WO2023002587A1 - Terminal et procédé de communication - Google Patents

Terminal et procédé de communication Download PDF

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Publication number
WO2023002587A1
WO2023002587A1 PCT/JP2021/027220 JP2021027220W WO2023002587A1 WO 2023002587 A1 WO2023002587 A1 WO 2023002587A1 JP 2021027220 W JP2021027220 W JP 2021027220W WO 2023002587 A1 WO2023002587 A1 WO 2023002587A1
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Prior art keywords
pdsch
terminal
band
pbch
channel
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PCT/JP2021/027220
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English (en)
Japanese (ja)
Inventor
慎也 熊谷
拓真 中村
知也 小原
大輔 栗田
聡 永田
Original Assignee
株式会社Ｎｔｔドコモ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社Ｎｔｔドコモ filed Critical 株式会社Ｎｔｔドコモ
Priority to CN202180100320.2A priority Critical patent/CN117616850A/zh
Priority to PCT/JP2021/027220 priority patent/WO2023002587A1/fr
Publication of WO2023002587A1 publication Critical patent/WO2023002587A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present invention relates to a terminal and communication method in a wireless communication system.
  • NR New Radio
  • NR New Radio
  • 5G various radio technologies and network architectures are being studied in order to meet the requirements of realizing a throughput of 10 Gbps or more and keeping the delay in the radio section to 1 ms or less (for example, Non-Patent Document 1). .
  • the present invention has been made in view of the above points, and aims to provide technology that enables appropriate use of resources according to ability.
  • a receiving unit that receives information about a second band within a first band, and a control unit that uses both the signal within the first band and the signal within the second band and wherein the receiving unit receives the first band broadcast signal containing system information.
  • a technique that enables appropriate use of resources according to ability.
  • FIG. 1 is a diagram for explaining a radio communication system according to an embodiment of the present invention
  • FIG. FIG. 4 is a diagram for explaining a situation in which multiple types of terminals coexist
  • FIG. 4 is a diagram for explaining a baseline channel and an additional channel
  • FIG. 4 is a sequence diagram showing an example of the flow of B-PBCH transmission/reception and A-PBCH transmission/reception according to the first embodiment
  • FIG. 10 is a first diagram for explaining notification indicating the presence of A-PBCH according to the first embodiment
  • FIG. 10 is a second diagram for explaining notification indicating the existence of A-PBCH according to the first embodiment
  • FIG. 13 is a third diagram for explaining notification indicating the presence of A-PBCH according to the first embodiment
  • FIG. 10 is a fourth diagram for explaining notification indicating the presence of A-PBCH according to the first embodiment
  • FIG. 4 is a diagram showing an example of a specific correspondence relationship between B-PBCH and A-PBCH according to Example 1
  • FIG. 10 is a sequence diagram showing an example of the flow of B-PDSCH transmission/reception and A-PDSCH transmission/reception according to the second embodiment
  • FIG. 10 is a first diagram for explaining notification indicating the presence of A-PDSCH according to the second embodiment
  • FIG. 12 is a second diagram for explaining notification indicating the existence of A-PDSCH according to the second embodiment
  • FIG. 13 is a third diagram for explaining notification indicating the existence of A-PDSCH according to the second embodiment
  • FIG. 10 is a fourth diagram for explaining notification indicating the existence of A-PDSCH according to the second embodiment; It is a figure showing an example of functional composition of base station 10 in an embodiment of the invention.
  • 2 is a diagram showing an example of the functional configuration of terminal 20 according to the embodiment of the present invention;
  • FIG. 2 is a diagram showing an example of hardware configuration of base station 10 or terminal 20 according to an embodiment of the present invention;
  • Existing technologies are appropriately used for the operation of the wireless communication system according to the embodiment of the present invention.
  • the existing technology is, for example, existing NR, but is not limited to existing NR.
  • FIG. 1 is a diagram for explaining a radio communication system according to an embodiment of the present invention.
  • a radio communication system according to an embodiment of the present invention includes a base station 10 and a terminal 20, as shown in FIG. Although one base station 10 and one terminal 20 are shown in FIG. 1, this is an example and there may be more than one.
  • the base station 10 is a communication device that provides one or more cells and performs wireless communication with the terminal 20.
  • a physical resource of a radio signal is defined in the time domain and the frequency domain.
  • the time domain may be defined by the number of OFDM symbols, and the frequency domain may be defined by the number of subcarriers or resource blocks.
  • a TTI (Transmission Time Interval) in the time domain may be a slot, or a TTI may be a subframe.
  • the base station 10 can perform carrier aggregation in which multiple cells (multiple CCs (component carriers)) are bundled and communicated with the terminal 20 .
  • multiple CCs component carriers
  • carrier aggregation one primary cell (PCell, Primary Cell) and one or more secondary cells (SCell, Secondary Cell) are used.
  • the base station 10 transmits a synchronization signal, system information, etc. to the terminal 20.
  • Synchronization signals are, for example, NR-PSS and NR-SSS.
  • the synchronization signal may be SSB.
  • the system information is transmitted by, for example, NR-PBCH (Physical Broadcast Channel) or PDSCH (Physical Downlink Shared Channel), and is also called broadcast information.
  • NR-PBCH Physical Broadcast Channel
  • PDSCH Physical Downlink Shared Channel
  • control channels such as PUCCH (Physical Uplink Control Channel) and PDCCH (Physical Downlink Control Channel)
  • PUCCH Physical Uplink Control Channel
  • PDCCH Physical Downlink Control Channel
  • the terminal 20 is a communication device with a wireless communication function, such as a smartphone, mobile phone, tablet, wearable terminal, or M2M (Machine-to-Machine) communication module. As shown in FIG. 1 , the terminal 20 receives control signals or data from the base station 10 on the DL and transmits control signals or data to the base station 10 on the UL, thereby performing various functions provided by the wireless communication system. Use communication services. Note that the terminal 20 may be called UE, and the base station 10 may be called gNB.
  • UE categories/capabilities for IoT Internet of Things
  • This UE category/capability is, for example, eMTC (enhanced machine type communication) in LTE, NB (narrow band)-IoT, RedCap (Reduced Capability) in NR. Therefore, it is considered that an additional function is required for compensating for the characteristic deterioration due to the reduction of functions.
  • FIG. 2 is a diagram for explaining a situation in which multiple types of terminals coexist.
  • an existing UE that communicates in a wide band and a short time
  • an IoT UE that uses a narrower band, a longer time, and repetition, a narrower band, and a smaller Information and sensing UEs using may coexist.
  • a baseline channel (first band) that can be received by any UE and an additional channel optimized for a specific UE / service (Second band) and a communication method will be described.
  • the baseline channel and the additional channel for example, while maintaining the connection using the baseline channel, it is possible to communicate the additionally required resource using the additional channel.
  • FIG. 3 is a diagram for explaining the baseline channel and the additional channel.
