TTI may be called a slot, a mini slot, or the like instead of a subframe.
  • TTI refers to, for example, the minimum time unit of scheduling in wireless communication.
  • the base station schedules each user terminal to allocate radio resources (frequency bandwidth that can be used in each user terminal, transmission power, etc.) in TTI units.
  • the definition of TTI is not limited to this.
  • the TTI may be a transmission time unit such as a channel-encoded data packet (transport block), a code block, or a code word, or may be a processing unit such as scheduling or link adaptation.
  • the time interval for example, the number of symbols
  • the transport block, code block, code word, etc. may be shorter than the TTI.
  • one or more TTIs may be the minimum time unit for scheduling. Further, the number of slots (number of mini-slots) constituting the minimum time unit of the scheduling may be controlled.
  • a TTI having a time length of 1 ms may be referred to as a normal TTI (TTI in 3GPP Rel. 8-12), a normal TTI, a long TTI, a normal subframe, a normal subframe, a long subframe, a slot, or the like.
  • TTIs shorter than normal TTIs may be referred to as shortened TTIs, short TTIs, partial TTIs (partial or fractional TTIs), shortened subframes, short subframes, minislots, subslots, slots, and the like.
  • the long TTI (for example, normal TTI, subframe, etc.) may be read as a TTI having a time length of more than 1 ms, and the short TTI (for example, shortened TTI, etc.) is less than the TTI length of the long TTI and 1 ms. It may be read as a TTI having the above TTI length.
  • a resource block is a resource allocation unit in the time domain and the frequency domain, and may include one or a plurality of continuous subcarriers in the frequency domain.
  • the number of subcarriers contained in the RB may be the same regardless of the numerology, and may be, for example, 12.
  • the number of subcarriers contained in the RB may be determined based on numerology.
  • the RB may include one or more symbols in the time domain, and may have a length of 1 slot, 1 mini slot, 1 subframe or 1 TTI.
  • Each 1TTI, 1 subframe, etc. may be composed of one or a plurality of resource blocks.
  • one or more RBs are a physical resource block (Physical RB (PRB)), a sub-carrier group (Sub-Carrier Group (SCG)), a resource element group (Resource Element Group (REG)), a PRB pair, and an RB. It may be called a pair or the like.
  • PRB Physical RB
  • SCG sub-carrier Group
  • REG resource element group
  • PRB pair an RB. It may be called a pair or the like.
  • the resource block may be composed of one or a plurality of resource elements (Resource Element (RE)).
  • RE Resource Element
  • 1RE may be a radio resource area of 1 subcarrier and 1 symbol.
  • Bandwidth Part (which may also be called partial bandwidth) represents a subset of consecutive common resource blocks (RBs) for a neurology in a carrier. May be good.
  • the common RB may be specified by the index of the RB with respect to the common reference point of the carrier.
  • PRBs may be defined in a BWP and numbered within that BWP.
  • the BWP may include UL BWP (BWP for UL) and DL BWP (BWP for DL).
  • BWP UL BWP
  • BWP for DL DL BWP
  • One or more BWPs may be set in one carrier for the UE.
  • At least one of the configured BWPs may be active, and the UE may not expect to send or receive a given signal / channel outside the active BWP.
  • “cell”, “carrier” and the like in this disclosure may be read as “BWP”.
  • the above-mentioned structures such as wireless frames, subframes, slots, mini slots, and symbols are merely examples.
  • the number of subframes contained in a wireless frame the number of slots per subframe or wireless frame, the number of minislots contained within a slot, the number of symbols and RBs contained in a slot or minislot, included in the RB.
  • the number of subcarriers, the number of symbols in the TTI, the symbol length, the cyclic prefix (CP) length, and other configurations can be changed in various ways.
  • the information, parameters, etc. described in the present disclosure may be expressed using absolute values, relative values from predetermined values, or using other corresponding information. It may be represented. For example, radio resources may be indicated by a given index.
  • the information, signals, etc. described in this disclosure may be represented using any of a variety of different techniques.
  • data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description are voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these. It may be represented by a combination of.
  • information, signals, etc. can be output from the upper layer to the lower layer and from the lower layer to at least one of the upper layers.
  • Information, signals, etc. may be input / output via a plurality of network nodes.
  • the input / output information, signals, etc. may be stored in a specific location (for example, memory) or may be managed using a management table. Input / output information, signals, etc. can be overwritten, updated, or added. The output information, signals, etc. may be deleted. The input information, signals, etc. may be transmitted to other devices.
  • the notification of information is not limited to the mode / embodiment described in the present disclosure, and may be performed by using another method.
  • the notification of information in the present disclosure includes physical layer signaling (for example, downlink control information (DCI)), uplink control information (Uplink Control Information (UCI))), and higher layer signaling (for example, Radio Resource Control). (RRC) signaling, broadcast information (master information block (MIB), system information block (SIB), etc.), medium access control (MAC) signaling), other signals or combinations thereof May be carried out by.
  • DCI downlink control information
  • UCI Uplink Control Information
  • RRC Radio Resource Control
  • MIB master information block
  • SIB system information block
  • MAC medium access control
  • the physical layer signaling may be referred to as Layer 1 / Layer 2 (L1 / L2) control information (L1 / L2 control signal), L1 control information (L1 control signal), and the like.
  • the RRC signaling may be called an RRC message, and may be, for example, an RRC connection setup (RRC Connection Setup) message, an RRC connection reconfiguration (RRC Connection Reconfiguration) message, or the like.
  • MAC signaling may be notified using, for example, a MAC control element (MAC Control Element (CE)).
  • CE MAC Control Element
  • the notification of predetermined information is not limited to the explicit notification, but implicitly (for example, by not notifying the predetermined information or another information). May be done (by notification of).
  • the determination may be made by a value represented by 1 bit (0 or 1), or by a boolean value represented by true or false. , May be done by numerical comparison (eg, comparison with a given value).
  • Software is an instruction, instruction set, code, code segment, program code, program, subprogram, software module, whether called software, firmware, middleware, microcode, hardware description language, or another name.
  • Applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, features, etc. should be broadly interpreted to mean.
  • software, instructions, information, etc. may be transmitted and received via a transmission medium.
  • a transmission medium For example, a website where software uses at least one of wired technology (coaxial cable, fiber optic cable, twist pair, digital subscriber line (DSL), etc.) and wireless technology (infrared, microwave, etc.).
  • wired technology coaxial cable, fiber optic cable, twist pair, digital subscriber line (DSL), etc.
  • wireless technology infrared, microwave, etc.
  • Network may mean a device (eg, a base station) included in the network.
  • precoding "precoding weight”
  • QCL Quality of Co-Co-Location
  • TCI state Transmission Configuration Indication state
  • space "Spatial relation”, “spatial domain filter”, “transmission power”, “phase rotation”, "antenna port”, “antenna port group”, “layer”, “number of layers”
  • Terms such as “rank”, “resource”, “resource set”, “resource group”, “beam”, “beam width”, “beam angle”, "antenna”, “antenna element", “panel” are compatible.
  • Base station BS
  • radio base station fixed station
  • NodeB NodeB
  • eNB eNodeB
  • gNB gNodeB
  • Access point "Transmission point (Transmission Point (TP))
  • RP Reception point
  • TRP Transmission / Reception Point
  • Panel , "Cell”, “sector”, “cell group”, “carrier”, “component carrier” and the like
  • Base stations are sometimes referred to by terms such as macrocells, small cells, femtocells, and picocells.
  • the base station can accommodate one or more (for example, three) cells.
  • a base station accommodates multiple cells, the entire coverage area of the base station can be divided into multiple smaller areas, each smaller area being a base station subsystem (eg, a small indoor base station (Remote Radio)).
  • Communication services can also be provided by Head (RRH))).
  • RRH Head
  • the term "cell” or “sector” refers to part or all of the coverage area of at least one of the base stations and base station subsystems that provide communication services in this coverage.
  • MS mobile station
  • UE user equipment
  • terminal terminal
  • Mobile stations include subscriber stations, mobile units, subscriber units, wireless units, remote units, mobile devices, wireless devices, wireless communication devices, remote devices, mobile subscriber stations, access terminals, mobile terminals, wireless terminals, remote terminals. , Handset, user agent, mobile client, client or some other suitable term.