  • Terminal 20 uses both the signal in the baseline channel and the signal in the additional channel. For example, as shown in FIG. 3, terminal 20 receives SSB (a block containing a synchronization signal), transmits RACH (Random Access Channel), receives Msg2, transmits Msg3, and receives Msg4 on the baseline channel. , subsequent PDCCH reception, and/or PUSCH transmission/PDSCH reception scheduled by that PDCCH. Then, the terminal 20 may perform at least one of SSB reception, RACH transmission, subsequent PDCCH reception, and PUSCH transmission/PDSCH reception scheduled by the PDCCH on the additional channel.
  • SSB a block containing a synchronization signal
  • RACH Random Access Channel
  • Msg2 Random Access Channel
  • Msg4 receives Msg4 on the baseline channel.
  • subsequent PDCCH reception, and/or PUSCH transmission/PDSCH reception scheduled by that PDCCH may perform at least one of
  • Broadcast information includes, for example, a master information block (MIB), a system information block (SIB), a minimum system information (RMSI: Remaining Minimum System Information, SIB1), other system information (OSI : OtherSystemInformation), paging for calling a terminal that is on standby when receiving an incoming call (paging), and the like.
  • MIB master information block
  • SIB system information block
  • RMSI Minimum System Information
  • OSI OtherSystemInformation
  • paging for calling a terminal that is on standby when receiving an incoming call (paging), and the like.
  • Example 1 This embodiment is a method in which the terminal 20 receives a baseline channel broadcast signal (B-PBCH) containing system information.
  • B-PBCH baseline channel broadcast signal
  • the terminal 20 may further receive the A-PBCH when receiving a notification indicating the presence of the additional channel broadcast signal (A-PBCH).
  • A-PBCH additional channel broadcast signal
  • FIG. 4 is a sequence diagram showing an example of the flow of B-PBCH transmission/reception and A-PBCH transmission/reception according to the first embodiment.
  • the terminal 20 receives the B-PBCH from the base station 10 (step S11).
  • terminal 20 receives a notification indicating the presence of A-PBCH from base station 10 (step S12).
  • the terminal 20 receives A-PBCH from the base station 10 (step S13).
  • the B-PBCH may contain all of the system information, or may contain only part of the system information (eg MIB).
  • the system information (MIB, etc.) included in the B-PBCH may include at least one of the parameters related to the transmission and reception of signals on the baseline channel and the parameters related to the transmission and reception of signals on the additional channel.
  • system information (MIB, etc.) included in B-PBCH includes all or part of SFN (System frame number), subcarrier spacing (SCS: SubCarrier Spacing), offset value from RB grid of SS/PBCH, demodulation Resource mapping of the reference signal (DMRS: DeModulation Reference Signal), PDCCH reception setting, connection availability to the channel / cell (Barred), connection availability to another channel / cell / frequency, etc. good.
  • SFN System frame number
  • SCS SubCarrier Spacing
  • DMRS DeModulation Reference Signal
  • PDCCH reception setting connection availability to the channel / cell (Barred), connection availability to another channel / cell / frequency, etc. good.
  • the subcarrier interval may be set for PDSCH including SIBx, signals during initial access/random access (eg, Msg2/4), and PDSCH for paging.
  • the PDCCH reception settings may be settings related to the PDCCH that schedules the PDSCH including other system information (eg, SIB1).
  • SIB1 system information
  • the parameter may be set in common for the terminals 20 that transmit and receive on the channel.
  • the starting symbol of B-PBCH may be determined by the subcarrier spacing.
  • the B-PBCH may be time-multiplexed or frequency-multiplexed with the baseline channel synchronization signal, the B-PBCH demodulation reference signal, and the like.
  • B-PBCH may be multiplexed with B-SS (baseline-synchronization signal), DMRS for B-PBCH demodulation, CRS (Cell-specific Reference Signal), and the like.
  • the B-PBCH may be receivable by terminals 20 of any type or terminal capability, and may be unreceivable by some terminals 20 specified by the specification.
  • the terminal 20 may receive the A-PBCH when receiving a notification indicating the presence of the A-PBCH, as shown in steps S12 and S13 of FIG.
  • FIG. 5 is a first diagram for explaining notification indicating the presence of A-PBCH according to the first embodiment.
  • the notification of the presence of A-PBCH may be included in the notification of the presence of an additional-synchronization signal (A-SS) on an additional channel, or may be independent of the notification of the presence of A-SS. may be notified.
  • A-SS additional-synchronization signal
  • terminal 20 When the notification indicating the presence of A-PBCH is included in the notification indicating the presence of A-SS, terminal 20 receives the notification indicating the presence of A-SS and transmits the notification indicating the presence of A-PBCH. Receive the A-PBCH as received.
  • FIG. 6 is a second diagram for explaining notification indicating the presence of A-PBCH according to the first embodiment.
  • a notification indicating the presence of the A-PBCH may be included in the B-PBCH.
  • the terminal 20 receives the A-PBCH upon receiving the B-PBCH including the notification indicating the presence of the A-PBCH.
  • FIG. 7 is a third diagram for explaining notification indicating the presence of A-PBCH according to the first embodiment.
  • the indication of the presence of A-PBCH may be included in signals/channels of baseline channels other than B-PBCH (eg, B-PDSCH, etc.).
  • terminal 20 receives A-PBCH when it receives a signal/channel on a baseline channel other than B-PBCH that includes an indication of the presence of A-PBCH.
  • FIG. 8 is a fourth diagram for explaining notification indicating the presence of A-PBCH according to the first embodiment.
  • the notification indicating the presence of A-PBCH is sent to a signal/channel (for example, A-PDSCH, etc.) of an additional channel (third band) different from the additional channel (second band) on which A-PBCH is transmitted. may be included.
  • the notification indicating the presence of A-PBCH may be a notification including at least one resource of A-PBCH time, frequency, and code.
  • terminal 20 does not receive A-PBCH when receiving a notification indicating the absence of A-PBCH, and receives A-PBCH when not receiving a notification indicating the absence of A-PBCH.
  • the behavior of the terminal 20 in this case may be defined in specifications.
  • the terminal 20 may receive the A-PBCH or may not receive the A-PBCH if it does not receive a notification indicating the presence or absence of the A-PBCH.
  • the behavior of the terminal 20 in this case may be defined in specifications.
  • the A-PBCH may contain only part of the system information (eg MIB).
  • the system information (MIB, etc.) included in the A-PBCH may include at least one of parameters relating to transmission and reception of signals on the baseline channel and parameters relating to transmission and reception of signals on the additional channel.
  • the B-PBCH may contain parameters related to the transmission and reception of signals on the baseline channel
  • the A-PBCH may contain parameters related to the transmission and reception of signals on the additional channel.
  • settings or information related to the detection or demodulation of A-PBCH may be defined in the specification, may be included in B-PBCH, or may be a baseline channel signal/channel other than B-PBCH. (e.g., B-PDSCH, etc.), or an additional channel (third band) different from the additional channel (second band) on which A-PBCH is transmitted / signal / channel (e.g. , A-PDSCH, etc.).
  • the A-PBCH may be received by terminals 20 that have a specific type or terminal capability.
  • A-PBCH and B-PBCH may be multiplexed at least one of time, frequency or code in the same BWP (Bandwidth Part) in the same cell or in another BWP, or may be transmitted in another cell. good too. That is, a common BWP may be defined or set for the baseline channel and the additional channel, or individual BWPs may be defined or set.
  • terminal 20 may assume that A-PBCH and B-PBCH are transmitted using the same transmission beam (spatial filter). Furthermore, terminal 20 may assume that A-PBCH and B-PBCH having a specific correspondence relationship are transmitted using the same transmit beam (spatial filter). Here, the assumption is that A-PBCH and B-PBCH are in the same BWP, the same cell, the same frequency band, and the same frequency band (FR1/FR2). good.
  • the terminal 20 may be notified by the base station 10 whether or not it has a specific correspondence relationship. Notification whether to have a specific correspondence relationship may be included in B-PBCH, baseline channel signals / channels other than B-PBCH (eg, B-PDSCH, etc.) included in Alternatively, it may be included in a signal/channel (eg, A-PDSCH, etc.) of an additional channel (third band) different from the additional channel (second band) on which A-PBCH is transmitted. .
  • FIG. 9 is a diagram showing an example of specific correspondence between B-PBCH and A-PBCH according to the first embodiment.
  • A-PBCH and B-PBCH may have a specific correspondence relationship when they overlap in the time domain, that is, when they are frequency or code multiplexed.
  • the case of having a specific correspondence relationship may be limited to at least one of the same BWP, the same cell, the same frequency band, and the same frequency band (FR1/FR2).
  • terminal 20 may assume that the transmission cycles of A-PBCH and B-PBCH are the same or different. Furthermore, terminal 20 may assume that the transmission cycles of A-PBCH and B-PBCH having a specific correspondence relationship are the same.
  • the terminal 20 receives a baseline channel broadcast signal (B-PBCH) containing system information.
  • B-PBCH baseline channel broadcast signal
  • the terminal 20 may further receive the A-PBCH when receiving a notification indicating the presence of the additional channel broadcast signal (A-PBCH).
  • A-PBCH additional channel broadcast signal
  • Example 2 This embodiment is a method in which the terminal 20 receives a shared channel (B-PDSCH) of the baseline channel containing system information.
  • B-PDSCH shared channel
  • the terminal 20 may further receive the A-PDSCH containing the system information when receiving a notification indicating the existence of the shared channel (A-PDSCH) of the additional channel containing the system information.
  • FIG. 10 is a sequence diagram showing an example of the flow of B-PDSCH transmission/reception and A-PDSCH transmission/reception according to the second embodiment.
  • the terminal 20 receives the B-PDCCH from the base station 10 (step S21).
  • the B-PDCCH includes DCI (Downlink Control Information) that schedules the B-PDSCH.
  • DCI Downlink Control Information
  • the terminal 20 receives the B-PDSCH according to the schedule defined in DCI (step S22).
  • the terminal 20 receives a notification indicating the existence of the A-PDSCH containing system information (step S23). Subsequently, the terminal 20 receives A-PDCCH from the base station 10 (step S24).
  • A-PDCCH includes DCI that schedules A-PDSCH containing system information.
  • the terminal 20 receives the A-PDSCH including system information according to the schedule specified in DCI (step S25).
  • the B-PDSCH may contain all of the system information, or may contain only part of the system information (for example, at least one of MIB and SIB).
  • the MIB may be included in the B-PBCH and the SIB may be included in the B-PDSCH.
  • settings related to B-PDCCH including DCI that schedules B-PDSCH including each SIB may be different from each other.
  • the configuration related to B-PDCCH including the DCI that schedules SIB1 may be notified in the MIB transmitted on the B-PBCH according to the first embodiment.
  • the configuration related to B-PDCCH including DCI that schedules other SIBs may be notified in SIB1, and if not notified, it may be the same as the configuration related to B-PDCCH that includes DCI that schedules SIB1. good.
  • the DCI format transmitted on the B-PDCCH may be the same as the DCI format that can be transmitted on the PDCCH (A-PDCCH) of the additional channel, or may be partially limited.
  • the DCI format transmitted on the B-PDCCH may be a fallback DCI format, a DCI format with only specific fields, and so on.
  • the SIB or a specific SIB (for example, SIB1) included in the B-PDSCH may include at least one of the parameters related to the transmission and reception of signals on the baseline channel and the parameters related to the transmission and reception of signals on the additional channel.
  • SIB or a specific SIB included in B-PDSCH, transmission timing of synchronization signal (SS), transmission cycle of SS, transmission power of SS, TDD (Time Division Duplex) pattern, DL reception setting ( paging, PDCCH, PDSCH), UL transmission configuration (RACH, PUSCH, PUCCH) and/or the like.
  • the parameter may be set in common for the terminals 20 that transmit and receive on the channel.
  • the B-PDSCH containing system information and the B-PDCCH containing DCI to schedule the B-PDSCH may be received by terminals 20 of any type or terminal capability, and some terminals as specified by the specification. 20 may not be received.
  • the terminal 20 receives the A-PDSCH including the system information when receiving the notification indicating the presence of the A-PDSCH including the system information. good.
  • FIG. 11 is a first diagram for explaining notification indicating the presence of the A-PDSCH according to the second embodiment.
  • the notification indicating the presence of the A-PDSCH containing system information may be included in the notification indicating the presence of the A-PBCH, or may be notified independently of the notification indicating the presence of the A-PBCH.
  • the notification indicating the presence of the A-PDSCH including system information is included in the notification indicating the presence of the A-PBCH
  • the terminal 20 receives the notification indicating the presence of the A-PBCH
  • FIG. 12 is a second diagram for explaining notification indicating the presence of the A-PDSCH according to the second embodiment.
  • a notification indicating the presence of the A-PDSCH containing system information may be included in the B-PDSCH containing system information.
  • the terminal 20 receives the B-PDSCH containing system information including the notification indicating the presence of the A-PDSCH, it receives the A-PDCCH that schedules the A-PDSCH and the A-PDSCH containing the system information. do.
  • FIG. 13 is a third diagram for explaining notification indicating the presence of the A-PDSCH according to the second embodiment.
  • Notification of presence of A-PDSCH containing system information may be included in signals/channels of baseline channels other than B-PDSCH containing system information (eg, B-PDSCH not containing system information, etc.).
  • terminal 20 schedules the A-PDSCH upon receiving a signal/channel on a baseline channel other than the B-PBCH containing system information, including a notification indicating the presence of the A-PDSCH containing system information.
  • Receive PDCCH and A-PDSCH containing system information Receive PDCCH and A-PDSCH containing system information.
  • FIG. 14 is a fourth diagram for explaining notification indicating the presence of the A-PDSCH according to the second embodiment.
  • the notification indicating the presence of the A-PDSCH containing system information is a signal/channel of an additional channel (third band) different from the additional channel (second band) on which the A-PDSCH containing system information is transmitted ( For example, it may be included in an A-PDSCH that does not include system information.