  • At least one of the base station and the mobile station may be called a transmitting device, a receiving device, a wireless communication device, or the like.
  • At least one of the base station and the mobile station may be a device mounted on the mobile body, the mobile body itself, or the like.
  • the moving body may be a vehicle (eg, car, airplane, etc.), an unmanned moving body (eg, drone, self-driving car, etc.), or a robot (manned or unmanned). ) May be.
  • at least one of the base station and the mobile station includes a device that does not necessarily move during communication operation.
  • at least one of the base station and the mobile station may be an Internet of Things (IoT) device such as a sensor.
  • IoT Internet of Things
  • the base station in the present disclosure may be read by the user terminal.
  • communication between a base station and a user terminal is replaced with communication between a plurality of user terminals (for example, it may be called Device-to-Device (D2D), Vehicle-to-Everything (V2X), etc.).
  • D2D Device-to-Device
  • V2X Vehicle-to-Everything
  • Each aspect / embodiment of the present disclosure may be applied to the configuration.
  • the user terminal 20 may have the function of the base station 10 described above.
  • words such as "up” and “down” may be read as words corresponding to communication between terminals (for example, "side”).
  • the upstream channel, the downstream channel, and the like may be read as a side channel.
  • the user terminal in the present disclosure may be read as a base station.
  • the base station 10 may have the functions of the user terminal 20 described above.
  • the operation performed by the base station may be performed by its upper node (upper node) in some cases.
  • various operations performed for communication with a terminal are performed by the base station and one or more network nodes other than the base station (for example,).
  • Mobility Management Entity (MME), Serving-Gateway (S-GW), etc. can be considered, but it is not limited to these), or it is clear that it can be performed by a combination thereof.
  • each aspect / embodiment described in the present disclosure may be used alone, in combination, or switched with execution.
  • the order of the processing procedures, sequences, flowcharts, etc. of each aspect / embodiment described in the present disclosure may be changed as long as there is no contradiction.
  • the methods described in the present disclosure present elements of various steps using exemplary order, and are not limited to the particular order presented.
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • LTE-B LTE-Beyond
  • SUPER 3G IMT-Advanced
  • 4G 4th generation mobile communication system
  • 5G 5th generation mobile communication system
  • Future Radio Access FAA
  • New-Radio Access Technology RAT
  • NR New Radio
  • NX New radio access
  • Future generation radio access FX
  • GSM Global System for Mobile communications
  • CDMA2000 Code Division Multiple Access
  • UMB Ultra Mobile Broadband
  • IEEE 802.11 Wi-Fi (registered trademark)
  • IEEE 802.16 WiMAX (registered trademark)
  • a plurality of systems may be applied in combination (for example, a combination of LTE or LTE-A and 5G).
  • references to elements using designations such as “first”, “second”, etc. as used in this disclosure does not generally limit the quantity or order of those elements. These designations can be used in the present disclosure as a convenient way to distinguish between two or more elements. Thus, references to the first and second elements do not mean that only two elements can be adopted or that the first element must somehow precede the second element.
  • determining used in this disclosure may include a wide variety of actions.
  • judgment (decision) means judgment (judging), calculation (calculating), calculation (computing), processing (processing), derivation (deriving), investigation (investigating), search (looking up, search, inquiry) ( For example, searching in a table, database or another data structure), ascertaining, etc. may be considered to be "judgment”.
  • judgment (decision) means receiving (for example, receiving information), transmitting (for example, transmitting information), input (input), output (output), access (for example). It may be regarded as “judgment (decision)" of "accessing” (for example, accessing data in memory).
  • judgment (decision) is regarded as “judgment (decision)” of solving, selecting, choosing, establishing, comparing, and the like. May be good. That is, “judgment (decision)” may be regarded as “judgment (decision)” of some action.
  • connection are any direct or indirect connection or connection between two or more elements. Means, and can include the presence of one or more intermediate elements between two elements that are “connected” or “joined” to each other.
  • the connection or connection between the elements may be physical, logical, or a combination thereof. For example, "connection” may be read as "access”.
  • the radio frequency domain microwaves. It can be considered to be “connected” or “coupled” to each other using frequency, electromagnetic energy having wavelengths in the light (both visible and invisible) regions, and the like.