  • the terminal 20 when the terminal 20 receives a notification indicating the absence of the A-PDSCH including system information, the terminal 20 does not receive the A-PDSCH including the system information, and does not receive the notification indicating the absence of the A-PDSCH including the system information. may receive the A-PDSCH containing system information.
  • the behavior of the terminal 20 in this case may be defined in specifications.
  • the terminal 20 may receive the A-PDSCH including system information when not receiving a notification indicating the presence or absence of the A-PDSCH including system information, and may receive the A-PDSCH including system information. No need to receive.
  • the behavior of the terminal 20 in this case may be defined in specifications.
  • the A-PDSCH may contain only part of the system information (eg MIB), or may contain only part (SIB) excluding the MIB.
  • MIB system information
  • SIB system information
  • the settings related to A-PDCCH that schedules the A-PDSCH containing each SIB may differ from each other.
  • the configuration related to the A-PDCCH that schedules SIB1 may be notified in the MIB transmitted on the B-PBCH according to the first embodiment or the MIB transmitted on the A-PBCH according to the first embodiment. Also, the configuration related to A-PDCCH that schedules other SIBs may be reported in SIB1, or may be the same as the configuration related to A-PDCCH that schedules SIB1 if not reported.
  • the SIB included in the A-PDSCH or a specific SIB may include at least one of the parameters related to the transmission and reception of signals on the baseline channel and the parameters related to the transmission and reception of signals on the additional channel.
  • the B-PDSCH may include parameters relating to transmission and reception of signals on the baseline channel
  • the A-PDSCH may include parameters relating to transmission and reception of signals on the additional channel.
  • the A-PDSCH containing system information and the A-PDCCH containing DCI for scheduling the A-PDSCH may be received by terminals 20 having specific types or terminal capabilities.
  • A-PDSCH and B-PDSCH containing system information and A-PDCCH and B-PDCCH containing DCI to schedule them are time, frequency or code in the same BWP or another BWP in the same cell. may be multiplexed or may be transmitted in another cell. That is, a common BWP may be defined or set for the baseline channel and the additional channel, or individual BWPs may be defined or set.
  • terminal 20 uses the same transmission beam (spatial filter) for at least one of A-PDSCH and B-PDSCH containing system information, and A-PDCCH and B-PDCCH containing DCI for scheduling them. may be assumed to be transmitted.
  • the assumption is that the A-PDSCH and B-PDSCH containing system information and/or the A-PDCCH and B-PDCCH containing DCI to schedule them are the same BWP, the same cell, the same It may be limited to the case where it exists in at least one of the frequency band and the same frequency band (FR1/FR2).
  • terminal 20 uses the same transmission beam (spatial filter) for at least one of A-PDSCH and B-PDSCH having a specific correspondence relationship and A-PDCCH and B-PDCCH having a specific correspondence relationship. may be assumed to be transmitted.
  • the terminal 20 may be notified by the base station 10 whether or not it has a specific correspondence relationship. Notification of whether to have a specific correspondence may be included in the B-PDSCH containing system information, or a signal/channel of a baseline channel other than the B-PDSCH containing system information (for example, system information B-PDSCH, etc. that does not include system information), or an additional channel (third band) different from the additional channel (second band) on which the A-PDSCH containing system information is transmitted / channel (eg, A-PDSCH, which does not contain system information).
  • a signal/channel of a baseline channel other than the B-PDSCH containing system information for example, system information B-PDSCH, etc. that does not include system information
  • an additional channel (third band) different from the additional channel (second band) on which the A-PDSCH containing system information is transmitted / channel eg, A-PDSCH, which does not contain system information.
  • A-PDSCH and B-PDSCH containing system information and/or the A-PDCCH and B-PDCCH containing DCI to schedule them overlap in the time domain, i.e., frequency or code multiplexing At times, they may have a specific correspondence relationship.
  • the case of having a specific correspondence relationship may be limited to at least one of the same BWP, the same cell, the same frequency band, and the same frequency band (FR1/FR2).
  • terminal 20 may assume that the transmission cycles of at least one of A-PDSCH and B-PDSCH containing system information and A-PDCCH and B-PDCCH containing DCI for scheduling them are the same. and may be assumed to be different. Furthermore, terminal 20 may assume that at least one of A-PDSCH and B-PDSCH having a specific correspondence relationship and A-PDCCH and B-PDCCH having a specific correspondence relationship have the same transmission cycle. .
  • the terminal 20 receives the shared channel (B-PDSCH) of the baseline channel including system information.
  • B-PDSCH shared channel
  • the terminal 20 may further receive the A-PDSCH containing the system information when receiving a notification indicating the existence of the shared channel (A-PDSCH) of the additional channel containing the system information.
  • A-PDSCH shared channel
  • the wireless communication system may implement the first and second embodiments independently, or may implement both the first and second embodiments. By implementing both the first embodiment and the second embodiment, system information can be transmitted and received in a more distributed manner, so resources can be effectively utilized.
  • This embodiment is a method in which the terminal 20 receives the shared channel (B-PDSCH) of the baseline channel including the paging information.
  • the terminal 20 may receive the A-PDSCH including the paging information.
  • A-PDSCH shared channel
  • B-PDSCH transmission/reception and A-PDSCH transmission/reception according to the present embodiment is the same as B-PDSCH transmission/reception and A-PDSCH transmission/reception according to Embodiment 2 shown in FIG.
  • At least one of the B-PDCCH configuration including DCI to schedule the B-PDSCH configuration and B-PDSCH including paging information may be notified in at least one of the MIB and SIB, if not notified may be the same as for B-PDSCH containing SIB1 and B-PDCCH containing DCI to schedule B-PDSCH.
  • the DCI format transmitted on the B-PDCCH may be the same as the DCI format that can be transmitted on the PDCCH (A-PDCCH) of the additional channel, or may be partially limited.
  • the DCI format transmitted on the B-PDCCH may be a fallback DCI format, a DCI format with only specific fields, and so on.
  • the DCI that schedules the B-PDSCH containing paging information may schedule at least one of the B-PDSCH and A-PDSCH, such as cross carrier scheduling.
  • the paging information included in the B-PDSCH may include one or more UE identifiers.
  • the terminal 20 whose UE identifier matches its own UE identifier assumes that the paging information is intended for itself, and performs a UE state change operation (for example, transitions to RRC CONNECTED state by random access processing). you can go
  • the UE identifier in this case may be notified in common for the baseline channel and the additional channel, or may be notified individually. That is, the state management of the terminal 20 may be performed in common for the baseline channel and the additional channel, or may be performed separately.
  • the B-PDSCH containing paging information and the B-PDCCH containing DCI to schedule the B-PDSCH may be received by terminals 20 of any type or terminal capability, and some terminals as specified by the specification. 20 may not be received.
  • At least one of the A-PDSCH configuration and A-PDCCH configuration including DCI that schedules the A-PDSCH including paging information may be notified in at least one of MIB and SIB, or if not notified may be the same as for A-PDSCH containing SIB1 and A-PDCCH containing DCI to schedule A-PDSCH.
  • a terminal 20 that has received this setting does not need to receive at least one of the B-PDSCH containing paging information and the B-PDCCH containing DCI for scheduling the B-PDSCH.
  • the DCI that schedules the A-PDSCH containing paging information may schedule at least one of the B-PDSCH and A-PDSCH, such as cross carrier scheduling.
  • the paging information included in the A-PDSCH may include one or more UE identifiers.
  • the terminal 20 whose UE identifier matches its own UE identifier assumes that the paging information is intended for itself, and performs a UE state change operation (for example, transitions to RRC CONNECTED state by random access processing). you can go
  • the UE identifier in this case may be notified in common for the baseline channel and the additional channel, or may be notified individually. That is, the state management of the terminal 20 may be performed in common for the baseline channel and the additional channel, or may be performed separately.
  • the A-PDSCH containing paging information and the A-PDCCH containing DCI for scheduling the A-PDSCH may be received by terminals 20 having specific types or terminal capabilities.
  • A-PDSCH and B-PDSCH containing paging information and A-PDCCH and B-PDCCH containing DCI that schedules them are time, frequency or code in the same BWP or another BWP in the same cell. may be multiplexed or may be transmitted in another cell. That is, a common BWP may be defined or set for the baseline channel and the additional channel, or individual BWPs may be defined or set.
  • terminal 20 uses the same transmission beam (spatial filter) for at least one of A-PDSCH and B-PDSCH containing paging information and A-PDCCH and B-PDCCH containing DCI for scheduling them. may be assumed to be transmitted.
  • the assumption is that the A-PDSCH and B-PDSCH containing paging information and/or the A-PDCCH and B-PDCCH containing DCI to schedule them are the same BWP, the same cell, the same It may be limited to the case where it exists in at least one of the frequency band and the same frequency band (FR1/FR2).
  • terminal 20 uses the same transmission beam (spatial filter) for at least one of A-PDSCH and B-PDSCH having a specific correspondence relationship and A-PDCCH and B-PDCCH having a specific correspondence relationship. may be assumed to be transmitted.
  • the terminal 20 may be notified by the base station 10 whether or not it has a specific correspondence relationship. Notification of whether to have a specific correspondence relationship may be included in the B-PDSCH containing the paging information, or a signal/channel of a baseline channel other than the B-PDSCH containing the paging information (for example, the paging information B-PDSCH, etc. that does not contain paging information), or an additional channel (third band) signal that is different from the additional channel (second band) on which the A-PDSCH containing paging information is transmitted / channel (eg, A-PDSCH, which does not contain paging information).
  • a signal/channel of a baseline channel other than the B-PDSCH containing the paging information for example, the paging information B-PDSCH, etc. that does not contain paging information
  • an additional channel (third band) signal that is different from the additional channel (second band) on which the A-PDSCH containing paging information is transmitted / channel (eg, A-PDSCH,
  • A-PDSCH and B-PDSCH containing paging information and A-PDCCH and B-PDCCH containing DCI to schedule them overlap in the time domain, that is, frequency or code multiplexing At times, they may have a specific correspondence relationship.
  • the case of having a specific correspondence relationship may be limited to at least one of the same BWP, the same cell, the same frequency band, and the same frequency band (FR1/FR2).
  • terminal 20 may assume that the transmission cycles of at least one of A-PDSCH and B-PDSCH containing paging information and A-PDCCH and B-PDCCH containing DCI for scheduling them are the same. and may be assumed to be different. Furthermore, terminal 20 may assume that at least one of A-PDSCH and B-PDSCH having a specific correspondence relationship and A-PDCCH and B-PDCCH having a specific correspondence relationship have the same transmission cycle. .
  • the terminal 20 receives the shared channel (B-PDSCH) of the baseline channel including the paging information.
  • B-PDSCH shared channel
  • the terminal 20 may receive the A-PDSCH including the paging information.
  • A-PDSCH shared channel
  • the wireless communication system may implement both the first and third embodiments, or both the second and third embodiments. Also, the wireless communication system may implement any of the first, second, and third embodiments. By implementing the first or second embodiment together with the third embodiment, system information and paging information can be transmitted and received in a distributed manner, so resources can be effectively utilized.
  • the technology according to the present embodiment described above provides a technology that enables appropriate use of resources according to capabilities.
  • FIG. 15 is a diagram showing an example of the functional configuration of the base station 10.
  • the base station 10 has a transmitting section 110, a receiving section 120, a setting section 130, and a control section 140.
  • the functional configuration shown in FIG. 15 is merely an example. As long as the operation according to the embodiment of the present invention can be executed, the functional division and the names of the functional units may be arbitrary. Also, the transmitting unit 110 and the receiving unit 120 may be collectively referred to as a communication unit.
  • the transmission unit 110 includes a function of generating a signal to be transmitted to the terminal 20 side and wirelessly transmitting the signal.
  • the receiving unit 120 includes a function of receiving various signals transmitted from the terminal 20 and acquiring, for example, higher layer information from the received signals. Further, the transmission section 110 has a function of transmitting NR-PSS, NR-SSS, NR-PBCH, DL/UL control signals, DCI by PDCCH, data by PDSCH, and the like to the terminal 20 .
  • the setting unit 130 stores preset setting information and various types of setting information to be transmitted to the terminal 20 in a storage device included in the setting unit 130, and reads them from the storage device as necessary.
  • the control unit 140 schedules DL reception or UL transmission of the terminal 20 via the transmission unit 110 . Also, the control unit 140 includes a function of performing LBT. A functional unit related to signal transmission in control unit 140 may be included in transmitting unit 110 , and a functional unit related to signal reception in control unit 140 may be included in receiving unit 120 . Also, the transmitter 110 may be called a transmitter, and the receiver 120 may be called a receiver.
  • FIG. 16 is a diagram showing an example of the functional configuration of the terminal 20.
  • the terminal 20 has a transmitting section 210, a receiving section 220, a setting section 230, and a control section 240.
  • the functional configuration shown in FIG. 16 is merely an example. As long as the operation according to the embodiment of the present invention can be executed, the functional division and the names of the functional units may be arbitrary.
  • the transmitting unit 210 and the receiving unit 220 may be collectively referred to as a communication unit.
  • the transmission unit 210 creates a transmission signal from the transmission data and wirelessly transmits the transmission signal.
  • the receiving unit 220 wirelessly receives various signals and acquires a higher layer signal from the received physical layer signal.
  • the receiving unit 220 also has a function of receiving NR-PSS, NR-SSS, NR-PBCH, DL/UL/SL control signals, DCI by PDCCH, data by PDSCH, and the like transmitted from the base station 10 .
  • the transmission unit 210 as D2D communication, to the other terminal 20, PSCCH (Physical Sidelink Control Channel), PSSCH (Physical Sidelink Shared Channel), PSDCH (Physical Sidelink Discovery Channel), PSBCH (Physical Sidelink Channel) etc.