  • the term "A and B are different” may mean “A and B are different from each other”.
  • the term may mean that "A and B are different from C”.
  • Terms such as “separate” and “combined” may be interpreted in the same way as “different”.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Selon un aspect, la présente invention concerne un terminal qui comprend : une unité de transmission qui transmet au moins l'un parmi un canal partagé de liaison montante et un signal de référence de liaison montante ; et une unité de commande qui effectue différentes opérations de transmission sur la base du type du canal partagé de liaison montante, lorsque le canal partagé de liaison montante et le signal de référence de liaison montante sont définis ou affectés à la même ressource.
PCT/JP2019/027615 2019-07-11 2019-07-11 Terminal et procédé de communication sans fil Ceased WO2021005803A1 (fr)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018203440A1 (fr) * 2017-05-02 2018-11-08 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ Terminal et procédé de communication

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4913221B2 (ja) * 2010-02-12 2012-04-11 シャープ株式会社 移動局装置、通信方法、集積回路、無線通信システムおよび制御プログラム
JP5132723B2 (ja) * 2010-02-15 2013-01-30 株式会社エヌ・ティ・ティ・ドコモ 参照信号送信方法、移動局装置及び基地局装置
KR101306377B1 (ko) * 2011-09-29 2013-09-09 엘지전자 주식회사 상향링크 전송 방법 및 장치
JP5416231B2 (ja) * 2012-01-13 2014-02-12 シャープ株式会社 基地局装置、無線通信方法および回路装置
JP5575819B2 (ja) * 2012-01-18 2014-08-20 シャープ株式会社 無線通信システム、移動局装置、無線通信方法および集積回路
CN103220070B (zh) * 2012-01-20 2017-11-14 中兴通讯股份有限公司 一种上行信号的发送方法及用户设备
JP5576975B2 (ja) * 2013-10-24 2014-08-20 シャープ株式会社 移動局装置、通信方法および集積回路
WO2017110959A1 (fr) * 2015-12-25 2017-06-29 株式会社Ｎｔｔドコモ Terminal utilisateur, station de base sans fil et procédé de communication sans fil
JP6317773B2 (ja) * 2016-02-04 2018-04-25 株式会社Ｎｔｔドコモ ユーザ端末、無線基地局及び無線通信方法
WO2018043560A1 (fr) * 2016-08-31 2018-03-08 株式会社Ｎｔｔドコモ Terminal d'utilisateur, et procédé de communication sans fil
CN107889230B (zh) * 2016-09-29 2022-11-29 中兴通讯股份有限公司 信号发送、接收发送及装置
WO2018128296A1 (fr) * 2017-01-03 2018-07-12 엘지전자 주식회사 Procédé d'émission et de réception d'un canal de commande de liaison montante et d'un symbole de référence de sondage, et appareil associé
CN109150387B (zh) * 2017-06-16 2023-04-28 华为技术有限公司 发送参考信号的方法、接收参考信号的方法和通信装置
CN109391388B (zh) * 2017-08-04 2021-01-08 维沃移动通信有限公司 一种数据传输方法、终端及基站
CN108111277B (zh) * 2017-08-11 2022-04-19 中兴通讯股份有限公司 上行信号发送的配置、上行信号的发送方法、装置及系统
US12010064B2 (en) * 2017-10-11 2024-06-11 Ntt Docomo, Inc. User terminal and radio communication method
EP3691168B1 (fr) * 2017-11-24 2022-01-26 LG Electronics Inc. Procédé permettant de transmettre et recevoir un srs et dispositif de communication associé
US10863494B2 (en) * 2018-01-22 2020-12-08 Apple Inc. Control signaling for uplink multiple input multiple output, channel state information reference signal configuration and sounding reference signal configuration
EP3621392B1 (fr) * 2018-05-11 2022-01-19 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Procédé de transmission de signal de liaison montante et dispositif terminal

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018203440A1 (fr) * 2017-05-02 2018-11-08 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ Terminal et procédé de communication

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
HUAWEI ET AL.: "UL inter-UE transmission prioritization and multiplexing", 3GPP TSG RAN WG1 #97 R1-1906061, 17 May 2019 (2019-05-17), XP051727518 *

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