  • PSCCH Physical Sidelink Control Channel
  • PSSCH Physical Sidelink Shared Channel
  • PSDCH Physical Sidelink Discovery Channel
  • PSBCH Physical Sidelink Channel
  • the receiving unit 120 may receive PSCCH, PSSCH, PSDCH, PSBCH, or the like from another terminal 20 .
  • the setting unit 230 stores various types of setting information received from the base station 10 or other terminals by the receiving unit 220 in the storage device provided in the setting unit 230, and reads them from the storage device as necessary.
  • the setting unit 230 also stores preset setting information.
  • the control unit 240 controls the terminal 20 . Also, the control unit 240 includes a function of performing LBT.
  • the terminal of this embodiment may be configured as a terminal shown in each section below. Also, the following communication methods may be implemented.
  • the receiving unit further receives a shared channel of the first band including paging information. 5.
  • the terminal according to any one of items 1 to 4.
  • (Section 6) receiving information about a second band within the first band; using together a signal in the first band and a signal in the second band; receiving a broadcast signal on the first band containing system information; The method of communication performed by the terminal.
  • the system information can be received in a more distributed manner by receiving the shared channel of the first band containing the system information.
  • the transmission and reception of the system information can be made more efficient.
  • the transmission and reception of paging information can be realized by receiving the shared channel of the first band including the paging information.
  • the receiving unit further receives a shared channel of the first band including paging information.
  • the terminal according to any one of items 1 to 3.
  • the receiving unit further receives a shared channel of the second band including paging information.
  • a terminal according to Clause 4. (Section 6) receiving information about a second band within the first band; using together a signal in the first band and a signal in the second band; receiving a shared channel on the first band containing system information; The method of communication performed by the terminal.
  • the second item it is possible to receive the shared channel of the second band.
  • the shared channel of the first band and the shared channel of the second band are used together, and only the shared channel of the first band is received except for terminals with specific types or terminal capabilities This allows system information to be received in a more distributed manner.
  • the transmission and reception of paging information can be realized by receiving the shared channel of the first band including the paging information.
  • the transmission and reception of the paging information can be distributed.
  • each functional block may be implemented using one device that is physically or logically coupled, or directly or indirectly using two or more devices that are physically or logically separated (e.g. , wired, wireless, etc.) and may be implemented using these multiple devices.
  • a functional block may be implemented by combining software in the one device or the plurality of devices.
  • Functions include judging, determining, determining, calculating, calculating, processing, deriving, investigating, searching, checking, receiving, transmitting, outputting, accessing, resolving, selecting, choosing, establishing, comparing, assuming, expecting, assuming, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc. can't
  • a functional block (component) that performs transmission is called a transmitting unit or transmitter.
  • the implementation method is not particularly limited.
  • the base station 10, the terminal 20, etc. may function as a computer that performs processing of the wireless communication method of the present disclosure.
  • FIG. 17 is a diagram illustrating an example of hardware configurations of the base station 10 and the terminal 20 according to an embodiment of the present disclosure.
  • the base station 10 and terminal 20 described above are physically configured as a computer device including a processor 1001, a storage device 1002, an auxiliary storage device 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like. good too.
  • the term "apparatus” can be read as a circuit, device, unit, or the like.
  • the hardware configuration of the base station 10 and terminal 20 may be configured to include one or more of each device shown in the figure, or may be configured without some devices.
  • Each function of the base station 10 and the terminal 20 is performed by the processor 1001 performing calculations and controlling communication by the communication device 1004 by loading predetermined software (programs) onto hardware such as the processor 1001 and the storage device 1002. or by controlling at least one of data reading and writing in the storage device 1002 and the auxiliary storage device 1003 .
  • the processor 1001 for example, operates an operating system and controls the entire computer.
  • the processor 1001 may be configured with a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic device, registers, and the like.
  • CPU central processing unit
  • the control unit 140 , the control unit 240 and the like described above may be implemented by the processor 1001 .
  • the processor 1001 reads programs (program codes), software modules, data, etc. from at least one of the auxiliary storage device 1003 and the communication device 1004 to the storage device 1002, and executes various processes according to them.
  • programs program codes
  • software modules software modules
  • data etc.
  • the program a program that causes a computer to execute at least part of the operations described in the above embodiments is used.
  • control unit 140 of base station 10 shown in FIG. 15 may be implemented by a control program stored in storage device 1002 and operated by processor 1001 .
  • FIG. Processor 1001 may be implemented by one or more chips.
  • the program may be transmitted from a network via an electric communication line.
  • the storage device 1002 is a computer-readable recording medium, for example, ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically Erasable Programmable ROM), RAM (Random Access Memory), etc. may be configured.
  • the storage device 1002 may also be called a register, cache, main memory (main storage device), or the like.
  • the storage device 1002 can store executable programs (program code), software modules, etc. for implementing a communication method according to an embodiment of the present disclosure.
  • the auxiliary storage device 1003 is a computer-readable recording medium, for example, an optical disc such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disc, a magneto-optical disc (for example, a compact disc, a digital versatile disc, a Blu -ray disk), smart card, flash memory (eg, card, stick, key drive), floppy disk, magnetic strip, and/or the like.
  • the storage medium described above may be, for example, a database, server, or other suitable medium including at least one of storage device 1002 and secondary storage device 1003 .
  • the communication device 1004 is hardware (transmitting/receiving device) for communicating between computers via at least one of a wired network and a wireless network, and is also called a network device, a network controller, a network card, a communication module, or the like.
  • the communication device 1004 includes a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc. in order to realize at least one of, for example, frequency division duplex (FDD) and time division duplex (TDD).
  • FDD frequency division duplex
  • TDD time division duplex
  • the transceiver may be physically or logically separate implementations for the transmitter and receiver.
  • the input device 1005 is an input device (for example, keyboard, mouse, microphone, switch, button, sensor, etc.) that receives input from the outside.
  • the output device 1006 is an output device (for example, display, speaker, LED lamp, etc.) that outputs to the outside. Note that the input device 1005 and the output device 1006 may be integrated (for example, a touch panel).
  • Each device such as the processor 1001 and the storage device 1002 is connected by a bus 1007 for communicating information.
  • the bus 1007 may be configured using a single bus, or may be configured using different buses between devices.
  • the base station 10 and the terminal 20 include microprocessors, digital signal processors (DSPs), ASICs (Application Specific Integrated Circuits), PLDs (Programmable Logic Devices), FPGAs (Field Programmable Gates and other hardware arrays). , and part or all of each functional block may be implemented by the hardware.
  • processor 1001 may be implemented using at least one of these pieces of hardware.
  • the operations of a plurality of functional units may be physically performed by one component, or the operations of one functional unit may be physically performed by a plurality of components.
  • the processing order may be changed as long as there is no contradiction.
  • the base station 10 and the terminal 20 have been described using functional block diagrams for convenience of explanation of processing, such devices may be implemented in hardware, software, or a combination thereof.
  • the software operated by the processor of the base station 10 according to the embodiment of the present invention and the software operated by the processor of the terminal 20 according to the embodiment of the present invention are stored in random access memory (RAM), flash memory, read-only memory, respectively. (ROM), EPROM, EEPROM, register, hard disk (HDD), removable disk, CD-ROM, database, server, or any other appropriate storage medium.
  • notification of information is not limited to the aspects/embodiments described in the present disclosure, and may be performed using other methods.
  • notification of information includes physical layer signaling (e.g., DCI, UCI (Uplink Control Information)), higher layer signaling (e.g., RRC (Radio Resource Control) signaling, MAC (Medium Access Control) signaling, broadcast information (MIB ( Master Information Block (SIB), System Information Block (SIB), other signals, or a combination thereof.
  • RRC signaling may also be referred to as RRC messages, for example, RRC Connection Setup (RRC Connection Setup) message, RRC connection reconfiguration message, or the like.
  • Each aspect/embodiment described in the present disclosure includes LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4G (4th generation mobile communication system), 5G (5th generation mobile communication system), system), FRA (Future Radio Access), NR (new Radio), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi (registered trademark) )), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, UWB (Ultra-WideBand), Bluetooth (registered trademark), and other suitable systems and extended It may be applied to at least one of the next generation systems. Also, a plurality of systems may be applied in combination (for example, a combination of at least one of LTE and LTE-A and 5G, etc.).
  • a specific operation performed by the base station 10 in this specification may be performed by its upper node in some cases.
  • various operations performed for communication with the terminal 20 may be performed by the base station 10 and other network nodes other than the base station 10 (eg, but not limited to MME or S-GW).
  • the other network node may be a combination of a plurality of other network nodes (for example, MME and S-GW).
  • Information, signals, etc. described in the present disclosure may be output from a higher layer (or a lower layer) to a lower layer (or a higher layer). It may be input and output via multiple network nodes.
  • Input/output information may be stored in a specific location (for example, memory) or managed using a management table. Input/output information and the like can be overwritten, updated, or appended. The output information and the like may be deleted. The entered information and the like may be transmitted to another device.
  • the determination in the present disclosure may be performed by a value represented by 1 bit (0 or 1), may be performed by a boolean (Boolean: true or false), or may be a numerical comparison (for example , comparison with a predetermined value).
  • Software whether referred to as software, firmware, middleware, microcode, hardware description language or otherwise, includes instructions, instruction sets, code, code segments, program code, programs, subprograms, and software modules. , applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, and the like.
  • software, instructions, information, etc. may be transmitted and received via a transmission medium.
  • a transmission medium For example, if the software uses wired technology (coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.) and/or wireless technology (infrared, microwave, etc.), the website, Wired and/or wireless technologies are included within the definition of transmission medium when sent from a server or other remote source.
  • wired technology coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.
  • wireless technology infrared, microwave, etc.
  • data, instructions, commands, information, signals, bits, symbols, chips, etc. may refer to voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these. may be represented by a combination of
  • the channel and/or symbols may be signaling.
  • a signal may also be a message.
  • a component carrier may also be called a carrier frequency, cell, frequency carrier, or the like.
  • system and “network” used in this disclosure are used interchangeably.
  • information, parameters, etc. described in the present disclosure may be expressed using absolute values, may be expressed using relative values from a predetermined value, or may be expressed using other corresponding information.
  • radio resources may be indexed.
  • base station BS
  • radio base station base station
  • base station fixed station
  • NodeB nodeB
  • eNodeB eNodeB
  • gNodeB gNodeB
  • a base station can accommodate one or more (eg, three) cells.
  • the overall coverage area of the base station can be partitioned into multiple smaller areas, each smaller area being associated with a base station subsystem (e.g., an indoor small base station (RRH:
  • RRH indoor small base station
  • 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 serving communication services in this coverage.
  • MS mobile station
  • UE user equipment
  • terminal terminal
  • a mobile station is defined by those skilled in the art as a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless It may also be called a terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable term.
  • At least one of the base station and mobile station may be called a transmitting device, a receiving device, a communication device, or the like.
  • At least one of the base station and the mobile station may be a device mounted on a mobile object, the mobile object itself, or the like.
  • the mobile object may be a vehicle (e.g., car, airplane, etc.), an unmanned mobile object (e.g., drone, self-driving car, etc.), or a robot (manned or unmanned ).
  • at least one of the base station and the mobile station includes devices that do not necessarily move during communication operations.
  • at least one of the base station and the mobile station may be an IoT (Internet of Things) device such as a sensor.
  • IoT Internet of Things
  • the base station in the present disclosure may be read as a terminal.
  • a configuration in which communication between a base station and a terminal is replaced with communication between a plurality of terminals 20 for example, D2D (Device-to-Device), V2X (Vehicle-to-Everything), etc.
  • the terminal 20 may have the functions of the base station 10 described above.
  • words such as "up” and “down” may be replaced with words corresponding to inter-terminal communication (for example, "side”).
  • uplink channels, downlink channels, etc. may be read as side channels.
  • a terminal in the present disclosure may be read as a base station.
  • the base station may have the functions that the terminal has.
  • determining and “determining” used in this disclosure may encompass a wide variety of actions.
  • “Judgement” and “determination” are, for example, judging, calculating, computing, processing, deriving, investigating, looking up, searching, inquiry (eg, lookup in a table, database, or other data structure);
  • “judgment” and “determination” are used to refer to receiving (e.g., receiving information), transmitting (e.g., transmitting information), input, output, access (Accessing) (for example, accessing data in memory) may include deeming that a "judgment” or “decision” has been made.
  • “judgment” and “decision” refer to resolving, selecting, choosing, establishing, comparing, etc.
  • judgment and “decision" can contain.
  • judgment and “decision” may include considering that some action is “judgment” and “decision”.
  • judgment (decision) may be read as “assuming", “expecting”, “considering”, or the like.
  • connection means any direct or indirect connection or coupling between two or more elements, It can include the presence of one or more intermediate elements between two elements being “connected” or “coupled.” Couplings or connections between elements may be physical, logical, or a combination thereof. For example, “connection” may be read as "access”.
  • two elements are defined using at least one of one or more wires, cables, and printed electrical connections and, as some non-limiting and non-exhaustive examples, in the radio frequency domain. , electromagnetic energy having wavelengths in the microwave and optical (both visible and invisible) regions, and the like.
  • the reference signal can also be abbreviated as RS (Reference Signal), and may also be called Pilot depending on the applicable standard.
  • RS Reference Signal
  • any reference to elements using the "first,” “second,” etc. designations used in this disclosure does not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Thus, reference to a first and second element does not imply that only two elements can be employed or that the first element must precede the second element in any way.
  • a radio frame may consist of one or more frames in the time domain. Each frame or frames in the time domain may be referred to as a subframe. A subframe may also consist of one or more slots in the time domain. A subframe may be of a fixed length of time (eg, 1 ms) independent of numerology.
  • a numerology may be a communication parameter that applies to the transmission and/or reception of a signal or channel. Numerology, for example, subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI: Transmission Time Interval), number of symbols per TTI, radio frame configuration, transceiver It may indicate at least one of certain filtering operations performed in the frequency domain, certain windowing operations performed by the transceiver in the time domain, and/or the like.
  • SCS subcarrier spacing
  • TTI Transmission Time Interval
  • TTI Transmission Time Interval
  • transceiver It may indicate at least one of certain filtering operations performed in the frequency domain, certain windowing operations performed by the transceiver in the time domain, and/or the like.
  • a slot may consist of one or more symbols (OFDM (Orthogonal Frequency Division Multiplexing) symbol, SC-FDMA (Single Carrier Frequency Division Multiple Access) symbol, etc.) in the time domain.
  • a slot may be a unit of time based on numerology.
  • a slot may contain multiple mini-slots. Each minislot may consist of one or more symbols in the time domain. A minislot may also be referred to as a subslot. A minislot may consist of fewer symbols than a slot.
  • PDSCH (or PUSCH) transmitted in time units larger than minislots may be referred to as PDSCH (or PUSCH) mapping type A.
  • PDSCH (or PUSCH) transmitted using minislots may be referred to as PDSCH (or PUSCH) mapping type B.
  • Radio frames, subframes, slots, minislots and symbols all represent time units when transmitting signals. Radio frames, subframes, slots, minislots and symbols may be referred to by other corresponding designations.
  • one subframe may be called a Transmission Time Interval (TTI)
  • TTI Transmission Time Interval
  • TTI Transmission Time Interval
  • one slot or one minislot may be called a TTI.
  • TTI Transmission Time Interval
  • 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 may be Note that the unit representing the TTI may be called a slot, mini-slot, or the like instead of a subframe.
  • one slot may be called a unit time. The unit time may differ from cell to cell depending on the neurology.
  • TTI refers to, for example, the minimum scheduling time unit in wireless communication.
  • the base station performs scheduling to allocate radio resources (frequency bandwidth, transmission power, etc. that can be used by each terminal 20) to each terminal 20 on a TTI basis.
  • radio resources frequency bandwidth, transmission power, etc. that can be used by each terminal 20
  • TTI is not limited to this.
  • a TTI may be a transmission time unit such as a channel-encoded data packet (transport block), code block, or codeword, or may be a processing unit such as scheduling and link adaptation. Note that when a TTI is given, the time interval (for example, the number of symbols) in which transport blocks, code blocks, codewords, etc. are actually mapped may be shorter than the TTI.
  • one or more TTIs may be the minimum scheduling time unit. Also, the number of slots (the number of mini-slots) constituting the minimum time unit of the scheduling may be controlled.
  • a TTI having a time length of 1 ms may be called a normal TTI (TTI in LTE Rel. 8-12), normal TTI, long TTI, normal subframe, normal subframe, long subframe, slot, or the like.
  • TTI that is shorter than a normal TTI may also be called a shortened TTI, short TTI, partial or fractional TTI, shortened subframe, short subframe, minislot, subslot, slot, and the like.
  • the long TTI (e.g., normal TTI, subframe, etc.) may be replaced with a TTI having a time length exceeding 1 ms
  • the short TTI e.g., shortened TTI, etc.
  • a TTI having the above TTI length may be read instead.
  • a resource block is a resource allocation unit in the time domain and the frequency domain, and may include one or more consecutive subcarriers in the frequency domain.
  • the number of subcarriers included in the RB may be the same regardless of the numerology, and may be 12, for example.
  • the number of subcarriers included in an RB may be determined based on numerology.
  • the time domain of an RB may include one or more symbols and may be 1 slot, 1 minislot, 1 subframe, or 1 TTI long.
  • One TTI, one subframe, etc. may each consist of one or more resource blocks.
  • One or more RBs are physical resource blocks (PRB: Physical RB), sub-carrier groups (SCG: Sub-Carrier Group), resource element groups (REG: Resource Element Group), PRB pairs, RB pairs, etc. may be called.
  • PRB Physical resource blocks
  • SCG Sub-Carrier Group
  • REG Resource Element Group
  • PRB pairs RB pairs, etc.
  • a resource block may be composed of one or more resource elements (RE: Resource Element).
  • RE Resource Element
  • 1 RE may be a radio resource region of 1 subcarrier and 1 symbol.
  • a bandwidth part (which may also be called a partial bandwidth, etc.) may represent a subset of contiguous common resource blocks (RBs) for a certain numerology in a certain carrier.
  • the common RB may be identified by an RB index based on the common reference point of the carrier.
  • PRBs may be defined in a BWP and numbered within that BWP.
  • the BWP may include a BWP for UL (UL BWP) and a BWP for DL (DL BWP).
  • UL BWP UL BWP
  • DL BWP DL BWP
  • One or multiple BWPs may be configured for a UE within one carrier.
  • At least one of the configured BWPs may be active, and the UE may not expect to transmit or receive a given signal/channel outside the active BWP.
  • BWP bitmap
  • radio frames, subframes, slots, minislots and symbols described above are only examples.
  • the number of subframes contained in a radio frame the number of slots per subframe or radio frame, the number of minislots contained within a slot, the number of symbols and RBs contained in a slot or minislot, the number of Configurations such as the number of subcarriers, the number of symbols in a TTI, the symbol length, the Cyclic Prefix (CP) length, etc.
  • CP Cyclic Prefix
  • a and B are different may mean “A and B are different from each other.”
  • the term may also mean that "A and B are different from C”.
  • Terms such as “separate,” “coupled,” etc. may also be interpreted in the same manner as “different.”
  • notification of predetermined information is not limited to being performed explicitly, but may be performed implicitly (for example, not notifying the predetermined information). good too.
  • base station 110 transmitting unit 120 receiving unit 130 setting unit 140 control unit 20 terminal 210 transmitting unit 220 receiving unit 230 setting unit 240 control unit 1001 processor 1002 storage device 1003 auxiliary storage device 1004 communication device 1005 input device 1006 output device

Abstract

Ce terminal comprend : une unité de réception qui reçoit, dans une première bande, des informations relatives à une seconde bande ; et une unité de commande qui utilise à la fois un signal dans la première bande et un signal dans la seconde bande. L'unité de réception reçoit un canal partagé de la première bande qui comprend des informations système.
PCT/JP2021/027220 2021-07-20 2021-07-20 Terminal et procédé de communication WO2023002587A1 (fr)

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JP2019525505A (ja) * 2016-06-12 2019-09-05 グァンドン オッポ モバイル テレコミュニケーションズ コーポレーション リミテッドＧｕａｎｇｄｏｎｇ Ｏｐｐｏ Ｍｏｂｉｌｅ Ｔｅｌｅｃｏｍｍｕｎｉｃａｔｉｏｎｓ Ｃｏｒｐ．， Ｌｔｄ． データ伝送のための方法、端末と基地局
JP2020523901A (ja) * 2017-06-16 2020-08-06 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． 帯域幅リソース構成方法、装置、およびシステム
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JP2021044820A (ja) * 2015-07-10 2021-03-18 クゥアルコム・インコーポレイテッドＱｕａｌｃｏｍｍ Ｉｎｃｏｒｐｏｒａｔｅｄ マシンタイプ通信のための共通探索空間
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